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Initial support for opus_enc/opus_dec

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This commit is contained in:
Jean-Marc Valin 2011-01-31 15:24:42 -05:00
parent 01b15eb259
commit cf60e7adec
3 changed files with 268 additions and 1 deletions
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9
src/Makefile.am
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@ -8,6 +8,13 @@ noinst_HEADERS = opus_decoder.h opus_encoder.h
pkginclude_HEADERS = opus.h
noinst_PROGRAMS = test_opus
noinst_PROGRAMS = test_opus opus_enc opus_dec
test_opus_SOURCES = test_opus.c $(top_srcdir)/silk/test/SKP_debug.c
test_opus_LDADD = libietfcodec.la $(top_builddir)/celt/libcelt/libcelt0.la $(top_builddir)/silk/libSKP_SILK_SDK.la
opus_enc_SOURCES = opus_enc.c $(top_srcdir)/silk/test/SKP_debug.c
opus_enc_LDADD = libietfcodec.la $(top_builddir)/celt/libcelt/libcelt0.la $(top_builddir)/silk/libSKP_SILK_SDK.la
opus_dec_SOURCES = opus_dec.c $(top_srcdir)/silk/test/SKP_debug.c
opus_dec_LDADD = libietfcodec.la $(top_builddir)/celt/libcelt/libcelt0.la $(top_builddir)/silk/libSKP_SILK_SDK.la

116
src/opus_dec.c Normal file
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@ -0,0 +1,116 @@
/* Copyright (c) 2007-2008 CSIRO
Copyright (c) 2007-2009 Xiph.Org Foundation
Written by Jean-Marc Valin */
/*
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of the Xiph.org Foundation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "opus.h"
#define MAX_PACKET 1275
int main(int argc, char *argv[])
{
int err;
char *inFile, *outFile;
FILE *fin, *fout;
OpusDecoder *dec;
int len;
int frame_size, channels;
int bytes_per_packet;
unsigned char data[MAX_PACKET];
int rate;
int loss = 0;
int count = 0;
int stop=0;
int vbr=0;
int tot_read=0;
short *in, *out;
int mode=MODE_HYBRID;
double bits=0;
if (argc != 6 && argc != 7)
{
fprintf (stderr, "Usage: test_opus <rate (kHz)> <channels> <frame size> "
" <bytes per packet> [<VBR rate (kb/s)>] [<packet loss rate>] "
"<input> <output>\n");
return 1;
}
rate = atoi(argv[1]);
channels = atoi(argv[2]);
frame_size = atoi(argv[3]);
if (argc >= 7)
loss = atoi(argv[4]);
inFile = argv[argc-2];
fin = fopen(inFile, "rb");
if (!fin)
{
fprintf (stderr, "Could not open input file %s\n", argv[argc-2]);
return 1;
}
outFile = argv[argc-1];
fout = fopen(outFile, "wb+");
if (!fout)
{
fprintf (stderr, "Could not open output file %s\n", argv[argc-1]);
return 1;
}
dec = opus_decoder_create(rate, channels);
out = (short*)malloc(frame_size*channels*sizeof(short));
while (!stop)
{
len = ((fgetc(fin)<<8)&0xFF00) | (fgetc(fin)&0xFF);
if (feof(fin) || len>MAX_PACKET)
break;
bits += len*8;
err = fread(data, 1, len, fin);
opus_decode(dec, rand()%100<loss ? NULL : data, len, out, frame_size);
count++;
fwrite(out, sizeof(short), frame_size*channels, fout);
}
fprintf (stderr, "average bit-rate: %f kb/s\n", bits*rate/(frame_size*(double)count));
opus_decoder_destroy(dec);
fclose(fin);
fclose(fout);
free(in);
free(out);
return 0;
}

144
src/opus_enc.c Normal file
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@ -0,0 +1,144 @@
/* Copyright (c) 2007-2008 CSIRO
Copyright (c) 2007-2009 Xiph.Org Foundation
Written by Jean-Marc Valin */
/*
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of the Xiph.org Foundation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "opus.h"
#define MAX_PACKET 1024
int main(int argc, char *argv[])
{
int err;
char *inFile, *outFile;
FILE *fin, *fout;
OpusEncoder *enc;
int len;
int frame_size, channels;
int bytes_per_packet;
unsigned char data[MAX_PACKET];
int rate;
int count = 0;
int stop=0;
int vbr=0;
int tot_read=0, tot_written=0;
short *in, *out;
int mode=MODE_HYBRID;
double bits=0;
if (argc != 9 && argc != 8 && argc != 7)
{
fprintf (stderr, "Usage: test_opus <rate (kHz)> <channels> <frame size> "
" <bytes per packet> [<VBR rate (kb/s)>] [<packet loss rate>] "
"<input> <output>\n");
return 1;
}
rate = atoi(argv[1]);
channels = atoi(argv[2]);
frame_size = atoi(argv[3]);
bytes_per_packet = atoi(argv[4]);
if (argc >= 8)
vbr = atoi(argv[5]);
if (bytes_per_packet < 0 || bytes_per_packet > MAX_PACKET)
{
fprintf (stderr, "bytes per packet must be between 0 and %d\n",
MAX_PACKET);
return 1;
}
inFile = argv[argc-2];
fin = fopen(inFile, "rb");
if (!fin)
{
fprintf (stderr, "Could not open input file %s\n", argv[argc-2]);
return 1;
}
outFile = argv[argc-1];
fout = fopen(outFile, "wb+");
if (!fout)
{
fprintf (stderr, "Could not open output file %s\n", argv[argc-1]);
return 1;
}
enc = opus_encoder_create(rate, channels);
mode = MODE_HYBRID;
opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(BANDWIDTH_FULLBAND));
opus_encoder_ctl(enc, OPUS_SET_MODE(mode));
if (vbr)
opus_encoder_ctl(enc, OPUS_SET_VBR_RATE(vbr));
in = (short*)malloc(frame_size*channels*sizeof(short));
while (!stop)
{
int write_samples;
err = fread(in, sizeof(short), frame_size*channels, fin);
tot_read += err;
if (err < frame_size*channels)
{
int i;
for (i=err;i<frame_size*channels;i++)
in[i] = 0;
stop = 1;
}
len = opus_encode(enc, in, frame_size, data, bytes_per_packet);
if (len <= 0)
{
fprintf (stderr, "opus_encode() returned %d\n", len);
return 1;
}
bits += len*8;
count++;
fputc((len>>8)&0xFF, fout);
fputc((len)&0xFF, fout);
fwrite(data, 1, len, fout);
}
fprintf (stderr, "average bit-rate: %f kb/s\n", bits*rate/(frame_size*(double)count));
opus_encoder_destroy(enc);
fclose(fin);
fclose(fout);
free(in);
free(out);
return 0;
}