Synchronize multiple audio and video tracks

[marcway]

I have developed an iOS application that combines multiple video and audio streams playing simultaneously, using AVMutableComposition. The user can stream a video and control the volume of each audio track (bass, drums, guitar...)

I have been researching for hours and I cannot find a way of doing it in Android. Have tried with few MediaPlayer (but even in some devices as Nexus 5 they won't play simultaneously), ExoPlayer (but doesn't allow multiple audio tracks at the same time), Vitamio (cannot find a way of play multiple audio tracks simultaneosly), etc.

Does anyone knows how yo do it?

Thanks!

 

[Deleted User]

Did you create multiple MediaPlayer objects?

 

[marcway]

Yes, even it's not an elegant way of doing a composition, I tried. And it's not working in some devices: https://stackoverflow.com/questions/21894094/multiple-mediaplayers-do-not-work-on-nexus-5