Re: Compression for Animation? that:
>Ugh.. I've been working on this all night. If you guys/gals could
>check out the compression on my show it would be appreciated!
>http://madlymedia.com/dummycast/DummySHOW1.mov direct link
>mpg-4, quality high, keyframe 5,bit rate 600 k/sec.,320x240,It's
>tougth a mix with animation and other elements.
>www.dummycast.com
ok,
1. use a dual pass codec (eg 3ivx if you don't want h.264)
2. do not set manual keyframes let it set keyframes naturally
3. funky transitions are funky, but require lot of bandwidth and
these are always data spikes. this is why use variable bit rate codec
with 2 pass since the codec can work out where it needs the data (eg
your talking head bits are much lower in requirements than animated
transitions).
4. the only other thing is a lot of the footage which isn't yours is
prob. already compressed. compressing compressed stuff you're on a
hiding to nothing. it already has artefacts in it (noise), the codec
is optimised to hide noise, so when there is noise and it needs to
deal with noise it will become noisier (this is very visible in the
band footage where the 16 x 16 blocks are clear, this is probably
result of compressing the compressed).
--
cheers
Adrian Miles
hypertext.RMIT
<URL:http://hypertext.rmit.edu.au/vlog>
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