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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 < 0x0602
  33. #undef _WIN32_WINNT
  34. #define _WIN32_WINNT 0x0602
  35. #endif
  36.  
  37. #include <stdint.h>
  38. #include <d3d9.h>
  39. #include <dxva2api.h>
  40.  
  41. /**
  42.  * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
  43.  * @ingroup lavc_codec_hwaccel
  44.  *
  45.  * @{
  46.  */
  47.  
  48. #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
  49. #define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO    2 ///< Work around for DXVA2 and old Intel GPUs with ClearVideo interface
  50.  
  51. /**
  52.  * This structure is used to provides the necessary configurations and data
  53.  * to the DXVA2 FFmpeg HWAccel implementation.
  54.  *
  55.  * The application must make it available as AVCodecContext.hwaccel_context.
  56.  */
  57. struct dxva_context {
  58.     /**
  59.      * DXVA2 decoder object
  60.      */
  61.     IDirectXVideoDecoder *decoder;
  62.  
  63.     /**
  64.      * DXVA2 configuration used to create the decoder
  65.      */
  66.     const DXVA2_ConfigPictureDecode *cfg;
  67.  
  68.     /**
  69.      * The number of surface in the surface array
  70.      */
  71.     unsigned surface_count;
  72.  
  73.     /**
  74.      * The array of Direct3D surfaces used to create the decoder
  75.      */
  76.     LPDIRECT3DSURFACE9 *surface;
  77.  
  78.     /**
  79.      * A bit field configuring the workarounds needed for using the decoder
  80.      */
  81.     uint64_t workaround;
  82.  
  83.     /**
  84.      * Private to the FFmpeg AVHWAccel implementation
  85.      */
  86.     unsigned report_id;
  87. };
  88.  
  89. /**
  90.  * @}
  91.  */
  92.  
  93. #endif /* AVCODEC_DXVA_H */
  94.