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Thank you, Ralph.<br>
<br>
I am a newbie in multimedia codec/delivery area, but i think there is
some way to get that effect. <br>
Can anyone give some suggestions, refer links/papers or anything else
about this research? <br>
<br>
<blockquote cite="mid20050922060434.GA25711@ghostscript.com" type="cite">
<blockquote type="cite">
<pre wrap="">The sender encode the high quality video to a few sub-streams to cast
on network thru p2p tech. Each sub-streams carries differrent content
with differrent priority or quality-level of the video. The receivers
receive the higher priority sub-stream first, maybe can not receive all
the sub-streams, only some high priority sub-streams, then assemble the
sub-streams together to the decoder. So the receiver can get variable
vedio quality adapt to the internet bandwidth.<br>
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<blockquote type="cite">
<pre wrap="">In this way, the sender need encode the video once, and differrent
receivers get differrent quality according to its network status.<br>
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<blockquote cite="mid20050922060434.GA25711@ghostscript.com" type="cite">
<pre wrap="">Yes, this is clear. Thank you for explaining.
There's no explicit support for this in theora, and it's not obvious
to me how this sort of scalability could be made to work with the
current packet format. The design pretty much just assumes reliable
delivery. It would be an interesting area of research if you have
something to propose.
</pre>
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