/*

  * This file is part of FFmpeg.

  *
  * FFmpeg 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.
  *
  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVCODEC_HWACCEL_H
 #define AVCODEC_HWACCEL_H
 

 #include "avcodec.h"

 #include "hwaccels.h"

 #define HWACCEL_CAP_ASYNC_SAFE      (1 << 0)
 

 
 typedef struct AVCodecHWConfigInternal {
     /**
      * This is the structure which will be returned to the user by
      * avcodec_get_hw_config().
      */
     AVCodecHWConfig public;
     /**
      * If this configuration uses a hwaccel, a pointer to it.
      * If not, NULL.
      */
     const AVHWAccel *hwaccel;
 } AVCodecHWConfigInternal;
 
 

 // These macros are used to simplify AVCodecHWConfigInternal definitions.
 
 #define HW_CONFIG_HWACCEL(format, device, name) \
     &(const AVCodecHWConfigInternal) { \
         .public          = { \
             .pix_fmt     = AV_PIX_FMT_ ## format, \
             .methods     = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX | \
                            AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, \
             .device_type = AV_HWDEVICE_TYPE_ ## device, \
         }, \
         .hwaccel         = &name, \
     }
 
 #define HW_CONFIG_INTERNAL(format) \
     &(const AVCodecHWConfigInternal) { \
         .public          = { \
             .pix_fmt     = AV_PIX_FMT_ ## format, \
             .methods     = AV_CODEC_HW_CONFIG_METHOD_INTERNAL, \
             .device_type = AV_HWDEVICE_TYPE_NONE, \
         }, \
         .hwaccel         = NULL, \
     }
 
 #define HW_CONFIG_AD_HOC_HWACCEL(format, name) \
     &(const AVCodecHWConfigInternal) { \
         .public =      { \
             .pix_fmt     = AV_PIX_FMT_ ## format, \
             .methods     = AV_CODEC_HW_CONFIG_METHOD_AD_HOC, \
             .device_type = AV_HWDEVICE_TYPE_NONE, \
         }, \
         .hwaccel = &name, \
     }
 
 #define HWACCEL_DXVA2(codec) \
     HW_CONFIG_HWACCEL(DXVA2_VLD, DXVA2,   ff_ ## codec ## _dxva2_hwaccel)
 #define HWACCEL_D3D11VA2(codec) \
     HW_CONFIG_HWACCEL(D3D11,     D3D11VA, ff_ ## codec ## _d3d11va2_hwaccel)
 #define HWACCEL_NVDEC(codec) \
     HW_CONFIG_HWACCEL(CUDA,      CUDA,    ff_ ## codec ## _nvdec_hwaccel)
 #define HWACCEL_VAAPI(codec) \
     HW_CONFIG_HWACCEL(VAAPI,     VAAPI,   ff_ ## codec ## _vaapi_hwaccel)
 #define HWACCEL_VDPAU(codec) \
     HW_CONFIG_HWACCEL(VDPAU,     VDPAU,   ff_ ## codec ## _vdpau_hwaccel)
 #define HWACCEL_VIDEOTOOLBOX(codec) \
     HW_CONFIG_HWACCEL(VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
 
 #define HWACCEL_D3D11VA(codec) \
     HW_CONFIG_AD_HOC_HWACCEL(D3D11VA_VLD, ff_ ## codec ## _d3d11va_hwaccel)
 #define HWACCEL_XVMC(codec) \
     HW_CONFIG_AD_HOC_HWACCEL(XVMC,        ff_ ## codec ## _xvmc_hwaccel)
 

 #endif /* AVCODEC_HWACCEL_H */