initializationData not correct when there is null character in ass subtitle.

[peerless2012]

Version

Media3 1.8.0

More version details

Release v1.8.0

Devices that reproduce the issue

Pixel 6a

Devices that do not reproduce the issue

No

Reproducible in the demo app?

Yes

Reproduction steps

Add test mkv and play.

Expected result

initializationData has the correct data

Actual result

initializationData data only has part of data, and the data break due to the zero data before [Events] tag.

Media

See:

• ASS subtitles embedded in MKV files sometimes don't display
• ASS encoder inserts null character into middle of output
• Null Character in ASS subtitle Prevents Subtitles from Rendering

Bug Report

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

[ethaldeman]

This issue was prompted by my issue on libass-andorid at peerless2012/libass-android#55 . Attached is a zip of an mkv that can be used to test this issues.

broken_ass_subtitles.zip