is it possible to reduce dictionary size (obtained from lzma header) during decoding of lzma encoded file

yogender
2014-02-21
2014-02-21
  • yogender

    yogender - 2014-02-21

    suppose we encode a file with lzma with default dictionary size i.e.8MB (may be less).
    then while decoding we have a allocate memory to dictionary buffer with size which is obtained from lzma header(5 byte header) during lzmaInit().
    since i'm having some memory constraints..so is it possible to decode it with less dictionary size .
    lzma.exe provides an argument for setting dictionary size while encoding and decoding.
    but source code doesn't takes 4th argument.

     
    Last edit: yogender 2014-02-21
  • Igor Pavlov

    Igor Pavlov - 2014-02-21

    Read lzma.txt
    7-zip needs for decoding:
    ram_buffer_size = min(dictionary_size, uncompressed_size)

     

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