CN104219484A

CN104219484A - Method and device of capability interaction of tele-presence endpoints as well as data stream

Info

Publication number: CN104219484A
Application number: CN201310213832.7A
Authority: CN
Inventors: 王亮; 叶小阳
Original assignee: ZTE Corp
Current assignee: Jiangsu Dashi Aviation Technology Co ltd
Priority date: 2013-06-01
Filing date: 2013-06-01
Publication date: 2014-12-17
Anticipated expiration: 2033-06-01
Also published as: WO2014190809A1; CN104219484B

Abstract

The invention discloses a method and device of capability interaction of tele-presence endpoints as well as a data stream. The method comprises the following steps that capability interaction is carried out between a first tele-presence endpoint and a second tele-presence endpoint, wherein a tele-presence endpoint capability set is carried in information for capacity interaction, and the tele-presence endpoint capability set comprises a tele-presence endpoint receiving capability set; and the first tele-presence endpoint opens a logical channel between the first tele-presence endpoint and the second tele-presence endpoint according to a result of capability interaction. Through the method and the device of capability interaction of the tele-presence endpoints as well as the data stream, capability interaction of the tele-presence endpoints is implemented and user experience is improved.

Description

Long-range ability exchange method and device, the data flow presenting end points

Technical field

The present invention relates to the communications field, in particular to a kind of long-range ability exchange method and device, data flow presenting end points.

Background technology

At present based in video conference series products H.323, time H.245 employing carries out capability negotiation, traditional video conference class end-point capability can only be held consultation, cannot hold consultation to the long-range ability presenting end points.When being in particular in that ability is mutual, can only carry out alternately to the coding/decoding capability of conventional video conferencing endpoints, the newly-increased media stream receiver of end points cannot be presented and transmitting capacity carries out alternately to long-range.When opening logical channel, also can only specify the encoding and decoding attribute of logical channel, cannot to the media flow attribute of logical channel, encoding and decoding attribute, multiplexing attribute, and these long-range binding relationships presented between end-point capability attribute are specified.

For the problem that the machinery of consultation in correlation technique cannot be held consultation to the long-range capability set presenting end points, at present effective solution is not yet proposed.

Summary of the invention

The invention provides ability exchange method and device, data flow that a kind of far-end presents end points, at least to solve the problem.

According to an aspect of the present invention, provide the ability exchange method that a kind of far-end presents end points, comprise: first long-rangely presents end points and second long-range to present ability of carrying out between end points mutual, wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection; The described first long-range end points that presents is opened described first according to the result that described ability is mutual and is long-rangely presented end points and the described second long-range logical channel presented between end points.

Preferably, the first long-range end points and second that presents long-rangely presents ability of carrying out between end points and comprises alternately:

The described first long-range end points that presents sends the first ability collection interaction request to the described second long-range end points that presents, and wherein, carries described first long-range the first receiving ability collection presenting end points in described the first ability collection interaction request;

The described first long-range end points that presents receives the second long-range the second ability collection interaction request presenting end points and send, and wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

The described first long-range end points that presents receives described second long-range the first logical channel request presenting end points and send, wherein, described first logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described first logical channel request opens the described second long-range end points that presents to the described first long-range forward direction logical channel presented between end points for asking;

The described first long-range end points that presents sends the second logical channel request to the described first long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described first long-range transmitting capacity presenting end points, determine the second logical channel request, wherein, described second logical channel request opens the described first long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

The described first long-range end points that presents sends the 3rd capability set interaction request to the described second long-range end points that presents, and wherein, carries described first long-range the first receiving ability collection presenting end points in described 3rd capability set interaction request;

The described first long-range end points that presents receives described second long-range the 3rd logical channel request presenting end points and send, wherein, described 3rd logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described 3rd logical channel request opens the described second long-range end points that presents to the described first long-range forward direction logical channel presented between end points for asking;

The described first long-range end points that presents receives the second long-range the 4th capability set interaction request presenting end points and send, and wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

The described first long-range end points that presents sends the 4th logical channel request to the described second long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described first long-range transmitting capacity presenting end points, determine described 4th logical channel request, wherein, described 4th logical channel request opens the described first long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Preferably, long-range present after end points sends the second logical channel request at the described first long-range end points that presents to described first, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described second logical channel request presenting end points and send;

Send after the 4th logical channel request to the described first long-range end points that presents at the described first long-range end points that presents, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described 4th logical channel request presenting end points and send.

Preferably, described first long-range present end points receive described second long-range present the first logical channel request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described first logical channel request to the described second long-range end points that presents;

Described first long-range present end points receive described second long-range present the 3rd logical channel request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described 3rd logical channel request to the described second long-range end points that presents.

Preferably, long-range present after end points sends the first ability collection interaction request at the described first long-range end points that presents to described second, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described the first ability collection interaction request presenting end points and send;

Send after the 3rd capability set interaction request to the described second long-range end points that presents at the described first long-range end points that presents, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described 3rd capability set interaction request presenting end points and send.

Preferably, described first long-range present end points receive second long-range present the second ability collection interaction request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described the second ability collection interaction request to the described second long-range end points that presents;

Described first long-range present end points receive second long-range present the 4th capability set interaction request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described 4th capability set interaction request to the described second long-range end points that presents.

Preferably, comprise and long-rangely present end points receiving ability collection, the wherein said long-range end points receiving ability that presents comprises: rendering parameter, described rendering parameter comprises: general parameter, video parameter and/or audio frequency parameter.

Preferably, described general parameter comprises: media hype content, scene description, scene switchover policy, universal space information and/or universal coding information, and wherein, described media hype content is for representing the attribute of the capture content playing up end points needs; Described scene description, for providing the description of overall scenario; Described scene switchover policy, is used to indicate supported media switchover policy.

Preferably, described scene switchover policy comprises place switchover policy and/or part switchover policy, wherein, described place switchover policy is switch whole playing up simultaneously, come together from same end points place for ensureing to play up, described part switchover policy is different play up at different time-switchings, from identical and/or different end points.

Preferably, described universal space information: comprise scene areas and/or region calibration parameters, wherein, described scene areas parameter is for representing the scope of the overall scenario relevant to end points, and described region scale is used for the kind of the scale that representation space information parameter adopts.

Preferably, universal coding information comprises whole maximum bandwidths, whole maximum pixel numbers per second and/or whole per second maximum macroblock number, wherein, described whole maximum bandwidth represents by the bit rate of the maximum quantity per second of the whole code streams playing up the preset kind that end points receives; The maximum pixel number of the process per second of whole absolute coding in described maximum pixel number presentation code group per second all; Described per second maximum macroblock number all represents all videos code stream received by end points maximum macroblock number per second.

Preferably, described video parameter comprises: Video Rendering quantity, Video Rendering spatial information and/or Video Rendering coded message, and wherein, described Video Rendering quantity is for representing the quantity of Video Rendering; Described Video Rendering spatial information is a part in overall render scenes for what represent that this Video Rendering represents.

Preferably, described Video Rendering coded message comprises maximum video bandwidth, maximum pixel number per second, the width of maximum video resolution, the height of maximum video resolution and/or maximum video frame rate; Wherein, described maximum video bandwidth, this parameter is for representing the maximum number bits per second of single Video coding; Described maximum pixel number per second, this parameter is for representing the maximum pixel number per second of single Video coding; The width of described maximum video resolution, this parameter is for representing the width of the maximum video resolution in units of pixel; The height of described maximum video resolution, this parameter is for representing the height of the maximum video resolution in units of pixel; Described maximum video frame rate, this parameter is for representing maximum video frame rate.

Preferably, described audio frequency parameter comprises: audio frequency plays up quantity, audio frequency plays up spatial information and/or audio frequency plays up coded message, and wherein, described audio frequency plays up quantity for representing the quantity that audio frequency is played up; Described audio frequency plays up spatial information for representing that audio frequency plays up spatial information residing in overall render scenes.

