1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 /****************************************************************** 12 13 iLBC Speech Coder ANSI-C Source Code 14 15 iLBC_test.c 16 17 ******************************************************************/ 18 19 #include <stdlib.h> 20 #include <stdio.h> 21 #include <string.h> 22 #include "webrtc/modules/audio_coding/codecs/ilbc/ilbc.h" 23 24 /*---------------------------------------------------------------* 25 * Main program to test iLBC encoding and decoding 26 * 27 * Usage: 28 * exefile_name.exe <infile> <bytefile> <outfile> <channel> 29 * 30 * <infile> : Input file, speech for encoder (16-bit pcm file) 31 * <bytefile> : Bit stream output from the encoder 32 * <outfile> : Output file, decoded speech (16-bit pcm file) 33 * <channel> : Bit error file, optional (16-bit) 34 * 1 - Packet received correctly 35 * 0 - Packet Lost 36 * 37 *--------------------------------------------------------------*/ 38 39 #define BLOCKL_MAX 240 40 #define ILBCNOOFWORDS_MAX 25 41 42 43 int main(int argc, char* argv[]) 44 { 45 46 FILE *ifileid,*efileid,*ofileid, *cfileid; 47 int16_t data[BLOCKL_MAX]; 48 uint8_t encoded_data[2 * ILBCNOOFWORDS_MAX]; 49 int16_t decoded_data[BLOCKL_MAX]; 50 int len_int, mode; 51 short pli; 52 int blockcount = 0; 53 int packetlosscount = 0; 54 size_t frameLen, len, len_i16s; 55 int16_t speechType; 56 IlbcEncoderInstance *Enc_Inst; 57 IlbcDecoderInstance *Dec_Inst; 58 59 #ifdef __ILBC_WITH_40BITACC 60 /* Doublecheck that long long exists */ 61 if (sizeof(long)>=sizeof(long long)) { 62 fprintf(stderr, "40-bit simulation is not be supported on this platform\n"); 63 exit(0); 64 } 65 #endif 66 67 /* get arguments and open files */ 68 69 if ((argc!=5) && (argc!=6)) { 70 fprintf(stderr, 71 "\n*-----------------------------------------------*\n"); 72 fprintf(stderr, 73 " %s <20,30> input encoded decoded (channel)\n\n", 74 argv[0]); 75 fprintf(stderr, 76 " mode : Frame size for the encoding/decoding\n"); 77 fprintf(stderr, 78 " 20 - 20 ms\n"); 79 fprintf(stderr, 80 " 30 - 30 ms\n"); 81 fprintf(stderr, 82 " input : Speech for encoder (16-bit pcm file)\n"); 83 fprintf(stderr, 84 " encoded : Encoded bit stream\n"); 85 fprintf(stderr, 86 " decoded : Decoded speech (16-bit pcm file)\n"); 87 fprintf(stderr, 88 " channel : Packet loss pattern, optional (16-bit)\n"); 89 fprintf(stderr, 90 " 1 - Packet received correctly\n"); 91 fprintf(stderr, 92 " 0 - Packet Lost\n"); 93 fprintf(stderr, 94 "*-----------------------------------------------*\n\n"); 95 exit(1); 96 } 97 mode=atoi(argv[1]); 98 if (mode != 20 && mode != 30) { 99 fprintf(stderr,"Wrong mode %s, must be 20, or 30\n", 100 argv[1]); 101 exit(2); 102 } 103 if ( (ifileid=fopen(argv[2],"rb")) == NULL) { 104 fprintf(stderr,"Cannot open input file %s\n", argv[2]); 105 exit(2);} 106 if ( (efileid=fopen(argv[3],"wb")) == NULL) { 107 fprintf(stderr, "Cannot open encoded file file %s\n", 108 argv[3]); exit(1);} 109 if ( (ofileid=fopen(argv[4],"wb")) == NULL) { 110 fprintf(stderr, "Cannot open decoded file %s\n", 111 argv[4]); exit(1);} 112 if (argc==6) { 113 