CN102893603B - Video conferencing processing method, apparatus and communication system - Google Patents
Video conferencing processing method, apparatus and communication system Download PDFInfo
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- CN102893603B CN102893603B CN201180003293.3A CN201180003293A CN102893603B CN 102893603 B CN102893603 B CN 102893603B CN 201180003293 A CN201180003293 A CN 201180003293A CN 102893603 B CN102893603 B CN 102893603B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
- H04L65/4038—Arrangements for multi-party communication, e.g. for conferences with floor control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
Abstract
A video conferencing processing method, comprising: receiving a conference initiation request sent by a conference initiator; establishing a conference according to the conference initiation request, and determining an endpoint grade list, the endpoint grade list comprising one or more endpoint grades, each endpoint grade corresponding to a group of audio and video parameters for defining the media format of an audio and video conversation; acquiring a media format set of a participating endpoint; negotiating the audio and video parameters according to the endpoint grade list and the media format set to determine the endpoint grades; and establishing a conference session with the participating endpoint according to the determined endpoint grades. Also correspondingly provided are a video conferencing processing method and a video conferencing system.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of processing method, device and communication system of video conference.
Background technology
In global economy fast development, video conferencing system has day by day become the basic tool of enterprises and individuals's routine work.
Video conferencing system is by the audio frequency and video intercommunication of Media Resource Server (MRS, Media Resource Server) and each participant terminal, and all participants' audio-video frequency media is processed, for example audio mixing, encoding and decoding conversion etc. in many ways.In same meeting, when the terminal of receiving media stream has adopted different rates with the distant terminal that sends Media Stream, or while adopting different video protocols, MRS need to carry out the conversion of Media Stream, first Media Stream transmit leg being sent is decoded, send to recipient by recipient's agreement and speed after to decoded Media Stream recompile again, this process is called the adaptation of speed or agreement.Every adaptive Terminal Type will consume the adaptive resource in a road, so if terminal type is more, the adaptive resource of consumption is also just more.
In order to save adaptive resource, in prior art, usually the type to participant terminal and media capability limit, but, along with economical and scientific and technological development, terminal type and media capability also more and more diversified, terminal type and media capability are limited, obviously can greatly reduce user's experience, and be unfavorable for expanding the applicability of video conferencing system, how to allow how dissimilar terminal and when supporting the terminal of dissimilar media capability to access in same video conference, save as far as possible adaptive resource, become a problem receiving much concern.
Summary of the invention
The embodiment of the present invention provides a kind of processing method, device and communication system of video conference, can be in not limiting terminal type and media capability, reduce the adaptation conversion of Media Stream, to save adaptive resource.
A processing method for video conference, comprising:
Receive the meeting initiation request that meeting promoter sends;
Initiate request according to described meeting and create meeting, and the list of definite terminal class, the list of described terminal class comprises one or more terminal class, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call;
Obtain the media formats collection of participant terminal;
Carry out audio frequency and video parameter negotiation according to the list of described terminal class and media formats collection, to determine terminal class;
Set up conference call according to definite terminal class and participant terminal.
Optionally, the processing method of this video conference can also comprise:
According to the reserved adaptive resource of described terminal class list;
In the process of conference call, utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.
A treatment facility for video conference, comprising:
Receiving element, the meeting initiation request sending for receiving meeting promoter;
Processing unit, initiate request for the meeting receiving according to receiving element and create meeting, and the list of definite terminal class, the list of described terminal class comprises one or more terminal class, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call;
Acquiring unit, for obtaining the media formats collection of participant terminal;
Negotiation element, carries out audio frequency and video parameter negotiation for the media formats collection getting according to the definite terminal class list of processing unit and acquiring unit, to determine terminal class;
Set up unit, for setting up conference call according to the definite terminal class of negotiation element and participant terminal.
In addition, optional, the treatment facility of this video conference can also comprise reserved unit and adaptation unit;
Reserved unit, for according to the reserved adaptive resource of the definite terminal class list of processing unit;
Adaptation unit, for the process at conference call, utilizes the reserved adaptive resource in reserved unit to carry out media adaptation conversion for the intercommunication between different terminals class.
A kind of video conferencing system, comprises the treatment facility of any video conference that the embodiment of the present invention provides.
The embodiment of the present invention is adopted as each media formats and sets corresponding terminal class, then carry out audio frequency and video parameter negotiation according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion, thereby reduced on the whole the consumption of adaptive resource.That is to say, adopt this scheme, can be in the participant terminal that guarantees various terminal types and media capability can be linked into same meeting in, save media adaptation resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the processing method of the video conference that provides of the embodiment of the present invention;
Fig. 2 a is the scene schematic diagram of the processing method of the video conference that provides of the embodiment of the present invention;
Fig. 2 b is another flow chart of the processing method of the video conference that provides of the embodiment of the present invention;
Fig. 3 is the another flow chart of the processing method of the video conference that provides of the embodiment of the present invention;
Fig. 4 a is the structural representation of the treatment facility of the video conference that provides of the embodiment of the present invention;
Fig. 4 b is the structural representation of the treatment facility of the video conference that provides of the embodiment of the present invention.
Embodiment
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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of processing method, device and communication system of video conference.Below be elaborated respectively.
Embodiment mono-,
The present embodiment is described the angle of the treatment facility from video conference, wherein, the treatment facility of this video conference can comprise application server (AS, Application Server) and Media Resource Server (MRS, Media Resource Server).
A processing method for video conference, comprising: receive the meeting initiation request that meeting promoter sends; Initiate request according to this meeting and create meeting, and the list of definite terminal class, wherein, the list of terminal class comprises terminal class, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call; Obtain the media formats collection of participant terminal; Carry out audio frequency and video parameter negotiation according to this definite terminal class list and the media formats collection that gets, to determine terminal class; Set up conference call according to definite terminal class and participant terminal.