Preferably, described audio frequency is played up coded message and is comprised: voice-grade channel form and/or maximal audio bandwidth, and wherein, described voice-grade channel form, for representing the attribute of voice-grade channel; Described maximal audio bandwidth, for representing the maximum number bits per second that single audio frequency is encoded.

According to a further aspect in the invention, provide the ability interactive device that a kind of far-end presents end points, comprise: interactive module, for and second long-range to present ability of carrying out between end points mutual, wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection; Processing module, opens described first for the result mutual according to described ability and long-rangely presents end points and the described second long-range logical channel presented between end points.

Preferably, described interactive module comprises:

First sending module, for sending the first ability collection interaction request to the described second long-range end points that presents, wherein, carries described long-range the first receiving ability collection presenting end points in described the first ability collection interaction request;

First receiver module, for receiving the second long-range the second ability collection interaction request presenting end points and send, wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

Second receiver module, for receiving described second long-range the first logical channel request presenting end points and send, wherein, described first logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described first logical channel request opens the described second long-range end points that presents to the described long-range forward direction logical channel presented between end points for asking;

Second sending module, for sending the second logical channel request to the described second long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described long-range transmitting capacity presenting end points, determine the second logical channel request, wherein, described second logical channel request opens the described long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Preferably, described interactive module comprises:

3rd sending module, for sending the 3rd capability set interaction request to the described second long-range end points that presents, wherein, carries described long-range the first receiving ability collection presenting end points in described 3rd capability set interaction request;

3rd receiver module, for receiving described second long-range the 3rd logical channel request presenting end points and send, wherein, described 3rd logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described 3rd logical channel request opens the described second long-range end points that presents to the described long-range forward direction logical channel presented between end points for asking;

4th receiver module, for receiving the second long-range the 4th capability set interaction request presenting end points and send, wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

4th sending module, for sending the 4th logical channel request to the described second long-range end points that presents, the described first long-range end points that presents is according to the described second receiving ability collection received and the described long-range transmitting capacity presenting end points, determine the 4th logical channel request, wherein, described 4th logical channel request opens the described long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

According to an aspect of the present invention, provide a kind of data flow, comprise: long-rangely present end points receiving ability collection, the wherein said long-range end points receiving ability that presents comprises: rendering parameter, described rendering parameter comprises: general parameter, video parameter and/or audio frequency parameter.

By the present invention, achieve the long-range ability presenting end points mutual, improve user experience.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart of the ability exchange method presenting end points according to the far-end of the embodiment of the present invention;

Fig. 2 is the structured flowchart of the ability interactive device presenting end points according to the far-end of the embodiment of the present invention;

Fig. 3 is the preferred structured flowchart of the ability interactive device presenting end points according to the far-end of the embodiment of the present invention;

Fig. 4 is the flow chart one presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Fig. 5 is the flowchart 2 of the machinery of consultation presenting end points according to the far-end of the embodiment of the present invention;

Fig. 6 is the flow chart 3 of the machinery of consultation presenting end points according to the far-end of the embodiment of the present invention;

Fig. 7 is the flow chart four presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Fig. 8 is the flow chart five presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Fig. 9 is the flow chart six presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 10 is the flow chart seven presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 11 is the flow chart eight presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 12 is the flow chart nine presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 13 is the flow chart ten presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 14 is the flow chart 11 presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 15 is the flow chart 12 presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 16 is the flow chart 13 presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention;

Figure 17 is the long-range schematic diagram presenting end-point capability collection according to the embodiment of the present invention.

Embodiment

Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

Present embodiments provide a kind of long-range ability exchange method presenting end points, Fig. 1 is the flow chart of the ability exchange method presenting end points according to the far-end of the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps that S102 is to step S106.

Step S102: the first long-rangely presents end points and second long-range to present ability of carrying out between end points mutual, wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection.

Step S104: the first long-range end points that presents is opened first according to the result that ability is mutual and is long-rangely presented end points and the second long-range logical channel presented between end points.

As a preferably execution mode, step S102 can be implemented by the following two kinds mode.

Mode one:

Which comprises the steps:

S1: the described first long-range end points that presents sends the first ability collection interaction request to the described second long-range end points that presents, and wherein, carries described first long-range the first receiving ability collection presenting end points in described the first ability collection interaction request.

S3: the described first long-range end points that presents receives the second long-range the second ability collection interaction request presenting end points and send, and wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request.

S5: the described first long-range end points that presents receives described second long-range the first logical channel request presenting end points and send, wherein, described first logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described first logical channel request opens the described second long-range end points that presents to the described first long-range forward direction logical channel presented between end points for asking.

S7: the first long-range end points that presents sends the second logical channel request to the described first long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described first long-range transmitting capacity presenting end points, determine the second logical channel request, wherein, described second logical channel request opens the described first long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Mode two:

Which comprises the steps:

S2: the first long-range end points that presents sends the 3rd capability set interaction request to the described second long-range end points that presents, and wherein, carries described first long-range the first receiving ability collection presenting end points in described 3rd capability set interaction request.

S4: the first long-range end points that presents receives described second long-range the 3rd logical channel request presenting end points and send, wherein, described 3rd logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described 3rd logical channel request opens the described second long-range end points that presents to the described first long-range forward direction logical channel presented between end points for asking.

S6: the first long-range end points that presents receives the second long-range the 4th capability set interaction request presenting end points and send, and wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request.

S8: the first long-range end points that presents sends the 4th logical channel request to the described second long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described first long-range transmitting capacity presenting end points, determine described 4th logical channel request, wherein, described 4th logical channel request opens the described first long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Long-range present after end points sends the second logical channel request at the described first long-range end points that presents to described first, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described second logical channel request presenting end points and send;

In another embodiment, additionally provide a kind of long-range ability interactive software presenting end points, this software is for performing the technical scheme described in above-described embodiment and preferred embodiment.

In another embodiment, additionally provide a kind of storage medium, store the above-mentioned long-range ability interactive device presenting end points in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.

The embodiment of the present invention additionally provides a kind of long-range ability interactive device presenting end points, be applied to first and long-rangely present end points, this long-range ability interactive device presenting end points may be used for realizing above-mentioned long-range ability exchange method and the preferred implementation presenting end points, to carry out explanation, repeat no more, below this long-range module related in the ability interactive device of end points that presents is described.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the system and method described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.

Fig. 2 is the structured flowchart of the ability interactive device presenting end points according to the far-end of the embodiment of the present invention, and as shown in Figure 2, this device comprises: interactive module 22, and processing module 24, is described in detail said structure below.

Interactive module 22, for and second long-range to present ability of carrying out between end points mutual, wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection; Processing module 24, for opening the second long-range logical channel presented between end points according to interaction results.

Fig. 3 is the preferred structured flowchart of the ability interactive device presenting end points according to the far-end of the embodiment of the present invention, is described in detail below to preferred structure.

Described interactive module 22 comprises:

First sending module 221, for sending the first ability collection interaction request to the described second long-range end points that presents, wherein, carries described long-range the first receiving ability collection presenting end points in described the first ability collection interaction request;

First receiver module 222, for receiving the second long-range the second ability collection interaction request presenting end points and send, wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

Second receiver module 223, for receiving described second long-range the first logical channel request presenting end points and send, wherein, described first logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described first logical channel request opens the described second long-range end points that presents to the described long-range forward direction logical channel presented between end points for asking;

Second sending module 224, for sending the second logical channel request to the described second long-range end points that presents, wherein, the described first long-range end points that presents is according to the described second receiving ability collection received and the described long-range transmitting capacity presenting end points, determine the second logical channel request, wherein, described second logical channel request opens the described long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Preferably, described interactive module 22 comprises:

3rd sending module 225, for sending the 3rd capability set interaction request to the described second long-range end points that presents, wherein, carries described long-range the first receiving ability collection presenting end points in described 3rd capability set interaction request;

3rd receiver module 226, for receiving described second long-range the 3rd logical channel request presenting end points and send, wherein, described 3rd logical channel request is that the described second long-range end points that presents is determined according to the described first receiving ability collection received and the described second long-range transmitting capacity presenting end points, and described 3rd logical channel request opens the described second long-range end points that presents to the described long-range forward direction logical channel presented between end points for asking;

4th receiver module 227, for receiving the second long-range the 4th capability set interaction request presenting end points and send, wherein, carries described second long-range the second receiving ability collection presenting end points in described the second ability collection interaction request;

4th sending module 228, for sending the 4th logical channel request to the described second long-range end points that presents, the described first long-range end points that presents is according to the described second receiving ability collection received and the described long-range transmitting capacity presenting end points, determine the 4th logical channel request, wherein, described 4th logical channel request opens the described long-range end points that presents to the described second long-range forward direction logical channel presented between end points for asking.

