/*
  * DXVA2 HW acceleration
  *
  * copyright (c) 2009 Laurent Aimar
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 

 #ifndef AVCODEC_DXVA2_H
 #define AVCODEC_DXVA2_H

 /**
  * @file
  * @ingroup lavc_codec_hwaccel_dxva2
  * Public libavcodec DXVA2 header.
  */
 

 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602

 #undef _WIN32_WINNT

 #define _WIN32_WINNT 0x0602

 #endif
 

 #include <stdint.h>

 #include <d3d9.h>

 #include <dxva2api.h>
 

 /**
  * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
  * @ingroup lavc_codec_hwaccel
  *
  * @{
  */
 

 #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards

 #define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO    2 ///< Work around for DXVA2 and old Intel GPUs with ClearVideo interface

 /**
  * This structure is used to provides the necessary configurations and data
  * to the DXVA2 FFmpeg HWAccel implementation.
  *
  * The application must make it available as AVCodecContext.hwaccel_context.
  */
 struct dxva_context {
     /**
      * DXVA2 decoder object
      */
     IDirectXVideoDecoder *decoder;
 
     /**
      * DXVA2 configuration used to create the decoder
      */
     const DXVA2_ConfigPictureDecode *cfg;
 
     /**
      * The number of surface in the surface array
      */
     unsigned surface_count;
 
     /**
      * The array of Direct3D surfaces used to create the decoder
      */
     LPDIRECT3DSURFACE9 *surface;
 
     /**
      * A bit field configuring the workarounds needed for using the decoder
      */
     uint64_t workaround;
 
     /**

      * Private to the FFmpeg AVHWAccel implementation

      */
     unsigned report_id;
 };
 

 /**
  * @}
  */
 

 #endif /* AVCODEC_DXVA2_H */