[Webkit-unassigned] [Bug 159467] New: WebVTT: Various (Position) issues when using line percentage

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159467

            Bug ID: 159467
           Summary: WebVTT: Various (Position) issues when using line
                    percentage
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebKit API
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: john.streckfuss at aesirmedia.com

Created attachment 282893
  --> https://bugs.webkit.org/attachment.cgi?id=282893&action=review
Shows the output of the WebVTT file

Positioning and clipping issues:

Hello World 1, is not set to 8 percent instead it set close to the edge of the left side of the screen about 2%

Hello World 2, is clipping its content to when aligned to the right, at minimum it should display the ending content and clip the starting content.

8HelloWorld and 9HelloWorld demonstrate the clipping issues when displayed to the right.

Alignment issues:

HelloWorld B, seems to be correct at 50% pos, 50% line the following is based on this captions

HelloWorld C, seems to be correct when set to be right aligned

HelloWorld A is Incorrect, it should be set where HelloWorldE is displayed.


WEBVTT

00:00:00.000 --> 00:00:10.000 line:10% position:20% align:middle
20%

00:00:00.000 --> 00:00:10.000 line:20% position:8% align:left
Hello world 1.

00:00:00.000 --> 00:00:10.000 line:30% position:20% align:right
Hello world 2.

00:00:00.000 --> 00:00:10.000 line:40% position:50% align:left
Hello world A.

00:00:00.000 --> 00:00:10.000 line:40% position:71% align:left
Hello world E.

00:00:00.000 --> 00:00:10.000 line:50% position:50% align:middle
Hello world B.

00:00:00.000 --> 00:00:10.000 line:60% position:50% align:right
Hello world C.

00:00:00.000 --> 00:00:10.000 line:70% position:90% align:left
8 Hello world.

00:00:00.000 --> 00:00:10.000 line:80% position:85% align:left
9 Hello world.

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