d404fe35b2
Using VDPAU correctly means checking for preemption and possibly regenerating the context all the time. With the current API there is no context or other user-defined pointer and thus this in not possible during decoding unless using some hack like global variables. The need to reinitialize both surfaces and even function pointers makes handling preemption even more difficult. This patch introduces a new render2 function that gets both the AVCodecContext and AVFrame in addition, in both the user can store additional opaque data. This allows even advanced approaches like keeping a "generation counter" for the surfaces so they can be regenerated on the fly and efficiently. In addition, the function has a return value that will be passed through all the way instead of being silently ignored as for the current render function. Unfortunately the HWAccel API has no way of providing API/ABI compatibility, so a currently disallowed state (render pointer being NULL) is used to extend it. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
/*
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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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#ifndef AVCODEC_VERSION_H
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#define AVCODEC_VERSION_H
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/**
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* @file
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* @ingroup libavc
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* Libavcodec version macros.
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*/
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#include "libavutil/avutil.h"
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#define LIBAVCODEC_VERSION_MAJOR 55
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#define LIBAVCODEC_VERSION_MINOR 27
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#define LIBAVCODEC_VERSION_MICRO 100
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#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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LIBAVCODEC_VERSION_MINOR, \
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LIBAVCODEC_VERSION_MICRO)
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#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
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LIBAVCODEC_VERSION_MINOR, \
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LIBAVCODEC_VERSION_MICRO)
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#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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/**
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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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#ifndef FF_API_REQUEST_CHANNELS
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#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_ALLOC_CONTEXT
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#define FF_API_ALLOC_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_AVCODEC_OPEN
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#define FF_API_AVCODEC_OPEN (LIBAVCODEC_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_OLD_DECODE_AUDIO
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#define FF_API_OLD_DECODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_OLD_TIMECODE
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#define FF_API_OLD_TIMECODE (LIBAVCODEC_VERSION_MAJOR < 55)
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#endif
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#ifndef FF_API_OLD_ENCODE_AUDIO
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#define FF_API_OLD_ENCODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_OLD_ENCODE_VIDEO
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#define FF_API_OLD_ENCODE_VIDEO (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_CODEC_ID
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#define FF_API_CODEC_ID (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_AVCODEC_RESAMPLE
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#define FF_API_AVCODEC_RESAMPLE (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_DEINTERLACE
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#define FF_API_DEINTERLACE (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_DESTRUCT_PACKET
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#define FF_API_DESTRUCT_PACKET (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_GET_BUFFER
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#define FF_API_GET_BUFFER (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_MISSING_SAMPLE
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#define FF_API_MISSING_SAMPLE (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_LOWRES
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#define FF_API_LOWRES (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_CAP_VDPAU
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#define FF_API_CAP_VDPAU (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_BUFS_VDPAU
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#define FF_API_BUFS_VDPAU (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#ifndef FF_API_VOXWARE
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#define FF_API_VOXWARE (LIBAVCODEC_VERSION_MAJOR < 56)
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#endif
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#endif /* AVCODEC_VERSION_H */
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