9 #define PKTFILESUFF "_%08Ld_%02d_%010Ld_%06d_%c.bin"
11 static int usage(int ret)
13 fprintf(stderr, "dump (up to maxpkts) AVPackets as they are demuxed by libavformat.\n");
14 fprintf(stderr, "each packet is dumped in its own file named like `basename file.ext`_$PKTNUM_$STREAMINDEX_$STAMP_$SIZE_$FLAGS.bin\n");
15 fprintf(stderr, "pktdumper [-nw] file [maxpkts]\n");
16 fprintf(stderr, "-n\twrite No file at all, only demux.\n");
17 fprintf(stderr, "-w\tWait at end of processing instead of quitting.\n");
21 int main(int argc, char **argv)
23 char fntemplate[PATH_MAX];
24 char pktfilename[PATH_MAX];
25 AVFormatContext *fctx;
33 if ((argc > 1) && !strncmp(argv[1], "-", 1)) {
34 if (strchr(argv[1], 'w'))
36 if (strchr(argv[1], 'n'))
44 maxpkts = atoi(argv[2]);
45 strncpy(fntemplate, argv[1], PATH_MAX-1);
46 if (strrchr(argv[1], '/'))
47 strncpy(fntemplate, strrchr(argv[1], '/')+1, PATH_MAX-1);
48 if (strrchr(fntemplate, '.'))
49 *strrchr(fntemplate, '.') = '\0';
50 if (strchr(fntemplate, '%')) {
51 fprintf(stderr, "can't use filenames containing '%%'\n");
54 if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= PATH_MAX-1) {
55 fprintf(stderr, "filename too long\n");
58 strcat(fntemplate, PKTFILESUFF);
59 printf("FNTEMPLATE: '%s'\n", fntemplate);
61 // register all file formats
64 err = av_open_input_file(&fctx, argv[1], NULL, 0, NULL);
66 fprintf(stderr, "av_open_input_file: error %d\n", err);
70 err = av_find_stream_info(fctx);
72 fprintf(stderr, "av_find_stream_info: error %d\n", err);
78 while ((err = av_read_frame(fctx, &pkt)) >= 0) {
80 snprintf(pktfilename, PATH_MAX-1, fntemplate, pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & PKT_FLAG_KEY)?'K':'_');
81 printf(PKTFILESUFF"\n", pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & PKT_FLAG_KEY)?'K':'_');
82 //printf("open(\"%s\")\n", pktfilename);
84 fd = open(pktfilename, O_WRONLY|O_CREAT, 0644);
85 write(fd, pkt.data, pkt.size);
89 if (maxpkts && (pktnum >= maxpkts))