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| | 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 | #define AV_TS_MAX_STRING_SIZE 32 |
| | 30 | #define AV_TS_MAX_STRING_SIZE 32 |
| | 31 | |
| | 32 | /** |
| | 33 | * Fill the provided buffer with a string containing a timestamp |
| | 34 | * representation. |
| | 35 | * |
| | 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 |
| | 39 | */ |
| | 40 | static inline char *av_ts_make_string(char *buf, int64_t ts) |
| | 41 | { |
| | 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); |
| | 44 | return buf; |
| | 45 | } |
| | 46 | |
| | 47 | /** |
| | 48 | * Convenience macro, the return value should be used only directly in |
| | 49 | * function arguments but never stand-alone. |
| | 50 | */ |
| | 51 | #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) |
| | 52 | |
| | 53 | /** |
| | 54 | * Fill the provided buffer with a string containing a timestamp time |
| | 55 | * representation. |
| | 56 | * |
| | 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 |
| | 61 | */ |
| | 62 | static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) |
| | 63 | { |
| | 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); |
| | 66 | return buf; |
| | 67 | } |
| | 68 | |
| | 69 | /** |
| | 70 | * Convenience macro, the return value should be used only directly in |
| | 71 | * function arguments but never stand-alone. |
| | 72 | */ |
| | 73 | #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) |
| | 74 | |
| | 75 | #endif /* AVUTIL_TIMESTAMP_H */ |