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dxva2.h (2150B)

      1 /*
      2 * DXVA2 HW acceleration
      3 *
      4 * copyright (c) 2009 Laurent Aimar
      5 *
      6 * This file is part of Libav.
      7 *
      8 * Libav 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 * Libav 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 Libav; 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 #define _WIN32_WINNT 0x0600
     33 #include <stdint.h>
     34 #include <d3d9.h>
     35 #include <dxva2api.h>
     36 
     37 /**
     38 * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
     39 * @ingroup lavc_codec_hwaccel
     40 *
     41 * @{
     42 */
     43 
     44 #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
     45 
     46 /**
     47 * This structure is used to provides the necessary configurations and data
     48 * to the DXVA2 Libav HWAccel implementation.
     49 *
     50 * The application must make it available as AVCodecContext.hwaccel_context.
     51 */
     52 struct dxva_context {
     53    /**
     54     * DXVA2 decoder object
     55     */
     56    IDirectXVideoDecoder *decoder;
     57 
     58    /**
     59     * DXVA2 configuration used to create the decoder
     60     */
     61    const DXVA2_ConfigPictureDecode *cfg;
     62 
     63    /**
     64     * The number of surface in the surface array
     65     */
     66    unsigned surface_count;
     67 
     68    /**
     69     * The array of Direct3D surfaces used to create the decoder
     70     */
     71    LPDIRECT3DSURFACE9 *surface;
     72 
     73    /**
     74     * A bit field configuring the workarounds needed for using the decoder
     75     */
     76    uint64_t workaround;
     77 
     78    /**
     79     * Private to the Libav AVHWAccel implementation
     80     */
     81    unsigned report_id;
     82 };
     83 
     84 /**
     85 * @}
     86 */
     87 
     88 #endif /* AVCODEC_DXVA_H */