WO2011063763A1 - 一种包含远程呈现会场的会议控制方法、装置及系统 - Google Patents

一种包含远程呈现会场的会议控制方法、装置及系统 Download PDF

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Publication number
WO2011063763A1
WO2011063763A1 PCT/CN2010/079211 CN2010079211W WO2011063763A1 WO 2011063763 A1 WO2011063763 A1 WO 2011063763A1 CN 2010079211 W CN2010079211 W CN 2010079211W WO 2011063763 A1 WO2011063763 A1 WO 2011063763A1
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WO
WIPO (PCT)
Prior art keywords
site
code stream
remote presentation
conference
information
Prior art date
Application number
PCT/CN2010/079211
Other languages
English (en)
French (fr)
Inventor
吴姣黎
苏红宏
王静
陈显义
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP10832670A priority Critical patent/EP2509311A4/en
Publication of WO2011063763A1 publication Critical patent/WO2011063763A1/zh
Priority to US13/484,015 priority patent/US8848023B2/en
Priority to US14/477,953 priority patent/US9332225B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/15Conference systems
    • H04N7/152Multipoint control units therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567Multimedia conference systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/15Conference systems

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a conference control method, apparatus, and system including a remote presentation site. Background technique
  • the remote presentation site intercommunication mainly refers to a multimedia conference conducted by multiple telepresence sites under the control of an MCU (Multipoint Control Unit).
  • the control scheme of the remote presentation conference for the plurality of telepresence conference sites includes: a voice control handover scheme, which broadcasts all screens of the remote presentation site with the highest voice to other conference sites, or selects the remote presentation site with the largest voice.
  • the fixed screen image is broadcast to other telepresence sites and displayed on the screen corresponding to other telepresence venues; the other is a live-size image transmission scheme, where each telepresence site in the scheme sends a local live-size image to other Telepresence venues for multimedia conferencing.
  • the specific implementation process of the solution is as follows: When each telepresence site receives a life-size image of a plurality of other telepresence sites, the first received live-size image can be displayed on the entire screen first, and then received later. The live image of the other telepresence sites is reduced and superimposed below the screen, so that multiple images of the telepresence site can be seen at the same time; another solution is a panoramic image transmission scheme, which adjusts each remote presentation site by adjusting The main camera is configured to obtain a panoramic image of the conference site, and then transmit the panoramic image to other remote telepresence sites at the remote end, and different images of the remote telepresence site can be seen on different screens of the remote telepresence site, so that the panoramic image can be viewed simultaneously.
  • the common site will use the multi-screen mode to perform multimedia conferences with the remote presentation site.
  • the normal site will merge the code streams of the multiple site images received. View the panoramic image of the merged telepresence site directly.
  • Embodiments of the present invention provide a conference control method, apparatus, and system including a remote presentation site. Embodiments of the present invention adopt the following technical solutions:
  • an embodiment of the present invention provides a conference control method including a remote presentation site, where the method includes:
  • the conference control is performed according to the attribute information of the received remote presentation site.
  • the embodiment of the present invention further provides a multi-point control unit, where the unit includes: an information receiving module, configured to receive attribute information of the remote presentation site sent by the remote presentation site; wherein, the remote presentation site Including at least two video regions;
  • the conference control module is configured to perform conference control according to the attribute information of the received remote presentation site.
  • the embodiment of the present invention further provides a site terminal, where the site terminal includes: an information sending module, configured to send attribute information of the remote presentation site; wherein the remote presentation site includes at least two video regions;
  • the information receiving module is configured to receive attribute information of each remote presentation site delivered by the multi-point control unit.
  • an embodiment of the present invention further provides a conference control system including a remote presentation site, where the system includes:
  • At least one venue terminal and at least one multipoint control unit At least one venue terminal and at least one multipoint control unit
  • the site terminal is configured to send the attribute information of the remote presentation site, and receive the attribute information of each remote presentation site that is sent by the multi-point control unit.
  • the remote presentation site includes at least two video regions.
  • the multi-point control unit is configured to receive attribute information of the remote presentation site sent by the remote presentation site, and perform conference control according to the attribute information of the received remote presentation site.
  • the attribute information of the site can be automatically sent to the multi-point control unit MCU to negotiate the capability of the site.
  • the capability negotiation process of each site can be automatically completed without manual configuration, which saves a lot of labor costs.
  • FIG. 1 is a flow chart of a conference control method including a remote presentation site according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an implementation of a conference control method including a remote presentation site according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a capability negotiation process in a conference control method including a remote presentation site according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a conference control step according to the attribute information of the received remote presentation site in the conference control method including the remote presentation site according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a multi-point control unit according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a conference terminal according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a conference control system including a remote presentation site according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a conference control system including a remote presentation site according to an embodiment of the present disclosure
  • FIG. 9 is a control flow chart of a conference control system for a telepresence conference between an ordinary conference site and a telepresence conference site according to an embodiment of the present invention.
  • FIG. 10 is a control flowchart of a conference control system for a telepresence conference between conference sites under the control of a cascade MCU according to an embodiment of the present invention. detailed description
  • a conference control method including a remote presentation site is provided according to an embodiment of the present invention, where the method includes:
  • the MCU receives the attribute information of the remote presentation site that is sent by the remote presentation site.
  • the remote presentation site includes at least two video regions.
  • the attribute information of the remote presentation site includes: a type of the site, a video zone of the site.
  • the MCU performs conference control according to the attribute information of the received telepresence site. It should be noted that, when the conference that includes the telepresence site needs to cross the multipoint control unit, the step may determine, according to the attribute information of the received telepresence site, the cascading channel between the cascaded multipoint control units. Number, establish the corresponding number of cascade channels.
  • an implementation process of a conference control method including a remote presentation site is provided in the embodiment of the present invention; the process includes:
  • the MCU receives the attribute information of the telepresence site sent by the remote presentation site; wherein the telepresence site includes at least two video regions;
  • the video area of the site can be understood as: the remote presentation site passes the site area captured by the at least two cameras; the site area captured by each camera may be referred to as one of the sites, for example: The three conference venues, the three screens, and the three cameras; the video area captured by the camera can be used to perform a multimedia conference through the venue terminal and the conference terminal corresponding to the remote end, and the screen 1 can display the remote corresponding video.
  • Video information of the area; the video area 2 captured by the camera 2 can perform a multimedia conference through the site terminal corresponding to the remote end, and the screen 2 can display the video information of the video area corresponding to the far end, and so on.
  • the video area of the site can be understood as follows: The entire telepresence site is captured by a high-resolution camera, and the entire site of the captured site is divided into at least two video regions, for example: according to preset coordinates or images. The size of the entire site is divided into video areas.
  • the remote presentation site includes: three site terminals, a screen, and a camera.
  • the screen can be divided into three areas according to the number of the site terminals.
  • the camera is also According to the number of the site terminals, the camera can be divided into three areas, and the area captured by the camera is processed by the site terminal to be sent to the corresponding terminal of the remote site, and the camera is captured.
  • the area 2 is sent to the corresponding terminal of the remote site through the stream processing of the terminal 2, and so on.
  • the screen is used to display the corresponding video area of the remote site in its corresponding screen area.
  • attribute information of each site can be understood as follows:
  • the local MCU can receive the site attribute information reported by each site under the control of the local MCU, and can also receive the level sent by the MCU cascaded with the local MCU. Attribute information of each site under the control of the MCU.
  • the local MCU determines the number of cascade channels between the cascaded multipoint control units according to the attribute information of the received telepresence site. , establish a corresponding number of cascade channels.
  • the local MCU When the local MCU needs to perform code stream interaction with the cascading MCU, after receiving the attribute information of the site under its control, the local MCU sends the attribute information of the local MCU site to the level through the established cascading channel. Connected MCUs, so that each cascaded MCU performs code stream interaction.
  • the MCU stores the attribute information of the received telepresence site as a basis for the conference control; for example, a video stream configuration policy for each site of the subsequent MCU, for example, the B site needs to perform a video session with the A site;
  • the B site is a two-screen remote presentation site.
  • the A site is a 4-screen remote presentation site.
  • the MCU can combine the four images of the A site into two streams according to the site attribute information sent by the site B. B.
  • the local MCU can also send the attribute information of the supported site to its cascading MCU.