Referring to Fig. 1, idiographic flow can be as follows:
101, receive the meeting initiation request that meeting promoter sends;
For example, specifically can receive predetermined conference initiation request or the instant conference initiation request that meeting promoter sends.Wherein, meeting promoter is specifically as follows the meeting initiation module in the treatment facility of terminal or video conference.
Wherein, the terminal class list that request can specify this meeting to use is initiated in this meeting, or, also can specify the participant terminal list of participating in this meeting, step 101 specifically can adopt following any one mode:
(1) receive the meeting initiation request of carrying the first indication information that meeting promoter sends, wherein, the terminal class list that the first indication information indicates this meeting to use;
Wherein, the list of terminal class comprises at least one (one or more) terminal class, the corresponding one group of audio frequency and video parameter of each terminal class, such as parameters such as encoding and decoding speech, coding and decoding video, resolution and bandwidth, these parameters can accurately define the media formats of audio frequency and video call, that is to say, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call.
It should be noted that, this first indication information can comprise the particular content of terminal class list, also can only include one first mark.If only include one first mark, the treatment facility of video conference receives after this first mark, searches the first preset corresponding table, thereby obtain the list of corresponding terminal class according to this first mark; Wherein, the corresponding relation of in store the first mark and the list of terminal class in the first corresponding table.
(2) receive the meeting initiation request of carrying the second indication information that meeting promoter sends, wherein, the participant terminal list of this meeting is participated in the second indication information indication, and which terminal is the terminal of second this meeting of indication information indication participation have.
Certainly,, except above two kinds of cited modes, the list of terminal class can also be specified by other means, does not repeat them here.
In addition,, because video conference can have two-path video stream, a road is main video flowing, for showing participant's, another road is auxiliary video flowing, is used for share desktop, for example, carry out lantern slide and share etc., so, the list of terminal class also can be specified for main video flowing and auxiliary video flowing respectively, for example, can define the main video flowing terminal class list of one or more terminals, meanwhile, can also define the auxiliary video flowing terminal class list of one or more terminals; Or, also can define certain terminal class list and be applicable to main video flowing and auxiliary video flowing simultaneously, do not repeat them here.
102, initiate request according to the meeting receiving in step 101 and create meeting, and the list of definite terminal class; For example, specifically can be as follows:
(1) if in step 101, receive be carry the first indication information meeting initiate request, now, initiate request according to meeting and create meeting, and the list of definite terminal class is specifically as follows: initiate request according to this meeting and create meeting, and determine the list of terminal class according to the first indication information.
Such as, if the first indication information has comprised the particular content of terminal class list, directly using the particular content of this terminal class list as definite terminal class list; If the first indication information only includes the first mark, the treatment facility of video conference receives after this first mark, searches the first preset corresponding table, thereby obtain the list of corresponding terminal class according to this first mark; Wherein, the corresponding relation of in store the first mark and the list of terminal class in the first corresponding table.
(2) if in step 101, receive be carry the second indication information meeting initiate request, initiate request according to meeting and create meeting, and the list of definite terminal class is specifically as follows: initiate request according to this meeting and create meeting, and calculate the list of terminal class according to the second indication information and the media capability of pre-participant terminal of preserving.
Such as, the media capability of all video terminals in can preserving video conferencing system in advance in the treatment facility of video conference, then, receiving after the meeting initiation request of carrying the second indication information, automatically calculate the list of terminal class according to the second indication information and the media capability of pre-participant terminal of preserving.
103, according to the reserved adaptive resource of terminal class list definite in step 102, step 103 is optional;
Wherein, the method for reserved adaptive resource can, referring to prior art, not repeat them here.Such as, if the list of terminal class exists two terminal class, now only need the adaptive resource in a reserved road, if the list of terminal class exists three terminal class, now need the adaptive resource in reserved two tunnels, by that analogy, etc., certainly, if only there is a terminal class in the list of terminal class, that media formats that just shows that all terminals adopt is identical, now can not need reserved adaptive resource, and reserved adaptive resource is 0.
104, obtain the media formats collection of participant terminal;
For example, specifically can receive the call request participating in a conference that participant terminal is initiated, wherein, in this call request participating in a conference, carry the media formats collection of participant terminal.Or,
If terminal is invited to membership, the treatment facility of video conference can send to terminal the call request of invite participation meeting, terminal is receiving after the call request of this invite participation meeting, returns to corresponding response message, media formats collection that can carried terminal in response message.
Wherein, media formats collection refers to the set of the media formats that terminal can support, this media formats collection can reflect the media capability of terminal.
105, carry out audio frequency and video parameter negotiation according to the media formats collection getting in terminal class list definite in step 102 and step 104, to determine terminal class; For example, specifically can be as follows:
The audio frequency and video parameter of the list of terminal class and media formats collection is mated, if can mate, from the terminal class matching, select suitable terminal class according to preset strategy, such as, can select the terminal class (being the terminal class of best media effects) of the audio frequency and video parameter that can provide the highest as definite terminal class; If can not mate, return to miscue information, like this, terminal is receiving after this miscue information, just can point out user according to this miscue information, so that user processes in time.
It should be noted that, if be only that video capability is consulted unsuccessfully between participant terminal and the treatment facility of this video conference, the treatment facility of this video conference can allow video terminal with pure voice mode membership, certainly, also can, using pure speech method as one of them terminal class, directly select this terminal class in the specific implementation.
