Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | |
| 2 | /****************************************************************** |
| 3 | |
| 4 | iLBC Speech Coder ANSI-C Source Code |
| 5 | |
| 6 | iLBC_test.c |
| 7 | |
| 8 | Copyright (C) The Internet Society (2004). |
| 9 | All Rights Reserved. |
| 10 | |
| 11 | ******************************************************************/ |
| 12 | |
| 13 | #include <math.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <stdio.h> |
| 16 | #include <string.h> |
| 17 | #include "iLBC_define.h" |
| 18 | #include "iLBC_encode.h" |
| 19 | #include "iLBC_decode.h" |
| 20 | |
| 21 | /* Runtime statistics */ |
| 22 | #include <time.h> |
| 23 | |
| 24 | #define ILBCNOOFWORDS_MAX (NO_OF_BYTES_30MS/2) |
| 25 | |
| 26 | /*----------------------------------------------------------------* |
| 27 | * Encoder interface function |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 32 | |
| 33 | *---------------------------------------------------------------*/ |
| 34 | |
| 35 | short encode( /* (o) Number of bytes encoded */ |
| 36 | iLBC_Enc_Inst_t *iLBCenc_inst, |
| 37 | /* (i/o) Encoder instance */ |
| 38 | short *encoded_data, /* (o) The encoded bytes */ |
| 39 | short *data /* (i) The signal block to encode*/ |
| 40 | ){ |
| 41 | float block[BLOCKL_MAX]; |
| 42 | int k; |
| 43 | |
| 44 | /* convert signal to float */ |
| 45 | |
| 46 | for (k=0; k<iLBCenc_inst->blockl; k++) |
| 47 | block[k] = (float)data[k]; |
| 48 | |
| 49 | /* do the actual encoding */ |
| 50 | |
| 51 | iLBC_encode((unsigned char *)encoded_data, block, iLBCenc_inst); |
| 52 | |
| 53 | |
| 54 | return (iLBCenc_inst->no_of_bytes); |
| 55 | } |
| 56 | |
| 57 | /*----------------------------------------------------------------* |
| 58 | * Decoder interface function |
| 59 | *---------------------------------------------------------------*/ |
| 60 | |
| 61 | short decode( /* (o) Number of decoded samples */ |
| 62 | iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) Decoder instance */ |
| 63 | short *decoded_data, /* (o) Decoded signal block*/ |
| 64 | short *encoded_data, /* (i) Encoded bytes */ |
| 65 | short mode /* (i) 0=PL, 1=Normal */ |
| 66 | ){ |
| 67 | int k; |
| 68 | float decblock[BLOCKL_MAX], dtmp; |
| 69 | |
| 70 | /* check if mode is valid */ |
| 71 | |
| 72 | if (mode<0 || mode>1) { |
| 73 | printf("\nERROR - Wrong mode - 0, 1 allowed\n"); exit(3);} |
| 74 | |
| 75 | /* do actual decoding of block */ |
| 76 | |
| 77 | iLBC_decode(decblock, (unsigned char *)encoded_data, |
| 78 | iLBCdec_inst, mode); |
| 79 | |
| 80 | /* convert to short */ |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | |
| 86 | for (k=0; k<iLBCdec_inst->blockl; k++){ |
| 87 | dtmp=decblock[k]; |
| 88 | |
| 89 | if (dtmp<MIN_SAMPLE) |
| 90 | dtmp=MIN_SAMPLE; |
| 91 | else if (dtmp>MAX_SAMPLE) |
| 92 | dtmp=MAX_SAMPLE; |
| 93 | decoded_data[k] = (short) dtmp; |
| 94 | } |
| 95 | |
| 96 | return (iLBCdec_inst->blockl); |
| 97 | } |
| 98 | |
| 99 | /*---------------------------------------------------------------* |
| 100 | * Main program to test iLBC encoding and decoding |
| 101 | * |
| 102 | * Usage: |
| 103 | * exefile_name.exe <infile> <bytefile> <outfile> <channel> |
