1a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* ------------------------------------------------------------------ 2a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 4a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * you may not use this file except in compliance with the License. 6a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * You may obtain a copy of the License at 7a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 8a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 10a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Unless required by applicable law or agreed to in writing, software 11a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * express or implied. 14a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * See the License for the specific language governing permissions 15a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * and limitations under the License. 16a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * ------------------------------------------------------------------- 17a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber */ 18a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/**************************************************************************************** 19a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPortions of this file are derived from the following 3GPP standard: 20a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 21a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 3GPP TS 26.173 22a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec 23a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Available from http://www.3gpp.org 24a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 25a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPermission to distribute, modify and use this file under the standard license 27a30d40083856cb4edd225faf8b488fab156e5976Andreas Huberterms listed above has been obtained from the copyright holder. 28a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber****************************************************************************************/ 29a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* 30a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 31a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 32a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 33a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 34a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Filename: dec_acelp_4p_in_64.cpp 35a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 36a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Date: 05/08/2007 37a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 38a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 39a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REVISION HISTORY 40a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 41a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 42a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: 43a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 44a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 45a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber INPUT AND OUTPUT DEFINITIONS 46a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 47a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 index[], (i) : index (20): 5+5+5+5 = 20 bits. 48a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (36): 9+9+9+9 = 36 bits. 49a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (44): 13+9+13+9 = 44 bits. 50a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (52): 13+13+13+13 = 52 bits. 51a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. 52a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. 53a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber (i) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. 54a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 nbbits, (i) : 20, 36, 44, 52, 64, 72 or 88 bits 55a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 code[] (o) Q9: algebraic (fixed) codebook excitation 56a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 57a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 58a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber FUNCTION DESCRIPTION 59a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 60a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 20, 36, 44, 52, 64, 72, 88 bits algebraic codebook decoder. 61a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 4 tracks x 16 positions per track = 64 samples. 62a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 63a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 20 bits --> 4 pulses in a frame of 64 samples. 64a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 36 bits --> 8 pulses in a frame of 64 samples. 65a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 44 bits --> 10 pulses in a frame of 64 samples. 66a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 52 bits --> 12 pulses in a frame of 64 samples. 67a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 64 bits --> 16 pulses in a frame of 64 samples. 68a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 72 bits --> 18 pulses in a frame of 64 samples. 69a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 88 bits --> 24 pulses in a frame of 64 samples. 70a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 71a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber All pulses can have two (2) possible amplitudes: +1 or -1. 72a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Each pulse can have sixteen (16) possible positions. 73a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 74a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 75a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REQUIREMENTS 76a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 77a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 78a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 79a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REFERENCES 80a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 81a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 82a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber PSEUDO-CODE 83a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 84a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 85a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber*/ 86a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 87a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 88a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 89a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; INCLUDES 90a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 91a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 92a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "pv_amr_wb_type_defs.h" 93a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "pvamrwbdecoder_basic_op.h" 94a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "pvamrwbdecoder_cnst.h" 95a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "pvamrwbdecoder_acelp.h" 96a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 97a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "q_pulse.h" 98a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 99a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 100a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; MACROS 101a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Define module specific macros here 102a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 103a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 104a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 105a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 106a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; DEFINES 107a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Include all pre-processor statements here. Include conditional 108a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; compile variables also. 109a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 110a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#define L_CODE 64 /* codevector length */ 111a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#define NB_TRACK 4 /* number of track */ 112a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#define NB_POS 16 /* number of position */ 113a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 114a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 115a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; LOCAL FUNCTION DEFINITIONS 116a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Function Prototype declaration 117a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 118a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#ifdef __cplusplus 119a30d40083856cb4edd225faf8b488fab156e5976Andreas Huberextern "C" 120a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber{ 121a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif 122a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 123a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber void add_pulses(int16 pos[], int16 nb_pulse, int16 track, int16 code[]); 124a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 125a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#ifdef __cplusplus 126a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber} 127a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif 128a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 129a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 130a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 131a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Variable declaration - defined here and used outside this module 132a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 133a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 134a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 135a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; EXTERNAL FUNCTION REFERENCES 136a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Declare functions defined elsewhere and referenced in this module 137a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 138a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 139a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 140a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 141a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; Declare variables used in this module but defined elsewhere 142a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 143a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 144a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 145a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; FUNCTION CODE 146a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 147a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 148a30d40083856cb4edd225faf8b488fab156e5976Andreas Hubervoid dec_acelp_4p_in_64( 149a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 index[], /* (i) : index (20): 5+5+5+5 = 20 bits. */ 150a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (36): 9+9+9+9 = 36 bits. */ 151a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (44): 13+9+13+9 = 44 bits. */ 152a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (52): 13+13+13+13 = 52 bits. */ 153a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. */ 154a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. */ 155a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* (i) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. */ 156a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 nbbits, /* (i) : 20, 36, 44, 52, 64, 72 or 88 bits */ 157a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 code[] /* (o) Q9: algebraic (fixed) codebook excitation */ 158a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber) 159a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber{ 160a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 k, pos[6]; 161a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int32 L_index; 162a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber pv_memset(code, 0, L_CODE*sizeof(*code)); 163a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 164a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* decode the positions and signs of pulses and build the codeword */ 165a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 166a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 167a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber switch (nbbits) 168a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 169a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 20: 170a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK; k++) 171a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 172a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = index[k]; 173a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_1p_N1(L_index, 4, 0, pos); 174a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 1, k, code); 175a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 176a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 177a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 178a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 36: 179a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK; k++) 180a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 181a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = index[k]; 182a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_2p_2N1(L_index, 4, 0, pos); 183a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 2, k, code); 184a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 185a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 186a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 44: 187a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK - 2; k++) 188a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 189a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = index[k]; 190a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_3p_3N1(L_index, 4, 0, pos); 191a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 3, k, code); 192a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 193a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 2; k < NB_TRACK; k++) 194a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 195a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = index[k]; 196a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_2p_2N1(L_index, 4, 0, pos); 197a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 2, k, code); 198a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 199a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 200a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 52: 201a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK; k++) 202a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 203a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = index[k]; 204a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_3p_3N1(L_index, 4, 0, pos); 205a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 3, k, code); 206a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 207a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 208a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 64: 209a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK; k++) 210a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 211a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = ((int32)index[k] << 14) + index[k + NB_TRACK]; 212a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_4p_4N(L_index, 4, 0, pos); 213a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 4, k, code); 214a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 215a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 216a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 72: 217a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK - 2; k++) 218a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 219a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = ((int32)index[k] << 10) + index[k + NB_TRACK]; 220a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_5p_5N(L_index, 4, 0, pos); 221a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 5, k, code); 222a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 223a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 2; k < NB_TRACK; k++) 224a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 225a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = ((int32)index[k] << 14) + index[k + NB_TRACK]; 226a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_4p_4N(L_index, 4, 0, pos); 227a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 4, k, code); 228a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 229a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 230a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber case 88: 231a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < NB_TRACK; k++) 232a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 233a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_index = ((int32)index[k] << 11) + index[k + NB_TRACK]; 234a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber dec_6p_6N_2(L_index, 4, 0, pos); 235a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber add_pulses(pos, 6, k, code); 236a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 237a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber default: 238a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber break; 239a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 240a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 241a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 242a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber} 243a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 244a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 245a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 246a30d40083856cb4edd225faf8b488fab156e5976Andreas Hubervoid add_pulses(int16 pos[], int16 nb_pulse, int16 track, int16 code[]) 247a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber{ 248a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber int16 i, k; 249a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 250a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber for (k = 0; k < nb_pulse; k++) 251a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 252a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /* i = ((pos[k] & (NB_POS-1))*NB_TRACK) + track; */ 253a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber i = ((pos[k] & (NB_POS - 1)) << 2) + track; 254a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 255a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber if ((pos[k] & NB_POS) == 0) 256a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 257a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber code[i] += 512; 258a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 259a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber else 260a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 261a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber code[i] -= 512; 262a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 263a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 264a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 265a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber} 266