Present embodiments provide a kind of data flow, comprising: long-rangely present end points receiving ability collection, the wherein said long-range end points receiving ability that presents comprises: rendering parameter, described rendering parameter comprises: general parameter, video parameter and/or audio frequency parameter.

As a preferably execution mode, the long-range end-point capability collection that presents comprises: transmitting capacity collection, and transmitting capacity collection comprises: catch parameter, catches parameter and comprises: general parameter, video parameter and/or audio frequency parameter.

Preferably, general parameter comprises media capture content, scene description, scene switchover policy, universal space information and/or universal coding information; The purposes of media capture content representation media capture, this attribute comprises media capture visual angle, the role of the expression of media, and whether media are secondary flow content, media relational language; Scene description for providing the description of overall scenario, such as text description.

Preferably, scene switchover policy is used to indicate institute's support media switchover policy, wherein, the strategy that the media supported switch comprises place switchover policy and part switchover policy, wherein, place switchover policy is used to indicate and switches whole catching simultaneously, comes together from same end points place to ensure to catch, part switchover policy is used to indicate different catching can at different time-switchings, and long-rangely present end points from identical and/or different.

Preferably, universal space information comprises scene areas and/or region calibration parameters, and wherein, scene areas parameter is used to indicate the scope of the overall scenario relevant to end points, and region graduation apparatus understands the kind of the scale that spatial information parameter adopts.

Preferably, universal coding information comprises whole maximum bandwidths, whole maximum pixel numbers per second and/or whole per second maximum macroblock number, wherein, whole maximum bandwidth is used to indicate the bit rate of the maximum quantity per second of whole code streams of the preset kind sent by end points; Whole maximum pixel numbers per second is used for the maximum pixel number per second of all absolute codings in presentation code group; Whole per second maximum macroblock number represents all videos code stream sent by end points maximum macroblock number per second.

Preferably, video parameter comprises: Video Capture quantity, Video Capture spatial information and/or Video Capture coded message; Video Capture quantity is for representing the quantity of Video Capture.

Preferably, Video Capture spatial information comprises capture region, capture point and/or catches the point on line, and wherein, capture region is for representing the locus residing for this Video Capture is in overall capturing scenes; Capture point, is used to indicate in capturing scenes, the position of Video Capture; Catch the point on line, describe the locus of second point on capture device optical axis, and first point is capture point.

Preferably, Video Capture coded message, comprises maximum video bandwidth, maximum pixel number per second, the width of maximum video resolution, the height of maximum video resolution and/or maximum video frame rate; Wherein, maximum video bandwidth, is used to indicate the maximum number bits per second of single Video coding; Maximum pixel number per second, this parameter is for representing the maximum pixel number per second of single Video coding; The width of maximum video resolution, this parameter is for representing the width of the maximum video resolution in units of pixel; The height of maximum video resolution, this parameter is for representing the height of the maximum video resolution in units of pixel; Maximum video frame rate, this parameter list understands maximum video frame rate.

Preferably, audio frequency parameter comprises audio capturing quantity, audio capturing spatial information and/or audio capturing coded message; Audio capturing quantity is used to indicate the quantity of audio capturing.

Preferably, audio capturing spatial information comprises: capture region and/or capture point, and wherein, capture region, for representing the locus of audio capturing residing for overall capturing scenes; Capture point, for representing in capturing scenes, the position of audio capturing.

Preferably, audio capturing coded message comprises: voice-grade channel form and/or maximal audio bandwidth; Voice-grade channel form, is used to indicate the attribute of voice-grade channel; Maximal audio bandwidth, is used to indicate the maximum number bits per second of single audio frequency coding.

As a preferably execution mode, the long-range end-point capability collection that presents also comprises: long-rangely present end points symmetric capability collection, the long-range end points symmetric capability collection that presents comprises: catch rendering parameter, catch rendering parameter and comprise: general parameter, video parameter and/or audio frequency parameter.

Preferably, general parameter comprises media capture rendering content, scene description, scene switchover policy, universal space information and/or universal coding information; The purposes that media capture rendering content presentation medium is caught and/or played up, this attribute comprises media capture visual angle, the role of the expression of media, and whether media are secondary flow content, media relational language; Scene description is for providing the description of overall scenario;

Preferably, scene switchover policy is used to indicate institute's support media switchover policy, wherein, the strategy that the media supported switch comprises place switchover policy and part switchover policy, wherein, place switchover policy is used to indicate and switches whole catching simultaneously and play up, and comes together from same end points place to ensure to catch to play up, part switchover policy is used to indicate that different catching play up can at different time-switchings, and long-rangely present end points from identical and/or different.

Preferably, universal coding information comprises whole maximum bandwidths, whole maximum pixel numbers per second and/or whole per second maximum macroblock number, wherein, whole maximum bandwidth is used to indicate the bit rate of catching the whole code streams maximum quantity per second playing up the preset kind that end points sends and/or receives; Whole maximum pixel numbers per second is for representing the maximum pixel number per second of all absolute codings in the code set that to be sent by end points and/or receive; Whole per second maximum macroblock number represents all videos code stream maximum macroblock number per second being sent by end points and/or receive.

Preferably, video parameter comprises: Video Capture plays up quantity, Video Capture plays up spatial information and/or Video Capture plays up coded message; Video Capture plays up quantity for the quantity representing Video Capture and/or play up.

Preferably, Video Capture is played up spatial information and is comprised catching and play up region, catch the point of playing up a little and/or catching and playing up on line, wherein, catch play up region for represent this Video Capture play up entirety catch and/or in render scenes residing for locus; Catch and play up a little, be used to indicate and catching and/or in render scenes, Video Capture and/or the position of playing up; Catch the point played up on line, describe the locus of second point of catching and/or on rendering apparatus optical axis, and first point is for catching and/or playing up a little.

Preferably, Video Capture plays up coded message, comprises maximum video bandwidth, maximum pixel number per second, the width of maximum video resolution, the height of maximum video resolution and/or maximum video frame rate; Wherein, maximum video bandwidth, is used to indicate the maximum number bits per second of single Video coding; Maximum pixel number per second, this parameter is for representing the maximum pixel number per second of single Video coding; The width of maximum video resolution, this parameter is for representing the width of the maximum video resolution in units of pixel; The height of maximum video resolution, this parameter is for representing the height of the maximum video resolution in units of pixel; Maximum video frame rate, this parameter list understands maximum video frame rate.

Preferably, audio frequency parameter comprises that audio capturing plays up quantity, audio capturing plays up spatial information and/or audio capturing plays up coded message; Audio capturing is played up quantity and is used to indicate the quantity that audio capturing plays up.

Preferably, audio capturing is played up spatial information and is comprised: catch to play up region and/or catch and play up a little, wherein, catch and play up region, catches and/or locus residing for render scenes in entirety for representing audio capturing and/or playing up; Catching and play up a little, to catch and/or in render scenes for representing, audio capturing and/or the position of playing up.

