opus_encoder.c revision 2bd8b54017b5320bc0c1df9bf86f4cdc9f8db242
12bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Copyright (c) 2010-2011 Xiph.Org Foundation, Skype Limited 22bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Written by Jean-Marc Valin and Koen Vos */ 32bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* 42bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Redistribution and use in source and binary forms, with or without 52bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian modification, are permitted provided that the following conditions 62bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian are met: 72bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 82bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian - Redistributions of source code must retain the above copyright 92bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian notice, this list of conditions and the following disclaimer. 102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian - Redistributions in binary form must reproduce the above copyright 122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian notice, this list of conditions and the following disclaimer in the 132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian documentation and/or other materials provided with the distribution. 142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian*/ 272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef HAVE_CONFIG_H 292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "config.h" 302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include <stdarg.h> 332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "celt.h" 342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "entenc.h" 352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "modes.h" 362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "API.h" 372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "stack_alloc.h" 382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "float_cast.h" 392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "opus.h" 402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "arch.h" 412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "opus_private.h" 422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "os_support.h" 432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "cpu_support.h" 442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "analysis.h" 452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "mathops.h" 462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "tuning_parameters.h" 472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "fixed/structs_FIX.h" 492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#include "float/structs_FLP.h" 512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define MAX_ENCODER_BUFFER 480 542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramaniantypedef struct { 562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 XX, XY, YY; 572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 smoothed_width; 582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 max_follower; 592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} StereoWidthState; 602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstruct OpusEncoder { 622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int celt_enc_offset; 632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int silk_enc_offset; 642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_EncControlStruct silk_mode; 652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int application; 662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int channels; 672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int force_channels; 692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int signal_type; 702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int user_bandwidth; 712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int max_bandwidth; 722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int user_forced_mode; 732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int voice_ratio; 742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 Fs; 752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int use_vbr; 762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int vbr_constraint; 772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int variable_duration; 782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 bitrate_bps; 792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 user_bitrate_bps; 802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int lsb_depth; 812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int encoder_buffer; 822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int lfe; 832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define OPUS_ENCODER_RESET_START stream_channels 852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int stream_channels; 862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int16 hybrid_stereo_width_Q14; 872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 variable_HP_smth2_Q15; 882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 prev_HB_gain; 892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 hp_mem[4]; 902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int mode; 912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int prev_mode; 922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int prev_channels; 932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int prev_framesize; 942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bandwidth; 952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int silk_bw_switch; 962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Sampling rate (at the API level) */ 972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int first; 982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 * energy_masking; 992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian StereoWidthState width_mem; 1002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 delay_buffer[MAX_ENCODER_BUFFER*2]; 1012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 1022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian TonalityAnalysisState analysis; 1032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int detected_bandwidth; 1042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int analysis_offset; 1052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 1062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_uint32 rangeFinal; 1072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int arch; 1082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Transition tables for the voice and music. First column is the 1112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian middle (memoriless) threshold. The second column is the hysteresis 1122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian (difference with the middle) */ 1132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 mono_voice_bandwidth_thresholds[8] = { 1142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11000, 1000, /* NB<->MB */ 1152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14000, 1000, /* MB<->WB */ 1162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17000, 1000, /* WB<->SWB */ 1172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 21000, 2000, /* SWB<->FB */ 1182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 mono_music_bandwidth_thresholds[8] = { 1202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12000, 1000, /* NB<->MB */ 1212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15000, 1000, /* MB<->WB */ 1222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18000, 2000, /* WB<->SWB */ 1232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 22000, 2000, /* SWB<->FB */ 1242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 stereo_voice_bandwidth_thresholds[8] = { 1262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11000, 1000, /* NB<->MB */ 1272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14000, 1000, /* MB<->WB */ 1282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 21000, 2000, /* WB<->SWB */ 1292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 28000, 2000, /* SWB<->FB */ 1302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 stereo_music_bandwidth_thresholds[8] = { 1322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12000, 1000, /* NB<->MB */ 1332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18000, 2000, /* MB<->WB */ 1342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 21000, 2000, /* WB<->SWB */ 1352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 30000, 2000, /* SWB<->FB */ 1362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Threshold bit-rates for switching between mono and stereo */ 1382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 stereo_voice_threshold = 30000; 1392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 stereo_music_threshold = 30000; 1402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Threshold bit-rate for switching between SILK/hybrid and CELT-only */ 1422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic const opus_int32 mode_thresholds[2][2] = { 1432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* voice */ /* music */ 1442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 64000, 16000}, /* mono */ 1452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 36000, 16000}, /* stereo */ 1462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian}; 1472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianint opus_encoder_get_size(int channels) 1492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 1502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int silkEncSizeBytes, celtEncSizeBytes; 1512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret; 1522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (channels<1 || channels > 2) 1532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return 0; 1542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = silk_Get_Encoder_Size( &silkEncSizeBytes ); 1552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret) 1562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return 0; 1572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silkEncSizeBytes = align(silkEncSizeBytes); 1582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celtEncSizeBytes = celt_encoder_get_size(channels); 1592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return align(sizeof(OpusEncoder))+silkEncSizeBytes+celtEncSizeBytes; 1602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 1612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianint opus_encoder_init(OpusEncoder* st, opus_int32 Fs, int channels, int application) 1632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 1642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian void *silk_enc; 1652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian CELTEncoder *celt_enc; 1662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int err; 1672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret, silkEncSizeBytes; 1682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if((Fs!=48000&&Fs!=24000&&Fs!=16000&&Fs!=12000&&Fs!=8000)||(channels!=1&&channels!=2)|| 1702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian (application != OPUS_APPLICATION_VOIP && application != OPUS_APPLICATION_AUDIO 1712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian && application != OPUS_APPLICATION_RESTRICTED_LOWDELAY)) 1722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_BAD_ARG; 1732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OPUS_CLEAR((char*)st, opus_encoder_get_size(channels)); 1752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Create SILK encoder */ 1762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = silk_Get_Encoder_Size( &silkEncSizeBytes ); 1772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret) 1782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_BAD_ARG; 1792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silkEncSizeBytes = align(silkEncSizeBytes); 1802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_enc_offset = align(sizeof(OpusEncoder)); 1812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->celt_enc_offset = st->silk_enc_offset+silkEncSizeBytes; 1822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_enc = (char*)st+st->silk_enc_offset; 1832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_enc = (CELTEncoder*)((char*)st+st->celt_enc_offset); 1842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = st->channels = channels; 1862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->Fs = Fs; 1882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->arch = opus_select_arch(); 1902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = silk_InitEncoder( silk_enc, st->arch, &st->silk_mode ); 1922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(ret)return OPUS_INTERNAL_ERROR; 1932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* default SILK parameters */ 1952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.nChannelsAPI = channels; 1962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.nChannelsInternal = channels; 1972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.API_sampleRate = st->Fs; 1982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 16000; 1992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.minInternalSampleRate = 8000; 2002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = 16000; 2012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.payloadSize_ms = 20; 2022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate = 25000; 2032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.packetLossPercentage = 0; 2042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.complexity = 9; 2052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useInBandFEC = 0; 2062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useDTX = 0; 2072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useCBR = 0; 2082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.reducedDependency = 0; 2092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Create CELT encoder */ 2112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Initialize CELT encoder */ 2122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian err = celt_encoder_init(celt_enc, Fs, channels, st->arch); 2132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(err!=OPUS_OK)return OPUS_INTERNAL_ERROR; 2142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_SIGNALLING(0)); 2162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_COMPLEXITY(st->silk_mode.complexity)); 2172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->use_vbr = 1; 2192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Makes constrained VBR the default (safer for real-time use) */ 2202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->vbr_constraint = 1; 2212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bitrate_bps = OPUS_AUTO; 2222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bitrate_bps = 3000+Fs*channels; 2232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->application = application; 2242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->signal_type = OPUS_AUTO; 2252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bandwidth = OPUS_AUTO; 2262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->max_bandwidth = OPUS_BANDWIDTH_FULLBAND; 2272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->force_channels = OPUS_AUTO; 2282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_forced_mode = OPUS_AUTO; 2292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->voice_ratio = -1; 2302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->encoder_buffer = st->Fs/100; 2312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->lsb_depth = 24; 2322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration = OPUS_FRAMESIZE_ARG; 2332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Delay compensation of 4 ms (2.5 ms for SILK's extra look-ahead 2352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + 1.5 ms for SILK resamplers and stereo prediction) */ 2362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->delay_compensation = st->Fs/250; 2372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->hybrid_stereo_width_Q14 = 1 << 14; 2392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_HB_gain = Q15ONE; 2402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_HP_smth2_Q15 = silk_LSHIFT( silk_lin2log( VARIABLE_HP_MIN_CUTOFF_HZ ), 8 ); 2412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->first = 1; 2422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_HYBRID; 2432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_FULLBAND; 2442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_OK; 2462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 2472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic unsigned char gen_toc(int mode, int framerate, int bandwidth, int channels) 2492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 2502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int period; 2512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char toc; 2522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian period = 0; 2532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while (framerate < 400) 2542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 2552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian framerate <<= 1; 2562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian period++; 2572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 2582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (mode == MODE_SILK_ONLY) 2592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 2602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc = (bandwidth-OPUS_BANDWIDTH_NARROWBAND)<<5; 2612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= (period-2)<<3; 2622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (mode == MODE_CELT_ONLY) 2632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 2642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tmp = bandwidth-OPUS_BANDWIDTH_MEDIUMBAND; 2652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (tmp < 0) 2662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp = 0; 2672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc = 0x80; 2682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= tmp << 5; 2692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= period<<3; 2702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else /* Hybrid */ 2712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 2722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc = 0x60; 2732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= (bandwidth-OPUS_BANDWIDTH_SUPERWIDEBAND)<<4; 2742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= (period-2)<<3; 2752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 2762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian toc |= (channels==2)<<2; 2772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return toc; 2782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 2792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef FIXED_POINT 2812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void silk_biquad_float( 2822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_val16 *in, /* I: Input signal */ 2832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int32 *B_Q28, /* I: MA coefficients [3] */ 2842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int32 *A_Q28, /* I: AR coefficients [2] */ 2852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 *S, /* I/O: State vector [2] */ 2862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 *out, /* O: Output signal */ 2872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int32 len, /* I: Signal length (must be even) */ 2882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int stride 2892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian) 2902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 2912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* DIRECT FORM II TRANSPOSED (uses 2 element state vector) */ 2922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int k; 2932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 vout; 2942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 inval; 