HLS: Roll-Up 608 closed captions prematurely wrap

Originator:brian
Number:rdar://19649679 Date Originated:2015-01-29
Status:Open Resolved:
Product:iOS Product Version:8.1.3 (12B466)
Classification:UI Reproducible:Always
 
Summary:
When viewing embedded (608) roll-up closed captions in an HLS asset on an iOS 8 device (including iOS 8.1.3), they do not render correctly. The lines seem to prematurely wrap. The exact same stream renders correctly with previous versions of iOS as well as other players (VLC, QuickTime, etc).

Steps to Reproduce:
Place files (m3u8 and ts) on a web server. Point iOS Safari to the master m3u8 playlist. Enable subtitles.

Expected Results:
Correctly formatted 608 roll-up captions, without the strange line wrapping.

Actual Results:
The 608 roll-up captions render with strange premature line wraps on each line.

Version:
8.1.3 (12B466)

Notes:


Configuration:
iPad Air, 64GB

Comments


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!