CN104219485B

CN104219485B - The long-range ability exchange method and device that endpoint is presented

Info

Publication number: CN104219485B
Application number: CN201310213835.0A
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: 2019-07-23
Anticipated expiration: 2033-06-01
Also published as: WO2014190810A1; CN104219485A

Abstract

The invention discloses a kind of long-range ability exchange methods and device, data flow that terminal is presented, this method comprises: the first long-range present carries out ability interaction between endpoint and the second long-range presentation endpoint, wherein, it is carried in the message of ability interaction and end-point capability collection is remotely presented, the long-range end-point capability collection that presents includes: long-range presentation endpoint transmitting capacity collection；The first long-range endpoint that presents is according to the long-range logical channel presented between endpoint and the second long-range presentation endpoint of the interactive result opening first of ability.Through the invention, the long-range ability interaction that terminal is presented is realized, user experience is improved.

Description

The long-range ability exchange method and device that endpoint is presented

Technical field

The present invention relates to the communications field, in particular to a kind of long-range ability exchange method that endpoint is presented and device, Data flow.

Background technique

It, can only be to biography when using capability negotiation is H.245 carried out currently based in video conference class product H.323 The video conference class end-point capability of system is held consultation, and can not be held consultation to the long-range ability that endpoint is presented.It is in particular in energy When power interaction, the coding/decoding capability of traditional video conference endpoint can only be interacted, can not be presented what endpoint increased newly to long-range Media stream receiver and transmitting capacity interact.When opening logical channel, also can only encoding and decoding attribute to logical channel into Row is specified, can not be multiplexed attribute and these long-range presentation endpoint energy to the media flow attribute of logical channel, encoding and decoding attribute Binding relationship between power attribute is specified.

Aiming at the problem that machinery of consultation in the related technology can not hold consultation to the long-range capability set that endpoint is presented, at present Not yet put forward effective solutions.

Summary of the invention

The present invention provides endpoint is presented in a kind of distal end ability exchange methods and device, data flow, at least to solve State problem.

According to an aspect of the invention, there is provided the ability exchange method of endpoint is presented in a kind of distal end, comprising: first is remote Cheng Chengxian endpoint and the second long-range present carry out ability interaction between endpoint, wherein carry in the message of the ability interaction Long-range that end-point capability collection is presented, the long-range presentation end-point capability collection includes: long-range presentation endpoint transmitting capacity collection；Described first Long-range presentation endpoint is opened the described first long-range endpoint and described second that presents according to the result of ability interaction and is remotely presented Logical channel between endpoint.

Preferably, carrying out ability interaction between the first long-range presentation endpoint and the second long-range presentation endpoint includes:

Described first long-range presentation endpoint sends the first ability collection interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the first ability collection interaction request；

The described first long-range endpoint that presents receives the second the second ability collection interaction request that remotely presentation endpoint is sent, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the second ability collection interaction request；

The described first long-range endpoint that presents is to described second long-range presentation endpoint transmission the first logical channel request, wherein The described first long-range endpoint that presents remotely is presented what endpoint selected in capability set interaction response according to described second received Ability determines that the first logical channel is requested, wherein the first logical channel request opens described first for request and is remotely in The forward direction logical channel between endpoint is remotely presented to described second for existing endpoint；

The described first long-range endpoint that presents receives described second long-range the second logical channel request that endpoint is presented and sends, In, the second logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What the ability selected in capability set interaction response determined, the second logical channel request is for requesting opening described second remote The forward direction logical channel between endpoint is remotely presented to described first for Cheng Chengxian endpoint.

Described first long-range presentation endpoint sends third capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the third capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission third logical channel request, wherein The described first long-range endpoint that presents remotely is presented what endpoint selected in capability set interaction response according to described second received Ability determines the third logical channel request, wherein the third logical channel request is for requesting opening described first remote The forward direction logical channel between endpoint is remotely presented to described second for Cheng Chengxian endpoint；

The described first long-range endpoint that presents receives the second the 4th capability set interaction request that remotely presentation endpoint is sent, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 4th capability set interaction request；

The described first long-range endpoint that presents receives the described second long-range the 4th logical channel request that endpoint is presented and sends, In, the 4th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What the ability selected in capability set interaction response determined, the 4th logical channel request is for requesting opening described second remote The forward direction logical channel between endpoint is remotely presented to described first for Cheng Chengxian endpoint.

Preferably, in the described first long-range endpoint that presents to the described second long-range presentation endpoint transmission the first ability collection interaction After request, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to it is described The response message of the first ability collection interaction request；Wherein, it is carried in the response message of the first ability collection interaction request State the second long-range parameter that endpoint is presented and concentrates selection from first transmitting capacity；

Described first it is long-range present endpoint to described second it is long-range present endpoint send third capability set interaction request it Afterwards, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to first energy The response message of power collection interaction request；Wherein, described second is carried in the response message of the third capability set interaction request The long-range parameter that endpoint is presented and concentrates selection from first transmitting capacity.

Preferably, the second the second ability collection interaction that remotely presentation endpoint is sent is received in the described first long-range endpoint that presents After request, further includes: the described first long-range presentation endpoint is sent to the described second long-range presentation endpoint corresponds to described second The response message of capability set interaction request；Wherein, described is carried in the response message of the second ability collection interaction request The one long-range parameter that endpoint is presented and concentrates selection from second transmitting capacity；

Described first it is long-range present endpoint receive second remotely present the 4th capability set interaction request that endpoint is sent it Afterwards, further includes: the described first long-range presentation endpoint is sent to the described second long-range presentation endpoint corresponds to the 4th capability set The response message of interaction request；Wherein, it is long-range that described first is carried in the response message of the 4th capability set interaction request The parameter that endpoint concentrates selection from second transmitting capacity is presented.

Preferably, lead in described first the second logic that remotely presentation endpoint receives that the described second long-range presentation endpoint is sent After road request, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to institute It states the second logical channel and requests corresponding response message；

The described second long-range the 4th logical channel request that endpoint is presented and sends is received in the described first long-range endpoint that presents Later, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to the described 4th Logical channel requests corresponding response message.

Preferably, lead in described first the first logic that remotely presentation endpoint receives that the described second long-range presentation endpoint is sent After road request, further includes: the described first long-range presentation endpoint sends first logic to the described second long-range endpoint that presents The corresponding response message of channel request；

The described second long-range third logical channel request that endpoint is presented and sends is received in the described first long-range endpoint that presents Later, further includes: the described first long-range endpoint that presents is asked to the described second long-range endpoint transmission third logical channel that presents Seek corresponding response message.

Described first long-range presentation endpoint sends the 5th capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 5th capability set interaction request；

The described first long-range endpoint that presents receives the second the 6th capability set interaction request that remotely presentation endpoint is sent, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 6th capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the 5th logical channel request, wherein The 5th logical channel request is the described first long-range endpoint that presents according to the long-range presentation endpoint of described second received What transmitting capacity collection and the first long-range reception ability that endpoint is presented determined, the 5th logical channel request is beaten for requesting The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint.

The described first long-range endpoint that presents receives the described second long-range the 6th logical channel request that endpoint is presented and sends, In, the 6th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received Transmitting capacity collection and second long-range the receptions ability that endpoint is presented determine that the 6th logical channel is requested for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint.

Described first long-range presentation endpoint sends the 7th capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 7th capability set interaction request；

The described first long-range endpoint that presents receives the described second long-range the 7th logical channel request that endpoint is presented and sends, In, the 7th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received Transmitting capacity collection and second long-range the receptions ability that endpoint is presented determine that the 7th logical channel is requested for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint；

The described first long-range endpoint that presents receives the second the 8th capability set interaction request that remotely presentation endpoint is sent, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 8th capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the 8th logical channel request, wherein The 8th logical channel request is the described first long-range endpoint that presents according to the long-range presentation endpoint of described second received What transmitting capacity collection and the first long-range reception ability that endpoint is presented determined, the 8th logical channel request is beaten for requesting The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint.

Preferably, in the described first long-range endpoint that presents to the described second long-range presentation endpoint transmission the 5th capability set interaction After request, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to it is described The response message of 5th capability set interaction request；

Described first it is long-range present endpoint to described second it is long-range present endpoint send the 7th capability set interaction request it Afterwards, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to first energy The response message of power collection interaction request.

Preferably, the second the 6th capability set interaction that remotely presentation endpoint is sent is received in the described first long-range endpoint that presents After request, further includes: the described first long-range presentation endpoint is sent to the described second long-range presentation endpoint corresponds to the described 6th The response message of capability set interaction request；

Described first it is long-range present endpoint receive second remotely present the 8th capability set interaction request that endpoint is sent it Afterwards, further includes: the described first long-range presentation endpoint is sent to the described second long-range presentation endpoint corresponds to the 8th capability set The response message of interaction request；

Preferably, lead in the described first the 6th logic that remotely presentation endpoint receives that the described second long-range presentation endpoint is sent After road request, further includes: described first it is long-range present endpoint to described second it is long-range endpoint is presented and sends correspond to described the Six logical channels request corresponding response message；

The described second long-range the 7th logical channel request that endpoint is presented and sends is received in the described first long-range endpoint that presents Later, further includes: described first, which is remotely presented endpoint, patrols to what the described second long-range presentation endpoint was sent corresponding to the described 7th Collect the corresponding response message of channel request.

Preferably, it is asked in the described first long-range presentation endpoint to the described second long-range the 5th logical channel of endpoint transmission that presents After asking, further includes: the described first long-range endpoint that presents receives the described second long-range the 5th logic that endpoint is presented and sends The corresponding response message of channel request；

After the described first long-range presentation endpoint sends the request of the 8th logical channel to the described second long-range presentation endpoint, Further include: the described first long-range endpoint that presents receives the described second long-range the 8th logical channel request that endpoint is presented and sends Corresponding response message.

Preferably, the long-range presentation end-point capability collection includes: transmitting capacity collection, and the transmitting capacity collection includes: capture Parameter, the capture parameter includes: general parameter, video parameter and/or audio frequency parameter.

Preferably, the general parameter includes media capture content, scene description, scene switching strategy, universal space letter Breath and/or universal coding information；The purposes of the media capture content representation media capture；The scene description is for providing The description of overall scenario.

Preferably, the scene switching strategy is used to indicate supported media switchover policy, wherein the media of the support The strategy of switching includes place switchover policy and part switchover policy, wherein the place switchover policy is used to indicate while cutting Whole captures is changed, to guarantee that capture comes from the same endpoint place together, the part switchover policy is used to indicate different Capture can switch in different times, and from identical and/or different long-range presentation endpoint.

Preferably, the universal space information includes scene areas and/or region calibration parameters, wherein the scene area Field parameter is used to indicate the range of overall scenario relevant to endpoint, and the region scale shows the use of spatial information parameter The type of scale.

Preferably, the universal coding information includes whole maximum bandwidths, whole maximum pixel number per second and/or complete The maximum macroblock number per second in portion, wherein the whole maximum bandwidth is used to indicate whole codes of the preset kind issued by terminal The bit rate of the maximum quantity per second of stream；Whole maximum pixel number per second is for absolute codings whole in presentation code group Maximum pixel number per second；Whole maximum macroblock number per second indicates all videos code stream maximum per second sent by endpoint Macroblock number.

Preferably, the video parameter includes: that video capture quantity, video capture spatial information and/or video capture are compiled Code information；The video capture quantity is used to indicate the quantity of video capture.

