14f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* ------------------------------------------------------------------ 24f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Copyright (C) 1998-2009 PacketVideo 34f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 44f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 54f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * you may not use this file except in compliance with the License. 64f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * You may obtain a copy of the License at 74f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 84f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 94f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Unless required by applicable law or agreed to in writing, software 114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * express or implied. 144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * See the License for the specific language governing permissions 154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * and limitations under the License. 164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ------------------------------------------------------------------- 174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/**************************************************************************************** 194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPortions of this file are derived from the following 3GPP standard: 204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3GPP TS 26.173 224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec 234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Available from http://www.3gpp.org 244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPermission to distribute, modify and use this file under the standard license 274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberterms listed above has been obtained from the copyright holder. 284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber****************************************************************************************/ 294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Pathname: ./cpp/include/dtx.h 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 01/04/2007 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INCLUDE DESCRIPTION 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Static memory, constants and frametypes for the DTX 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifndef DTX_H 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_H 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; MACROS 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define module specific macros here 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; EXTERNAL VARIABLES REFERENCES 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; DEFINES AND SIMPLE TYPEDEF'S 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_MAX_EMPTY_THRESH 50 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_HIST_SIZE 8 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_HIST_SIZE_MIN_ONE 7 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_ELAPSED_FRAMES_THRESH (24 + 7 -1) 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_HANG_CONST 7 /* yields eight frames of SP HANGOVER */ 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define INV_MED_THRESH 14564 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ISF_GAP 128 /* 50 */ 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ONE_MINUS_ISF_GAP 16384 - ISF_GAP 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ISF_GAP 128 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ISF_DITH_GAP 448 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ISF_FACTOR_LOW 256 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ISF_FACTOR_STEP 2 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define GAIN_THR 180 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define GAIN_FACTOR 75 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber typedef struct 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_hist[M * DTX_HIST_SIZE]; 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 log_en_hist[DTX_HIST_SIZE]; 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 hist_ptr; 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 log_en_index; 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 cng_seed; 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* DTX handler stuff */ 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtxHangoverCount; 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 decAnaElapsedCount; 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 D[28]; 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 sumD[DTX_HIST_SIZE]; 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } dtx_encState; 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define SPEECH 0 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX 1 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define DTX_MUTE 2 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define TX_SPEECH 0 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define TX_SID_FIRST 1 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define TX_SID_UPDATE 2 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define TX_NO_DATA 3 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SPEECH_GOOD 0 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SPEECH_PROBABLY_DEGRADED 1 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SPEECH_LOST 2 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SPEECH_BAD 3 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SID_FIRST 4 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SID_UPDATE 5 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_SID_BAD 6 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define RX_NO_DATA 7 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /***************************************************************************** 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * DEFINITION OF DATA TYPES 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *****************************************************************************/ 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber typedef struct 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 since_last_sid; 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 true_sid_period_inv; 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 log_en; 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 old_log_en; 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 level; 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf[M]; 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_old[M]; 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 cng_seed; 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_hist[M * DTX_HIST_SIZE]; 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 log_en_hist[DTX_HIST_SIZE]; 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 hist_ptr; 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtxHangoverCount; 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 decAnaElapsedCount; 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 sid_frame; 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 valid_data; 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtxHangoverAdded; 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtxGlobalState; /* contains previous state */ 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* updated in main decoder */ 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 data_updated; /* marker to know if CNI data is ever renewed */ 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dither_seed; 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 CN_dith; 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } dtx_decState; 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_enc_init(dtx_encState ** st, int16 isf_init[]); 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_enc_reset(dtx_encState * st, int16 isf_init[]); 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void dtx_enc_exit(dtx_encState ** st); 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_enc( 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_encState * st, /* i/o : State struct */ 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf[M], /* o : CN ISF vector */ 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * exc2, /* o : CN excitation */ 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 ** prms 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_buffer( 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_encState * st, /* i/o : State struct */ 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_new[], /* i : isf vector */ 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 enr, /* i : residual energy (in L_FRAME) */ 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 codec_mode 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void tx_dtx_handler(dtx_encState * st, /* i/o : State struct */ 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 vad_flag, /* i : vad decision */ 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * usedMode /* i/o : mode changed or not */ 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void Qisf_ns( 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf1, /* input : ISF in the frequency domain (0..0.5) */ 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_q, /* output: quantized ISF */ 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * indice /* output: quantization indices */ 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_dec_amr_wb_reset(dtx_decState * st, const int16 isf_init[]); 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dtx_dec_amr_wb( 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_decState * st, /* i/o : State struct */ 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * exc2, /* o : CN excitation */ 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 new_state, /* i : New DTX state */ 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf[], /* o : CN ISF vector */ 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 ** prms 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void dtx_dec_amr_wb_activity_update( 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_decState * st, 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf[], 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 exc[]); 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 rx_amr_wb_dtx_handler( 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_decState * st, /* i/o : State struct */ 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 frame_type /* i : Frame type */ 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void Disf_ns( 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * indice, /* input: quantization indices */ 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_q /* input : ISF in the frequency domain (0..0.5) */ 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void aver_isf_history( 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_old[], 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 indices[], 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 isf_aver[] 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void find_frame_indices( 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf_old_tx[], 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 indices[], 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_encState * st 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 dithering_control( 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber dtx_encState * st 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber void CN_dithering( 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 isf[M], 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 * L_log_en_int, 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * dither_seed 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif /* DTX_H */ 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 243