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/*
* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP9_ENCODER_DENOISER_H_
#define VP9_ENCODER_DENOISER_H_
#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_skin_detection.h"
#include "vpx_scale/yv12config.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MOTION_MAGNITUDE_THRESHOLD (8 * 3)
// Denoiser is used in non svc real-time mode which does not use alt-ref, so no
// need to allocate for it, and hence we need MAX_REF_FRAME - 1
#define NONSVC_REF_FRAMES MAX_REF_FRAMES - 1
// Number of frame buffers when SVC is used. [0] for current denoised buffer and
// [1..8] for REF_FRAMES
#define SVC_REF_FRAMES 9
typedef enum vp9_denoiser_decision {
COPY_BLOCK,
FILTER_BLOCK,
FILTER_ZEROMV_BLOCK
} VP9_DENOISER_DECISION;
typedef enum vp9_denoiser_level {
kDenLowLow,
kDenLow,
kDenMedium,
kDenHigh
} VP9_DENOISER_LEVEL;
typedef struct vp9_denoiser {
YV12_BUFFER_CONFIG *running_avg_y;
YV12_BUFFER_CONFIG *mc_running_avg_y;
YV12_BUFFER_CONFIG last_source;
int frame_buffer_initialized;
int reset;
int num_ref_frames;
int num_layers;
VP9_DENOISER_LEVEL denoising_level;
VP9_DENOISER_LEVEL prev_denoising_level;
} VP9_DENOISER;
typedef struct {
int64_t zero_last_cost_orig;
int *ref_frame_cost;
int_mv (*frame_mv)[MAX_REF_FRAMES];
int reuse_inter_pred;
TX_SIZE best_tx_size;
PREDICTION_MODE best_mode;
MV_REFERENCE_FRAME best_ref_frame;
INTERP_FILTER best_pred_filter;
uint8_t best_mode_skip_txfm;
} VP9_PICKMODE_CTX_DEN;
struct VP9_COMP;
struct SVC;
void vp9_denoiser_update_frame_info(
VP9_DENOISER *denoiser, YV12_BUFFER_CONFIG src, FRAME_TYPE frame_type,
int refresh_alt_ref_frame, int refresh_golden_frame, int refresh_last_frame,
int alt_fb_idx, int gld_fb_idx, int lst_fb_idx, int resized,
int svc_refresh_denoiser_buffers, int second_spatial_layer);
void vp9_denoiser_denoise(struct VP9_COMP *cpi, MACROBLOCK *mb, int mi_row,
int mi_col, BLOCK_SIZE bs, PICK_MODE_CONTEXT *ctx,
VP9_DENOISER_DECISION *denoiser_decision,
int use_gf_temporal_ref);
void vp9_denoiser_reset_frame_stats(PICK_MODE_CONTEXT *ctx);
void vp9_denoiser_update_frame_stats(MODE_INFO *mi, unsigned int sse,
PREDICTION_MODE mode,
PICK_MODE_CONTEXT *ctx);
int vp9_denoiser_realloc_svc(VP9_COMMON *cm, VP9_DENOISER *denoiser,
int svc_buf_shift, int refresh_alt,
int refresh_gld, int refresh_lst, int alt_fb_idx,
int gld_fb_idx, int lst_fb_idx);
int vp9_denoiser_alloc(VP9_COMMON *cm, struct SVC *svc, VP9_DENOISER *denoiser,
int use_svc, int noise_sen, int width, int height,
int ssx, int ssy,
#if CONFIG_VP9_HIGHBITDEPTH
int use_highbitdepth,
#endif
int border);
#if CONFIG_VP9_TEMPORAL_DENOISING
// This function is used by both c and sse2 denoiser implementations.
// Define it as a static function within the scope where vp9_denoiser.h
// is referenced.
static INLINE int total_adj_strong_thresh(BLOCK_SIZE bs,
int increase_denoising) {
return (1 << num_pels_log2_lookup[bs]) * (increase_denoising ? 3 : 2);
}
#endif
void vp9_denoiser_free(VP9_DENOISER *denoiser);
void vp9_denoiser_set_noise_level(VP9_DENOISER *denoiser, int noise_level);
int64_t vp9_scale_part_thresh(int64_t threshold, VP9_DENOISER_LEVEL noise_level,
int content_state, int temporal_layer_id);
int64_t vp9_scale_acskip_thresh(int64_t threshold,
VP9_DENOISER_LEVEL noise_level, int abs_sumdiff,
int temporal_layer_id);
void vp9_denoiser_update_ref_frame(struct VP9_COMP *const cpi);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP9_ENCODER_DENOISER_H_