2af5473a90
Merged in the high_precision_mv experiment to make it easier to work on new mv encoding strategies. Also removed coef_update_probs3(). Change-Id: I82d3b0bb642419fe05dba82528bc9ba010e90924
81 lines
3.0 KiB
C
81 lines
3.0 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_ENTROPYMV_H
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#define __INC_ENTROPYMV_H
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#include "treecoder.h"
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#include "vpx_config.h"
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#include "blockd.h"
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enum {
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mv_max = 1023, /* max absolute value of a MV component */
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MVvals = (2 * mv_max) + 1, /* # possible values "" */
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mvlong_width = 10, /* Large MVs have 9 bit magnitudes */
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mvnum_short = 8, /* magnitudes 0 through 7 */
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mvnum_short_bits = 3, /* number of bits for short mvs */
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mvfp_max = 255, /* max absolute value of a full pixel MV component */
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MVfpvals = (2 * mvfp_max) + 1, /* # possible full pixel MV values */
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/* probability offsets for coding each MV component */
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mvpis_short = 0, /* short (<= 7) vs long (>= 8) */
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MVPsign, /* sign for non-zero */
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MVPshort, /* 8 short values = 7-position tree */
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MVPbits = MVPshort + mvnum_short - 1, /* mvlong_width long value bits */
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MVPcount = MVPbits + mvlong_width /* (with independent probabilities) */
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};
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typedef struct mv_context {
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vp8_prob prob[MVPcount]; /* often come in row, col pairs */
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} MV_CONTEXT;
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extern const MV_CONTEXT vp8_mv_update_probs[2], vp8_default_mv_context[2];
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enum {
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mv_max_hp = 2047, /* max absolute value of a MV component */
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MVvals_hp = (2 * mv_max_hp) + 1, /* # possible values "" */
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mvlong_width_hp = 11, /* Large MVs have 9 bit magnitudes */
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mvnum_short_hp = 16, /* magnitudes 0 through 15 */
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mvnum_short_bits_hp = 4, /* number of bits for short mvs */
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mvfp_max_hp = 255, /* max absolute value of a full pixel MV component */
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MVfpvals_hp = (2 * mvfp_max_hp) + 1, /* # possible full pixel MV values */
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/* probability offsets for coding each MV component */
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mvpis_short_hp = 0, /* short (<= 7) vs long (>= 8) */
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MVPsign_hp, /* sign for non-zero */
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MVPshort_hp, /* 8 short values = 7-position tree */
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MVPbits_hp = MVPshort_hp + mvnum_short_hp - 1, /* mvlong_width long value bits */
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MVPcount_hp = MVPbits_hp + mvlong_width_hp /* (with independent probabilities) */
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};
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typedef struct mv_context_hp {
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vp8_prob prob[MVPcount_hp]; /* often come in row, col pairs */
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} MV_CONTEXT_HP;
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extern const MV_CONTEXT_HP vp8_mv_update_probs_hp[2], vp8_default_mv_context_hp[2];
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extern const vp8_tree_index vp8_small_mvtree[];
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extern struct vp8_token_struct vp8_small_mvencodings [8];
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extern const vp8_tree_index vp8_small_mvtree_hp[];
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extern struct vp8_token_struct vp8_small_mvencodings_hp [16];
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void vp8_entropy_mv_init();
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struct VP8Common;
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void vp8_adapt_mv_probs(struct VP8Common *cm);
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#endif
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