ref: 1a113a148938459c1f6e1b8b89431c46be8eef1e
dir: /src/repacketizer_demo.c/
/* Copyright (c) 2011 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 Internet Society, IETF or IETF Trust, nor the
names of specific 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 COPYRIGHT OWNER
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 "opus.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_PACKETOUT 32000
void usage(char *argv0)
{
fprintf(stderr, "usage: %s [options] input_file output_file\n", argv0);
}
static void int_to_char(opus_uint32 i, unsigned char ch[4])
{
ch[0] = i>>24;
ch[1] = (i>>16)&0xFF;
ch[2] = (i>>8)&0xFF;
ch[3] = i&0xFF;
}
static opus_uint32 char_to_int(unsigned char ch[4])
{
return ((opus_uint32)ch[0]<<24) | ((opus_uint32)ch[1]<<16)
| ((opus_uint32)ch[2]<< 8) | (opus_uint32)ch[3];
}
int main(int argc, char *argv[])
{
int i, eof=0;
FILE *fin, *fout;
unsigned char packets[48][1500];
int len[48];
int rng[48];
OpusRepacketizer *rp;
unsigned char output_packet[MAX_PACKETOUT];
int merge = 1, split=0;
if (argc < 3)
{
usage(argv[0]);
return 1;
}
for (i=1;i<argc-2;i++)
{
if (strcmp(argv[i], "-merge")==0)
{
merge = atoi(argv[i+1]);
if(merge<1)
{
fprintf(stderr, "-merge parameter must be at least 1.\n");
return 1;
}
i++;
} else if (strcmp(argv[i], "-split")==0)
split = 1;
else
{
fprintf(stderr, "Unknown option: %s\n", argv[i]);
usage(argv[0]);
return 1;
}
}
fin = fopen(argv[argc-2], "r");
if(fin==NULL)
{
fprintf(stderr, "Error opening input file: %s\n", argv[argc-2]);
return 1;
}
fout = fopen(argv[argc-1], "w");
if(fout==NULL)
{
fprintf(stderr, "Error opening output file: %s\n", argv[argc-1]);
fclose(fin);
return 1;
}
rp = opus_repacketizer_create();
while (!eof)
{
int err;
int nb_packets=merge;
opus_repacketizer_init(rp);
for (i=0;i<nb_packets;i++)
{
unsigned char ch[4];
err = fread(ch, 1, 4, fin);
len[i] = char_to_int(ch);
/*fprintf(stderr, "in len = %d\n", len[i]);*/
if (len[i]>1500 || len[i]<0)
{
if (feof(fin))
{
eof = 1;
} else {
fprintf(stderr, "Invalid payload length\n");
fclose(fin);
fclose(fout);
return 1;
}
break;
}
err = fread(ch, 1, 4, fin);
rng[i] = char_to_int(ch);
err = fread(packets[i], 1, len[i], fin);
if (feof(fin))
{
eof = 1;
break;
}
err = opus_repacketizer_cat(rp, packets[i], len[i]);
if (err!=OPUS_OK)
{
fprintf(stderr, "opus_repacketizer_cat() failed: %s\n", opus_strerror(err));
break;
}
}
nb_packets = i;
if (eof)
break;
if (!split)
{
err = opus_repacketizer_out(rp, output_packet, MAX_PACKETOUT);
if (err>0) {
unsigned char int_field[4];
int_to_char(err, int_field);
fwrite(int_field, 1, 4, fout);
int_to_char(rng[nb_packets-1], int_field);
fwrite(int_field, 1, 4, fout);
fwrite(output_packet, 1, err, fout);
/*fprintf(stderr, "out len = %d\n", err);*/
} else {
fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err));
}
} else {
int nb_frames = opus_repacketizer_get_nb_frames(rp);
for (i=0;i<nb_frames;i++)
{
err = opus_repacketizer_out_range(rp, i, i+1, output_packet, MAX_PACKETOUT);
if (err>0) {
unsigned char int_field[4];
int_to_char(err, int_field);
fwrite(int_field, 1, 4, fout);
if (i==nb_frames-1)
int_to_char(rng[nb_packets-1], int_field);
else
int_to_char(0, int_field);
fwrite(int_field, 1, 4, fout);
fwrite(output_packet, 1, err, fout);
/*fprintf(stderr, "out len = %d\n", err);*/
} else {
fprintf(stderr, "opus_repacketizer_out() failed: %s\n", opus_strerror(err));
}
}
}
}
fclose(fin);
fclose(fout);
return 0;
}