mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-30 11:22:14 +00:00
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
#include "timestamp.h"
|
|
|
|
char *av_ts_make_time_string2(char *buf, int64_t ts, AVRational tb)
|
|
{
|
|
if (ts == AV_NOPTS_VALUE) {
|
|
snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
|
|
} else {
|
|
double val = av_q2d(tb) * ts;
|
|
double log = (fpclassify(val) == FP_ZERO ? -INFINITY : floor(log10(fabs(val))));
|
|
int precision = (isfinite(log) && log < 0) ? -log + 5 : 6;
|
|
int last = snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.*f", precision, val);
|
|
last = FFMIN(last, AV_TS_MAX_STRING_SIZE - 1) - 1;
|
|
for (; last && buf[last] == '0'; last--);
|
|
for (; last && buf[last] != 'f' && (buf[last] < '0' || buf[0] > '9'); last--);
|
|
buf[last + 1] = '\0';
|
|
}
|
|
return buf;
|
|
}
|