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PATH: usr / include / ffmpeg / libavutil

/*
 * 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"

#if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64)
#error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS
#endif

#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 */

[-] dict.h [edit]
[-] md5.h [edit]
[-] file.h [edit]
[-] version.h [edit]
[-] eval.h [edit]
[-] aes.h [edit]
[-] sha512.h [edit]
[-] replaygain.h [edit]
[-] samplefmt.h [edit]
[-] threadmessage.h [edit]
[-] motion_vector.h [edit]
[-] pixdesc.h [edit]
[-] old_pix_fmts.h [edit]
[-] intreadwrite.h [edit]
[-] tea.h [edit]
[+] ..
[-] base64.h [edit]
[-] stereo3d.h [edit]
[-] avassert.h [edit]
[-] opt.h [edit]
[-] mem.h [edit]
[-] parseutils.h [edit]
[-] camellia.h [edit]
[-] random_seed.h [edit]
[-] cast5.h [edit]
[-] bswap.h [edit]
[-] pixelutils.h [edit]
[-] attributes.h [edit]
[-] log.h [edit]
[-] avstring.h [edit]
[-] imgutils.h [edit]
[-] adler32.h [edit]
[-] crc.h [edit]
[-] time.h [edit]
[-] audio_fifo.h [edit]
[-] hash.h [edit]
[-] intfloat.h [edit]
[-] timecode.h [edit]
[-] lzo.h [edit]
[-] ffversion.h [edit]
[-] frame.h [edit]
[-] hmac.h [edit]
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[-] rational.h [edit]
[-] avconfig.h [edit]
[-] downmix_info.h [edit]
[-] display.h [edit]
[-] error.h [edit]
[-] twofish.h [edit]
[-] pixfmt.h [edit]
[-] common.h [edit]
[-] avutil.h [edit]
[-] audioconvert.h [edit]
[-] channel_layout.h [edit]
[-] macros.h [edit]
[-] timestamp.h [edit]
[-] mathematics.h [edit]
[-] sha.h [edit]
[-] ripemd.h [edit]
[-] blowfish.h [edit]
[-] fifo.h [edit]
[-] buffer.h [edit]