If definite terminal class list and the media formats collection getting can not mate, if there is the media formats collection of terminal cannot mate any one the terminal class in this meeting, the treatment facility of this video conference can be a new terminal class of the interim increase of this meeting, and be that this new terminal class increases corresponding adaptive resource, thereby support this terminal to add this meeting.The processing method of i.e. this video conference can also comprise:
According to media formats collection newly-increased terminal class in the list of terminal class, and increase adaptive resource for newly-increased terminal class.
In addition, if in the process of meeting, in the terminal class list of this meeting support, there is the terminal class that is not used to (be the terminal of actual participation meeting all get along well these terminal class couplings), the treatment facility of this video conference also can be deleted this terminal class temporarily, and discharge corresponding adaptive resource, thereby can save taking of adaptive resource.The processing method of i.e. this video conference can also comprise:
Delete the terminal class not being used in the list of terminal class, and discharge the adaptive resource corresponding with the terminal class of this deletion.
106, set up conference call according to definite terminal class and participant terminal; For example, specifically can be as follows:
Due to the corresponding one group of audio frequency and video parameter of each terminal class, such as parameters such as encoding and decoding speech, coding and decoding video, resolution and bandwidth, these parameters can accurately define the media formats of audio frequency and video call, so, as long as set up conference call according to corresponding audio frequency and video parameter and participant terminal.
If reserved adaptive resource (being step 103) according to definite terminal class list before this, optional, in the process of conference call, can also utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.Be that the method can also comprise step 107;
107,, in the process of conference call, utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.
Due to each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video calls, so, if terminal class difference, also just mean the media formats difference of audio frequency and video call, so, need to carry out media adaptation conversion for the intercommunication between different terminals class, wherein, the method of media adaptation conversion specifically can, referring to prior art, not repeat them here.
As from the foregoing, the present embodiment is adopted as each media formats and sets corresponding terminal class, then carry out audio frequency and video parameter negotiation according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion, thereby reduce on the whole the consumption of adaptive resource.That is to say, adopt this scheme, can be in the participant terminal that guarantees various terminal types and media capability can be linked into same meeting in, save adaptive resource.
According to the described method of embodiment mono-, below the treatment facility take video conference is specifically comprised to application server and Media Resource Server are example, are elaborated in embodiment bis-and embodiment tri-.
Embodiment bis-,
In the present embodiment, the meeting sending take meeting promoter being initiated in request, carry the first indication information describes as example.Wherein, the first indication information is indicated the terminal class list that this meeting is used.
As shown in Figure 2 a, the scene schematic diagram that this figure is video conferencing system.In this scene graph, video conferencing system comprises treatment facility and the terminal of video conference, wherein, the treatment facility of video conference specifically can comprise application server and Media Resource Server, and that terminal can have is multiple, such as referring to Fig. 2 a, can comprise terminal A, terminal B, terminal C, terminal D and terminal E, the media capability of each terminal specifically can be as shown in Table 1.
Table one:
Wherein, terminal A and terminal B belong to high definition terminal, and terminal C and terminal D belong to SD terminal, and terminal E belongs to software terminal.It should be noted that, under the identical prerequisite of coding, terminal self is all to support downward adaptation, such as, take terminal support H.264 as example, if terminal support " H.264; 1080p, 8M " means that terminal can also support " H.264; 1080p; 4M ", " H.264,720p, 2M " and " H.264; 720p, 1M " etc.Therefore, general, in the time representing the media capability of a terminal, only need to write out the media capability of the highest support of same coding, should be understood that, why table one is listed most media capability, is only in order to describe clearlyer.
The concrete function of each equipment in this video conferencing system can be as follows:
(1) user: the registered user of video conferencing system, comprises keepers at different levels and the meeting promoter of video conferencing system.Keeper can define the terminal class list with maintenance system level, enterprise-level and user class; Meeting promoter can define and safeguard this user's terminal class list.Wherein, meeting promoter can pass through meeting initiation module in the treatment facility of terminal or video conference and sends meeting and initiate request.
(2) participant terminal: the terminal participating in a conference, can be various types of voice terminals or video terminal, conventionally can support media form, and be supported in calling procedure and carry out media negotiation by signaling and opposite end, set up call according to media negotiation result and opposite end.The embodiment of the present invention can not need existing participant terminal to change.Such as, terminal A, terminal B, terminal C, terminal D and terminal E in Fig. 2 a are participant terminal.
(3) application server (AS, Application Server): the application server of video conferencing system, the functions such as user management, conference management, scheduling of resource and meeting control can be provided, and control Media Resource Server media processing function is provided; Application server can also carry out session control to each participant (comprising participant terminal and Media Resource Server), the conference call between management participant terminal and Media Resource Server.In embodiments of the present invention, application server increases the management function of terminal class, stores the list of user-defined terminal class, controls Media Resource Server and presses the terminal class of specifying by participant terminal accessing conference.
(4) Media Resource Server (MRS, Media Resource Server): the Media Resource Server of video conferencing system, media processing function is provided under application server control, support the adaptation conversion between media form, carry out media negotiation by signaling and participant terminal, set up conference call and terminal is linked in meeting according to negotiation result and participant terminal.In the embodiment of the present invention, Media Resource Server need to increase the processing capacity of terminal class, after receiving the terminal class list that application server issues, according to the adaptive resource of the reserved meeting of terminal class list, and carry out media negotiation according to the list of terminal class and participant terminal, by participant terminal with certain terminal class (being a kind of media formats) accessing conference.
Passing through terminal A with user below and send meeting initiation request, is example by terminal A as meeting promoter, and the processing method of the video conference in above-mentioned application scenarios is described.As shown in Figure 2 b, idiographic flow can be as follows:
201, meeting promoter passes through terminal A transmission meeting initiation request to application server, and with predetermined conference or initiation instant conference, wherein, this meeting is initiated to ask to carry the first indication information, to specify the terminal class list of this meeting use.
