mirror of https://git.tukaani.org/xz.git
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file filter_common.c
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/// \brief Filter-specific stuff common for both encoder and decoder
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//
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// Copyright (C) 2008 Lasse Collin
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef LZMA_FILTER_COMMON_H
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#define LZMA_FILTER_COMMON_H
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#include "common.h"
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/// Both lzma_filter_encoder and lzma_filter_decoder begin with these members.
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typedef struct {
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/// Filter ID
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lzma_vli id;
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/// Initializes the filter encoder and calls lzma_next_filter_init()
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/// for filters + 1.
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lzma_init_function init;
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/// Calculates memory usage of the encoder. If the options are
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/// invalid, UINT64_MAX is returned.
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uint64_t (*memusage)(const void *options);
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} lzma_filter_coder;
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typedef const lzma_filter_coder *(*lzma_filter_find)(lzma_vli id);
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extern lzma_ret lzma_raw_coder_init(
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lzma_next_coder *next, lzma_allocator *allocator,
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const lzma_filter *filters,
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lzma_filter_find coder_find, bool is_encoder);
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extern uint64_t lzma_memusage_coder(lzma_filter_find coder_find,
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const lzma_filter *filters);
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#endif
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