/*
  * 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_VAAPI_DECODE_H
 #define AVCODEC_VAAPI_DECODE_H
 
 #include <va/va.h>
 
 #include "libavutil/frame.h"
 #include "libavutil/hwcontext.h"
 #include "libavutil/hwcontext_vaapi.h"
 
 #include "avcodec.h"

 
 #include "version.h"
 #if FF_API_STRUCT_VAAPI_CONTEXT

 #include "vaapi.h"

 #endif

 
 static inline VASurfaceID ff_vaapi_get_surface_id(AVFrame *pic)
 {
     return (uintptr_t)pic->data[3];
 }
 
 enum {
     MAX_PARAM_BUFFERS = 16,
 };
 
 typedef struct VAAPIDecodePicture {
     VASurfaceID           output_surface;
 
     int                nb_param_buffers;
     VABufferID            param_buffers[MAX_PARAM_BUFFERS];
 
     int                nb_slices;
     VABufferID           *slice_buffers;
     int                   slices_allocated;
 } VAAPIDecodePicture;
 
 typedef struct VAAPIDecodeContext {
     VAProfile             va_profile;
     VAEntrypoint          va_entrypoint;
     VAConfigID            va_config;
     VAContextID           va_context;
 

 #if FF_API_STRUCT_VAAPI_CONTEXT

 FF_DISABLE_DEPRECATION_WARNINGS

     int                   have_old_context;
     struct vaapi_context *old_context;
     AVBufferRef          *device_ref;

 FF_ENABLE_DEPRECATION_WARNINGS

 #endif

 
     AVHWDeviceContext    *device;
     AVVAAPIDeviceContext *hwctx;
 
     AVHWFramesContext    *frames;
     AVVAAPIFramesContext *hwfc;

 
     enum AVPixelFormat    surface_format;
     int                   surface_count;

 } VAAPIDecodeContext;
 
 
 int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
                                       VAAPIDecodePicture *pic,
                                       int type,
                                       const void *data,
                                       size_t size);
 
 int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
                                       VAAPIDecodePicture *pic,
                                       const void *params_data,
                                       size_t params_size,
                                       const void *slice_data,
                                       size_t slice_size);
 
 int ff_vaapi_decode_issue(AVCodecContext *avctx,
                           VAAPIDecodePicture *pic);
 int ff_vaapi_decode_cancel(AVCodecContext *avctx,
                            VAAPIDecodePicture *pic);
 
 int ff_vaapi_decode_init(AVCodecContext *avctx);
 int ff_vaapi_decode_uninit(AVCodecContext *avctx);
 
 #endif /* AVCODEC_VAAPI_DECODE_H */