67 строки
2.5 KiB
C
67 строки
2.5 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AV1_ENCODER_GLOBAL_MOTION_H_
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#define AV1_ENCODER_GLOBAL_MOTION_H_
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#include "aom/aom_integer.h"
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#include "aom_scale/yv12config.h"
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#include "av1/common/mv.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RANSAC_NUM_MOTIONS 1
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void convert_model_to_params(const double *params, WarpedMotionParams *model);
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int is_enough_erroradvantage(double erroradv, int params_cost);
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// Returns the av1_warp_error between "dst" and the result of applying the
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// motion params that result from fine-tuning "wm" to "ref". Note that "wm" is
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// modified in place.
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int64_t refine_integerized_param(WarpedMotionParams *wm,
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TransformationType wmtype,
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#if CONFIG_HIGHBITDEPTH
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int use_hbd, int bd,
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#endif // CONFIG_HIGHBITDEPTH
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uint8_t *ref, int r_width, int r_height,
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int r_stride, uint8_t *dst, int d_width,
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int d_height, int d_stride, int n_refinements,
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int64_t best_frame_error);
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/*
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Computes "num_motions" candidate global motion parameters between two frames.
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The array "params_by_motion" should be length 8 * "num_motions". The ordering
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of each set of parameters is best described by the homography:
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[x' (m2 m3 m0 [x
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z . y' = m4 m5 m1 * y
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1] m6 m7 1) 1]
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where m{i} represents the ith value in any given set of parameters.
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"num_inliers" should be length "num_motions", and will be populated with the
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number of inlier feature points for each motion. Params for which the
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num_inliers entry is 0 should be ignored by the caller.
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*/
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int compute_global_motion_feature_based(
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TransformationType type, YV12_BUFFER_CONFIG *frm, YV12_BUFFER_CONFIG *ref,
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#if CONFIG_HIGHBITDEPTH
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int bit_depth,
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#endif
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int *num_inliers_by_motion, double *params_by_motion, int num_motions);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_ENCODER_GLOBAL_MOTION_H_
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