CN106612410A - Video monitoring method and device - Google Patents
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Abstract
The invention relates to the field of communication, and discloses a video monitoring method and device which are used for expanding an application scene that a plurality of dispatching consoles monitor the same monitored terminal and improving the resource utilization rate of the dispatching consoles. The video monitoring method comprises the steps that IMS (IP Multimedia Subsystem) equipment selects the maximum video media capacity which can be supported by the monitored terminal to establish a session through multiple times of negotiation with the monitored terminal when establishing the session for the first time, so that the IMS equipment can perform transcoding on video data acquired by the monitored terminal and send the transcoded video data to each dispatching console when other dispatching consoles join in the monitoring session subsequently. Therefore, each dispatching console is ensured to see video images provided by the monitored terminal according to the self-supported media capacity when a plurality of dispatching consoles access to a system and need to monitor the same monitored terminal, and thus the resource utilization rate of the dispatching consoles is effectively improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of method and device of video monitoring.
Background technology
Being currently based on IP multimedia systems (IP Multimedia Subsystem, IMS) carries out video monitoring
Implementation in, be to hold by session initiation protocol (Session Initiation Protocol, SIP) message
Carry Session Description Protocol (Session Description Protocol, SDP) to carry out man-to-man media association
Business.
Under the scene of some videos of multi-point monitoring, the video format that dispatching desk and monitored terminal are supported leads to
Often there was only a kind of code/decode format, if two dispatching desks support respectively different code/decode format and resolution
Rate, then there will be one of dispatching desk different from monitored point resolution and monitoring requirement cannot be met
Scene.
For example, when monitored terminal occurs emergency, multiple dispatching desks can initiate to supervise this simultaneously
The monitoring of control terminal is indicated.After monitoring is set up, the terminal that is monitored is in same monitoring example with all dispatching desks
In, in the monitoring example, the Media Stream of the terminal that is monitored sends respectively to each dispatching desk, and each is adjusted
Degree platform does not send efficient media bag in addition to transmission link safeguards bag.
Such as, refering to shown in Fig. 1, after the completion of dispatching desk 1 with the negotiation of monitored terminal media, if dispatching desk
2 access the same monitored terminal of preparation monitoring, then dispatching desk 2 must use identical video with dispatching desk 1
Form or service rating are less than the video format of dispatching desk 1, if conditions above is unsatisfactory for, dispatching desk 2
Will be unable to monitor monitored terminal.
Because the hardware configuration and performance of multiple dispatching desks itself there will necessarily be diversity, and in designing at present
This monitoring application scenarios is limited, therefore, monitored results can be had a strong impact on, cause dispatching desk resource
Waste.
The content of the invention
It is an object of the invention to provide a kind of method and device of video monitoring, to extend multiple dispatching desk prisons
The application scenarios of same monitored terminal are controlled, dispatching desk resource utilization is improved.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method of video monitoring, including：
IMS equipment receives the first monitoring request that the first dispatching desk sends, and obtains first dispatching desk
First video media ability information；
The IMS equipment is based on the first video media ability information and the equipment of the IMS equipment
MRF ability informations, by consulting with monitored terminal, filter out target video ability information, and adopt
The video data that the monitored terminal sends is sent to the first dispatching desk by the target video ability information, its
In, including at least monitored terminal in the target video ability information, with the first dispatching desk or the IMS
The grade highest video format that equipment is supported jointly；
The IMS equipment receives the second monitoring request of the second dispatching desk transmission, and obtains second tune
Second video media ability information of degree platform；
The IMS equipment enters the second video media ability information with the target video ability information
Row compares, and when determining that the grade of the second video media ability information is less than the target video ability information, adopts
With the second video media ability information the video data of the terminal that is monitored is carried out being sent to described second after transcoding
Dispatching desk.
Preferably, including at least the whole for having the first dispatching desk to support in the first video media ability information
Video format；
Including at least all videos lattice for having the second dispatching desk to support in the second video media ability information
Formula；
Including at least all videos form for having IMS equipment to support in the equipment MRF ability informations.
Preferably, the IMS equipment is based on the first video media ability information and the IMS equipment
Equipment MRF ability informations, by with monitored terminal consult, filter out target video ability information,
Including：
The IMS equipment is from the first video media ability information and the equipment MRF ability informations
Video media ability information to be consulted is selected, and waits to assist by described successively according to grade order from high to low
Video format in business's video media ability information is sent to monitored terminal, until being returned according to monitored terminal
Response message determine that monitored terminal supports currently transmitted video format, then described currently transmitted is regarded
Frequency form is used as the target video ability information；Or,
The IMS equipment is from the first video media ability information and the equipment MRF ability informations
Video media ability information to be consulted is selected, and will be current etc. in the video media ability information to be consulted
Level highest video format is sent to monitored terminal, and the response message returned according to monitored terminal judges
Whether monitored terminal supports the present level highest video format, if so, by the grade highest
Video format is used as target video ability information；Otherwise, the 3rd video media of the monitored terminal is obtained
Ability information, will jointly wrap in the video media ability information to be consulted and the 3rd video media ability information
Containing and grade highest video format as the target video ability information；The 3rd video media ability
Including at least all videos form for having the monitored terminal to support in information.
