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1bd0bdcdc2
Since av_gettime() is used in a number of places where actual
real time clock is required, the monotonic clock introduced in
ebef9f5a5 would have consequences that are hard to handle. Instead
split it into a separate function that can be used in the cases
where only relative time is desired.
On platform where no monotonic clock is available, the difference
between the two av_gettime functions is not clear, and one could
mistakenly use the relative clock where an absolute one is
required. Therefore add an offset, to make it evident that the
time returned from av_gettime_relative never is actual current
real time, even though it is based on av_gettime.
Based on a patch by Olivier Langlois.
Signed-off-by: Martin Storsjö <martin@martin.st>
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_VERSION_H
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#define AVUTIL_VERSION_H
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#include "macros.h"
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/**
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* @defgroup version_utils Library Version Macros
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*
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* Useful to check and match library version in order to maintain
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* backward compatibility.
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*
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* @{
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*/
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#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
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#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
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#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
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/**
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* @}
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*/
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/**
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* @file
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* @ingroup lavu
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* Libavutil version macros
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*/
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/**
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* @defgroup lavu_ver Version and Build diagnostics
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*
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* Macros and function useful to check at compiletime and at runtime
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* which version of libavutil is in use.
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*
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* @{
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*/
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#define LIBAVUTIL_VERSION_MAJOR 54
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#define LIBAVUTIL_VERSION_MINOR 5
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#define LIBAVUTIL_VERSION_MICRO 0
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#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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LIBAVUTIL_VERSION_MINOR, \
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LIBAVUTIL_VERSION_MICRO)
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#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
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LIBAVUTIL_VERSION_MINOR, \
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LIBAVUTIL_VERSION_MICRO)
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#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
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#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
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/**
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* @}
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*
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* @defgroup depr_guards Deprecation guards
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* FF_API_* defines may be placed below to indicate public API that will be
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* dropped at a future version bump. The defines themselves are not part of
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* the public API and may change, break or disappear at any time.
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*
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* @{
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*/
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#ifndef FF_API_PIX_FMT
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#define FF_API_PIX_FMT (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_CONTEXT_SIZE
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#define FF_API_CONTEXT_SIZE (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_PIX_FMT_DESC
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#define FF_API_PIX_FMT_DESC (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_AV_REVERSE
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#define FF_API_AV_REVERSE (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_AUDIOCONVERT
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#define FF_API_AUDIOCONVERT (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_CPU_FLAG_MMX2
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#define FF_API_CPU_FLAG_MMX2 (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_LLS_PRIVATE
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#define FF_API_LLS_PRIVATE (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_AVFRAME_LAVC
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#define FF_API_AVFRAME_LAVC (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_VDPAU
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#define FF_API_VDPAU (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_XVMC
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#define FF_API_XVMC (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_OPT_TYPE_METADATA
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#define FF_API_OPT_TYPE_METADATA (LIBAVUTIL_VERSION_MAJOR < 55)
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#endif
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/**
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* @}
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*/
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#endif /* AVUTIL_VERSION_H */
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