[theora] Indexing Ogg files for faster seeking

Gregory Maxwell gmaxwell at gmail.com
Thu Jan 21 17:43:45 PST 2010


On Thu, Jan 21, 2010 at 7:50 PM, Bernard Jungen
<bjung50169 at euphonynet.be> wrote:
> On Fri, Jan 22, 2010 at 12:46:46PM +1300, Chris Pearce wrote:
>> I previously tried compressing the indexes only with zlib (i.e. not
>> delta-then-variable-byte-encoding them before zlib deflating them), and
>> that got us about 50% compression.
>
> Have you tried delta+deflate, i.e. without variable encoding? And also
> with each kind of data grouped together?

Deflate isn't really going to be all that effective for this kind of
data, no matter how we slice it.

Perhaps one of us has a really simple adaptive entropy coder that
could be used. If only we knew people who did compression!


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