ACTION-203: Investigate 708 border style mapping issues with mike's help
Investigate 708 border style mapping issues with mike's help
- State:
- closed
- Person:
- Philippe Le Hégaret
- Due on:
- September 26, 2013
- Created on:
- September 19, 2013
- Associated Issue:
- Region border
- Related emails:
- {minutes} TTWG Meeting 27/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-27)
- {agenda} TTWG Meeting 27/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-26)
- {minutes} TTWG Meeting 20/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-20)
- {agenda} TTWG Meeting 20/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-19)
- RE: {agenda} TTWG Meeting 13/2/2014 (from mdolan@newtbt.com on 2014-02-13)
- Re: {agenda} TTWG Meeting 13/2/2014 (from glenn@skynav.com on 2014-02-13)
- {agenda} TTWG Meeting 13/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-12)
- {minutes} TTWG Meeting 6/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-06)
- Re: {agenda} TTWG Meeting 6/2/2014 (from silviapfeiffer1@gmail.com on 2014-02-06)
- Re: {agenda} TTWG Meeting 6/2/2014 (from silviapfeiffer1@gmail.com on 2014-02-06)
- Re: {agenda} TTWG Meeting 6/2/2014 (from singer@apple.com on 2014-02-05)
- {agenda} TTWG Meeting 6/2/2014 (from nigel.megitt@bbc.co.uk on 2014-02-05)
- {minutes} TTWG Meeting 30/01/2014 (from nigel.megitt@bbc.co.uk on 2014-01-30)
- {agenda} TTWG Meeting 30/01/2014 (from nigel.megitt@bbc.co.uk on 2014-01-30)
- {minutes} 16/1/14 TTWG meeting (from nigel.megitt@bbc.co.uk on 2014-01-16)
- {agenda} 16/1/14 TTWG meeting (from nigel.megitt@bbc.co.uk on 2014-01-16)
- TTWG Agenda for 9/1/14 (from nigel.megitt@bbc.co.uk on 2014-01-08)
- Minutes for 12/12/13 (from nigel.megitt@bbc.co.uk on 2013-12-12)
- TTWG Agenda for 12/12/13 (from nigel.megitt@bbc.co.uk on 2013-12-11)
- Re: TTWG Agenda for 5/12/13 (from nigel.megitt@bbc.co.uk on 2013-12-11)
- Re: TTWG Agenda for 5/12/13 (from glenn@skynav.com on 2013-12-11)
- RE: TTWG Agenda for 5/12/13 (from mdolan@newtbt.com on 2013-12-10)
- TTWG Agenda for 5/12/13 (from nigel.megitt@bbc.co.uk on 2013-12-04)
- Re: TTML Agenda for 21/11/13 (from cyril.concolato@telecom-paristech.fr on 2013-11-21)
- Re: TTML Agenda for 21/11/13 (from glenn@skynav.com on 2013-11-21)
- Re: TTML Agenda for 21/11/13 (from tmichel@w3.org on 2013-11-21)
- TTML Agenda for 21/11/13 (from nigel.megitt@bbc.co.uk on 2013-11-20)
- RE: TTML Agenda for 31/10/13 (from Sean.Hayes@microsoft.com on 2013-10-31)
- TTML Agenda for 31/10/13 (from nigel.megitt@bbc.co.uk on 2013-10-30)
- {minutes} TTML Meeting of 24/10/13 (from glenn@skynav.com on 2013-10-24)
- RE: TTML Agenda for 24/10/13 (from mdolan@newtbt.com on 2013-10-23)
- TTML Agenda for 24/10/13 (from nigel.megitt@bbc.co.uk on 2013-10-23)
Related notes:
Action not well-defined and no referenced issue; taking no action.
Glenn Adams, 5 Dec 2013, 20:22:48Philippe will investigate and possibly open new issue (or resurrect an old issue).
Glenn Adams, 20 Feb 2014, 15:40:12See also issue 191.
Glenn Adams, 20 Feb 2014, 15:44:23Assuming this action is about edge styles (e.g. shadow), then see: https://www.w3.org/AudioVideo/TT/tracker/issues/191
which was closed with a note in the SDP profile to consider new styles to support 708 in a future version of TTML.
Created during
http://www.w3.org/2013/09/19-tt-minutes.html
Our border property comes from CSS:
https://dvcs.w3.org/hg/ttml/raw-file/default/ttml2/spec/ttml2.html#style-attribute-border
708 has border for Window:
[[
NONE=0, RAISED=1, DEPRESSED=2, UNIFORM=3, SHADOW_LEFT=4, and SHADOW_RIGHT=5.
]]
from http://en.wikipedia.org/wiki/CEA-708#SetWindowAttributes_.280x97_.2B_4_bytes.29
WebVTT maps it to the CSS property outline:
[[
::cue-region(uniform) {
outline: black solid 2px;
}
]]
https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#window-colors-and-borders
Characters have edges:
[[
{ NONE=0, RAISED=1, DEPRESSED=2, UNIFORM=3, LEFT_DROP_SHADOW=4, RIGHT_DROP_SHADOW=5, ILLEGAL_VAL0=6, ILLEGAL_VAL1=7 }
]]
http://en.wikipedia.org/wiki/CEA-708#SetPenAttributes_.280x90_.2B_2_bytes.29
WebVTT maps it to the CSS property text-shadow:
[[
::cue(.depressed) {
text-shadow: 1px 0 0 silver, 0 1px 0 silver, 0 -1px 0 #111111, -1px 0 0 #111111;
color: gray;
}
]]
https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#h3_further-cea-708-features
CSS outline property:
http://www.w3.org/TR/css3-ui/#outline0
CSS text-shadow property:
http://www.w3.org/TR/css-text-decor-3/#text-shadow
CSS text-shadow seems similar to TTML textOutline property:
https://dvcs.w3.org/hg/ttml/raw-file/default/ttml2/spec/ttml2.html#style-attribute-textOutline
[nigel]: Regulation does not require support for 708 window border property; text outline already present in TTML2 draft. Therefore decision is to close this action with no further edits at this time.
27 Feb 2014, 15:39:40Display change log.