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ffmpeg-4.2.2/libavfilter/vaapi_vpp.h 2.73 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * 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 AVFILTER_VAAPI_VPP_H
  #define AVFILTER_VAAPI_VPP_H
  
  #include <va/va.h>
  #include <va/va_vpp.h>
  
  #include "libavutil/hwcontext.h"
  #include "libavutil/hwcontext_vaapi.h"
  
  #include "avfilter.h"
  
  // ARGB black, for VAProcPipelineParameterBuffer.output_background_color.
  #define VAAPI_VPP_BACKGROUND_BLACK 0xff000000
  
  typedef struct VAAPIVPPContext {
      const AVClass *class;
  
      AVVAAPIDeviceContext *hwctx;
      AVBufferRef *device_ref;
  
      int valid_ids;
      VAConfigID  va_config;
      VAContextID va_context;
  
      AVBufferRef       *input_frames_ref;
      AVHWFramesContext *input_frames;
      VARectangle        input_region;
  
      enum AVPixelFormat output_format;
      int output_width;   // computed width
      int output_height;  // computed height
  
      VABufferID         filter_buffers[VAProcFilterCount];
      int                nb_filter_buffers;
  
      int (*build_filter_params)(AVFilterContext *avctx);
  
      void (*pipeline_uninit)(AVFilterContext *avctx);
  } VAAPIVPPContext;
  
  void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx);
  
  void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx);
  
  int ff_vaapi_vpp_query_formats(AVFilterContext *avctx);
  
  void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx);
  
  int ff_vaapi_vpp_config_input(AVFilterLink *inlink);
  
  int ff_vaapi_vpp_config_output(AVFilterLink *outlink);
  
  int ff_vaapi_vpp_init_params(AVFilterContext *avctx,
                               VAProcPipelineParameterBuffer *params,
                               const AVFrame *input_frame,
                               AVFrame *output_frame);
  
  int ff_vaapi_vpp_make_param_buffers(AVFilterContext *avctx,
                                      int type,
                                      const void *data,
                                      size_t size,
                                      int count);
  
  int ff_vaapi_vpp_render_picture(AVFilterContext *avctx,
                                  VAProcPipelineParameterBuffer *params,
                                  AVFrame *output_frame);
  
  #endif /* AVFILTER_VAAPI_VPP_H */