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ffmpeg / libavcodec / vdpau.h @ ddb00ad1

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/*
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 * The Video Decode and Presentation API for UNIX (VDPAU) is used for
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 * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
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 *
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 * Copyright (C) 2008 NVIDIA
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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_VDPAU_H
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#define AVCODEC_VDPAU_H
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/**
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 * \defgroup Decoder VDPAU Decoder and Renderer
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 *
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 * VDPAU hardware acceleration has two modules
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 * - VDPAU decoding
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 * - VDPAU presentation
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 *
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 * The VDPAU decoding module parses all headers using FFmpeg
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 * parsing mechanisms and uses VDPAU for the actual decoding.
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 *
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 * As per the current implementation, the actual decoding
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 * and rendering (API calls) are done as part of the VDPAU
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 * presentation (vo_vdpau.c) module.
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 *
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 * \defgroup  VDPAU_Decoding VDPAU Decoding
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 * \ingroup Decoder
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 * @{
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 */
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#include <vdpau/vdpau.h>
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#include <vdpau/vdpau_x11.h>
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/** \brief The videoSurface is used for rendering. */
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#define FF_VDPAU_STATE_USED_FOR_RENDER 1
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/**
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 * \brief The videoSurface is needed for reference/prediction.
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 * The codec manipulates this.
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 */
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#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
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/**
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 * \brief This structure is used as a callback between the FFmpeg
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 * decoder (vd_) and presentation (vo_) module.
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 * This is used for defining a video frame containing surface,
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 * picture parameter, bitstream information etc which are passed
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 * between the FFmpeg decoder and its clients.
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 */
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struct vdpau_render_state {
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    VdpVideoSurface surface; ///< Used as rendered surface, never changed.
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    int state; ///< Holds FF_VDPAU_STATE_* values.
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    /** Describe size/location of the compressed video data.
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        Set to 0 when freeing bitstream_buffers. */
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    int bitstream_buffers_allocated;
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    int bitstream_buffers_used;
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    /** The user is responsible for freeing this buffer using av_freep(). */
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    VdpBitstreamBuffer *bitstream_buffers;
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    /** picture parameter information for all supported codecs */
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    union VdpPictureInfo {
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        VdpPictureInfoH264        h264;
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        VdpPictureInfoMPEG1Or2    mpeg;
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        VdpPictureInfoVC1          vc1;
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        VdpPictureInfoMPEG4Part2 mpeg4;
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    } info;
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};
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/* @}*/
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#endif /* AVCODEC_VDPAU_H */