FFmpeg  1.2.12
timecode.h
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1 /*
2  * Copyright (c) 2006 Smartjog S.A.S, Baptiste Coudurier <baptiste.coudurier@gmail.com>
3  * Copyright (c) 2011-2012 Smartjog S.A.S, Clément Bœsch <clement.boesch@smartjog.com>
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 
27 #ifndef AVUTIL_TIMECODE_H
28 #define AVUTIL_TIMECODE_H
29 
30 #include <stdint.h>
31 #include "rational.h"
32 
33 #define AV_TIMECODE_STR_SIZE 16
34 
39 };
40 
41 typedef struct {
42  int start;
43  uint32_t flags;
44  AVRational rate;
45  unsigned fps;
46 } AVTimecode;
47 
56 int av_timecode_adjust_ntsc_framenum2(int framenum, int fps);
57 
71 uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum);
72 
85 char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum);
86 
96 char *av_timecode_make_smpte_tc_string(char *buf, uint32_t tcsmpte, int prevent_df);
97 
105 char *av_timecode_make_mpeg_tc_string(char *buf, uint32_t tc25bit);
106 
119 int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx);
120 
131 int av_timecode_init_from_string(AVTimecode *tc, AVRational rate, const char *str, void *log_ctx);
132 
139 
140 #endif /* AVUTIL_TIMECODE_H */