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  1. /*
  2.  * DXVA2 HW acceleration
  3.  *
  4.  * copyright (c) 2009 Laurent Aimar
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. #ifndef AVCODEC_DXVA_H
  24. #define AVCODEC_DXVA_H
  25.  
  26. /**
  27.  * @file
  28.  * @ingroup lavc_codec_hwaccel_dxva2
  29.  * Public libavcodec DXVA2 header.
  30.  */
  31.  
  32. #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
  33. #undef _WIN32_WINNT
  34. #endif
  35.  
  36. #if !defined(_WIN32_WINNT)
  37. #define _WIN32_WINNT 0x0600
  38. #endif
  39.  
  40. #include <stdint.h>
  41. #include <d3d9.h>
  42. #include <dxva2api.h>
  43.  
  44. /**
  45.  * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
  46.  * @ingroup lavc_codec_hwaccel
  47.  *
  48.  * @{
  49.  */
  50.  
  51. #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
  52.  
  53. /**
  54.  * This structure is used to provides the necessary configurations and data
  55.  * to the DXVA2 FFmpeg HWAccel implementation.
  56.  *
  57.  * The application must make it available as AVCodecContext.hwaccel_context.
  58.  */
  59. struct dxva_context {
  60.     /**
  61.      * DXVA2 decoder object
  62.      */
  63.     IDirectXVideoDecoder *decoder;
  64.  
  65.     /**
  66.      * DXVA2 configuration used to create the decoder
  67.      */
  68.     const DXVA2_ConfigPictureDecode *cfg;
  69.  
  70.     /**
  71.      * The number of surface in the surface array
  72.      */
  73.     unsigned surface_count;
  74.  
  75.     /**
  76.      * The array of Direct3D surfaces used to create the decoder
  77.      */
  78.     LPDIRECT3DSURFACE9 *surface;
  79.  
  80.     /**
  81.      * A bit field configuring the workarounds needed for using the decoder
  82.      */
  83.     uint64_t workaround;
  84.  
  85.     /**
  86.      * Private to the FFmpeg AVHWAccel implementation
  87.      */
  88.     unsigned report_id;
  89. };
  90.  
  91. /**
  92.  * @}
  93.  */
  94.  
  95. #endif /* AVCODEC_DXVA_H */
  96.