Fixes #13904 - ExoPlayer can't start a new audio from a seek point

[Sagar0-0]

Closes #13904

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Description

After doing some research I have found that exoplayer can not seek to a position if it does not have the required information for the file, and it can only get the information once it is ready, so we need to first call the play.prepare(), but this does not guarantee that after this line the player will be ready and got the required information, so need to add a callback that will seek to the required position for the first audio file.

Screenshot after fixing:

document_6064240865558139971.mp4

NOTE:

This solution is only applicable if we are playing one audio and won't work for consecutive audio plays, as we only have the progress/seek position information for the first audio file when consecutive call is made.

Possible solution:
We might need to pass or store the progress information of all the consecutive audio files we are about to play. This can require a larger refactoring of the Controller file, so I have not touched it yet.