  • the local MCU exchanges with the cascading MCU and records the peer.
  • the attribute information of the site of the MCU is used as the basis for the conference control.
  • the MCU identifies the site according to the attribute information of each site; for example, the MCU identifies, according to the attribute information, whether the site is an ordinary site or a remote presentation site, and if the remote presentation site is further configured according to the attribute information, Identify the type of telepresence site as the basis for image interworking.
  • the MCU can also determine the number of cascading channels between the cascading MCUs according to the attribute information of the respective sites when the conferences that include the telepresence site need to cross the multipoint control unit. For example, a conference requires a multimedia video conference to be performed between two MCUs of the MCU1 and the MCU2.
  • the maximum number of video regions in a single telepresence site attribute information in the multimedia video conference is 3, Establishing three cascading channels for the multimedia video conference between the MCU 1 and the MCU 2; of course, determining the number of cascading channels according to other information in the attribute information of the site, for example, remotely presenting the video area of the site according to the MCU 1 The number determines the number of cascaded channels.
  • the MCU sends the attribute information of each site to each site in the telepresence conference. Telepresencing the venue and the ordinary venue.
  • a capability negotiation process in a conference control method including a remote presentation site is provided in the embodiment of the present invention, where the process includes:
  • the site terminal sends the attribute information of the site to negotiate with the other site or the local MCU for the capability of the site.
  • the specific case is divided into two cases: One case: when the conference including the remote presentation site is a peer-to-peer conference The local site terminal sends its own attribute information to the peer site terminal; and the site terminal of the peer site performs the capability negotiation of the site according to the attribute information of the received site terminal, and returns the capability negotiation result to the local site.
  • the other case is: when the conference that includes the telepresence site is a multipoint conference, when the conference terminal sends its own attribute information to the local MCU, the local MCU according to the received site attribute information. The type and capability information of the site are identified, and the capability negotiation result is given. Then, the MCU sends the capability negotiation result to the site terminal.
  • the site terminal receives the capability negotiation result of the site.
  • the capability negotiation result includes at least: attribute information of the site.
  • the attribute information of the remote presentation site includes: the type of the site, the video zone information of the site, the code stream attribute corresponding to the video zone of the site, the site terminal number corresponding to the video zone of the site, the video zone of the site, the code stream, and the site terminal.
  • the site terminal parses the capability negotiation result of the site; specifically, the attribute information of the site in the negotiation result is parsed, and then the received remote presentation sites are stored. Attribute information.
  • the site cannot parse the received capability negotiation result, the capability negotiation result may be discarded and not parsed.
  • the site terminal identifies each remote presentation site according to the attribute information of each remote presentation site; the identifier facilitates the user to identify the attributes and types of each site, thereby facilitating operations.
  • the site terminal displays the identifiers of the remote presentation sites. Specifically, the site terminal can display the attribute information of the site to facilitate the user to perform site control.
  • the conference control step is performed according to the attribute information of the received remote presentation site.
  • the step further includes:
  • the local MCU receives the conference control request message that is sent by the site terminal and carries the code stream information.
  • the code stream information includes: the code stream information of the live-size image of the remote presentation site, and the panoramic image of the remote presentation site.
  • the conference control request message includes: a remote presentation screen switching request message and/or a remote presentation screen multi-screen request message;
  • the MCU may determine the type of the request message and the site screen information and the selected site information of the request message according to the content of the remote presentation screen switching request message.
  • the site screen information includes: a screen number, a screen data length, and a screen number.
  • the selected site information includes: a selected site number and a code stream number of the selected site.
  • the message type of the telepresence screen switching request message is selected, and the number of screens is three, wherein the screen 1 has a data length of X, the screen number is 1; the selected site is M, and the site code stream is selected.
  • the number is 01.
  • the MCU may determine, according to the attribute information of the remote presentation site, whether the site where the remote presentation site is selected as the site of the M site is a site controlled by the local MCU, and if the site is controlled by the local MCU, According to The selected site number M and the selected site code stream number 01 are used to obtain the corresponding code stream; if the local site is used, the corresponding code stream can be obtained from the cascaded MCU through the cascade channel.
  • the remote presentation screen switching request message includes: at least one of the code stream type number information of the remote presentation site, the multi-screen indication information, and the code stream type number information of the common site; or any combination thereof;
  • the specific content of the presentation screen switching request message is as shown in Table 1 below.
  • the telepresence screen multi-screen request message includes at least: a type of the request message, a number of screens, a data length of each screen, a number of each screen, a multi-screen type selected for each screen, and each One of the code stream numbers corresponding to each sub-screen in the screen; the specific content of the telepresence screen multi-screen request message is as shown in Table 1 below.
  • the MCU After the MCU receives the remote presentation screen switching request message or the remote presentation screen multi-screen request message, the MCU returns a remote presentation screen switching response message or returns to the remote rendering screen according to the parsing result thereof. Multi-screen response message.
  • +6B is selected site code stream number
  • + ⁇ B is selected site code stream number
  • the multi-screen type is set to watch or broadcast or name
  • +6 B multi-screen sub-screen 1 corresponds to the code stream, which means that the multi-screen is set first, then the venue M number
  • + ⁇ B is set to multi-screen type
  • Multi-screen identification of the operation (such as a special MT number, or a multi-screen group number)
  • + ⁇ B screen n number + ⁇ B is the multi-screen identifier that is operated (such as a special MT number, or a multi-screen group number)
  • the multi-screen indication flag may be added to the remote presentation screen switching request and response message, for example: when the selected site M number is 0, it may indicate The site is multi-screen, but the specific display of each multi-screen cannot be indicated. Therefore, the telepresence screen multi-screen request and response message is required to set the respective screen display conditions of the multi-screen.
  • the remote presentation screen switching request and response message may be modified into a cascade channel number if the local MCU is sent to the cascade MCU;
  • the extension field following the stream number indicates the cascade channel number.
  • the step of performing conference control according to the attribute information of the received remote presentation site further includes: remotely presenting according to the received remote presentation, when the conference that includes the remote presentation site needs to cross the multi-point control unit
  • the attribute information of the site determines the number of cascade channels between the cascaded multipoint control units, and establishes a corresponding number of cascade channels;
  • the step 402 may further include:
  • the multi-channel image switching message includes: the cascading channel number, the switched site number, the code stream encoding of the switched site, and the channel operation type information.
  • the method may further include:
  • the obtained code stream does not need to be combined with the code stream, the obtained code stream is sent to the requesting site.
  • a multi-point control unit is provided in the embodiment of the present invention.
  • the unit includes: an information receiving module 501, configured to receive attribute information of the remote presentation site sent by a remote presentation site;
  • the telepresence site includes at least two video regions;
  • the conference control module 502 is configured to perform conference control according to the attribute information of the received remote presentation site.
  • the conference control module 502 may include:
  • An information storage submodule configured to store attribute information of the received telepresence site as a basis for conference control
  • An information identifying sub-module configured to identify each of the sites according to the attribute information of each site
  • the information is sent to the sub-module, and the attribute information of each site is sent to each site in the telepresence conference.
  • the conference control module 502 may further include:
  • the request message receiving sub-module is configured to receive the conference control request message carrying the code stream information, where the code stream information includes: a code stream information of a live-size image of the remote presentation site, and a code stream of the panoramic image of the remote presentation site The information, the code stream information of the film of the remote presentation site, the primary code stream information of the ordinary site, and the auxiliary code stream information of the ordinary site; or any combination thereof;
  • a request message parsing sub-module configured to parse the conference control request message according to the attribute information of the telepresence site
  • the code stream processing sub-module is configured to perform corresponding code stream processing according to the conference control request message. It is to be noted that when the conference that includes the telepresence site needs to cross the multipoint control unit, the conference control module further includes: The cascading channel establishing sub-module is configured to determine the number of cascading channels between the cascading multi-point control units according to the attribute information of the received telepresence site, and establish a corresponding number of cascading channels.
  • the code stream processing sub-module may further include: when the code stream information is carried in the conference control request message, where the code stream information is the site code stream information controlled by the cascading multi-point control unit, the code stream processing sub-module may further include:
  • a message sending sub-module configured to send, according to the conference control request message, an image switching request message carrying code stream information to the cascade multi-point control unit;
  • a code stream acquisition sub-module configured to acquire, by using the cascade channel, a corresponding code stream of the cascade multi-point control unit.