Preferably, the video capture spatial information includes the point on capture region, capture point and/or capture line, wherein The capture region is used to indicate that the video to capture the locating spatial position in whole capturing scenes；The capture point is used In instruction in capturing scenes, the position of video capture；Point on the capture line, describes second on capture device optical axis The spatial position of a point, and first point is capture point.

Preferably, the video captures encoded information, including maximum video bandwidth, maximum pixel number per second, maximum video The width of resolution ratio, the height of maximum video resolution and/or maximum video frame rate；Wherein, the maximum video bandwidth, is used In the maximum number bits per second for indicating single Video coding；The maximum pixel number per second, the parameter is for indicating single video The maximum pixel number per second of coding；The width of the maximum video resolution, the parameter is for indicating as unit of pixel most The width of big video resolution；The height of the maximum video resolution, the parameter are used to indicate the maximum as unit of pixel The height of video resolution；The maximum video frame rate, the parameter show maximum video frame rate.

Preferably, the audio frequency parameter includes audio capturing quantity, audio capturing spatial information and/or audio capturing coding Information；The audio capturing quantity is used to indicate the quantity of audio capturing.

Preferably, the audio capturing spatial information includes: capture region and/or capture point, wherein the trapping region Domain, for indicating audio capturing spatial position locating for whole capturing scenes；The capture point, for indicating in capturing scenes In, the position of audio capturing.

Preferably, the audio capturing encoded information includes: voice-grade channel format and/or maximal audio bandwidth；The sound Frequency channel format is used to indicate the attribute of voice-grade channel；The maximal audio bandwidth is used to indicate the per second of single audio frequency coding Maximum number bits.

According to another aspect of the present invention, a kind of ability interactive device of distal end presentation endpoint is provided, comprising: interaction mould Block, is used for and the second long-range present carries out ability interaction between endpoint, wherein carries in the message of the ability interaction long-range End-point capability collection is presented, wherein the long-range presentation end-point capability collection is long-range presentation endpoint transmitting capacity collection；Processing module, For opening the logical channel between the second long-range presentation endpoint according to interaction results.

Preferably, the interactive module includes: the first sending module, for sending the to the described second long-range endpoint that presents One capability set interaction request, wherein carry described first in the first ability collection interaction request and long-range be presented the of endpoint One transmitting capacity collection；

First receiving module, for receiving the second long-range the second ability collection interaction request that endpoint is presented and sends, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the second ability collection interaction request；

Second sending module, for sending the request of the first logical channel to the described second long-range endpoint that presents, wherein described The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the first long-range endpoint that presents, Determine that the first logical channel is requested, wherein the first logical channel request is for requesting opening described first is long-range end is presented The forward direction logical channel between endpoint is remotely presented to described second for point；

Second receiving module, for described second long-range the second logical channel request that endpoint is presented and sends, wherein described The request of second logical channel is that endpoint is remotely presented according to described first received in ability for the described second long-range endpoint that presents What the ability selected in collection interaction response determined, second logical channel is requested for requesting to open the described second long-range presentation The forward direction logical channel between endpoint is remotely presented to described first for endpoint.

Preferably, the interactive module includes:

Third sending module, for sending third capability set interaction request to the described second long-range endpoint that presents, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in third capability set interaction request；

4th sending module, for sending the request of third logical channel to the described second long-range endpoint that presents, wherein described The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the first long-range endpoint that presents, Determine the third logical channel request, wherein the third logical channel request opens described first for request and is remotely in The forward direction logical channel between endpoint is remotely presented to described second for existing endpoint；

Third receiving module, for receiving the second long-range the 4th capability set interaction request that endpoint is presented and sends, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 4th capability set interaction request；

4th receiving module, for receiving the described second long-range the 4th logical channel request that endpoint is presented and sends, wherein The 4th logical channel request is that the described second long-range endpoint that presents exists according to the long-range endpoint that presents of described first received What the ability selected in capability set interaction response determined, the 4th logical channel request is for requesting opening described second long-range Endpoint is presented to the described first long-range forward direction logical channel presented between endpoint.

Preferably, the interactive module includes:

5th sending module, for sending the 5th capability set interaction request to the described second long-range endpoint that presents, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in the 5th capability set interaction request；

5th receiving module, for receiving the second long-range the 6th capability set interaction request that endpoint is presented and sends, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 6th capability set interaction request；

6th sending module, for sending the request of the 5th logical channel to the described second long-range endpoint that presents, wherein described The request of 5th logical channel is the described first long-range transmission for endpoint being presented, endpoint being remotely presented according to described second received What capability set and the first long-range reception ability that endpoint is presented determined, the 5th logical channel request opens institute for requesting The first long-range endpoint that presents is stated to the described second long-range reverse logic channel presented between endpoint；

6th receiving module, for receiving the described second long-range the 6th logical channel request that endpoint is presented and sends, wherein The 6th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What transmitting capacity collection and the second long-range reception ability that endpoint is presented determined, the 6th logical channel request is beaten for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint.

Preferably, the interactive module includes:

7th sending module, for sending the 7th capability set interaction request to the described second long-range endpoint that presents, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in the 7th capability set interaction request；

7th receiving module, for receiving the described second long-range the 7th logical channel request that endpoint is presented and sends, wherein The 7th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What transmitting capacity collection and the second long-range reception ability that endpoint is presented determined, the 7th logical channel request is beaten for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint；

8th receiving module, for receiving the second long-range the 8th capability set interaction request that endpoint is presented and sends, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 8th capability set interaction request；

8th sending module, for sending the request of the 8th logical channel to the described second long-range endpoint that presents, wherein described The request of 8th logical channel is the described first long-range transmission for endpoint being presented, endpoint being remotely presented according to described second received What capability set and the first long-range reception ability that endpoint is presented determined, the 8th logical channel request opens institute for requesting The first long-range endpoint that presents is stated to the described second long-range reverse logic channel presented between endpoint.

According to another aspect of the invention, a kind of data flow is additionally provided, comprising: it is long-range that end-point capability collection is presented, wherein The long-range presentation end-point capability collection includes: transmitting capacity collection, and the transmitting capacity collection includes: capture parameter, the capture ginseng Number includes: general parameter, video parameter and/or audio frequency parameter.

Through the invention, the long-range ability interaction that terminal is presented is realized, user experience is improved.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart for the ability exchange method that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 2 is the structural block diagram for the ability interactive device that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 3 is the preferred structural block diagram for the ability interactive device that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 4 is the flow chart one for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 5 is the flowchart 2 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 6 is the flow chart 3 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 7 is the flow chart four for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 8 is the flow chart five for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Fig. 9 is the flow chart six for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 10 is the flow chart seven for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 11 is the flow chart eight for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 12 is the flow chart nine for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 13 is the flow chart ten for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 14 is the flow chart 11 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 15 is the flow chart 12 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

Figure 16 is the flow chart 13 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention；

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

Specific embodiment

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

A kind of long-range ability exchange method that endpoint is presented is present embodiments provided, Fig. 1 is according to an embodiment of the present invention The flow chart of the ability exchange method of endpoint is presented in distal end, as shown in Figure 1, this method comprises the following steps S102 is to step S106。

Endpoint is remotely presented in step S102: the first and the second long-range present carries out ability interaction between endpoint, wherein ability Long-range presentation end-point capability collection is carried in interactive message, wherein long-range presentation endpoint is carried in the message of ability interaction Transmitting capacity collection.

Step S104: the first is remotely presented endpoint and is opened according to the result of ability interaction and the mode request information received The first long-range logical channel presented between endpoint and the second long-range presentation endpoint.

It can be implemented by the following two kinds mode as preferably embodiment, a step S102.

Mode one:

Which includes the following steps:

S1: described first long-range presentation endpoint sends the first ability collection interaction request to the described second long-range endpoint that presents, Wherein, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the first ability collection interaction request；

S3: the described first long-range endpoint that presents receives the second the second ability collection interaction request that remotely presentation endpoint is sent, Wherein, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the second ability collection interaction request；

S5: described first long-range presentation endpoint sends the request of the first logical channel to the described second long-range endpoint that presents, In, the described first long-range endpoint that presents selects in capability set interaction response according to the long-range endpoint that presents of described second received Ability, determine that the first logical channel is requested, wherein first logical channel request is long-range for requesting to open described first Endpoint is presented to the described second long-range forward direction logical channel presented between endpoint.

S7: described first long-range presentation endpoint receives described second long-range the second logical channel that endpoint transmission is presented and asks It asks, wherein second logical channel request is described second long-range endpoint is presented according to described first received to be remotely in What the ability that now endpoint selects in capability set interaction response determined, the second logical channel request is for requesting described in opening The second long-range endpoint that presents is to the described first long-range forward direction logical channel presented between endpoint.

Mode two:

Which includes the following steps:

S2: described first long-range presentation endpoint sends third capability set interaction request to the described second long-range endpoint that presents, Wherein, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the third capability set interaction request；

S4: described first long-range presentation endpoint sends the request of third logical channel to the described second long-range endpoint that presents, In, the described first long-range endpoint that presents selects in capability set interaction response according to the long-range endpoint that presents of described second received Ability, determine third logical channel request, wherein the third logical channel request opens described first for requesting The long-range endpoint that presents is to the described second long-range forward direction logical channel presented between endpoint.

S6: the described first long-range endpoint that presents receives the second the 4th capability set interaction request that remotely presentation endpoint is sent, Wherein, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 4th capability set interaction request；

S8: described first long-range presentation endpoint receives the described second long-range the 4th logical channel that endpoint transmission is presented and asks It asks, wherein the 4th logical channel request is described second long-range endpoint is presented according to described first received to be remotely in What the ability that now endpoint selects in capability set interaction response determined, the 4th logical channel request is for requesting described in opening The second long-range endpoint that presents is to the described first long-range forward direction logical channel presented between endpoint.

Mode three:

Which includes the following steps:

S10: described first long-range presentation endpoint sends the 5th capability set interaction request to the described second long-range endpoint that presents, Wherein, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 5th capability set interaction request；

S30: the described first long-range endpoint that presents receives the second the 6th capability set interaction request that remotely presentation endpoint is sent, Wherein, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 6th capability set interaction request；

S50: described first long-range presentation endpoint sends the request of the 5th logical channel to the described second long-range endpoint that presents, In, the 5th logical channel request is the described first long-range endpoint that presents according to the long-range presentation endpoint of described second received Transmitting capacity collection and first long-range the receptions ability that endpoint is presented determine that the 5th logical channel is requested for requesting The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint.

S70: described first long-range presentation endpoint receives the described second long-range the 6th logical channel that endpoint transmission is presented and asks It asks, wherein the 6th logical channel request is described second long-range endpoint is presented according to described first received to be remotely in What the transmitting capacity collection of existing endpoint and the second long-range reception ability that endpoint is presented determined, the 6th logical channel request is used The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint in request.

Mode four:

Which includes the following steps:

Step S20: the described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the 7th capability set interaction Request, wherein described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 7th capability set interaction request；

It is logical that step S40: described first long-range presentation endpoint receives the described second long-range the 7th logic that endpoint transmission is presented Road request, wherein the 7th logical channel request is that the described second long-range presentation endpoint is remote according to described first received What the transmitting capacity collection of Cheng Chengxian endpoint and the second long-range reception ability that endpoint is presented determined, the 7th logical channel is asked It asks for requesting to open the described second long-range endpoint that presents to the described first long-range reverse logic channel presented between endpoint.

