Added Variable Playback Speed Feature

[Dabuk]

Added Playback Speed change feature with sliderUI in exampleApp.
Relevant comments written.

[pcbeard]

I cleaned this patch up a little bit and tested it:

https://github.com/pcbeard/StreamingKit/tree/PlaybackRate

It works, but if you set the audio rate to > 1for a network stream, the audio stops, because obviously it's not arriving at the rate it's being played.

[Dabuk]

What network streaming are you referencing to? Live streaming or a media link? If it's a media link it should work because streaming kit is deigned to pull more data off the stream as it is consumed. I have tested it for 2x..works fine..

[pcbeard]

Live streaming of course. There's no practical way to speed that up. Perhaps we should only selectively enable if the stream is able to read farther ahead?

[Sapanesh]

@pcbeard
Hi ,
I used your branch..but audio quality decreased after change playback rate.

Please suggest.

Thanks,

[anandmahajan]

Hi

@Dabuk @kevinrenskers

So quality really bad after change playback rate..Can you please help ?
Or any Solution ?

Thanks

[QB3L]

I also tested this one and it works like a charm. @tumtumtum can we get it approved and merged?

[dong136279559]

I also need the function of rate. Could the author provide help
@tumtumtum