Re: iphone: realtime packet-based compression of remote io data
Re: iphone: realtime packet-based compression of remote io data
- Subject: Re: iphone: realtime packet-based compression of remote io data
- From: Jens Alfke <email@hidden>
- Date: Thu, 12 Feb 2009 08:08:39 -0800
On Feb 12, 2009, at 3:51 AM, Joel Reymont wrote:
What is the best technique to lower bandwidth that applies to my
usage scenario?
My understanding is that I could establish a compression "context"
if I was streaming and all would be well. I'm shooting out quick
bursts of data, though, and Remote I/O only supports LPCM.
This is one of the reasons I earlier recommended using TCP sockets to
unicast the audio to each listener :) With TCP you can use streaming,
which is what CA is set up to do.
Clearly it is possible to send highly compressed audio in individual
packets, with packet loss being tolerated, since that's how A/V
conferencing protocols like RTSP (and Skype?) work. But I don't know
how they compress the audio into freestanding packets. You might
search on "RTSP" and do some research…
—Jens _______________________________________________
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