CN104301658A - Multi-point video convergence system based on mobile terminal - Google Patents
Multi-point video convergence system based on mobile terminal Download PDFInfo
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- CN104301658A CN104301658A CN201410579831.9A CN201410579831A CN104301658A CN 104301658 A CN104301658 A CN 104301658A CN 201410579831 A CN201410579831 A CN 201410579831A CN 104301658 A CN104301658 A CN 104301658A
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Abstract
The invention discloses a multi-point video convergence system based on a mobile terminal. The multi-point video convergence system comprises the mobile terminal and a video convergence server, wherein the video convergence server comprises a management server, a position server, an agent server and a register server; the management server comprises a video processing unit which comprises an inverse variable length encoding module, an addressing module, a variable length encoding module and a comprehensive module; the mobile terminal comprises a video image collecting module, a format conversion module, a resolution conversion module and an encoding module. According to the multi-point video convergence system, control and management of the video convergence system based on the mobile terminal can be achieved.
Description
Technical field
The present invention relates to multipoint video and converge technical field, particularly a kind of multipoint video collecting system based on mobile terminal.
Background technology
4G business provides the abundanter network bandwidth and quality services to mobile phone users, and the mobile service thereupon brought, also in continuous expansion, means that people can enjoy mobile network's bandwidth more at a high speed.By 4G network, mobile terminal also can realize many value-added services such as high-quality voice, transmission of video and streaming media playing as computer.Along with the arrival of 4G service operation, Virtual network operator will inevitably provide the diversified technological means such as wired and wireless to user.By integrated services, bring immanent Video service to user.Wherein, it is the most frequently used that the multipoint video based on mobile terminal converges, mode the most easily.
Multipoint video collecting system based on mobile terminal can carry the multimedia data such as video, audio frequency on a communication channel, thus realizes multiple spot real time communication.Namely by mobile terminal, the multi-medium data of different location personnel's scene is sent to multiple client in real time, for user provides great portability.Multipoint video collecting system based on mobile terminal is a kind of portable, instant, efficient and have the novel communication system in widely market.But existing multipoint video collecting system, class of business is few, communication efficiency is low, compatibility is general, more and more can not meet the demand of the video traffic based on 4G.In order to realize 4G business demand, the multipoint video collecting system based on mobile terminal should at least meet following functional requirement:
(1) communication function demand: the calling that can respond and process client; The form of audio/video encoding/decoding between client can be consulted; Can realizing when not interrupting meeting, dynamically adding or deleting communication member; Realize the communication mode of point to multi--point, multicast, broadcast etc.
(2) the n-back test demand of multipoint videoconference: the initialization completing meeting according to the configuration of meeting; Conference member can add meeting by active or passive mode.Realize the execution of video conference and end and releasing resource, and realize the functions such as the change of conference member with other orthofunctions.
(3) the control and management functional requirement of multipoint videoconference: realize the management to meeting and each member thereof on the basis that video conference establishment performs, comprise the On/Off of sound to certain conference member or video, kicking out of and interpolation etc. of conference member; Function setting, makes meeting support certain function; The entirety of meeting controls, and comprises the sound of meeting or the On/Off etc. of video.
(4) multi-media processing functional requirement: the code/decode format can supporting mobile terminal, if there is not common codec between mobile terminal, can carry out suitable conversion.
Based on this, be badly in need of a kind of multipoint video collecting system that can meet the demand.
Summary of the invention
Technical problem to be solved by this invention is: the video how realized based on mobile terminal converges control and management.For this reason, the present invention proposes a kind of multipoint video collecting system based on mobile terminal, can solve one or more problems that restriction and defect due to prior art cause fully.
Additional advantages of the present invention, object and characteristic, a part will be elucidated in the following description, and another part for those of ordinary skill in the art by being obvious to the investigation of explanation below or acquiring from enforcement of the present invention.Can realize and obtain the object of the invention and advantage by the structure pointed out especially in the specification of word and claims and accompanying drawing.
The invention provides a kind of multipoint video collecting system based on mobile terminal, described system comprises mobile terminal and video convergence server, and described video convergence server comprises management server, location server, proxy server and registrar; Registrar, for the treatment of the registration request of mobile terminal; Location server, is associated for SIP identifier mobile terminal locations and registration passed through; Proxy server, sends call request for acting on behalf of certain terminal agent mobile terminal to video convergence server; Management server, for carrying out interaction process to the signaling of multiple mobile terminal, and completes the communication between terminal by the service of Session Initiation Protocol stack.