  • code stream processing submodule may further include:
  • a parsing module configured to parse, according to the conference control request message, whether the obtained code stream needs to perform a code stream combination
  • a code stream combination processing sub-module configured to perform a code stream combination process if the code stream to be obtained is required to be combined, and send the processed combined code stream to the requesting site;
  • the code stream is sent to the requesting site, if the obtained code stream does not need to be combined with the code stream, the obtained code stream is sent to the requesting site.
  • a site terminal is provided in the embodiment of the present invention.
  • the site terminal includes: an information sending module 601, configured to send attribute information of a remote presentation site; wherein the remote presentation site includes at least two videos. Area
  • the information receiving module 602 is configured to receive attribute information of each remote presentation site delivered by the multi-point control unit.
  • site terminal may further include:
  • the information storage module is configured to store the attribute information of each of the received remote presentation sites;
  • the site identification module is configured to identify the remote presentation sites according to the attribute information of each remote presentation site;
  • the site identifier display module is configured to display the identifiers of the remote telepresence sites.
  • the site terminal may further include:
  • the request message sending module is configured to send a conference control request message carrying the code stream information, where the code stream information includes: a code stream information of a live-size image of the remote presentation site, and a code stream information of the panoramic image of the remote presentation site And one of the code stream information of the film of the remote presentation site, the primary code stream information of the ordinary site, and the auxiliary code stream information of the ordinary site; or any combination thereof;
  • the code stream receiving module is configured to receive the code stream sent by the multi-point control unit according to the conference control request message.
  • a conference control system including a telepresence conference site is provided in the embodiment of the present invention, where the system includes: at least one conference terminal and at least one multipoint control unit;
  • the site terminal is configured to send attribute information of the remote presentation site to the multi-point control unit, and receive attribute information of each remote presentation site delivered by the multi-point control unit; wherein, the remote presentation site Including at least two video regions;
  • the multi-point control unit is configured to receive attribute information of the remote presentation site sent by the remote presentation site terminal, and perform conference control according to the attribute information of the received remote presentation site.
  • the venue terminal includes:
  • An information sending module configured to send attribute information of the remote presentation site, where the remote presentation site includes at least two video regions;
  • an information receiving module configured to receive attribute information of each of the remote presentation sites delivered by the multipoint control unit.
  • the multipoint control unit includes:
  • An information receiving module configured to receive attribute information of the remote presentation site sent by the remote presentation site; wherein the remote presentation site includes at least two video regions;
  • the conference control module is configured to perform conference control according to the attribute information of the received remote presentation site.
  • the control flow of the conference control system including the remote presentation site provided by the embodiment of the present invention is specifically described below through three specific scenarios.
  • the control flow of the conference control system ; the following is an example of remotely presenting the image of the telepresence conference by remotely presenting the conference site 1 and the remote presentation site 2, 3, and 4, and setting the telepresence screen switching request message sent by the remote presentation site 1 under the control of the MCU1.
  • the specific process is as follows:
  • the MCU1 receives the telepresence screen switching request message sent by the telepresence site 1; the message is as follows:
  • +6 B is selected site code stream number
  • + ⁇ B is selected site code stream number
  • the MCU1 obtains a corresponding code stream according to the code stream information in the received remote presentation screen switching request message.
  • the process of obtaining the corresponding code stream is as follows:
  • the MCU1 determines that the remote conference site 2 is a remote presentation site under its own control, and the remote presentation site 3, 4 is a telepresence conference site under the control of the MCU2 that is cascaded with the MCU1;
  • the MCU1 acquires the second code stream of the remote site
  • the MCU1 acquires the 3, 4 code stream of the remote site; the process of obtaining the 3, 4 code stream of the remote site is: MCU1 sends a telepresence screen switching request message carrying the 3, 4 code stream information of the telepresence site to the MCU 2; After the MCU 2 receives the telepresence screen switching request message, Transmitting the code stream of the corresponding telepresence conference site 3, 4 to the MCU1 according to the 3, 4 code stream information of the remote presentation site carried therein;
  • the MCU1 performs a conference control process on the remote presentation site 2, 3, and 4 code streams according to the remote presentation screen switching request message sent by the remote presentation site 1 to implement the remote presentation site 1 and the remote presentation site 2 , 3, 4 remote meetings.
  • the control flow of the conference control system of the telepresence conference between the ordinary conference site and the telepresence conference site is performed in the embodiment of the present invention; the telepresence conference is performed in the ordinary conference venue and the remote presentation conference site 1, 2, and 3
  • the image switching is an example.
  • the ordinary site under the control of the MCU2 is sent to the remote presentation screen multi-screen request message.
  • the specific process is as follows:
  • the MCU2 receives the telepresence screen multi-screen request message sent by the ordinary site; the message is as shown in the following table:
  • + ⁇ B is selected for multi-screen type
  • the MCU 2 obtains a corresponding code stream according to the code stream information in the received remote presentation screen multi-screen request message.
  • the process of obtaining the corresponding code stream is as follows:
  • the MCU 2 determines that the remote conference site 3 is a remote presentation site under its own control, and the remote presentation site 1 and 2 are remote presentation sites under the control of the MCU1 cascaded with the MCU 2;
  • the MCU2 acquires the 3 code stream of the remote site
  • the MCU2 acquires the remote site 1 and 2 code streams; the process of acquiring the remote site 1 and 2 code streams is: MCU2 sends a telepresence screen multi-screen request message carrying the telepresence site 1 and 2 code stream information to the MCU1 After the MCU1 receives the telepresence screen multi-screen request message, according to the remote presentation site 1 and 2 code stream information carried therein, the code stream of the corresponding telepresence site 1 and 2 is sent to the MCU 2;
  • the MCU 2 processes the remote presentation site 1, 2, and 3 code streams according to the remote presentation screen multi-screen request message sent by the common site, so as to implement the common conference site and the remote presentation site 1, 2, 3 Teleconferencing.
  • the control flow of the conference control system of the telepresence conference between the conference sites under the control of the cascade MCU is performed according to the embodiment of the present invention; the multi-layer cascade telepresence conference site 11 and the remote presentation conference site 12, 21
  • the image switching of the telepresence conference is performed by the ordinary conference site 22
  • the multi-channel image switching message between the cascaded MCUs sent by the remote presentation site 11 under the control of the MCU1 is set as follows.
  • the MCU1 receives the multi-channel image switching message between the cascaded MCUs sent by the telepresence site 11; the message is as follows: Message ID message description message content xxxxxxx +0 B channel number between cascaded MCUs;
  • Multi-channel image cut +1 B is switched to the M number of the venue
  • the MCU1 obtains a corresponding code stream according to the code stream information in the multi-channel image switching message between the received cascaded MCUs.
  • the process of obtaining the corresponding code stream is as follows:
  • the MCU 1 determines that the remote site 12 is a remote presentation site under its own control, and the remote presentation site 21 and the common site 22 are remotely presented under MCU2 control under the MCU0 connected in cascade with the MCU1;
  • the MCU1 acquires 12 streams of the remote site
  • the MCU1 obtains the 22-stream of the remote site 21 and the common site; the process of acquiring the remote site 21 and the normal site 22 code stream is: MCU1 sends a multi-channel image switching message carrying the telepresence site 3, 4 code stream information The MCU0, the MCUO sends the multi-channel image switching message to the MCU2, and after receiving the multi-channel image switching message, the MCU2, according to the code stream information of the remote presentation site 21 and the ordinary site 22 carried therein, The code stream of the telepresence site 21 and the ordinary site 22 is sent to the MCU1 via the MCUO;
  • the MCU1 processes the remote presentation site 12, 21 and the normal site 22 code stream according to the multi-channel image switching message sent by the remote presentation site 11, thereby implementing the remote presentation site 11 and the remote presentation site 12, 21 and the remote meeting of the general venue 22.
  • a method, a device, and a system for controlling a conference, including a telepresence conference site, are provided by the embodiment of the present invention.
  • the site information is automatically sent to the MCU through the site, and the capability negotiation process of the site is performed.
  • the automatic completion without manual configuration, saves a lot of labor costs; and the local MCU can also send the attribute information of all the received sites to the site under its control, so that each site can flexibly conduct the site.
