[imsc] IMSC is not a strict superset of SDP-US

skynavga has just created a new issue for https://github.com/w3c/imsc:

== IMSC is not a strict superset of SDP-US ==
SDP-US Section 4.2 [1] states:

"R0008 - A document must contain a ttp:profile element where the use 
attribute of that element is specified as 
http://www.w3.org/ns/ttml/profile/sdp-us."

however, IMSC Section 6.10 [2] states:

"#profile       permitted        ... The ttp:profile element shall not
 be present."

This means that the statement made in the IMSC Abstract and Scope 
sections regarding SDP-US is incorrect:

"The text-only profile is a strict superset of [ttml10-sdp-us]."

[1] 
http://www.w3.org/TR/ttml10-sdp-us/#Use_of_Constrained_TTML_Feature_content_profile
[2] 
https://rawgit.com/w3c/imsc1/master/spec/ttml-ww-profiles.html#common-features


Please view or discuss this issue at 
https://github.com/w3c/imsc/issues/128 using your GitHub account

Received on Friday, 8 January 2016 03:28:38 UTC