repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * This file is part of FFmpeg. | |
| 3 | * | |
| 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. | |
| 8 | * | |
| 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. | |
| 13 | * | |
| 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 | |
| 17 | */ | |
| 18 | ||
| 19 | /** | |
| 20 | * @file | |
| 21 | * timestamp utils, mostly useful for debugging/logging purposes | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef AVUTIL_TIMESTAMP_H | |
| 25 | #define AVUTIL_TIMESTAMP_H | |
| 26 | ||
| 27 | #include "common.h" | |
| 28 | ||
| 29 | #if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64) | |
| 30 | #error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS | |
| 31 | #endif | |
| 32 | ||
| 33 | #define AV_TS_MAX_STRING_SIZE 32 | |
| 34 | ||
| 35 | /** | |
| 36 | * Fill the provided buffer with a string containing a timestamp | |
| 37 | * representation. | |
| 38 | * | |
| 39 | * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE | |
| 40 | * @param ts the timestamp to represent | |
| 41 | * @return the buffer in input | |
| 42 | */ | |
| 43 | static inline char *av_ts_make_string(char *buf, int64_t ts) | |
| 44 | { | |
| 45 | if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); | |
| 46 | else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64, ts); | |
| 47 | return buf; | |
| 48 | } | |
| 49 | ||
| 50 | /** | |
| 51 | * Convenience macro, the return value should be used only directly in | |
| 52 | * function arguments but never stand-alone. | |
| 53 | */ | |
| 54 | #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) | |
| 55 | ||
| 56 | /** | |
| 57 | * Fill the provided buffer with a string containing a timestamp time | |
| 58 | * representation. | |
| 59 | * | |
| 60 | * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE | |
| 61 | * @param ts the timestamp to represent | |
| 62 | * @param tb the timebase of the timestamp | |
| 63 | * @return the buffer in input | |
| 64 | */ | |
| 65 | static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) | |
| 66 | { | |
| 67 | if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); | |
| 68 | else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts); | |
| 69 | return buf; | |
| 70 | } | |
| 71 | ||
| 72 | /** | |
| 73 | * Convenience macro, the return value should be used only directly in | |
| 74 | * function arguments but never stand-alone. | |
| 75 | */ | |
| 76 | #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) | |
| 77 | ||
| 78 | #endif /* AVUTIL_TIMESTAMP_H */ |