| 104 | * |
| 105 | * <infile> : Input file, speech for encoder (16-bit pcm file) |
| 106 | * <bytefile> : Bit stream output from the encoder |
| 107 | * <outfile> : Output file, decoded speech (16-bit pcm file) |
| 108 | * <channel> : Bit error file, optional (16-bit) |
| 109 | * 1 - Packet received correctly |
| 110 | * 0 - Packet Lost |
| 111 | * |
| 112 | *--------------------------------------------------------------*/ |
| 113 | |
| 114 | int main(int argc, char* argv[]) |
| 115 | { |
| 116 | |
| 117 | /* Runtime statistics */ |
| 118 | |
| 119 | float starttime; |
| 120 | float runtime; |
| 121 | float outtime; |
| 122 | |
| 123 | FILE *ifileid,*efileid,*ofileid, *cfileid; |
| 124 | short data[BLOCKL_MAX]; |
| 125 | short encoded_data[ILBCNOOFWORDS_MAX], decoded_data[BLOCKL_MAX]; |
| 126 | int len; |
| 127 | short pli, mode; |
| 128 | int blockcount = 0; |
| 129 | int packetlosscount = 0; |
| 130 | |
| 131 | /* Create structs */ |
| 132 | iLBC_Enc_Inst_t Enc_Inst; |
| 133 | iLBC_Dec_Inst_t Dec_Inst; |
| 134 | |
| 135 | |
| 136 | |
| 137 | |
| 138 | |
| 139 | /* get arguments and open files */ |
| 140 | |
| 141 | if ((argc!=5) && (argc!=6)) { |
| 142 | fprintf(stderr, |
| 143 | "\n*-----------------------------------------------*\n"); |
| 144 | fprintf(stderr, |
| 145 | " %s <20,30> input encoded decoded (channel)\n\n", |
| 146 | argv[0]); |
| 147 | fprintf(stderr, |
| 148 | " mode : Frame size for the encoding/decoding\n"); |
| 149 | fprintf(stderr, |
| 150 | " 20 - 20 ms\n"); |
| 151 | fprintf(stderr, |
| 152 | " 30 - 30 ms\n"); |
| 153 | fprintf(stderr, |
| 154 | " input : Speech for encoder (16-bit pcm file)\n"); |
| 155 | fprintf(stderr, |
| 156 | " encoded : Encoded bit stream\n"); |
| 157 | fprintf(stderr, |
| 158 | " decoded : Decoded speech (16-bit pcm file)\n"); |
| 159 | fprintf(stderr, |
| 160 | " channel : Packet loss pattern, optional (16-bit)\n"); |
| 161 | fprintf(stderr, |
| 162 | " 1 - Packet received correctly\n"); |
| 163 | fprintf(stderr, |
| 164 | " 0 - Packet Lost\n"); |
| 165 | fprintf(stderr, |
| 166 | "*-----------------------------------------------*\n\n"); |
| 167 | exit(1); |
| 168 | } |
| 169 | mode=atoi(argv[1]); |
| 170 | if (mode != 20 && mode != 30) { |
| 171 | fprintf(stderr,"Wrong mode %s, must be 20, or 30\n", |
| 172 | argv[1]); |
| 173 | exit(2); |
| 174 | } |
| 175 | if ( (ifileid=fopen(argv[2],"rb")) == NULL) { |
| 176 | fprintf(stderr,"Cannot open input file %s\n", argv[2]); |
| 177 | exit(2);} |
| 178 | if ( (efileid=fopen(argv[3],"wb")) == NULL) { |
| 179 | fprintf(stderr, "Cannot open encoded file %s\n", |
| 180 | argv[3]); exit(1);} |
| 181 | if ( (ofileid=fopen(argv[4],"wb")) == NULL) { |
| 182 | fprintf(stderr, "Cannot open decoded file %s\n", |
| 183 | argv[4]); exit(1);} |
| 184 | if (argc==6) { |
| 185 | if( (cfileid=fopen(argv[5],"rb")) == NULL) { |
| 186 | fprintf(stderr, "Cannot open channel file %s\n", |
| 187 | |
| 188 | |
| 189 | |
| 190 | |
| 191 | |
| 192 | argv[5]); |
| 193 | exit(1); |
| 194 | } |
| 195 | } else { |
| 196 | cfileid=NULL; |
| 197 | } |
| 198 | |
| 199 | /* print info */ |
| 200 | |
| 201 | fprintf(stderr, "\n"); |
| 202 | fprintf(stderr, |