Step S60: the described first long-range endpoint that presents receives the second the 8th capability set interaction that remotely presentation endpoint is sent Request, wherein described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 8th capability set interaction request；

Step S80: the described first long-range endpoint that presents is asked to the described second long-range the 8th logical channel of endpoint transmission that presents It asks, wherein the 8th logical channel request is described first long-range endpoint is presented according to described second received to be remotely in What the transmitting capacity collection of existing endpoint and the first long-range reception ability that endpoint is presented determined, the 8th logical channel request is used The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint in request.

Preferably, in the described first long-range endpoint that presents to the described second long-range presentation endpoint transmission the 7th capability set interaction After request, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to it is described The response message of the first ability collection interaction request.

Preferably, lead in the described first the 6th logic that remotely presentation endpoint receives that the described second long-range presentation endpoint is sent After road request, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to institute It states the 6th logical channel and requests corresponding response message；

The described second long-range the 7th logical channel request that endpoint is presented and sends is received in the described first long-range endpoint that presents Later, further includes: described first it is long-range present endpoint receive described second it is long-range be presented that endpoint sends correspond to the described 7th Logical channel requests corresponding response message.

After the described first long-range presentation endpoint sends the request of the 7th logical channel to the described second long-range presentation endpoint, Further include: the described first long-range endpoint that presents receives the described second long-range the 7th logical channel request that endpoint is presented and sends Corresponding response message.

Include capture parameter as preferably embodiment, a long-range endpoint transmitting capacity collection that presents, wherein capture ginseng Number includes general parameter, video parameter and/or audio frequency parameter.

Preferably, general parameter include media capture content, scene description, scene switching strategy, universal space information and/ Or universal coding information；The purposes of media capture content representation media capture；Scene description is for providing the description of overall scenario；

Preferably, scene switching strategy is used to indicate supported media switchover policy, wherein the plan of the media switching of support It slightly include place switchover policy and part switchover policy, wherein place switchover policy is used to indicate while switching whole captures, To guarantee that capture comes from the same endpoint place together, part switchover policy is used to indicate different captures can be when different Between switch, and from identical and/or different long-range presentation endpoint.

Preferably, universal space information includes scene areas and/or region calibration parameters, wherein scene areas parameter is used In the range for indicating overall scenario relevant to endpoint, region scale shows the type of the scale of spatial information parameter use.

Preferably, universal coding information includes whole maximum bandwidths, whole maximum pixel numbers per second and/or whole Maximum macroblock number per second, wherein whole maximum bandwidths are used to indicate the per second of whole code streams of the preset kind issued by terminal The bit rate of maximum quantity；Per second maximum picture of whole maximum pixel numbers per second for absolute codings whole in presentation code group Prime number；Whole maximum macroblock numbers per second indicates all videos code stream sent by endpoint maximum macroblock number per second.

Preferably, video parameter includes: video capture quantity, video capture spatial information and/or video capture coding letter Breath；Video capture quantity is used to indicate the quantity of video capture.

Preferably, video capture spatial information includes the point on capture region, capture point and/or capture line, wherein capture Region is used to indicate that the video to capture the locating spatial position in whole capturing scenes；Capture point is used to indicate and is capturing In scene, the position of video capture；The point on line is captured, the spatial position of second point on capture device optical axis is described, And first point is capture point.

Preferably, video captures encoded information, including maximum video bandwidth, maximum pixel number per second, maximum video are differentiated The width of rate, the height of maximum video resolution and/or maximum video frame rate；Wherein, maximum video bandwidth, is used to indicate list The maximum number bits per second of one Video coding；Maximum pixel number per second, the parameter be used for indicate single Video coding it is per second most Big pixel number；The width of maximum video resolution, the parameter are used to indicate the width of the maximum video resolution as unit of pixel Degree；The height of maximum video resolution, the parameter are used to indicate the height of the maximum video resolution as unit of pixel；It is maximum Video frame rate, the parameter show maximum video frame rate.

Preferably, audio frequency parameter includes audio capturing quantity, audio capturing spatial information and/or audio capturing coding letter Breath；Audio capturing quantity is used to indicate the quantity of audio capturing.

Preferably, audio capturing spatial information includes: capture region and/or capture point, wherein capture region is used for table Show audio capturing spatial position locating for whole capturing scenes；Capture point, for indicating in capturing scenes, audio capturing Position.

Preferably, audio capturing encoded information includes: voice-grade channel format and/or maximal audio bandwidth；Voice-grade channel lattice Formula 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.

It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.

In another embodiment, a kind of long-range ability interactive software that endpoint is presented is additionally provided, which is used for Execute technical solution described in above-described embodiment and preferred embodiment.

In another embodiment, a kind of storage medium is additionally provided, is stored in the storage medium and above-mentioned is remotely in The ability interactive device of existing endpoint, which includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..

The embodiment of the invention also provides a kind of long-range ability interactive devices that endpoint is presented, and are applied to first and remotely present Endpoint, the ability interactive device that endpoint is remotely presented can be used to implement above-mentioned long-range presentation endpoint ability exchange method and Preferred embodiment had carried out explanation, had repeated no more, below to relating in the ability interactive device of the long-range presentation endpoint And to module be illustrated.As used below, the software and/or hardware of predetermined function may be implemented in term " module " Combination.Although system and method described in following embodiment are preferably realized with software, hardware or software and hard The realization of the combination of part is also that may and be contemplated.

Fig. 2 is the structural block diagram for the ability interactive device that endpoint is presented in distal end according to an embodiment of the present invention, such as Fig. 2 institute Show, which includes: interactive module 22, and processing module 24 is below described in detail above structure.

Interactive module 22, is used for and the second long-range present carries out ability interaction between endpoint, wherein the ability interaction Long-range presentation end-point capability collection is carried in message, wherein the long-range presentation end-point capability collection is that the long-range endpoint that presents is sent Capability set；Processing module 24, for opening the logical channel between the second long-range presentation endpoint according to interaction results.

Fig. 3 is the preferred structural block diagram for the ability interactive device that endpoint is presented in distal end according to an embodiment of the present invention, under It is described in detail in face of preferred structure.

The interactive module 22 includes: the first sending module 220, for sending first to the described second long-range endpoint that presents Capability set interaction request, wherein the first of the described first long-range presentation endpoint is carried in the first ability collection interaction request Transmitting capacity collection；

First receiving module 221, for receiving the second long-range the second ability collection interaction request that endpoint is presented and sends, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the second ability collection interaction request；

Second sending module 222, for sending the request of the first logical channel to the described second long-range endpoint that presents, wherein The described first long-range endpoint that presents remotely is presented what endpoint selected in capability set interaction response according to described second received Ability determines that the first logical channel is requested, wherein the first logical channel request opens described first for request and is remotely in The forward direction logical channel between endpoint is remotely presented to described second for existing endpoint.

Second receiving module 223, for described second long-range the second logical channel request that endpoint is presented and sends, wherein The second logical channel request is that the described second long-range endpoint that presents exists according to the long-range endpoint that presents of described first received What the ability selected in capability set interaction response determined, the second logical channel request is for requesting opening described second long-range Endpoint is presented to the described first long-range forward direction logical channel presented between endpoint.

Preferably, interactive module 22 includes:

Third sending module 224, for sending third capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the third capability set interaction request；

4th sending module 225, for sending the request of third logical channel to the described second long-range endpoint that presents, wherein The described first long-range endpoint that presents remotely is presented what endpoint selected in capability set interaction response according to described second received Ability determines the third logical channel request, wherein the third logical channel request is for requesting opening described first remote The forward direction logical channel between endpoint is remotely presented to described second for Cheng Chengxian endpoint.

Third receiving module 226, for receiving the second long-range the 4th capability set interaction request that endpoint is presented and sends, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 4th capability set interaction request；

4th receiving module 227, for receiving the described second long-range the 4th logical channel request that endpoint is presented and sends, In, the 4th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What the ability selected in capability set interaction response determined, the 4th logical channel request is for requesting opening described second remote The forward direction logical channel between endpoint is remotely presented to described first for Cheng Chengxian endpoint.

The interactive module 22 includes:

5th sending module 228, for sending the 5th capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 5th capability set interaction request；

5th receiving module 229, for receiving the second long-range the 6th capability set interaction request that endpoint is presented and sends, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 6th capability set interaction request；

6th sending module 230, for sending the request of the 5th logical channel to the described second long-range endpoint that presents, wherein The 5th logical channel request is the described first long-range endpoint that presents according to the long-range presentation endpoint of described second received What transmitting capacity collection and the first long-range reception ability that endpoint is presented determined, the 5th logical channel request is beaten for requesting The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint.

6th receiving module 231, for receiving the described second long-range the 6th logical channel request that endpoint is presented and sends, In, the 6th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received Transmitting capacity collection and second long-range the receptions ability that endpoint is presented determine that the 6th logical channel is requested for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint.

The interactive module 22 includes:

7th sending module 232, for sending the 7th capability set interaction request to the described second long-range endpoint that presents, In, described first long-range the first transmitting capacity collection that endpoint is presented is carried in the 7th capability set interaction request；

7th receiving module 233, for receiving the described second long-range the 7th logical channel request that endpoint is presented and sends, In, the 7th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received Transmitting capacity collection and second long-range the receptions ability that endpoint is presented determine that the 7th logical channel is requested for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint；

8th receiving module 234, for receiving the second long-range the 8th capability set interaction request that endpoint is presented and sends, In, described second long-range the second transmitting capacity collection that endpoint is presented is carried in the 8th capability set interaction request；

8th sending module 235, for sending the request of the 8th logical channel to the described second long-range endpoint that presents, wherein The 8th logical channel request is the described first long-range endpoint that presents according to the long-range presentation endpoint of described second received What transmitting capacity collection and the first long-range reception ability that endpoint is presented determined, the 8th logical channel request is beaten for requesting The described first long-range endpoint that presents is opened to the described second long-range reverse logic channel presented between endpoint.

A kind of data flow is present embodiments provided, long-range that end-point capability collection is presented, end-point capability Ji Bao is presented in medium-long range Include: transmitting capacity collection, transmitting capacity collection include: capture parameter, and capture parameter includes: general parameter, video parameter and/or audio Parameter.

Preferably, general parameter include media capture content, scene description, scene switching strategy, universal space information and/ Or universal coding information；The purposes of media capture content representation media capture, the attribute include media capture visual angle, the table of media The role shown, media whether supplemented by flow content, media relational language；Scene description is used to provide the description of overall scenario, such as Verbal description.

It is long-range that end-point capability collection is presented further include: symmetric capability collection, symmetric capability collection as a preferably embodiment It include: capture rendering parameter, capture rendering parameter includes: general parameter, video parameter and/or audio frequency parameter.

Preferably, general parameter includes media capture rendering content, scene description, scene switching strategy, universal space letter Breath and/or universal coding information；Media capture rendering content indicates the purposes of media capture and/or rendering, which includes matchmaker Body capture visual angle, the role of the expression of media, media whether supplemented by flow content, media relational language；Scene description is for providing The description of overall scenario；

Preferably, scene switching strategy is used to indicate supported media switchover policy, wherein the plan of the media switching of support It slightly include place switchover policy and part switchover policy, wherein place switchover policy is used to indicate while switching whole captures Rendering, to guarantee that capture rendering comes from the same endpoint place together, part switchover policy is used to indicate different capture renderings It can switch in different times, and from identical and/or different long-range presentation endpoint.

