[Bug 22989] New: [WebVTT]

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22989

            Bug ID: 22989
           Summary: [WebVTT]
    Classification: Unclassified
           Product: TextTracks CG
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: WebVTT
          Assignee: silviapfeiffer1@gmail.com
          Reporter: rpuri@netflix.com
        QA Contact: dave.null@w3.org
                CC: mike@w3.org, public-texttracks@w3.org

I am having trouble following a portion of the spec outlined in the latest
editor's draft obtainable from:
https://dvcs.w3.org/hg/text-tracks/raw-file/default/webvtt/webvtt.html

Please note the following:

1. At one place in the document, a statement is made regarding the position of
'cue box' within the video frame. Specifically, it is said that:

"The position of the cue box within the video frame's dimensions depends on the
value of the computed text position anchor point."

It appears that the above statement specifies the position of the 'cue box' in
relation to the 'value of the computed text position anchor point'.

2. At another place in the document, the following statement is made:

"The value of the computed text position anchor point is set as follows:"
...
...
...
"4. For left aligned cues with left-to-right paragraph direction [BIDI]: the
first character of each line of text is positioned at the text track cue text
position point within the video frame, otherwise the last character is
positioned there."

It appears that the above statement specified the 'value of the computed text
position anchor point' in relation to 'text track cue text position' point
within the video frame.

3. At another place in the document, 'text track cue text position' is defined
as:

"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"

>From above, it appears that 'text track cue text position' is defined in
relation to the 'cue box'.

This appears like an infnite loop to me. Am i reading this incorrectly or is
there a bug here?

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Received on Saturday, 17 August 2013 00:04:22 UTC