Preferably, the IMS equipment is from the first video media ability information and the equipment MRF energy
Video media ability information to be consulted is selected in force information, including：
The IMS equipment is based on high-level signaling by the first video media ability information or the equipment
MRF ability informations are used as the video media ability information to be consulted；Or,
The IMS equipment sets the video format included in the first video media ability information with the IMS
The video format included in standby equipment MRF ability informations is compared, and determines grade highest video lattice
When formula belongs to the first video media ability information, using the first video media ability information as waiting to consult
Video media ability information, determines that grade highest video format belongs to the equipment MRF ability informations
When, using the equipment MRF ability informations as video media ability information to be consulted
Preferably, further including：
The IMS equipment enters the second video media ability information with the target video ability information
After going relatively, however, it is determined that the grade of the second video media ability information is higher than the target video ability information,
Then negotiation is re-started using the target video ability information, determine that the second dispatching desk supports that the target is regarded
During frequency ability information, the video data for being sent the monitored terminal using the target video ability information
It is sent to second dispatching desk.
A kind of device of video monitoring, including：
First communication unit, for receiving the first monitoring request that the first dispatching desk sends, and obtains described the
First video media ability information of one dispatching desk；
First processing units, for the equipment based on the first video media ability information and described device
MRF ability informations, by consulting with monitored terminal, filter out target video ability information, and adopt
The video data that the monitored terminal sends is sent to the first dispatching desk by the target video ability information, its
In, including at least monitored terminal in the target video ability information, with the first dispatching desk or the IMS
The grade highest video format that equipment is supported jointly；
Second communication unit, for receiving the second monitoring request of the second dispatching desk transmission, and obtains described
Second video media ability information of the second dispatching desk；
Second processing unit, for the second video media ability information to be believed with the target video ability
Breath is compared, and the grade for determining the second video media ability information is less than the target video ability information
When, using the second video media ability information the video data of the terminal that is monitored is carried out being sent to after transcoding described
Second dispatching desk.
Preferably, including at least having the in the first video media ability information for obtaining of first communication unit
The all videos form that one dispatching desk is supported；
Including at least in the second video media ability information that second communication unit is obtained has the second scheduling
The all videos form that platform is supported；
Including at least in the equipment MRF ability informations that the first processing units are obtained has the IMS equipment
The all videos form of support.
Preferably, the equipment MRF abilities based on the first video media ability information and described device are believed
Breath, by consulting with monitored terminal, when filtering out target video ability information, the first processing units
Specifically for：
Select from the first video media ability information and the equipment MRF ability informations and wait to consult
Video media ability information, and according to grade order from high to low successively by the video media energy to be consulted
Video format in force information is sent to monitored terminal, until the response message returned according to monitored terminal it is true
Surely the terminal that is monitored supports currently transmitted video format, then using the currently transmitted video format as institute
State target video ability information；Or,
Select from the first video media ability information and the equipment MRF ability informations and wait to consult
Video media ability information, and by present level highest video in the video media ability information to be consulted
Form is sent to monitored terminal, and the response message returned according to monitored terminal judges that monitored terminal is
It is no to support the present level highest video format, if so, using the grade highest video format as
Target video ability information；Otherwise, the 3rd video media ability information of the monitored terminal is obtained, will
Jointly comprise in the video media ability information to be consulted and the 3rd video media ability information and grade most
High video format is used as the target video ability information；In the 3rd video media ability information at least
Include all videos form that the monitored terminal is supported.
Preferably, choosing from the first video media ability information and the equipment MRF ability informations
Go out wait consult video media ability information when, the first processing units specifically for：
Based on high-level signaling by the first video media ability information or the equipment MRF ability informations
As the video media ability information to be consulted；Or,
By in the video format included in the first video media ability information and the equipment MRF ability informations
Comprising video format be compared, determine that grade highest video format belongs to the first video media ability
During information, using the first video media ability information as video media ability information to be consulted, it is determined that etc.
When level highest video format belongs to the equipment MRF ability informations, by equipment MRF abilities letter
Breath is used as video media ability information to be consulted.
