1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* 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 VP8_ENCODER_DENOISING_H_
#define VP8_ENCODER_DENOISING_H_
#include "block.h"
#include "vp8/common/loopfilter.h"
#ifdef __cplusplus
extern "C" {
#endif
#define SUM_DIFF_THRESHOLD (16 * 16 * 2)
#define SUM_DIFF_THRESHOLD_HIGH (600) // ~(16 * 16 * 1.5)
#define MOTION_MAGNITUDE_THRESHOLD (8*3)
#define SUM_DIFF_THRESHOLD_UV (96) // (8 * 8 * 1.5)
#define SUM_DIFF_THRESHOLD_HIGH_UV (8 * 8 * 2)
#define SUM_DIFF_FROM_AVG_THRESH_UV (8 * 8 * 8)
#define MOTION_MAGNITUDE_THRESHOLD_UV (8*3)
#define MAX_GF_ARF_DENOISE_RANGE (8)
enum vp8_denoiser_decision
{
COPY_BLOCK,
FILTER_BLOCK
};
enum vp8_denoiser_filter_state {
kNoFilter,
kFilterZeroMV,
kFilterNonZeroMV
};
enum vp8_denoiser_mode {
kDenoiserOff,
kDenoiserOnYOnly,
kDenoiserOnYUV,
kDenoiserOnYUVAggressive,
kDenoiserOnAdaptive
};
typedef struct {
// Scale factor on sse threshold above which no denoising is done.
unsigned int scale_sse_thresh;
// Scale factor on motion magnitude threshold above which no
// denoising is done.
unsigned int scale_motion_thresh;
// Scale factor on motion magnitude below which we increase the strength of
// the temporal filter (in function vp8_denoiser_filter).
unsigned int scale_increase_filter;
// Scale factor to bias to ZEROMV for denoising.
unsigned int denoise_mv_bias;
// Scale factor to bias to ZEROMV for coding mode selection.
unsigned int pickmode_mv_bias;
// Quantizer threshold below which we use the segmentation map to switch off
// loop filter for blocks that have been coded as ZEROMV-LAST a certain number
// (consec_zerolast) of consecutive frames. Note that the delta-QP is set to
// 0 when segmentation map is used for shutting off loop filter.
unsigned int qp_thresh;
// Threshold for number of consecutive frames for blocks coded as ZEROMV-LAST.
unsigned int consec_zerolast;
// Threshold for amount of spatial blur on Y channel. 0 means no spatial blur.
unsigned int spatial_blur;
} denoise_params;
typedef struct vp8_denoiser
{
YV12_BUFFER_CONFIG yv12_running_avg[MAX_REF_FRAMES];
YV12_BUFFER_CONFIG yv12_mc_running_avg;
// TODO(marpan): Should remove yv12_last_source and use vp8_lookahead_peak.
YV12_BUFFER_CONFIG yv12_last_source;
unsigned char* denoise_state;
int num_mb_cols;
int denoiser_mode;
int threshold_aggressive_mode;
int nmse_source_diff;
int nmse_source_diff_count;
int qp_avg;
int qp_threshold_up;
int qp_threshold_down;
int bitrate_threshold;
denoise_params denoise_pars;
} VP8_DENOISER;
int vp8_denoiser_allocate(VP8_DENOISER *denoiser, int width, int height,
int num_mb_rows, int num_mb_cols, int mode);
void vp8_denoiser_free(VP8_DENOISER *denoiser);
void vp8_denoiser_set_parameters(VP8_DENOISER *denoiser, int mode);
void vp8_denoiser_denoise_mb(VP8_DENOISER *denoiser,
MACROBLOCK *x,
unsigned int best_sse,
unsigned int zero_mv_sse,
int recon_yoffset,
int recon_uvoffset,
loop_filter_info_n *lfi_n,
int mb_row,
int mb_col,
int block_index);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP8_ENCODER_DENOISING_H_
|