Management server comprises video processing unit, and video processing unit comprises anti-variable length coding module, addressing module, variable length coding module and integration module; Wherein, anti-variable length coding module, carries out anti-variable length code for the vision signal for receiving from multiple mobile terminal, the decoding of the vision signal received that achieves a butt joint; Addressing module, for the vision signal determination macroblock address for exporting from anti-variable length coding module, its which position that will be arranged in final video image according to the video image that each mobile terminal sends determines macroblock address; Variable length coding module, for carrying out variable length code to the vision signal exported from addressing module, realizes the compression of vision signal; Integration module, for the comprehensive vision signal exported from variable length coding module.
Described mobile terminal comprises video image acquisition module, format converting module, resolution converting block, coding module; Wherein, video image acquisition module, for passing through camera acquisition video image; Format converting module, for becoming to be used for the form of digital video signal processing by the format conversion of the video image by video image acquisition module acquires; Resolution converting block, for being reduced to the resolution preset by the resolution of the vision signal exported from format converting module; Coding module, for the encoding video signal exported from resolution converting block.
Preferably, described video image acquisition module is camera.
Preferably, described management server also comprises conference management module, and this conference management module is used for managing video meeting.
Preferably, described conference management module comprises predetermined conference submodule, meeting inquiry submodule, meeting amendment submodule, submodule is deleted in meeting and participant manages submodule.
Preferably, the VGA signal of rgb format is converted to the VGA signal of YCbCr form by described format converting module.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multipoint video collecting system according to the embodiment of the present invention.
Fig. 2 is the structural representation of the management server according to the embodiment of the present invention.
Fig. 3 is the structural representation of the mobile terminal according to the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.
As shown in Figure 1, the multipoint video collecting system based on mobile terminal is formed primarily of mobile terminal and video convergence server two parts.Mobile terminal comprises UI interface, and completes signalling and the communication of Conference server by Session Initiation Protocol.Mobile terminal also possesses the function of sound, coding and decoding video, can process the Media Stream from server.
Video convergence server comprises management server, location server, proxy server and registrar.Video collecting system can obtain the information of mobile phone users, first to determine that whether this user identity is legal, namely verify whether this user is system registry user, obtain this position information of user's terminal simultaneously, a set of like this function then needs registrar, location server and proxy server have been concentrated, wherein registrar is responsible for the registration request of terminal specially, the SIP identifier that terminal location and registration are passed through is bound together by location server, proxy server is then as an intermediate entities, name is resolved, and act on behalf of certain terminal and send call request to video convergence server, routing function in similar network.Management server is the nucleus equipment in multipoint video collecting system, and its primary responsibility carries out interaction process to the signaling of multiple terminal, and completes the correspondence between terminal by the service of Session Initiation Protocol stack.
Management server comprises conference management unit and video processing unit.Conference management unit, for managing had a meeting view, active conference and following meeting, comprises five modules: predetermined conference module, meeting enquiry module, meeting modified module, meeting removing module and participant's administration module.
Predetermined conference module, meeting is subscribed for increasing one, there is provided the specifying information of this meeting, content comprises: meeting title, meeting owner, meeting numbering, host's password, host can make a speech or record, user cipher, user be can make a speech or audit, meeting start time, meeting duration, meeting restart time, maximum participation number, whom invite participate in a conference etc.
Meeting enquiry module, meeting enquiry module contains again three submodules, be respectively: view of having had a meeting enquiry module, active conference enquiry module and following meeting enquiry module, be respectively used to inquire about had a meeting view, current ongoing meeting and following meeting, and can the specifying information of display conference, content comprises: meeting numbering, meeting title, meeting start time, meeting adjourned time, at most can people with a part in a conference's number, actual people with a part in a conference's number etc.、
Meeting modified module, for revising the meeting of any well afoot and also not having ongoing meeting.For the meeting of well afoot, following message can be revised: meeting adjourned the time, at most can people with a part in a conference's number.For the meeting also do not started, its any information can be revised, comprising: meeting title, meeting owner, meeting numbering, host's password, host can make a speech or record, user cipher, user be can make a speech or audit, meeting start time, meeting duration, meeting restart time, maximum participation number, whom invite participate in a conference etc.
Meeting removing module, for deleting meeting, meeting can be the own meeting through holding, and also can be following meeting, but can not delete the meeting participated in, and keeper is merely able to meeting to terminate, and then deletes separately.
