[foms] Proposal: adaptive streaming using open codecs
Christopher Blizzard
blizzard at mozilla.com
Fri Nov 19 14:00:31 PST 2010
On 11/17/2010 10:15 AM, Timothy B. Terriberry wrote:
> Probably because I meant LPC (linear prediction coefficients), not LSP
> (line spectral pairs). The concepts are related.
>
> Vorbis, for example, already uses LPC extrapolation to pad the first and
> last MDCT blocks, since blocks are overlapped, but there's no real data
> to overlap with at the beginning and end of a track. Code starts at
> https://trac.xiph.org/browser/trunk/vorbis/lib/block.c#L416
Working code helps here and might settle discussions about what might
work and what might not. Does someone here that knows how to write
software be willing to come up with some fair demos of what audio
bitrate switching might look like?
--Chris
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