Mediacodec async mode

Hi,

Could you Google give a example about async mediacodec? In this doc https://developer.android.com/reference/android/media/MediaCodec.html , the preferred method to process data is async way. But I can't find a project which is working with async mode, even Google's exoplayer.

Thanks

Start with the Android MediaCodec reference linked in the issue and review the existing media samples in this repository. Determine how an async MediaCodec example should fit the sample collection; done means the repository contains a working example that demonstrates the preferred asynchronous processing mode.

Written by the indexing model from the issue text.