49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file filter_common.h
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/// \brief Filter-specific stuff common for both encoder and decoder
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//
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// Author: Lasse Collin
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//
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// This file has been put into the public domain.
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// You can do whatever you want with this file.
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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, const 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_raw_coder_memusage(lzma_filter_find coder_find,
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const lzma_filter *filters);
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#endif
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