  • multimedia conferences can be performed between remote presentation sites under one MCU, and multimedia conferences can be performed between remote presentation sites of multiple MCUs.
  • the embodiment of the present invention can also perform the code stream interaction of the panoramic image and the film by remotely presenting the screen switching request and the response message. If it is an ordinary venue, the main stream can be performed by remotely presenting the screen switching request and the response message. Auxiliary code stream interaction.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
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Description

一种包^ ^呈现会场的 义控制方法、 装置及系统 本申请要求于 2009 年 11 月 30 日提交中国专利局、 申请号为 200910205982.7 , 发明名称为"一种包含远程呈现会场的会议控制方法、 装置 及系统"的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及网络通信技术领域, 尤其涉及一种包含远程呈现会场的会议 控制方法、 装置及系统。 背景技术
目前, 远程呈现会场互通主要指的是一个 MCU ( Multipoint Control Unit, 多点控制单元)控制下的多个远程呈现会场进行的多媒体会议。 其中, 所述 多个远程呈现会场进行远程呈现会议的控制方案包括: 一种声控切换方案, 该方案将声音最大的远程呈现会场所有屏幕都广播给其他会场, 或者将声音 最大的远程呈现会场选定的屏幕图像广播给其他远程呈现会场, 并在其他远 程呈现会场对应的屏幕上显示; 另一种为真人大小图像传送方案, 该方案中 的各个远程呈现会场通过发送本地的真人大小图像给其他远程呈现会场来实 现多媒体会议。 该方案的具体实现过程为: 当各个远程呈现会场接收到其他 多个远程呈现会场的真人大小的图像时, 首先可以将第一个接收到的真人大 小图像显示在整个屏幕上, 然后将之后接收到的其他远程呈现会场的真人图 像缩小后叠加到屏幕的下面, 这样可以同时看到多个远程呈现会场的图像; 再一种方案为全景图像传送方案, 该方案通过调整每个远程呈现会场的主摄 像机, 从而获取会场的全景图像, 然后把该全景图像传送给远端的其他远程 呈现会场, 远端的远程呈现会场的不同屏幕可以看到不同的远程呈现会场的 全景图像, 这样可以同时看到多个远程呈现会场。 在实现上述真人大小图像 传送方案和全景图像传送方案的过程中, 如果接收到真人大小图像的会场为 普通会场时, 则该普通会场采用多画面的方式与远程呈现会场进行多媒体会 议; 如果接收到全景图像的会场为普通会场时, 则普通会场将接收到的多个 会场图像的码流进行合并, 直接观看所述合并后的远程呈现会场的全景图像。
在实现本发明的过程中, 发明人发现现有技术中至少存在如下问题: 现 有技术的多媒体会议在进行会议控制的过程, 各个需要通信的远程呈现会场 的属性信息需要会议召集人进行预先配置, 这样使得整个会议控制过程较繁 瑣, 且人力成本较高。 发明内容
本发明实施例提供了一种包含远程呈现会场的会议控制方法、 装置和系 统。 本发明的实施例采用如下技术方案:
一方面, 本发明实施例提供了一种包含远程呈现会场的会议控制方法, 该方法包括:
接收远程呈现会场发送的所述远程呈现会场的属性信息; 其中, 所述远 程呈现会场包括至少两个视频区域;
根据所述接收的远程呈现会场的属性信息, 进行会议控制。
另一方面, 本发明实施例还提供了一种多点控制单元, 该单元包括: 信息接收模块, 用于接收远程呈现会场发送的所述远程呈现会场的属性 信息; 其中, 所述远程呈现会场包括至少两个视频区域;
会议控制模块, 用于根据所述接收的远程呈现会场的属性信息, 进行会 议控制。
另一方面, 本发明实施例还提供了一种会场终端, 该会场终端包括: 信息发送模块, 用于发送远程呈现会场的属性信息; 其中, 所述远程呈 现会场包括至少两个视频区域;
信息接收模块, 用于接收所述多点控制单元所下发的所述各个远程呈现 会场的属性信息。 再一方面, 本发明实施例还提供了一种包含远程呈现会场的会议控制系 统, 该系统包括:
至少一个会场终端和至少一个多点控制单元;
所述会场终端, 用于发送远程呈现会场的属性信息, 接收所述多点控制 单元所下发的所述各个远程呈现会场的属性信息; 其中, 所述远程呈现会场 包括至少两个视频区域;
所述多点控制单元, 用于接收远程呈现会场发送的所述远程呈现会场的 属性信息, 并根据所述接收的远程呈现会场的属性信息, 进行会议控制。 一方面可以通过会场自动将其属性信息发送给多点控制单元 MCU, 进行会场 的能力协商, 从而使得各个会场的能力协商过程可以自动的完成, 无需人工 进行配置, 节省了大量的人力成本。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种包含远程呈现会场的会议控制方法流程 图;
图 2为本发明实施例提供的一种包含远程呈现会场的会议控制方法的实 现流程图;
图 3为本发明实施例提供的一种包含远程呈现会场的会议控制方法中的 能力协商过程流程图;
图 4为本发明实施例提供的一种包含远程呈现会场的会议控制方法中根 据所述接收的远程呈现会场的属性信息, 进行会议控制步骤流程图; 图 5为本发明实施例提供的一种多点控制单元结构示意图; 图 6为本发明实施例提供的一种会场终端结构示意图;
图 7为本发明实施例提供的一种包含远程呈现会场的会议控制系统结构 示意图;
图 8为本发明实施例提供的一种包含远程呈现会场的会议控制系统结构 示意图;
图 9为本发明实施例在普通会场与远程呈现会场之间进行的远程呈现会 议的会议控制系统的控制流程图;
图 10为本发明实施例在级联 MCU控制下的会场之间进行的远程呈现会 议的会议控制系统的控制流程图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
如图 1 所示, 为本发明实施例提供的一种包含远程呈现会场的会议控制 方法, 该方法包括:
101 : MCU接收远程呈现会场发送的所述远程呈现会场的属性信息; 其 中, 所述远程呈现会场包括至少两个视频区域; 所述远程呈现会场的属性信 息包括: 会场的类型, 会场的视频区域信息, 会场的视频区域对应的码流属 性、 会场的视频区域对应的会场终端号码, 会场的视频区域、 码流和会场终 端的对应关系, 本地会场的视频区域和码流与远程呈现会场互通的对应关系, 以及本地会场的视频区域和码流与普通会场互通的对应关系中的一种或者其 任意组合。
102: 根据所述接收的远程呈现会场的属性信息, MCU进行会议控制。 需要注意的是, 当包含远程呈现会场的会议需要跨多点控制单元时, 该 该步骤可以根据所述接收的远程呈现会场的属性信息, 确定级联多点控制单 元之间的级联通道的数目, 建立相应数目的级联通道。
如图 2所示, 为本发明实施例提供的一种包含远程呈现会场的会议控制 方法的实现流程; 该流程包括:
201 : MCU接收远程呈现会场发送的所述远程呈现会场的属性信息; 其 中, 所述远程呈现会场包括至少两个视频区域;
