[theora-dev] VP3 IDCT

Dan Miller dan at on2.com
Thu Mar 6 11:04:19 PST 2003

> From: Michael Niedermayer [mailto:michaelni at gmx.at]

> btw, why does theora store the histograms, instead of just 
> the code lengths
> 16bit *80*32 for the histogram     -> 5120byte
> 5bit*80*32   for the code lengthes -> 1699byte
> and with some difference encoding for the code lengthes it 
> will be another 
> 2-3x smaller

guilty as charged.  This was quick work to get the concept of a global header with codec-specific data working.  Assuming the histogram has no meaning to the decoder except to figure the code lengths (sounds right to me), I will consider changing this as suggested.  Note the bitstream is NOT considered stable until Beta release.  Encode at your own risk!

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