vpx/vp8/common/pred_common.h
Deb Mukherjee 57d953479b Adding contextual coding of mb_skip_coeff flag.
Using contextual coding of the mkb_skip_coeff flag using the
values of this flag from the left and above. There is a small
improvement of about 0.15% on Derf:
http://www.corp.google.com/~debargha/vp8_results/mbskipcontext.html

Refactored to use pred_common.c by adding a new context type.

Results on HD set (about 0.66% improvement):
http://www.corp.google.com/~debargha/vp8_results/mbskipcontext_hd.html

Incliding missing refactoring to use the pred_common utilities.

Change-Id: I95373382d429b5a59610d77f69a0fea2be628278
2012-03-21 03:55:44 -07:00

55 lines
1.6 KiB
C

/*
* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "type_aliases.h"
#include "onyxc_int.h"
#include "vp8/common/blockd.h"
#ifndef __INC_PRED_COMMON_H__
#define __INC_PRED_COMMON_H__ 1
// Predicted items
typedef enum
{
PRED_SEG_ID = 0, // Segment identifier
PRED_REF = 1,
PRED_COMP = 2,
#if CONFIG_NEWENTROPY
PRED_MBSKIP = 3,
#endif
} PRED_ID;
extern unsigned char get_pred_context( VP8_COMMON *const cm,
MACROBLOCKD *const xd,
PRED_ID pred_id );
extern vp8_prob get_pred_prob( VP8_COMMON *const cm,
MACROBLOCKD *const xd,
PRED_ID pred_id );
extern unsigned char get_pred_flag( MACROBLOCKD *const xd,
PRED_ID pred_id );
extern void set_pred_flag( MACROBLOCKD *const xd,
PRED_ID pred_id,
unsigned char pred_flag);
extern unsigned char get_pred_mb_segid( VP8_COMMON *const cm, int MbIndex );
extern MV_REFERENCE_FRAME get_pred_ref( VP8_COMMON *const cm,
MACROBLOCKD *const xd );
extern void compute_mod_refprobs( VP8_COMMON *const cm );
#endif /* __INC_PRED_COMMON_H__ */