[theora-dev] Block Coding Pattern

[Dan Miller]

yeah, I noticed that while working on the spec.  It looks to me like an experiment that never converged.  However I will be looking closely at these sorts of issues as I complete the spec.  Eventually we will get rid of the deadwood.

        -----Original Message----- 
        From: Mike Melanson [mailto:melanson at pcisys.net] 
        Sent: Wed 2/19/2003 9:07 PM 
        To: theora-dev at xiph.org 
        Cc: 
        Subject: [theora-dev] Block Coding Pattern
        
        

        Hi,
                There seem to be 2 sets of block coding patterns in the
        VP3x/Theora algorithm. Based on the comments in the code, the first
        pattern is used if encoder version < 6 and the second pattern is used in
        encoder version >= 6. None of the code to support the second pattern is
        ever called. Is there an encoder with a version >= 6?
        
                The code in question is QuadDecodeDisplayFragments() vs.
        QuadDecodeDisplayFragments2() in CoreLibs/CDXV/Vp31/dx/generic/Frarray.c.
        They follow different pattern rules. But the second version is never
        called.
        
                Thanks...
        --
                -Mike Melanson
        
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