libavfilter/vmaf_motion.h

   1 /*
   2  * Copyright (c) 2017 Ronald S. Bultje <rsbultje@gmail.com>
   3  * Copyright (c) 2017 Ashish Pratap Singh <ashk43712@gmail.com>
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef AVFILTER_VMAF_MOTION_H
  23 #define AVFILTER_VMAF_MOTION_H
  24
  25 #include <stddef.h>
  26 #include <stdint.h>
  27 #include "video.h"
  28
  29 typedef struct VMAFMotionDSPContext {
  30     uint64_t (*sad)(const uint16_t *img1, const uint16_t *img2, int w, int h,
  31                     ptrdiff_t img1_stride, ptrdiff_t img2_stride);
  32     void (*convolution_x)(const uint16_t *filter, int filt_w, const uint16_t *src,
  33                           uint16_t *dst, int w, int h, ptrdiff_t src_stride,
  34                           ptrdiff_t dst_stride);
  35     void (*convolution_y)(const uint16_t *filter, int filt_w, const uint8_t *src,
  36                           uint16_t *dst, int w, int h, ptrdiff_t src_stride,
  37                           ptrdiff_t dst_stride);
  38 } VMAFMotionDSPContext;
  39
  40 void ff_vmafmotion_init_x86(VMAFMotionDSPContext *dsp);
  41
  42 typedef struct VMAFMotionData {
  43     uint16_t filter[5];
  44     int width;
  45     int height;
  46     ptrdiff_t stride;
  47     uint16_t *blur_data[2 /* cur, prev */];
  48     uint16_t *temp_data;
  49     double motion_sum;
  50     uint64_t nb_frames;
  51     VMAFMotionDSPContext vmafdsp;
  52 } VMAFMotionData;
  53
  54 int ff_vmafmotion_init(VMAFMotionData *data, int w, int h, enum AVPixelFormat fmt);
  55 double ff_vmafmotion_process(VMAFMotionData *data, AVFrame *frame);
  56 double ff_vmafmotion_uninit(VMAFMotionData *data);
  57
  58 #endif /* AVFILTER_VMAF_MOTION_H */