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 #include <stdint.h>

    33 

    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 */