PassThroughTrackTranscoder supports not checking MediaFormatValidator

[Satsrag]

Thanks for your sharing. I use this feature in my project. If it is not used here, refuse it.

• PassThroughTrackTranscoder copy track to output mp4 container. The mimetype of mp4 track is more than just a video/avc, there are other mimetypes. For example, video/hevc, video/mp 4v-es... and so on. So PassThroughTrackTranscoder#getDeterminedFormat() returns null to prevent checking MediaFormatValidator.

[natario1]

I think this makes sense but can't accept the way it's done - we have removed this listener a few commits ago and we don't want to reintroduce it.

You could remove all these commits and add a boolean to TranscoderMuxer.setOutputFormat:

public void setOutputFormat(@NonNull TrackType trackType, @NonNull MediaFormat format, boolean needsValidation)

[Satsrag]

add a boolean to TranscoderMuxer.setOutputFormat

[natario1]

Thank you @Saqrag !