Support amr format file

[Charles-ljc]

When I play an AMR NB format file recorded by android.media.MediaRecorder, I got an error "UnrecognizedInputFormatException: None of the available extractors could read the stream".
Is this format not supported?

[ojw28]

Please can you attach a sample stream to this issue, or email one to dev.exoplayer@gmail.com (and update this issue to indicate that you've done so)? Thanks!

[Charles-ljc]

A sample was emailed to that address.

[altair441n]

@liujinchaoDS @ojw28 I met same problem.What's the any solution?