All of the footage is mine, some new, some old...
thanks,
jad
www.dummycast.com
--- In videoblogging@yahoogroups.com, Adrian Miles <[EMAIL PROTECTED]>
wrote:
> around the 8/8/05 James A. Donnelly mentioned about [videoblogging]
> 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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