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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/******************************************************************
iLBC Speech Coder ANSI-C Source Code
iLBC_test.c
******************************************************************/
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "modules/audio_coding/codecs/ilbc/ilbc.h"
//#define JUNK_DATA
#ifdef JUNK_DATA
#define SEED_FILE "randseed.txt"
#endif
/*----------------------------------------------------------------*
* Main program to test iLBC encoding and decoding
*
* Usage:
* exefile_name.exe <infile> <bytefile> <outfile>
*
*---------------------------------------------------------------*/
int main(int argc, char* argv[])
{
FILE *ifileid,*efileid,*ofileid, *chfileid;
short encoded_data[55], data[240], speechType;
int len_int, mode;
short pli;
size_t len, readlen;
int blockcount = 0;
IlbcEncoderInstance *Enc_Inst;
IlbcDecoderInstance *Dec_Inst;
#ifdef JUNK_DATA
size_t i;
FILE *seedfile;
unsigned int random_seed = (unsigned int) time(NULL);//1196764538
#endif
/* Create structs */
WebRtcIlbcfix_EncoderCreate(&Enc_Inst);
WebRtcIlbcfix_DecoderCreate(&Dec_Inst);
/* get arguments and open files */
if (argc != 6 ) {
fprintf(stderr, "%s mode inputfile bytefile outputfile channelfile\n",
argv[0]);
fprintf(stderr, "Example:\n");
fprintf(stderr, "%s <30,20> in.pcm byte.dat out.pcm T30.0.dat\n", argv[0]);
exit(1);
}
mode=atoi(argv[1]);
if (mode != 20 && mode != 30) {
fprintf(stderr,"Wrong mode %s, must be 20, or 30\n", argv[1]);
exit(2);
}
if ( (ifileid=fopen(argv[2],"rb")) == NULL) {
fprintf(stderr,"Cannot open input file %s\n", argv[2]);
exit(2);}
if ( (efileid=fopen(argv[3],"wb")) == NULL) {
fprintf(stderr, "Cannot open channelfile file %s\n",
argv[3]); exit(3);}
if( (ofileid=fopen(argv[4],"wb")) == NULL) {
fprintf(stderr, "Cannot open output file %s\n",
argv[4]); exit(3);}
if ( (chfileid=fopen(argv[5],"rb")) == NULL) {
fprintf(stderr,"Cannot open channel file file %s\n", argv[5]);
exit(2);
}
/* print info */
fprintf(stderr, "\n");
fprintf(stderr,
"*---------------------------------------------------*\n");
fprintf(stderr,
"* *\n");
fprintf(stderr,
"* iLBCtest *\n");
fprintf(stderr,
"* *\n");
fprintf(stderr,
"* *\n");
fprintf(stderr,
"*---------------------------------------------------*\n");
#ifdef SPLIT_10MS
fprintf(stderr,"\n10ms split with raw mode: %2d ms\n", mode);
#else
fprintf(stderr,"\nMode : %2d ms\n", mode);
#endif
fprintf(stderr,"\nInput file : %s\n", argv[2]);
fprintf(stderr,"Coded file : %s\n", argv[3]);
fprintf(stderr,"Output file : %s\n\n", argv[4]);
fprintf(stderr,"Channel file : %s\n\n", argv[5]);
#ifdef JUNK_DATA
srand(random_seed);
if ( (seedfile = fopen(SEED_FILE, "a+t") ) == NULL ) {
fprintf(stderr, "Error: Could not open file %s\n", SEED_FILE);
}
else {
fprintf(seedfile, "%u\n", random_seed);
fclose(seedfile);
}
#endif
/* Initialization */
WebRtcIlbcfix_EncoderInit(Enc_Inst, mode);
WebRtcIlbcfix_DecoderInit(Dec_Inst, mode);
/* loop over input blocks */
#ifdef SPLIT_10MS
readlen = 80;
#else
readlen = (size_t)(mode << 3);
#endif
while(fread(data, sizeof(short), readlen, ifileid) == readlen) {
blockcount++;
/* encoding */
fprintf(stderr, "--- Encoding block %i --- ",blockcount);
len_int=WebRtcIlbcfix_Encode(Enc_Inst, data, readlen, encoded_data);
if (len_int < 0) {
fprintf(stderr, "Error encoding\n");
exit(0);
}
len = (size_t)len_int;
fprintf(stderr, "\r");
#ifdef JUNK_DATA
for ( i = 0; i < len; i++) {
encoded_data[i] = (short) (encoded_data[i] + (short) rand());
}
#endif
/* write byte file */
if(len != 0){ //len may be 0 in 10ms split case
fwrite(encoded_data,1,len,efileid);
/* get channel data if provided */
if (argc==6) {
if (fread(&pli, sizeof(int16_t), 1, chfileid)) {
if ((pli!=0)&&(pli!=1)) {
fprintf(stderr, "Error in channel file\n");
exit(0);
}
if (pli==0) {
/* Packet loss -> remove info from frame */
memset(encoded_data, 0, sizeof(int16_t)*25);
}
} else {
fprintf(stderr, "Error. Channel file too short\n");
exit(0);
}
} else {
pli=1;
}
/* decoding */
fprintf(stderr, "--- Decoding block %i --- ",blockcount);
if (pli==1) {
len_int = WebRtcIlbcfix_Decode(Dec_Inst, encoded_data, len, data,
&speechType);
if (len_int < 0) {
fprintf(stderr, "Error decoding\n");
exit(0);
}
len = (size_t)len_int;
} else {
len=WebRtcIlbcfix_DecodePlc(Dec_Inst, data, 1);
}
fprintf(stderr, "\r");
/* write output file */
fwrite(data,sizeof(short),len,ofileid);
}
}
#ifdef JUNK_DATA
if ( (seedfile = fopen(SEED_FILE, "a+t") ) == NULL ) {
fprintf(stderr, "Error: Could not open file %s\n", SEED_FILE);
}
else {
fprintf(seedfile, "ok\n\n");
fclose(seedfile);
}
#endif
/* free structs */
WebRtcIlbcfix_EncoderFree(Enc_Inst);
WebRtcIlbcfix_DecoderFree(Dec_Inst);
/* close files */
fclose(ifileid);
fclose(efileid);
fclose(ofileid);
return 0;
}