[AVTCORE] draft-ietf-avtcore-rfc5285-bis-11.txt - new text for bundle case

[Roni Even <[e-mail]>]

Hi,

 I suggest adding the following text to section 6

When used in [bundle] this attribute is specified as normal category for the [mux attribute]. This allows for only a subset of the m-lines in the bundle group to offer extmap-allow-mixed. When an answerer supporting the extmap-allow-mix attribute receives an offer where only some of the m-lines in the bundle group include the extmap-allow-mixed attribute, the answerer must receive this offer and support mixed one-byte and two-bytes only for those m-lines.  



And the following text to section 7

When using [bundle] to bundle multiple m-lines the extmap attribute falls under the special category of [mux attribute]. 
All the m-lines in a bundle group are considered to be part of the same local identifier (ID) space.  If an extension URI is offered in multiple m-lines the same attributes as part of the same bundle group it MUST use the same ID in all this m-lines. Each m-line in a bundle group can include different extension URIs allowing for example audio and video sources to use different sets of RTP header extensions. The directionality of the RTP header extensions in each m-line of the bundle group are handled as the non-bundled case. This allows for specifying different directionality for each of the repteated extension URI in bundled group.


Roni Even