Safari DASH playback briefly rewinds and fast-forwards when switching video quality

FAQ

• I have read the FAQ and checked for duplicate open issues

If the problem is related to FairPlay, have you read the tutorial?

Not applicable

What version of Shaka Player are you using?

5.2.8, 4.16.47, 4.16.33

Can you reproduce the issue with our latest release version?

Yes

Can you reproduce the issue with the latest code from main?

Not tested

Are you using the demo app or your own custom app?

Both

What browser and OS are you using?

macOS 26.6.2, Safari 26.6.2

For embedded devices (smart TVs, etc.), what model and firmware version are you using?

N/A

What are the manifest and license server URIs?

Manifest: https://storage.googleapis.com/shaka-demo-assets/angel-one/dash.mpd License Server: N/A (No DRM)

What configuration are you using? What is the output of player.getNonDefaultConfiguration()?

Default

What did you do?

1. Open either the Shaka Player official demo app or a custom application using macOS Safari.

• Demo link used: Angel One Demo

1. Play the DASH stream (https://storage.googleapis.com/shaka-demo-assets/angel-one/dash.mpd).
2. Manually change the video quality track while playing. (Note: This may not happen 100% on the first try, but attempting it a few times will reproduce the issue.)

What did you expect to happen?

Playback continues seamlessly from the current position after changing video quality.

What actually happened?

Upon changing video quality, the video momentarily rewinds, then fast-forwards rapidly back to the original playback position before resuming normal playback.

https://github.com/user-attachments/assets/bd11f6e9-9ffa-44f9-831e-2ee3e80c30b9

Are you planning to send a PR to add it?

No