28071 – [WebVTT] The concept of line position is unnecessarily used when writing direction is introduced

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Bug 28071 - [WebVTT] The concept of line position is unnecessarily used when writing direction is introduced

Summary: [WebVTT] The concept of line position is unnecessarily used when writing dire...

Status:	RESOLVED MOVED

Alias:	None

Product:	TextTracks CG
Classification:	Unclassified
Component:	WebVTT (show other bugs)
Version:	unspecified
Hardware:	PC All

Importance:	P2 normal
Target Milestone:	---
Assignee:	This bug has no owner yet - up for the taking
QA Contact:	Web Media Text Tracks CG

URL:
Whiteboard:	v1 widereview
Keywords:

Depends on:
Blocks:

Reported:	2015-02-22 10:22 UTC by Silvia Pfeiffer
Modified:	2017-07-10 06:03 UTC (History)
CC List:	5 users (show)

See Also:

Attachments

Description Silvia Pfeiffer 2015-02-22 10:22:33 UTC

These lines can be moved down:

"
If the writing direction is horizontal, then the 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.

Otherwise, line position percentages are relative to the width of the video, and text position and size percentages are relative to the height of the video.
"

As per feedback from Andreas Tai:
http://lists.w3.org/Archives/Public/public-texttracks/2015Feb/0005.html

Comment 1 Philip Jägenstedt 2015-02-25 06:14:39 UTC

I tried moving them, but these paragraphs talk about the influence of writing direction on the interpretation of line position AND text position. Splitting them to spread them into those two sections wouldn't make things clearer, IMHO.

Comment 2 Philip Jägenstedt 2015-02-25 06:20:57 UTC

I found an unrelated problem close by: https://github.com/w3c/webvtt/pull/174

Comment 3 Silvia Pfeiffer 2015-03-08 11:08:53 UTC

We could turn these into notes, seeing as this information is duplicated later on?

Comment 4 Philip Jägenstedt 2015-03-09 10:24:16 UTC

AFAICT it's not given in any detail later, it just says "to be interpreted as defined by the writing direction" and similar things.

So... I don't know. Maybe moving it into the later sections would be an improvement even if it duplicates the sentence structure.

Comment 5 Andreas Tai 2015-03-22 15:40:45 UTC

From my view it makes sense to split it up and move it further down. Note that it has to go as well under "size". For writing direction an informative note maybe sufficient as the interpretation of writing direction does not depend on the other features. The text of the note could be something like "Please note that the computed value of writing direction does affect the interpretation of text position percentages, line position percentages and size percentages".

Comment 6 David Singer 2016-10-11 16:55:43 UTC

We think we should replace this normative text by a note that says "Note that writing direction affects the interpretation of line, position, and size" and then these two paragraphs should be placed correctly to define position, line and size. as they *use* writing direction to give meaning to a value, i.e. they are not about writing direction per se.

Comment 7 Simon Pieters 2016-10-18 11:13:08 UTC

https://github.com/w3c/webvtt/issues/315

Comment 8 Andreas Tai 2017-07-10 06:03:54 UTC

Thanks for resolving this issue.