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 file [maxpkts]\n");
19 int main(int argc, char **argv)
21 char fntemplate[PATH_MAX];
22 char pktfilename[PATH_MAX];
23 AVFormatContext *fctx;
32 maxpkts = atoi(argv[2]);
33 strncpy(fntemplate, argv[1], PATH_MAX-1);
34 if (strrchr(argv[1], '/'))
35 strncpy(fntemplate, strrchr(argv[1], '/')+1, PATH_MAX-1);
36 if (strrchr(fntemplate, '.'))
37 *strrchr(fntemplate, '.') = '\0';
38 if (strchr(fntemplate, '%')) {
39 fprintf(stderr, "can't use filenames containing '%%'\n");
42 if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= PATH_MAX-1) {
43 fprintf(stderr, "filename too long\n");
46 strcat(fntemplate, PKTFILESUFF);
47 printf("FNTEMPLATE: '%s'\n", fntemplate);
49 // register all file formats
52 err = av_open_input_file(&fctx, argv[1], NULL, 0, NULL);
54 fprintf(stderr, "av_open_input_file: error %d\n", err);
58 err = av_find_stream_info(fctx);
60 fprintf(stderr, "av_find_stream_info: error %d\n", err);
66 while ((err = av_read_frame(fctx, &pkt)) >= 0) {
68 snprintf(pktfilename, PATH_MAX-1, fntemplate, pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & PKT_FLAG_KEY)?'K':'_');
69 printf(PKTFILESUFF"\n", pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & PKT_FLAG_KEY)?'K':'_');
70 //printf("open(\"%s\")\n", pktfilename);
71 fd = open(pktfilename, O_WRONLY|O_CREAT, 0644);
72 write(fd, pkt.data, pkt.size);
75 if (maxpkts && (pktnum >= maxpkts))