Allow enabling of Media3 "Legacy Text Decoding"

I confirm this is a Feature Request and NOT a support/technical query. Please use your Bitmovin Dashboard for raising support tickets.

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Player

Description

In Media3 version 1.4.0-alpha02, Google changed the way Text track Decoding/Rendering works. Depending on the Subtitle encoding, ExoPlayer is sometimes unable to show the subtitle text due to this new method.

Google provided a method of switching back to the Legacy method of Subtitle decoding/rendering if the user wants.

Please consider exposing this Media3 setting in the Bitmovin Player so that we can switch back to using the Legacy Text Decoding.

Details can be seen in the release notes here: Release 1.4.0-alpha02 · androidx/media · GitHub