以上所述会场的视频区域可以理解为: 远程呈现会场通过至少两个摄像 头所拍摄的会场区域; 每个摄像头所拍摄的会场区域可以称为所述会场的一 例如: 设所述远程呈现会场包括: 三个会场终端、 三个屏幕和三个摄像头; 摄像头一所拍摄的视频区域一可以通过会场终端一与远端对应的会场终端进 行多媒体会议, 所述屏幕一可以显示所述远端对应视频区域的视频信息; 摄 像头二所拍摄的视频区域二可以通过会场终端二与远端对应的会场终端进行 多媒体会议, 所述屏幕二可以显示所述远端对应视频区域的视频信息, 依次 类推。 以上所述会场的视频区域还可以理解为: 采用一个高分辨率摄像头拍 摄整个远程呈现会场, 将所述拍摄的整个会场的区域划分为至少两个视频区 域, 例如: 可以按照预设坐标或图像尺寸将整个会场的区域进行视频划分; 所述远程呈现会场包括: 三个会场终端、 一个屏幕和一个摄像头, 所述的屏 幕按照会场终端的个数可以分为三个区域, 所述的摄像头也可以相应的按照 会场终端的个数划分为三个区域, 将所述摄像头所拍摄到的区域一通过会场 终端一进行码流处理后发送到远端会场的对应终端, 将所述摄像头所拍摄到 的区域二通过会场终端二进行码流处理后发送到远端会场的对应终端, 依次 类推; 所述屏幕用于将所述远端会场的相应视频区域显示在其相应的屏幕区 域。 需要注意的是, 所述接收到各个会场的属性信息可以理解为: 本地 MCU 既接收本地 MCU控制下各个会场上报的会场属性信息,还可以接收与所述本 地 MCU级联的 MCU发送过来的级联 MCU控制下的各个会场的属性信息。
还需要注意的是, 当包含远程呈现会场的会议需要跨多点控制单元时, 本地 MCU根据所述接收的远程呈现会场的属性信息,确定级联多点控制单元 之间的级联通道的数目, 建立相应数目的级联通道。
当所述本地 MCU需要与级联 MCU进行码流交互时, 本地 MCU接收到 其控制下会场的属性信息之后,会将其本地 MCU会场的属性信息通过所述建 立的级联通道发送给与其级联的 MCU, 以便各个级联 MCU进行码流交互。
202: MCU存储所述接收的远程呈现会场的属性信息, 作为会议控制的 依据; 例如: 用于后续 MCU的对各个会场的视频流配置策略, 比如 B会场 需要与 A会场进行视频会话; 其中, B会场为 2屏远程呈现会场, A会场为 4屏的远程呈现会场, 则 MCU就可以根据所述 、 B会场发送的会场属性信 息, 将 A会场的四个图像组合成两路码流发送给 B。
需要注意的是, 在远程呈现会议的 MCU之间呼叫过程时, 本地 MCU还 可以将其所支持会场的属性信息发送给其级联 MCU; 所述本地 MCU与其级 联 MCU双方交换并记录对端的 MCU的会场的属性信息, 作为会议控制的依 据。
203: 根据所述各个会场的属性信息, MCU识别所述各个会场; 例如: MCU根据所述属性信息识别所述会场是普通会场还是远程呈现会场, 如果是 远程呈现会场还可以根据其属性信息进一步识别其远程呈现会场的类型, 作 为图像互通的依据。
需要注意的是,当包含远程呈现会场的会议需要跨多点控制单元时, MCU 还可以根据所述各个会场的属性信息, 确定级联 MCU之间的级联通道的数 目。例如: 一个会议需要跨 MCU1和 MCU2两个 MCU进行多媒体视频会议, 所述多媒体视频会议中单个远程呈现会场属性信息中视频区域数最大是 3,则 在 MCU1和 MCU2之间为所述多媒体视频会议建立 3个级联通道; 当然, 也 可以根据所述会场的属性信息中的其他信息确定级联通道数,比如根据 MCU1 上远程呈现会场的视频区域数确定级联通道数。
204: MCU 下发所述各个会场的属性信息给所述远程呈现会议中各个会 场。 远程呈现会场和普通会场。
如图 3 所示, 为本发明实施例提供的一种包含远程呈现会场的会议控制 方法中的能力协商过程, 该过程包括:
301 : 会场终端发送所述会场的属性信息, 与其他会场或者本地 MCU进 行会场的能力协商; 具体的讲分两种情况: 一种情况为: 当所述包含远程呈 现会场的会议为点对点会议时, 所述本地会场终端发送其本身的属性信息给 对端会场终端; 进而所述对端会场的会场终端根据接收到的会场终端的属性 信息进行会场的能力协商, 并返回能力协商结果给本地会场终端; 另一种情 况为: 当所述包含远程呈现会场的会议为多点会议时, 当所述会场终端将其 自身的属性信息发送给本地 MCU, 本地 MCU根据所述接收到的会场属性信 息对所述会场进行类型以及能力信息识别, 给出能力协商结果; 然后, MCU 将所述能力协商结果下发给会场终端。
302: 会场终端接收所述会场的能力协商结果; 所述能力协商结果至少包 括: 所述会场的属性信息。 所述远程呈现会场的属性信息包括: 会场的类型, 会场的视频区域信息, 会场的视频区域对应的码流属性、 会场的视频区域对 应的会场终端号码, 会场的视频区域、 码流和会场终端的对应关系, 本地会 场的视频区域和码流与远程呈现会场互通的对应关系, 以及本地会场的视频 区域和码流与普通会场互通的对应关系中的一种或者其任意组合。
303: 会场终端解析所述会场的能力协商结果; 具体的讲, 就是解析出所 述协商结果中的会场的属性信息, 然后存储所述接收到的各个远程呈现会场 的属性信息。
需要说明的是, 如果所述会场无法解析所述接收到的能力协商结果, 则 可以选择丟弃所述能力协商结果, 不对其进行解析。
304: 会场终端根据所述各个远程呈现会场的属性信息, 对所述各个远程 呈现会场进行标识; 该标识便于用户识别各个会场的属性以及类型, 从而方 便操作。
305: 会场终端显示所述各个远程呈现会场的标识。 具体的讲, 就是会场 终端可以通过显示所述会场的属性信息, 方便用户进行会场控制。
如图 4所示, 为本发明实施例提供的一种包含远程呈现会场的会议控制 方法中根据所述接收的远程呈现会场的属性信息, 进行会议控制步骤; 该步 骤还包括:
401 : 本地 MCU接收所述会场终端发送的携带有码流信息的会控请求消 息; 其中, 所述码流信息包括: 远程呈现会场的真人大小图像的码流信息、 远程呈现会场的全景图像的码流信息、 远程呈现会场的胶片的码流信息、 普 通会场的主码流信息和普通会场的辅码流信息中的一种或者其任意组合;
402: 根据所述远程呈现会场的属性信息,解析所述会控请求消息; 其中, 所述会控请求消息包括: 远程呈现屏幕切换请求消息和 /或远程呈现屏幕多画 面请求消息;当解析所述会控请求消息为远程呈现屏幕切换请求消息时, MCU 则可以根据所述远程呈现屏幕切换请求消息内容来判断该请求消息的类型以 及发送该请求消息的会场屏幕信息和被选会场信息。 其中, 所述会场屏幕信 息包括: 屏幕数量、 屏幕数据长度和屏幕编号; 所述被选会场信息包括: 被 选会场编号和被选会场的码流编号。 例如: 设所述远程呈现屏幕切换请求消 息的消息类型为选看, 屏幕数量为 3个, 其中, 屏幕 1数据长度为 X, 屏幕 编号为 1 ; 被选会场为 M号, 被选择会场码流编号为 01 ; 则 MCU可以根据 所述远程呈现会场的属性信息, 判断所述远程呈现会场被选会场为 M号的会 场是否为本地 MCU所控制的会场, 如果是本地 MCU控制下的会场, 则根据 所述被选会场号 M, 以及被选会场码流编号 01 获取相应的码流; 如果本地 的会场, 则可以通过级联通道从级联 MCU上获取相应的码流。
其中, 所述的远程呈现屏幕切换请求消息至少包括: 远程呈现会场的码 流类型编号信息、 多画面指示信息和普通会场的码流类型编号信息中的一种 或者其任意组合; 所述的远程呈现屏幕切换请求消息的具体内容如下表一所 示。
所述的远程呈现屏幕多画面请求消息至少包括: 所述请求消息的类型、 屏幕的数量, 每个屏幕的数据长度、 每个屏幕的编号、 每个屏幕被选看的多 画面类型、 每个屏幕中各个子画面对应的码流编号中的一种; 所述的远程呈 现屏幕多画面请求消息的具体内容如下表一所示。
需要说明的是,当所述 MCU接收到所述的远程呈现屏幕切换请求消息或 者远程呈现屏幕多画面请求消息后, MCU会根据其解析结果相应的返回远程 呈现屏幕切换响应消息或者返回远程呈现屏幕多画面响应消息。