Preferably, the second processing unit is further used for：
After the second video media ability information is compared with the target video ability information, if really
The grade of fixed second video media ability information is higher than the target video ability information, then using the target
Video capability information re-starts negotiation, when determining that the second dispatching desk supports the target video ability information,
The video data that the monitored terminal sends is sent to into described second using the target video ability information
Dispatching desk.
In the embodiment of the present invention, IMS equipment when session is set up for the first time, by repeatedly assisting with monitored terminal
Business, the maximum video media ability that picking out monitored terminal can support sets up session, then, subsequently
When still other dispatching desk adds monitor session, the video data that IMS equipment can gather monitored terminal
Each dispatching desk is sent to Jing after transcoding.So, ensuring that to work as has multiple dispatching desk access systems and needs to supervise
When controlling same monitored terminal, each dispatching desk can be according to the media capability itself supported, it is seen that quilt
The video pictures that monitor terminal is provided, so as to effectively improve dispatching desk resource utilization.
Description of the drawings
Fig. 1 is video monitoring system schematic diagram under prior art；
Fig. 2 is video monitoring system schematic diagram in the embodiment of the present invention；
Fig. 3 is video monitoring schematic flow diagram in the embodiment of the present invention；
Fig. 4 is video monitoring detail flowchart in the embodiment of the present invention；
Fig. 5 is IMS device structure schematic diagrams in the embodiment of the present invention.
Specific embodiment
In order to extend the application scenarios that multiple dispatching desks monitor same monitored terminal, dispatching desk resource profit is lifted
With rate.The method that this patent proposes a video monitoring.For aiding in multiple dispatching desks while monitoring same quilt
Monitor terminal.The method can lift the ability for interconnecting between multiple dispatching desks, and with it is existing
Agreement describes method compatibility, can be applied to as early as possible in existing network.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, is not
Whole embodiments.
Refering to shown in Fig. 2, in the embodiment of the present invention, application service (Application is included in IMS equipment
Server, AS) and media resource function (Media Resource Function, MRF) module, respectively
Referred to as AS and MRF, AS are used to realize chain of command function that MRF to be used to realize service surface function, this
Outward, IMS equipment also includes call conversation control entity (Call Server Control Function, CSCF),
For being held consultation based on Session Initiation Protocol, will not be described here.
Refering to shown in Fig. 3, in the embodiment of the present invention, IMS equipment controls multiple dispatching desks and is supervised to same
The method that control terminal carries out video monitoring is as follows：
Step 300：IMS equipment receives the first monitoring request that the first dispatching desk sends, and obtains the first tune
First video media ability information of degree platform.
In practical application, the support of the first dispatching desk is at least carried in above-mentioned first video media ability information
All videos form species (i.e. code/decode format species), further, can also include the first dispatching desk
Whole code checks of support and whole frame per second.
Specifically, the first video media ability information can be obtained in designated storage location, or, it is also possible to
Voluntarily reported by the first monitoring request by the first dispatching desk.
Step 310：IMS equipment is based on the first video media ability information and the equipment MRF of the IMS equipment
Ability information, by consulting with monitored terminal, filters out target video ability information, and is regarded using target
The video data that monitored terminal sends is sent to the first dispatching desk by frequency ability information；Wherein, target video energy
Including at least monitored terminal in force information, the grade highest supported jointly with the first dispatching desk or IMS equipment
Video format.
Preferably, including at least all videos for having IMS equipment to support in the said equipment MRF ability informations
Form, further, can also include whole code checks and whole frame per second of IMS equipment support.
Specifically, based on the first video media ability information and equipment MRF ability informations, by with quilt
Monitor terminal consult, when filtering out target video ability information, preferably, IMS equipment can adopt but not
It is limited to following two modes：
First kind of way is：IMS equipment is from the first video media ability information and equipment MRF ability informations
In select video media ability information to be consulted, and will wait successively to consult according to grade order from high to low
Video format in video media ability information is sent to monitored terminal, until what is returned according to monitored terminal
Response message determines that monitored terminal supports currently transmitted video format, then by currently transmitted video format
As the target video ability information；Or,
Specifically, i.e. order of the IMS equipment according to grade from high to low, adopts video media ability to be consulted
The video format included in information, holds consultation successively with monitored terminal, by repeatedly negotiation, final energy
Filter out the grade highest video lattice that the terminal that is monitored in video media ability information to be consulted can be supported
Formula.
The second way is：Select from the first video media ability information and equipment MRF ability informations
Video media ability information to be consulted, and present level highest will regard in video media ability information to be consulted
Frequency form is sent to monitored terminal, and the response message returned according to monitored terminal judges monitored terminal
Whether present level highest video format is supported, if so, using the grade highest video format as target
Video capability information；Otherwise, the 3rd video media ability information of monitored terminal is obtained, will treats that negotiation is regarded
Jointly comprise in frequency media capability information and the 3rd video media ability information and grade highest video format
As target video ability information；Wherein, it is monitored whole including at least having in the 3rd video media ability information
The all videos form that end is supported, further, can also include whole frame per second that monitored terminal supports and
Code check.