Wherein, the list of terminal class comprises at least one terminal class, the corresponding one group of audio frequency and video parameter of each terminal class, such as parameters such as encoding and decoding speech, coding and decoding video, resolution and bandwidth, these parameters can accurately define the media formats of audio frequency and video call, that is to say, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call.
202, application server calls Media Resource Server and creates meeting, and the terminal class list that meeting promoter is specified is handed down to Media Resource Server.
203, Media Resource Server creates meeting, and can be according to the adaptive resource of reserved this meeting of the terminal class list of this appointment (being also the media formats list allowing in meeting).
Step 201～step 203 is initiating conference step.
204, the call request participating in a conference that participant terminal is initiated to application server, wherein, carries the media formats collection of participant terminal in this call request participating in a conference.
Wherein, media formats collection refers to the set of the media formats that terminal can support, can comprise one or more media formats, and this media formats collection can reflect the media capability of terminal.
For example, terminal B, terminal C, terminal D and terminal E can send respectively the call request participating in a conference to application server, and in the call request participating in a conference at these, carry media formats collection separately, it is the media formats collection of carried terminal A in the call request participating in a conference that sends of terminal A, the media formats collection of carried terminal B in the call request participating in a conference that terminal B sends, the media formats collection of carried terminal C in the call request participating in a conference that terminal C sends, the media formats collection of carried terminal D in the call request participating in a conference that terminal D sends, the media formats collection of carried terminal E in the call request participating in a conference that terminal E sends, by that analogy, etc..Wherein, the media capability of terminal A, terminal B, terminal C, terminal D and terminal E can be referring to table one.
205, application server obtains the media formats collection of participant terminal from the call request that this participates in a conference, and initiates the call request participating in a conference to Media Resource Server, and the media formats collection of terminal is passed through to Media Resource Server.
206, the call request participating in a conference arrives after Media Resource Server, Media Resource Server obtains the media formats collection of terminal from the call request participating in a conference, carry out media negotiation according to the terminal class list of the media formats collection getting and this meeting support, obtain media negotiation result, for example, specifically can be as follows:
Audio frequency and video parameter matching is carried out in the terminal class list of the media formats collection getting and this meeting support by Media Resource Server, to determine terminal class, if the media formats collection of terminal can mate, such as matching multiple terminal class, Media Resource Server is selected suitable terminal class from the terminal class matching according to preset strategy, such as, can preferentially select the terminal class (being the terminal class of best media effects) of the audio frequency and video parameter that wherein can provide the highest as definite terminal class; If can not mate, return to miscue information, like this, terminal is receiving after this miscue information, just can point out user according to this miscue information, so that user processes in time.
Such as, terminal class is divided into " high definition terminal ", " SD terminal " and " software terminal " three kinds, and the media capability of these three kinds of terminal class is defined as follows:
(1) high definition terminal: can support " H.264,1080p, 8M ", " H.264,1080p, 4M ", " H.264,1080p, 2M " and " H.264,1080p, 8M " four kinds of media formats;
(2) SD terminal: can support " H.264,4CIF, 768K ", " H.264, CIF, 512K " and " H.264, CIF, 384K " three kinds of media formats;
(3) software terminal: can support " H.264, CIF, 512K ", " H.264, CIF, 384K " and " H.264, QCIF, 128K " three kinds of media formats.
Take terminal C as example, as shown in Table 1, " H.264 terminal C can support, 4CIF, 768K ", " H.264, CIF, 512K " and " H.264, CIF, 384K " three kinds of media formats, divide known according to above-mentioned terminating format, wherein " H.264, CIF, 512K " and " H.264, CIF, 384K " both mated with " SD terminal ", also with " software terminal " coupling, therefore, can determine that the terminal class mating with terminal C has " SD terminal " and " software terminal ", because the media effects of " SD terminal " is good compared with " software terminal ", therefore, can select " SD terminal " as its terminal class for terminal C.
In like manner, also can be like this for other participant terminals, do not repeat them here.
207, media negotiation result is returned to application server by Media Resource Server.Wherein, this media negotiation the possibility of result is definite terminal class, defined common certain media formats supported of terminal and Media Resource Server, this negotiation result may be also miscue information, shows that the media formats collection of terminal cannot mate any one terminal class that meeting is supported.
208, the media negotiation result that application server receiving media Resource Server returns, and this media negotiation result is passed through to participant terminal.
209, participant terminal is carried out subsequent operation according to this media negotiation result after receiving the media negotiation result that application server returns, such as, can be as follows:
If specified certain terminal class in media negotiation result, set up conference call according to the terminal class of this appointment, this participant terminal joins in this meeting.
If comprised error message in the media negotiation result that conference system returns, terminal is pointed out to user, so that user carries out follow-up operation, and such as the call request of again initiating to participate in a conference, etc.
Step 204～step 209 is for participating in initiating conference step.
210,, in the process of conference call, Media Resource Server only need to utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.
It should be noted that, in the process of meeting, meeting promoter also can increase or delete the terminal class in meeting, after terminal class is increased or deletes, the terminal class of this increase or deletion is handed down to Media Resource Server by application server, is the terminal class increase of this increase or deletion or deleted corresponding media adaptation resource by Media Resource Server.
As from the foregoing, the present embodiment is adopted as each media formats and sets corresponding terminal class, the terminal class list of specifying meeting to use in the time of meeting promoter initiating conference, then carry out audio frequency and video parameter negotiation according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion, thereby reduced on the whole the consumption of adaptive resource.That is to say, adopt this scheme, for various dissimilar terminals, as long as its media capability is identical or overlapping, can add same meeting according to identical media formats, thereby can effectively control the media formats type in meeting, reduce the consumption of adaptive resource.
