java - Android Media Player accuracy -

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i want make kind of karaoke app, need make ui changes @ particular moment (millisecond timing) 

mediaplayer.getduration

is not same depending on device. 

mediaplayer.getcurrentposition

gives me millisecond there not precision (it jump 200 millisecond 1 time 400 , on...)

so guys, how can accuracy want ? there audio player or audio player can use in java ?

thanks.

theoretically accuracy depend on:

1) how ask getcurrentposition(). in cases use 100 ms interval.

2) media format use

3) , critical depend on implementation. part of hw , sw related multimedia vary device device , depend on device manufacturer, hw chips , os version.

i suggest try query current position more frequently. , different media files.

possible solution:

you can use software implementation of media player (ex: ffmpeg can compiled android). negative side of cpu usage, battery drain , video decoding speed. devices cannot handle (too low fps) huge high quality video without hw acceleration provided standard mediaplayer api.


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