Preferably, universal coding information includes whole maximum bandwidths, whole maximum pixel numbers per second and/or whole Maximum macroblock number per second, wherein whole maximum bandwidths are used to indicate the preset kind that capture rendering endpoint sends and/or receives Whole code streams maximum quantity per second bit rate；Whole maximum pixel numbers per second is sent and/or is connect by endpoint for indicating The maximum pixel number per second of whole absolute codings in the code set received；Whole maximum macroblock number expressions per second are sent by endpoint And/or all videos code stream maximum macroblock number per second received.

Preferably, video parameter includes: that video capture rendering quantity, video capture rendering spatial information and/or video are caught Obtain rendering encoded information；Video capture rendering quantity is used to indicate the quantity of video capture and/or rendering.

Preferably, video capture rendering spatial information includes capture rendering region, capture rendering point and/or capture rendering line On point, wherein capture rendering region for indicate the video capture rendering integrally capture and/or render scenes in locating for Spatial position；Capture rendering point, is used to indicate in capture and/or render scenes, the position of video capture and/or rendering； Point on capture rendering line, describes the spatial position of second point on capture and/or rendering apparatus optical axis, and first point To capture and/or rendering a little.

Preferably, video capture rendering encoded information, including maximum video bandwidth, maximum pixel number per second, maximum video The width of resolution ratio, the height of maximum video resolution and/or maximum video frame rate；Wherein, maximum video bandwidth, for referring to Show the maximum number bits per second of single Video coding；Maximum pixel number per second, the parameter is for indicating the every of single Video coding Second maximum pixel number；The width of maximum video resolution, the parameter are used to indicate the maximum video resolution as unit of pixel Width；The height of maximum video resolution, the parameter are used to indicate the height of the maximum video resolution as unit of pixel； Maximum video frame rate, the parameter show maximum video frame rate.

Preferably, audio frequency parameter includes audio capturing rendering quantity, audio capturing rendering spatial information and/or audio capturing Render encoded information；Audio capturing rendering quantity is used to indicate the quantity of audio capturing rendering.

Preferably, audio capturing rendering spatial information includes: capture rendering region and/or capture rendering point, wherein capture Region is rendered, for indicating audio capturing and/or the rendering spatial position locating for integrally capture and/or render scenes；Capture Point is rendered, for indicating the position of audio capturing and/or rendering in capture and/or render scenes.

Preferably, audio capturing rendering encoded information includes: voice-grade channel format and/or maximal audio bandwidth；Audio letter Road format is used to indicate the attribute of voice-grade channel；Maximal audio bandwidth is used to indicate and is related to the maximum per second of single audio frequency coding Bit number.

It include: that the long-range endpoint that presents receives capability set as preferably embodiment, a long-range presentation end-point capability collection, Comprising: rendering parameter, rendering parameter includes: general parameter, video parameter and/or audio frequency parameter.

Preferably, general parameter includes: media hype content, scene description, scene switching strategy, universal space information And/or universal coding information, wherein media hype content is used to indicate the attribute for the capture content that rendering endpoint needs, the category Property includes media capture visual angle, the role of the expression of media, media whether supplemented by flow content, media relational language；Scene description, For providing the description of overall scenario；Scene switching strategy is used to indicate supported media switchover policy,

Preferably, scene switching strategy includes place switchover policy and/or part switchover policy, wherein place switches plan Slightly switch whole renderings simultaneously, for guaranteeing that rendering comes from the same endpoint place together, part switchover policy is difference Rendering switch in different times, from identical and/or different endpoint.

Preferably, universal space information: including scene areas and/or region calibration parameters, wherein scene areas parameter is used In the kind for the scale that the range for indicating overall scenario relevant to endpoint, region scale are used for representation space information parameter Class.

Preferably, universal coding information includes whole maximum bandwidths, whole maximum pixel numbers per second and/or whole Maximum macroblock number per second, wherein whole maximum bandwidths indicate the every of whole code streams of the preset kind received by rendering endpoint The bit rate of second maximum quantity；The processing per second of whole absolute codings is most in whole maximum pixel number presentation code groups per second Big pixel number；Whole maximum macroblock numbers per second indicates all videos code stream received by endpoint maximum macroblock number per second.

Preferably, video parameter includes: Video Rendering quantity, Video Rendering spatial information and/or Video Rendering coding letter Breath, wherein Video Rendering quantity is used to indicate the quantity of Video Rendering；Video Rendering spatial information is for indicating the Video Rendering What is indicated is a part in whole render scenes.

Preferably, Video Rendering encoded information includes maximum video bandwidth, maximum pixel number per second, maximum video resolution Width, maximum video resolution height and/or maximum video frame rate；Wherein, maximum video bandwidth, the parameter are used for table Show the maximum number bits per second of single Video coding；Maximum pixel number per second, the parameter is for indicating the every of single Video coding Second maximum pixel number；The width of maximum video resolution, the parameter are used to indicate the maximum video resolution as unit of pixel Width；The height of maximum video resolution, the parameter are used to indicate the height of the maximum video resolution as unit of pixel； Maximum video frame rate, the parameter is for indicating maximum video frame rate.

Preferably, audio frequency parameter includes: audio rendering quantity, audio rendering spatial information and/or audio rendering coding letter Breath, wherein audio rendering quantity is used to indicate the quantity of audio rendering；Audio rendering spatial information is for indicating that audio rendering exists Locating spatial information in whole render scenes.

Preferably, audio rendering encoded information includes: voice-grade channel format and/or maximal audio bandwidth, wherein audio letter Road format, for indicating the attribute of voice-grade channel；Maximal audio bandwidth, for indicating the maximal bit per second of single audio frequency coding Number.

Preferred embodiment one

This preferred embodiment provides a kind of capability negotiation method, can guarantee the field that multi-path media between endpoint is remotely presented The negotiation of scene describing, coding/decoding capability and multiplex channel.

In the present embodiment, negotiation mode A is provided, Fig. 4 is the association that endpoint is presented in distal end according to an embodiment of the present invention The flow chart one of quotient's method, as shown in figure 4, negotiation mode includes that capability set interaction and logical channel open two parts.Including Following steps S401 and step S402:

Step S401: capability set interaction: ability interaction is carried out between two long-range presentation endpoints, carries long-range presentation endpoint Capability set.

Step S402: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

It is described below with reference to example.

Negotiation mode A-1 is provided in the present embodiment, and Fig. 5 is the association that endpoint is presented in distal end according to an embodiment of the present invention The flowchart 2 of quotient's method, as shown in Figure 5.The capability set carried in the negotiation mode capability set interaction message is reception ability Collection, receiving capability set includes that endpoint receives ability relevant parameter, includes the following steps S501 and step S502.

Step S501: capability set interaction: two long-range present carry out capability set interaction between endpoint, carry in message long-range Endpoint is presented and receives capability set parameter.

Step S502: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

Fig. 6 is the flow chart 3 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention, this kind as shown in Figure 6 Capability set interaction and logical channel in negotiation mode open process and may include steps of S601 to step S608.

Step S601: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The reception capability set of point A.

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

Step S603: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The reception capability set of point B；

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

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

Step S606: terminal A replys to terminal B and opens logical channel response message；

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

Step S608: terminal B replys to terminal A and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first pair of ability interaction message sending time exist First pair of logical channel is opened before message.According to this rule, the sequence that message described in Fig. 6 is sent can also be 1,3, 2,4,5,6,7,8, terminal A and B retransmit response message or 1,2,5,6,3,4,7,8, energy after first interacting with each other capability set After a part is completed in power interaction, the logical channel of side is first opened.

Wherein a terminal A is into the information interactive process of terminal B, can be primary as long as bottom package length allows Carry a plurality of message sent out from side endpoint, such as 1,2+3,4,5,6+7,8.Wherein 2+3 indicates that terminal B is sent to endpoint Mono- information of A, this time interaction in contain 2 and 3 two message.

Preferred embodiment two

This preferred embodiment provides negotiation mode A-2, the capability set carried in the negotiation mode capability set interaction message Reception capability set for symmetric capability collection, the symmetric capability set representations endpoint is consistent with transmitting capacity collection.Fig. 7 is according to the present invention The flow chart four of the machinery of consultation of endpoint is presented in the distal end of embodiment, as shown in fig. 7, the method comprising the steps of S701 and step S702。

Step S701: capability set interaction: two long-range present carry out capability set interaction between endpoint, carry in message long-range Endpoint symmetric capability collection parameter is presented.

Step S702: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

Fig. 8 is the flow chart five for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention, as shown in figure 8, should Capability set interaction and logical channel in kind negotiation mode open process and include the following steps S801 to step S808.

Step S801: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The symmetric capability collection of point A；

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

Step S804: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The symmetric capability collection of point B；

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

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

Step S806: terminal A replys to terminal B and opens logical channel response message；

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

Step S808: terminal B replys to terminal A and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first pair of ability interaction message sending time exist First pair of logical channel is opened before message.According to this rule, the sequence that message described in Fig. 8 is sent can also be 1,3, 2,4,5,6,7,8, terminal A and B retransmit response message or 1,2,5,6,3,4,7,8, energy after first interacting with each other capability set After a part is completed in power interaction, the logical channel of side is first opened.

Preferred embodiment three

This preferred embodiment provides negotiation mode A-3, the capability set carried in the negotiation mode capability set interaction message For transmitting capacity collection, transmitting capacity collection includes endpoint transmitting capacity relevant parameter.Fig. 9 is that distal end according to an embodiment of the present invention is in The flow chart six of the machinery of consultation of existing endpoint, as shown in figure 9, the method comprising the steps of S901 and step S902.

Step S901: capability set interaction: two long-range present carry out capability set interaction between endpoint, carry in message long-range Endpoint transmitting capacity collection parameter is presented.

Step S902: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

It is illustrated below with reference to example.

Example one:

It is the negotiation that endpoint is presented in distal end according to an embodiment of the present invention this example provides negotiation mode A-3-1, Figure 10 The flow chart seven of method, as shown in Figure 10, which return to the parameter after selection in ability interaction response message, including as follows Step S101 to step S108.

Step S101: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point A；

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

Step S103: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point B；

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

Step S105: the ability that terminal A selects in capability set interaction response according to terminal B sends to open to terminal B and patrol Collect channel request message.The forward direction logical channel of A to B is opened in dedicated tunnel attribute, request；

Step S106: terminal B replys to terminal A and opens logical channel response message；

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

Step S108: terminal A replys to terminal B and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first pair of ability interaction message sending time exist First pair of logical channel is opened before message.According to this rule, the sequence that message described in Figure 10 is sent can also be 1, 3,2,4,5,6,7,8, terminal A and B retransmit response message or 1,2,5,6,3,4,7,8 after first interacting with each other capability set, After a part is completed in ability interaction, the logical channel of side is first opened.

Example one:

This example provides negotiation mode A-3-2, and as shown in figure 11, which is not taken in capability set interaction response message Band selection parameter, what request was opened in opening logical channel request is reverse logic channel, includes the following steps S111 to step Rapid S118.

