Hi David, On 24 Feb 2015 06:46, "David Singer" <singer@apple.com> wrote: > > > > On Feb 21, 2015, at 23:10 , Silvia Pfeiffer <silviapfeiffer1@gmail.com> wrote: > > > > Note that I have made a new suggestion as to how to deal with inline > > styles in VTT. > > https://www.w3.org/Bugs/Public/show_bug.cgi?id=15023#c15 > > > > If that is agreeable and it is a requirement to be added before we go > > to CR, I can write the spec for that (assuming Philip agrees with the > > proposed approach). > > we had a long discussion on this several years back. I’ll try to resurrect the questions > > 1) can new styles occur only in the header, or throughout the file? > I commented on the bug: currently VTT files are beautifully incremental and random accessible; allowing styles to occur anywhere and persist to end of file would badly impact that. Can we do the 90%+ case and have styles only at the beginning, please? I don’t mind if they are ‘part of’ the header or just after it and before the first cue. The advantage of making this a block is that we can define both types. If the block is used at the beginning, it is valid for the whole file. If the block appears at a later stage, it replaces the previous definitions (or just adds to them). We could even make style blocks that are valid for a certain time interval, just like cues. I'd regard that as a v2 feature, but it's certainly easier to add than extending a metadata header. > 2) What about multi-line? We either need a syntax that allows blank lines, or an escape for them. Years back, we suggested escape. But removing blank lines is as easy as escaping them, and has the huge advantage that the result is still valid CSS. Philip asked about multi line in the bug too. With a block, multi line comes naturally. Blank lines could then either be removed or replaced by a control character. We don't have to come up with special cases for multi line if we choose a block. It's another advantage over the meta header. > What other basic design choices are there, that we could debate? That's it really. Let me know what you think. Silvia.
Received on Monday, 23 February 2015 21:51:31 UTC