以上所述的远程呈现屏幕切换请求及响应消息和远程呈现屏幕多画面请 求及响应消息的具体内容如下表一所示:
Figure imgf000011_0001
+6B 被选择会场码流编号
+〜B 屏幕 n数据长度
+〜B 屏幕 n编号
+〜 B 被选择会场 M号
+〜 B 被选择会场 T号
+〜B 被选择会场码流编号
xxxxxxx远程呈现屏幕切换响应消 +0B屏幕数量:
息 +1 B屏幕 1数据长度
+2B屏幕 1结果: (0: 成功; 1: 失 败)
+3 DW屏幕 1失败原因 ID
+〜B屏幕 n数据长度
+〜B屏幕 n结果: (0: 成功; 1: 失 败)
+〜 DW屏幕 n失败原因 ID xxxxxxx远程呈现屏幕多画面请求 +0B 请求类型(0: 设置; 1: 选看; 消息 2: 广播; 3: 点名)
备注: 该消息的请求类型 +1 B 屏幕数量
如果仅是设置, 则不对当 +2 B 屏幕 1数据长度
前观看的视频切换影响; +3 B 屏幕 1编号
如果该消息的请求类型为 +4B 被设置的多画面类型 选看或者广播或者点名, +6 B 多画面子画面 1的码流对应的 则表示先设置多画面, 然会场 M号
后在进行相关请求的视频 +7 B 多画面子画面 1的码流对应的 切换操作, 比如选看多画会场 T号
面, 则在对应的屏幕上观 +8B 多画面子画面 1的码流编号 看设置的多画面。 +9 B 多画面子画面 2的码流对应的 会场 M号
+〜B 屏幕 n数据长度
+〜B 屏幕 n编号
+〜B被设置的多画面类型
+〜 B 多画面子画面 1的码流对应的 会场 M号
+〜 B 多画面子画面 1的码流对应的 会场 T号
+〜B 多画面子画面 1的码流编号 +〜 B 多画面子画面 2的码流对应的 会场 M号 xxxxxxx远程呈现屏幕多画面请求 +0B 请求类型(0: 选看; 1: 广播; 消息 2: 点名 )
备注: 简化多画面的操作 +1 B 屏幕数量
请求消息, 该消息不包括 +2 B 屏幕 1数据长度
设置操作。 +3 B 屏幕 1编号
+4 B 被操作的多画面标识 (比如特 殊的 MT号, 或者多画面的组号)
+〜B 屏幕 n数据长度
+〜B 屏幕 n编号 +〜 B被操作的多画面标识 (比如特 殊的 M T号, 或者多画面的组号)
xxxxxxx远程呈现屏幕多画面响应 +0 B屏幕数量:
消息 +1 B屏幕 1数据长度
+2 B屏幕 1结果: (0: 成功; 1 : 失 败)
+3 DW屏幕 1失败原因 ID
+〜 B屏幕 n数据长度
+〜 B屏幕 n结果: (0: 成功; 1 : 失 败)
+〜 DW屏幕 n失败原因 ID 还需要注意的是, 所述的远程呈现屏幕切换请求及响应消息中还可以增 加多画面指示标识, 例如: 所述的被选择会场 M号为 0时, 可以指示该会场 为多画面, 但是不能指示各个多画面的具体显示情况, 这样就需要所述的远 程呈现屏幕多画面请求及响应消息对多画面的各个画面显示情况进行设置。
还需要注意的是, 所述的远程呈现屏幕切换请求及响应消息如果用于本 地 MCU发送给级联 MCU时,其中所述的屏幕编号可以修改为级联通道编号; 还可以通过被选择会场码流编号后续的扩展字段指示所述级联通道编号。
403: 根据所述会控请求消息, 进行相应的码流处理。 例如: 当上述屏幕 编号为 1的屏幕, 对应两个被择选会场, 如被选择会场 M号与被选择会场 T 号,且被选择会场码流编号都为 1时, 本地 MCU首先需要获取到被选择会场 M号的 1号码流与被选择会场 T号的 1的码流; 然后, 本地 MCU将所述获 取到的两路码流进行组合; 最后, 将组合后的码流发送到所述发送会控请求 消息会场的屏幕编号为 1的屏幕。
需要注意的是, 当包含远程呈现会场的会议需要跨多点控制单元时, 所 述根据所述接收的远程呈现会场的属性信息, 进行会议控制的步骤, 还包括: 根据所述接收的远程呈现会场的属性信息, 确定级联多点控制单元之间 的级联通道的数目, 建立相应数目的级联通道;
当所述会控请求消息中携带码流信息为级联多点控制单元控制的会场码 流信息时, 所述步骤 402之后还可以包括:
根据所述会控请求消息, 发送携带有码流信息的图像切换请求消息给所 述级联多点控制单元 MCU; 其中, 所述图像切换请求消息, 至少包括: 级联 多点控制单元之间的多通道图像切换消息; 所述的级联多点控制单元之间的 多通道图像切换消息至少包括: 级联通道编号、 被切换会场编号、 被切换会 场的码流编码、 通道操作类型信息中的一种, 其具体的内容如下表二所示:
Figure imgf000015_0001
Figure imgf000015_0002
通过所述级联通道获取所述级联多点控制单元的相应码流。
还需要注意的是, 当所述会控请求消息中携带码流信息为级联多点控制 单元控制的会场码流信息时, 所述根据所述会控请求消息, 进行相应的码流 处理的步骤 403, 还可以包括:
根据所述会控请求消息, 解析所述获取的码流是否需要进行码流组合; 如果所述获取的码流需要进行码流组合, 则进行码流组合处理, 并将处 理后的组合码流下发给请求会场;
如果所述获取的码流不需要进行码流组合, 则将所述获取的码流下发给 请求会场。
如图 5所示, 为本发明实施例提供的一种多点控制单元, 该单元包括: 信息接收模块 501,用于接收远程呈现会场发送的所述远程呈现会场的属 性信息; 其中, 所述远程呈现会场包括至少两个视频区域;
会议控制模块 502, 用于根据所述接收的远程呈现会场的属性信息, 进行 会议控制。
其中, 所述会议控制模块 502, 可以包括:
信息存储子模块, 用于存储所述接收的远程呈现会场的属性信息, 作为 会议控制的依据;
信息识别子模块, 用于根据所述各个会场的属性信息, 识别所述各个会 场;
信息下发子模块, 用于下发所述各个会场的属性信息给所述远程呈现会 议中各个会场。
所述会议控制模块 502, 还可以包括:
请求消息接收子模块, 用于接收携带有码流信息的会控请求消息; 其中, 所述码流信息包括: 远程呈现会场的真人大小图像的码流信息、 远程呈现会 场的全景图像的码流信息、 远程呈现会场的胶片的码流信息、 普通会场的主 码流信息和普通会场的辅码流信息中的一种或者其任意组合;
请求消息解析子模块, 用于根据所述远程呈现会场的属性信息, 解析所 述会控请求消息;
码流处理子模块, 用于根据所述会控请求消息, 进行相应的码流处理。 需要注意的是, 当包含远程呈现会场的会议需要跨多点控制单元时, 所 述会议控制模块, 还包括: 级联通道建立子模块: 用于根据所述接收的远程呈现会场的属性信息, 确定级联多点控制单元之间的级联通道的数目, 建立相应数目的级联通道。
还需要注意的是, 当所述会控请求消息中携带码流信息为级联多点控制 单元控制的会场码流信息时, 所述码流处理子模块, 还可以包括:
消息发送分模块, 用于根据所述会控请求消息, 发送携带有码流信息的 图像切换请求消息给所述级联多点控制单元;
码流获取分模块, 用于通过所述级联通道获取所述级联多点控制单元的 相应码流。
还需要注意的是, 所述码流处理子模块, 还可以包括:
解析分模块, 用于根据所述会控请求消息, 解析所述获取的码流是否需 要进行码流组合;
码流组合处理分模块, 用于如果所述获取的码流需要进行码流组合, 则 进行码流组合处理, 并将处理后的组合码流下发给请求会场;
码流下发分模块, 用于如果所述获取的码流不需要进行码流组合, 则将 所述获取的码流下发给请求会场。
如图 6所示, 为本发明实施例提供的一种会场终端, 该会场终端包括: 信息发送模块 601, 用于发送远程呈现会场的属性信息; 其中, 所述远程 呈现会场包括至少两个视频区域;
信息接收模块 602,用于接收所述多点控制单元所下发的所述各个远程呈 现会场的属性信息。
需要注意的是, 所述会场终端, 还可以包括:
信息存储模块, 用于存储所述接收到的各个远程呈现会场的属性信息; 会场标识模块, 用于根据所述各个远程呈现会场的属性信息, 对所述各 个远程呈现会场进行标识;
