mirror of https://github.com/FFmpeg/FFmpeg.git
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/*
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/**
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* @file |
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* timestamp utils, mostly useful for debugging/logging purposes |
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*/ |
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#ifndef AVUTIL_TIMESTAMP_H |
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#define AVUTIL_TIMESTAMP_H |
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#include "common.h" |
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#define AV_TS_MAX_STRING_SIZE 32 |
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#define AV_TS_MAX_STRING_SIZE 32 |
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/**
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* Fill the provided buffer with a string containing a timestamp |
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* representation. |
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* |
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* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
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* @param ts the timestamp to represent |
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* @return the buffer in input |
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*/ |
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static inline char *av_ts_make_string(char *buf, int64_t ts) |
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{ |
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if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
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else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64"", ts); |
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return buf; |
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} |
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/**
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* Convenience macro, the return value should be used only directly in |
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* function arguments but never stand-alone. |
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*/ |
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#define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) |
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/**
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* Fill the provided buffer with a string containing a timestamp time |
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* representation. |
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* |
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* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
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* @param ts the timestamp to represent |
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* @param tb the timebase of the timestamp |
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* @return the buffer in input |
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*/ |
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static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) |
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{ |
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if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
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else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts); |
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return buf; |
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} |
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/**
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* Convenience macro, the return value should be used only directly in |
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* function arguments but never stand-alone. |
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*/ |
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#define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) |
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#endif /* AVUTIL_TIMESTAMP_H */ |
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