Impossible to have correct first frame video playback?

Is there a way to wait tell Exoplayer to load the video just enough to get its dimensions before attaching a Surface/Texture View to display it?

We have a case where we want to do some scaling & alignment but do not know the video dimensions before hand. Its a HLS adaptive stream so most likely no way to determine the video dimensions without being on device and loading and selecting track.

So far, I have to

• attach a surface first
• then the video gets loaded (which reports its size to my listener)
• only then can I do my scaling

Problem is when i attach the surface it will load & display a frame at the unwanted size, before relayout happens at the next frame, and my video size based logic then kicks in. Very jarring.

My current workaround is to measure with a size of 1 x 1 initially, this will allow the player to start loading the video and report the correct video size maybe a frame or two later and then do the scaling when I have the proper dimensions.

I would like to be able to load a HLS video (ie do the bandwidth calculations, select the correct variant, etc) before a surface is even attached.

I would also like to be able to tell from this "preloaded video" its size at the point we are configuring the player, that way I can also have my layout logic ready to be based on the video size from frame 1.