d031237999
Add an additional restriction to bit/complexity based segmentation based on spatial variance. Only lower Q when both the number of bits spent in the initial encoding pass and the spatial complexity are below a threshold. This will prevent the low Q segments being used just because there is a surfeit of bits. Small metrics gains especially opsnr. derf ~0.2% std-hd ~0.3% Change-Id: I6a8496d466d673f9b0e2b2ca6304ea7b6d8e1cce
32 lines
882 B
C
32 lines
882 B
C
/*
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* Copyright (c) 2013 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_VP9_AQ_VARIANCE_H_
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#define VP9_ENCODER_VP9_AQ_VARIANCE_H_
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#include "vp9/encoder/vp9_encoder.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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unsigned int vp9_vaq_segment_id(int energy);
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void vp9_vaq_frame_setup(VP9_COMP *cpi);
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int vp9_block_energy(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs);
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double vp9_log_block_var(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VP9_ENCODER_VP9_AQ_VARIANCE_H_
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