vhook watermark patch by (Marcus Engene: ffmpeg, engene se)
[libav.git] / pktdumper.c
CommitLineData
0fa04b7f
FR
1#include <avformat.h>
2#include <limits.h>
3#include <fcntl.h>
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7#include <unistd.h>
8
9#define PKTFILESUFF "_%08Ld_%02d_%010Ld_%06d_%c.bin"
10
11static int usage(int ret)
12{
15b34f63
FR
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");
2d216336
FR
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");
15b34f63 18 return ret;
0fa04b7f
FR
19}
20
21int main(int argc, char **argv)
22{
15b34f63
FR
23 char fntemplate[PATH_MAX];
24 char pktfilename[PATH_MAX];
25 AVFormatContext *fctx;
26 AVPacket pkt;
27 int64_t pktnum = 0;
28 int64_t maxpkts = 0;
2d216336
FR
29 int dontquit = 0;
30 int nowrite = 0;
15b34f63
FR
31 int err;
32
2d216336
FR
33 if ((argc > 1) && !strncmp(argv[1], "-", 1)) {
34 if (strchr(argv[1], 'w'))
35 dontquit = 1;
36 if (strchr(argv[1], 'n'))
37 nowrite = 1;
38 argv++;
39 argc--;
40 }
15b34f63
FR
41 if (argc < 2)
42 return usage(1);
43 if (argc > 2)
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");
52 return usage(1);
53 }
54 if (strlen(fntemplate) + sizeof(PKTFILESUFF) >= PATH_MAX-1) {
55 fprintf(stderr, "filename too long\n");
56 return usage(1);
57 }
58 strcat(fntemplate, PKTFILESUFF);
59 printf("FNTEMPLATE: '%s'\n", fntemplate);
60
61 // register all file formats
62 av_register_all();
63
64 err = av_open_input_file(&fctx, argv[1], NULL, 0, NULL);
65 if (err < 0) {
66 fprintf(stderr, "av_open_input_file: error %d\n", err);
67 return 1;
68 }
69
70 err = av_find_stream_info(fctx);
71 if (err < 0) {
72 fprintf(stderr, "av_find_stream_info: error %d\n", err);
73 return 1;
74 }
75
76 av_init_packet(&pkt);
77
78 while ((err = av_read_frame(fctx, &pkt)) >= 0) {
79 int fd;
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);
2d216336
FR
83 if (!nowrite) {
84 fd = open(pktfilename, O_WRONLY|O_CREAT, 0644);
85 write(fd, pkt.data, pkt.size);
86 close(fd);
87 }
15b34f63
FR
88 pktnum++;
89 if (maxpkts && (pktnum >= maxpkts))
90 break;
91 }
92
2d216336
FR
93 while (dontquit)
94 sleep(60);
95
15b34f63 96 return 0;
0fa04b7f 97}