de085787ec
For each global motion parameter, search some step size to the left and right to try and minimize warp mse and correct for error. Change-Id: I1f0b464b0924d56b15460e509f89736af9b7e78f
115 lines
4.5 KiB
C
115 lines
4.5 KiB
C
/*
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* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be
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* found in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_COMMON_VP9_MOTION_MODEL_H
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#define VP9_COMMON_VP9_MOTION_MODEL_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <memory.h>
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#include <math.h>
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#include <assert.h>
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#include "./vpx_config.h"
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#include "vpx_ports/mem.h"
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#include "vp9/common/vp9_enums.h"
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#include "vp9/common/vp9_mv.h"
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typedef void (*projectPointsType)(double *mat, double *points, double *proj,
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const int n, const int stride_points,
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const int stride_proj);
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typedef enum {
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UNKNOWN_TRANSFORM = -1,
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HOMOGRAPHY, // homography, 8-parameter
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AFFINE, // affine, 6-parameter
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ROTZOOM, // simplified affine with rotation and zoom only, 4-parameter
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TRANSLATION // translational motion 2-parameter
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} TransformationType;
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static INLINE int get_numparams(TransformationType type) {
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switch (type) {
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case HOMOGRAPHY:
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return 9;
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case AFFINE:
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return 6;
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case ROTZOOM:
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return 4;
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case TRANSLATION:
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return 2;
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default:
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assert(0);
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return 0;
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}
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}
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void projectPointsHomography(double *mat, double *points, double *proj,
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const int n, const int stride_points,
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const int stride_proj);
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void projectPointsAffine(double *mat, double *points, double *proj,
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const int n, const int stride_points,
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const int stride_proj);
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void projectPointsRotZoom(double *mat, double *points, double *proj,
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const int n, const int stride_points,
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const int stride_proj);
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void projectPointsTranslation(double *mat, double *points, double *proj,
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const int n, const int stride_points,
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const int stride_proj);
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projectPointsType get_projectPointsType(TransformationType type);
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void vp9_convert_params_to_rotzoom(Global_Motion_Params *model, double *H);
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void vp9_warp_plane(Global_Motion_Params *gm,
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unsigned char *ref,
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int width, int height, int stride,
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unsigned char *pred,
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int p_col, int p_row,
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int p_width, int p_height, int p_stride,
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int subsampling_col, int subsampling_row,
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int x_scale, int y_scale);
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double vp9_warp_erroradv(Global_Motion_Params *gm,
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unsigned char *ref,
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int width, int height, int stride,
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unsigned char *src,
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int p_col, int p_row,
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int p_width, int p_height, int p_stride,
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int subsampling_col, int subsampling_row,
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int x_scale, int y_scale);
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double vp9_warp_erroradv_unq(TransformationType type, double *H,
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unsigned char *ref,
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int width, int height, int stride,
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unsigned char *src,
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int p_col, int p_row,
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int p_width, int p_height, int p_stride,
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int subsampling_col, int subsampling_row,
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int x_scale, int y_scale);
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double compute_warp_and_error(Global_Motion_Params *gm,
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projectPointsType projectPoints,
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unsigned char *ref,
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int width, int height, int stride,
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unsigned char *src,
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int p_col, int p_row,
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int p_width, int p_height, int p_stride,
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int subsampling_col, int subsampling_row,
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int x_scale, int y_scale);
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unsigned char interpolate(unsigned char *ref, double x, double y,
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int width, int height, int stride);
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int_mv vp9_get_global_sb_center_mv(int col, int row, int bw, int bh,
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Global_Motion_Params *model);
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int_mv vp9_get_global_sub8x8_center_mv(int col, int row, int block,
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Global_Motion_Params *model);
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#endif // VP9_COMMON_VP9_MOTION_MODEL_H
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