Participant's administration module, for managing the participant of certain meeting held, comprise participant is quiet, remove quiet, it kicked out of from meeting, allow newcomer to add meeting etc.
Fig. 2 shows the block diagram of the video processing unit according to management server of the present invention.Video processing unit comprises anti-variable length coding module, addressing module, variable length coding module and integration module.Wherein, anti-variable length coding module, carries out anti-variable length code for the vision signal for receiving from each mobile terminal, thus the decoding of the vision signal received that achieves a butt joint; Addressing module, for the vision signal determination macroblock address for exporting from anti-variable length coding module, its which position that will be arranged in final video image according to the image that each mobile terminal sends determines macroblock address, namely determines the macroblock address of the vision signal exported from anti-variable length coding module according to the arrange regional in final image; Variable length coding module, for carrying out variable length code to the vision signal exported from addressing module, thus realizes the compression of vision signal; Integration module, for the comprehensive vision signal exported from variable length coding module.
Fig. 3 shows the block diagram according to a mobile terminal of the present invention.This mobile terminal comprises video image acquisition module, format converting module, resolution converting block, coding module.Wherein, video image acquisition module, for passing through camera acquisition video image; Format converting module, for becoming to be used for the form of digital video signal processing by the format conversion of the video image by video image acquisition module acquires, such as, the image received by video camera is the VGA signal of rgb format, and format converting module converts the VGA signal of this rgb format the VGA signal of YCbCr form to; Resolution converting block, for being reduced to the resolution preset by the resolution of the vision signal exported from format converting module; Coding module, for the encoding video signal exported from resolution converting block.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (5)
1., based on a multipoint video collecting system for mobile terminal, described multipoint video collecting system comprises mobile terminal and video convergence server, it is characterized in that:
Described video convergence server comprises management server, location server, proxy server and registrar; Registrar, for the treatment of the registration request of mobile terminal; Location server, is associated for SIP identifier mobile terminal locations and registration passed through; Proxy server, sends call request for acting on behalf of certain terminal agent mobile terminal to video convergence server; Management server, for carrying out interaction process to the signaling of multiple mobile terminal, and completes the communication between terminal by the service of Session Initiation Protocol stack;
Management server comprises video processing unit, and video processing unit comprises anti-variable length coding module, addressing module, variable length coding module and integration module; Wherein, anti-variable length coding module, carries out anti-variable length code for the vision signal for receiving from multiple mobile terminal, the decoding of the vision signal received that achieves a butt joint; Addressing module, for the vision signal determination macroblock address for exporting from anti-variable length coding module, its which position that will be arranged in final video image according to the video image that each mobile terminal sends determines macroblock address; Variable length coding module, for carrying out variable length code to the vision signal exported from addressing module, realizes the compression of vision signal; Integration module, for the comprehensive vision signal exported from variable length coding module;
Described mobile terminal comprises video image acquisition module, format converting module, resolution converting block, coding module; Wherein, video image acquisition module, for passing through camera acquisition video image; Format converting module, for becoming to be used for the form of digital video signal processing by the format conversion of the video image by video image acquisition module acquires; Resolution converting block, for being reduced to the resolution preset by the resolution of the vision signal exported from format converting module; Coding module, for the encoding video signal exported from resolution converting block.
2. multipoint video collecting system according to claim 1, is characterized in that, described video image acquisition module is camera.
3. multipoint video collecting system according to claim 1, is characterized in that, described management server also comprises conference management unit, and this conference management unit is used for managing video meeting.
4. multipoint video collecting system according to claim 3, is characterized in that, described conference management unit comprises predetermined conference module, meeting enquiry module, meeting modified module, meeting removing module and participant's administration module.
5. multipoint video collecting system according to claim 1, is characterized in that, described format converting module converts the VGA signal of rgb format the VGA signal of YCbCr form to.
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| CN1578456A (en) * | 2003-07-18 | 2005-02-09 | Lg电子株式会社 | Digital video signal processing apparatus of mobile communication system and method thereof |
| CN102833698A (en) * | 2004-03-10 | 2012-12-19 | 核心无线许可有限公司 | System and method for pushing content to terminal utilizing network-initiated data service technique |
| CN1842016A (en) * | 2005-03-31 | 2006-10-04 | 株式会社日立制作所 | Method and apparatus for realizing multiuser conference service using broadcast multicast service in wireless communication system |
| CN1852081A (en) * | 2005-07-12 | 2006-10-25 | 华为技术有限公司 | Method for realizing muti-part meeting through uest generation network |
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