mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-26 17:32:06 +00:00
123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 2005 Francois Revol
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <limits.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "libavformat/avformat.h"
|
|
|
|
#define PKTFILESUFF "_%08"PRId64"_%02d_%010"PRId64"_%06d_%c.bin"
|
|
|
|
#undef strcat
|
|
|
|
static int usage(int ret)
|
|
{
|
|
fprintf(stderr, "dump (up to maxpkts) AVPackets as they are demuxed by libavformat.\n");
|
|
fprintf(stderr, "each packet is dumped in its own file named like `basename file.ext`_$PKTNUM_$STREAMINDEX_$STAMP_$SIZE_$FLAGS.bin\n");
|
|
fprintf(stderr, "pktdumper [-nw] file [maxpkts]\n");
|
|
fprintf(stderr, "-n\twrite No file at all, only demux.\n");
|
|
fprintf(stderr, "-w\tWait at end of processing instead of quitting.\n");
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char fntemplate[PATH_MAX];
|
|
char pktfilename[PATH_MAX];
|
|
AVFormatContext *fctx;
|
|
AVPacket pkt;
|
|
int64_t pktnum = 0;
|
|
int64_t maxpkts = 0;
|
|
int donotquit = 0;
|
|
int nowrite = 0;
|
|
int err;
|
|
|
|
if ((argc > 1) && !strncmp(argv[1], "-", 1)) {
|
|
if (strchr(argv[1], 'w'))
|
|
donotquit = 1;
|
|
if (strchr(argv[1], 'n'))
|
|
nowrite = 1;
|
|
argv++;
|
|
argc--;
|
|
}
|
|
if (argc < 2)
|
|
return usage(1);
|
|
if (argc > 2)
|
|
maxpkts = atoi(argv[2]);
|
|
strncpy(fntemplate, argv[1], PATH_MAX-1);
|
|
if (strrchr(argv[1], '/'))
|
|
strncpy(fntemplate, strrchr(argv[1], '/')+1, PATH_MAX-1);
|
|
if (strrchr(fntemplate, '.'))
|
|
*strrchr(fntemplate, '.') = '\0';
|
|
if (strchr(fntemplate, '%')) {
|
|
fprintf(stderr, "can't use filenames containing '%%'\n");
|
|
return usage(1);
|
|
}
|
|
if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= PATH_MAX-1) {
|
|
fprintf(stderr, "filename too long\n");
|
|
return usage(1);
|
|
}
|
|
strcat(fntemplate, PKTFILESUFF);
|
|
printf("FNTEMPLATE: '%s'\n", fntemplate);
|
|
|
|
// register all file formats
|
|
av_register_all();
|
|
|
|
err = av_open_input_file(&fctx, argv[1], NULL, 0, NULL);
|
|
if (err < 0) {
|
|
fprintf(stderr, "av_open_input_file: error %d\n", err);
|
|
return 1;
|
|
}
|
|
|
|
err = av_find_stream_info(fctx);
|
|
if (err < 0) {
|
|
fprintf(stderr, "av_find_stream_info: error %d\n", err);
|
|
return 1;
|
|
}
|
|
|
|
av_init_packet(&pkt);
|
|
|
|
while ((err = av_read_frame(fctx, &pkt)) >= 0) {
|
|
int fd;
|
|
snprintf(pktfilename, PATH_MAX-1, fntemplate, pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & AV_PKT_FLAG_KEY)?'K':'_');
|
|
printf(PKTFILESUFF"\n", pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & AV_PKT_FLAG_KEY)?'K':'_');
|
|
//printf("open(\"%s\")\n", pktfilename);
|
|
if (!nowrite) {
|
|
fd = open(pktfilename, O_WRONLY|O_CREAT, 0644);
|
|
write(fd, pkt.data, pkt.size);
|
|
close(fd);
|
|
}
|
|
av_free_packet(&pkt);
|
|
pktnum++;
|
|
if (maxpkts && (pktnum >= maxpkts))
|
|
break;
|
|
}
|
|
|
|
av_close_input_file(fctx);
|
|
|
|
while (donotquit)
|
|
sleep(60);
|
|
|
|
return 0;
|
|
}
|