From 0fa04b7fde614c4d1778ecfc60bfbdb8c3ac8b1e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fran=C3=A7ois=20Revol?= Date: Tue, 15 Mar 2005 23:52:25 +0000 Subject: [PATCH] pktdumper debugging utility for demuxers. This tool dumps each AVPacket demuxed to a stamped file. make pktdumper LDFLAGS='-Llibavformat/ -lavformat' Originally committed as revision 4044 to svn://svn.ffmpeg.org/ffmpeg/trunk --- pktdumper.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 pktdumper.c diff --git a/pktdumper.c b/pktdumper.c new file mode 100644 index 0000000000..fd5ab812a3 --- /dev/null +++ b/pktdumper.c @@ -0,0 +1,80 @@ +#include +#include +#include +#include +#include +#include +#include + +#define PKTFILESUFF "_%08Ld_%02d_%010Ld_%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 `basename file.ext`_$PKTNUM_$STREAMINDEX_$STAMP_$SIZE_$FLAGS.bin\n"); + fprintf(stderr, "pktdumper file [maxpkts]\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 err; + + 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 & PKT_FLAG_KEY)?'K':'_'); + printf(PKTFILESUFF"\n", pktnum, pkt.stream_index, pkt.pts, pkt.size, (pkt.flags & PKT_FLAG_KEY)?'K':'_'); + //printf("open(\"%s\")\n", pktfilename); + fd = open(pktfilename, O_WRONLY|O_CREAT, 0644); + write(fd, pkt.data, pkt.size); + close(fd); + pktnum++; + if (maxpkts && (pktnum >= maxpkts)) + break; + } + + return 0; +}