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ffmpeg-4.2.2/libavfilter/qsvvpp.h 2.36 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
   */
  
  /**
   * @file
   * Intel Quick Sync Video VPP base function
   */
  
  #ifndef AVFILTER_QSVVPP_H
  #define AVFILTER_QSVVPP_H
  
  #include <mfx/mfxvideo.h>
  
  #include "avfilter.h"
  
  #define FF_INLINK_IDX(link)  ((int)((link)->dstpad - (link)->dst->input_pads))
  #define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads))
  
  #define QSV_VERSION_ATLEAST(MAJOR, MINOR)   \
      (MFX_VERSION_MAJOR > (MAJOR) ||         \
       MFX_VERSION_MAJOR == (MAJOR) && MFX_VERSION_MINOR >= (MINOR))
  
  #define QSV_RUNTIME_VERSION_ATLEAST(MFX_VERSION, MAJOR, MINOR) \
      ((MFX_VERSION.Major > (MAJOR)) ||                           \
      (MFX_VERSION.Major == (MAJOR) && MFX_VERSION.Minor >= (MINOR)))
  
  typedef struct QSVVPPContext QSVVPPContext;
  
  typedef struct QSVVPPCrop {
      int in_idx;        ///< Input index
      int x, y, w, h;    ///< Crop rectangle
  } QSVVPPCrop;
  
  typedef struct QSVVPPParam {
      /* default is ff_filter_frame */
      int (*filter_frame)(AVFilterLink *outlink, AVFrame *frame);
  
      /* To fill with MFX enhanced filter configurations */
      int num_ext_buf;
      mfxExtBuffer **ext_buf;
  
      /* Real output format */
      enum AVPixelFormat out_sw_format;
  
      /* Crop information for each input, if needed */
      int num_crop;
      QSVVPPCrop *crop;
  } QSVVPPParam;
  
  /* create and initialize the QSV session */
  int ff_qsvvpp_create(AVFilterContext *avctx, QSVVPPContext **vpp, QSVVPPParam *param);
  
  /* release the resources (eg.surfaces) */
  int ff_qsvvpp_free(QSVVPPContext **vpp);
  
  /* vpp filter frame and call the cb if needed */
  int ff_qsvvpp_filter_frame(QSVVPPContext *vpp, AVFilterLink *inlink, AVFrame *frame);
  
  #endif /* AVFILTER_QSVVPP_H */