if( (cfileid=fopen(argv[5],"rb")) == NULL) { 114 fprintf(stderr, "Cannot open channel file %s\n", 115 argv[5]); 116 exit(1); 117 } 118 } else { 119 cfileid=NULL; 120 } 121 122 /* print info */ 123 124 fprintf(stderr, "\n"); 125 fprintf(stderr, 126 "*---------------------------------------------------*\n"); 127 fprintf(stderr, 128 "* *\n"); 129 fprintf(stderr, 130 "* iLBC test program *\n"); 131 fprintf(stderr, 132 "* *\n"); 133 fprintf(stderr, 134 "* *\n"); 135 fprintf(stderr, 136 "*---------------------------------------------------*\n"); 137 fprintf(stderr,"\nMode : %2d ms\n", mode); 138 fprintf(stderr,"Input file : %s\n", argv[2]); 139 fprintf(stderr,"Encoded file : %s\n", argv[3]); 140 fprintf(stderr,"Output file : %s\n", argv[4]); 141 if (argc==6) { 142 fprintf(stderr,"Channel file : %s\n", argv[5]); 143 } 144 fprintf(stderr,"\n"); 145 146 /* Create structs */ 147 WebRtcIlbcfix_EncoderCreate(&Enc_Inst); 148 WebRtcIlbcfix_DecoderCreate(&Dec_Inst); 149 150 151 /* Initialization */ 152 153 WebRtcIlbcfix_EncoderInit(Enc_Inst, mode); 154 WebRtcIlbcfix_DecoderInit(Dec_Inst, mode); 155 frameLen = (size_t)(mode*8); 156 157 /* loop over input blocks */ 158 159 while (fread(data,sizeof(int16_t),frameLen,ifileid) == frameLen) { 160 161 blockcount++; 162 163 /* encoding */ 164 165 fprintf(stderr, "--- Encoding block %i --- ",blockcount); 166 len_int = WebRtcIlbcfix_Encode(Enc_Inst, data, frameLen, encoded_data); 167 if (len_int < 0) { 168 fprintf(stderr, "Error encoding\n"); 169 exit(0); 170 } 171 len = (size_t)len_int; 172 fprintf(stderr, "\r"); 173 174 /* write byte file */ 175 176 len_i16s = (len + 1) / sizeof(int16_t); 177 if (fwrite(encoded_data, sizeof(int16_t), len_i16s, efileid) != len_i16s) { 178 return -1; 179 } 180 181 /* get channel data if provided */ 182 if (argc==6) { 183 if (fread(&pli, sizeof(int16_t), 1, cfileid)) { 184 if ((pli!=0)&&(pli!=1)) { 185 fprintf(stderr, "Error in channel file\n"); 186 exit(0); 187 } 188 if (pli==0) { 189 /* Packet loss -> remove info from frame */ 190 memset(encoded_data, 0, 191 sizeof(int16_t)*ILBCNOOFWORDS_MAX); 192 packetlosscount++; 193 } 194 } else { 195 fprintf(stderr, "Error. Channel file too short\n"); 196 exit(0); 197 } 198 } else { 199 pli=1; 200 } 201 202 /* decoding */ 203 204 fprintf(stderr, "--- Decoding block %i --- ",blockcount); 205 if (pli==1) { 206 len_int=WebRtcIlbcfix_Decode(Dec_Inst, encoded_data, 207 len, decoded_data,&speechType); 208 if (len_int < 0) { 209 fprintf(stderr, "Error decoding\n"); 210 exit(0); 211 } 212 len = (size_t)len_int; 213 } else { 214 len=WebRtcIlbcfix_DecodePlc(Dec_Inst, decoded_data, 1); 215 } 216 fprintf(stderr, "\r"); 217 218 /* write output file */ 219 220 if (fwrite(decoded_data, sizeof(int16_t), len, ofileid) != len) { 221 return -1; 222 } 223 } 224 225 /* close files */ 226 227 fclose(ifileid); fclose(efileid); fclose(ofileid); 228 if (argc==6) { 229 fclose(cfileid); 230 } 231 232 /* Free structs */ 233 WebRtcIlbcfix_EncoderFree(Enc_Inst); 234 WebRtcIlbcfix_DecoderFree(Dec_Inst); 235 236 237 printf("\nDone with simulation\n\n"); 238 239 return(0); 240 } 241
