2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 * timestamp utils, mostly useful for debugging/logging purposes
24 #ifndef AVUTIL_TIMESTAMP_H
25 #define AVUTIL_TIMESTAMP_H
29 #define AV_TS_MAX_STRING_SIZE 32
30 #define AV_TS_MAX_STRING_SIZE 32
33 * Fill the provided buffer with a string containing a timestamp
36 * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
37 * @param ts the timestamp to represent
38 * @return the buffer in input
40 static inline char *av_ts_make_string(char *buf, int64_t ts)
42 if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
43 else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64"", ts);
48 * Convenience macro, the return value should be used only directly in
49 * function arguments but never stand-alone.
51 #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)
54 * Fill the provided buffer with a string containing a timestamp time
57 * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
58 * @param ts the timestamp to represent
59 * @param tb the timebase of the timestamp
60 * @return the buffer in input
62 static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb)
64 if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
65 else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts);
70 * Convenience macro, the return value should be used only directly in
71 * function arguments but never stand-alone.
73 #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb)
75 #endif /* AVUTIL_TIMESTAMP_H */