diff options
Diffstat (limited to 'media/libvpx/libvpx/vp9/encoder/vp9_denoiser.h')
| -rw-r--r-- | media/libvpx/libvpx/vp9/encoder/vp9_denoiser.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/encoder/vp9_denoiser.h b/media/libvpx/libvpx/vp9/encoder/vp9_denoiser.h new file mode 100644 index 0000000000..1973e98988 --- /dev/null +++ b/media/libvpx/libvpx/vp9/encoder/vp9_denoiser.h @@ -0,0 +1,132 @@ +/* + * 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 VPX_VP9_ENCODER_VP9_DENOISER_H_ +#define VPX_VP9_ENCODER_VP9_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; + unsigned int current_denoiser_frame; + 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, struct SVC *svc, + 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, + struct SVC *svc, 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(struct VP9_COMP *const cpi, int noise_level); + +void vp9_denoiser_reset_on_first_frame(struct VP9_COMP *const cpi); + +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 // VPX_VP9_ENCODER_VP9_DENOISER_H_ |