From 68569dee1416593955c1570d638b3d9250b33012 Mon Sep 17 00:00:00 2001 From: trav90 Date: Mon, 15 Oct 2018 21:45:30 -0500 Subject: Import aom library This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36. --- third_party/aom/av1/encoder/global_motion.h | 62 +++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 third_party/aom/av1/encoder/global_motion.h (limited to 'third_party/aom/av1/encoder/global_motion.h') 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 000000000..8fc757f38 --- /dev/null +++ b/third_party/aom/av1/encoder/global_motion.h @@ -0,0 +1,62 @@ +/* + * 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 AV1_ENCODER_GLOBAL_MOTION_H_ +#define 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 erroradv, int params_cost); + +double refine_integerized_param(WarpedMotionParams *wm, + TransformationType wmtype, +#if CONFIG_HIGHBITDEPTH + int use_hbd, int bd, +#endif // CONFIG_HIGHBITDEPTH + 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); + +/* + 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, +#if CONFIG_HIGHBITDEPTH + int bit_depth, +#endif + int *num_inliers_by_motion, double *params_by_motion, int num_motions); +#ifdef __cplusplus +} // extern "C" +#endif +#endif // AV1_ENCODER_GLOBAL_MOTION_H_ -- cgit v1.2.3