Embodiment tri-,
In embodiment bis-, terminal class is mainly specified by meeting promoter, and optional, terminal class also can be specified by other means, such as the treatment facility by video conference calculates according to the second indication information and the media capability of pre-participant terminal of preserving, etc.
In the present embodiment, the treatment facility take video conference is calculated to terminal class as example according to the second indication information and the media capability of pre-participant terminal of preserving, the processing method of implementing the video conference in the application scenarios in two is described.
Referring to Fig. 3, idiographic flow can be as follows:
301, meeting promoter passes through terminal A transmission meeting initiation request to application server, with predetermined conference or initiation instant conference.Wherein, meeting is initiated to carry the second indication information in request, and the participant terminal list of this meeting is participated in this indication, i.e. which terminal is the terminal that the second indication information indication participates in this meeting have.
302, application server calls Media Resource Server and creates meeting, calculates the list of terminal class according to the second indication information and the media capability of pre-participant terminal of preserving, and the terminal class list that meeting promoter is specified is handed down to Media Resource Server.
Wherein, in application server, record the media capability of all video terminals in this video conferencing system, such as the information of preserving as shown in table one (referring to the table one in embodiment bis-), etc.Like this, when application server is known while participating in the terminal of this meeting, just can be by finding out the media capability of corresponding terminal, thus obtain the list of corresponding terminal class according to the corresponding relation of media capability and terminal class.
Wherein, the list of terminal class comprises at least one (one or more) terminal class, the corresponding one group of audio frequency and video parameter of each terminal class, such as parameters such as encoding and decoding speech, coding and decoding video, resolution and bandwidth, these parameters can accurately define the media formats of audio frequency and video call, that is to say, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call.
It should be noted that, in the present embodiment, can be pre-defined and maintenance terminal class by system manager or other keepers at different levels, in the time of meeting promoter initiating conference, this terminal class configuration information setting in advance of video conferencing system Automatically invoked.
303, Media Resource Server creates meeting, and according to the adaptive resource of reserved this meeting of the terminal class list of this appointment (being also the media formats list allowing in meeting).
Step 301～step 303 is initiating conference step.
304, the call request participating in a conference that participant terminal is initiated to application server, wherein, carries the media formats collection of participant terminal in this call request participating in a conference.
Wherein, media formats collection refers to the set of the media formats that terminal can support, can comprise one or more media formats, and this media formats collection can reflect the media capability of terminal.
For example, terminal B, terminal C, terminal D and terminal E can send respectively the call request participating in a conference to application server, and in the call request participating in a conference at these, carry media formats collection separately, it is the media formats collection of carried terminal A in the call request participating in a conference that sends of terminal A, the media formats collection of carried terminal B in the call request participating in a conference that terminal B sends, the media formats collection of carried terminal C in the call request participating in a conference that terminal C sends, the media formats collection of carried terminal D in the call request participating in a conference that terminal D sends, the media formats collection of carried terminal E in the call request participating in a conference that terminal E sends, by that analogy, etc..Wherein, the media capability of terminal A, terminal B, terminal C, terminal D and terminal E can be referring to table one (being the table one in embodiment bis-).
305, application server obtains the media formats collection of participant terminal from the call request that this participates in a conference, and initiates the call request participating in a conference to Media Resource Server, and the media formats collection of terminal is passed through to Media Resource Server.
306, the call request participating in a conference reaches after Media Resource Server, Media Resource Server obtains the media formats collection of terminal from the call request participating in a conference, carry out media negotiation (being audio frequency and video parameter negotiations) according to the terminal class list of the media formats collection getting and this meeting support, obtain media negotiation result, for example, specifically can be as follows:
Audio frequency and video parameter matching is carried out in the terminal class list of the media formats collection getting and this meeting support by Media Resource Server, to determine terminal class, if the media formats collection of terminal can mate, such as matching multiple terminal class, Media Resource Server is selected suitable terminal class according to preset strategy (this preset strategy can arrange according to the demand of practical application) from the terminal class matching, such as, can preferentially select the terminal class (being the terminal class of best media effects) of the audio frequency and video parameter that wherein can provide the highest as definite terminal class, if can not mate, return to miscue information, like this, terminal is receiving after this miscue information, just can point out user according to this miscue information, so that user processes in time.
Such as, terminal class is divided into " high definition terminal ", " SD terminal " and " software terminal " three kinds, and the media capability of these three kinds of terminal class is defined as follows:
(1) high definition terminal: can support " H.264,1080p, 8M ", " H.264,1080p, 4M ", " H.264,1080p, 2M " and " H.264,1080p, 8M " four kinds of media formats;
(2) SD terminal: can support " H.264,4CIF, 768K ", " H.264, CIF, 512K " and " H.264, CIF, 384K " three kinds of media formats;
(3) software terminal: can support " H.264, CIF, 512K ", " H.264, CIF, 384K " and " H.264, QCIF, 128K " three kinds of media formats.
Take terminal C as example, as shown in Table 1, " H.264 terminal C can support, 4CIF, 768K ", " H.264, CIF, 512K " and " H.264, CIF, 384K " three kinds of media formats, divide known according to above-mentioned terminating format, wherein " H.264, CIF, 512K " and " H.264, CIF, 384K " both mated with " SD terminal ", also with " software terminal " coupling, therefore, can determine that the terminal class mating with terminal C has " SD terminal " and " software terminal ", because the media effects of " SD terminal " is good compared with " software terminal ", therefore, can select " SD terminal " as its terminal class for terminal C.
In like manner, also like this for other participant terminals, do not repeat them here.