2952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 A[2], B[3]; 2962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A[0] = (opus_val32)(A_Q28[0] * (1.f/((opus_int32)1<<28))); 2982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A[1] = (opus_val32)(A_Q28[1] * (1.f/((opus_int32)1<<28))); 2992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B[0] = (opus_val32)(B_Q28[0] * (1.f/((opus_int32)1<<28))); 3002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B[1] = (opus_val32)(B_Q28[1] * (1.f/((opus_int32)1<<28))); 3012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B[2] = (opus_val32)(B_Q28[2] * (1.f/((opus_int32)1<<28))); 3022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Negate A_Q28 values and split in two parts */ 3042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for( k = 0; k < len; k++ ) { 3062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* S[ 0 ], S[ 1 ]: Q12 */ 3072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian inval = in[ k*stride ]; 3082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian vout = S[ 0 ] + B[0]*inval; 3092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian S[ 0 ] = S[1] - vout*A[0] + B[1]*inval; 3112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian S[ 1 ] = - vout*A[1] + B[2]*inval + VERY_SMALL; 3132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Scale back to Q0 and saturate */ 3152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[ k*stride ] = vout; 3162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 3172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 3182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 3192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs) 3212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 3222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 B_Q28[ 3 ], A_Q28[ 2 ]; 3232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 Fc_Q19, r_Q28, r_Q22; 3242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_assert( cutoff_Hz <= silk_int32_MAX / SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ) ); 3262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Fc_Q19 = silk_DIV32_16( silk_SMULBB( SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ), cutoff_Hz ), Fs/1000 ); 3272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_assert( Fc_Q19 > 0 && Fc_Q19 < 32768 ); 3282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian r_Q28 = SILK_FIX_CONST( 1.0, 28 ) - silk_MUL( SILK_FIX_CONST( 0.92, 9 ), Fc_Q19 ); 3302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* b = r * [ 1; -2; 1 ]; */ 3322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* a = [ 1; -2 * r * ( 1 - 0.5 * Fc^2 ); r^2 ]; */ 3332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B_Q28[ 0 ] = r_Q28; 3342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B_Q28[ 1 ] = silk_LSHIFT( -r_Q28, 1 ); 3352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian B_Q28[ 2 ] = r_Q28; 3362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* -r * ( 2 - Fc * Fc ); */ 3382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian r_Q22 = silk_RSHIFT( r_Q28, 6 ); 3392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A_Q28[ 0 ] = silk_SMULWW( r_Q22, silk_SMULWW( Fc_Q19, Fc_Q19 ) - SILK_FIX_CONST( 2.0, 22 ) ); 3402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian A_Q28[ 1 ] = silk_SMULWW( r_Q22, r_Q22 ); 3412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 3432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_biquad_alt( in, B_Q28, A_Q28, hp_mem, out, len, channels ); 3442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( channels == 2 ) { 3452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_biquad_alt( in+1, B_Q28, A_Q28, hp_mem+2, out+1, len, channels ); 3462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 3472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 3482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_biquad_float( in, B_Q28, A_Q28, hp_mem, out, len, channels ); 3492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( channels == 2 ) { 3502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_biquad_float( in+1, B_Q28, A_Q28, hp_mem+2, out+1, len, channels ); 3512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 3522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 3532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 3542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 3562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void dc_reject(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs) 3572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 3582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c, i; 3592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int shift; 3602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Approximates -round(log2(4.*cutoff_Hz/Fs)) */ 3622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian shift=celt_ilog2(Fs/(cutoff_Hz*3)); 3632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (c=0;c<channels;c++) 3642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 3652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<len;i++) 3662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 3672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 x, tmp, y; 3682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = SHL32(EXTEND32(in[channels*i+c]), 15); 3692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* First stage */ 3702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp = x-hp_mem[2*c]; 3712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_mem[2*c] = hp_mem[2*c] + PSHR32(x - hp_mem[2*c], shift); 3722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Second stage */ 3732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = tmp - hp_mem[2*c+1]; 3742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_mem[2*c+1] = hp_mem[2*c+1] + PSHR32(tmp - hp_mem[2*c+1], shift); 3752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[channels*i+c] = EXTRACT16(SATURATE(PSHR32(y, 15), 32767)); 3762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 3772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 3782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 3792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 3812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void dc_reject(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs) 3822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 3832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c, i; 3842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float coef; 3852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian coef = 4.0f*cutoff_Hz/Fs; 3872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (c=0;c<channels;c++) 3882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 3892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<len;i++) 3902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 3912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 x, tmp, y; 3922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = in[channels*i+c]; 3932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* First stage */ 3942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp = x-hp_mem[2*c]; 3952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_mem[2*c] = hp_mem[2*c] + coef*(x - hp_mem[2*c]) + VERY_SMALL; 3962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Second stage */ 3972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = tmp - hp_mem[2*c+1]; 3982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_mem[2*c+1] = hp_mem[2*c+1] + coef*(tmp - hp_mem[2*c+1]) + VERY_SMALL; 3992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[channels*i+c] = y; 4002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 4032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 4042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 4052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void stereo_fade(const opus_val16 *in, opus_val16 *out, opus_val16 g1, opus_val16 g2, 4062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int overlap48, int frame_size, int channels, const opus_val16 *window, opus_int32 Fs) 4072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 4082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 4092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int overlap; 4102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int inc; 4112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian inc = 48000/Fs; 4122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian overlap=overlap48/inc; 4132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g1 = Q15ONE-g1; 4142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g2 = Q15ONE-g2; 4152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<overlap;i++) 4162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 diff; 4182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g, w; 4192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian w = MULT16_16_Q15(window[i*inc], window[i*inc]); 4202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g = SHR32(MAC16_16(MULT16_16(w,g2), 4212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Q15ONE-w, g1), 15); 4222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian diff = EXTRACT16(HALF32((opus_val32)in[i*channels] - (opus_val32)in[i*channels+1])); 4232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian diff = MULT16_16_Q15(g, diff); 4242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*channels] = out[i*channels] - diff; 4252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*channels+1] = out[i*channels+1] + diff; 4262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (;i<frame_size;i++) 4282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 diff; 4302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian diff = EXTRACT16(HALF32((opus_val32)in[i*channels] - (opus_val32)in[i*channels+1])); 4312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian diff = MULT16_16_Q15(g2, diff); 4322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*channels] = out[i*channels] - diff; 4332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*channels+1] = out[i*channels+1] + diff; 4342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 4362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 4372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic void gain_fade(const opus_val16 *in, opus_val16 *out, opus_val16 g1, opus_val16 g2, 4382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int overlap48, int frame_size, int channels, const opus_val16 *window, opus_int32 Fs) 4392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 4402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 4412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int inc; 4422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int overlap; 4432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c; 4442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian inc = 48000/Fs; 4452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian overlap=overlap48/inc; 4462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (channels==1) 4472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<overlap;i++) 4492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g, w; 4512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian w = MULT16_16_Q15(window[i*inc], window[i*inc]); 4522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g = SHR32(MAC16_16(MULT16_16(w,g2), 4532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Q15ONE-w, g1), 15); 4542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i] = MULT16_16_Q15(g, in[i]); 4552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 4572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<overlap;i++) 4582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g, w; 4602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian w = MULT16_16_Q15(window[i*inc], window[i*inc]); 4612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g = SHR32(MAC16_16(MULT16_16(w,g2), 4622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Q15ONE-w, g1), 15); 4632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*2] = MULT16_16_Q15(g, in[i*2]); 4642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*2+1] = MULT16_16_Q15(g, in[i*2+1]); 4652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian c=0;do { 4682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=overlap;i<frame_size;i++) 4692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian out[i*channels+c] = MULT16_16_Q15(g2, in[i*channels+c]); 4712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while (++c<channels); 4742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 4752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 4762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh VenkatasubramanianOpusEncoder *opus_encoder_create(opus_int32 Fs, int channels, int application, int *error) 4772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 4782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret; 4792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OpusEncoder *st; 4802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if((Fs!=48000&&Fs!=24000&&Fs!=16000&&Fs!=12000&&Fs!=8000)||(channels!=1&&channels!=2)|| 4812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian (application != OPUS_APPLICATION_VOIP && application != OPUS_APPLICATION_AUDIO 4822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian && application != OPUS_APPLICATION_RESTRICTED_LOWDELAY)) 4832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (error) 4852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *error = OPUS_BAD_ARG; 4862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return NULL; 4872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st = (OpusEncoder *)opus_alloc(opus_encoder_get_size(channels)); 4892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st == NULL) 4902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 4912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (error) 4922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *error = OPUS_ALLOC_FAIL; 4932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return NULL; 4942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 4952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = opus_encoder_init(st, Fs, channels, application); 4962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (error) 4972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *error = ret; 4982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret != OPUS_OK) 4992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_free(st); 5012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st = NULL; 5022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 5032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return st; 5042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 5052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic opus_int32 user_bitrate_to_bitrate(OpusEncoder *st, int frame_size, int max_data_bytes) 5072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 5082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(!frame_size)frame_size=st->Fs/400; 5092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->user_bitrate_bps==OPUS_AUTO) 5102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return 60*st->Fs/frame_size + st->Fs*st->channels; 5112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (st->user_bitrate_bps==OPUS_BITRATE_MAX) 5122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return max_data_bytes*8*st->Fs/frame_size; 5132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 5142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return st->user_bitrate_bps; 5152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 5162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 5182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Don't use more than 60 ms for the frame size analysis */ 5192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define MAX_DYNAMIC_FRAMESIZE 24 5202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Estimates how much the bitrate will be boosted based on the sub-frame energy */ 5212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic float transient_boost(const float *E, const float *E_1, int LM, int maxM) 5222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 5232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 5242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int M; 5252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float sumE=0, sumE_1=0; 5262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float metric; 5272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian M = IMIN(maxM, (1<<LM)+1); 5292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<M;i++) 5302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sumE += E[i]; 5322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sumE_1 += E_1[i]; 5332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 5342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian metric = sumE*sumE_1/(M*M); 5352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*if (LM==3) 5362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian printf("%f\n", metric);*/ 5372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*return metric>10 ? 1 : 0;*/ 5382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*return MAX16(0,1-exp(-.25*(metric-2.)));*/ 5392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return MIN16(1,(float)sqrt(MAX16(0,.05f*(metric-2)))); 5402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 5412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/* Viterbi decoding trying to find the best frame size combination using look-ahead 5432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian State numbering: 5452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 0: unused 5462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1: 2.5 ms 5472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 2: 5 ms (#1) 5482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 3: 5 ms (#2) 5492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 4: 10 ms (#1) 5502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5: 10 ms (#2) 5512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6: 10 ms (#3) 5522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 7: 10 ms (#4) 5532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8: 20 ms (#1) 5542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9: 20 ms (#2) 5552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10: 20 ms (#3) 5562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11: 20 ms (#4) 5572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12: 20 ms (#5) 5582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13: 20 ms (#6) 5592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14: 20 ms (#7) 5602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15: 20 ms (#8) 5612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian*/ 5622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianstatic int transient_viterbi(const float *E, const float *E_1, int N, int frame_cost, int rate) 5632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 5642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 5652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float cost[MAX_DYNAMIC_FRAMESIZE][16]; 5662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int states[MAX_DYNAMIC_FRAMESIZE][16]; 5672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float best_cost; 5682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int best_state; 5692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float factor; 5702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Take into account that we damp VBR in the 32 kb/s to 64 kb/s range. */ 5712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (rate<80) 5722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian factor=0; 5732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (rate>160) 5742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian factor=1; 5752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 5762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian factor = (rate-80.f)/80.f; 5772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Makes variable framesize less aggressive at lower bitrates, but I can't 5782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian find any valid theoretical justification