Added UI and logic implementation for the following export settings:
* Output audio MIME type
* Output video MIME type
* Enable debug tracing
* Use Media3 Muxer
* Produce fragmented MP4
The settings are shown in a dialog when `Export` button is clicked.
PiperOrigin-RevId: 685648147
Added UI and logic implementation for HDR mode and Resolution Height to be used as settings for both previewing and exporting.
PiperOrigin-RevId: 684011852
This class is not ready for production app usage yet, so it is still
marked `@RestrictTo(LIBRARY_GROUP)` for now. Apps can experiment with it
in a non-prod context by suppressing the associated lint error.
* Issue: androidx/media#1014
* Issue: androidx/media#1185
* Issue: androidx/media#816
PiperOrigin-RevId: 633921353