Preferably, audio capturing is played up coded message and is comprised: voice-grade channel form and/or maximal audio bandwidth; Voice-grade channel form, is used to indicate the attribute of voice-grade channel; Maximal audio bandwidth, is used to indicate the maximum number bits per second relating to single audio frequency coding.

Preferred embodiment one

This preferred embodiment provides a kind of capability negotiation method, can ensure the long-range scene description presenting multi-path media between end points, the negotiation of coding/decoding capability and multiplex channel.

In the present embodiment, provide negotiation mode A, Fig. 4 is the flow chart one presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, and as shown in Figure 4, negotiation mode comprises the mutual and logical channel of capability set and opens two parts.Comprise the steps S401 and step S402:

Step S401: capability set is mutual: two long-range, and to present ability of carrying out between end points mutual, carries long-rangely to present end-point capability collection.

Step S402: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Be described below in conjunction with example.

Provide negotiation mode A-1 in the present embodiment, Fig. 5 is the flowchart 2 of the machinery of consultation presenting end points according to the far-end of the embodiment of the present invention, as shown in Figure 5.The capability set carried in this negotiation mode capability set interaction message is receiving ability collection, and receiving ability collection comprises end points receiving ability relevant parameter, comprises the steps S501 and step S502.

Step S501: capability set is mutual: two long-range presents that to carry out capability set between end points mutual, carries long-rangely to present end points receiving ability collection parameter in message.

Step S502: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Fig. 6 is the flow chart 3 of the machinery of consultation presenting end points according to the far-end of the embodiment of the present invention, and the mutual and logical channel of the capability set as shown in Figure 6 in this kind of negotiation mode is opened flow process and can be comprised the steps that S601 is to step S608.

Step S601: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal A in message.

Step S602: terminal B replys terminal A capability set interaction response message;

Step S603: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal B in message;

Step S604: terminal A replys terminal B capability set interaction response message;

Step S605: terminal B, according to the receiving ability of terminal A, in conjunction with the transmitting capacity of oneself, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S606: terminal A is replied to terminal B and opened logical channel response message;

Step S607: terminal A, according to the receiving ability of terminal B, in conjunction with the transmitting capacity of oneself, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

Step S608: terminal B is replied to terminal A and opened logical channel response message.

Wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of logical channel opens message.According to this rule, the order that the message described in Fig. 6 sends can also be 1,3,2,4,5,6,7,8, response message is sent again after terminal A and the first interaction capabilities collection mutually of B, or 1,2,5,6,3,4,7,8, after ability completes a part alternately, first open the logical channel of side.

Wherein a terminal A is in the information interactive process of terminal B, if bottom package length allow, then once can carry many message sent out from side end points, such as 1,2+3,4,5,6+7,8.Wherein 2+3 represents that terminal B sends to terminal A information, this time mutual in contain 2 and 3 two message.

Preferred embodiment two

This preferred embodiment provides negotiation mode A-2, and the capability set carried in this negotiation mode capability set interaction message is symmetric capability collection, and the receiving ability collection of this end points of symmetric capability set representations is consistent with transmitting capacity collection.Fig. 7 is the flow chart four presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, as shown in Figure 7, and the method comprising the steps of S701 and step S702.

Step S701: capability set is mutual: two long-range presents that to carry out capability set between end points mutual, carries long-rangely to present end points symmetric capability collection parameter in message.

Step S702: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Fig. 8 is the flow chart five presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, and as shown in Figure 8, the mutual and logical channel of the capability set in this kind of negotiation mode is opened flow process and comprised the steps that S801 is to step S808.

Step S801: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the symmetric capability collection of terminal A in message;

Step S803: terminal B replys terminal A capability set interaction response message;

Step S804: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the symmetric capability collection of terminal B in message;

Step S804: terminal A replys terminal B capability set interaction response message;

Step S805: terminal B, according to the symmetric capability of terminal A, in conjunction with the ability of oneself, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S806: terminal A is replied to terminal B and opened logical channel response message;

Step S807: terminal A, according to the symmetric capability of terminal B, in conjunction with the ability of oneself, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

Step S808: terminal B is replied to terminal A and opened logical channel response message.

Wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of logical channel opens message.According to this rule, the order that the message described in Fig. 8 sends can also be 1,3,2,4,5,6,7,8, response message is sent again after terminal A and the first interaction capabilities collection mutually of B, or 1,2,5,6,3,4,7,8, after ability completes a part alternately, first open the logical channel of side.

Preferred embodiment three

This preferred embodiment provides negotiation mode A-3, and the capability set carried in this negotiation mode capability set interaction message is transmitting capacity collection, and transmitting capacity collection comprises end points transmitting capacity relevant parameter.Fig. 9 is the flow chart six presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, as shown in Figure 9, and the method comprising the steps of S901 and step S902.

Step S901: capability set is mutual: two long-range presents that to carry out capability set between end points mutual, carries long-rangely to present end points transmitting capacity collection parameter in message.

Step S902: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Be described below in conjunction with example.

Example one:

This example provides negotiation mode A-3-1, Figure 10 is the flow chart seven presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, as shown in Figure 10, the parameter after which returns selection in ability interaction response message, comprises the steps that S101 is to step S108.

Step S101: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal A in message;

Step S102: terminal B replys terminal A capability set interaction response message, carries B concentrates selection parameter from the transmitting capacity of A;

Step S103: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal B in message;

Step S104: terminal A replys terminal B capability set interaction response message, carries A concentrates selection parameter from the transmitting capacity of B;

Step S105: the ability that terminal A is selected in capability set interaction response according to terminal B, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

Step S106: terminal B is replied to terminal A and opened logical channel response message;

Step S107: the ability that terminal B is selected at capability set interaction response according to terminal A, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S108: terminal A is replied to terminal B and opened logical channel response message.

Wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of logical channel opens message.According to this rule, the order that the message described in Figure 10 sends can also be 1,3,2,4,5,6,7,8, response message is sent again after terminal A and the first interaction capabilities collection mutually of B, or 1,2,5,6,3,4,7,8, after ability completes a part alternately, first open the logical channel of side.

Example one:

This example provides negotiation mode A-3-2, as shown in figure 11, which does not carry Selection parameter in capability set interaction response message, and what open in the request of opening in logical channel request is reverse logic passage, comprises the steps that S111 is to step S118.

Step S111: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal A in message;

Step S112: terminal B replys terminal A capability set interaction response message;

Step S113: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal B in message;

Step S114: terminal A replys terminal B capability set interaction response message;

Step S115: terminal B, according to the transmitting capacity of terminal A, in conjunction with the receiving ability of oneself, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the reverse logic passage of B to A is opened in request;

Step S116: terminal A is replied to terminal B and opened logical channel response message;

Step S117: terminal A, according to the transmitting capacity of terminal B, in conjunction with the receiving ability of oneself, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the reverse logic passage of A to B is opened in request;

Step S118: terminal B is replied to terminal A and opened logical channel response message.

Wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of logical channel opens message.According to this rule, the order that the message described in Figure 11 sends can also be 1,3,2,4,5,6,7,8, response message is sent again after terminal A and the first interaction capabilities collection mutually of B, or 1,2,5,6,3,4,7,8, after ability completes a part alternately, first open the logical channel of side.

Preferred embodiment four

This preferred embodiment provides negotiation mode A-4, and the capability set carried in this negotiation mode capability set interaction message is receiving ability collection and transmitting capacity collection.Receiving ability collection comprises end points receiving ability relevant parameter, and transmitting capacity collection comprises end points transmitting capacity relevant parameter.As shown in figure 12, S1201 and step S1202 is comprised the steps.

Step S1201: capability set is mutual: two long-range presents that to carry out capability set between end points mutual, carries long-rangely to present end points receiving ability collection and transmitting capacity collection parameter in message.

Step S1202: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Be described below by example.

Example one

This example describes negotiation mode A-4-1, and as shown in figure 13, this negotiation mode carries receiving ability collection and transmitting capacity collection simultaneously when capability set is mutual, comprises the steps that S1301 is to step S1308.

