/*

 * DXVA2 HW acceleration

 *

 * copyright (c) 2009 Laurent Aimar

 *

 * This file is part of Libav.

 *

 * Libav is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * Libav is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with Libav; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef AVCODEC_DXVA_H

#define AVCODEC_DXVA_H

/**

 * @file

 * @ingroup lavc_codec_hwaccel_dxva2

 * Public libavcodec DXVA2 header.

 */

#include <stdint.h>

#include <d3d9.h>

#include <dxva2api.h>

/**

 * @defgroup lavc_codec_hwaccel_dxva2 DXVA2

 * @ingroup lavc_codec_hwaccel

 *

 * @{

 */

#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards

/**

 * This structure is used to provides the necessary configurations and data

 * to the DXVA2 Libav HWAccel implementation.

 *

 * The application must make it available as AVCodecContext.hwaccel_context.

 */

struct dxva_context {

    /**

     * DXVA2 decoder object

     */

    IDirectXVideoDecoder *decoder;

    /**

     * DXVA2 configuration used to create the decoder

     */

    const DXVA2_ConfigPictureDecode *cfg;

    /**

     * The number of surface in the surface array

     */

    unsigned surface_count;

    /**

     * The array of Direct3D surfaces used to create the decoder

     */

    LPDIRECT3DSURFACE9 *surface;

    /**

     * A bit field configuring the workarounds needed for using the decoder

     */

    uint64_t workaround;

    /**

     * Private to the Libav AVHWAccel implementation

     */

    unsigned report_id;

};

/**

 * @}

 */

#endif /* AVCODEC_DXVA_H */