29 #define PKTFILESUFF "_%08"PRId64"_%02d_%010"PRId64"_%06d_%c.bin"
35 fprintf(stderr,
"dump (up to maxpkts) AVPackets as they are demuxed by libavformat.\n");
36 fprintf(stderr,
"each packet is dumped in its own file named like `basename file.ext`_$PKTNUM_$STREAMINDEX_$STAMP_$SIZE_$FLAGS.bin\n");
37 fprintf(stderr,
"pktdumper [-nw] file [maxpkts]\n");
38 fprintf(stderr,
"-n\twrite No file at all, only demux.\n");
39 fprintf(stderr,
"-w\tWait at end of processing instead of quitting.\n");
43 int main(
int argc,
char **argv)
45 char fntemplate[PATH_MAX];
46 char pktfilename[PATH_MAX];
55 if ((argc > 1) && !strncmp(argv[1],
"-", 1)) {
56 if (strchr(argv[1],
'w'))
58 if (strchr(argv[1],
'n'))
66 maxpkts = atoi(argv[2]);
67 strncpy(fntemplate, argv[1], PATH_MAX-1);
68 if (strrchr(argv[1],
'/'))
69 strncpy(fntemplate, strrchr(argv[1],
'/')+1, PATH_MAX-1);
70 if (strrchr(fntemplate,
'.'))
71 *strrchr(fntemplate,
'.') =
'\0';
72 if (strchr(fntemplate,
'%')) {
73 fprintf(stderr,
"can't use filenames containing '%%'\n");
76 if (strlen(fntemplate) +
sizeof(
PKTFILESUFF) >= PATH_MAX-1) {
77 fprintf(stderr,
"filename too long\n");
81 printf(
"FNTEMPLATE: '%s'\n", fntemplate);
88 fprintf(stderr,
"cannot open input: error %d\n", err);
94 fprintf(stderr,
"avformat_find_stream_info: error %d\n", err);
106 fd = open(pktfilename, O_WRONLY|O_CREAT, 0644);
107 err = write(fd, pkt.
data, pkt.
size);
109 fprintf(stderr,
"write: error %d\n", err);
116 if (maxpkts && (pktnum >= maxpkts))
int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
Open an input stream and read the header.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
static int usage(int ret)
void av_free_packet(AVPacket *pkt)
Free a packet.
int flags
A combination of AV_PKT_FLAG values.
static void close(AVCodecParserContext *s)
int main(int argc, char **argv)
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
Return the next frame of a stream.
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
Read packets of a media file to get stream information.
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
void av_register_all(void)
Initialize libavformat and register all the muxers, demuxers and protocols.
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...