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w3c / imsc

TTML Profiles for Internet Media Subtitles and Captions (IMSC)
https://w3c.github.io/imsc/
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itts:forcedDisplay should apply to image element in image profile #493

Open skynavga opened 5 years ago

palemieux commented 5 years ago

itts:forcedDisplay already applies to div so I do not think this is necessary.

nigelmegitt commented 4 years ago

@skynavga we'd like to be able to resolve this before or during Thursday's call if possible.

skynavga commented 4 years ago

but div is not image

palemieux commented 4 years ago

Applying itts:forcedDisplay to the parent div of an image has the effect as applying it to image (for Image Profile document).

skynavga commented 4 years ago

ok, but an author should be able to apply it to the image itself alone, yes?

palemieux commented 4 years ago

ok, but an author should be able to apply it to the image itself alone, yes?

Not necessary in IMSC, and itts:forcedDisplay is an IMSC extension.

My overriding suggestion is to avoid making any change to the Image Profile unless absolutely necessary.

nigelmegitt commented 4 years ago

ok, but an author should be able to apply it to the image itself alone, yes?

@skynavga It'd be helpful to know what's driving this request - for example are there users or practitioners who have been in touch with you to complain about this omission? If it's a point of principle alone, I don't disagree that in an ideal world the semantic makes more sense if we could apply forcedDisplay directly to the image, but I would also back @palemieux 's thinking that we have a way to achieve the same effect and that making changes to the Image Profile is something we should be super reluctant to do without a strong motive, i.e. I'd also do nothing.

skynavga commented 4 years ago

No, there was no external input. This came up during work on TTV support for IMSC1.1 and review of upcoming IMSC1.2 semantics w.r.t. semantic symmetry and consistency.

css-meeting-bot commented 4 years ago

The Timed Text Working Group just discussed itts:forcedDisplay should apply to image element in image profile imsc#493, and agreed to the following:

The full IRC log of that discussion <nigel> Topic: itts:forcedDisplay should apply to image element in image profile imsc#493
<nigel> github: https://github.com/w3c/imsc/issues/493
<nigel> Pierre: This is a direct parallel to #490. forced Display applies to div and not image.
<nigel> .. This is fine in Image profile because there's a 1:1 mapping between images and divs, so I suggest the same
<nigel> .. disposition, which is not to address in IMSC 1.2 but leave on the backlog.
<nigel> Nigel: I took the step for this one of checking in with Glenn on the driver for the issue and it seems
<nigel> .. to be one of semantic asymmetry and inconsistency. I take the view also that this inconsistency is not great
<nigel> .. but is not enough of a motivation in itself to make a change at this time.
<nigel> PROPOSAL: We will not address this in IMSC 1.2 but leave on the backlog for potentially fixing in some future version.
<nigel> Nigel: Any objections?
<nigel> group: [no objections]
<nigel> RESOLUTION: We will not address this in IMSC 1.2 but leave on the backlog for potentially fixing in some future version.