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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/global_motion.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/global_motion.h b/third_party/aom/av1/encoder/global_motion.h new file mode 100644 index 0000000000..c7c016c430 --- /dev/null +++ b/third_party/aom/av1/encoder/global_motion.h @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AV1_ENCODER_GLOBAL_MOTION_H_ +#define AOM_AV1_ENCODER_GLOBAL_MOTION_H_ + +#include "aom/aom_integer.h" +#include "aom_scale/yv12config.h" +#include "av1/common/mv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define RANSAC_NUM_MOTIONS 1 + +void convert_model_to_params(const double *params, WarpedMotionParams *model); + +int is_enough_erroradvantage(double best_erroradvantage, int params_cost, + int erroradv_type); + +// Returns the av1_warp_error between "dst" and the result of applying the +// motion params that result from fine-tuning "wm" to "ref". Note that "wm" is +// modified in place. +int64_t refine_integerized_param(WarpedMotionParams *wm, + TransformationType wmtype, int use_hbd, int bd, + uint8_t *ref, int r_width, int r_height, + int r_stride, uint8_t *dst, int d_width, + int d_height, int d_stride, int n_refinements, + int64_t best_frame_error); + +/* + Computes "num_motions" candidate global motion parameters between two frames. + The array "params_by_motion" should be length 8 * "num_motions". The ordering + of each set of parameters is best described by the homography: + + [x' (m2 m3 m0 [x + z . y' = m4 m5 m1 * y + 1] m6 m7 1) 1] + + where m{i} represents the ith value in any given set of parameters. + + "num_inliers" should be length "num_motions", and will be populated with the + number of inlier feature points for each motion. Params for which the + num_inliers entry is 0 should be ignored by the caller. +*/ +int compute_global_motion_feature_based(TransformationType type, + YV12_BUFFER_CONFIG *frm, + YV12_BUFFER_CONFIG *ref, int bit_depth, + int *num_inliers_by_motion, + double *params_by_motion, + int num_motions); +#ifdef __cplusplus +} // extern "C" +#endif +#endif // AOM_AV1_ENCODER_GLOBAL_MOTION_H_ |