Step S1301: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries receiving ability collection and the transmitting capacity collection of terminal A in message;

Step S1302: terminal B replys terminal A capability set interaction response message;

Step S1303: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries receiving ability collection and the transmitting capacity collection of terminal B in message;

Step S1304: terminal A replys terminal B capability set interaction response message;

Step S1305: terminal B, according to the ability of terminal A, in conjunction with the ability of oneself, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S1306: terminal A is replied to terminal B and opened logical channel response message;

Step S1307: terminal A, according to the ability of terminal B, in conjunction with the ability of oneself, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

Step S1308: terminal B is replied to terminal A and opened logical channel response message.

Wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of logical channel opens message.According to this rule.The order that the message described in Figure 13 sends can also be 1,3,2,4,5,6,7,8, the logical channel on both sides is opened again after the mutual interaction capabilities collection of terminal A and B elder generation, or 1,2,5,6,3,4,7,8, after ability completes a part alternately, first open the logical channel of side.

Example two

Figure 14 is the flow chart 11 presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, describe negotiation mode A-4-2 in the present embodiment, as shown in figure 14, the transmitting capacity collection which will rely on as transmitting terminal as the ability to accept collection of receiving terminal in capability set interaction request message is formed, and comprises the steps that S1401 is to step S1412.

S1401: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal A in message;

S1402: terminal B replys terminal A capability set interaction response message;

S1403: terminal B, according to the transmitting capacity of terminal A and the reception needs of oneself, to terminal A initiating capacity interaction request message, carries the receiving ability collection of terminal B in message;

S1404: terminal A replys terminal B capability set interaction response message;

S1405: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal B in message;

S1406: terminal A replys terminal B capability set interaction response message;

S1407: terminal A, according to the transmitting capacity of terminal B and the reception needs of oneself, to terminal B initiating capacity interaction request message, carries the receiving ability collection of terminal A in message;

S1408: terminal B replys terminal A capability set interaction response message;

S1409: terminal A, according to the receiving ability collection of terminal B, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

S1410: terminal B is replied to terminal A and opened logical channel response message;

S1411: terminal B, according to the receiving ability collection of terminal A, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

S1412: terminal A is replied to terminal B and opened logical channel response message.

Wherein a pair request and response message free on sequencing, front two to transmission and receiving ability interaction message transmitting time before first pair of logical channel opens message.According to this rule, the order that the message described in Figure 14 sends can also be 1,3,5,7,2,4,6,8, response message is sent again after terminal A and the first interaction capabilities collection mutually of B, or 1,2,3,4,9,10,5,6,7,8,11,12, after ability completes a part alternately, first open the logical channel of side.

Wherein a terminal A is in the information interactive process of terminal B, if bottom package length allow, then once can carry many message sent out from side end points, such as 1,2+3,4,5,6+7,8,9,10+11,12.Wherein 2+3 represents that terminal B sends to terminal A information, this time mutual in contain 2 and 3 two message.

Preferred embodiment five

In the present embodiment, the capability set carried in negotiation mode capability set interaction message is transmitting capacity collection.Divide following three steps:

Step S1501: capability set is mutual: two long-range presents that to carry out capability set between end points mutual, carries long-rangely to present end points receiving ability collection and transmitting capacity collection parameter in message.

Step S1502: mode request: receiving terminal is according to the specific sending mode of transmitting capacity collection request of transmitting terminal.

Step S1503: logical channel is opened: open two long-range logical channels presented between end points, specifies the channel attributes after consulting.

Be described in detail below by example.

Example one

Figure 16 is the flow chart 13 presenting the machinery of consultation of end points according to the far-end of the embodiment of the present invention, and as shown in 16, the method comprises the steps that S1601 is to step S1612.

Step S1601: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal A in message;

Step S1602: terminal B replys terminal A capability set interaction response message;

Step S1603: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal B in message;

Step S1604: terminal A replys terminal B capability set interaction response message;

Step S1605: the long-range terminal B that presents initiates mode request message to the long-range terminal A that presents, and asks specific sending mode, carries the transmission parameter of terminal A in pattern;

Step S1606: terminal A replys terminal B mode request response message;

Step S1607: the long-range terminal A that presents initiates mode request message to the long-range terminal B that presents, and asks specific sending mode, carries the transmission parameter of terminal B in pattern;

Step S1608: terminal B replys terminal A mode request response message;

Step S1609: terminal A, according to the result of mode request process, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request;

Step S1610: terminal B is replied to terminal A and opened logical channel response message;

Step S1611: terminal B, according to the result of mode request process, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S1612: terminal A is replied to terminal B and opened logical channel response message.

Preferably wherein a pair request and response message free on sequencing, first pair of ability interaction message transmitting time is before first pair of mode request message, and first pair of mode request message is before first pair of logical channel opens message.According to this rule, the order that the message described in Figure 16 sends can also be 1,2,5,6,3,4,7,8,9,10,11,12, or 1,2,5,6,9,10,3,4,7,8,11,12.

Preferred embodiment five

This preferred embodiment provides and a kind of long-rangely presents end-point capability collection parameter, and Figure 17 is the long-range schematic diagram presenting end-point capability collection according to the embodiment of the present invention, as shown in figure 17, is divided into transmitting capacity collection and receiving ability collection.Be described in detail below.

It should be noted that, list the parameter of the just outbalance of description in figure and in above-described embodiment, do not represent whole parameters.The parameter that the parameter transmitted in ability interaction message is whole below not really wanting to comprise, can practical combinations as required.

Transmitting capacity is concentrated mainly to comprise and is caught relevant parameter, catches relevant parameter and comprises general parameter, video parameter and audio frequency parameter.Other parameter that transmitting capacity is concentrated can be used for the coding standard comprised in correlation technique, such as H.263, H.264 etc.

Particularly, general parameter is used for describing scene relevant parameter and universal coding relevant parameter.Its Scene relevant parameter comprises scene description, scene switchover policy, scene areas, metric; Universal coding relevant parameter comprises maximum bandwidth, maximum macroblock number per second, coding standard etc.

Particularly, video parameter is used for describing the attribute of each independent vide of composition capturing scenes.Video parameter mainly comprises Video Capture spatial information, Video Capture coded message, the quantity of Video Capture, video content attribute, video switch strategy, the parameters such as video combined strategy.Wherein Video Capture spatial information comprises capture region, capture point, catches a bit on line; Video Capture coded message comprises the maximum video bandwidth of this Video Capture, maximum macroblock number per second, maximum video resolution width, maximum video resolution height, maximum video frame rate.

Particularly, audio frequency parameter is used for describing the attribute of each independent audio of composition capturing scenes.Audio frequency parameter mainly comprises audio capturing spatial information, audio capturing coded message, the parameters such as audio capturing quantity.Wherein audio capturing spatial information comprises capture region, capture point, catches a bit on line; Audio capturing coded message comprises the voice-grade channel form of this audio capturing, maximal audio bandwidth.

Preferably, receiving ability collection is corresponding with transmitting capacity collection, plays up relevant parameter and catches relevant parameter correspondence.

Particularly, receiving ability is concentrated mainly to comprise and is played up relevant parameter, plays up relevant parameter and comprises general parameter, video parameter and audio frequency parameter.Other parameter that receiving ability is concentrated can be used for comprising decoding standard, such as H.263, H.264 etc.

Particularly, general parameter is used for describing scene relevant parameter and general decoding relevant parameter.Its Scene relevant parameter comprises scene description, scene switchover policy, scene areas, metric etc.; General decoding relevant parameter comprises maximum bandwidth, maximum macroblock number per second, decoding standard etc.