Specifically, i.e., IMS equipment sends out video media ability information middle grade highest video format to be consulted
Toward after monitored terminal, if monitored terminal does not support the grade highest video format, itself is supported
All videos form be sent to IMS equipment as the 3rd video media ability information, combined by IMS equipment
Video media ability information to be consulted and the 3rd video media ability information, pick out monitored terminal support and
Grade highest video format is used as target video ability information.
Further, no matter target video ability information is filtered out using above-mentioned any mode, preferably,
Video media energy to be consulted is being selected from the first video media ability information and equipment MRF ability informations
During force information, following two methods can be adopted but are not limited to：
Method 1：IMS equipment is based on high-level signaling by the first video media ability information or equipment MRF
Ability information is used as video media ability information to be consulted；
In this case, by the high-rise capability state based on each equipment in current system, it is most appropriate to indicate
The first video media ability information for using under current scene or equipment MRF ability informations are used as waiting to consult
Video media ability information.
Method 2：IMS equipment is by the video format included in the first video media ability information and equipment MRF
The video format included in ability information is compared, and determines that grade highest video format belongs to first and regards
During frequency media capability information, using the first video media ability information as video media ability information to be consulted,
When determining that grade highest video format belongs to equipment MRF ability informations, by equipment MRF ability informations
As video media ability information to be consulted.
In this case, it is, in order to pass through repeatedly negotiation, the most high of monitored terminal support to be chosen as far as possible
The video format (i.e. as target video ability information) of level sets up session, so as to regarding monitored terminal
Frequency evidence is smoothly sent to the first dispatching desk.
For example, if choosing the first video media ability information as video media ability information to be consulted,
In later negotiations, the first dispatching desk can be chosen and monitored terminal is supported jointly and grade highest is regarded
Frequency form sets up session, and so, the video data of monitored terminal can be forwarded directly to the first dispatching desk to be carried out
Present.
Again for example, if selected equipment MRF ability information is used as video media ability information to be consulted,
In later negotiations, IMS equipment can be chosen and monitored terminal is supported and grade highest video jointly
Form sets up session, and so, the video data of monitored terminal can be being sent to first Jing after IMS equipment transcodings
Dispatching desk is presented.
Step 320：IMS equipment receives the second monitoring request of the second dispatching desk transmission, and obtains second
Second video media ability information of dispatching desk.
In the embodiment of the present invention, including at least in the second video media ability information has what the second dispatching desk was supported
All videos form species；Further, whole code checks and the whole that the second dispatching desk is supported can also be included
Frame per second.
Specifically, the second video media ability information can be obtained in designated storage location, or, it is also possible to
Voluntarily reported by the second monitoring request by the second dispatching desk.
Step 330：IMS equipment is compared the second video media ability information and target video ability information
Compared with, determine the second video media ability information grade be less than target video ability information when, regard using second
Frequency media capability information carries out being sent to the second dispatching desk after transcoding to the video data of the terminal that is monitored.
Specifically, IMS equipment is it is determined that the grade of the second video media ability information is less than target video ability
Information, it is thus necessary to determine that the grade highest video format included in the second video media ability information is less than or waits
The grade of the video format included in target video ability information.
When it is determined that the grade of the second video media ability information is less than target video ability information, second is adopted
Video media ability information carries out being sent to the second dispatching desk after transcoding to the video data of the terminal that is monitored, this
Sample, can make the second dispatching desk smoothly obtain the video data of self-ability support, so as in the first dispatching desk
In the state of having monitored monitored terminal, common monitoring is smoothly completed.
On the other hand, however, it is determined that the grade of the second video media ability information is equal to target video ability information,
Then without the need for conversion, directly the video data of monitored terminal is sent to into the second dispatching desk.
And if it is determined that when the grade of the second video media ability information is higher than target video ability information, then adopting
Target video ability information re-starts negotiation with the second dispatching desk, determines that the second dispatching desk supports target video
During ability information, the video data that monitored terminal sends is sent to by the second tune using target video ability information
Degree platform.
That is, now need the second dispatching desk to reduce the grade of MRF ability informations of itself, yield to monitored
The video tenability of terminal, in the state of having monitored monitored terminal in the first dispatching desk, smoothly
Complete common monitoring.
A specific example is adopted below, and further description is made to above-described embodiment, referring particularly to
Shown in Fig. 4：
Step 401：Dispatching desk 2 to the AS in IMS equipment sends monitoring request, takes in the monitoring request
The first video media ability information with all videos form that have recorded the support of dispatching desk 2.
