5805a14ca6
This patch removed the experiment of BIDIR_PRED and merged the feature
into the experiment of EXT_REFS:
(1) Each frame now has up to 6 reference frames, namely
LAST_FRAME, LAST2_FRAME, LAST3_FRAME, GOLDEN_FRAME, (forward) and
BWDREF_FRAME, ALTREF_FRAME (backward);
LAST4_FRAME has been removed;
(2) First pass still keeps the 8 updates:
KF_UPDATE, LF_UPDATE, GF_UPDATE, ARF_UPDATE, OVERLAY_UPDATE, and
BRF_UPDATE, LAST_BIPRED_UPDATE, BI_PRED_UPDATE;
(3) show_existing_frame==1 is supported in the experiment of EXT_REFS;
(4) New encoding modes are added for both single-ref and compound cases,
through the use of the 2 extra forward references (LAST2 & LAST3)
and the 1 extra backward reference (BWDREF).
RD performance wise, using Overall PSNR: Avg/BDRate
Bipred only Prev EXT_REFS Current EXT_REFS with bipred
lowres: -3.474/-3.324 -1.748/-1.586 -4.613/-4.387
derflr: -2.097/-1.353 -1.439/-1.215 -3.120/-2.252
midres: -2.129/-1.901 -1.345/-1.185 -2.898/-2.636
If in vp10/encoder/firstpass.h, change BFG_INTERVAL from 2 to 3, i.e. to
use 2 bi-predictive frames than 1, a further improvement may be
obtained:
Current EXT_REFS with bipred
1 bi-predictive frame 2 bi-predictive frames
lowres: -4.613/-4.387 -4.675/-4.465
derflr: -3.120/-2.252 -3.333/-2.516
midres: -2.898/-2.636 -3.406/-3.095
Change-Id: Ib06fe9ea0a5cfd7418a1d79b978ee9d80bf191cb
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/*
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* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_ENCODER_DENOISER_H_
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#define VP9_ENCODER_DENOISER_H_
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#include "vp10/encoder/block.h"
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#include "vpx_scale/yv12config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MOTION_MAGNITUDE_THRESHOLD (8 * 3)
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typedef enum vp10_denoiser_decision {
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COPY_BLOCK,
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FILTER_BLOCK
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} VP9_DENOISER_DECISION;
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typedef struct vp10_denoiser {
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YV12_BUFFER_CONFIG running_avg_y[MAX_REF_FRAMES];
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YV12_BUFFER_CONFIG mc_running_avg_y;
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int increase_denoising;
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int frame_buffer_initialized;
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} VP9_DENOISER;
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void vp10_denoiser_update_frame_info(VP9_DENOISER *denoiser,
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YV12_BUFFER_CONFIG src,
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FRAME_TYPE frame_type,
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int refresh_last_frame,
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#if CONFIG_EXT_REFS
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int refresh_bwd_ref_frame,
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#endif // CONFIG_EXT_REFS
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int refresh_alt_ref_frame,
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int refresh_golden_frame);
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void vp10_denoiser_denoise(VP9_DENOISER *denoiser, MACROBLOCK *mb,
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int mi_row, int mi_col, BLOCK_SIZE bs,
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PICK_MODE_CONTEXT *ctx);
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void vp10_denoiser_reset_frame_stats(PICK_MODE_CONTEXT *ctx);
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void vp10_denoiser_update_frame_stats(MB_MODE_INFO *mbmi,
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unsigned int sse, PREDICTION_MODE mode,
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PICK_MODE_CONTEXT *ctx);
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int vp10_denoiser_alloc(VP9_DENOISER *denoiser, int width, int height,
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int ssx, int ssy,
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#if CONFIG_VP9_HIGHBITDEPTH
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int use_highbitdepth,
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#endif
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int border);
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#if CONFIG_VP9_TEMPORAL_DENOISING
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int total_adj_strong_thresh(BLOCK_SIZE bs, int increase_denoising);
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#endif
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void vp10_denoiser_free(VP9_DENOISER *denoiser);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_ENCODER_DENOISER_H_
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