Particularly, video parameter is used for describing the attribute of each independent vide of composition render scenes.Video parameter mainly comprises Video Rendering spatial information, Video Rendering decoded information, the quantity of Video Rendering, contents attribute, and automatically switch strategy, the parameters such as combined strategy.Wherein Video Rendering spatial information comprises and plays up region, plays up a little, play up on line a bit; Video Rendering decoded information comprises the maximum video bandwidth of this Video Rendering, maximum macroblock number per second, maximum video resolution width, maximum video resolution height, maximum video frame rate.

Particularly, audio frequency parameter is used for describing the attribute of each independent audio of composition render scenes.Audio frequency parameter mainly comprises audio frequency and plays up spatial information, and audio frequency plays up decoded information, and audio frequency plays up the parameters such as quantity.Its sound intermediate frequency is played up spatial information and is comprised and play up region, plays up a little, play up on line a bit; Audio frequency is played up decoded information and is comprised the voice-grade channel form that this audio frequency plays up, maximal audio bandwidth.

Preferably, the long-range logical channel attribute presenting end points and specify, mainly comprise the media-related information that this passage is used for transmitting, coding/decoding information etc., if need this logical channel multiplexing, need dedicated tunnel multiplexed information.

Preferred embodiment six

One of the preferred embodiment of the negotiation mode A-1 in preferred embodiment in the present embodiment, what describe is long-rangely present terminal A and long-rangely present capability negotiation flow process concrete between terminal B, wherein terminal A possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker, terminal B possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker.Terminal A is or/and terminal B also can be MCU device.The method comprises the steps that S1702 is to step S1716.

Step S1702: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal A in message.

What receiving ability collection comprised the video parameter played up in relevant parameter is respectively:

Play up the Video Rendering spatial information being designated VR0 and be expressed as a left side, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M;

Play up during the Video Rendering spatial information being designated VR1 is expressed as, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M;

Play up the Video Rendering spatial information being designated VR2 and be expressed as the right side, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M;

Play up the Video Rendering spatial information being designated VR3 and be expressed as a left side, video content attribute is the most loud spokesman, and the maximum video bandwidth in Video Rendering decoded information is 4M, and automatic switchover attribute is YES;

Play up during the Video Rendering spatial information being designated VR4 is expressed as, video content attribute is panoramic video, and the maximum video bandwidth in Video Rendering decoded information is 4M;

Play up the Video Rendering spatial information being designated VR5 and be expressed as the right side, video content attribute is VIP, and the maximum video bandwidth in Video Rendering decoded information is 4M;

What receiving ability collection comprised the audio frequency parameter played up in relevant parameter is:

Playing up the audio content being designated AR0 is main audio, and the audio frequency maximum bandwidth played up in decoded information is 128K, and voice-grade channel form is stereo;

What receiving ability collection comprised the general parameter played up in relevant parameter is:

Scene identity be 1 scene be made up of VR0, VR1, VR2, scene description is for playing up left, center, right video, and H.264 encoding and decoding standard is, maximum bandwidth is 12M;

Scene identity be 2 scene be made up of VR3, VR4, VR5, scene description is for playing up the most loud spokesman, panorama, VIP video, and H.264 encoding and decoding standard is, maximum bandwidth is 12M;

Scene identity be 3 scene be made up of AR0, scene description is for playing up main audio, and G.711 encoding and decoding standard is, maximum bandwidth is 128K.

Step S1704: terminal B replys terminal A capability set interaction response message;

Step S1706: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal B in message;

Scene identity be 1 scene be made up of VR0, VR1, VR2, scene description is for playing up left, center, right video, and H.264 encoding and decoding standard is, maximum bandwidth is 12M.

Scene identity be 2 scene be made up of AR0, scene description is for playing up main audio, and G.711 encoding and decoding standard is, maximum bandwidth is 128K.

Step S1708: terminal A replys terminal B capability set interaction response message.

Step S1710: terminal B, according to the receiving ability of terminal A, in conjunction with the transmitting capacity of oneself, determines the scene 1 that sending endpoint A receiving ability is concentrated and scene 3.Terminal B sends to terminal A and opens logical channel request message, dedicated tunnel attribute, and the forward direction logical channel of B to A is opened in request.The logical channel attribute of specifying is respectively:

One road video logic passage transmits 3 road RTP video flowings, and a road audio logical channel transmits 1 road RTP audio stream.Video channel media-related information is for sending VR0, VR1, VR2 video; H.264, code-related information is encoded for adopting, and maximum bandwidth is 12M; Multiplexed information is the value of the RTP head expansion mark that VR0, VR1, VR2 are corresponding is respectively 0,1,2, is used for distinguishing rtp streamings different in same logical channel.Voice-grade channel media-related information is for sending AR0 audio frequency, and G.711 code-related information is, maximum bandwidth is 128K.

Step S1712: terminal A is replied to terminal B and opened logical channel response message;

Step S1714: terminal A, according to the receiving ability of terminal B, in conjunction with the transmitting capacity of oneself, determines the scene 1 that sending endpoint B receiving ability is concentrated and scene 2.Terminal A sends to terminal B and opens logical channel request message, dedicated tunnel attribute, and the forward direction logical channel of A to B is opened in request.The logical channel attribute of specifying is respectively:

Step S1716: terminal B is replied to terminal A and opened logical channel response message.

Preferred embodiment seven

This preferred embodiment is one of preferred embodiment of preferred embodiment negotiation mode A-1, description be long-rangely present terminal A and long-rangely present capability negotiation flow process concrete between terminal B.Terminal A and terminal B are telepresence video conferencing endpoints, and terminal A possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker, and terminal B possesses 1 camera, 1 display, 1 microphone, 1 loud speaker.Terminal A is or/and terminal B also can be MCU device.The method comprises the steps that S1802 is to step S1816.

Step S1802: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal A in message.

Preferably, the video parameter played up in relevant parameter that receiving ability collection comprises is respectively:

Play up the Video Rendering spatial information being designated VR0 and be expressed as a left side, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M.

Play up during the Video Rendering spatial information being designated VR1 is expressed as, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M.

Play up the Video Rendering spatial information being designated VR2 and be expressed as the right side, video content attribute is main video, and the maximum video bandwidth in Video Rendering decoded information is 4M.

Play up during the Video Rendering spatial information being designated VR3 is expressed as, video content attribute is panoramic video, and the maximum video bandwidth in Video Rendering decoded information is 4M.

Preferably, what receiving ability collection comprised the audio frequency parameter played up in relevant parameter is:

Playing up the audio content being designated AR0 is main audio, and the audio frequency maximum bandwidth played up in decoded information is 128K, and voice-grade channel form is stereo.

Scene identity be 2 scene be made up of VR3, scene description is for playing up panoramic video, and H.264 encoding and decoding standard is, maximum bandwidth is 4M.

Step S1804: terminal B replys terminal A capability set interaction response message.

Step S1806: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the receiving ability collection of terminal B in message.

Play up be designated VR0 scene description for playing up panoramic video, H.264 encoding and decoding standard is, maximum bandwidth is 4M.

Scene identity be 1 scene be made up of VR0, scene description is for playing up panoramic video, and H.264 encoding and decoding standard is, maximum bandwidth is 4M.

Step S1808: terminal A replys terminal B capability set interaction response message.

Step S1810: terminal B, according to the receiving ability of terminal A, in conjunction with the transmitting capacity of oneself, determines the scene 2 that sending endpoint A receiving ability is concentrated and scene 3.Terminal B sends to terminal A and opens logical channel request message, dedicated tunnel attribute, and the forward direction logical channel of B to A is opened in request.The logical channel attribute of specifying is respectively:

One road video logic passage transmits 1 road RTP video flowing, and a road audio logical channel transmits 1 road RTP audio stream.Video channel media-related information is for sending VR3 video; H.264, code-related information is encoded for adopting, and maximum bandwidth is 4M; Without multiplexed information.Voice-grade channel media-related information is for sending AR0 audio frequency, and G.711 code-related information is, maximum bandwidth is 128K.

Step S1812: terminal A is replied to terminal B and opened logical channel response message.