Step 402：AS in IMS equipment sends to the MRF in IMS equipment and invites (INVITE)
Message, does not carry Session Description Protocol (Session Description Protocol, SDP)
In the present embodiment, the AS in IMS equipment to the INVITE that the MRF in IMS equipment sends disappears
The extended field included in breath, notifies that the MRF in IMS equipment, current business are by the extended field
Video monitoring service, needs the MRF in IMS equipment to report all videos form that IMS equipment is supported
To the AS in IMS equipment, so that in later negotiations, the final target video ability for determining of order is believed
What is included in breath is the grade highest video format that monitored terminal can be supported.
Step 403：MRF in IMS equipment to the AS in IMS equipment replys 200OK responses, should
The equipment MRF ability informations of IMS equipment, equipment MRF ability informations are carried in 200OK responses
Middle record has all videos form that IMS equipment is supported, wherein, grade highest video format correspondence IMS
The MRF video maximum capacity SDP of equipment.
Accordingly, the MRF in IMS equipment receives the INVITE that AS in IMS equipment sends and disappears
After breath, according to its extended field (e.g., User-agent：Monitoring fields), determine that current business is
Video monitoring service, then create in conversation procedure follow-up, and to the AS of IMS equipment IMS equipment is sent
The all videos form that can be supported.
Step 404：AS in IMS equipment sends to monitored terminal and carries the first video media ability
The INVITE of information middle grade highest video format.
In the present embodiment, it is assumed that through comparing, the first video media of IMS selection of equipment ability information is to wait to assist
The grade of the video format recorded in business's video media ability information, i.e. the first video media ability information is most
It is high.
Step 405：Monitored terminal returns 415 and responds to AS in IMS equipment, and expression does not support first
Video media ability information middle grade highest video format.
Step 406：AS in IMS equipment to monitored terminal sends INVITE, and request is supervised
Control terminal is renegotiated based on the 3rd video media ability information that itself is adopted, the 3rd video media
Include all videos form that monitored terminal is supported, its middle grade highest video format in ability information
The MRF video maximum capacity SDP of the monitored terminal of correspondence.
Step 407：Monitored terminal to AS in IMS equipment returns 200OK responses, and the 200OK rings
The 3rd video media ability information is carried in answering.
Step 408：AS in IMS equipment determines that the 3rd video media ability information middle grade highest is regarded
Frequency form is also recorded in the first video media ability information, it is determined that by the 3rd video media ability information
Grade highest video format sends as target video ability information to the MRF in IMS equipment
INFO, for indicating IMS equipment in MRF dispatching desk 2 is added into meeting.
Step 409：MRF in IMS equipment returns INFO200OK and rings in IMS equipment with AS
Should, for notifying IMS equipment in AS, dispatching desk 2 add meeting success.
Step 410：AS in IMS equipment to the MRF in IMS equipment sends ACK message, represents
Confirm.
Step 411：AS in IMS equipment to monitored terminal sends ACK message, represents and confirms.
Step 412：AS in IMS equipment to dispatching desk 2 sends INVITE, indicates dispatching desk 2
Meeting has been successfully joined.
Step 413：Dispatching desk 2 to the AS in IMS equipment sends 200OK responses.
Step 414：AS in IMS equipment creates session with the MRF in IMS equipment.
Step 415：AS in IMS equipment determines that dispatching desk 2 successfully adds with the MRF in IMS equipment
Enter meeting.
Step 416：AS in IMS equipment to dispatching desk 2 sends ACK, and expression is successfully established
Session.
Now, the AS in IMS equipment can be based on target video ability information regarding monitored terminal to report
Frequency can see the video of monitored terminal collection according to dispatching desk 2 is sent on dispatching desk 2, the video has
Video possibly after MRF transcodings.
Step 417：Dispatching desk 1 to the AS in IMS equipment sends monitoring request, and be now monitored terminal
In monitored state.
Step 418：AS in IMS equipment sends to dispatching desk 1 and carries target video ability information
INVITE.
Step 419：Dispatching desk 1 determines the grade of the grade highest video format itself supported, less than mesh
The grade of the video format in mark video capability information, then return 200OK and ring to the AS in IMS equipment
Answer or ACK.
Step 420：MRF in AS and IMS equipment in IMS equipment creates session.
Step 421：AS in IMS equipment determines that dispatching desk 1 successfully adds with the MRF in IMS equipment
Enter meeting.
Step 422：MRF in IMS equipment can be based on the grade highest video lattice that dispatching desk 1 is supported
Formula, to the video data of the terminal to report that is monitored transcoding is carried out.
