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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | /** |
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| 20 | * @file |
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| 21 | * timestamp utils, mostly useful for debugging/logging purposes |
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| 22 | */ |
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| 23 | |||
| 24 | #ifndef AVUTIL_TIMESTAMP_H |
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| 25 | #define AVUTIL_TIMESTAMP_H |
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| 26 | |||
| 27 | #include "common.h" |
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| 28 | |||
| 29 | #define AV_TS_MAX_STRING_SIZE 32 |
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| 30 | |||
| 31 | /** |
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| 32 | * Fill the provided buffer with a string containing a timestamp |
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| 33 | * representation. |
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| 34 | * |
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| 35 | * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
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| 36 | * @param ts the timestamp to represent |
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| 37 | * @return the buffer in input |
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| 38 | */ |
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| 39 | static inline char *av_ts_make_string(char *buf, int64_t ts) |
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| 40 | { |
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| 41 | if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
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| 42 | else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64, ts); |
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| 43 | return buf; |
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| 44 | } |
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| 45 | |||
| 46 | /** |
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| 47 | * Convenience macro, the return value should be used only directly in |
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| 48 | * function arguments but never stand-alone. |
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| 49 | */ |
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| 50 | #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) |
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| 51 | |||
| 52 | /** |
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| 53 | * Fill the provided buffer with a string containing a timestamp time |
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| 54 | * representation. |
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| 55 | * |
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| 56 | * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
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| 57 | * @param ts the timestamp to represent |
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| 58 | * @param tb the timebase of the timestamp |
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| 59 | * @return the buffer in input |
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| 60 | */ |
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| 61 | static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) |
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| 62 | { |
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| 63 | if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
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| 64 | else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts); |
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| 65 | return buf; |
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| 66 | } |
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| 67 | |||
| 68 | /** |
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| 69 | * Convenience macro, the return value should be used only directly in |
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| 70 | * function arguments but never stand-alone. |
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| 71 | */ |
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| 72 | #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) |
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| 73 | |||
| 74 | #endif /* AVUTIL_TIMESTAMP_H */ |