Step S1814: terminal A, according to the receiving ability of terminal B, in conjunction with the transmitting capacity of oneself, determines the scene 1 that sending endpoint B receiving ability is concentrated and scene 2.Terminal A sends to terminal B and opens logical channel request message, dedicated tunnel attribute, and the forward direction logical channel of A to B is opened in request.The logical channel attribute of specifying is respectively:

One road video logic passage transmits 1 road RTP video flowing, and a road audio logical channel transmits 1 road RTP audio stream.Video channel media-related information is for sending VR0 video; H.264, code-related information is encoded for adopting, and maximum bandwidth is 12M; Without multiplexed information.Voice-grade channel media-related information is for sending AR0 audio frequency, and G.711 code-related information is, maximum bandwidth is 128K.

Step S1816: terminal B is replied to terminal A and opened logical channel response message.

Preferred embodiment eight

This preferred embodiment is one of preferred embodiment of negotiation mode A-2, description be long-rangely present terminal A and long-rangely present capability negotiation flow process concrete between terminal B.Terminal A and terminal B are telepresence video conferencing endpoints, and terminal A possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker, and terminal B possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker.Terminal A is or/and terminal B also can be MCU device.This preferred embodiment comprises the steps that S1902 is to step S1916.

Step S1902: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the symmetric capability collection of terminal A in message;

What symmetric capability collection comprised the video parameter played up/catch in relevant parameter is respectively:

Play up/catch the Video Rendering spatial information being designated VR0 and be expressed as a left side, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

Play up/catch during the Video Rendering spatial information being designated VR1 is expressed as, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

Play up/catch the Video Rendering spatial information being designated VR2 and be expressed as the right side, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

Playing up/catch the audio content being designated AR0 is main audio, and the audio frequency maximum bandwidth played up/catch in coding/decoding information is 128K, and voice-grade channel form is stereo;

What symmetric capability collection comprised the general parameter played up/catch in relevant parameter is:

Scene identity be 2 scene be made up of VR3, scene description is for playing up panoramic video, and H.264 encoding and decoding standard is, maximum bandwidth is 4M;

Step S1904: terminal B replys terminal A capability set interaction response message;

Step S1906: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the symmetric capability collection of terminal B in message;

Play up/catch the Video Rendering/capture space information being designated VR0 and be expressed as a left side, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

Play up/catch during the Video Rendering/capture space information being designated VR1 is expressed as, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

Play up/catch the Video Rendering/capture space information being designated VR2 and be expressed as the right side, video content attribute is main video, and Video Rendering/maximum video bandwidth of catching in coding/decoding information is 4M;

What receiving ability collection comprised the general parameter played up/catch in relevant parameter is:

Scene identity be 1 scene be made up of VR0, VR1, VR2, scene description is for playing up/catching left, center, right video, and H.264 encoding and decoding standard is, maximum bandwidth is 12M;

Scene identity be 2 scene be made up of AR0, scene description is for playing up/catching main audio, and G.711 encoding and decoding standard is, maximum bandwidth is 128K.

Step S1908: terminal A replys terminal B capability set interaction response message;

Step S1910: terminal B, according to the symmetric capability of terminal A, in conjunction with the ability of oneself, determines the scene 1 that sending endpoint A receiving ability is concentrated and scene 3.Terminal B sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request.The logical channel attribute of specifying is respectively:

Step S1912: terminal A is replied to terminal B and opened logical channel response message;

Step S1914: terminal A, according to the symmetric capability of terminal B, in conjunction with the transmitting capacity of oneself, determines the scene 1 that sending endpoint B receiving ability is concentrated and scene 2.Terminal A sends to terminal B and opens logical channel request message, dedicated tunnel attribute, and the forward direction logical channel of A to B is opened in request.The logical channel attribute of specifying is respectively:

Step S1916: terminal B is replied to terminal A and opened logical channel response message.

Preferred embodiment nine

This preferred embodiment is one of most preferred embodiment of negotiation mode A-3-1, description be long-rangely present terminal A and long-rangely present capability negotiation flow process concrete between terminal B.Terminal A and terminal B are telepresence video conferencing endpoints, and terminal A possesses 3 cameras, 3 displays, 1 microphone, 1 loud speaker, and terminal B possesses 1 camera, 1 display, 1 microphone, 1 loud speaker.Terminal A is or/and terminal B also can be MCU device.The preferred embodiment comprises the steps that S2002 is to step S2016.

Step S2002: the long-range terminal A that presents presents terminal B initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal A in message;

What transmitting capacity collection comprised the video parameter of catching in relevant parameter is respectively:

Catch the Video Capture spatial information being designated VR0 and be expressed as a left side, video content attribute is main video, and the maximum video bandwidth in Video Capture coded message is 4M;

Catch during the Video Capture spatial information being designated VR1 is expressed as, video content attribute is main video, and the maximum video bandwidth in Video Capture coded message is 4M;

Catch the Video Capture spatial information being designated VR2 and be expressed as the right side, video content attribute is main video, and the maximum video bandwidth in Video Capture coded message is 4M;

Catching the video content attribute being designated VR3 is panorama, and the maximum video bandwidth in Video Capture coded message is 4M;

What receiving ability collection comprised the audio frequency parameter of catching in relevant parameter is:

Catching the audio content being designated AR0 is main audio, and the maximum bandwidth in audio capturing coded message is 128K, and voice-grade channel form is stereo;

What transmitting capacity collection comprised the general parameter of catching in relevant parameter is:

Scene identity be 1 scene be made up of VR0, VR1, VR2, scene description for catching left, center, right video, compile coding standard be H.264, maximum bandwidth is 12M;

Scene identity be 2 scene be made up of VR3, scene description for catching panoramic video, compile coding standard be H.264, maximum bandwidth is 4M;

Scene identity be 3 scene be made up of AR0, scene description for catching main audio, compile coding standard be G.711, maximum bandwidth is 128K.

Step S2004: terminal B replys terminal A capability set interaction response message, carries B concentrates selection parameter from the transmitting capacity of A: the media scene 2 and scene 3;

Step S2006: the long-range terminal B that presents presents terminal A initiating capacity collection interaction request to long-range, carries the transmitting capacity collection of terminal B in message;

Catch be designated VR0 scene description for catching panoramic video, H.264 coding standard is, maximum bandwidth is 4M;

Scene identity be 1 scene be made up of VR0, scene description is for catching panoramic video, and H.264 coding standard is, maximum bandwidth is 4M;

Scene identity be 2 scene be made up of AR0, scene description is for catching main audio, and G.711 coding standard is, maximum bandwidth is 128K.

Step S2008: terminal A replys terminal B capability set interaction response message, carries A concentrates selection parameter from the transmitting capacity of B: the media scene 1 and scene 2;

Step S2010: the ability that terminal A is selected in capability set interaction response according to terminal B, sends to terminal B and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of A to B is opened in request.The channel attributes of specifying is:

Step S2012: terminal B is replied to terminal A and opened logical channel response message;

Step S2014: the ability that terminal B is selected at capability set interaction response according to terminal A, sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, the forward direction logical channel of B to A is opened in request;

Step S2016: terminal A is replied to terminal B and opened logical channel response message.

It should be noted that, the corresponding embodiment of other method and above-described embodiment similar.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the long-range ability exchange method presenting end points, is characterized in that comprising:

First long-rangely presents end points and second long-range to present ability of carrying out between end points mutual, and wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection;

The described first long-range end points that presents is opened described first according to the result that described ability is mutual and is long-rangely presented end points and the described second long-range logical channel presented between end points.

