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ffmpeg-4.2.2/libavfilter/vmaf_motion.h 2.16 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2017 Ronald S. Bultje <rsbultje@gmail.com>
   * Copyright (c) 2017 Ashish Pratap Singh <ashk43712@gmail.com>
   *
   * 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_VMAF_MOTION_H
  #define AVFILTER_VMAF_MOTION_H
  
  #include <stddef.h>
  #include <stdint.h>
  #include "video.h"
  
  typedef struct VMAFMotionDSPContext {
      uint64_t (*sad)(const uint16_t *img1, const uint16_t *img2, int w, int h,
                      ptrdiff_t img1_stride, ptrdiff_t img2_stride);
      void (*convolution_x)(const uint16_t *filter, int filt_w, const uint16_t *src,
                            uint16_t *dst, int w, int h, ptrdiff_t src_stride,
                            ptrdiff_t dst_stride);
      void (*convolution_y)(const uint16_t *filter, int filt_w, const uint8_t *src,
                            uint16_t *dst, int w, int h, ptrdiff_t src_stride,
                            ptrdiff_t dst_stride);
  } VMAFMotionDSPContext;
  
  void ff_vmafmotion_init_x86(VMAFMotionDSPContext *dsp);
  
  typedef struct VMAFMotionData {
      uint16_t filter[5];
      int width;
      int height;
      ptrdiff_t stride;
      uint16_t *blur_data[2 /* cur, prev */];
      uint16_t *temp_data;
      double motion_sum;
      uint64_t nb_frames;
      VMAFMotionDSPContext vmafdsp;
  } VMAFMotionData;
  
  int ff_vmafmotion_init(VMAFMotionData *data, int w, int h, enum AVPixelFormat fmt);
  double ff_vmafmotion_process(VMAFMotionData *data, AVFrame *frame);
  double ff_vmafmotion_uninit(VMAFMotionData *data);
  
  #endif /* AVFILTER_VMAF_MOTION_H */