seek regression tests
[libav.git] / tests / seek_test.c
CommitLineData
f97b7e66
MN
1/*
2 * Copyright (c) 2003 Fabrice Bellard
3 * Copyright (c) 2007 Michael Niedermayer
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21#include <stdlib.h>
22#include <stdio.h>
23
24#include "avformat.h"
25
26int main(int argc, char **argv)
27{
28 const char *filename;
29 AVFormatContext *ic;
30 int i, ret, stream_id;
31 int64_t timestamp;
32
33 /* initialize libavcodec, and register all codecs and formats */
34 av_register_all();
35
36 if (argc != 2) {
37 printf("usage: %s input_file\n"
38 "\n", argv[0]);
39 exit(1);
40 }
41
42 filename = argv[1];
43
44 /* allocate the media context */
45 ic = av_alloc_format_context();
46 if (!ic) {
47 fprintf(stderr, "Memory error\n");
48 exit(1);
49 }
50
51 ret = av_open_input_file(&ic, filename, NULL, 0, NULL);
52 if (ret < 0) {
53 fprintf(stderr, "cant open %s\n", filename);
54 exit(1);
55 }
56
57 ret = av_find_stream_info(ic);
58 if (ret < 0) {
59 fprintf(stderr, "%s: could not find codec parameters\n", filename);
60 exit(1);
61 }
62
63 for(i=0; ; i++){
64 AVPacket pkt;
65 AVStream *st;
66 ret= av_read_frame(ic, &pkt);
67 printf("ret:%2d", ret);
68 if(ret>=0){
69 st= ic->streams[pkt.stream_index];
70 printf(" st:%2d dts:%f pts:%f pos:%Ld size:%d flags:%d", pkt.stream_index, pkt.dts*av_q2d(st->time_base), pkt.pts*av_q2d(st->time_base), pkt.pos, pkt.size, pkt.flags);
71 }
72 printf("\n");
73
74 if(i>25) break;
75
76 stream_id= (i>>1)%(ic->nb_streams+1) - 1;
77 timestamp= (i*19362894167LL) % (4*AV_TIME_BASE) - AV_TIME_BASE;
78 if(stream_id>=0){
79 st= ic->streams[stream_id];
80 timestamp= av_rescale_q(timestamp, AV_TIME_BASE_Q, st->time_base);
81 }
82 ret = av_seek_frame(ic, stream_id, timestamp, (i&1)*AVSEEK_FLAG_BACKWARD);
83 printf("ret:%2d st:%2d ts:%f flags:%d\n", ret, stream_id, timestamp*(stream_id<0 ? 1.0/AV_TIME_BASE : av_q2d(st->time_base)), i&1);
84 }
85
86 return 0;
87}