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More information about updates to IPP-zlib?

s_elgas
Beginner
‎04-14-2010 09:15 AM
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This is in reference to 6.1 update 5:

DPD200151952 IPP-zlib compress generates spurious compressed data that cannot be decompressed.

I wondered if I could get more information on this fix, I've been using IPP-zlib compression for a video codec and am not sure if the bug fix applies to my particular case.
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PaulF_IntelCorp
Employee
‎04-14-2010 02:37 PM
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Some details related to this problem follow:

If the IPP deflate function is calledrepeatedly withina user's buffer with a size in the range of [(32k-258)..32k] , a problem with the window update appears. It is very rare casebut can affect anyone that uses this mode.

Paul
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Ying_S_Intel
Employee
‎04-14-2010 07:35 PM
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Here is the bug defect report with explanation.

http://software.intel.com/en-us/articles/ipp-zlib-compression-error/

Thanks,
Ying
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