0,0 → 1,137 |
/* |
* Copyright (c) 2005 Francois Revol |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg 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. |
* |
* FFmpeg 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 FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
#include "config.h" |
#include <limits.h> |
#include <fcntl.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#if HAVE_UNISTD_H |
#include <unistd.h> |
#endif |
#if HAVE_IO_H |
#include <io.h> |
#endif |
|
#include "libavutil/avstring.h" |
#include "libavutil/time.h" |
#include "libavformat/avformat.h" |
|
#define FILENAME_BUF_SIZE 4096 |
#define PKTFILESUFF "_%08" PRId64 "_%02d_%010" PRId64 "_%06d_%c.bin" |
|
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\n"); |
fprintf(stderr, "$(basename file.ext)_$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[FILENAME_BUF_SIZE]; |
char pktfilename[FILENAME_BUF_SIZE]; |
AVFormatContext *fctx = NULL; |
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]); |
av_strlcpy(fntemplate, argv[1], sizeof(fntemplate)); |
if (strrchr(argv[1], '/')) |
av_strlcpy(fntemplate, strrchr(argv[1], '/') + 1, sizeof(fntemplate)); |
if (strrchr(fntemplate, '.')) |
*strrchr(fntemplate, '.') = '\0'; |
if (strchr(fntemplate, '%')) { |
fprintf(stderr, "cannot use filenames containing '%%'\n"); |
return usage(1); |
} |
if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= sizeof(fntemplate) - 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 = avformat_open_input(&fctx, argv[1], NULL, NULL); |
if (err < 0) { |
fprintf(stderr, "cannot open input: error %d\n", err); |
return 1; |
} |
|
err = avformat_find_stream_info(fctx, NULL); |
if (err < 0) { |
fprintf(stderr, "avformat_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, sizeof(pktfilename), 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' : '_'); |
if (!nowrite) { |
fd = open(pktfilename, O_WRONLY | O_CREAT, 0644); |
err = write(fd, pkt.data, pkt.size); |
if (err < 0) { |
fprintf(stderr, "write: error %d\n", err); |
return 1; |
} |
close(fd); |
} |
av_free_packet(&pkt); |
pktnum++; |
if (maxpkts && (pktnum >= maxpkts)) |
break; |
} |
|
avformat_close_input(&fctx); |
|
while (donotquit) |
av_usleep(60 * 1000000); |
|
return 0; |
} |