ccba289f8d
This commit enables a fast path computational flow for forward transformation. It checks the sse and variance of prediction residuals and decides if the quantized coefficients are all zero, dc only, or more. It then selects the corresponding coding path in the forward transformation and quantization stage. It is currently enabled in rtc coding mode. Will do it for rd coding mode next. In speed -6, the runtime for pedestrian_area 1080p at 1000 kbps goes down from 14234 ms to 13704 ms, i.e., about 4% speed-up. Overall coding performance for rtc set is changed by -0.18%. Change-Id: I0452da1786d59bc8bcbe0a35fdae9f623d1d44e1
78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
/*
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* Copyright (c) 2010 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_QUANTIZE_H_
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#define VP9_ENCODER_VP9_QUANTIZE_H_
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#include "./vpx_config.h"
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#include "vp9/encoder/vp9_block.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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DECLARE_ALIGNED(16, int16_t, y_quant[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, y_quant_shift[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, y_zbin[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, y_round[QINDEX_RANGE][8]);
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// TODO(jingning): in progress of re-working the quantization. will decide
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// if we want to deprecate the current use of y_quant.
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DECLARE_ALIGNED(16, int16_t, y_quant_fp[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, uv_quant_fp[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, uv_quant[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, uv_quant_shift[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, uv_zbin[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, uv_round[QINDEX_RANGE][8]);
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#if CONFIG_ALPHA
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DECLARE_ALIGNED(16, int16_t, a_quant[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, a_quant_shift[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, a_zbin[QINDEX_RANGE][8]);
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DECLARE_ALIGNED(16, int16_t, a_round[QINDEX_RANGE][8]);
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#endif
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} QUANTS;
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void vp9_quantize_dc(const int16_t *coeff_ptr, int skip_block,
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const int16_t *round_ptr, const int16_t quant_ptr,
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int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
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const int16_t dequant_ptr, uint16_t *eob_ptr);
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void vp9_quantize_dc_32x32(const int16_t *coeff_ptr, int skip_block,
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const int16_t *round_ptr, const int16_t quant_ptr,
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int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
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const int16_t dequant_ptr, uint16_t *eob_ptr);
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void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block,
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const int16_t *scan, const int16_t *iscan);
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struct VP9_COMP;
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struct VP9Common;
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void vp9_frame_init_quantizer(struct VP9_COMP *cpi);
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void vp9_update_zbin_extra(struct VP9_COMP *cpi, MACROBLOCK *x);
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void vp9_init_plane_quantizers(struct VP9_COMP *cpi, MACROBLOCK *x);
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void vp9_init_quantizer(struct VP9_COMP *cpi);
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void vp9_set_quantizer(struct VP9Common *cm, int q);
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int vp9_quantizer_to_qindex(int quantizer);
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int vp9_qindex_to_quantizer(int qindex);
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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_QUANTIZE_H_
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