Play a specific portion of a video but display the whole video?

[PranjalDesai]

Searched documentation and issues

I have looked at ClippingMediaSource.

Question

I want to play a video from url. The whole video shows on the seek bar and player but it starts playing from a specific point and pauses at a specific point. The user can press play and continue watching the rest of the video. How can I achieve that?

[tonihei]

it starts playing from a specific point

You can call player.seekTo before player.prepare to ensure the video starts from the desired position.

and pauses at a specific point.

You can send a message that gets triggered at this point and pauses the player:

player.createMessage((type, payload) -> player.setPlayWhenReady(false))
  .setHandler(new Handler()).setPositionMs(pausePosition).send();

The user can press play and continue watching the rest of the video.

That just works with the method above because the video is paused in the normal way.

[PranjalDesai]

That works for a single video but if you have multiple videos being passed as ConcatenatingMediaSource than how do you handle starting point for each video?

[tonihei]

That's unfortunately not yet supported but tracked by #6373.

If you need such a feature urgently, you can make it (mostly) work by writing a MediaSource wrapper that returns a Timeline wrapper that sets your start position as windowDefaultStartPositionUs.

[PranjalDesai]

Awesome thanks!