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Bug 23030 - [WebVTT] Clarify text position calculation
Summary: [WebVTT] Clarify text position calculation
Status: RESOLVED FIXED
Alias: None
Product: TextTracks CG
Classification: Unclassified
Component: WebVTT (show other bugs)
Version: unspecified
Hardware: PC Linux
: P2 normal
Target Milestone: ---
Assignee: Silvia Pfeiffer
QA Contact: This bug has no owner yet - up for the taking
URL:
Whiteboard: v1
Keywords:
Depends on:
Blocks:
 
Reported: 2013-08-21 08:15 UTC by rpuri
Modified: 2014-01-29 11:32 UTC (History)
4 users (show)

See Also:


Attachments

Description rpuri 2013-08-21 08:15:12 UTC
While going through https://dvcs.w3.org/hg/text-tracks/raw-file/default/webvtt/webvtt.html (dated Auugust 21, 2013), i noticed the following two statements:

1. "If the writing direction is horizontal, then line position percentages are relative to the height of the video, and text position and size percentages are relative to the width of the video."

2. "A number giving the position of the text within the cue box. If the cue is not within a region, the value is to be interpreted as a percentage of the box's size, otherwise as a percentage of the region width."

Specfically, it appears that the interpretation of text position percentage is different between the above two statements when size is not equal to 100% (assuming regions are not used) 

Is my concern express aboved justified? If so, what is the correct interpretation?
Comment 1 Philip J├Ągenstedt 2014-01-29 11:32:32 UTC
(In reply to rpuri from comment #0)
> While going through
> https://dvcs.w3.org/hg/text-tracks/raw-file/default/webvtt/webvtt.html
> (dated Auugust 21, 2013), i noticed the following two statements:
> 
> 1. "If the writing direction is horizontal, then line position percentages
> are relative to the height of the video, and text position and size
> percentages are relative to the width of the video."
> 
> 2. "A number giving the position of the text within the cue box. If the cue
> is not within a region, the value is to be interpreted as a percentage of
> the box's size, otherwise as a percentage of the region width."
> 
> Specfically, it appears that the interpretation of text position percentage
> is different between the above two statements when size is not equal to 100%
> (assuming regions are not used) 
> 
> Is my concern express aboved justified? If so, what is the correct
> interpretation?

You were justified, the use of "box's size" was strange. Silvia fixed this as part of https://www.w3.org/Bugs/Public/show_bug.cgi?id=20037 in October 2013, so I am closing this bug as fixed. Please reopen if you think the new wording is also contradictory.