会场标识显示模块, 用于显示所述各个远程呈现会场的标识。
还需要注意的是, 所述会场终端, 还可以包括: 请求消息发送模块, 用于发送携带有码流信息的会控请求消息; 其中, 所述码流信息包括: 远程呈现会场的真人大小图像的码流信息、 远程呈现会 场的全景图像的码流信息、 远程呈现会场的胶片的码流信息、 普通会场的主 码流信息和普通会场的辅码流信息中的一种或者其任意组合;
码流接收模块, 用于根据所述会控请求消息, 接收所述多点控制单元下 发的码流。
如图 7所示, 为本发明实施例提供的一种包含远程呈现会场的会议控制 系统, 该系统包括: 至少一个会场终端和至少一个多点控制单元;
所述会场终端, 用于发送远程呈现会场的属性信息给所述多点控制单元, 接收所述多点控制单元所下发的所述各个远程呈现会场的属性信息; 其中, 所述远程呈现会场包括至少两个视频区域;
所述多点控制单元, 用于接收远程呈现会场终端发送的所述远程呈现会 场的属性信息, 并根据所述接收的远程呈现会场的属性信息, 进行会议控制。
其中, 所述会场终端包括;
信息发送模块, 用于发送远程呈现会场的属性信息; 其中, 所述远程呈 现会场包括至少两个视频区域;
信息接收模块, 用于接收所述多点控制单元所下发的所述各个远程呈现 会场的属性信息。
所述多点控制单元包括:
信息接收模块, 用于接收远程呈现会场发送的所述远程呈现会场的属性 信息; 其中, 所述远程呈现会场包括至少两个视频区域;
会议控制模块, 用于根据所述接收的远程呈现会场的属性信息, 进行会 议控制。
以下通过三种具体的场景, 对本发明实施例提供的一种包含远程呈现会 场的会议控制系统的控制流程进行具体的说明。 的会议控制系统的控制流程; 以下以远程呈现会场 1与远程呈现会场 2、 3、 4 进行远程呈现会议的图像切换为例, 设 MCU1控制下的远程呈现会场 1发送 远程呈现屏幕切换请求消息, 具体流程如下:
801 : MCU1接收远程呈现会场 1发送的远程呈现屏幕切换请求消息; 该 消息如下表所示:
XXXXXXX 远程呈现屏幕 1切 I+0 B 请求类型 (0: 选看; 1 : 广播;
换请求消息 2: 点名 )
+1 B 屏幕数量
+2 B 屏幕 1数据长度
+3 B 屏幕 1编号
+4 B 被选择会场 2号
+5 B 被选择会场 3号
+6 B 被选择会场码流编号
+〜B 屏幕 n数据长度
+〜B 展幕 n编号
+〜 B 被选择会场 4号
+〜B 被选择会场码流编号
802: MCU1根据所述接收到的远程呈现屏幕切换请求消息中的码流信息, 获取相应码流; 其中, 获取相应码流的过程如下:
1 ) MCU1判断出所述远程会场 2为其自身控制下的远程呈现会场, 远程 呈现会场 3、 4为与 MCU1级联的 MCU2控制下的远程呈现会场;
2 ) MCU1获取所述远程会场 2码流;
3 ) MCU1获取所述远程会场 3、 4码流; 所述获取远程会场 3、 4码流过 程为: MCU1发送携带有远程呈现会场 3、 4码流信息的远程呈现屏幕切换请 求消息给 MCU2 ; 当 MCU2接收到所述的远程呈现屏幕切换请求消息之后, 根据其中携带的远程呈现会场 3、 4码流信息, 将相应的远程呈现会场 3、 4 的码流发送给 MCU1 ;
803: MCU1根据所述远程呈现会场 1发送的远程呈现屏幕切换请求消息, 将所述远程呈现会场 2、 3、 4码流进行会控处理, 从而实现远程呈现会场 1 与所述远程呈现会场 2、 3、 4的远程会议。
如图 9所示, 为本发明实施例在普通会场与远程呈现会场之间进行的远 程呈现会议的会议控制系统的控制流程; 以下以普通会场与远程呈现会场 1、 2、 3进行远程呈现会议的图像切换为例, 设 MCU2控制下的普通会场发送远 程呈现屏幕多画面请求消息, 具体流程如下:
901 : MCU2接收普通会场发送的远程呈现屏幕多画面请求消息; 该消息 ^口下表所示:
Figure imgf000020_0001
+〜B被选看的多画面类型
+〜B 多画面子画面 1的 M号
+〜B 多画面子画面 1的 T号
+〜B 多画面子画面 1的码流编号 +〜B 多画面子画面 2的 M号
902: MCU2根据所述接收到的远程呈现屏幕多画面请求消息中的码流信 息, 获取相应码流; 其中, 获取相应码流的过程如下:
1 ) MCU2判断出所述远程会场 3为其自身控制下的远程呈现会场, 远程 呈现会场 1、 2为与 MCU2级联的 MCU1控制下的远程呈现会场;
2 ) MCU2获取所述远程会场 3码流;
3 ) MCU2获取所述远程会场 1、 2码流; 所述获取远程会场 1、 2码流过 程为: MCU2发送携带有远程呈现会场 1、 2码流信息的远程呈现屏幕多画面 请求消息给 MCU1; 当 MCU1接收到所述的远程呈现屏幕多画面请求消息之 后, 根据其中携带的远程呈现会场 1、 2码流信息, 将相应的远程呈现会场 1、 2的码流发送给 MCU2;
903: MCU2根据所述普通会场发送的远程呈现屏幕多画面请求消息, 将 所述远程呈现会场 1、 2、 3码流进行处理, 从而实现普通会场与所述远程呈 现会场 1、 2、 3的远程会议。
如图 10所示, 为本发明实施例在级联 MCU控制下的会场之间进行的远 程呈现会议的会议控制系统的控制流程; 以下以多层级联远程呈现会场 11与 远程呈现会场 12、 21和普通会场 22进行远程呈现会议的图像切换为例, 设 MCU1控制下的远程呈现会场 11发送的级联 MCU之间的多通道图像切换消 息, 具体流程如下
1001 : MCU1接收远程呈现会场 11发送的级联 MCU之间的多通道图像 切换消息; 该消息如下表所示: 消息 ID 消息描述 消息内容 xxxxxxx 级联 MCU之间 +0 B通道号;
的多通道图像切 +1 B 被切换会场的 M号
换消息 +2 B 被切换会场的 T号
+3 B 被切换会场的码流编号
+4 B 操作类型 (0: 选看; 1 : 广播;
2: 点名; 3: 屏幕切换)
1002: MCU1根据所述接收到的级联 MCU之间的多通道图像切换消息中 的码流信息, 获取相应码流; 其中, 获取相应码流的过程如下:
1 ) MCU1判断出所述远程会场 12为其自身控制下的远程呈现会场, 远 程呈现会场 21和普通会场 22为与 MCU1级联共同接连的 MCU0下 MCU2 控制下的远程呈现会场;
2 ) MCU1获取所述远程会场 12码流;
3 ) MCU1获取所述远程会场 21和普通会场 22码流; 所述获取远程会场 21和普通会场 22码流过程为: MCU1发送携带有远程呈现会场 3、 4码流信 息的多通道图像切换消息给 MCU0, MCUO再将所述多通道图像切换消息发 送给 MCU2,当 MCU2接收到所述的多通道图像切换消息之后, 根据其中携带 的远程呈现会场 21和普通会场 22的码流信息, 将相应的远程呈现会场 21和 普通会场 22的码流经 MCUO发送给 MCU1 ;
1003: MCU1根据所述远程呈现会场 11发送的多通道图像切换消息, 将 所述远程呈现会场 12、 21 以及普通会场 22码流进行处理, 从而实现远程呈 现会场 11与所述远程呈现会场 12、 21以及普通会场 22的远程会议。 场景主要分为两种: 一种为每个级联通道只能传输不同会场的一路码流; 另 一种为每个级联通道可以传输相同会场的多路码流。 本发明实施例提供的一种包含远程呈现会场的会议控制方法、 装置和系 统, 一方面可以通过会场自动将其属性信息发送给 MCU, 进行会场的能力协 商, 从而使得各个会场的能力协商过程可以自动的完成, 无需人工进行配置, 节省了大量的人力成本;并且本地 MCU还可以将所述接收到的所有会场的属 性信息, 下发给其控制下的会场, 以便各个会场可以灵活的进行会场控制; 控请求消息中的码流信息, 获取相应的码流; 其中, 所述的码流可以为本地 的码流, 还可以是级联 MCU码流; 然后, 根据所述会控请求消息, 对所述码 流进行会控处理。这样, 不但可以使得一个 MCU下的远程呈现会场之间可以 进行多媒体会议,还可以使得多个 MCU级联的远程呈现会场之间可以进行多 媒体会议。 再一方面, 本发明实施例还可以通过远程呈现屏幕切换请求及响 应消息进行全景图像、 胶片的码流交互, 如果是普通会场, 还可以通过远程 呈现屏幕切换请求及响应消息进行主码流与辅码流交互。
