5d4cffb35f
This commit adds a pick_sb_mode() function which selects the best 32x32 superblock coding mode. Then it selects the best per-MB modes, compares the two and encodes that in the bitstream. The bitstream coding is rather simplistic right now. At the SB level, we code a bit to indicate whether this block uses SB-coding (32x32 prediction) or MB-coding (anything else), and then we follow with the actual modes. This could and should be modified in the future, but is omitted from this commit because it will likely involve reorganizing much more code rather than just adding SB coding, so it's better to let that be judged on its own merits. Gains on derf: about even, YT/HD: +0.75%, STD/HD: +1.5%. Change-Id: Iae313a7cbd8f75b3c66d04a68b991cb096eaaba6
92 lines
3.5 KiB
C
92 lines
3.5 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_ENTROPYMODE_H
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#define __INC_ENTROPYMODE_H
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#include "blockd.h"
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#include "treecoder.h"
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#define SUBMVREF_COUNT 5
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#define VP8_NUMMBSPLITS 4
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typedef const int vp8_mbsplit[16];
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extern vp8_mbsplit vp8_mbsplits [VP8_NUMMBSPLITS];
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extern const int vp8_mbsplit_count [VP8_NUMMBSPLITS]; /* # of subsets */
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extern const vp8_prob vp8_mbsplit_probs [VP8_NUMMBSPLITS - 1];
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extern int vp8_mv_cont(const int_mv *l, const int_mv *a);
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extern const vp8_prob vp8_sub_mv_ref_prob [VP8_SUBMVREFS - 1];
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extern const vp8_prob vp8_sub_mv_ref_prob2 [SUBMVREF_COUNT][VP8_SUBMVREFS - 1];
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extern const unsigned int vp8_kf_default_bmode_counts [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES];
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extern const vp8_tree_index vp8_bmode_tree[];
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extern const vp8_tree_index vp8_ymode_tree[];
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extern const vp8_tree_index vp8_kf_ymode_tree[];
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extern const vp8_tree_index vp8_uv_mode_tree[];
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#define vp8_sb_ymode_tree vp8_uv_mode_tree
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extern const vp8_tree_index vp8_i8x8_mode_tree[];
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extern const vp8_tree_index vp8_mbsplit_tree[];
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extern const vp8_tree_index vp8_mv_ref_tree[];
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extern const vp8_tree_index vp8_sb_mv_ref_tree[];
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extern const vp8_tree_index vp8_sub_mv_ref_tree[];
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extern struct vp8_token_struct vp8_bmode_encodings [VP8_BINTRAMODES];
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extern struct vp8_token_struct vp8_ymode_encodings [VP8_YMODES];
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extern struct vp8_token_struct vp8_sb_kf_ymode_encodings [VP8_I32X32_MODES];
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extern struct vp8_token_struct vp8_kf_ymode_encodings [VP8_YMODES];
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extern struct vp8_token_struct vp8_i8x8_mode_encodings [VP8_I8X8_MODES];
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extern struct vp8_token_struct vp8_uv_mode_encodings [VP8_UV_MODES];
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extern struct vp8_token_struct vp8_mbsplit_encodings [VP8_NUMMBSPLITS];
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/* Inter mode values do not start at zero */
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extern struct vp8_token_struct vp8_mv_ref_encoding_array [VP8_MVREFS];
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extern struct vp8_token_struct vp8_sb_mv_ref_encoding_array [VP8_MVREFS];
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extern struct vp8_token_struct vp8_sub_mv_ref_encoding_array [VP8_SUBMVREFS];
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void vp8_entropy_mode_init(void);
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struct VP8Common;
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void vp8_init_mbmode_probs(struct VP8Common *x);
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extern void vp8_init_mode_contexts(struct VP8Common *pc);
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extern void vp8_update_mode_context(struct VP8Common *pc);;
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extern void vp8_accum_mv_refs(struct VP8Common *pc,
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MB_PREDICTION_MODE m,
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const int ct[4]);
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void vp8_default_bmode_probs(vp8_prob dest [VP8_BINTRAMODES - 1]);
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void vp8_kf_default_bmode_probs(vp8_prob dest [VP8_BINTRAMODES] [VP8_BINTRAMODES] [VP8_BINTRAMODES - 1]);
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void vp8_adapt_mode_probs(struct VP8Common *);
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#if CONFIG_SWITCHABLE_INTERP
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#define VP8_SWITCHABLE_FILTERS 2 /* number of switchable filters */
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extern const INTERPOLATIONFILTERTYPE vp8_switchable_interp
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[VP8_SWITCHABLE_FILTERS];
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extern const int vp8_switchable_interp_map[SWITCHABLE+1];
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extern const vp8_tree_index vp8_switchable_interp_tree
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[2*(VP8_SWITCHABLE_FILTERS-1)];
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extern struct vp8_token_struct vp8_switchable_interp_encodings
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[VP8_SWITCHABLE_FILTERS];
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extern const vp8_prob vp8_switchable_interp_prob
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[VP8_SWITCHABLE_FILTERS+1][VP8_SWITCHABLE_FILTERS-1];
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#endif
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#endif
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