ffmpeg/libavcodec/dxva2.h

   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 #define _WIN32_WINNT 0x0600
  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 */