d39b5d0546
One of the problems arising when tweaking or adjusting the quantizer
tables is that there are a lot of look up tables that depend on the QINDEX.
Any adjustment to the link between QINDEX and real quantizer therefore tends
to break aspects of for example the rate control.
In this check in I have replaced several of the look up tables with functions that
approximate the same results as the old Q luts but use a formulaic approach
based on real Q values rather than QIndex. This should hopefully make it easier
to experiment with changes to the Q tables without always having to go through
and hand optimize a set of look up tables. Once things stabilize we may choose
to re-instate luts for the sake of performance.
Patch 2:
Addressed Ronald's comments.
vp8_init_me_luts() Added so luts only initialized once.
Change-Id: Ic80db2212d2fd01e08e8cb5c7dca1fda1102be57
37 lines
1.2 KiB
C
37 lines
1.2 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 __INC_RDOPT_H
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#define __INC_RDOPT_H
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#define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
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#define RDCOST_8x8(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )
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extern void vp8_initialize_rd_consts(VP8_COMP *cpi, int Qvalue);
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extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra);
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extern void vp8_rd_pick_intra_mode(VP8_COMP *cpi, MACROBLOCK *x, int *rate);
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extern void vp8_mv_pred
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(
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VP8_COMP *cpi,
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MACROBLOCKD *xd,
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const MODE_INFO *here,
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int_mv *mvp,
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int refframe,
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int *ref_frame_sign_bias,
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int *sr,
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int near_sadidx[]
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);
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extern void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);
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extern void vp8_init_me_luts();
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#endif
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