for this (other than it seems 5792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian to help) */ 5802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<16;i++) 5812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Impossible state */ 5832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian states[0][i] = -1; 5842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[0][i] = 1e10; 5852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 5862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<4;i++) 5872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[0][1<<i] = (frame_cost + rate*(1<<i))*(1+factor*transient_boost(E, E_1, i, N+1)); 5892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian states[0][1<<i] = i; 5902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 5912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=1;i<N;i++) 5922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int j; 5942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 5952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Follow continuations */ 5962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=2;j<16;j++) 5972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 5982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[i][j] = cost[i-1][j-1]; 5992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian states[i][j] = j-1; 6002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* New frames */ 6032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for(j=0;j<4;j++) 6042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int k; 6062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float min_cost; 6072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float curr_cost; 6082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian states[i][1<<j] = 1; 6092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_cost = cost[i-1][1]; 6102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for(k=1;k<4;k++) 6112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float tmp = cost[i-1][(1<<(k+1))-1]; 6132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (tmp < min_cost) 6142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian states[i][1<<j] = (1<<(k+1))-1; 6162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_cost = tmp; 6172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian curr_cost = (frame_cost + rate*(1<<j))*(1+factor*transient_boost(E+i, E_1+i, j, N-i+1)); 6202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[i][1<<j] = min_cost; 6212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* If part of the frame is outside the analysis window, only count part of the cost */ 6222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (N-i < (1<<j)) 6232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[i][1<<j] += curr_cost*(float)(N-i)/(1<<j); 6242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 6252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cost[i][1<<j] += curr_cost; 6262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian best_state=1; 6302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian best_cost = cost[N-1][1]; 6312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Find best end state (doesn't force a frame to end at N-1) */ 6322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=2;i<16;i++) 6332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (cost[N-1][i]<best_cost) 6352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian best_cost = cost[N-1][i]; 6372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian best_state = i; 6382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Follow transitions back */ 6422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=N-1;i>=0;i--) 6432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*printf("%d ", best_state);*/ 6452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian best_state = states[i][best_state]; 6462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*printf("%d\n", best_state);*/ 6482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return best_state; 6492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 6502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianint optimize_framesize(const opus_val16 *x, int len, int C, opus_int32 Fs, 6522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bitrate, opus_val16 tonality, float *mem, int buffering, 6532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian downmix_func downmix) 6542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 6552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int N; 6562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 6572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float e[MAX_DYNAMIC_FRAMESIZE+4]; 6582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float e_1[MAX_DYNAMIC_FRAMESIZE+3]; 6592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 memx; 6602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bestLM=0; 6612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int subframe; 6622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int pos; 6632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(opus_val32, sub); 6642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian subframe = Fs/400; 6662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(sub, subframe, opus_val32); 6672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e[0]=mem[0]; 6682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e_1[0]=1.f/(EPSILON+mem[0]); 6692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (buffering) 6702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Consider the CELT delay when not in restricted-lowdelay */ 6722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* We assume the buffering is between 2.5 and 5 ms */ 6732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int offset = 2*subframe - buffering; 6742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_assert(offset>=0 && offset <= subframe); 6752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x += C*offset; 6762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian len -= offset; 6772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e[1]=mem[1]; 6782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e_1[1]=1.f/(EPSILON+mem[1]); 6792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e[2]=mem[2]; 6802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e_1[2]=1.f/(EPSILON+mem[2]); 6812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pos = 3; 6822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 6832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pos=1; 6842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 6852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian N=IMIN(len/subframe, MAX_DYNAMIC_FRAMESIZE); 6862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Just silencing a warning, it's really initialized later */ 6872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian memx = 0; 6882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<N;i++) 6892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 6902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian float tmp; 6912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 tmpx; 6922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int j; 6932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp=EPSILON; 6942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 6952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian downmix(x, sub, subframe, i*subframe, 0, -2, C); 6962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (i==0) 6972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian memx = sub[0]; 6982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 6992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmpx = sub[j]; 7012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp += (tmpx-memx)*(float)(tmpx-memx); 7022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian memx = tmpx; 7032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e[i+pos] = tmp; 7052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e_1[i+pos] = 1.f/tmp; 7062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Hack to get 20 ms working with APPLICATION_AUDIO 7082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian The real problem is that the corresponding memory needs to use 1.5 ms 7092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian from this frame and 1 ms from the next frame */ 7102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian e[i+pos] = e[i+pos-1]; 7112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (buffering) 7122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian N=IMIN(MAX_DYNAMIC_FRAMESIZE, N+2); 7132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bestLM = transient_viterbi(e, e_1, N, (int)((1.f+.5f*tonality)*(60*C+40)), bitrate/400); 7142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem[0] = e[1<<bestLM]; 7152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (buffering) 7162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem[1] = e[(1<<bestLM)+1]; 7182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem[2] = e[(1<<bestLM)+2]; 7192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return bestLM; 7212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 7222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 7232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 7242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 7252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 7262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 7272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define PCM2VAL(x) FLOAT2INT16(x) 7282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 7292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define PCM2VAL(x) SCALEIN(x) 7302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 7312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianvoid downmix_float(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C) 7322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 7332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const float *x; 7342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 scale; 7352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int j; 7362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = (const float *)_x; 7372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] = PCM2VAL(x[(j+offset)*C+c1]); 7392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (c2>-1) 7402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] += PCM2VAL(x[(j+offset)*C+c2]); 7432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (c2==-2) 7442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c; 7462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (c=1;c<C;c++) 7472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] += PCM2VAL(x[(j+offset)*C+c]); 7502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 7532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale = (1<<SIG_SHIFT); 7542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 7552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale = 1.f; 7562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 7572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (C==-2) 7582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale /= C; 7592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 7602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale /= 2; 7612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] *= scale; 7632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 7642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 7652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 7662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianvoid downmix_int(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C) 7672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 7682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int16 *x; 7692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 scale; 7702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int j; 7712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = (const opus_int16 *)_x; 7722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] = x[(j+offset)*C+c1]; 7742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (c2>-1) 7752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] += x[(j+offset)*C+c2]; 7782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (c2==-2) 7792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c; 7812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (c=1;c<C;c++) 7822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 7832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] += x[(j+offset)*C+c]; 7852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 7872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 7882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale = (1<<SIG_SHIFT); 7892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 7902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale = 1.f/32768; 7912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 7922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (C==-2) 7932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale /= C; 7942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 7952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian scale /= 2; 7962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (j=0;j<subframe;j++) 7972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sub[j] *= scale; 7982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 7992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 frame_size_select(opus_int32 frame_size, int variable_duration, opus_int32 Fs) 8012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 8022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int new_size; 8032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_size<Fs/400) 8042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return -1; 8052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (variable_duration == OPUS_FRAMESIZE_ARG) 8062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian new_size = frame_size; 8072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (variable_duration == OPUS_FRAMESIZE_VARIABLE) 8082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian new_size = Fs/50; 8092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (variable_duration >= OPUS_FRAMESIZE_2_5_MS && variable_duration <= OPUS_FRAMESIZE_60_MS) 8102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian new_size = IMIN(3*Fs/50, (Fs/400)<<(variable_duration-OPUS_FRAMESIZE_2_5_MS)); 8112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 8122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return -1; 8132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (new_size>frame_size) 8142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return -1; 8152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (400*new_size!=Fs && 200*new_size!=Fs && 100*new_size!=Fs && 8162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 50*new_size!=Fs && 25*new_size!=Fs && 50*new_size!=3*Fs) 8172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return -1; 8182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return new_size; 8192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 8202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 compute_frame_size(const void *analysis_pcm, int frame_size, 8222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int variable_duration, int C, opus_int32 Fs, int bitrate_bps, 8232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation, downmix_func downmix 8242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 8252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian , float *subframe_mem 8262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 8272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ) 8282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 8292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 8302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (variable_duration == OPUS_FRAMESIZE_VARIABLE && frame_size >= Fs/200) 8312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 8322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int LM = 3; 8332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LM = optimize_framesize(analysis_pcm, frame_size, C, Fs, bitrate_bps, 8342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 0, subframe_mem, delay_compensation, downmix); 8352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while ((Fs/400<<LM)>frame_size) 8362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LM--; 8372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = (Fs/400<<LM); 8382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else 8392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 8402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 8412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = frame_size_select(frame_size, variable_duration, Fs); 8422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 8432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_size<0) 8442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return -1; 8452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return frame_size; 8462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 8472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_val16 compute_stereo_width(const opus_val16 *pcm, int frame_size, opus_int32 Fs, StereoWidthState *mem) 8492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 8502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 corr; 8512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 ldiff; 8522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 width; 8532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 xx, xy, yy; 8542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 sqrt_xx, sqrt_yy; 8552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 qrrt_xx, qrrt_yy; 8562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_rate; 8572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 8582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 short_alpha; 8592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_rate = Fs/frame_size; 8612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian short_alpha = Q15ONE - 25*Q15ONE/IMAX(50,frame_rate); 8622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian xx=xy=yy=0; 8632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<frame_size;i+=4) 8642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 8652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 pxx=0; 8662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 pxy=0; 8672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 pyy=0; 8682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 x, y; 8692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = pcm[2*i]; 8702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = pcm[2*i+1]; 8712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxx = SHR32(MULT16_16(x,x),2); 8722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxy = SHR32(MULT16_16(x,y),2); 8732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pyy = SHR32(MULT16_16(y,y),2); 8742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = pcm[2*i+2]; 8752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = pcm[2*i+3]; 8762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxx += SHR32(MULT16_16(x,x),2); 8772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxy += SHR32(MULT16_16(x,y),2); 8782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pyy += SHR32(MULT16_16(y,y),2); 8792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = pcm[2*i+4]; 8802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = pcm[2*i+5]; 8812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxx += SHR32(MULT16_16(x,x),2); 8822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxy += SHR32(MULT16_16(x,y),2); 8832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pyy += SHR32(MULT16_16(y,y),2); 8842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian x = pcm[2*i+6]; 8852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian y = pcm[2*i+7]; 8862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxx += SHR32(MULT16_16(x,x),2); 8872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pxy += SHR32(MULT16_16(x,y),2); 8882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pyy += SHR32(MULT16_16(y,y),2); 8892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 8902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian xx += SHR32(pxx, 10); 8912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian xy += SHR32(pxy, 10); 8922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian yy += SHR32(pyy, 10); 8932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 8942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->XX += MULT16_32_Q15(short_alpha, xx-mem->XX); 8952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->XY += MULT16_32_Q15(short_alpha, xy-mem->XY); 8962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->YY += MULT16_32_Q15(short_alpha, yy-mem->YY); 8972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->XX = MAX32(0, mem->XX); 8982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->XY = MAX32(0, mem->XY); 8992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->YY = MAX32(0, mem->YY); 9002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (MAX32(mem->XX, mem->YY)>QCONST16(8e-4f, 18)) 9012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 9022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sqrt_xx = celt_sqrt(mem->XX); 9032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sqrt_yy = celt_sqrt(mem->YY); 9042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian qrrt_xx = celt_sqrt(sqrt_xx); 9052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian qrrt_yy = celt_sqrt(sqrt_yy); 9062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Inter-channel correlation */ 9072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->XY = MIN32(mem->XY, sqrt_xx*sqrt_yy); 9082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian corr = SHR32(frac_div32(mem->XY,EPSILON+MULT16_16(sqrt_xx,sqrt_yy)),16); 9092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Approximate loudness difference */ 9102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ldiff = Q15ONE*ABS16(qrrt_xx-qrrt_yy)/(EPSILON+qrrt_xx+qrrt_yy); 9112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian width = MULT16_16_Q15(celt_sqrt(QCONST32(1.f,30)-MULT16_16(corr,corr)), ldiff); 9122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Smoothing over one second */ 9132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->smoothed_width += (width-mem->smoothed_width)/frame_rate; 9142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Peak follower */ 9152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mem->max_follower = MAX16(mem->max_follower-QCONST16(.02f,15)/frame_rate, mem->smoothed_width); 9162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 9172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian width = 0; 9182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian corr=Q15ONE; 9192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ldiff=0; 9202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 9212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*printf("%f %f %f %f %f ", corr/(float)Q15ONE, ldiff/(float)Q15ONE, width/(float)Q15ONE, mem->smoothed_width/(float)Q15ONE, mem->max_follower/(float)Q15ONE);*/ 9222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return EXTRACT16(MIN32(Q15ONE,20*mem->max_follower)); 9232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 9242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_size, 9262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char *data, opus_int32 out_data_bytes, int lsb_depth, 9272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const void *analysis_pcm, opus_int32 analysis_size, int c1, int c2, int analysis_channels, downmix_func downmix) 9282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 9292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian void *silk_enc; 9302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian CELTEncoder *celt_enc; 9312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i; 9322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret=0; 9332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 nBytes; 9342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc enc; 9352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bytes_target; 9362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int prefill=0; 9372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int start_band = 0; 9382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int redundancy = 0; 9392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int redundancy_bytes = 0; /* Number of bytes to use for redundancy frame */ 9402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int celt_to_silk = 0; 9412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(opus_val16, pcm_buf); 9422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int nb_compr_bytes; 9432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int to_celt = 0; 9442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_uint32 redundant_rng = 0; 9452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int cutoff_Hz, hp_freq_smth1; 9462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int voice_est; /* Probability of voice in Q7 */ 9472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 equiv_rate; 9482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 9492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_rate; 9502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 max_rate; /* Max bitrate we're allowed to use */ 9512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int curr_bandwidth; 9522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 HB_gain; 9532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 max_data_bytes; /* Max number of bytes we're allowed to use */ 9542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int total_buffer; 9552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 stereo_width; 9562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const CELTMode *celt_mode; 9572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian AnalysisInfo analysis_info; 9582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int analysis_read_pos_bak=-1; 9592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int analysis_read_subframe_bak=-1; 9602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(opus_val16, tmp_prefill); 9612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC_STACK; 9632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian max_data_bytes = IMIN(1276, out_data_bytes); 9652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->rangeFinal = 0; 9672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ((!st->variable_duration && 400*frame_size != st->Fs && 200*frame_size != st->Fs && 100*frame_size != st->Fs && 9682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 50*frame_size != st->Fs && 25*frame_size != st->Fs && 50*frame_size != 3*st->Fs) 9692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian || (400*frame_size < st->Fs) 9702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian || max_data_bytes<=0 9712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ) 9722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 9732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 9742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_BAD_ARG; 9752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 9762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_enc = (char*)st+st->silk_enc_offset; 9772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_enc = (CELTEncoder*)((char*)st+st->celt_enc_offset); 9782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 9792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = 0; 9802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 9812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = st->delay_compensation; 9822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian lsb_depth = IMIN(lsb_depth, st->lsb_depth); 9842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 9852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian analysis_info.valid = 0; 9862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_GET_MODE(&celt_mode)); 9872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 9882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 9892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.complexity >= 10 && st->Fs==48000) 9902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 9912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.complexity >= 7 && st->Fs==48000) 9922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 9932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 9942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian analysis_read_pos_bak = st->analysis.read_pos; 9952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian analysis_read_subframe_bak = st->analysis.read_subframe; 9962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian run_analysis(&st->analysis, celt_mode, analysis_pcm, analysis_size, frame_size, 9972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian c1, c2, analysis_channels, st->Fs, 9982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian lsb_depth, downmix, &analysis_info); 9992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 10002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 10012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->voice_ratio = -1; 10032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 10052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = 0; 10062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (analysis_info.valid) 10072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int analysis_bandwidth; 10092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->signal_type == OPUS_AUTO) 10102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->voice_ratio = (int)floor(.5+100*(1-analysis_info.music_prob)); 10112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian analysis_bandwidth = analysis_info.bandwidth; 10132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (analysis_bandwidth<=12) 10142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = OPUS_BANDWIDTH_NARROWBAND; 10152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (analysis_bandwidth<=14) 10162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = OPUS_BANDWIDTH_MEDIUMBAND; 10172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (analysis_bandwidth<=16) 10182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = OPUS_BANDWIDTH_WIDEBAND; 10192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (analysis_bandwidth<=18) 10202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = OPUS_BANDWIDTH_SUPERWIDEBAND; 10212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 10222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = OPUS_BANDWIDTH_FULLBAND; 10232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 10242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 10252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->channels==2 && st->force_channels!=1) 10272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_width = compute_stereo_width(pcm, frame_size, st->Fs, &st->width_mem); 10282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 10292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_width = 0; 10302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian total_buffer = delay_compensation; 10312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bitrate_bps = user_bitrate_to_bitrate(st, frame_size, max_data_bytes); 10322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_rate = st->Fs/frame_size; 10342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (max_data_bytes<3 || st->bitrate_bps < 3*frame_rate*8 10352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian || (frame_rate<50 && (max_data_bytes*frame_rate<300 || st->bitrate_bps < 2400))) 10362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*If the space is too low to do something useful, emit 'PLC' frames.*/ 10382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tocmode = st->mode; 10392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bw = st->bandwidth == 0 ? OPUS_BANDWIDTH_NARROWBAND : st->bandwidth; 10402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (tocmode==0) 10412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tocmode = MODE_SILK_ONLY; 10422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_rate>100) 10432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tocmode = MODE_CELT_ONLY; 10442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_rate < 50) 10452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tocmode = MODE_SILK_ONLY; 10462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(tocmode==MODE_SILK_ONLY&&bw>OPUS_BANDWIDTH_WIDEBAND) 10472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bw=OPUS_BANDWIDTH_WIDEBAND; 10482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (tocmode==MODE_CELT_ONLY&&bw==OPUS_BANDWIDTH_MEDIUMBAND) 10492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bw=OPUS_BANDWIDTH_NARROWBAND; 10502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (bw<=OPUS_BANDWIDTH_SUPERWIDEBAND) 10512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bw=OPUS_BANDWIDTH_SUPERWIDEBAND; 10522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data[0] = gen_toc(tocmode, frame_rate, bw, st->stream_channels); 10532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 10542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return 1; 10552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 10562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->use_vbr) 10572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int cbrBytes; 10592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cbrBytes = IMIN( (st->bitrate_bps + 4*frame_rate)/(8*frame_rate) , max_data_bytes); 10602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bitrate_bps = cbrBytes * (8*frame_rate); 10612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian max_data_bytes = cbrBytes; 10622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 10632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian max_rate = frame_rate*max_data_bytes*8; 10642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Equivalent 20-ms rate for mode/channel/bandwidth decisions */ 10662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian equiv_rate = st->bitrate_bps - (40*st->channels+20)*(st->Fs/frame_size - 50); 10672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->signal_type == OPUS_SIGNAL_VOICE) 10692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = 127; 10702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (st->signal_type == OPUS_SIGNAL_MUSIC) 10712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = 0; 10722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (st->voice_ratio >= 0) 10732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = st->voice_ratio*327>>8; 10752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* For AUDIO, never be more than 90% confident of having speech */ 10762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_AUDIO) 10772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = IMIN(voice_est, 115); 10782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->application == OPUS_APPLICATION_VOIP) 10792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = 115; 10802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 10812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_est = 48; 10822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 10832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->force_channels!=OPUS_AUTO && st->channels == 2) 10842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = st->force_channels; 10862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 10872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FUZZING 10882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Random mono/stereo decision */ 10892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->channels == 2 && (rand()&0x1F)==0) 10902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = 3-st->stream_channels; 10912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 10922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Rate-dependent mono-stereo decision */ 10932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->channels == 2) 10942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 10952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 stereo_threshold; 10962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_threshold = stereo_music_threshold + ((voice_est*voice_est*(stereo_voice_threshold-stereo_music_threshold))>>14); 10972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->stream_channels == 2) 10982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_threshold -= 1000; 10992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 11002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_threshold += 1000; 11012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = (equiv_rate > stereo_threshold) ? 2 : 1; 11022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 11032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = st->channels; 11042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 11062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian equiv_rate = st->bitrate_bps - (40*st->stream_channels+20)*(st->Fs/frame_size - 50); 11082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Mode selection depending on application and signal type */ 11102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 11112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->user_forced_mode == OPUS_AUTO) 11142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FUZZING 11162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Random mode switching */ 11172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ((rand()&0xF)==0) 11182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ((rand()&0x1)==0) 11202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 11222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_SILK_ONLY; 11232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 11242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->prev_mode==MODE_CELT_ONLY) 11252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 11272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_SILK_ONLY; 11282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 11302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 mode_voice, mode_music; 11312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 threshold; 11322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Interpolate based on stereo width */ 11342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mode_voice = (opus_int32)(MULT16_32_Q15(Q15ONE-stereo_width,mode_thresholds[0][0]) 11352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(stereo_width,mode_thresholds[1][0])); 11362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mode_music = (opus_int32)(MULT16_32_Q15(Q15ONE-stereo_width,mode_thresholds[1][1]) 11372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + MULT16_32_Q15(stereo_width,mode_thresholds[1][1])); 11382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Interpolate based on speech/music probability */ 11392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold = mode_music + ((voice_est*voice_est*(mode_voice-mode_music))>>14); 11402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Bias towards SILK for VoIP because of some useful features */ 11412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_VOIP) 11422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold += 8000; 11432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*printf("%f %d\n", stereo_width/(float)Q15ONE, threshold);*/ 11452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Hysteresis */ 11462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->prev_mode == MODE_CELT_ONLY) 11472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold -= 4000; 11482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (st->prev_mode>0) 11492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold += 4000; 11502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = (equiv_rate >= threshold) ? MODE_CELT_ONLY: MODE_SILK_ONLY; 11522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* When FEC is enabled and there's enough packet loss, use SILK */ 11542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.useInBandFEC && st->silk_mode.packetLossPercentage > (128-voice_est)>>4) 11552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_SILK_ONLY; 11562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* When encoding voice and DTX is enabled, set the encoder to SILK mode (at least for now) */ 11572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.useDTX && voice_est > 100) 11582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_SILK_ONLY; 11592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 11602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 11612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = st->user_forced_mode; 11622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Override the chosen mode to make sure we meet the requested frame size */ 11652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY && frame_size < st->Fs/100) 11662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->lfe) 11682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* If max_data_bytes represents less than 8 kb/s, switch to CELT-only mode */ 11702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (max_data_bytes < (frame_rate > 50 ? 