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/*---------------------------------------------------------------------------*\
FILE........: c2dec.c
AUTHOR......: David Rowe
DATE CREATED: 23/8/2010
Decodes a file of bits to a file of raw speech samples using codec2.
\*---------------------------------------------------------------------------*/
/*
Copyright (C) 2010 David Rowe
All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License version 2.1, as
published by the Free Software Foundation. This program is
distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "codec2.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#define BITS_SIZE ((CODEC2_BITS_PER_FRAME + 7) / 8)
int main(int argc, char *argv[])
{
void *codec2;
FILE *fin;
FILE *fout;
short buf[CODEC2_SAMPLES_PER_FRAME];
unsigned char bits[BITS_SIZE];
if (argc != 3) {
printf("usage: %s InputBitFile OutputRawSpeechFile\n", argv[0]);
exit(1);
}
if (strcmp(argv[1], "-") == 0) fin = stdin;
else if ( (fin = fopen(argv[1],"rb")) == NULL ) {
fprintf(stderr, "Error opening input bit file: %s: %s.\n",
argv[1], strerror(errno));
exit(1);
}
if (strcmp(argv[2], "-") == 0) fout = stdout;
else if ( (fout = fopen(argv[2],"wb")) == NULL ) {
fprintf(stderr, "Error opening output speech file: %s: %s.\n",
argv[2], strerror(errno));
exit(1);
}
codec2 = codec2_create();
while(fread(bits, sizeof(char), BITS_SIZE, fin) == BITS_SIZE) {
codec2_decode(codec2, buf, bits);
fwrite(buf, sizeof(short), CODEC2_SAMPLES_PER_FRAME, fout);
//if this is in a pipeline, we probably don't want the usual
//buffering to occur
if (fout == stdout) fflush(stdout);
if (fin == stdin) fflush(stdin);
}
codec2_destroy(codec2);
fclose(fin);
fclose(fout);
return 0;
}
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