/*

 * 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;

}