12000 : 8000)*frame_size / (st->Fs * 8)) 11712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_CELT_ONLY; 11722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->stream_channels == 1 && st->prev_channels ==2 && st->silk_mode.toMono==0 11742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian && st->mode != MODE_CELT_ONLY && st->prev_mode != MODE_CELT_ONLY) 11752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Delay stereo->mono transition by two frames so that SILK can do a smooth downmix */ 11772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.toMono = 1; 11782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = 2; 11792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 11802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.toMono = 0; 11812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 11832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->prev_mode > 0 && 11842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ((st->mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY) || 11852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian (st->mode == MODE_CELT_ONLY && st->prev_mode != MODE_CELT_ONLY))) 11862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy = 1; 11882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_to_silk = (st->mode != MODE_CELT_ONLY); 11892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!celt_to_silk) 11902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Switch to SILK/hybrid if frame size is 10 ms or more*/ 11922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_size >= st->Fs/100) 11932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 11942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = st->prev_mode; 11952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian to_celt = 1; 11962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 11972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy=0; 11982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 11992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* For the first frame at a new SILK bandwidth */ 12022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_bw_switch) 12032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy = 1; 12052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_to_silk = 1; 12062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_bw_switch = 0; 12072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian prefill=1; 12082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy) 12112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Fair share of the max size allowed */ 12132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy_bytes = IMIN(257, max_data_bytes*(opus_int32)(st->Fs/200)/(frame_size+st->Fs/200)); 12142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* For VBR, target the actual bitrate (subject to the limit above) */ 12152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->use_vbr) 12162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy_bytes = IMIN(redundancy_bytes, st->bitrate_bps/1600); 12172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY) 12202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_EncControlStruct dummy; 12222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_InitEncoder( silk_enc, st->arch, &dummy); 12232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian prefill=1; 12242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Automatic (rate-dependent) bandwidth selection */ 12272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_CELT_ONLY || st->first || st->silk_mode.allowBandwidthSwitch) 12282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int32 *voice_bandwidth_thresholds, *music_bandwidth_thresholds; 12302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 bandwidth_thresholds[8]; 12312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bandwidth = OPUS_BANDWIDTH_FULLBAND; 12322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 equiv_rate2; 12332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian equiv_rate2 = equiv_rate; 12352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY) 12362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Adjust the threshold +/- 10% depending on complexity */ 12382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian equiv_rate2 = equiv_rate2 * (45+st->silk_mode.complexity)/50; 12392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* CBR is less efficient by ~1 kb/s */ 12402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->use_vbr) 12412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian equiv_rate2 -= 1000; 12422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->channels==2 && st->force_channels!=1) 12442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_bandwidth_thresholds = stereo_voice_bandwidth_thresholds; 12462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian music_bandwidth_thresholds = stereo_music_bandwidth_thresholds; 12472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 12482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian voice_bandwidth_thresholds = mono_voice_bandwidth_thresholds; 12492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian music_bandwidth_thresholds = mono_music_bandwidth_thresholds; 12502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Interpolate bandwidth thresholds depending on voice estimation */ 12522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<8;i++) 12532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bandwidth_thresholds[i] = music_bandwidth_thresholds[i] 12552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian + ((voice_est*voice_est*(voice_bandwidth_thresholds[i]-music_bandwidth_thresholds[i]))>>14); 12562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian do { 12582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int threshold, hysteresis; 12592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold = bandwidth_thresholds[2*(bandwidth-OPUS_BANDWIDTH_MEDIUMBAND)]; 12602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hysteresis = bandwidth_thresholds[2*(bandwidth-OPUS_BANDWIDTH_MEDIUMBAND)+1]; 12612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->first) 12622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->bandwidth >= bandwidth) 12642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold -= hysteresis; 12652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 12662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian threshold += hysteresis; 12672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (equiv_rate2 >= threshold) 12692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 12702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } while (--bandwidth>OPUS_BANDWIDTH_NARROWBAND); 12712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = bandwidth; 12722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Prevents any transition to SWB/FB until the SILK layer has fully 12732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian switched to WB mode and turned the variable LP filter off */ 12742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->first && st->mode != MODE_CELT_ONLY && !st->silk_mode.inWBmodeWithoutVariableLP && st->bandwidth > OPUS_BANDWIDTH_WIDEBAND) 12752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_WIDEBAND; 12762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->bandwidth>st->max_bandwidth) 12792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = st->max_bandwidth; 12802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->user_bandwidth != OPUS_AUTO) 12822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = st->user_bandwidth; 12832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* This prevents us from using hybrid at unsafe CBR/max rates */ 12852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY && max_rate < 15000) 12862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 12872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = IMIN(st->bandwidth, OPUS_BANDWIDTH_WIDEBAND); 12882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 12892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 12902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Prevents Opus from wasting bits on frequencies that are above 12912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian the Nyquist rate of the input signal */ 12922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->Fs <= 24000 && st->bandwidth > OPUS_BANDWIDTH_SUPERWIDEBAND) 12932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_SUPERWIDEBAND; 12942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->Fs <= 16000 && st->bandwidth > OPUS_BANDWIDTH_WIDEBAND) 12952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_WIDEBAND; 12962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->Fs <= 12000 && st->bandwidth > OPUS_BANDWIDTH_MEDIUMBAND) 12972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_MEDIUMBAND; 12982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->Fs <= 8000 && st->bandwidth > OPUS_BANDWIDTH_NARROWBAND) 12992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_NARROWBAND; 13002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 13012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Use detected bandwidth to reduce the encoded bandwidth. */ 13022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->detected_bandwidth && st->user_bandwidth == OPUS_AUTO) 13032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int min_detected_bandwidth; 13052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Makes bandwidth detection more conservative just in case the detector 13062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian gets it wrong when we could have coded a high bandwidth transparently. 13072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian When operating in SILK/hybrid mode, we don't go below wideband to avoid 13082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian more complicated switches that require redundancy. */ 13092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (equiv_rate <= 18000*st->stream_channels && st->mode == MODE_CELT_ONLY) 13102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_detected_bandwidth = OPUS_BANDWIDTH_NARROWBAND; 13112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (equiv_rate <= 24000*st->stream_channels && st->mode == MODE_CELT_ONLY) 13122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_detected_bandwidth = OPUS_BANDWIDTH_MEDIUMBAND; 13132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (equiv_rate <= 30000*st->stream_channels) 13142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_detected_bandwidth = OPUS_BANDWIDTH_WIDEBAND; 13152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (equiv_rate <= 44000*st->stream_channels) 13162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_detected_bandwidth = OPUS_BANDWIDTH_SUPERWIDEBAND; 13172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 13182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian min_detected_bandwidth = OPUS_BANDWIDTH_FULLBAND; 13192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->detected_bandwidth = IMAX(st->detected_bandwidth, min_detected_bandwidth); 13212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = IMIN(st->bandwidth, st->detected_bandwidth); 13222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 13232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 13242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_LSB_DEPTH(lsb_depth)); 13252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* CELT mode doesn't support mediumband, use wideband instead */ 13272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_CELT_ONLY && st->bandwidth == OPUS_BANDWIDTH_MEDIUMBAND) 13282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_WIDEBAND; 13292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->lfe) 13302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_NARROWBAND; 13312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Can't support higher than wideband for >20 ms frames */ 13332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_size > st->Fs/50 && (st->mode == MODE_CELT_ONLY || st->bandwidth > OPUS_BANDWIDTH_WIDEBAND)) 13342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(unsigned char, tmp_data); 13362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int nb_frames; 13372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bak_mode, bak_bandwidth, bak_channels, bak_to_mono; 13382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(OpusRepacketizer, rp); 13392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 bytes_per_frame; 13402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 repacketize_len; 13412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 13432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (analysis_read_pos_bak!= -1) 13442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->analysis.read_pos = analysis_read_pos_bak; 13462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->analysis.read_subframe = analysis_read_subframe_bak; 13472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 13482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 13492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_frames = frame_size > st->Fs/25 ? 3 : 2; 13512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bytes_per_frame = IMIN(1276,(out_data_bytes-3)/nb_frames); 13522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(tmp_data, nb_frames*bytes_per_frame, unsigned char); 13542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(rp, 1, OpusRepacketizer); 13562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_repacketizer_init(rp); 13572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bak_mode = st->user_forced_mode; 13592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bak_bandwidth = st->user_bandwidth; 13602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bak_channels = st->force_channels; 13612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_forced_mode = st->mode; 13632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bandwidth = st->bandwidth; 13642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->force_channels = st->stream_channels; 13652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bak_to_mono = st->silk_mode.toMono; 13662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 13672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (bak_to_mono) 13682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->force_channels = 1; 13692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 13702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_channels = st->stream_channels; 13712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<nb_frames;i++) 13722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tmp_len; 13742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.toMono = 0; 13752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* When switching from SILK/Hybrid to CELT, only ask for a switch at the last frame */ 13762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (to_celt && i==nb_frames-1) 13772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_forced_mode = MODE_CELT_ONLY; 13782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp_len = opus_encode_native(st, pcm+i*(st->channels*st->Fs/50), st->Fs/50, 13792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp_data+i*bytes_per_frame, bytes_per_frame, lsb_depth, 13802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian NULL, 0, c1, c2, analysis_channels, downmix); 13812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (tmp_len<0) 13822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 13842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 13852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 13862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = opus_repacketizer_cat(rp, tmp_data+i*bytes_per_frame, tmp_len); 13872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret<0) 13882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 13892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 13902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 13912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 13922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 13932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->use_vbr) 13942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian repacketize_len = out_data_bytes; 13952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 13962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian repacketize_len = IMIN(3*st->bitrate_bps/(3*8*50/nb_frames), out_data_bytes); 13972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = opus_repacketizer_out_range_impl(rp, 0, nb_frames, data, repacketize_len, 0, !st->use_vbr); 13982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret<0) 13992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 14002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 14012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 14022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_forced_mode = bak_mode; 14042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bandwidth = bak_bandwidth; 14052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->force_channels = bak_channels; 14062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.toMono = bak_to_mono; 14072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 14082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 14092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian curr_bandwidth = st->bandwidth; 14112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Chooses the appropriate mode for speech 14132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *NEVER* switch to/from CELT-only mode here as this will invalidate some assumptions */ 14142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_SILK_ONLY && curr_bandwidth > OPUS_BANDWIDTH_WIDEBAND) 14152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_HYBRID; 14162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID && curr_bandwidth <= OPUS_BANDWIDTH_WIDEBAND) 14172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_SILK_ONLY; 14182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* printf("%d %d %d %d\n", st->bitrate_bps, st->stream_channels, st->mode, curr_bandwidth); */ 14202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bytes_target = IMIN(max_data_bytes-redundancy_bytes, st->bitrate_bps * frame_size / (st->Fs * 8)) - 1; 14212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data += 1; 14232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_init(&enc, data, max_data_bytes-1); 14252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(pcm_buf, (total_buffer+frame_size)*st->channels, opus_val16); 14272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<total_buffer*st->channels;i++) 14282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm_buf[i] = st->delay_buffer[(st->encoder_buffer-total_buffer)*st->channels+i]; 14292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_CELT_ONLY) 14312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_freq_smth1 = silk_LSHIFT( silk_lin2log( VARIABLE_HP_MIN_CUTOFF_HZ ), 8 ); 14322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 14332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_freq_smth1 = ((silk_encoder*)silk_enc)->state_Fxx[0].sCmn.variable_HP_smth1_Q15; 14342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_HP_smth2_Q15 = silk_SMLAWB( st->variable_HP_smth2_Q15, 14362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_freq_smth1 - st->variable_HP_smth2_Q15, SILK_FIX_CONST( VARIABLE_HP_SMTH_COEF2, 16 ) ); 14372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* convert from log scale to Hertz */ 14392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian cutoff_Hz = silk_log2lin( silk_RSHIFT( st->variable_HP_smth2_Q15, 8 ) ); 14402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_VOIP) 14422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 14432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian hp_cutoff(pcm, cutoff_Hz, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs); 14442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 14452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian dc_reject(pcm, 3, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs); 14462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* SILK processing */ 14512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian HB_gain = Q15ONE; 14522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY) 14532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 14542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 total_bitRate, celt_rate; 14552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 14562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const opus_int16 *pcm_silk; 14572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 14582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(opus_int16, pcm_silk); 14592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(pcm_silk, st->channels*frame_size, opus_int16); 14602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 14612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Distribute bits between SILK and CELT */ 14632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian total_bitRate = 8 * bytes_target * frame_rate; 14642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->mode == MODE_HYBRID ) { 14652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int HB_gain_ref; 14662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Base rate for SILK */ 14672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate = st->stream_channels * ( 5000 + 1000 * ( st->Fs == 100 * frame_size ) ); 14682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( curr_bandwidth == OPUS_BANDWIDTH_SUPERWIDEBAND ) { 14692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* SILK gets 2/3 of the remaining bits */ 14702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate += ( total_bitRate - st->silk_mode.bitRate ) * 2 / 3; 14712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { /* FULLBAND */ 14722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* SILK gets 3/5 of the remaining bits */ 14732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate += ( total_bitRate - st->silk_mode.bitRate ) * 3 / 5; 14742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Don't let SILK use more than 80% */ 14762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->silk_mode.bitRate > total_bitRate * 4/5 ) { 14772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate = total_bitRate * 4/5; 14782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->energy_masking) 14802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 14812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Increasingly attenuate high band when it gets allocated fewer bits */ 14822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_rate = total_bitRate - st->silk_mode.bitRate; 14832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian HB_gain_ref = (curr_bandwidth == OPUS_BANDWIDTH_SUPERWIDEBAND) ? 3000 : 3600; 14842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian HB_gain = SHL32((opus_val32)celt_rate, 9) / SHR32((opus_val32)celt_rate + st->stream_channels * HB_gain_ref, 6); 14852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian HB_gain = HB_gain < Q15ONE*6/7 ? HB_gain + Q15ONE/7 : Q15ONE; 14862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 14882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* SILK gets all bits */ 14892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate = total_bitRate; 14902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 14912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 14922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Surround masking for SILK */ 14932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->energy_masking && st->use_vbr && !st->lfe) 14942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 14952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 mask_sum=0; 14962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 masking_depth; 14972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 rate_offset; 14982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int c; 14992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int end = 17; 15002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int16 srate = 16000; 15012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->bandwidth == OPUS_BANDWIDTH_NARROWBAND) 15022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian end = 13; 15042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian srate = 8000; 15052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->bandwidth == OPUS_BANDWIDTH_MEDIUMBAND) 15062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian end = 15; 15082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian srate = 12000; 15092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (c=0;c<st->channels;c++) 15112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for(i=0;i<end;i++) 15132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 mask; 15152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mask = MAX16(MIN16(st->energy_masking[21*c+i], 15162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian QCONST16(.5f, DB_SHIFT)), -QCONST16(2.0f, DB_SHIFT)); 15172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (mask > 0) 15182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mask = HALF16(mask); 15192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian mask_sum += mask; 15202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Conservative rate reduction, we cut the masking in half */ 15232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian masking_depth = mask_sum / end*st->channels; 15242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian masking_depth += QCONST16(.2f, DB_SHIFT); 15252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian rate_offset = (opus_int32)PSHR32(MULT16_16(srate, masking_depth), DB_SHIFT); 15262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian rate_offset = MAX32(rate_offset, -2*st->silk_mode.bitRate/3); 15272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Split the rate change between the SILK and CELT part for hybrid. */ 15282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->bandwidth==OPUS_BANDWIDTH_SUPERWIDEBAND || st->bandwidth==OPUS_BANDWIDTH_FULLBAND) 15292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate += 3*rate_offset/5; 15302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 15312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate += rate_offset; 15322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bytes_target += rate_offset * frame_size / (8 * st->Fs); 15332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.payloadSize_ms = 1000 * frame_size / st->Fs; 15362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.nChannelsAPI = st->channels; 15372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.nChannelsInternal = st->stream_channels; 15382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (curr_bandwidth == OPUS_BANDWIDTH_NARROWBAND) { 15392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = 8000; 15402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (curr_bandwidth == OPUS_BANDWIDTH_MEDIUMBAND) { 15412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = 12000; 15422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 15432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_assert( st->mode == MODE_HYBRID || curr_bandwidth == OPUS_BANDWIDTH_WIDEBAND ); 15442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = 16000; 15452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->mode == MODE_HYBRID ) { 15472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Don't allow bandwidth reduction at lowest bitrates in hybrid mode */ 15482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.minInternalSampleRate = 16000; 15492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 15502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.minInternalSampleRate = 8000; 15512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_SILK_ONLY) 15542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 effective_max_rate = max_rate; 15562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 16000; 15572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (frame_rate > 50) 15582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian effective_max_rate = effective_max_rate*2/3; 15592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (effective_max_rate < 13000) 15602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 12000; 15622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = IMIN(12000, st->silk_mode.desiredInternalSampleRate); 15632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (effective_max_rate < 9600) 15652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 8000; 15672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.desiredInternalSampleRate = IMIN(8000, st->silk_mode.desiredInternalSampleRate); 15682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 15702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 16000; 15712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useCBR = !st->use_vbr; 15742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Call SILK encoder for the low band */ 15762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nBytes = IMIN(1275, max_data_bytes-1-redundancy_bytes); 15772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxBits = nBytes*8; 15792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Only allow up to 90% of the bits for hybrid mode*/ 15802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID) 15812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxBits = (opus_int32)st->silk_mode.maxBits*9/10; 15822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.useCBR) 15832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxBits = (st->silk_mode.bitRate * frame_size / (st->Fs * 8))*8; 15852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Reduce the initial target to make it easier to reach the CBR rate */ 15862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.bitRate = IMAX(1, st->silk_mode.bitRate-2000); 15872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 15882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 15892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (prefill) 15902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 15912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 zero=0; 15922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int prefill_offset; 15932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Use a smooth onset for the SILK prefill to avoid the encoder trying to encode 15942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian a discontinuity. The exact location is what we need to avoid leaving any "gap" 15952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian in the audio when mixing with the redundant CELT frame. Here we can afford to 15962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian overwrite st->delay_buffer because the only thing that uses it before it gets 15972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian rewritten is tmp_prefill[] and even then only the part after the ramp really 15982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian gets used (rather than sent to the encoder and discarded) */ 15992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian prefill_offset = st->channels*(st->encoder_buffer-st->delay_compensation-st->Fs/400); 16002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian gain_fade(st->delay_buffer+prefill_offset, st->delay_buffer+prefill_offset, 16012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 0, Q15ONE, celt_mode->overlap, st->Fs/400, st->channels, celt_mode->window, st->Fs); 16022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for(i=0;i<prefill_offset;i++) 16032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->delay_buffer[i]=0; 16042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 16052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm_silk = st->delay_buffer; 16062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 16072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<st->encoder_buffer*st->channels;i++) 16082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm_silk[i] = FLOAT2INT16(st->delay_buffer[i]); 16092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 16102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_Encode( silk_enc, &st->silk_mode, pcm_silk, st->encoder_buffer, NULL, &zero, 1 ); 16112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 16142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm_silk = pcm_buf+total_buffer*st->channels; 16152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 16162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<frame_size*st->channels;i++) 16172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm_silk[i] = FLOAT2INT16(pcm_buf[total_buffer*st->channels + i]); 16182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 16192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = silk_Encode( silk_enc, &st->silk_mode, pcm_silk, frame_size, &enc, &nBytes, 0 ); 16202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( ret ) { 16212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*fprintf (stderr, "SILK encode error: %d\n", ret);*/ 16222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Handle error */ 16232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 16242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 16252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (nBytes==0) 16272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->rangeFinal = 0; 16292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data[-1] = gen_toc(st->mode, st->Fs/frame_size, curr_bandwidth, st->stream_channels); 16302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 16312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return 1; 16322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Extract SILK internal bandwidth for signaling in first byte */ 16342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->mode == MODE_SILK_ONLY ) { 16352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->silk_mode.internalSampleRate == 8000 ) { 16362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian curr_bandwidth = OPUS_BANDWIDTH_NARROWBAND; 16372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if( st->silk_mode.internalSampleRate == 12000 ) { 16382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian curr_bandwidth = OPUS_BANDWIDTH_MEDIUMBAND; 16392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if( st->silk_mode.internalSampleRate == 16000 ) { 16402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian curr_bandwidth = OPUS_BANDWIDTH_WIDEBAND; 16412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 16432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_assert( st->silk_mode.internalSampleRate == 16000 ); 16442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.opusCanSwitch = st->silk_mode.switchReady; 16472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* FIXME: How do we allocate the redundancy for CBR? */ 16482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.opusCanSwitch) 16492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy = 1; 16512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_to_silk = 0; 16522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_bw_switch = 1; 16532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* CELT processing */ 16572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int endband=21; 16592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian switch(curr_bandwidth) 16612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_BANDWIDTH_NARROWBAND: 16632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian endband = 13; 16642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 16652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_BANDWIDTH_MEDIUMBAND: 16662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_BANDWIDTH_WIDEBAND: 16672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian endband = 17; 16682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 16692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_BANDWIDTH_SUPERWIDEBAND: 16702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian endband = 19; 16712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 16722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_BANDWIDTH_FULLBAND: 16732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian endband = 21; 16742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 16752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_END_BAND(endband)); 16772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_CHANNELS(st->stream_channels)); 16782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 16792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_BITRATE(OPUS_BITRATE_MAX)); 16802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_SILK_ONLY) 16812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val32 celt_pred=2; 16832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_VBR(0)); 16842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* We may still decide to disable prediction later */ 16852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->silk_mode.reducedDependency) 16862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_pred = 0; 16872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_PREDICTION(celt_pred)); 16882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID) 16902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 16912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int len; 16922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 16932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian len = (ec_tell(&enc)+7)>>3; 16942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy) 16952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian len += st->mode == MODE_HYBRID ? 