[theora-dev] Keyframe seeking in Ogg and spec
xiphmont at xiph.org
Sat Sep 14 14:01:26 PDT 2002
> Shouldn't we include metadata that indicates which packets can be
> ignored to create a lower bandwidth version of the stream?
> How does
> Vorbis do this?
The key here is that Vorbis does this, not Ogg.
> What I'm refering to is the ability to take an,
> e.g. 128 Kbps stream and create the 64 Kbps stream that *would* have
> been created, had the material been encoded at 64 Kbps to begin with,
> not just re-lossy-compressing an existing compressed stream.
The vorbis codec knows how to truncate packets. This is a codec-level
operation, not an Ogg level operation.
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