307, media negotiation result is returned to application server by Media Resource Server.Wherein, this media negotiation the possibility of result is definite terminal class, defined common certain media formats supported of terminal and Media Resource Server, this negotiation result may be also miscue information, shows that the media formats collection of terminal cannot mate any one terminal class that meeting is supported.
308, the media negotiation result that application server receiving media Resource Server returns, and this media negotiation result is passed through to participant terminal.
309, participant terminal is carried out subsequent operation according to this media negotiation result after receiving the media negotiation result that application server returns, such as, can be as follows:
If specified certain terminal class in media negotiation result, set up conference call according to the terminal class of this appointment, this participant terminal joins in this meeting.
If the media negotiation result that conference system returns has comprised error message, terminal is pointed out to user.
Step 304～step 309 is the step that participates in a conference.
310,, in the process of conference call, Media Resource Server only need to utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.
It should be noted that, in the process of meeting, meeting promoter also can increase or delete the terminal class in meeting, after terminal class is increased or deletes, the terminal class of this increase or deletion is handed down to Media Resource Server by application server, is the terminal class increase of this increase or deletion or deleted corresponding media adaptation resource by Media Resource Server.
As from the foregoing, the present embodiment is adopted as each media formats and sets corresponding terminal class, the terminal of specifying meeting to use in the time of meeting promoter initiating conference, calculate the list of terminal class by application server according to the terminal of this appointment and the media capability of the terminal prestoring, then carry out audio frequency and video parameter negotiation by Media Resource Server according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion, thereby reduce on the whole the consumption of adaptive resource.That is to say, adopt this scheme, for various dissimilar terminals, as long as its media capability is identical or overlapping, can add same meeting according to identical media formats, thereby can effectively control the media formats type in meeting, reduce the consumption of adaptive resource.
Embodiment tetra-,
In order to implement better above method, the embodiment of the present invention also correspondingly provides a kind for the treatment of facility of video conference, as shown in Fig. 4 a, the treatment facility of this video conference can comprise receiving element 401, processing unit 402, acquiring unit 404, negotiation element 405 and set up unit 406.
Receiving element 401, the meeting initiation request sending for receiving meeting promoter;
For example, receiving element 401 specifically can receive predetermined conference initiation request or the instant conference initiation request that meeting promoter sends.Wherein, receive the meeting initiation module in the treatment facility that meeting promoter is specifically as follows terminal or video conference.
Acquiring unit 404, for obtaining the media formats collection of participant terminal;
For example, acquiring unit 404 specifically can receive the call request participating in a conference that participant terminal is initiated, and wherein, carries the media formats collection of participant terminal in this call request; Or, send the call request of invite participation meeting to participant terminal, receive the response message that participant terminal is returned, wherein, in this response message, carry the media formats collection of participant terminal;
Wherein, media formats collection refers to the set of the media formats that terminal can support, this media formats collection can reflect the media capability of terminal.
For example, negotiation element 405 specifically can mate the audio frequency and video parameter of the list of terminal class and media formats collection; If can mate, from the terminal class matching, select suitable terminal class according to preset strategy, such as, from the terminal class matching, select to provide the terminal class (being the terminal class of best media effects) of the highest audio frequency and video parameter; If can not mate, return to miscue information.
It should be noted that, if be only that video capability is consulted unsuccessfully between participant terminal and the treatment facility of this video conference, the treatment facility of this video conference can allow video terminal with pure voice mode membership, certainly, in the specific implementation also can be using pure speech method as one of them terminal class, then negotiation element 405 is directly selected this terminal class.
Set up unit 406, for setting up conference call according to the definite terminal class of negotiation element 405 and participant terminal.
Due to the corresponding one group of audio frequency and video parameter of each terminal class, such as parameters such as encoding and decoding speech, coding and decoding video, resolution and bandwidth, these parameters can accurately define the media formats of audio frequency and video call, so, as long as set up conference call according to corresponding audio frequency and video parameter participant terminal.
Optionally, as shown in Figure 4 b, the treatment facility of this video conference can also comprise reserved unit 403 and adaptation unit 407;
Wherein, the method for reserved adaptive resource can, referring to prior art, not repeat them here.Such as, if the list of terminal class exists two terminal class, now only need the adaptive resource in a reserved road, if the list of terminal class exists three terminal class, now need the adaptive resource in reserved three tunnels, by that analogy, etc., certainly, if only there is a terminal class in the list of terminal class, that media formats that just shows that all terminals adopt is identical, now can not need reserved adaptive resource, and reserved adaptive resource is 0.
Due to each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video calls, so, if terminal class difference, also just mean the media formats difference of audio frequency and video call, so, need to carry out media adaptation conversion for the intercommunication between different terminals class, wherein, the method of media adaptation conversion specifically can, referring to prior art, not repeat them here.
Wherein, optional, the list of terminal class can be initiated to specify in request in meeting by meeting promoter, that is:
Receiving element 401, the meeting initiation request of carrying the first indication information sending specifically for receiving meeting promoter, wherein, the terminal class list that the first indication information indicates this meeting to use;
Now, processing unit 402, initiates request specifically for the meeting receiving according to receiving element 401 and creates meeting, and determine the list of terminal class according to the first indication information.
It should be noted that, this first indication information can comprise the particular content of terminal class list, also can only include one first mark.If only include one first mark, the treatment facility of video conference receives after this first mark, searches the first preset corresponding table, thereby obtain the list of corresponding terminal class according to this first mark; Wherein, the corresponding relation of in store the first mark and the list of terminal class in the first corresponding table.