3 : 1; 16962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->use_vbr ) { 16972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = len + bytes_target - (st->silk_mode.bitRate * frame_size) / (8 * st->Fs); 16982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 16992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* check if SILK used up too much */ 17002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = len > bytes_target ? len : bytes_target; 17012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 17032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->use_vbr) 17042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 bonus=0; 17062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 17072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->variable_duration==OPUS_FRAMESIZE_VARIABLE && frame_size != st->Fs/50) 17082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bonus = (60*st->stream_channels+40)*(st->Fs/frame_size-50); 17102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (analysis_info.valid) 17112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian bonus = (opus_int32)(bonus*(1.f+.5f*analysis_info.tonality)); 17122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 17142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_VBR(1)); 17152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_VBR_CONSTRAINT(st->vbr_constraint)); 17162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_BITRATE(st->bitrate_bps+bonus)); 17172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = max_data_bytes-1-redundancy_bytes; 17182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 17192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = bytes_target; 17202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 17242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = 0; 17252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(tmp_prefill, st->channels*st->Fs/400, opus_val16); 17282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_SILK_ONLY && st->mode != st->prev_mode && st->prev_mode > 0) 17292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<st->channels*st->Fs/400;i++) 17312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian tmp_prefill[i] = st->delay_buffer[(st->encoder_buffer-total_buffer-st->Fs/400)*st->channels + i]; 17322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<st->channels*(st->encoder_buffer-(frame_size+total_buffer));i++) 17352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->delay_buffer[i] = st->delay_buffer[i+st->channels*frame_size]; 17362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (;i<st->encoder_buffer*st->channels;i++) 17372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->delay_buffer[i] = pcm_buf[(frame_size+total_buffer-st->encoder_buffer)*st->channels+i]; 17382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* gain_fade() and stereo_fade() need to be after the buffer copying 17402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian because we don't want any of this to affect the SILK part */ 17412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->prev_HB_gain < Q15ONE || HB_gain < Q15ONE ) { 17422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian gain_fade(pcm_buf, pcm_buf, 17432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_HB_gain, HB_gain, celt_mode->overlap, frame_size, st->channels, celt_mode->window, st->Fs); 17442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_HB_gain = HB_gain; 17462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_HYBRID || st->stream_channels==1) 17472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.stereoWidth_Q14 = IMIN((1<<14),2*IMAX(0,equiv_rate-30000)); 17482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( !st->energy_masking && st->channels == 2 ) { 17492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Apply stereo width reduction (at low bitrates) */ 17502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if( st->hybrid_stereo_width_Q14 < (1 << 14) || st->silk_mode.stereoWidth_Q14 < (1 << 14) ) { 17512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 g1, g2; 17522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g1 = st->hybrid_stereo_width_Q14; 17532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g2 = (opus_val16)(st->silk_mode.stereoWidth_Q14); 17542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 17552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g1 = g1==16384 ? Q15ONE : SHL16(g1,1); 17562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g2 = g2==16384 ? Q15ONE : SHL16(g2,1); 17572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 17582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g1 *= (1.f/16384); 17592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian g2 *= (1.f/16384); 17602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 17612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian stereo_fade(pcm_buf, pcm_buf, g1, g2, celt_mode->overlap, 17622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size, st->channels, celt_mode->window, st->Fs); 17632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->hybrid_stereo_width_Q14 = st->silk_mode.stereoWidth_Q14; 17642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ( st->mode != MODE_CELT_ONLY && ec_tell(&enc)+17+20*(st->mode == MODE_HYBRID) <= 8*(max_data_bytes-1)) 17682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* For SILK mode, the redundancy is inferred from the length */ 17702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID && (redundancy || ec_tell(&enc)+37 <= 8*nb_compr_bytes)) 17712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_bit_logp(&enc, redundancy, 12); 17722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy) 17732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int max_redundancy; 17752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_bit_logp(&enc, celt_to_silk, 1); 17762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID) 17772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian max_redundancy = (max_data_bytes-1)-nb_compr_bytes; 17782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 17792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian max_redundancy = (max_data_bytes-1)-((ec_tell(&enc)+7)>>3); 17802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Target the same bit-rate for redundancy as for the rest, 17812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian up to a max of 257 bytes */ 17822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy_bytes = IMIN(max_redundancy, st->bitrate_bps/1600); 17832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy_bytes = IMIN(257, IMAX(2, redundancy_bytes)); 17842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_HYBRID) 17852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_uint(&enc, redundancy_bytes-2, 256); 17862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 17882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy = 0; 17892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!redundancy) 17922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 17932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_bw_switch = 0; 17942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian redundancy_bytes = 0; 17952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 17962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_CELT_ONLY)start_band=17; 17972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 17982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode == MODE_SILK_ONLY) 17992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = (ec_tell(&enc)+7)>>3; 18012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_done(&enc); 18022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = ret; 18032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 18042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian nb_compr_bytes = IMIN((max_data_bytes-1)-redundancy_bytes, nb_compr_bytes); 18052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ec_enc_shrink(&enc, nb_compr_bytes); 18062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 18092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy || st->mode != MODE_SILK_ONLY) 18102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_ANALYSIS(&analysis_info)); 18112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 18122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* 5 ms redundant frame for CELT->SILK */ 18142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy && celt_to_silk) 18152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int err; 18172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_START_BAND(0)); 18182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_VBR(0)); 18192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian err = celt_encode_with_ec(celt_enc, pcm_buf, st->Fs/200, data+nb_compr_bytes, redundancy_bytes, NULL); 18202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (err < 0) 18212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 18232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 18242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_GET_FINAL_RANGE(&redundant_rng)); 18262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_RESET_STATE); 18272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_START_BAND(start_band)); 18302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != MODE_SILK_ONLY) 18322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->mode != st->prev_mode && st->prev_mode > 0) 18342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char dummy[2]; 18362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_RESET_STATE); 18372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Prefilling */ 18392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encode_with_ec(celt_enc, tmp_prefill, st->Fs/400, dummy, 2, NULL); 18402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_PREDICTION(0)); 18412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* If false, we already busted the budget and we'll end up with a "PLC packet" */ 18432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ec_tell(&enc) <= 8*nb_compr_bytes) 18442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = celt_encode_with_ec(celt_enc, pcm_buf, frame_size, NULL, nb_compr_bytes, &enc); 18462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ret < 0) 18472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 18492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 18502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* 5 ms redundant frame for SILK->CELT */ 18552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (redundancy && !celt_to_silk) 18562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int err; 18582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char dummy[2]; 18592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int N2, N4; 18602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian N2 = st->Fs/200; 18612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian N4 = st->Fs/400; 18622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_RESET_STATE); 18642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_START_BAND(0)); 18652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, CELT_SET_PREDICTION(0)); 18662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* NOTE: We could speed this up slightly (at the expense of code size) by just adding a function that prefills the buffer */ 18682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encode_with_ec(celt_enc, pcm_buf+st->channels*(frame_size-N2-N4), N4, dummy, 2, NULL); 18692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian err = celt_encode_with_ec(celt_enc, pcm_buf+st->channels*(frame_size-N2), N2, data+nb_compr_bytes, redundancy_bytes, NULL); 18712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (err < 0) 18722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 18732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 18742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 18752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_GET_FINAL_RANGE(&redundant_rng)); 18772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 18782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Signalling the mode in the first byte */ 18822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data--; 18832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data[0] = gen_toc(st->mode, st->Fs/frame_size, curr_bandwidth, st->stream_channels); 18842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->rangeFinal = enc.rng ^ redundant_rng; 18862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (to_celt) 18882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_mode = MODE_CELT_ONLY; 18892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 18902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_mode = st->mode; 18912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_channels = st->stream_channels; 18922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_framesize = frame_size; 18932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->first = 0; 18952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 18962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* In the unlikely case that the SILK encoder busted its target, tell 18972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian the decoder to call the PLC */ 18982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (ec_tell(&enc) > (max_data_bytes-1)*8) 18992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 19002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (max_data_bytes < 2) 19012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 19022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 19032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_BUFFER_TOO_SMALL; 19042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 19052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian data[1] = 0; 19062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = 1; 19072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->rangeFinal = 0; 19082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->mode==MODE_SILK_ONLY&&!redundancy) 19092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 19102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /*When in LPC only mode it's perfectly 19112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian reasonable to strip off trailing zero bytes as 19122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian the required range decoder behavior is to 19132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian fill these in. This can't be done when the MDCT 19142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian modes are used because the decoder needs to know 19152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian the actual length for allocation purposes.*/ 19162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while(ret>2&&data[ret]==0)ret--; 19172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 19182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* Count ToC and redundancy */ 19192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret += 1+redundancy_bytes; 19202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!st->use_vbr) 19212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 19222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (opus_packet_pad(data, ret, max_data_bytes) != OPUS_OK) 19232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 19252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 19262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_INTERNAL_ERROR; 19272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 19282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = max_data_bytes; 19292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 19302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 19312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 19322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 19332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 19352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 19372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 opus_encode_float(OpusEncoder *st, const float *pcm, int analysis_frame_size, 19382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char *data, opus_int32 max_data_bytes) 19392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 19402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i, ret; 19412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_size; 19422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 19432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(opus_int16, in); 19442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC_STACK; 19452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 19472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = 0; 19482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 19492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = st->delay_compensation; 19502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = compute_frame_size(pcm, analysis_frame_size, 19512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration, st->channels, st->Fs, st->bitrate_bps, 19522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation, downmix_float, st->analysis.subframe_mem); 19532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(in, frame_size*st->channels, opus_int16); 19552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<frame_size*st->channels;i++) 19572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian in[i] = FLOAT2INT16(pcm[i]); 19582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = opus_encode_native(st, in, frame_size, data, max_data_bytes, 16, pcm, analysis_frame_size, 0, -2, st->channels, downmix_float); 19592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 19602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 19612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 19622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 19632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 opus_encode(OpusEncoder *st, const opus_int16 *pcm, int analysis_frame_size, 19652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char *data, opus_int32 out_data_bytes) 19662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 19672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_size; 19682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 19692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 19702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = 0; 19712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 19722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = st->delay_compensation; 19732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = compute_frame_size(pcm, analysis_frame_size, 19742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration, st->channels, st->Fs, st->bitrate_bps, 19752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation, downmix_int 19762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef DISABLE_FLOAT_API 19772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian , st->analysis.subframe_mem 19782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 19792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ); 19802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return opus_encode_native(st, pcm, frame_size, data, out_data_bytes, 16, pcm, analysis_frame_size, 0, -2, st->channels, downmix_int); 19812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 19822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#else 19842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 opus_encode(OpusEncoder *st, const opus_int16 *pcm, int analysis_frame_size, 19852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char *data, opus_int32 max_data_bytes) 19862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 19872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int i, ret; 19882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_size; 19892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 19902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian VARDECL(float, in); 19912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC_STACK; 19922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 19932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 19942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = 0; 19952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 19962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = st->delay_compensation; 19972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = compute_frame_size(pcm, analysis_frame_size, 19982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration, st->channels, st->Fs, st->bitrate_bps, 19992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation, downmix_int, st->analysis.subframe_mem); 20002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ALLOC(in, frame_size*st->channels, float); 20022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian for (i=0;i<frame_size*st->channels;i++) 20042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian in[i] = (1.0f/32768)*pcm[i]; 20052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = opus_encode_native(st, in, frame_size, data, max_data_bytes, 16, pcm, analysis_frame_size, 0, -2, st->channels, downmix_int); 20062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian RESTORE_STACK; 20072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 20082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 20092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianopus_int32 opus_encode_float(OpusEncoder *st, const float *pcm, int analysis_frame_size, 20102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian unsigned char *data, opus_int32 out_data_bytes) 20112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 20122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int frame_size; 20132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int delay_compensation; 20142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application == OPUS_APPLICATION_RESTRICTED_LOWDELAY) 20152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = 0; 20162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else 20172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation = st->delay_compensation; 20182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian frame_size = compute_frame_size(pcm, analysis_frame_size, 20192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration, st->channels, st->Fs, st->bitrate_bps, 20202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian delay_compensation, downmix_float, st->analysis.subframe_mem); 20212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return opus_encode_native(st, pcm, frame_size, data, out_data_bytes, 24, 20222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian pcm, analysis_frame_size, 0, -2, st->channels, downmix_float); 20232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 20242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 20252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianint opus_encoder_ctl(OpusEncoder *st, int request, ...) 