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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.
*/
/*
* testG711.cpp : Defines the entry point for the console application.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* include API */
#include "g711_interface.h"
/* Runtime statistics */
#include <time.h>
#define CLOCKS_PER_SEC_G711 1000
/* function for reading audio data from PCM file */
int readframe(int16_t* data, FILE* inp, int length) {
short k, rlen, status = 0;
rlen = (short) fread(data, sizeof(int16_t), length, inp);
if (rlen < length) {
for (k = rlen; k < length; k++)
data[k] = 0;
status = 1;
}
return status;
}
int main(int argc, char* argv[]) {
char inname[80], outname[40], bitname[40];
FILE* inp;
FILE* outp;
FILE* bitp = NULL;
int framecnt, endfile;
int16_t framelength = 80;
int err;
/* Runtime statistics */
double starttime;
double runtime;
double length_file;
int16_t stream_len = 0;
int16_t shortdata[480];
int16_t decoded[480];
int16_t streamdata[500];
int16_t speechType[1];
char law[2];
char versionNumber[40];
/* handling wrong input arguments in the command line */
if ((argc != 5) && (argc != 6)) {
printf("\n\nWrong number of arguments or flag values.\n\n");
printf("\n");
printf("\nG.711 test application\n\n");
printf("Usage:\n\n");
printf("./testG711.exe framelength law infile outfile \n\n");
printf("framelength: Framelength in samples.\n");
printf("law : Coding law, A och u.\n");
printf("infile : Normal speech input file\n");
printf("outfile : Speech output file\n\n");
printf("outbits : Output bitstream file [optional]\n\n");
exit(0);
}
/* Get version and print */
WebRtcG711_Version(versionNumber, 40);
printf("-----------------------------------\n");
printf("G.711 version: %s\n\n", versionNumber);
/* Get frame length */
framelength = atoi(argv[1]);
/* Get compression law */
strcpy(law, argv[2]);
/* Get Input and Output files */
sscanf(argv[3], "%s", inname);
sscanf(argv[4], "%s", outname);
if (argc == 6) {
sscanf(argv[5], "%s", bitname);
if ((bitp = fopen(bitname, "wb")) == NULL) {
printf(" G.711: Cannot read file %s.\n", bitname);
exit(1);
}
}
if ((inp = fopen(inname, "rb")) == NULL) {
printf(" G.711: Cannot read file %s.\n", inname);
exit(1);
}
if ((outp = fopen(outname, "wb")) == NULL) {
printf(" G.711: Cannot write file %s.\n", outname);
exit(1);
}
printf("\nInput: %s\nOutput: %s\n", inname, outname);
if (argc == 6) {
printf("\nBitfile: %s\n", bitname);
}
starttime = clock() / (double) CLOCKS_PER_SEC_G711; /* Runtime statistics */
/* Initialize encoder and decoder */
framecnt = 0;
endfile = 0;
while (endfile == 0) {
framecnt++;
/* Read speech block */
endfile = readframe(shortdata, inp, framelength);
/* G.711 encoding */
if (!strcmp(law, "A")) {
/* A-law encoding */
stream_len = WebRtcG711_EncodeA(shortdata, framelength, streamdata);
if (argc == 6) {
/* Write bits to file */
if (fwrite(streamdata, sizeof(unsigned char), stream_len, bitp) !=
static_cast<size_t>(stream_len)) {
return -1;
}
}
err = WebRtcG711_DecodeA(streamdata, stream_len, decoded,
speechType);
} else if (!strcmp(law, "u")) {
/* u-law encoding */
stream_len = WebRtcG711_EncodeU(shortdata, framelength, streamdata);
if (argc == 6) {
/* Write bits to file */
if (fwrite(streamdata, sizeof(unsigned char), stream_len, bitp) !=
static_cast<size_t>(stream_len)) {
return -1;
}
}
err = WebRtcG711_DecodeU(streamdata, stream_len, decoded, speechType);
} else {
printf("Wrong law mode\n");
exit(1);
}
if (stream_len < 0 || err < 0) {
/* exit if returned with error */
printf("Error in encoder/decoder\n");
} else {
/* Write coded speech to file */
if (fwrite(decoded, sizeof(short), framelength, outp) !=
static_cast<size_t>(framelength)) {
return -1;
}
}
}
runtime = (double)(clock() / (double) CLOCKS_PER_SEC_G711 - starttime);
length_file = ((double) framecnt * (double) framelength / 8000);
printf("\n\nLength of speech file: %.1f s\n", length_file);
printf("Time to run G.711: %.2f s (%.2f %% of realtime)\n\n",
runtime,
(100 * runtime / length_file));
printf("---------------------END----------------------\n");
fclose(inp);
fclose(outp);
return 0;
}
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