2. method according to claim 1, is characterized in that, the first long-range end points and second that presents long-rangely presents ability of carrying out between end points and comprises alternately:

3. method according to claim 1, is characterized in that, the first long-range end points and second that presents long-rangely presents ability of carrying out between end points and comprises alternately:

4. according to the method in claim 2 or 3, it is characterized in that,

5. according to the method in claim 2 or 3, it is characterized in that,

Described first long-range present end points receive described second long-range present the first logical channel request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described first logical channel request to the described second long-range end points that presents;

6. according to the method in claim 2 or 3, it is characterized in that,

Long-range present after end points sends the first ability collection interaction request at the described first long-range end points that presents to described second, also comprise: the described first long-range end points that presents receives the described second long-range response message corresponding to described the first ability collection interaction request presenting end points and send;

7. according to the method in claim 2 or 3, it is characterized in that,

Described first long-range present end points receive second long-range present the second ability collection interaction request that end points sends after, also comprise: the described first long-range end points that presents sends correspond to the response message of described the second ability collection interaction request to the described second long-range end points that presents;

8. according to the method in any one of claims 1 to 3, it is characterized in that, comprise and long-rangely present end points receiving ability collection, the wherein said long-range end points receiving ability that presents comprises: rendering parameter, described rendering parameter comprises: general parameter, video parameter and/or audio frequency parameter.

9. method according to claim 8, it is characterized in that, described general parameter comprises: media hype content, scene description, scene switchover policy, universal space information and/or universal coding information, wherein, described media hype content is for representing the attribute of the capture content playing up end points needs; Described scene description, for providing the description of overall scenario; Described scene switchover policy, is used to indicate supported media switchover policy.

10. method according to claim 9, it is characterized in that, described scene switchover policy comprises place switchover policy and/or part switchover policy, wherein, described place switchover policy is switch whole playing up simultaneously, play up come together from same end points place for ensureing, described part switchover policy is different play up at different time-switchings, from identical and/or different end points.

11. methods according to claim 9, it is characterized in that, described universal space information: comprise scene areas and/or region calibration parameters, wherein, described scene areas parameter is for representing the scope of the overall scenario relevant to end points, and described region scale is used for the kind of the scale that representation space information parameter adopts.

12. methods according to claim 9, it is characterized in that, universal coding information comprises whole maximum bandwidths, whole maximum pixel numbers per second and/or whole per second maximum macroblock number, wherein, described whole maximum bandwidth represents by the bit rate of the maximum quantity per second of the whole code streams playing up the preset kind that end points receives; The maximum pixel number of the process per second of whole absolute coding in described maximum pixel number presentation code group per second all; Described per second maximum macroblock number all represents all videos code stream received by end points maximum macroblock number per second.

13. methods according to claim 8, is characterized in that, described video parameter comprises: Video Rendering quantity, Video Rendering spatial information and/or Video Rendering coded message, and wherein, described Video Rendering quantity is for representing the quantity of Video Rendering; Described Video Rendering spatial information is a part in overall render scenes for what represent that this Video Rendering represents.

14. methods according to claim 13, is characterized in that, described Video Rendering coded message comprises maximum video bandwidth, maximum pixel number per second, the width of maximum video resolution, the height of maximum video resolution and/or maximum video frame rate; Wherein, described maximum video bandwidth, this parameter is for representing the maximum number bits per second of single Video coding; Described maximum pixel number per second, this parameter is for representing the maximum pixel number per second of single Video coding; The width of described maximum video resolution, this parameter is for representing the width of the maximum video resolution in units of pixel; The height of described maximum video resolution, this parameter is for representing the height of the maximum video resolution in units of pixel; Described maximum video frame rate, this parameter is for representing maximum video frame rate.

15. methods according to claim 8, is characterized in that, described audio frequency parameter comprises: audio frequency plays up quantity, audio frequency plays up spatial information and/or audio frequency plays up coded message, and wherein, described audio frequency plays up quantity for representing the quantity that audio frequency is played up; Described audio frequency plays up spatial information for representing that audio frequency plays up spatial information residing in overall render scenes.

16. methods according to claim 15, is characterized in that, described audio frequency is played up coded message and comprised: voice-grade channel form and/or maximal audio bandwidth, and wherein, described voice-grade channel form, for representing the attribute of voice-grade channel; Described maximal audio bandwidth, for representing the maximum number bits per second that single audio frequency is encoded.

17. 1 kinds of long-range ability interactive devices presenting end points, are applied to first and long-rangely present end points, it is characterized in that comprising:

Interactive module, for and second long-range to present ability of carrying out between end points mutual, wherein, carry in the message that described ability is mutual and long-rangely present end-point capability collection, the described long-range end-point capability collection that presents comprises: long-rangely present end points receiving ability collection;

Processing module, opens described first for the result mutual according to described ability and long-rangely presents end points and the described second long-range logical channel presented between end points.

18. devices according to claim 17, is characterized in that, described interactive module comprises:

19. devices according to claim 17, is characterized in that, described interactive module comprises:

20. 1 kinds of data flow, is characterized in that, comprising: long-rangely present end points receiving ability collection, and wherein, the described long-range end points receiving ability that presents comprises: rendering parameter, described rendering parameter comprises: general parameter, video parameter and/or audio frequency parameter.

21. data flow according to claim 20, it is characterized in that, described general parameter comprises: media hype content, scene description, scene switchover policy, universal space information and/or universal coding information, wherein, described media hype content is for representing the attribute of the capture content playing up end points needs; Described scene description, for providing the description of overall scenario; Described scene switchover policy, is used to indicate supported media switchover policy.

22. data flow according to claim 21, it is characterized in that, described scene switchover policy comprises place switchover policy and/or part switchover policy, wherein, described place switchover policy is switch whole playing up simultaneously, play up come together from same end points place for ensureing, described part switchover policy is different play up at different time-switchings, from identical and/or different end points.

23. data flow according to claim 21, it is characterized in that, described universal space information: comprise scene areas and/or region calibration parameters, wherein, described scene areas parameter is for representing the scope of the overall scenario relevant to end points, and described region scale is used for the kind of the scale that representation space information parameter adopts.

24. data flow according to claim 21, it is characterized in that, universal coding information comprises whole maximum bandwidths, whole maximum pixel numbers per second and/or whole per second maximum macroblock number, wherein, described whole maximum bandwidth represents by the bit rate of the maximum quantity per second of the whole code streams playing up the preset kind that end points receives; The maximum pixel number of the process per second of whole absolute coding in described maximum pixel number presentation code group per second all; Described per second maximum macroblock number all represents all videos code stream received by end points maximum macroblock number per second.

25. data flow according to claim 20, is characterized in that, described video parameter comprises: Video Rendering quantity, Video Rendering spatial information and/or Video Rendering coded message, and wherein, described Video Rendering quantity is for representing the quantity of Video Rendering; Described Video Rendering spatial information is a part in overall render scenes for what represent that this Video Rendering represents.

26. data flow according to claim 25, is characterized in that, described Video Rendering coded message comprises maximum video bandwidth, maximum pixel number per second, the width of maximum video resolution, the height of maximum video resolution and/or maximum video frame rate; Wherein, described maximum video bandwidth, this parameter is for representing the maximum number bits per second of single Video coding; Described maximum pixel number per second, this parameter is for representing the maximum pixel number per second of single Video coding; The width of described maximum video resolution, this parameter is for representing the width of the maximum video resolution in units of pixel; The height of described maximum video resolution, this parameter is for representing the height of the maximum video resolution in units of pixel; Described maximum video frame rate, this parameter is for representing maximum video frame rate.

27. data flow according to claim 20, is characterized in that, described audio frequency parameter comprises: audio frequency plays up quantity, audio frequency plays up spatial information and/or audio frequency plays up coded message, and wherein, described audio frequency plays up quantity for representing the quantity that audio frequency is played up; Described audio frequency plays up spatial information for representing that audio frequency plays up spatial information residing in overall render scenes.

28. data flow according to claim 27, is characterized in that, described audio frequency is played up coded message and comprised: voice-grade channel form and/or maximal audio bandwidth, and wherein, described voice-grade channel form, for representing the attribute of voice-grade channel; Described maximal audio bandwidth, for representing the maximum number bits per second that single audio frequency is encoded.