Window.windowStartTimeMs is TIME_UNSET for HLS-skip streams which include #EXT-X-PROGRAM-DATE-TIME only for initial manifest

Version

Media3 1.8.0

More version details

No response

Devices that reproduce the issue

Any

Devices that do not reproduce the issue

None

Reproducible in the demo app?

Yes

Reproduction steps

Play a HLS-skip stream until manifest update comes - Window.windowStartTimeMs becomes TIME_UNSET

Expected result

Window.windowStartTimeMs remains as what it was in the initial manifest if it's not included in the manifest delta update

Actual result

Window.windowStartTimeMs becomes TIME_UNSET if #EXT-X-PROGRAM-DATE-TIME is not present in the HLS-skip delta update

Media

I can provide test streams if needed (the test streams I provided earlier should still work)

Bug Report

• You will email the zip file produced by adb bugreport to android-media-github@google.com after filing this issue.