Video data after transcoding can be sent to dispatching desk 1 by the AS in IMS equipment, can on dispatching desk 1
To see the video of monitored terminal collection.
In the above-described embodiments, by the multiple pattern consulted, complete monitored terminal and dispatching desk 2 it
Between video format maximum support, after the access system of dispatching desk 1 needs the monitored terminal of monitoring, in scheduling
When the video format requirements of platform 1 are less than dispatching desk 2, video code flow directly can be carried out transcoding by IMS equipment
It is sent to dispatching desk 2.So as to the video data that monitored terminal is adopted can be seen on dispatching desk 2, with
Reach optimal common monitoring effect.
Table 1
For example, refering to shown in chart 1, it is assumed that have four kinds of MRF video formats, QCIF, CIF, VGA
And DI, its grade successively from high to low, and assumes that dispatching desk 2 is monitored to monitored terminal,
So when dispatching desk 1 also asks to be monitored monitored terminal, (the scene sequence under different application scene
Row are as shown in the 1st list items), the grade highest MRF video format the such as the 4th that the terminal that is monitored is supported is arranged
Shown in list item, and under corresponding scene, the MRF video formats that dispatching desk 2 is supported are as shown in the 2nd list items.
As long as from table 1 it follows that the grade of the video format of the support of dispatching desk 1 is whole less than or equal to monitored
The video format that end is supported, then can realize that multiple dispatching desks are monitored to monitored terminal simultaneously, show
So, compared to prior art, the scheme of embodiment of the present invention description is with more wide
Based on above-described embodiment, refering to shown in Fig. 5, in the embodiment of the present invention, with IMS equipment is included
One communication unit 50, first processing units 51, the second communication unit 52 and second processing unit 53, wherein
First communication unit 50, for receiving the first monitoring request that the first dispatching desk sends, and obtains first
First video media ability information of dispatching desk；
First processing units 51, for the equipment based on the first video media ability information and IMS equipment
MRF ability informations, by consulting with monitored terminal, filter out target video ability information, and adopt
The video data that monitored terminal sends is sent to the first dispatching desk by target video ability information, wherein, target
Including at least monitored terminal in video capability information, with the first dispatching desk or IMS equipment support jointly etc.
Level highest video format；
Second communication unit 52, for receiving the second monitoring request of the second dispatching desk transmission, and obtains the
Second video media ability information of two dispatching desks；
Second processing unit 53, for the second video media ability information and target video ability information to be carried out
Relatively, when determining that the grade of the second video media ability information is less than target video ability information, second is adopted
Video media ability information carries out being sent to the second dispatching desk after transcoding to the video data of the terminal that is monitored.
Preferably, including at least having the in the first video media ability information that obtains of the first communication unit 50
The all videos form that one dispatching desk is supported；
Including at least in the second video media ability information that second communication unit 52 is obtained has the second dispatching desk
The all videos form of support；
Including at least in the equipment MRF ability informations that first processing units 51 are obtained has IMS equipment to support
All videos form.
Preferably, based on the first video media ability information and equipment MRF ability informations, by with supervised
Control terminal consult, when filtering out target video ability information, first processing units 51 specifically for：
Video media to be consulted is selected from the first video media ability information and equipment MRF ability informations
Ability information, and according to grade order from high to low successively by regarding in video media ability information to be consulted
Frequency form is sent to monitored terminal, until the response message returned according to monitored terminal determines monitored terminal
Currently transmitted video format is supported, then using currently transmitted video format as target video ability information；
Or,
Video media to be consulted is selected from the first video media ability information and equipment MRF ability informations
Ability information, and present level highest video format will be sent to and be supervised in video media ability information to be consulted
Control terminal, and judge whether monitored terminal supports current etc. according to the response message of monitored terminal return
Level highest video format, if so, using grade highest video format as target video ability information；It is no
Then, obtain the 3rd video media ability information of monitored terminal, by video media ability information to be consulted with
Jointly comprise in 3rd video media ability information and grade highest video format is used as target video ability
Information；Including at least all videos form for having monitored terminal to support in 3rd video media ability information.
Preferably, select from the first video media ability information and equipment MRF ability informations to wait to consult
During video media ability information, first processing units 51 specifically for：
Based on high-level signaling using the first video media ability information or equipment MRF ability informations as waiting to assist
Business's video media ability information；Or,
To include in the video format included in first video media ability information and equipment MRF ability informations
Video format be compared, determine that grade highest video format belongs to the first video media ability information
When, using the first video media ability information as video media ability information to be consulted, determine grade highest
When video format belongs to equipment MRF ability informations, using equipment MRF ability informations as video to be consulted
Media capability information.
