ref: da39e505dd99c3cf89a9585e0dfee477f436de37
dir: /vp8/encoder/boolhuff.h/
/*
* Copyright (c) 2010 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.
*/
/****************************************************************************
*
* Module Title : boolhuff.h
*
* Description : Bool Coder header file.
*
****************************************************************************/
#ifndef __INC_BOOLHUFF_H
#define __INC_BOOLHUFF_H
typedef struct
{
unsigned int lowvalue;
unsigned int range;
unsigned int value;
int count;
unsigned int pos;
unsigned char *buffer;
// Variables used to track bit costs without outputing to the bitstream
unsigned int measure_cost;
unsigned long bit_counter;
} BOOL_CODER;
extern void vp8_start_encode(BOOL_CODER *bc, unsigned char *buffer);
extern void vp8_encode_bool(BOOL_CODER *bc, int x, int context);
extern void vp8_encode_value(BOOL_CODER *br, int data, int bits);
extern void vp8_stop_encode(BOOL_CODER *bc);
extern const unsigned int vp8_prob_cost[256];
#endif