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2f9b8bbd1f
If we want to be able to map between VAAPI and Vulkan (to do Vulkan filtering), we need to have matching formats on each side. The mappings here are not exact. In the same way that P010 is still mapped to full 16 bit formats, P012 has to be mapped that way as well. Similarly, VUYX has to be mapped to an alpha-equipped format, and XV36 has to be mapped to a fully 16bit alpha-equipped format. While Vulkan seems to fundamentally lack formats with an undefined, but physically present, alpha channel, it has have 10X6 and 12X4 formats that you could imagine using for P010, P012 and XV36, but these formats don't support the STORAGE usage flag. Today, hwcontext_vulkan requires all formats to be storable because it wants to be able to use them to create writable images. Until that changes, which might happen, we have to restrict the set of formats we use. Finally, when mapping a Vulkan image back to vaapi, I observed that the VK_FORMAT_R16G16B16A16_UNORM format we have to use for XV36 going to Vulkan is mapped to Y416 when going to vaapi (which makes sense as it's the exact matching format) so I had to add an entry for it even though we don't use it directly.
125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/*
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* copyright (c) 2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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/**
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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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#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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* @addtogroup version_utils
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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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* The FFmpeg libraries follow a versioning sheme very similar to
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* Semantic Versioning (http://semver.org/)
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* The difference is that the component called PATCH is called MICRO in FFmpeg
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* and its value is reset to 100 instead of 0 to keep it above or equal to 100.
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* Also we do not increase MICRO for every bugfix or change in git master.
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*
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* Prior to FFmpeg 3.2 point releases did not change any lib version number to
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* avoid aliassing different git master checkouts.
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* Starting with FFmpeg 3.2, the released library versions will occupy
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* a separate MAJOR.MINOR that is not used on the master development branch.
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* That is if we branch a release of master 55.10.123 we will bump to 55.11.100
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* for the release and master will continue at 55.12.100 after it. Each new
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* point release will then bump the MICRO improving the usefulness of the lib
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* versions.
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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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* Extract version components from the full ::AV_VERSION_INT int as returned
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* by functions like ::avformat_version() and ::avcodec_version()
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*/
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#define AV_VERSION_MAJOR(a) ((a) >> 16)
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#define AV_VERSION_MINOR(a) (((a) & 0x00FF00) >> 8)
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#define AV_VERSION_MICRO(a) ((a) & 0xFF)
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/**
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* @}
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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 57
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#define LIBAVUTIL_VERSION_MINOR 36
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#define LIBAVUTIL_VERSION_MICRO 101
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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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* @defgroup lavu_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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* @note, when bumping the major version it is recommended to manually
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* disable each FF_API_* in its own commit instead of disabling them all
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* at once through the bump. This improves the git bisect-ability of the change.
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*
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* @{
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*/
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#define FF_API_D2STR (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_DECLARE_ALIGNED (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_COLORSPACE_NAME (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_AV_MALLOCZ_ARRAY (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_FIFO_PEEK2 (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_FIFO_OLD_API (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_XVMC (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_OLD_CHANNEL_LAYOUT (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_AV_FOPEN_UTF8 (LIBAVUTIL_VERSION_MAJOR < 58)
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#define FF_API_PKT_DURATION (LIBAVUTIL_VERSION_MAJOR < 58)
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/**
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* @}
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* @}
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*/
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#endif /* AVUTIL_VERSION_H */
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