AndoverMA01810 United States of America mrducky73@outlook.com

Acano

Uxbridge United Kingdom apeppere@gmail.com

Vidyo, Inc.

433 Hackensack Ave. HackensackNJ07601 United States of America stewe@stewe.org

ART CLUE example This document defines a framework for a protocol to enable devices in a telepresence conference to interoperate. The protocol enables communication of information about multiple media streams so a sending system and receiving system can make reasonable decisions about transmitting, selecting, and rendering the media streams. This protocol is used in addition to SIP signaling and Session Description Protocol (SDP) negotiation for setting up a telepresence session.

Introduction Current telepresence systems, though based on open standards such as RTP [...] A Provider MAY include as much or as little of the original source Capture information as it requires. The spatial-related attributes of an MCC indicate its area of capture and point of capture within the scene, just like any other media capture. The spatial information does not imply anything about how other captures are composed within an MCC. For example: a virtual scene could be constructed for the MCC capture with two Video Captures with a "MaxCaptures" attribute set to 2 and an "Area of Capture" attribute provided with an overall area. Each of the individual Captures could then also include an "Area of Capture" attribute with a subset of the overall area. The Consumer would then know how each capture is related to others within the scene, but not the relative position of the individual captures within the composed capture. Here is an example using <artwork>. TEST A: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures=2 AreaofCapture=(0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

Here is an example using <td> with align=right. TEST B: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures=2 AreaofCapture=(0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

TEST Bx: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures=2
	AreaofCapture=(0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

Here is an example using <ul>. TEST C: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures=2 AreaofCapture=(0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

TEST D: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=	(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=	(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures= AreaofCapture=	2 (0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

TEST E: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=	(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=	(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures= AreaofCapture=	2 (0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

This is similar to B: TEST F: Example of MCC and Single Media Capture Attributes

Capture Scene #1
VC1	AreaofCapture=(0,0,0)(9,0,0) (0,0,9)(9,0,9)
VC2	AreaofCapture=(10,0,0)(19,0,0) (10,0,9)(19,0,9)
MCC1(VC1,VC2)	MaxCaptures=2 AreaofCapture=(0,0,0)(19,0,0) (0,0,9)(19,0,9)
CSV(MCC1)

The subsections below describe the MCC-only attributes.