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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef _HUFFMAN_H_
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#define _HUFFMAN_H_
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#include <liboil/liboil-stdint.h>
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#include "jpeg_bits.h"
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typedef struct _HuffmanEntry HuffmanEntry;
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typedef struct _HuffmanTable HuffmanTable;
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struct _HuffmanEntry {
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unsigned int symbol;
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unsigned int mask;
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int n_bits;
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unsigned char value;
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};
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struct _HuffmanTable {
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int len;
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HuffmanEntry entries[256];
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};
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void huffman_table_init(HuffmanTable *table);
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void huffman_table_dump(HuffmanTable *table);
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void huffman_table_add(HuffmanTable *table, uint32_t code, int n_bits,
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int value);
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unsigned int huffman_table_decode_jpeg(HuffmanTable *tab, JpegBits *bits);
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int huffman_table_decode_macroblock(short *block, HuffmanTable *dc_tab,
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HuffmanTable *ac_tab, JpegBits *bits);
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int huffman_table_decode(HuffmanTable *dc_tab, HuffmanTable *ac_tab, JpegBits *bits);
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#endif
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