Or, except the list of above-mentioned said terminal class can directly be specified by meeting promoter, the list of terminal class also can be specified by other means, such as specified the participant terminal list of participating in this meeting by meeting promoter, then calculate the list of terminal class by the treatment facility of video conference according to this participant terminal list and the media capability of the terminal prestoring, that is:
Receiving element 401, the meeting initiation request of carrying the second indication information sending specifically for receiving meeting promoter, wherein, the participant terminal list of this meeting is participated in the second indication information indication;
Now, processing unit 402, initiates request specifically for the meeting receiving according to receiving element 401 and creates meeting, and calculates the list of terminal class according to the second indication information and the media capability of pre-participant terminal of preserving.
Certainly,, except above two kinds of cited modes, the list of terminal class can also be specified by other means, does not repeat them here.
In addition,, because video conference can have two-path video stream, a road is main video flowing, for showing participant's, another road is auxiliary video flowing, is used for share desktop, for example, carry out lantern slide and share etc., so, the list of terminal class also can be specified for main video flowing and auxiliary video flowing respectively, for example, can define the main video flowing terminal class list of one or more terminals, meanwhile, can also define the auxiliary video flowing terminal class list of one or more terminals; Or, also can define certain terminal class list and be applicable to main video flowing and auxiliary video flowing simultaneously, do not repeat them here.
In addition, if definite terminal class list and the media formats collection getting can not mate, if there is the media formats collection of terminal cannot mate any one the terminal class in this meeting, the treatment facility of this video conference can be a new terminal class of the interim increase of this meeting, and be that this new terminal class increases corresponding adaptive resource, thereby support this terminal to add this meeting.The treatment facility of i.e. this video conference can also comprise increase unit;
Increase unit, for increasing terminal class according to described media formats collection newly in the list of terminal class, and increase adaptive resource for newly-increased terminal class.
In like manner, if in the process of meeting, in the terminal class list of this meeting support, there is the terminal class that is not used to (be the terminal of actual participation meeting all get along well these terminal class couplings), the treatment facility of this video conference also can be deleted this terminal class temporarily, and discharge corresponding adaptive resource, thereby can save taking of adaptive resource.The treatment facility of i.e. this video conference can also comprise delete cells;
Delete cells, the terminal class not being used to for deleting the list of terminal class, and discharge the adaptive resource corresponding with the terminal class of this deletion.
It should be noted that, in the specific implementation, above unit can be used as independently entity and realizes, also can carry out combination in any, realize as same or several entities, such as, the treatment facility of this video conference specifically can comprise application server (AS, Application Server) and Media Resource Server (MRS, Media Resource Server).The enforcement of above unit specifically can, referring to embodiment above, not repeat them here.
As from the foregoing, the treatment facility of the video conference of the present embodiment is adopted as each media formats and sets corresponding terminal class, then carry out audio frequency and video parameter negotiation by negotiation element 405 according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion by adaptation unit 407, thereby reduced on the whole the consumption of adaptive resource.That is to say, adopt this scheme, for various dissimilar terminals, as long as its media capability is identical or overlapping, can add same meeting according to identical media formats, thereby can effectively control the media formats type in meeting, reduce the consumption of adaptive resource.
Embodiment five,
Accordingly, the embodiment of the present invention also provides a kind of video conferencing system, comprises the treatment facility of any video conference that the embodiment of the present invention provides, and wherein, the treatment facility of this video conference specifically can, referring to embodiment tetra-, not repeat them here.
In addition, this video conferencing system can also comprise terminal;
Terminal, for sending the call request that the participates in a conference treatment facility to video conference, and the terminal class that sends of the treatment facility of receiver, video meeting, set up conference call according to the treatment facility of this terminal class and video conference.
Wherein, terminal sends to the media formats collection that can carry participant terminal in the call request participating in a conference for the treatment of facility of video conference, certainly, if preserved the media formats collection of each terminal in video conferencing system in the treatment facility of video conference, now also can carry the media formats collection of participant terminal, but directly concentrate and obtain corresponding media formats collection at the media formats prestoring according to participant terminal by the treatment facility of video conference.
The concrete enforcement of each equipment can be participated in embodiment above above, does not repeat them here.
As from the foregoing, the video conferencing system of the present embodiment is adopted as each media formats and sets corresponding terminal class, then carry out audio frequency and video parameter negotiation according to the list of terminal class and media formats collection and determine terminal class, thereby require participant terminal to adopt a certain media formats, to reduce the adaptation conversion of Media Stream, and for the participant terminal that cannot adopt same media formats, just carry out media adaptation conversion, thereby reduce on the whole the consumption of adaptive resource.That is to say, adopt this scheme, can be in the participant terminal that guarantees various terminal types and media capability can be linked into same meeting in, save media adaptation resource.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is can carry out the hardware that instruction is relevant by program to complete, this program can be stored in a computer-readable recording medium, storage medium can comprise: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
Processing method, device and the communication system of a kind of the video conference above embodiment of the present invention being provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for those skilled in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (16)
1. a processing method for video conference, is characterized in that, comprising:
Receive the meeting initiation request that meeting promoter sends;
Initiate request according to described meeting and create meeting, and the list of definite terminal class, the list of described terminal class comprises one or more terminal class, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call;
Obtain the media formats collection of participant terminal;
Carry out audio frequency and video parameter negotiation according to the list of described terminal class and media formats collection, to determine terminal class;
Set up conference call according to definite terminal class and participant terminal.
2. method according to claim 1, is characterized in that,
The meeting that described reception meeting promoter sends is initiated request and is specially: request is initiated in the meeting of carrying the first indication information that receives meeting promoter transmission, the terminal class list that described the first indication information indicates this meeting to use;
Described according to described meeting initiation request establishment meeting, and the list of definite terminal class is specially: initiate request establishment meeting according to described meeting, and determine the list of terminal class according to the first indication information.
