1 ///////////////////////////////////////////////////////////////////////////////
3 /// \file stream_flags_common.h
4 /// \brief Common stuff for Stream flags coders
6 // Author: Lasse Collin
8 // This file has been put into the public domain.
9 // You can do whatever you want with this file.
11 ///////////////////////////////////////////////////////////////////////////////
13 #ifndef LZMA_STREAM_FLAGS_COMMON_H
14 #define LZMA_STREAM_FLAGS_COMMON_H
18 /// Size of the Stream Flags field
19 #define LZMA_STREAM_FLAGS_SIZE 2
21 extern const uint8_t lzma_header_magic[6];
22 extern const uint8_t lzma_footer_magic[2];
26 is_backward_size_valid(const lzma_stream_flags *options)
28 return options->backward_size >= LZMA_BACKWARD_SIZE_MIN
29 && options->backward_size <= LZMA_BACKWARD_SIZE_MAX
30 && (options->backward_size & 3) == 0;