| 203 | "*---------------------------------------------------*\n"); |
| 204 | fprintf(stderr, |
| 205 | "* *\n"); |
| 206 | fprintf(stderr, |
| 207 | "* iLBC test program *\n"); |
| 208 | fprintf(stderr, |
| 209 | "* *\n"); |
| 210 | fprintf(stderr, |
| 211 | "* *\n"); |
| 212 | fprintf(stderr, |
| 213 | "*---------------------------------------------------*\n"); |
| 214 | fprintf(stderr,"\nMode : %2d ms\n", mode); |
| 215 | fprintf(stderr,"Input file : %s\n", argv[2]); |
| 216 | fprintf(stderr,"Encoded file : %s\n", argv[3]); |
| 217 | fprintf(stderr,"Output file : %s\n", argv[4]); |
| 218 | if (argc==6) { |
| 219 | fprintf(stderr,"Channel file : %s\n", argv[5]); |
| 220 | } |
| 221 | fprintf(stderr,"\n"); |
| 222 | |
| 223 | /* Initialization */ |
| 224 | |
| 225 | initEncode(&Enc_Inst, mode); |
| 226 | initDecode(&Dec_Inst, mode, 1); |
| 227 | |
| 228 | /* Runtime statistics */ |
| 229 | |
| 230 | starttime=clock()/(float)CLOCKS_PER_SEC; |
| 231 | |
| 232 | /* loop over input blocks */ |
| 233 | |
| 234 | while (fread(data,sizeof(short),Enc_Inst.blockl,ifileid)== |
| 235 | (size_t)Enc_Inst.blockl) { |
| 236 | |
| 237 | blockcount++; |
| 238 | |
| 239 | /* encoding */ |
| 240 | |
| 241 | |
| 242 | |
| 243 | |
| 244 | |
| 245 | fprintf(stderr, "--- Encoding block %i --- ",blockcount); |
| 246 | len=encode(&Enc_Inst, encoded_data, data); |
| 247 | fprintf(stderr, "\r"); |
| 248 | |
| 249 | /* write byte file */ |
| 250 | |
| 251 | fwrite(encoded_data, sizeof(unsigned char), len, efileid); |
| 252 | |
| 253 | /* get channel data if provided */ |
| 254 | if (argc==6) { |
| 255 | if (fread(&pli, sizeof(short), 1, cfileid)) { |
| 256 | if ((pli!=0)&&(pli!=1)) { |
| 257 | fprintf(stderr, "Error in channel file\n"); |
| 258 | exit(0); |
| 259 | } |
| 260 | if (pli==0) { |
| 261 | /* Packet loss -> remove info from frame */ |
| 262 | memset(encoded_data, 0, |
| 263 | sizeof(short)*ILBCNOOFWORDS_MAX); |
| 264 | packetlosscount++; |
| 265 | } |
| 266 | } else { |
| 267 | fprintf(stderr, "Error. Channel file too short\n"); |
| 268 | exit(0); |
| 269 | } |
| 270 | } else { |
| 271 | pli=1; |
| 272 | } |
| 273 | |
| 274 | /* decoding */ |
| 275 | |
| 276 | fprintf(stderr, "--- Decoding block %i --- ",blockcount); |
| 277 | |
| 278 | len=decode(&Dec_Inst, decoded_data, encoded_data, pli); |
| 279 | fprintf(stderr, "\r"); |
| 280 | |
| 281 | /* write output file */ |
| 282 | |
| 283 | fwrite(decoded_data,sizeof(short),len,ofileid); |
| 284 | } |
| 285 | |
| 286 | /* Runtime statistics */ |
| 287 | |
| 288 | runtime = (float)(clock()/(float)CLOCKS_PER_SEC-starttime); |
| 289 | outtime = (float)((float)blockcount*(float)mode/1000.0); |
| 290 | printf("\n\nLength of speech file: %.1f s\n", outtime); |
| 291 | printf("Packet loss : %.1f%%\n", |
| 292 | 100.0*(float)packetlosscount/(float)blockcount); |
| 293 | |
| 294 | |
| 295 | |
| 296 | |
| 297 | |
| 298 | printf("Time to run iLBC :"); |
| 299 | printf(" %.1f s (%.1f %% of realtime)\n\n", runtime, |
| 300 | (100*runtime/outtime)); |
| 301 | |
| 302 | /* close files */ |
| 303 | |
| 304 | fclose(ifileid); fclose(efileid); fclose(ofileid); |
| 305 | if (argc==6) { |
| 306 | fclose(cfileid); |
| 307 | } |
| 308 | return(0); |
| 309 | } |
| 310 | |