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ios - Play/Forward video in 2x 3x 4x speed - iPhone SDK

I want to play/forward video in MPMoviePlayerController with different speeds. Can any one suggest me how i do this.

Right now i am doing fast forward (On single speed) but in few seconds it come back on normal speed.

Please suggest.

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MPMoviePlayerController Conforms to MPMediaPlayback protocol 
you can see the property currentPlaybackRate as :-
@property(nonatomic) float currentPlaybackRate 
A value of 0 represents that the video is stopped , a value of 1 indicates normal speed and further positive values indicate increased speed while negative ones indicate reverse .

Also check your endseeking delegate method of MPMediaPlayback as it is the only method that reverts the playback to normal


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