Preferably, second processing unit 53 is further used for：
After second video media ability information and target video ability information are compared, however, it is determined that second regards
The grade of frequency media capability information is higher than target video ability information, then using target video ability information again
Hold consultation, when determining that the second dispatching desk supports target video ability information, using target video ability information
The video data that monitored terminal sends is sent to into the second dispatching desk.
Above-mentioned first communication unit 50, first processing units 51, the second communication unit 52 and second processing list
The functional module that unit 53 only divides in logic, in practical application, its function is complete with AS and MRF
Into will not be described here.
In sum, in the embodiment of the present invention, IMS equipment when session is set up for the first time, by with it is monitored
Terminal is repeatedly consulted, and the maximum video media ability that picking out monitored terminal can support sets up session,
So, when follow-up still other dispatching desk adds monitor session, IMS equipment can gather monitored terminal
Video data each dispatching desk is sent to Jing after transcoding.So, ensuring that to work as has multiple dispatching desks to access system
When uniting and need to monitor same monitored terminal, each dispatching desk can be according to the media energy itself supported
Power, it is seen that the video pictures that monitored terminal is provided, so as to effectively improve dispatching desk resource utilization.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
Close the form of the embodiment in terms of software and hardware.And, the present invention can be adopted and wherein wrapped at one or more
Computer-usable storage medium containing computer usable program code (including but not limited to disk memory,
CD-ROM, optical memory etc.) on implement computer program form.
The present invention is produced with reference to method according to embodiments of the present invention, equipment (system) and computer program
The flow chart and/or block diagram of product is describing.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or square frame and flow chart and/or the flow process in block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedded
The processor of formula datatron or other programmable data processing devices is producing a machine so that by calculating
The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one
The device of the function of specifying in individual flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable datas process to set
In the standby computer-readable memory for working in a specific way so that in being stored in the computer-readable memory
Instruction produce and include the manufacture of command device, command device realization is in one flow process or multiple of flow chart
The function of specifying in one square frame of flow process and/or block diagram or multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of specifying in flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the embodiment of the present invention and not take off
From the spirit and scope of the embodiment of the present invention.So, if these modifications of the embodiment of the present invention and modification category
Within the scope of the claims in the present invention and its equivalent technologies, then the present invention be also intended to comprising these change and
Including modification.
Claims (10)
1. a kind of method of video monitoring, it is characterised in that include：
IP Multimedia System IMS equipment receives the first monitoring request that the first dispatching desk sends, and obtains
First video media ability information of first dispatching desk；
The IMS equipment is based on the first video media ability information and the equipment of the IMS equipment
MRF ability informations, by consulting with monitored terminal, filter out target video ability information, and adopt
The video data that the monitored terminal sends is sent to the first dispatching desk by the target video ability information, its
In, including at least monitored terminal in the target video ability information, with the first dispatching desk or the IMS
The grade highest video format that equipment is supported jointly；
The IMS equipment receives the second monitoring request of the second dispatching desk transmission, and obtains second tune
Second video media ability information of degree platform；
The IMS equipment enters the second video media ability information with the target video ability information
Row compares, and when determining that the grade of the second video media ability information is less than the target video ability information, adopts
The video data of the terminal that is monitored is carried out with the second video capability information be sent to second scheduling after transcoding
Platform.
2. the method for claim 1, it is characterised in that the first video media ability information
In including at least have the first dispatching desk support all videos form；
Including at least all videos lattice for having the second dispatching desk to support in the second video media ability information
Formula；
Including at least all videos lattice for having the IMS equipment to support in the equipment MRF ability informations
Formula.
3. the method for claim 1, it is characterised in that the IMS equipment is based on described first
The equipment MRF ability informations of video media ability information and the IMS equipment, by with monitored terminal
Consult, filter out target video ability information, including：
The IMS equipment is from the first video media ability information and the equipment MRF ability informations
Video media ability information to be consulted is selected, and waits to assist by described successively according to grade order from high to low
Video format in business's video media ability information is sent to monitored terminal, until being returned according to monitored terminal
Response message determine that monitored terminal supports currently transmitted video format, then described currently transmitted is regarded
Frequency form is used as the target video ability information；Or,
The IMS equipment is from the first video media ability information and the equipment MRF ability informations
Video media ability information to be consulted is selected, and will be current etc. in the video media ability information to be consulted
Level highest video format is sent to monitored terminal, and the response message returned according to monitored terminal judges
Whether monitored terminal supports the present level highest video format, if so, by the grade highest
Video format is used as target video ability information；Otherwise, the 3rd video media of the monitored terminal is obtained
Ability information, will jointly wrap in the video media ability information to be consulted and the 3rd video media ability information
Containing and grade highest video format as the target video ability information；The 3rd video media ability
Including at least all videos form for having the monitored terminal to support in information.
