[theora-dev] Multiplexed Ogg and header problems.
dan at on2.com
Fri Nov 8 11:33:51 PST 2002
good question. We have this functionality in our On2 server platform (TrueCast). It works great for limited/variable bandwidth situations ie internet at say 150 - 400 kbits/sec. Would love to see this in OGG.
From: Alejandro G. Belluscio [mailto:baldusi at uol.com.ar]
Sent: Fri 11/8/2002 2:13 PM
To: theora-dev at xiph.org
Subject: [theora-dev] Multiplexed Ogg and header problems.
I there was a discussion on the vorbis list about Real Audio
SureStream (tm) format. The basic idea was that they put multiple RA
files with different compression levels. So when they have to switch
the bit rate due to bandwidth changes, they choose from the streams
they have. Since peeling is a long time away, it could be implemented
with ogg vorbis multiplexing several times the same file with
different compression levels. My question (and I think Monty can
answer it) is how should the the presence of multiple concurrent
vorbis streams be handled. Because if you have multiple audio tracks
for a movie, or you have multiple compression rates it's very similar.
The only problem seems to identify what's each of those streams for.
In other word, how should I know that stream A is Swahili and stream B
is Speranto, or that stream A is the -q3 compressed and Stream B is
the -q1 compressed?
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