Step S111: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point A；

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

Step S113: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point B；

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

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

Step S116: terminal A replys to terminal B and opens logical channel response message；

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

Step S118: terminal B replys to terminal A and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first pair of ability interaction message sending time exist First pair of logical channel is opened before message.According to this rule, the sequence that message described in Figure 11 is sent can also be 1, 3,2,4,5,6,7,8, terminal A and B retransmit response message or 1,2,5,6,3,4,7,8 after first interacting with each other capability set, After a part is completed in ability interaction, the logical channel of side is first opened.

Preferred embodiment four

This preferred embodiment provides negotiation mode A-4, the capability set carried in the negotiation mode capability set interaction message To receive capability set and transmitting capacity collection.Receiving capability set includes that endpoint receives ability relevant parameter, and transmitting capacity collection includes end Point transmitting capacity relevant parameter.As shown in figure 12, include the following steps S1201 and step S1202.

Step S1201: capability set interaction: two long-range present carry out capability set interaction between endpoint, carry in message remote Cheng Chengxian endpoint receives capability set and transmitting capacity collection parameter.

Step S1202: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

It is illustrated below by example.

Example one

This example describes negotiation mode A-4-1, and as shown in figure 13, which carries simultaneously in capability set interaction Capability set and transmitting capacity collection are received, includes the following steps S1301 to step S1308.

Step S1301: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The reception capability set and transmitting capacity collection of point A；

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

Step S1303: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The reception capability set and transmitting capacity collection of point B；

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

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

Step S1306: terminal A replys to terminal B and opens logical channel response message；

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

Step S1308: terminal B replys to terminal A and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first pair of ability interaction message sending time exist First pair of logical channel is opened before message.According to this rule.The sequence that message described in Figure 13 is sent can also be 1, 3,2,4,5,6,7,8, terminal A and B first interact with each other the logical channel for opening both sides after capability set again or 1,2,5,6,3, 4,7,8, after a part is completed in ability interaction, first open the logical channel of side.

Example two

Figure 14 is the flow chart 11 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention, in the present embodiment In describe negotiation mode A-4-2, as shown in figure 14, receiving of the which in capability set interaction request message as receiving end Capability set will be relied on to be formed as the transmitting capacity collection of transmitting terminal, includes the following steps S1401 to step S1412.

S1401: the long-range terminal A that presents carries terminal A in message to terminal B initiating capacity collection interaction request is remotely presented Transmitting capacity collection；

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

S1403: transmitting capacity and oneself reception needs of the terminal B according to terminal A, the interaction of Xiang DuandianA initiating capacity Request message carries the reception capability set of terminal B in message；

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

S1405: the long-range terminal B that presents carries terminal B in message to terminal A initiating capacity collection interaction request is remotely presented Transmitting capacity collection；

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

S1407: transmitting capacity and oneself reception needs of the terminal A according to terminal B, the interaction of Xiang DuandianB initiating capacity Request message carries the reception capability set of terminal A in message；

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

S1409: terminal A sends to terminal B according to the reception capability set of terminal B and opens logical channel request message.It is specified The forward direction logical channel of A to B is opened in channel attributes, request；

S1410: terminal B replys to terminal A and opens logical channel response message；

S1411: terminal B sends to terminal A according to the reception capability set of terminal A and opens logical channel request message.It is specified The forward direction logical channel of B to A is opened in channel attributes, request；

S1412: terminal A replys to terminal B and opens logical channel response message.

Sequencing in one pair of them request and response message having time, first two pairs send and receive ability interaction message Sending time is before first pair of logical channel opens message.According to this rule, sequence that message described in Figure 14 is sent Can also be 1,3,5,7,2,4,6,8, terminal A and B first interact with each other retransmit after capability set response message or 1,2,3, 4,9,10,5,6,7,8,11,12, after a part is completed in ability interaction, first open the logical channel of side.

Wherein a terminal A is into the information interactive process of terminal B, can be primary as long as bottom package length allows Carry a plurality of message sent out from side endpoint, such as 1,2+3,4,5,6+7,8,9,10+11,12.Wherein 2+3 indicates endpoint B is sent to one information of terminal A, contains 2 and 3 two message in this time interaction.

Preferred embodiment five

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

Step S1501: capability set interaction: two long-range present carry out capability set interaction between endpoint, carry in message remote Cheng Chengxian endpoint receives capability set and transmitting capacity collection parameter.

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

Step S1503: logical channel is opened: being opened two long-range logical channels presented between endpoint, is specified after negotiating Channel attributes.

It is described in detail below by example.

Example one

Figure 16 is the flow chart 13 for the machinery of consultation that endpoint is presented in distal end according to an embodiment of the present invention, as shown in 16, This method comprises the following steps S1601 to step S1612.

Step S1601: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point A；

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

Step S1603: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point B；

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

Step S1605: the long-range terminal B that presents requests specific send to long-range presentation terminal A initiation mode request message Mode carries the transmission parameter of terminal A in mode；

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

Step S1607: the long-range terminal A that presents requests specific send to long-range presentation terminal B initiation mode request message Mode carries the transmission parameter of terminal B in mode；

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

Step S1609: terminal A disappears according to mode request process as a result, sending to terminal B and opening logical channel request Breath.The forward direction logical channel of A to B is opened in dedicated tunnel attribute, request；

Step S1610: terminal B replys to terminal A and opens logical channel response message；

Step S1611: terminal B disappears according to mode request process as a result, sending to terminal A and opening logical channel request Breath.The forward direction logical channel of B to A is opened in dedicated tunnel attribute, request；

Step S1612: terminal A replys to terminal B and opens logical channel response message.

Sequencing preferably in one pair of them request and response message having time, first pair of ability interaction message are sent Time, first pair of mode request message was before first pair of logical channel opens message before first pair of mode request message. According to this rule, the sequence that message described in Figure 16 is sent can also be 1,2,5,6,3,4,7,8,9,10,11,12, or Person 1,2,5,6,9,10,3,4,7,8,11,12.

Preferred embodiment five

This preferred embodiment provides a kind of long-range presentation end-point capability collection parameter, and Figure 17 is according to an embodiment of the present invention The long-range schematic diagram that end-point capability collection is presented is divided into transmitting capacity collection and receives capability set as shown in figure 17.In detail below Description.

It should be noted that list the only more important parameter of description in figure and in above-described embodiment, not generation The parameter of table whole.The parameter transmitted in ability interaction message is not really wanted to include following whole parameter, can according to need Practical combinations.

It mainly includes capture relevant parameter that transmitting capacity, which is concentrated, and capturing includes general parameter, video parameter in relevant parameter And audio frequency parameter.The other parameters that transmitting capacity is concentrated can be used to comprising coding standard in the related technology, such as H.263, H.264 etc..

Specifically, general parameter is used to describe scene relevant parameter and universal coding relevant parameter.Wherein scene correlation is joined Number includes scene description, scene switching strategy, scene areas, metric；Universal coding relevant parameter includes maximum bandwidth, often Second maximum macroblock number, coding standard etc..

Specifically, video parameter is used to describe the attribute of each independent video of composition capturing scenes.Video parameter is main Spatial information is captured including video, video captures encoded information, the quantity of video capture, video content attribute, video switching plan Slightly, the parameters such as video combined strategy.Wherein video capture spatial information includes capture region, and capture point captures a bit on line； Video capture encoded information includes the maximum video bandwidth of video capture, maximum macroblock number per second, and maximum video resolution is wide Degree, maximum video resolution height, maximum video frame rate.

Specifically, audio frequency parameter is used to describe the attribute of each independent audio of composition capturing scenes.Audio frequency parameter is main Including audio capturing spatial information, audio capturing encoded information, the parameters such as audio capturing quantity.Wherein audio capturing spatial information Including capture region, capture point captures a bit on line；Audio capturing encoded information includes the voice-grade channel lattice of the audio capturing Formula, maximal audio bandwidth.

Preferably, it receives capability set and transmitting capacity collection is corresponding, rendering relevant parameter is corresponding with capture relevant parameter.

Specifically, receiving mainly includes rendering relevant parameter in capability set, and rendering includes general parameter in relevant parameter, depending on Frequency parameter and audio frequency parameter.Receiving the other parameters in capability set can be used to comprising decoding standard, such as H.263, H.264 Deng.

Specifically, general parameter is used to describe scene relevant parameter and general decoding relevant parameter.Wherein scene correlation is joined Number includes scene description, scene switching strategy, scene areas, metric etc.；General decoding relevant parameter includes maximum bandwidth, Maximum macroblock number per second, decoding standard etc..

Specifically, video parameter is used to describe the attribute of each independent video of composition render scenes.Video parameter is main Including Video Rendering spatial information, Video Rendering decoded information, the quantity of Video Rendering, contents attribute, automatic switchover strategy, group Close the parameters such as strategy.Wherein Video Rendering spatial information includes rendering region, renders point, renders a bit on line；Video Rendering Decoded information includes the maximum video bandwidth of the Video Rendering, maximum macroblock number per second, maximum video resolution width, maximum view Frequency resolution height, maximum video frame rate.

Specifically, audio frequency parameter is used to describe the attribute of each independent audio of composition render scenes.Audio frequency parameter is main Spatial information is rendered including audio, audio renders decoded information, and audio renders the parameters such as quantity.Its sound intermediate frequency renders spatial information Including rendering region, point is rendered, a bit on line is rendered；Audio rendering decoded information includes the voice-grade channel lattice of audio rendering Formula, maximal audio bandwidth.

Preferably, the specified logical channel attribute of endpoint is remotely presented, mainly includes the media phase that the channel is used to transmit Information is closed, coding/decoding information etc. is multiplexed the logical channel if necessary, needs dedicated tunnel multiplexed information.

Preferred embodiment six

It is one of the preferred embodiment of the negotiation mode A-1 in preferred embodiment in the present embodiment, describes long-range Specific capability negotiation process between terminal A and long-range presentation terminal B is presented, wherein terminal A has 3 cameras, 3 displays Device, 1 microphone, 1 loudspeaker, terminal B have 3 cameras, 3 displays, 1 microphone, 1 loudspeaker.Terminal A Or/and terminal B is also possible to MCU device.This method comprises the following steps S1702 to step S1716.

Step S1702: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The reception capability set of point A.

The video parameter received in the rendering relevant parameter that capability set includes is respectively as follows:

The Video Rendering spatial information that rendering is identified as VR0 is expressed as a left side, and video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M；

During the Video Rendering spatial information that rendering is identified as VR1 is expressed as, video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M；

The Video Rendering spatial information that rendering is identified as VR2 is expressed as the right side, and video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M；

The Video Rendering spatial information that rendering is identified as VR3 is expressed as a left side, and video content attribute is most loud spokesman, depending on Maximum video bandwidth in frequency rendering decoded information is 4M, and automatic switchover attribute is YES；

During the Video Rendering spatial information that rendering is identified as VR4 is expressed as, video content attribute is panoramic video, video wash with watercolours Contaminating the maximum video bandwidth in decoded information is 4M；

The Video Rendering spatial information that rendering is identified as VR5 is expressed as the right side, and video content attribute is VIP, Video Rendering solution Maximum video bandwidth in code information is 4M；

Receive the audio frequency parameter in the rendering relevant parameter that capability set includes are as follows:

The audio content that rendering is identified as AR0 is main audio, and it is 128K, sound that audio, which renders the maximum bandwidth in decoded information, Frequency channel format is stereo；

Receive the general parameter in the rendering relevant parameter that capability set includes are as follows:

The scene that scene identity is 1 is made of VR0, VR1, VR2, and scene description is rendering left, center, right video, encoding and decoding Standard is H.264 maximum bandwidth 12M；

The scene that scene identity is 2 is made of VR3, VR4, VR5, scene description be render most loud spokesman, panorama, VIP video, encoding and decoding standard are H.264 maximum bandwidth 12M；

The scene that scene identity is 3 is made of AR0, and scene description is rendering main audio, and encoding and decoding standard is G.711, most Big bandwidth is 128K.

