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 Filename: qpisf_2s.cpp 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Date: 05/08/2007 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * seed seed for the random ng 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Coding/Decoding of ISF parameters with prediction. 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber The ISF vector is quantized using two-stage VQ with split-by-2 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber in 1st stage and split-by-5 (or 3)in the second stage. 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "pv_amr_wb_type_defs.h" 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "pvamrwbdecoder_basic_op.h" 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "pvamrwbdecoder_cnst.h" 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "pvamrwbdecoder_acelp.h" 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "qisf_ns.h" 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "qpisf_2s.h" 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; MACROS 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Define module specific macros here 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; DEFINES 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Include all pre-processor statements here. Include conditional 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; compile variables also. 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define MU 10923 /* Prediction factor (1.0/3.0) in Q15 */ 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define N_SURV_MAX 4 /* 4 survivors max */ 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ALPHA 29491 /* 0. 9 in Q15 */ 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define ONE_ALPHA (32768-ALPHA) /* (1.0 - ALPHA) in Q15 */ 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL FUNCTION DEFINITIONS 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Function Prototype declaration 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Variable declaration - defined here and used outside this module 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL FUNCTION REFERENCES 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare functions defined elsewhere and referenced in this module 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare variables used in this module but defined elsewhere 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; FUNCTION CODE 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*-------------------------------------------------------------------* 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * routine: Disf_2s_46b() * 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ~~~~~~~~~ * 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Decoding of ISF parameters * 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber *-------------------------------------------------------------------*/ 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid Dpisf_2s_46b( 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * indice, /* input: quantization indices */ 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * past_isfq,/* i/0 : past ISF quantizer */ 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isfold, /* input : past quantized ISF */ 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_buf, /* input : isf buffer */ 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 bfi, /* input : Bad frame indicator */ 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 enc_dec 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 ref_isf[M]; 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 i, j, tmp; 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 L_tmp; 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (bfi == 0) /* Good frame */ 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 9; i++) 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = dico1_isf[(indice[0] << 3) + indice[0] + i]; 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 7; i++) 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 9] = dico2_isf[(indice[1] << 3) - indice[1] + i]; 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 3; i++) 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] += dico21_isf[indice[2] * 3 + i]; 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 3] += dico22_isf[indice[3] * 3 + i]; 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 6] += dico23_isf[indice[4] * 3 + i]; 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 9] += dico24_isf[indice[5] * 3 + i]; 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 12] += dico25_isf[(indice[6] << 2) + i]; 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 12] += dico25_isf[(indice[6] << 2) + i]; 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp = isf_q[i]; 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] += mean_isf[i]; 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] += ((int32)MU * past_isfq[i]) >> 15; 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] = tmp; 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (enc_dec) 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (j = (L_MEANBUF - 1); j > 0; j--) 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_buf[j * M + i] = isf_buf[(j - 1) * M + i]; 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_buf[i] = isf_q[i]; 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { /* bad frame */ 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_tmp = mul_16by16_to_int32(mean_isf[i], 8192); 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (j = 0; j < L_MEANBUF; j++) 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_tmp = mac_16by16_to_int32(L_tmp, isf_buf[j * M + i], 8192); 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ref_isf[i] = amr_wb_round(L_tmp); 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* use the past ISFs slightly shifted towards their mean */ 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = add_int16(mult_int16(ALPHA, isfold[i]), mult_int16(ONE_ALPHA, ref_isf[i])); 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* estimate past quantized residual to be used in next frame */ 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp = add_int16(ref_isf[i], mult_int16(past_isfq[i], MU)); /* predicted ISF */ 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] = sub_int16(isf_q[i], tmp); 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] >>= 1; /* past_isfq[i] *= 0.5 */ 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_isf(isf_q, ISF_GAP, ORDER); 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * routine: Disf_2s_36b() 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ~~~~~~~~~ 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Decoding of ISF parameters 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid Dpisf_2s_36b( 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * indice, /* input: quantization indices */ 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */ 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * past_isfq, /* i/0 : past ISF quantizer */ 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isfold, /* input : past quantized ISF */ 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf_buf, /* input : isf buffer */ 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 bfi, /* input : Bad frame indicator */ 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 enc_dec 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 ref_isf[M]; 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 i, j, tmp; 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int32 L_tmp; 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (bfi == 0) /* Good frame */ 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 9; i++) 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = dico1_isf[indice[0] * 9 + i]; 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 7; i++) 2484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 9] = add_int16(dico2_isf[indice[1] * 7 + i], dico23_isf_36b[indice[4] * 7 + i]); 2504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 5; i++) 2534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = add_int16(isf_q[i], dico21_isf_36b[indice[2] * 5 + i]); 2554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < 4; i++) 2574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i + 5] = add_int16(isf_q[i + 5], dico22_isf_36b[(indice[3] << 2) + i]); 2594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 2624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp = isf_q[i]; 2644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = add_int16(tmp, mean_isf[i]); 2654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = add_int16(isf_q[i], mult_int16(MU, past_isfq[i])); 2664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] = tmp; 2674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (enc_dec) 2714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 2734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (j = (L_MEANBUF - 1); j > 0; j--) 2754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_buf[j * M + i] = isf_buf[(j - 1) * M + i]; 2774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_buf[i] = isf_q[i]; 2794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 2834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { /* bad frame */ 2844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < M; i++) 2854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_tmp = mul_16by16_to_int32(mean_isf[i], 8192); 2874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (j = 0; j < L_MEANBUF; j++) 2884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_tmp = mac_16by16_to_int32(L_tmp, isf_buf[j * M + i], 8192); 2904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ref_isf[i] = amr_wb_round(L_tmp); 2934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* use the past ISFs slightly shifted towards their mean */ 2964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 2974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_q[i] = add_int16(mult_int16(ALPHA, isfold[i]), mult_int16(ONE_ALPHA, ref_isf[i])); 2994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* estimate past quantized residual to be used in next frame */ 3024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < ORDER; i++) 3044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber tmp = add_int16(ref_isf[i], mult_int16(past_isfq[i], MU)); /* predicted ISF */ 3064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] = sub_int16(isf_q[i], tmp); 3074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber past_isfq[i] >>= 1; /* past_isfq[i] *= 0.5 */ 3084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Reorder_isf(isf_q, ISF_GAP, ORDER); 3124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 3144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 3154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 3174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * procedure Reorder_isf() 3184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ~~~~~~~~~~~~~ 3194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * To make sure that the isfs are properly order and to keep a certain 3204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * minimum distance between consecutive isfs. 3214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 3224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Argument description in/out 3234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ~~~~~~~~ ~~~~~~~~~~~ ~~~~~~ 3244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * isf[] vector of isfs i/o 3254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * min_dist minimum required distance i 3264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * n LPC order i 3274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 3284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Hubervoid Reorder_isf( 3304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 * isf, /* (i/o) Q15: ISF in the frequency domain (0..0.5) */ 3314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 min_dist, /* (i) Q15 : minimum distance to keep */ 3324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 n /* (i) : number of ISF */ 3334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber) 3344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 3354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber int16 i, isf_min; 3364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_min = min_dist; 3384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (i = 0; i < n - 1; i++) 3404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (isf[i] < isf_min) 3424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 3434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf[i] = isf_min; 3444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber isf_min = add_int16(isf[i], min_dist); 3464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 3474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return; 3494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 3504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 351