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1 | /* |
2 | * Copyright (c) 2013 Nicolas George | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public License | |
8 | * as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public License | |
17 | * along with FFmpeg; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "config.h" | |
22 | #if HAVE_UNISTD_H | |
23 | #include <unistd.h> /* getopt */ | |
24 | #endif | |
25 | ||
26 | #include "libavformat/avformat.h" | |
27 | #include "libavutil/timestamp.h" | |
28 | ||
29 | #if !HAVE_GETOPT | |
30 | #include "compat/getopt.c" | |
31 | #endif | |
32 | ||
33 | static void usage(int ret) | |
34 | { | |
35 | fprintf(ret ? stderr : stdout, | |
36 | "Usage: seek_print file [command ...]\n" | |
37 | "Commands:\n" | |
38 | " read\n" | |
39 | " seek:stream:min_ts:ts:max_ts:flags\n" | |
40 | ); | |
41 | exit(ret); | |
42 | } | |
43 | ||
44 | int main(int argc, char **argv) | |
45 | { | |
46 | int opt, ret, stream, flags; | |
47 | const char *filename; | |
48 | AVFormatContext *avf = NULL; | |
49 | int64_t min_ts, max_ts, ts; | |
50 | AVPacket packet; | |
51 | ||
52 | while ((opt = getopt(argc, argv, "h")) != -1) { | |
53 | switch (opt) { | |
54 | case 'h': | |
55 | usage(0); | |
56 | default: | |
57 | usage(1); | |
58 | } | |
59 | } | |
60 | argc -= optind; | |
61 | argv += optind; | |
62 | if (!argc) | |
63 | usage(1); | |
64 | filename = *argv; | |
65 | argv++; | |
66 | argc--; | |
67 | ||
68 | av_register_all(); | |
69 | if ((ret = avformat_open_input(&avf, filename, NULL, NULL)) < 0) { | |
70 | fprintf(stderr, "%s: %s\n", filename, av_err2str(ret)); | |
71 | return 1; | |
72 | } | |
73 | if ((ret = avformat_find_stream_info(avf, NULL)) < 0) { | |
74 | fprintf(stderr, "%s: could not find codec parameters: %s\n", filename, | |
75 | av_err2str(ret)); | |
76 | return 1; | |
77 | } | |
78 | ||
79 | for (; argc; argc--, argv++) { | |
80 | if (!strcmp(*argv, "read")) { | |
81 | ret = av_read_frame(avf, &packet); | |
82 | if (ret < 0) { | |
83 | printf("read: %d (%s)\n", ret, av_err2str(ret)); | |
84 | } else { | |
85 | AVRational *tb = &avf->streams[packet.stream_index]->time_base; | |
86 | printf("read: %d size=%d stream=%d dts=%s (%s) pts=%s (%s)\n", | |
87 | ret, packet.size, packet.stream_index, | |
88 | av_ts2str(packet.dts), av_ts2timestr(packet.dts, tb), | |
89 | av_ts2str(packet.pts), av_ts2timestr(packet.pts, tb)); | |
90 | av_free_packet(&packet); | |
91 | } | |
92 | } else if (sscanf(*argv, "seek:%i:%"SCNi64":%"SCNi64":%"SCNi64":%i", | |
93 | &stream, &min_ts, &ts, &max_ts, &flags) == 5) { | |
94 | ret = avformat_seek_file(avf, stream, min_ts, ts, max_ts, flags); | |
95 | printf("seek: %d (%s)\n", ret, av_err2str(ret)); | |
96 | } else { | |
97 | fprintf(stderr, "'%s': unknown command\n", *argv); | |
98 | return 1; | |
99 | } | |
100 | } | |
101 | ||
102 | avformat_close_input(&avf); | |
103 | ||
104 | return 0; | |
105 | } |