Video block when switch between two textureViews on Redmi Note 4

[tuesda]

Issue description

Video block when switch between two texture views on Redmi Note 4

Reproduction steps

1. Setup two texture views in a activity
2. Start play a video with first texture view
3. Set second texture view as video display view when click second texture view
4. You will find that audio is normal but frame block for a few seconds

Link to test content

This issue is not related with video content

Version of ExoPlayer being used

ExoPlayer version: 2.7.2 and 2.7.3
but 2.7.1 doesn't have this issue, so I think this issue occur with 2.7.2 firstly

Device(s) and version(s) of Android being used

Redmi Note 4

A full bug report captured from the device

[ojw28]

We disabled seamless surface switching on Redmi Note 4 because others were reporting that it caused ANR issues. See #4006 for details. Did surface switching always work reliably for you, on this device?

It may be that we need to target the workaround more specifically to cases where DummySurface is being used, since perhaps that's the only case to which the ANR issue applies.

[tuesda]

Thanks for your reply!
Is there a api for checking if the device can seamless switching?
We don't find ANR issues for now.

[tuesda]

Is better dispatching a buffer state for devices like Redmi Note 4 when switching surfaces, rather than frame block while audio is normal playing.

Thanks

[ojw28]

Is there a api for checking if the device can seamless switching?

No, however:

• It's not available on any device where Util.SDK_INT < 23.
• You can look at MediaCodecVideoRenderer.codecNeedsSetOutputSurfaceWorkaround to see where we're disabling it on devices for wihch Util.SDK_INT >= 23.

Is better dispatching a buffer state for devices like Redmi Note 4 when switching surfaces, rather than frame block while audio is normal playing.

You can do this by triggering a seek call on the player at the same time as you swap the surface (the seek call should occur immediately afterwards).