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March 21, 2005

QuickTime Latency

I have done exhaustive research regarding this in the past but I still have persistent problems with latency when using QuickTime or MPEG-4 streaming in my projects so I am doing the research again (and posting it here so I can find it later).

Here are the links for further examination (from Apple's Mailing Lists):
Latency on Streaming Server - Some information - How to change a setting on the QTSS that controls one aspect of latency created by the server.
Re: latency problem - Explains the reasoning for the latency from Apple's point of view.
Re: Instant-On & double frame rate - Gives a rundown on editing the server config to reduce latency.
Re: Video conferencing - More of the same
Getting real-time streaming to be more real-time - interesting note regarding specifing time stamp increments in video/audio samples to reduce latency. A major hack.
Re: I found there are more than 7 seconds time delay between the real live - More about what the latency is all about.
Re: Getting real-time streaming to be more real-time - Change the SDP file to set the default buffer on the player lower.
Re: Streaming latency between two separate computers - Use multicast
Re: Request for User-Configurable Latency Parameters - One of the original emails quoted above for changing latency parameters.
Re: buffering time - Changing buffering time in home made QT playback app (using QT API, should therefore work with QT4J).
Re: buffering time - More of the same.

Last: Use these libraries to build own streaming server and client: LIVE.COM Streaming Media: RTP/RTCP and RTSP Open Source Libraries

Ok.. now to try out all of the possibilities..

Posted by vanevery at 02:29 PM

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Comments

Posted by: Ryan at March 24, 2005 11:26 AM

Posted by: Ryan at March 24, 2005 11:30 AM