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

Step S1706: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The reception capability set of point B；

The scene that scene identity is 1 is made of VR0, VR1, VR2, and scene description is rendering left, center, right video, encoding and decoding Standard is H.264 maximum bandwidth 12M.

The scene that scene identity is 2 is made of AR0, and scene description is rendering main audio, and encoding and decoding standard is G.711, most Big bandwidth is 128K.

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

Step S1710: terminal B determines that sending endpoint A connects in conjunction with the transmitting capacity of oneself according to the reception ability of terminal A Receive the scene 1 and scene 3 in capability set.Terminal B sends to terminal A and opens logical channel request message, and dedicated tunnel attribute is asked Seek the forward direction logical channel for opening B to A.Specified logical channel attribute is respectively as follows:

3 road RTP video flowings are transmitted in video logic channel all the way, and audio logical channel transmits 1 road RTP audio stream all the way.Depending on Frequency channel media-related information is to send VR0, VR1, VR2 video；Code-related information is to use H.264 to encode, maximum bandwidth For 12M；Multiplexed information is that the value of the corresponding RTP extension mark of VR0, VR1, VR2 is 0,1,2, same for distinguishing Different rtp streaming in logical channel.Voice-grade channel media-related information be send AR0 audio, code-related information be G.711, Maximum bandwidth is 128K.

Step S1712: terminal A replys to terminal B and opens logical channel response message；

Step S1714: terminal A determines that sending endpoint B connects in conjunction with the transmitting capacity of oneself according to the reception ability of terminal B Receive the scene 1 and scene 2 in capability set.Terminal A sends to terminal B and opens logical channel request message, and dedicated tunnel attribute is asked Seek the forward direction logical channel for opening A to B.Specified logical channel attribute is respectively as follows:

Step S1716: terminal B replys to terminal A and opens logical channel response message.

Preferred embodiment seven

This preferred embodiment is one of the preferred embodiment of preferred embodiment negotiation mode A-1, describes remotely to present Specific capability negotiation process between terminal A and long-range presentation terminal B.Terminal A and terminal B are telepresence video meeting end Point, terminal A have 3 cameras, 3 displays, 1 microphone, 1 loudspeaker, terminal B have 1 camera, 1 it is aobvious Show device, 1 microphone, 1 loudspeaker.Terminal A or/and terminal B are also possible to MCU device.This method comprises the following steps S1802 to step S1816.

Step S1802: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The reception capability set of point A.

Preferably, the video parameter received in the rendering relevant parameter that capability set includes is respectively as follows:

The Video Rendering spatial information that rendering is identified as VR0 is expressed as a left side, and video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M.

During the Video Rendering spatial information that rendering is identified as VR1 is expressed as, video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M.

The Video Rendering spatial information that rendering is identified as VR2 is expressed as the right side, and video content attribute is main video, Video Rendering Maximum video bandwidth in decoded information is 4M.

During the Video Rendering spatial information that rendering is identified as VR3 is expressed as, video content attribute is panoramic video, video wash with watercolours Contaminating the maximum video bandwidth in decoded information is 4M.

Preferably, the audio frequency parameter in the rendering relevant parameter that capability set includes is received are as follows:

The audio content that rendering is identified as AR0 is main audio, and it is 128K, sound that audio, which renders the maximum bandwidth in decoded information, Frequency channel format is stereo.

Scene identity be 2 scene be made of VR3, scene description be rendering panoramic video, encoding and decoding standard be H.264, 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 carries end in message to terminal A initiating capacity collection interaction request is remotely presented The reception capability set of point B.

Rendering is identified as the scene description of VR0 as rendering panoramic video, and encoding and decoding standard is H.264 maximum bandwidth 4M.

Scene identity be 1 scene be made of VR0, scene description be rendering panoramic video, encoding and decoding standard be H.264, Maximum bandwidth is 4M.

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

Step S1810: terminal B determines that sending endpoint A connects in conjunction with the transmitting capacity of oneself according to the reception ability of terminal A Receive the scene 2 and scene 3 in capability set.Terminal B sends to terminal A and opens logical channel request message, and dedicated tunnel attribute is asked Seek the forward direction logical channel for opening B to A.Specified logical channel attribute is respectively as follows:

1 road RTP video flowing is transmitted in video logic channel all the way, and audio logical channel transmits 1 road RTP audio stream all the way.Depending on Frequency channel media-related information is to send VR3 video；Code-related information is to use H.264 to encode, maximum bandwidth 4M；Without multiple Use information.Voice-grade channel media-related information is to send AR0 audio, and code-related information is G.711 maximum bandwidth 128K.

Step S1812: terminal A replys to terminal B and opens logical channel response message.

Step S1814: terminal A determines that sending endpoint B connects in conjunction with the transmitting capacity of oneself according to the reception ability of terminal B Receive the scene 1 and scene 2 in capability set.Terminal A sends to terminal B and opens logical channel request message, and dedicated tunnel attribute is asked Seek the forward direction logical channel for opening A to B.Specified logical channel attribute is respectively as follows:

1 road RTP video flowing is transmitted in video logic channel all the way, and audio logical channel transmits 1 road RTP audio stream all the way.Depending on Frequency channel media-related information is to send VR0 video；Code-related information is to use H.264 to encode, maximum bandwidth 12M；Nothing Multiplexed information.Voice-grade channel media-related information is to send AR0 audio, G.711 code-related information is that maximum bandwidth is 128K。

Step S1816: terminal B replys to terminal A and opens logical channel response message.

Preferred embodiment eight

This preferred embodiment is one of the preferred embodiment of negotiation mode A-2, describes remotely to present terminal A and long-range Specific capability negotiation process between terminal B is presented.Terminal A and terminal B are telepresence video conferencing endpoints, and terminal A has 3 A camera, 3 displays, 1 microphone, 1 loudspeaker, terminal B have 3 cameras, 3 displays, 1 Mike Wind, 1 loudspeaker.Terminal A or/and terminal B are also possible to MCU device.This preferred embodiment includes the following steps S1902 to step Rapid S1916.

Step S1902: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The symmetric capability collection of point A；

Video parameter in the rendering that symmetric capability collection includes/capture relevant parameter is respectively as follows:

The Video Rendering spatial information that rendering/capture is identified as VR0 is expressed as a left side, and video content attribute is main video, depending on Maximum video bandwidth in frequency rendering/capture coding/decoding information is 4M；

During the Video Rendering spatial information that rendering/capture is identified as VR1 is expressed as, video content attribute is main video, depending on Maximum video bandwidth in frequency rendering/capture coding/decoding information is 4M；

The Video Rendering spatial information that rendering/capture is identified as VR2 is expressed as the right side, and video content attribute is main video, depending on Maximum video bandwidth in frequency rendering/capture coding/decoding information is 4M；

The audio content that rendering/capture is identified as AR0 is main audio, and audio renders/capture the maximum in coding/decoding information Bandwidth is 128K, and voice-grade channel format is stereo；

General parameter in the rendering that symmetric capability collection includes/capture relevant parameter are as follows:

Scene identity be 2 scene be made of VR3, scene description be rendering panoramic video, encoding and decoding standard be H.264, 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 carries end in message to terminal A initiating capacity collection interaction request is remotely presented The symmetric capability collection of point B；

Video Rendering/capture spatial information that rendering/capture is identified as VR0 is expressed as a left side, and video content attribute is main view Frequently, the maximum video bandwidth in Video Rendering/capture coding/decoding information is 4M；

During Video Rendering/capture spatial information that rendering/capture is identified as VR1 is expressed as, video content attribute is main view Frequently, the maximum video bandwidth in Video Rendering/capture coding/decoding information is 4M；

Video Rendering/capture spatial information that rendering/capture is identified as VR2 is expressed as the right side, and video content attribute is main view Frequently, the maximum video bandwidth in Video Rendering/capture coding/decoding information is 4M；

Receive the general parameter in rendering/capture relevant parameter that capability set includes are as follows:

The scene that scene identity is 1 is made of VR0, VR1, VR2, and scene description is rendering/capture left, center, right video, is compiled Decoding standard is H.264 maximum bandwidth 12M；

The scene that scene identity is 2 is made of AR0, and scene description is rendering/capture main audio, and encoding and decoding standard is G.711, maximum bandwidth 128K.

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

Step S1910: terminal B determines that sending endpoint A receives energy in conjunction with the ability of oneself according to the symmetric capability of terminal A The scene 1 and scene 3 that power is concentrated.Terminal B sends to terminal A and opens logical channel request message.Dedicated tunnel attribute, request are beaten Open the forward direction logical channel of B to A.Specified logical channel attribute is respectively as follows:

Step S1912: terminal A replys to terminal B and opens logical channel response message；

Step S1914: terminal A determines that sending endpoint B connects in conjunction with the transmitting capacity of oneself according to the symmetric capability of terminal B Receive the scene 1 and scene 2 in capability set.Terminal A sends to terminal B and opens logical channel request message, and dedicated tunnel attribute is asked Seek the forward direction logical channel for opening A to B.Specified logical channel attribute is respectively as follows:

Step S1916: terminal B replys to terminal A and opens logical channel response message.

Preferred embodiment nine

This preferred embodiment is one of the most preferred embodiment of negotiation mode A-3-1, describes remotely to present terminal A and remote Specific capability negotiation process between Cheng Chengxian terminal B.Terminal A and terminal B are telepresence video conferencing endpoints, terminal A tool Standby 3 cameras, 3 displays, 1 microphone, 1 loudspeaker, terminal B have 1 camera, 1 display, 1 Microphone, 1 loudspeaker.Terminal A or/and terminal B are also possible to MCU device.The preferred embodiment includes the following steps S2002 To step S2016.

Step S2002: the long-range terminal A that presents carries end in message to terminal B initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point A；

The video parameter in capture relevant parameter that transmitting capacity collection includes is respectively as follows:

The video capture spatial information that capture is identified as VR0 is expressed as a left side, and video content attribute is main video, video capture Maximum video bandwidth in encoded information is 4M；

During the video capture spatial information that capture is identified as VR1 is expressed as, video content attribute is main video, video capture Maximum video bandwidth in encoded information is 4M；

The video capture spatial information that capture is identified as VR2 is expressed as the right side, and video content attribute is main video, video capture Maximum video bandwidth in encoded information is 4M；

The video content attribute that capture is identified as VR3 is panorama, and the maximum video bandwidth in video capture encoded information is 4M；

Receive the audio frequency parameter in the capture relevant parameter that capability set includes are as follows:

The audio content that capture is identified as AR0 is main audio, and the maximum bandwidth in audio capturing encoded information is 128K, sound Frequency channel format is stereo；

The general parameter in capture relevant parameter that transmitting capacity collection includes are as follows:

The scene that scene identity is 1 is made of VR0, VR1, VR2, and scene description is capture left, center, right video, compiles coding Standard is H.264 maximum bandwidth 12M；

Scene identity be 2 scene be made of VR3, scene description be capture panoramic video, compile coding standard be H.264, Maximum bandwidth is 4M；

The scene that scene identity is 3 is made of AR0, and scene description is capture main audio, and compiling coding standard is G.711, most Big bandwidth is 128K.

