Re: bandwidth limits
Re: bandwidth limits
- Subject: Re: bandwidth limits
- From: Bill Stewart <email@hidden>
- Date: Tue, 23 Sep 2003 15:15:57 -0700
Roman, et al,
On Tuesday, September 23, 2003, at 09:12 AM, Roman Thilenius wrote:
you will not use any compression for realtime streaming of audio or
video,
that would need a bit too much CPU.
Not at all sure what you mean here.
QT's Broadcaster is able to broadcast using AAC (and other audio
codecs), speech based codecs like CELP, etc, also do not consume that
much CPU either and all of these are entirely usable in a real-time
situation. (For instance, AAC on an 800MHz iMac is somewhere in the
vicinity of 10% or "real" time for encoding. Decoding AAC on a similar
machine is now around 1-2% CPU usage).
You should do some research on the time these processes take as they
are in *very* common use (in fact far more use than doing NO
compression because the data rates are typically far more crucial and
limiting a factor than the CPU needed to compress the data within
real-time constraints) - this applies to video even more so than for
audio
Bill
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