20282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 20292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int ret; 20302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian CELTEncoder *celt_enc; 20312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian va_list ap; 20322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = OPUS_OK; 20342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian va_start(ap, request); 20352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_enc = (CELTEncoder*)((char*)st+st->celt_enc_offset); 20372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 20382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian switch (request) 20392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_APPLICATION_REQUEST: 20412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 20432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ( (value != OPUS_APPLICATION_VOIP && value != OPUS_APPLICATION_AUDIO 20442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian && value != OPUS_APPLICATION_RESTRICTED_LOWDELAY) 20452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian || (!st->first && st->application != value)) 20462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = OPUS_BAD_ARG; 20482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->application = value; 20512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_APPLICATION_REQUEST: 20542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 20562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 20572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 20592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->application; 20612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_BITRATE_REQUEST: 20642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 20662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value != OPUS_AUTO && value != OPUS_BITRATE_MAX) 20672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value <= 0) 20692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 20702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (value <= 500) 20712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian value = 500; 20722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian else if (value > (opus_int32)300000*st->channels) 20732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian value = (opus_int32)300000*st->channels; 20742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bitrate_bps = value; 20762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_BITRATE_REQUEST: 20792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 20812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 20822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 20842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = user_bitrate_to_bitrate(st, st->prev_framesize, 1276); 20862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_FORCE_CHANNELS_REQUEST: 20892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 20912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if((value<1 || value>st->channels) && value != OPUS_AUTO) 20922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 20932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 20942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->force_channels = value; 20962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 20972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 20982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_FORCE_CHANNELS_REQUEST: 20992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 21012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 21022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->force_channels; 21062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_MAX_BANDWIDTH_REQUEST: 21092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 21112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value < OPUS_BANDWIDTH_NARROWBAND || value > OPUS_BANDWIDTH_FULLBAND) 21122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->max_bandwidth = value; 21162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->max_bandwidth == OPUS_BANDWIDTH_NARROWBAND) { 21172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 8000; 21182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->max_bandwidth == OPUS_BANDWIDTH_MEDIUMBAND) { 21192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 12000; 21202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 21212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 16000; 21222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_MAX_BANDWIDTH_REQUEST: 21262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 21282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 21292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->max_bandwidth; 21332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_BANDWIDTH_REQUEST: 21362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 21382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ((value < OPUS_BANDWIDTH_NARROWBAND || value > OPUS_BANDWIDTH_FULLBAND) && value != OPUS_AUTO) 21392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_bandwidth = value; 21432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->user_bandwidth == OPUS_BANDWIDTH_NARROWBAND) { 21442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 8000; 21452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else if (st->user_bandwidth == OPUS_BANDWIDTH_MEDIUMBAND) { 21462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 12000; 21472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } else { 21482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.maxInternalSampleRate = 16000; 21492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_BANDWIDTH_REQUEST: 21532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 21552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 21562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->bandwidth; 21602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_DTX_REQUEST: 21632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 21652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value<0 || value>1) 21662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useDTX = value; 21702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_DTX_REQUEST: 21732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 21752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 21762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->silk_mode.useDTX; 21802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_COMPLEXITY_REQUEST: 21832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 21852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value<0 || value>10) 21862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.complexity = value; 21902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_COMPLEXITY(value)); 21912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 21922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 21932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_COMPLEXITY_REQUEST: 21942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 21962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 21972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 21982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 21992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->silk_mode.complexity; 22012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_INBAND_FEC_REQUEST: 22042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 22062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value<0 || value>1) 22072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useInBandFEC = value; 22112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_INBAND_FEC_REQUEST: 22142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 22162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 22172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->silk_mode.useInBandFEC; 22212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_PACKET_LOSS_PERC_REQUEST: 22242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 22262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value < 0 || value > 100) 22272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.packetLossPercentage = value; 22312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_PACKET_LOSS_PERC(value)); 22322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_PACKET_LOSS_PERC_REQUEST: 22352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 22372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 22382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->silk_mode.packetLossPercentage; 22422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_VBR_REQUEST: 22452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 22472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value<0 || value>1) 22482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->use_vbr = value; 22522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.useCBR = 1-value; 22532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_VBR_REQUEST: 22562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 22582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 22592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->use_vbr; 22632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_VOICE_RATIO_REQUEST: 22662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 22682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value<-1 || value>100) 22692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->voice_ratio = value; 22732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_VOICE_RATIO_REQUEST: 22762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 22782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 22792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->voice_ratio; 22832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_VBR_CONSTRAINT_REQUEST: 22862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 22882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value<0 || value>1) 22892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 22912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->vbr_constraint = value; 22932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 22942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 22952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_VBR_CONSTRAINT_REQUEST: 22962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 22972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 22982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 22992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->vbr_constraint; 23032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_SIGNAL_REQUEST: 23062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 23082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if(value!=OPUS_AUTO && value!=OPUS_SIGNAL_VOICE && value!=OPUS_SIGNAL_MUSIC) 23092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->signal_type = value; 23132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_SIGNAL_REQUEST: 23162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 23182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->signal_type; 23232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_LOOKAHEAD_REQUEST: 23262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 23282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->Fs/400; 23332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (st->application != OPUS_APPLICATION_RESTRICTED_LOWDELAY) 23342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value += st->delay_compensation; 23352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_SAMPLE_RATE_REQUEST: 23382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 23402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->Fs; 23452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_FINAL_RANGE_REQUEST: 23482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_uint32 *value = va_arg(ap, opus_uint32*); 23502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->rangeFinal; 23552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_LSB_DEPTH_REQUEST: 23582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 23602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value<8 || value>24) 23612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->lsb_depth=value; 23652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_LSB_DEPTH_REQUEST: 23682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 23702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->lsb_depth; 23752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_EXPERT_FRAME_DURATION_REQUEST: 23782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 23802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value != OPUS_FRAMESIZE_ARG && value != OPUS_FRAMESIZE_2_5_MS && 23812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian value != OPUS_FRAMESIZE_5_MS && value != OPUS_FRAMESIZE_10_MS && 23822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian value != OPUS_FRAMESIZE_20_MS && value != OPUS_FRAMESIZE_40_MS && 23832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian value != OPUS_FRAMESIZE_60_MS && value != OPUS_FRAMESIZE_VARIABLE) 23842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_duration = value; 23882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_SET_EXPERT_FRAME_DURATION(value)); 23892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 23912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_EXPERT_FRAME_DURATION_REQUEST: 23922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 23942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 23952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 23962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 23972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 23982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->variable_duration; 23992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_PREDICTION_DISABLED_REQUEST: 24022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 24042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (value > 1 || value < 0) 24052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 24062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->silk_mode.reducedDependency = value; 24072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_GET_PREDICTION_DISABLED_REQUEST: 24102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 *value = va_arg(ap, opus_int32*); 24122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 24132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 24142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian *value = st->silk_mode.reducedDependency; 24152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_RESET_STATE: 24182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian void *silk_enc; 24202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_EncControlStruct dummy; 24212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_enc = (char*)st+st->silk_enc_offset; 24222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 24232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian OPUS_CLEAR((char*)&st->OPUS_ENCODER_RESET_START, 24242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian sizeof(OpusEncoder)- 24252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ((char*)&st->OPUS_ENCODER_RESET_START - (char*)st)); 24262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 24272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian celt_encoder_ctl(celt_enc, OPUS_RESET_STATE); 24282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian silk_InitEncoder( silk_enc, st->arch, &dummy ); 24292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->stream_channels = st->channels; 24302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->hybrid_stereo_width_Q14 = 1 << 14; 24312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->prev_HB_gain = Q15ONE; 24322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->first = 1; 24332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->mode = MODE_HYBRID; 24342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->bandwidth = OPUS_BANDWIDTH_FULLBAND; 24352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->variable_HP_smth2_Q15 = silk_LSHIFT( silk_lin2log( VARIABLE_HP_MIN_CUTOFF_HZ ), 8 ); 24362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_FORCE_MODE_REQUEST: 24392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 24412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if ((value < MODE_SILK_ONLY || value > MODE_CELT_ONLY) && value != OPUS_AUTO) 24422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 24442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->user_forced_mode = value; 24462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_LFE_REQUEST: 24492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_int32 value = va_arg(ap, opus_int32); 24512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->lfe = value; 24522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = celt_encoder_ctl(celt_enc, OPUS_SET_LFE(value)); 24532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case OPUS_SET_ENERGY_MASK_REQUEST: 24562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_val16 *value = va_arg(ap, opus_val16*); 24582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian st->energy_masking = value; 24592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = celt_encoder_ctl(celt_enc, OPUS_SET_ENERGY_MASK(value)); 24602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 24632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian case CELT_GET_MODE_REQUEST: 24642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian const CELTMode ** value = va_arg(ap, const CELTMode**); 24662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian if (!value) 24672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian { 24682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian goto bad_arg; 24692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = celt_encoder_ctl(celt_enc, CELT_GET_MODE(value)); 24712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian default: 24742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian /* fprintf(stderr, "unknown opus_encoder_ctl() request: %d", request);*/ 24752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ret = OPUS_UNIMPLEMENTED; 24762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian break; 24772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } 24782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian va_end(ap); 24792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return ret; 24802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianbad_arg: 24812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian va_end(ap); 24822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian return OPUS_BAD_ARG; 24832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 24842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 24852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanianvoid opus_encoder_destroy(OpusEncoder *st) 24862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian{ 24872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian opus_free(st); 24882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian} 2489