4. method as claimed in claim 3, it is characterised in that the IMS equipment is regarded from described first
Video media ability letter to be consulted is selected in frequency media capability information and the equipment MRF ability informations
Breath, including：
The IMS equipment is based on high-level signaling by the first video media ability information or the equipment
MRF ability informations are used as the video media ability information to be consulted；Or,
The IMS equipment sets the video format included in the first video media ability information with the IMS
The video format included in standby equipment MRF ability informations is compared, and determines grade highest video lattice
When formula belongs to the first video media ability information, using the first video media ability information as waiting to consult
Video media ability information, determines that grade highest video format belongs to the equipment MRF ability informations
When, using the equipment MRF ability informations as video media ability information to be consulted.
5. the method as described in any one of claim 1-4, it is characterised in that further include：
The IMS equipment enters the second video media ability information with the target video ability information
After going relatively, however, it is determined that the grade of the second video media ability information is higher than the target video ability information,
Then negotiation is re-started using the target video ability information, determine that the second dispatching desk supports that the target is regarded
During frequency ability information, the video data for being sent the monitored terminal using the target video ability information
It is sent to second dispatching desk.
6. a kind of device of video monitoring, it is characterised in that include：
First communication unit, for receiving the first monitoring request that the first dispatching desk sends, and obtains described the
First media resource function MRF ability informations of one dispatching desk；
First processing units, for the equipment based on the first video media ability information and described device
MRF ability informations, by consulting with monitored terminal, filter out target video ability information, and adopt
The video data that the monitored terminal sends is sent to the first dispatching desk by the target video ability information, its
In, including at least monitored terminal in the target video ability information, with the first dispatching desk or the IMS
The grade highest video format that equipment is supported jointly；
Second communication unit, for receiving the second monitoring request of the second dispatching desk transmission, and obtains described
Second video media ability information of the second dispatching desk；
Second processing unit, for the second video media ability information to be believed with the target video ability
Breath is compared, and the grade for determining the second video media ability information is less than the target video ability information
When, using the second video media ability information the video data of the terminal that is monitored is carried out being sent to after transcoding described
Second dispatching desk.
7. device as claimed in claim 6, it is characterised in that first communication unit obtain the
Including at least all videos form for having the first dispatching desk to support in one video media ability information；
Including at least in the second video media ability information that second communication unit is obtained has the second scheduling
The all videos form that platform is supported；
Including at least in the equipment MRF ability informations that the first processing units are obtained has the IMS
The all videos form that equipment is supported.
8. device as claimed in claim 6, it is characterised in that based on the first video media ability
The equipment MRF ability informations of information and described device, by consulting with monitored terminal, filter out target
During video capability information, the first processing units specifically for：
Select from the first video media ability information and the equipment MRF ability informations and wait to consult
Video media ability information, and according to grade order from high to low successively by the video media energy to be consulted
Video format in force information is sent to monitored terminal, until the response message returned according to monitored terminal it is true
Surely the terminal that is monitored supports currently transmitted video format, then using the currently transmitted video format as institute
State target video ability information；Or,
Select from the first video media ability information and the equipment MRF ability informations and wait to consult
Video media ability information, and by present level highest video in the video media ability information to be consulted
Form is sent to monitored terminal, and the response message returned according to monitored terminal judges that monitored terminal is
It is no to support the present level highest video format, if so, using the grade highest video format as
Target video ability information；Otherwise, the 3rd video media ability information of the monitored terminal is obtained, will
Jointly comprise in the video media ability information to be consulted and the 3rd video media ability information and grade most
High video format is used as the target video ability information；In the 3rd video media ability information at least
Include all videos form that the monitored terminal is supported.
9. device as claimed in claim 8, it is characterised in that from the first video media ability letter
Select in breath and the equipment MRF ability informations when video media ability information is consulted, described first
Processing unit specifically for：
Based on high-level signaling by the first video media ability information or the equipment MRF ability informations
As the video media ability information to be consulted；Or,
By in the video format included in the first video media ability information and the equipment MRF ability informations
Comprising video format be compared, determine that grade highest video format belongs to the first video media ability
During information, using the first video media ability information as video media ability information to be consulted, it is determined that etc.
When level highest video format belongs to the equipment MRF ability informations, by equipment MRF abilities letter
Breath is used as video media ability information to be consulted.
10. the device as described in any one of claim 6-9, it is characterised in that the second processing list
Unit is further used for：
After the second video media ability information is compared with the target video ability information, if really
The grade of fixed second video media ability information is higher than the target video ability information, then using the target
Video capability information re-starts negotiation, when determining that the second dispatching desk supports the target video ability information,
The video data that the monitored terminal sends is sent to into described second using the target video ability information
Dispatching desk.
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