rfc8846.txt		rfc8846_withoutulempty.txt
	skipping to change at line 290 ¶		skipping to change at line 290 ¶
	This section contains the XML schema for the CLUE data model		This section contains the XML schema for the CLUE data model
	definition.		definition.
	The element and attribute definitions are formal representations of		The element and attribute definitions are formal representations of
	the concepts needed to describe the capabilities of a Media Provider		the concepts needed to describe the capabilities of a Media Provider
	and the streams that are requested by a Media Consumer given the		and the streams that are requested by a Media Consumer given the
	Media Provider's ADVERTISEMENT [RFC8847].		Media Provider's ADVERTISEMENT [RFC8847].
	The main groups of information are:		The main groups of information are:
	<mediaCaptures>: the list of media captures available (Section 5)		<mediaCaptures>: the list of media captures available (Section 5)
	<encodingGroups>: the list of encoding groups (Section 6)		<encodingGroups>: the list of encoding groups (Section 6)
	<captureScenes>: the list of capture scenes (Section 7)		<captureScenes>: the list of capture scenes (Section 7)
	<simultaneousSets>: the list of simultaneous transmission sets		<simultaneousSets>: the list of simultaneous transmission sets
	(Section 8)		(Section 8)
	<globalViews>: the list of global views sets (Section 9)		<globalViews>: the list of global views sets (Section 9)
	<people>: metadata about the participants represented in the		<people>: metadata about the participants represented in the
	telepresence session (Section 21)		telepresence session (Section 21)
	<captureEncodings>: the list of instantiated capture encodings		<captureEncodings>: the list of instantiated capture encodings
	(Section 10)		(Section 10)
	All of the above refer to concepts that have been introduced in		All of the above refer to concepts that have been introduced in
	[RFC8845] and further detailed in this document.		[RFC8845] and further detailed in this document.
	<?xml version="1.0" encoding="UTF-8" ?>		<?xml version="1.0" encoding="UTF-8" ?>
	<xs:schema		<xs:schema
	targetNamespace="urn:ietf:params:xml:ns:clue-info"		targetNamespace="urn:ietf:params:xml:ns:clue-info"
	xmlns:tns="urn:ietf:params:xml:ns:clue-info"		xmlns:tns="urn:ietf:params:xml:ns:clue-info"
	xmlns:xs="http://www.w3.org/2001/XMLSchema"		xmlns:xs="http://www.w3.org/2001/XMLSchema"
	xmlns="urn:ietf:params:xml:ns:clue-info"		xmlns="urn:ietf:params:xml:ns:clue-info"
	skipping to change at line 1289 ¶		skipping to change at line 1289 ¶
	description of a media capture. Each such element has to be		description of a media capture. Each such element has to be
	compliant with the Language-Tag ABNF production from [RFC5646].		compliant with the Language-Tag ABNF production from [RFC5646].
	11.16. <mobility>		11.16. <mobility>
	<mobility> is an optional element indicating whether or not the		<mobility> is an optional element indicating whether or not the
	capture device originating the capture may move during the		capture device originating the capture may move during the
	telepresence session. That optional element can assume one of the		telepresence session. That optional element can assume one of the
	three following values:		three following values:
	static: SHOULD NOT change for the duration of the CLUE session,		static: SHOULD NOT change for the duration of the CLUE session,
	across multiple ADVERTISEMENT messages.		across multiple ADVERTISEMENT messages.
	dynamic: MAY change in each new ADVERTISEMENT message. Can be		dynamic: MAY change in each new ADVERTISEMENT message. Can be
	assumed to remain unchanged until there is a new ADVERTISEMENT		assumed to remain unchanged until there is a new ADVERTISEMENT
	message.		message.
	highly-dynamic: MAY change dynamically, even between consecutive		highly-dynamic: MAY change dynamically, even between consecutive
	ADVERTISEMENT messages. The spatial information provided in an		ADVERTISEMENT messages. The spatial information provided in an
	ADVERTISEMENT message is simply a snapshot of the current		ADVERTISEMENT message is simply a snapshot of the current values
	values at the time when the message is sent.		at the time when the message is sent.
	11.17. <relatedTo>		11.17. <relatedTo>
	The optional <relatedTo> element contains the value of the captureID		The optional <relatedTo> element contains the value of the captureID
	attribute (Section 11.1) of the media capture to which the considered		attribute (Section 11.1) of the media capture to which the considered
	media capture refers. The media capture marked with a <relatedTo>		media capture refers. The media capture marked with a <relatedTo>
	element can be, for example, the translation of the referred media		element can be, for example, the translation of the referred media
	capture in a different language.		capture in a different language.
