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/*
* Copyright (c) 2012 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.
*/
/*
* testG722.cpp : Defines the entry point for the console application.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* include API */
#include "modules/audio_coding/codecs/g722/g722_interface.h"
/* Runtime statistics */
#include <time.h>
#define CLOCKS_PER_SEC_G722 100000
// Forward declaration
typedef struct WebRtcG722EncInst G722EncInst;
typedef struct WebRtcG722DecInst G722DecInst;
/* function for reading audio data from PCM file */
bool readframe(int16_t* data, FILE* inp, size_t length) {
size_t rlen = fread(data, sizeof(int16_t), length, inp);
if (rlen >= length)
return false;
memset(data + rlen, 0, (length - rlen) * sizeof(int16_t));
return true;
}
int main(int argc, char* argv[]) {
char inname[60], outbit[40], outname[40];
FILE *inp, *outbitp, *outp;
int framecnt;
bool endfile;
size_t framelength = 160;
G722EncInst* G722enc_inst;
G722DecInst* G722dec_inst;
/* Runtime statistics */
double starttime;
double runtime = 0;
double length_file;
size_t stream_len = 0;
int16_t shortdata[960];
int16_t decoded[960];
uint8_t streamdata[80 * 6];
int16_t speechType[1];
/* handling wrong input arguments in the command line */
if (argc != 5) {
printf("\n\nWrong number of arguments or flag values.\n\n");
printf("\n");
printf("Usage:\n\n");
printf("./testG722.exe framelength infile outbitfile outspeechfile \n\n");
printf("with:\n");
printf("framelength : Framelength in samples.\n\n");
printf("infile : Normal speech input file\n\n");
printf("outbitfile : Bitstream output file\n\n");
printf("outspeechfile: Speech output file\n\n");
exit(0);
}
/* Get frame length */
int framelength_int = atoi(argv[1]);
if (framelength_int < 0) {
printf(" G.722: Invalid framelength %d.\n", framelength_int);
exit(1);
}
framelength = static_cast<size_t>(framelength_int);
/* Get Input and Output files */
sscanf(argv[2], "%s", inname);
sscanf(argv[3], "%s", outbit);
sscanf(argv[4], "%s", outname);
if ((inp = fopen(inname, "rb")) == NULL) {
printf(" G.722: Cannot read file %s.\n", inname);
exit(1);
}
if ((outbitp = fopen(outbit, "wb")) == NULL) {
printf(" G.722: Cannot write file %s.\n", outbit);
exit(1);
}
if ((outp = fopen(outname, "wb")) == NULL) {
printf(" G.722: Cannot write file %s.\n", outname);
exit(1);
}
printf("\nInput:%s\nOutput bitstream:%s\nOutput:%s\n", inname, outbit,
outname);
/* Create and init */
WebRtcG722_CreateEncoder((G722EncInst**)&G722enc_inst);
WebRtcG722_CreateDecoder((G722DecInst**)&G722dec_inst);
WebRtcG722_EncoderInit((G722EncInst*)G722enc_inst);
WebRtcG722_DecoderInit((G722DecInst*)G722dec_inst);
/* Initialize encoder and decoder */
framecnt = 0;
endfile = false;
while (!endfile) {
framecnt++;
/* Read speech block */
endfile = readframe(shortdata, inp, framelength);
/* Start clock before call to encoder and decoder */
starttime = clock() / (double)CLOCKS_PER_SEC_G722;
/* G.722 encoding + decoding */
stream_len = WebRtcG722_Encode((G722EncInst*)G722enc_inst, shortdata,
framelength, streamdata);
WebRtcG722_Decode(G722dec_inst, streamdata, stream_len, decoded,
speechType);
/* Stop clock after call to encoder and decoder */
runtime += (double)((clock() / (double)CLOCKS_PER_SEC_G722) - starttime);
/* Write coded bits to file */
if (fwrite(streamdata, sizeof(short), stream_len / 2, outbitp) !=
stream_len / 2) {
return -1;
}
/* Write coded speech to file */
if (fwrite(decoded, sizeof(short), framelength, outp) != framelength) {
return -1;
}
}
WebRtcG722_FreeEncoder((G722EncInst*)G722enc_inst);
WebRtcG722_FreeDecoder((G722DecInst*)G722dec_inst);
length_file = ((double)framecnt * (double)framelength / 16000);
printf("\n\nLength of speech file: %.1f s\n", length_file);
printf("Time to run G.722: %.2f s (%.2f %% of realtime)\n\n", runtime,
(100 * runtime / length_file));
printf("---------------------END----------------------\n");
fclose(inp);
fclose(outbitp);
fclose(outp);
return 0;
}