[Live-devel] What does fScaleFactor mean?

[Ross Finlayson]

>I'm trying to write my own WAVAudioFileSource.

What's wrong with the one you have? :-)

>  But after reading the original one carefully, there is a question quit 
> puzzled me: what does fScaleFactor mean?

It's used to implement RTSP 'trick play' support (i.e, fast forward, 
reverse play) when a RTSP server is streaming from a WAV audio file.

E.g., to stream a file at 2x the normal speed, "fScaleFactor" is set to 2, 
which causes every second audio sample to be read (instead of every audio 
sample - the normal case).  If "fScaleFactor" is set to -1, then every 
sample is read, but in reverse.


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>