mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
2.4 KiB
75 lines
2.4 KiB
13 years ago
|
/*
|
||
|
|
* This file is part of FFmpeg.
|
||
|
|
*
|
||
|
|
* FFmpeg is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with FFmpeg; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* timestamp utils, mostly useful for debugging/logging purposes
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef AVUTIL_TIMESTAMP_H
|
||
|
|
#define AVUTIL_TIMESTAMP_H
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
|
||
|
|
#define AV_TS_MAX_STRING_SIZE 32
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fill the provided buffer with a string containing a timestamp
|
||
|
|
* representation.
|
||
|
|
*
|
||
|
|
* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
|
||
|
|
* @param ts the timestamp to represent
|
||
|
|
* @return the buffer in input
|
||
|
|
*/
|
||
|
|
static inline char *av_ts_make_string(char *buf, int64_t ts)
|
||
|
|
{
|
||
|
|
if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
|
||
|
|
else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64"", ts);
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Convenience macro, the return value should be used only directly in
|
||
|
|
* function arguments but never stand-alone.
|
||
|
|
*/
|
||
|
|
#define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fill the provided buffer with a string containing a timestamp time
|
||
|
|
* representation.
|
||
|
|
*
|
||
|
|
* @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
|
||
|
|
* @param ts the timestamp to represent
|
||
|
|
* @param tb the timebase of the timestamp
|
||
|
|
* @return the buffer in input
|
||
|
|
*/
|
||
|
|
static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb)
|
||
|
|
{
|
||
|
|
if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
|
||
|
|
else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts);
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Convenience macro, the return value should be used only directly in
|
||
|
|
* function arguments but never stand-alone.
|
||
|
|
*/
|
||
|
|
#define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb)
|
||
|
|
|
||
|
|
#endif /* AVUTIL_TIMESTAMP_H */
|