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

Step S2006: the long-range terminal B that presents carries end in message to terminal A initiating capacity collection interaction request is remotely presented The transmitting capacity collection of point B；

Capture is identified as the scene description of VR0 as capture panoramic video, and coding standard is H.264 maximum bandwidth 4M；

The scene that scene identity is 1 is made of VR0, and scene description is capture panoramic video, and coding standard is H.264, most Big bandwidth is 4M；

The scene that scene identity is 2 is made of AR0, and scene description is capture main audio, and coding standard is G.711 maximum Bandwidth is 128K.

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

Step S2010: the ability that terminal A selects in capability set interaction response according to terminal B sends to terminal B and opens Logical channel request message.The forward direction logical channel of A to B is opened in dedicated tunnel attribute, request.Specified channel attributes are as follows:

Step S2012: terminal B replys to terminal A and opens logical channel response message；

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

Step S2016: terminal A replys to terminal B and opens logical channel response message.

It should be noted that the corresponding embodiment of other methods is similar with above-described embodiment.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of long-range ability exchange method that endpoint is presented, characterized by comprising:

First long-range present carries out ability interaction between endpoint and the second long-range presentation endpoint, wherein the ability interaction disappears Long-range presentation end-point capability collection is carried in breath, the long-range presentation end-point capability collection includes: long-range presentation endpoint transmitting capacity Collection；

Described first long-range be presented endpoint and open the described first long-range endpoint and described of presenting according to the result of ability interaction The second long-range logical channel presented between endpoint；

Wherein, the transmitting capacity collection includes: capture parameter, the capture parameter include: general parameter, video parameter and/or Audio frequency parameter, the general parameter include media capture content, scene description, scene switching strategy, universal space information and/or Universal coding information；The purposes of the media capture content representation media capture；The scene description is for providing overall scenario Description.

2. the method according to claim 1, wherein first it is long-range present endpoint and second it is long-range present endpoint it Between carry out ability interaction include:

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the first ability collection interaction request, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in the first ability collection interaction request；

The described first long-range endpoint that presents receives the second the second ability collection interaction request that remotely presentation endpoint is sent, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the second ability collection interaction request；

The described first long-range endpoint that presents is to described second long-range presentation endpoint transmission the first logical channel request, wherein described The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the first long-range endpoint that presents, Determine that the first logical channel is requested, wherein the first logical channel request is for requesting opening described first is long-range end is presented The forward direction logical channel between endpoint is remotely presented to described second for point；

The described first long-range endpoint that presents receives described second long-range the second logical channel request that endpoint is presented and sends, wherein The second logical channel request is that the described second long-range endpoint that presents exists according to the long-range endpoint that presents of described first received What the ability selected in capability set interaction response determined, the second logical channel request is for requesting opening described second long-range Endpoint is presented to the described first long-range forward direction logical channel presented between endpoint.

3. the method according to claim 1, wherein first it is long-range present endpoint and second it is long-range present endpoint it Between carry out ability interaction include:

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission third capability set interaction request, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in third capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission third logical channel request, wherein described The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the first long-range endpoint that presents, Determine the third logical channel request, wherein the third logical channel request opens described first for request and is remotely in The forward direction logical channel between endpoint is remotely presented to described second for existing endpoint；

The described first long-range endpoint that presents receives the second the 4th capability set interaction request that remotely presentation endpoint is sent, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 4th capability set interaction request；

The described first long-range endpoint that presents receives the described second long-range the 4th logical channel request that endpoint is presented and sends, wherein The 4th logical channel request is that the described second long-range endpoint that presents exists according to the long-range endpoint that presents of described first received What the ability selected in capability set interaction response determined, the 4th logical channel request is for requesting opening described second long-range Endpoint is presented to the described first long-range forward direction logical channel presented between endpoint.

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

After the described first long-range presentation endpoint sends the first ability collection interaction request to the described second long-range presentation endpoint, also Include: described first it is long-range endpoint be presented receive described second long-range the first ability collection that corresponds to that endpoint is sent be presented hand over The response message mutually requested；Wherein, carrying described second in the response message of the first ability collection interaction request is remotely in Existing endpoint concentrates the parameter of selection from first transmitting capacity.

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

After the described first long-range presentation endpoint sends third capability set interaction request to the described second long-range presentation endpoint, also Include: described first it is long-range endpoint be presented receive described second long-range the third capability set that corresponds to that endpoint is sent be presented hand over The response message mutually requested；Wherein, carrying described second in the response message of the third capability set interaction request is remotely in Existing endpoint concentrates the parameter of selection from first transmitting capacity.

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

After the described first long-range presentation endpoint receives the second the second ability collection interaction request that remotely presentation endpoint is sent, go back Include: described first it is long-range present endpoint to described second it is long-range endpoint is presented and sends correspond to the second ability collection interaction and ask The response message asked；Wherein, the described first long-range presentation end is carried in the response message of the second ability collection interaction request Point concentrates the parameter of selection from second transmitting capacity.

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

After the described first long-range presentation endpoint receives the second the 4th capability set interaction request that remotely presentation endpoint is sent, go back Include: described first it is long-range present endpoint to described second it is long-range endpoint is presented and sends correspond to the 4th capability set interaction and ask The response message asked；Wherein, the described first long-range presentation end is carried in the response message of the 4th capability set interaction request Point concentrates the parameter of selection from second transmitting capacity.

8. according to the method described in claim 2, it is characterized in that,

After the described first long-range presentation endpoint receives described second long-range the second logical channel request that endpoint transmission is presented, Further include: the described first long-range presentation endpoint, which corresponds to second logical channel to the described second long-range presentation endpoint transmission, asks Seek corresponding response message.

9. according to the method described in claim 3, it is characterized in that,

After the described first long-range presentation endpoint receives the described second long-range the 4th logical channel request that endpoint transmission is presented, Further include: the described first long-range presentation endpoint, which corresponds to the 4th logical channel to the described second long-range presentation endpoint transmission, asks Seek corresponding response message.

10. according to the method described in claim 2, it is characterized in that,

After the described first long-range presentation endpoint sends the request of the first logical channel to the described second long-range presentation endpoint, also wrap Include: the described first long-range presentation endpoint receives the described second long-range first logical channel request correspondence that endpoint is presented and sends Response message.

11. according to the method described in claim 3, it is characterized in that,

After the described first long-range presentation endpoint sends the request of third logical channel to the described second long-range presentation endpoint, also wrap Include: the described first long-range presentation endpoint receives the described second long-range third logical channel request correspondence that endpoint is presented and sends Response message.

12. the method according to claim 1, wherein endpoint is remotely presented in the first long-range endpoint and second that presents Between carry out ability interaction include:

The described first long-range endpoint that presents is to the described second long-range presentation endpoint the 5th capability set interaction request of transmission, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in the 5th capability set interaction request；

The described first long-range endpoint that presents receives the second the 6th capability set interaction request that remotely presentation endpoint is sent, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 6th capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the 5th logical channel request, wherein described The request of 5th logical channel is the described first long-range transmission for endpoint being presented, endpoint being remotely presented according to described second received What capability set and the first long-range reception ability that endpoint is presented determined, the 5th logical channel request opens institute for requesting The first long-range endpoint that presents is stated to the described second long-range reverse logic channel presented between endpoint；

The described first long-range endpoint that presents receives the described second long-range the 6th logical channel request that endpoint is presented and sends, wherein The 6th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What transmitting capacity collection and the second long-range reception ability that endpoint is presented determined, the 6th logical channel request is beaten for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint.

13. the method according to claim 1, wherein endpoint is remotely presented in the first long-range endpoint and second that presents Between carry out ability interaction include:

The described first long-range endpoint that presents is to the described second long-range presentation endpoint the 7th capability set interaction request of transmission, wherein institute It states and carries described first long-range the first transmitting capacity collection that endpoint is presented in the 7th capability set interaction request；

The described first long-range endpoint that presents receives the described second long-range the 7th logical channel request that endpoint is presented and sends, wherein The 7th logical channel request is the described second long-range endpoint that presents according to the long-range presentation endpoint of described first received What transmitting capacity collection and the second long-range reception ability that endpoint is presented determined, the 7th logical channel request is beaten for requesting The described second long-range endpoint that presents is opened to the described first long-range reverse logic channel presented between endpoint；

The described first long-range endpoint that presents receives the second the 8th capability set interaction request that remotely presentation endpoint is sent, wherein institute It states and carries described second long-range the second transmitting capacity collection that endpoint is presented in the 8th capability set interaction request；

The described first long-range endpoint that presents is to the described second long-range presentation endpoint transmission the 8th logical channel request, wherein described The request of 8th logical channel is the described first long-range transmission for endpoint being presented, endpoint being remotely presented according to described second received What capability set and the first long-range reception ability that endpoint is presented determined, the 8th logical channel request opens institute for requesting The first long-range endpoint that presents is stated to the described second long-range reverse logic channel presented between endpoint.

14. according to the method for claim 12, which is characterized in that

After the described first long-range presentation endpoint sends the 5th capability set interaction request to the described second long-range presentation endpoint, also Include: described first it is long-range endpoint be presented receive described second long-range the 5th capability set that corresponds to that endpoint is sent be presented hand over The response message mutually requested.

15. according to the method for claim 13, which is characterized in that

After the described first long-range presentation endpoint sends the 7th capability set interaction request to the described second long-range presentation endpoint, also Include: described first it is long-range endpoint be presented receive described second long-range the 7th capability set that corresponds to that endpoint is sent be presented hand over The response message mutually requested.

16. according to the method for claim 12, which is characterized in that

After the described first long-range presentation endpoint receives the second the 6th capability set interaction request that remotely presentation endpoint is sent, go back Include: described first it is long-range present endpoint to described second it is long-range endpoint is presented and sends correspond to the 6th capability set interaction and ask The response message asked.

17. according to the method for claim 13, which is characterized in that

After the described first long-range presentation endpoint receives the second the 8th capability set interaction request that remotely presentation endpoint is sent, go back Include: described first it is long-range present endpoint to described second it is long-range endpoint is presented and sends correspond to the 8th capability set interaction and ask The response message asked.

18. according to the method for claim 12, which is characterized in that

After the described first long-range presentation endpoint receives the described second long-range the 6th logical channel request that endpoint transmission is presented, Further include: the described first long-range presentation endpoint, which corresponds to the 6th logical channel to the described second long-range presentation endpoint transmission, asks Seek corresponding response message.

19. according to the method for claim 13, which is characterized in that

After the described first long-range presentation endpoint receives the described second long-range the 7th logical channel request that endpoint transmission is presented, Further include: the described first long-range presentation endpoint corresponds to the 7th logical channel to what the described second long-range presentation endpoint was sent Request corresponding response message.

20. according to the method for claim 12, which is characterized in that

After the described first long-range presentation endpoint sends the request of the 5th logical channel to the described second long-range presentation endpoint, also wrap Include: the described first long-range presentation endpoint receives the described second long-range the 5th logical channel request correspondence that endpoint is presented and sends Response message.

21. according to the method for claim 13, which is characterized in that

After the described first long-range presentation endpoint sends the request of the 8th logical channel to the described second long-range presentation endpoint, also wrap Include: the described first long-range presentation endpoint receives the described second long-range the 8th logical channel request correspondence that endpoint is presented and sends Response message.

