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Method and apparatus for calculating estimated data compression ratio

  • US 9,722,631 B2
  • Filed: 01/03/2017
  • Issued: 08/01/2017
  • Est. Priority Date: 07/11/2014
  • Status: Active Grant
First Claim
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1. A method for calculating an estimated data compression ratio, comprising:

  • parsing to-be-compressed data to obtain a symbol sequence;

    obtaining a related indicator of the symbol sequence, wherein the related indicator is used to represent a distribution pattern of symbols in the symbol sequence;

    calculating, according to the related indicator, an estimated coding length obtained after the to-be-compressed data is coded using a specified coding mode; and

    using a ratio of the estimated coding length obtained by calculation to an initial length of the to-be-compressed data as an estimated compression ratio of the to-be-compressed data.

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