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04f3bd3496
This is an extended version of the AVFrame.opaque field, which can be used to attach arbitrary user information to an AVFrame. The usefulness of the opaque field is rather limited, because it can store only up to 32 bits of information (or 64 bit on 64 bit systems). It's not possible to set this field to a memory allocation, because there is no way to deallocate it correctly. The opaque_ref field circumvents this by letting the user set an AVBuffer, which makes the user data refcounted. Signed-off-by: Anton Khirnov <anton@khirnov.net>
118 lines
3.4 KiB
C
118 lines
3.4 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 55
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#define LIBAVUTIL_VERSION_MINOR 32
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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_VDPAU
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#define FF_API_VDPAU (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_XVMC
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#define FF_API_XVMC (LIBAVUTIL_VERSION_MAJOR < 56)
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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 < 56)
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#endif
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#ifndef FF_API_DLOG
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#define FF_API_DLOG (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_CRYPTO_CONTEXT
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#define FF_API_CRYPTO_CONTEXT (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_PLUS1_MINUS1
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#define FF_API_PLUS1_MINUS1 (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_ERROR_FRAME
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#define FF_API_ERROR_FRAME (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_VAAPI
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#define FF_API_VAAPI (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_PKT_PTS
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#define FF_API_PKT_PTS (LIBAVUTIL_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_CRYPTO_SIZE_T
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#define FF_API_CRYPTO_SIZE_T (LIBAVUTIL_VERSION_MAJOR < 56)
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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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