mirror of https://git.tukaani.org/xz.git
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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/// \file simple_encoder.c
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/// \brief Properties encoder for simple filters
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//
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// Copyright (C) 2007-2008 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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#include "simple_encoder.h"
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extern lzma_ret
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lzma_simple_props_size(uint32_t *size, const void *options)
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{
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const lzma_options_bcj *const opt = options;
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*size = (opt == NULL || opt->start_offset == 0) ? 0 : 4;
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return LZMA_OK;
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}
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extern lzma_ret
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lzma_simple_props_encode(const void *options, uint8_t *out)
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{
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const lzma_options_bcj *const opt = options;
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// The default start offset is zero, so we don't need to store any
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// options unless the start offset is non-zero.
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if (opt == NULL || opt->start_offset == 0)
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return LZMA_OK;
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integer_write_32(out, opt->start_offset);
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return LZMA_OK;
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}
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