44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
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* Copyright (c) 2010 The VP8 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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/****************************************************************************
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*
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* Module Title : boolhuff.h
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*
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* Description : Bool Coder header file.
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*
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****************************************************************************/
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#ifndef __INC_BOOLHUFF_H
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#define __INC_BOOLHUFF_H
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typedef struct
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{
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unsigned int lowvalue;
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unsigned int range;
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unsigned int value;
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int count;
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unsigned int pos;
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unsigned char *buffer;
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// Variables used to track bit costs without outputing to the bitstream
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unsigned int measure_cost;
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unsigned long bit_counter;
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} BOOL_CODER;
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extern void vp8_start_encode(BOOL_CODER *bc, unsigned char *buffer);
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extern void vp8_encode_bool(BOOL_CODER *bc, int x, int context);
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extern void vp8_encode_value(BOOL_CODER *br, int data, int bits);
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extern void vp8_stop_encode(BOOL_CODER *bc);
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extern const unsigned int vp8_prob_cost[256];
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#endif
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