3. method according to claim 1, is characterized in that,
The meeting that described reception meeting promoter sends is initiated request and is specially: request is initiated in the meeting of carrying the second indication information that receives meeting promoter transmission, and the participant terminal list of this meeting is participated in described the second indication information indication;
Described according to described meeting initiation request establishment meeting, and the list of definite terminal class is specially: initiate request establishment meeting according to described meeting, and calculate the list of terminal class according to the second indication information and the media capability of the participant terminal of preserving in advance.
4. according to the method in any one of claims 1 to 3, it is characterized in that, described in obtain the media formats collection of participant terminal, comprising:
Receive the call request participating in a conference that participant terminal is initiated, in described call request, carry the media formats collection of participant terminal; Or,
Send the call request of invite participation meeting to participant terminal, receive the response message that participant terminal is returned, in described response message, carry the media formats collection of participant terminal.
5. according to the method in any one of claims 1 to 3, it is characterized in that, also comprise:
According to the reserved adaptive resource of described terminal class list;
In the process of conference call, utilize reserved adaptive resource to carry out media adaptation conversion for the intercommunication between different terminals class.
6. according to the method in any one of claims 1 to 3, it is characterized in that, carry out audio frequency and video parameter negotiation according to the list of described terminal class and media formats collection, to determine terminal class, comprising:
The audio frequency and video parameter of the list of described terminal class and media formats collection is mated;
If can mate, from the terminal class matching, select the terminal class of the audio frequency and video parameter that can provide the highest;
If can not mate, return to miscue information, or according to described media formats collection newly-increased terminal class in the list of terminal class, and increase adaptive resource for newly-increased terminal class.
7. method according to claim 6, is characterized in that, the method also comprises:
Delete the terminal class not being used in the list of terminal class, and discharge the adaptive resource corresponding with the terminal class of this deletion.
8. a treatment facility for video conference, is characterized in that, comprising:
Receiving element, the meeting initiation request sending for receiving meeting promoter;
Processing unit, initiate request for the meeting receiving according to receiving element and create meeting, and the list of definite terminal class, the list of described terminal class comprises one or more terminal class, each terminal class corresponding one group for defining the audio frequency and video parameter of media formats of audio frequency and video call;
Acquiring unit, for obtaining the media formats collection of participant terminal;
Negotiation element, carries out audio frequency and video parameter negotiation for the media formats collection getting according to the definite terminal class list of processing unit and acquiring unit, to determine terminal class;
Set up unit, for setting up conference call according to the definite terminal class of negotiation element and participant terminal.
9. the treatment facility of video conference according to claim 8, is characterized in that,
Described receiving element, the meeting initiation request of carrying the first indication information sending specifically for receiving meeting promoter, the terminal class list that described the first indication information indicates this meeting to use;
Described processing unit, initiates request specifically for the meeting receiving according to receiving element and creates meeting, and determine the list of terminal class according to the first indication information.
10. the treatment facility of video conference according to claim 8, is characterized in that,
Described receiving element, the meeting initiation request of carrying the second indication information sending specifically for receiving meeting promoter, the participant terminal list of this meeting is participated in described the second indication information indication;
Described processing unit, initiates request specifically for the meeting receiving according to receiving element and creates meeting, and calculates the list of terminal class according to the second indication information and the media capability of pre-participant terminal of preserving.
The treatment facility of the video conference in 11. according to Claim 8 to 10 described in any one, is characterized in that,
Acquiring unit, the call request participating in a conference of initiating specifically for receiving participant terminal, carries the media formats collection of participant terminal in described call request; Or, send the call request of invite participation meeting to participant terminal, receive the response message that participant terminal is returned, in described response message, carry the media formats collection of participant terminal.
The treatment facility of the video conference in 12. according to Claim 8 to 10 described in any one, is characterized in that, also comprises reserved unit and adaptation unit;
Reserved unit, for according to the reserved adaptive resource of the definite terminal class list of processing unit;
Adaptation unit, for the process at conference call, utilizes the reserved adaptive resource in reserved unit to carry out media adaptation conversion for the intercommunication between different terminals class.
The treatment facility of the video conference in 13. according to Claim 8 to 10 described in any one, is characterized in that,
Negotiation element, specifically for mating the audio frequency and video parameter of the list of described terminal class and media formats collection; If can mate, from the terminal class matching, select the terminal class of the audio frequency and video parameter that can provide the highest; If can not mate, return to miscue information.
The treatment facility of 14. video conferences according to claim 13, is characterized in that, also comprises increase unit;
Described increase unit, for increasing terminal class according to described media formats collection newly in the list of terminal class, and increases adaptive resource for newly-increased terminal class.
The treatment facility of 15. video conferences according to claim 13, is characterized in that, also comprises delete cells;
Described delete cells, the terminal class not being used to for deleting the list of terminal class, and discharge the adaptive resource corresponding with the terminal class of this deletion.
16. 1 kinds of video conferencing systems, comprise the treatment facility of any video conference described in claim 8 to 15.
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| CN106612410B (en) * | 2015-10-26 | 2019-06-25 | 大唐移动通信设备有限公司 | A kind of method and device of video monitoring |
| CN107659415B (en) * | 2016-07-25 | 2021-05-18 | 中兴通讯股份有限公司 | Media resource management method and device for cloud conference |
| CN108933675B (en) * | 2017-05-25 | 2022-03-04 | 中兴通讯股份有限公司 | Conference resource allocation method, device and storage medium |
| CN109217980B (en) | 2017-07-03 | 2020-11-06 | 腾讯科技（深圳）有限公司 | Encoding and decoding capacity configuration method, device and computer storage medium |
| CN109587433B (en) * | 2018-10-29 | 2020-05-22 | 视联动力信息技术股份有限公司 | Point adjusting method and point adjusting device |
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