mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-24 20:19:55 +00:00
0eec06ed87
These functions are using the POSIX clock_gettime() function with the CLOCK_MONOTONIC clock id. If these are not present on the targeted platform, the new functions will fallback on using the original realtime functions av_gettime() and av_usleep(). Monotonic support can be added on other platforms with their equivalent native system API eventually if possible. Whenever time is requested to measure relative time, the monotonic clock, when available, is superior to the system realtime clock because it is not affected by discontinuous jumps in the system time In a future step, offering the flexibility to let the user choose between rt and monotonic clock for avdevices packets will be investigated. It is very easy to experience the issues that this patch attempt to address by rewinding back in the past the system time while ffmpeg is running. this is breaking the ffmpeg report printing (ffmepg.c:print_report()) and the the rate emulator functionality (-re) without the patch. Signed-off-by: Olivier Langlois <olivier@trillion01.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
155 lines
4.5 KiB
C
155 lines
4.5 KiB
C
/*
|
|
* copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVUTIL_VERSION_H
|
|
#define AVUTIL_VERSION_H
|
|
|
|
#include "macros.h"
|
|
|
|
/**
|
|
* @defgroup version_utils Library Version Macros
|
|
*
|
|
* Useful to check and match library version in order to maintain
|
|
* backward compatibility.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
|
|
#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
|
|
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @ingroup lavu
|
|
* Libavutil version macros
|
|
*/
|
|
|
|
/**
|
|
* @defgroup lavu_ver Version and Build diagnostics
|
|
*
|
|
* Macros and function useful to check at compiletime and at runtime
|
|
* which version of libavutil is in use.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#define LIBAVUTIL_VERSION_MAJOR 52
|
|
#define LIBAVUTIL_VERSION_MINOR 84
|
|
#define LIBAVUTIL_VERSION_MICRO 100
|
|
|
|
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
|
|
LIBAVUTIL_VERSION_MINOR, \
|
|
LIBAVUTIL_VERSION_MICRO)
|
|
#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
|
|
LIBAVUTIL_VERSION_MINOR, \
|
|
LIBAVUTIL_VERSION_MICRO)
|
|
#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
|
|
|
|
#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
|
|
|
|
/**
|
|
* @}
|
|
*
|
|
* @defgroup depr_guards Deprecation guards
|
|
* FF_API_* defines may be placed below to indicate public API that will be
|
|
* dropped at a future version bump. The defines themselves are not part of
|
|
* the public API and may change, break or disappear at any time.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#ifndef FF_API_GET_BITS_PER_SAMPLE_FMT
|
|
#define FF_API_GET_BITS_PER_SAMPLE_FMT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_FIND_OPT
|
|
#define FF_API_FIND_OPT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_OLD_AVOPTIONS
|
|
#define FF_API_OLD_AVOPTIONS (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_PIX_FMT
|
|
#define FF_API_PIX_FMT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_CONTEXT_SIZE
|
|
#define FF_API_CONTEXT_SIZE (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_PIX_FMT_DESC
|
|
#define FF_API_PIX_FMT_DESC (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_AV_REVERSE
|
|
#define FF_API_AV_REVERSE (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_AUDIOCONVERT
|
|
#define FF_API_AUDIOCONVERT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_CPU_FLAG_MMX2
|
|
#define FF_API_CPU_FLAG_MMX2 (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_SAMPLES_UTILS_RETURN_ZERO
|
|
#define FF_API_SAMPLES_UTILS_RETURN_ZERO (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_LLS_PRIVATE
|
|
#define FF_API_LLS_PRIVATE (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_LLS1
|
|
#define FF_API_LLS1 (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_AVFRAME_LAVC
|
|
#define FF_API_AVFRAME_LAVC (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_VDPAU
|
|
#define FF_API_VDPAU (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_GET_CHANNEL_LAYOUT_COMPAT
|
|
#define FF_API_GET_CHANNEL_LAYOUT_COMPAT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_OLD_OPENCL
|
|
#define FF_API_OLD_OPENCL (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_XVMC
|
|
#define FF_API_XVMC (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_INTFLOAT
|
|
#define FF_API_INTFLOAT (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
#ifndef FF_API_OPT_TYPE_METADATA
|
|
#define FF_API_OPT_TYPE_METADATA (LIBAVUTIL_VERSION_MAJOR < 54)
|
|
#endif
|
|
|
|
#ifndef FF_CONST_AVUTIL53
|
|
#if LIBAVUTIL_VERSION_MAJOR >= 53
|
|
#define FF_CONST_AVUTIL53 const
|
|
#else
|
|
#define FF_CONST_AVUTIL53
|
|
#endif
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* AVUTIL_VERSION_H */
|
|
|