On 1/29/20 12:09 AM, Peng Yu wrote:
Hi,
I'd like to tell what part is zlib.compress data in an input stream.
One way is to use some characters that never appear in zlib.compress
output to denote the boundary. Are there such characters? Thanks.
A compression routine that avoid one byte value would be less efficient
at compression then one that uses all the values.
An alternative might be to precede the compressed data with a byte count
of how much data will follow (as well as whatever file code you use to
indicate that the next data IS compressed data.
A second method would be to take some byte value, (like FF) and where
ever it occurs in the compressed data, replace it with a doubled value
FF FF, and then add a single FF to the end.
--
Richard Damon
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