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d3d11va.h (2610B)

      1 /*
      2 * Direct3D11 HW acceleration
      3 *
      4 * copyright (c) 2009 Laurent Aimar
      5 * copyright (c) 2015 Steve Lhomme
      6 *
      7 * This file is part of FFmpeg.
      8 *
      9 * FFmpeg is free software; you can redistribute it and/or
     10 * modify it under the terms of the GNU Lesser General Public
     11 * License as published by the Free Software Foundation; either
     12 * version 2.1 of the License, or (at your option) any later version.
     13 *
     14 * FFmpeg is distributed in the hope that it will be useful,
     15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     17 * Lesser General Public License for more details.
     18 *
     19 * You should have received a copy of the GNU Lesser General Public
     20 * License along with FFmpeg; if not, write to the Free Software
     21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     22 */
     23 
     24 #ifndef AVCODEC_D3D11VA_H
     25 #define AVCODEC_D3D11VA_H
     26 
     27 /**
     28 * @file
     29 * @ingroup lavc_codec_hwaccel_d3d11va
     30 * Public libavcodec D3D11VA header.
     31 */
     32 
     33 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
     34 #undef _WIN32_WINNT
     35 #define _WIN32_WINNT 0x0602
     36 #endif
     37 
     38 #include <stdint.h>
     39 #include <d3d11.h>
     40 
     41 /**
     42 * @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
     43 * @ingroup lavc_codec_hwaccel
     44 *
     45 * @{
     46 */
     47 
     48 /**
     49 * This structure is used to provides the necessary configurations and data
     50 * to the Direct3D11 FFmpeg HWAccel implementation.
     51 *
     52 * The application must make it available as AVCodecContext.hwaccel_context.
     53 *
     54 * Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
     55 */
     56 typedef struct AVD3D11VAContext {
     57    /**
     58     * D3D11 decoder object
     59     */
     60    ID3D11VideoDecoder *decoder;
     61 
     62    /**
     63      * D3D11 VideoContext
     64      */
     65    ID3D11VideoContext *video_context;
     66 
     67    /**
     68     * D3D11 configuration used to create the decoder
     69     */
     70    D3D11_VIDEO_DECODER_CONFIG *cfg;
     71 
     72    /**
     73     * The number of surface in the surface array
     74     */
     75    unsigned surface_count;
     76 
     77    /**
     78     * The array of Direct3D surfaces used to create the decoder
     79     */
     80    ID3D11VideoDecoderOutputView **surface;
     81 
     82    /**
     83     * A bit field configuring the workarounds needed for using the decoder
     84     */
     85    uint64_t workaround;
     86 
     87    /**
     88     * Private to the FFmpeg AVHWAccel implementation
     89     */
     90    unsigned report_id;
     91 
     92    /**
     93      * Mutex to access video_context
     94      */
     95    HANDLE  context_mutex;
     96 } AVD3D11VAContext;
     97 
     98 /**
     99 * Allocate an AVD3D11VAContext.
    100 *
    101 * @return Newly-allocated AVD3D11VAContext or NULL on failure.
    102 */
    103 AVD3D11VAContext *av_d3d11va_alloc_context(void);
    104 
    105 /**
    106 * @}
    107 */
    108 
    109 #endif /* AVCODEC_D3D11VA_H */