Re: Ogg encapsulation

On Sun, Apr 04, 2004 at 06:28:56PM -0400, Cosmin Truta wrote:

> If you are using zlib-1.2.1, try Z_RLE. It is about +5% slower than
> Z_HUFFMAN_ONLY, but it gives a little better compression.
> 
> If you use any of these two strategies, chances are that you might
> actually save time, compared to the uncompressed solution. This is
> because the processing overhead of Z_RLE & friend might be smaller than
> the I/O overhead incurred over the larger amount of uncompressed data.

Thanks for the optimization pointers. Good point about data rates.
As always, profile first. :)

Having done some more reading, I can confirm that zlib supports 
uncompressed data. One just has to insert a 3 byte block header every 
64 kB. This has the advantage that a very thin and stupid code can dump 
out data in legal form without depending on zlib and libpng.

 -r

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