	11.18. <view>		11.18. <view>
	skipping to change at line 1582 ¶		skipping to change at line 1582 ¶
	The sceneID attribute is a mandatory attribute containing the		The sceneID attribute is a mandatory attribute containing the
	identifier of the capture scene.		identifier of the capture scene.
	16.4. scale Attribute		16.4. scale Attribute
	The scale attribute is a mandatory attribute that specifies the scale		The scale attribute is a mandatory attribute that specifies the scale
	of the coordinates provided in the spatial information of the media		of the coordinates provided in the spatial information of the media
	capture belonging to the considered capture scene. The scale		capture belonging to the considered capture scene. The scale
	attribute can assume three different values:		attribute can assume three different values:
	"mm": the scale is in millimeters. Systems that know their		"mm": the scale is in millimeters. Systems that know their physical
	physical dimensions (for example, professionally installed		dimensions (for example, professionally installed telepresence
	telepresence room systems) should always provide such real-		room systems) should always provide such real-world measurements.
	world measurements.
	"unknown": the scale is the same for every media capture in the		"unknown": the scale is the same for every media capture in the
	capture scene, but the unity of measure is undefined. Systems		capture scene, but the unity of measure is undefined. Systems
	that are not aware of specific physical dimensions yet still		that are not aware of specific physical dimensions yet still know
	know relative distances should select "unknown" in the scale		relative distances should select "unknown" in the scale attribute
	attribute of the capture scene to be described.		of the capture scene to be described.
	"noscale": there is no common physical scale among the media		"noscale": there is no common physical scale among the media
	captures of the capture scene. That means the scale could be		captures of the capture scene. That means the scale could be
	different for each media capture.		different for each media capture.
	<!-- SCALE TYPE -->		<!-- SCALE TYPE -->
	<xs:simpleType name="scaleType">		<xs:simpleType name="scaleType">
	<xs:restriction base="xs:string">		<xs:restriction base="xs:string">
	<xs:enumeration value="mm"/>		<xs:enumeration value="mm"/>
	<xs:enumeration value="unknown"/>		<xs:enumeration value="unknown"/>
	<xs:enumeration value="noscale"/>		<xs:enumeration value="noscale"/>
	</xs:restriction>		</xs:restriction>
	</xs:simpleType>		</xs:simpleType>
	skipping to change at line 2295 ¶		skipping to change at line 2294 ¶
	As to the simultaneous sets, VC1 and VC4 cannot be transmitted		As to the simultaneous sets, VC1 and VC4 cannot be transmitted
	simultaneously since they are captured by the same device, i.e., the		simultaneously since they are captured by the same device, i.e., the
	central camera (VC4 is a zoomed-out view while VC1 is a focused view		central camera (VC4 is a zoomed-out view while VC1 is a focused view
	of the front participant). On the other hand, VC3 and VC4 cannot be		of the front participant). On the other hand, VC3 and VC4 cannot be
	simultaneous either, since VC3, the loudest segment of the room,		simultaneous either, since VC3, the loudest segment of the room,
	might be at a certain point in time focusing on the central part of		might be at a certain point in time focusing on the central part of
	the room, i.e., the same as VC1. The simultaneous sets would then be		the room, i.e., the same as VC1. The simultaneous sets would then be
	the following:		the following:
	SS1: made by VC3 and all the captures in the first capture scene		SS1: made by VC3 and all the captures in the first capture scene
	view (VC0,VC1,and VC2)		view (VC0,VC1,and VC2)
	SS2: made by VC0, VC2, and VC4		SS2: made by VC0, VC2, and VC4
	<?xml version="1.0" encoding="UTF-8" standalone="yes"?>		<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
	<clueInfo xmlns="urn:ietf:params:xml:ns:clue-info"		<clueInfo xmlns="urn:ietf:params:xml:ns:clue-info"
	xmlns:ns2="urn:ietf:params:xml:ns:vcard-4.0"		xmlns:ns2="urn:ietf:params:xml:ns:vcard-4.0"
	clueInfoID="NapoliRoom">		clueInfoID="NapoliRoom">
	<mediaCaptures>		<mediaCaptures>
	<mediaCapture		<mediaCapture
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:type="audioCaptureType" captureID="AC0"		xsi:type="audioCaptureType" captureID="AC0"
	mediaType="audio">		mediaType="audio">
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