22. the method according to claim 1, wherein the scene switching strategy is used to indicate supported media Switchover policy, wherein the strategy of the media switching of the support includes place switchover policy and part switchover policy, wherein institute It states place switchover policy and is used to indicate while switching whole captures, to guarantee that capture comes from the same endpoint place, institute together Stating part switchover policy and being used to indicate different captures to switch in different times, and from identical and/or different It is long-range that endpoint is presented.

23. the method according to claim 1, wherein the universal space information includes scene areas and/or area Domain calibration parameters, wherein the scene areas parameter is used to indicate the range of overall scenario relevant to endpoint, and the region is carved Degree shows the type of the scale of spatial information parameter use.

24. the method according to claim 1, wherein the universal coding information include whole maximum bandwidths, The maximum macroblock number per second of whole maximum pixel numbers per second and/or whole, wherein the whole maximum bandwidths be used to indicate by The bit rate of the maximum quantity per second of the whole code streams for the preset kind that terminal issues；Whole maximum pixel number per second is used The maximum pixel number per second of whole absolute codings in presentation code group；Whole maximum macroblock number per second is indicated by endpoint The all videos code stream of transmission maximum macroblock number per second.

25. the method according to claim 1, wherein the video parameter includes: video capture quantity, video It captures spatial information and/or video captures encoded information；The video capture quantity is used to indicate the quantity of video capture.

26. according to the method for claim 25, which is characterized in that video capture spatial information include capture region, Point on capture point and/or capture line, wherein the capture region is for indicating video capture in whole capturing scenes Locating spatial position；The capture point, is used to indicate in capturing scenes, the position of video capture；On the capture line Point describes the spatial position of second point on capture device optical axis, and first point is capture point.

27. according to the method for claim 25, which is characterized in that the video captures encoded information, including 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, the maximum video bandwidth, is used to indicate the maximum number bits per second of single Video coding；The maximum per second Pixel number, the parameter are used to indicate the maximum pixel number per second of single Video coding；The width of the maximum video resolution, should Parameter is used to indicate the width of the maximum video resolution as unit of pixel；The height of the maximum video resolution, the ginseng Number is for indicating the height of the maximum video resolution as unit of pixel；The maximum video frame rate, the parameter are shown Maximum video frame rate.

28. the method according to claim 1, wherein the audio frequency parameter includes that audio capturing quantity, audio are caught Obtain spatial information and/or audio capturing encoded information；The audio capturing quantity is used to indicate the quantity of audio capturing.

29. according to the method for claim 28, which is characterized in that the audio capturing spatial information includes: capture region And/or capture point, wherein the capture region, for indicating audio capturing spatial position locating for whole capturing scenes；Institute Capture point is stated, for indicating the position of audio capturing in capturing scenes.

30. according to the method for claim 28, which is characterized in that the audio capturing encoded information includes: voice-grade channel Format and/or maximal audio bandwidth；The voice-grade channel format, is used to indicate the attribute of voice-grade channel；The maximal audio band Width is used to indicate the maximum number bits per second of single audio frequency coding.

31. a kind of long-range ability interactive device that endpoint is presented, is applied to first and endpoint is remotely presented, characterized by comprising:

Interactive module, is used for and the second long-range present carries out ability interaction between endpoint, wherein in the message of the ability interaction Carry long-range presentation end-point capability collection, wherein the long-range presentation end-point capability collection is long-range presentation endpoint transmitting capacity collection；

Processing module, for opening the logical channel between the second long-range presentation endpoint according to interaction results；

32. device according to claim 31, which is characterized in that the interactive module includes:

First sending module, for sending the first ability collection interaction request to the described second long-range endpoint that presents, wherein described the Described first long-range the first transmitting capacity collection that endpoint is presented is carried in one capability set interaction request；

First receiving module, for receiving the second long-range the second ability collection interaction request that endpoint is presented and sends, wherein described the Described second long-range the second transmitting capacity collection that endpoint is presented is carried in two capability set interaction requests；

Second sending module, for sending the request of the first logical channel to the described second long-range endpoint that presents, wherein described first The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the long-range endpoint that presents, and determines First logical channel request, wherein the first logical channel request is for requesting opening described first is long-range endpoint is presented extremely The described second long-range forward direction logical channel presented between endpoint；

Second receiving module, for described second long-range the second logical channel request that endpoint is presented and sends, wherein described second Logical channel request is that the described second long-range presentation endpoint is handed over according to the long-range presentation endpoint of described first received in capability set What the ability mutually selected in response determined, second logical channel is requested for requesting to open the described second long-range presentation endpoint To the described first long-range forward direction logical channel presented between endpoint.

33. device according to claim 31, which is characterized in that the interactive module includes:

Third sending module, for sending third capability set interaction request to the described second long-range endpoint that presents, wherein described the Described first long-range the first transmitting capacity collection that endpoint is presented is carried in three capability set interaction requests；

4th sending module, for sending the request of third logical channel to the described second long-range endpoint that presents, wherein described first The ability that endpoint selects in capability set interaction response is remotely presented according to described second received for the long-range endpoint that presents, and determines The third logical channel request, wherein the third logical channel request is for requesting opening described first is long-range end is presented The forward direction logical channel between endpoint is remotely presented to described second for point；

Third receiving module, for receiving the second long-range the 4th capability set interaction request that endpoint is presented and sends, wherein described the Described second long-range the second transmitting capacity collection that endpoint is presented is carried in four capability set interaction requests；

4th receiving module, for receiving the described second long-range the 4th logical channel request that endpoint is presented and sends, wherein described The request of 4th logical channel is that endpoint is remotely presented according to described first received in ability for the described second long-range endpoint that presents What the ability selected in collection interaction response determined, the 4th logical channel is requested for requesting to open the described second long-range presentation The forward direction logical channel between endpoint is remotely presented to described first for endpoint.

34. device according to claim 31, which is characterized in that the interactive module includes:

5th sending module, for sending the 5th capability set interaction request to the described second long-range endpoint that presents, wherein described the Described first long-range the first transmitting capacity collection that endpoint is presented is carried in five capability set interaction requests；

5th receiving module, for receiving the second long-range the 6th capability set interaction request that endpoint is presented and sends, wherein described the Described second long-range the second transmitting capacity collection that endpoint is presented is carried in six capability set interaction requests；

6th sending module, for sending the request of the 5th logical channel to the described second long-range endpoint that presents, wherein the described 5th Logical channel request is the described first long-range transmitting capacity for endpoint being presented, endpoint being remotely presented according to described second received What collection and the first long-range receptions ability that endpoint is presented determined, the 5th logical channel request is for requesting opening described the The one long-range endpoint that presents is to the described second long-range reverse logic channel presented between endpoint；

6th receiving module, for receiving the described second long-range the 6th logical channel request that endpoint is presented and sends, wherein described The request of 6th logical channel is the described second long-range transmission for endpoint being presented, endpoint being remotely presented according to described first received What capability set and the second long-range reception ability that endpoint is presented determined, the 6th logical channel request opens institute for requesting The second long-range endpoint that presents is stated to the described first long-range reverse logic channel presented between endpoint.

35. device according to claim 31, which is characterized in that the interactive module includes:

7th sending module, for sending the 7th capability set interaction request to the described second long-range endpoint that presents, wherein described the Described first long-range the first transmitting capacity collection that endpoint is presented is carried in seven capability set interaction requests；

7th receiving module, for receiving the described second long-range the 7th logical channel request that endpoint is presented and sends, wherein described The request of 7th logical channel is the described second long-range transmission for endpoint being presented, endpoint being remotely presented according to described first received What capability set and the second long-range reception ability that endpoint is presented determined, the 7th logical channel request opens institute for requesting The second long-range endpoint that presents is stated to the described first long-range reverse logic channel presented between endpoint；

8th receiving module, for receiving the second long-range the 8th capability set interaction request that endpoint is presented and sends, wherein described the Described second long-range the second transmitting capacity collection that endpoint is presented is carried in eight capability set interaction requests；

8th sending module, for sending the request of the 8th logical channel to the described second long-range endpoint that presents, wherein the described 8th Logical channel request is the described first long-range transmitting capacity for endpoint being presented, endpoint being remotely presented according to described second received What collection and the first long-range receptions ability that endpoint is presented determined, the 8th logical channel request is for requesting opening described the The one long-range endpoint that presents is to the described second long-range reverse logic channel presented between endpoint.

36. device according to claim 31, which is characterized in that the scene switching strategy is used to indicate supported media Switchover policy, wherein the strategy of the media switching of the support includes place switchover policy and part switchover policy, wherein institute It states place switchover policy and is used to indicate while switching whole captures, to guarantee that capture comes from the same endpoint place, institute together Stating part switchover policy and being used to indicate different captures to switch in different times, and from identical and/or different It is long-range that endpoint is presented.

37. device according to claim 31, which is characterized in that the universal space information include scene areas and/or Region calibration parameters, wherein the scene areas parameter is used to indicate the range of overall scenario relevant to endpoint, the region Scale shows the type of the scale of spatial information parameter use.

38. device according to claim 31, which is characterized in that the universal coding information includes whole maximum belt The maximum macroblock number per second of wide, whole maximum pixel number per second and/or whole, wherein the whole maximum bandwidth is for referring to Show the bit rate of the maximum quantity per second of whole code streams of the preset kind issued by terminal；Whole maximum pixel per second Per second maximum pixel number of the number for absolute codings whole in presentation code group；Whole maximum macroblock number per second indicate by The all videos code stream that endpoint is sent maximum macroblock number per second.

39. device according to claim 31, which is characterized in that the video parameter includes: video capture quantity, video It captures spatial information and/or video captures encoded information；The video capture quantity is used to indicate the quantity of video capture.

40. device according to claim 39, which is characterized in that video capture spatial information include capture region, Point on capture point and/or capture line, wherein the capture region is for indicating video capture in whole capturing scenes Locating spatial position；The capture point, is used to indicate in capturing scenes, the position of video capture；On the capture line Point describes the spatial position of second point on capture device optical axis, and first point is capture point.

41. device according to claim 39, which is characterized in that the video captures encoded information, including 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, the maximum video bandwidth, is used to indicate the maximum number bits per second of single Video coding；The maximum per second Pixel number, the parameter are used to indicate the maximum pixel number per second of single Video coding；The width of the maximum video resolution, should Parameter is used to indicate the width of the maximum video resolution as unit of pixel；The height of the maximum video resolution, the ginseng Number is for indicating the height of the maximum video resolution as unit of pixel；The maximum video frame rate, the parameter are shown Maximum video frame rate.

42. device according to claim 31, which is characterized in that the audio frequency parameter includes audio capturing quantity, audio Capture spatial information and/or audio capturing encoded information；The audio capturing quantity is used to indicate the quantity of audio capturing.

43. device according to claim 42, which is characterized in that the audio capturing spatial information includes: capture region And/or capture point, wherein the capture region, for indicating audio capturing spatial position locating for whole capturing scenes；Institute Capture point is stated, for indicating the position of audio capturing in capturing scenes.

44. device according to claim 42, which is characterized in that the audio capturing encoded information includes: voice-grade channel Format and/or maximal audio bandwidth；The voice-grade channel format, is used to indicate the attribute of voice-grade channel；The maximal audio band Width is used to indicate the maximum number bits per second of single audio frequency coding.