通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本发 明可借助软件加必需的通用硬件平台的方式来实现, 当然也可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方案 本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质中, 包括若干指令用以使得一台计算 机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实 施例所述的方法。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本 发明的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在 本发明保护的范围之内。

Claims

权利要求 书
1、 一种包含远程呈现会场的会议控制方法, 其特征在于, 包括:
接收远程呈现会场发送的所述远程呈现会场的属性信息; 其中, 所述远程 呈现会场包括至少两个视频区域;
根据所述接收的远程呈现会场的属性信息, 进行会议控制。
2、根据权利要求 1所述的包含远程呈现会场的会议控制方法,其特征在于, 所述远程呈现会场的属性信息包括: 会场的类型, 会场的视频区域信息, 会场 的视频区域对应的码流属性、 会场的视频区域对应的会场终端号码, 会场的视 频区域、 码流和会场终端的对应关系, 本地会场的视频区域和码流与远程呈现 会场互通的对应关系, 以及本地会场的视频区域和码流与普通会场互通的对应 关系中的一种或者其任意组合。
3、根据权利要求 2所述的包含远程呈现会场的会议控制方法,其特征在于, 所述根据所述接收的远程呈现会场的属性信息, 进行会议控制的步骤, 包括: 存储所述接收的远程呈现会场的属性信息, 作为会议控制的依据, 和 /或 根据所述各个会场的属性信息, 识别所述各个会场, 和 /或
下发所述各个会场的属性信息给所述远程呈现会议中各个会场。
4、 根据权利要求 2或 3所述的包含远程呈现会场的会议控制方法, 其特征 在于, 所述根据所述接收的远程呈现会场的属性信息, 进行会议控制的步骤, 包括:
接收携带有码流信息的会控请求消息; 其中, 所述码流信息包括: 远程呈 现会场的真人大小图像的码流信息、 远程呈现会场的全景图像的码流信息、 远 程呈现会场的胶片的码流信息、 普通会场的主码流信息和普通会场的辅码流信 息中的一种或者其任意组合;
根据所述远程呈现会场的属性信息, 解析所述会控请求消息;
根据所述会控请求消息, 进行相应的码流处理。
5、根据权利要求 4所述的包含远程呈现会场的会议控制方法,其特征在于, 所述会控请求消息包括: 远程呈现屏幕切换请求消息和 /或远程呈现屏幕多画面 清求消息;
其中, 所述的远程呈现屏幕切换请求消息至少包括: 远程呈现会场的码流 类型编号信息、 多画面指示信息和普通会场的码流类型编号信息中的一种或者 其任意组合;
所述的远程呈现屏幕多画面请求消息至少包括: 所述请求消息的类型、 屏 幕的数量, 每个屏幕的数据长度、 每个屏幕的编号、 每个屏幕被选看的多画面 类型、 每个屏幕中各个子画面对应的码流编号中的一种。
6、 根据权利要求 2或 5所述的包含远程呈现会场的会议控制方法, 其特征 在于, 当包含远程呈现会场的会议需要跨多点控制单元时, 所述根据所述接收 的远程呈现会场的属性信息, 进行会议控制的步骤, 还包括:
根据所述接收的远程呈现会场的属性信息, 确定级联多点控制单元之间的 级联通道的数目, 建立相应数目的级联通道。
7、根据权利要求 6所述的包含远程呈现会场的会议控制方法,其特征在于, 当所述会控请求消息中携带码流信息为级联多点控制单元控制的会场码流信息 时, 所述根据所述会控请求消息, 进行相应的码流处理的步骤, 包括:
根据所述会控请求消息, 发送携带有码流信息的图像切换请求消息给所述 级联多点控制单元;
通过所述级联通道获取所述级联多点控制单元的相应码流。
8、根据权利要求 7所述的包含远程呈现会场的会议控制方法,其特征在于, 所述根据所述会控请求消息, 进行相应的码流处理的步骤, 还包括:
根据所述会控请求消息, 解析所述获取的码流是否需要进行码流组合; 如果所述获取的码流需要进行码流组合, 则进行码流组合处理, 并将处理 后的组合码流下发给请求会场;
如果所述获取的码流不需要进行码流组合, 则将所述获取的码流下发给请 求会场。
9、根据权利要求 8所述的包含远程呈现会场的会议控制方法,其特征在于, 所述图像切换请求消息, 至少包括: 级联多点控制单元之间的多通道图像切换 消息;
所述的级联多点控制单元之间的多通道图像切换消息至少包括: 级联通道 编号、 被切换会场编号、 被切换会场的码流编码、 通道操作类型信息中的一种。
10、 一种多点控制单元, 其特征在于, 包括:
信息接收模块, 用于接收远程呈现会场发送的所述远程呈现会场的属性信 息; 其中, 所述远程呈现会场包括至少两个视频区域;
会议控制模块, 用于根据所述接收的远程呈现会场的属性信息, 进行会议 控制。
11、 根据权利要求 10所述的多点控制单元, 其特征在于, 所述会议控制模 块, 包括:
信息存储子模块, 用于存储所述接收的远程呈现会场的属性信息, 作为会 议控制的依据;
信息识别子模块, 用于根据所述各个会场的属性信息, 识别所述各个会场; 信息下发子模块, 用于下发所述各个会场的属性信息给所述远程呈现会议 中各个会场。
12、 根据权利要求 10或 11所述的多点控制单元, 其特征在于, 所述会议 控制模块, 包括:
请求消息接收子模块, 用于接收携带有码流信息的会控请求消息; 其中, 所述码流信息包括: 远程呈现会场的真人大小图像的码流信息、 远程呈现会场 的全景图像的码流信息、 远程呈现会场的胶片的码流信息、 普通会场的主码流 信息和普通会场的辅码流信息中的一种或者其任意组合;
请求消息解析子模块, 用于根据所述远程呈现会场的属性信息, 解析所述 会控请求消息;
码流处理子模块, 用于根据所述会控请求消息, 进行相应的码流处理。
13、 根据权利要求 12所述的多点控制单元, 其特征在于, 当包含远程呈现 会场的会议需要跨多点控制单元时, 所述会议控制模块, 还包括:
级联通道建立子模块: 用于根据所述接收的远程呈现会场的属性信息, 确 定级联多点控制单元之间的级联通道的数目, 建立相应数目的级联通道。
14、 根据权利要求 13所述的多点控制单元, 其特征在于, 当所述会控请求 消息中携带码流信息为级联多点控制单元控制的会场码流信息时, 所述码流处 理子模块, 包括:
消息发送分模块, 用于根据所述会控请求消息, 发送携带有码流信息的图 像切换请求消息给所述级联多点控制单元;
码流获取分模块, 用于通过所述级联通道获取所述级联多点控制单元的相 应码流。
15、 根据权利要求 14所述的多点控制单元, 其特征在于, 所述码流处理子 模块, 还包括:
解析分模块, 用于根据所述会控请求消息, 解析所述获取的码流是否需要 进行码流组合;
码流组合处理分模块, 用于如果所述获取的码流需要进行码流组合, 则进 行码流组合处理, 并将处理后的组合码流下发给请求会场;
码流下发分模块, 用于如果所述获取的码流不需要进行码流组合, 则将所 述获取的码流下发给请求会场。
16、 一种会场终端, 其特征在于, 包括:
信息发送模块, 用于发送远程呈现会场的属性信息; 其中, 所述远程呈现 会场包括至少两个视频区域;
信息接收模块, 用于接收所述多点控制单元所下发的所述各个远程呈现会 场的属性信息。
17、 根据权利要求 16所述的会场终端, 其特征在于, 所述会场终端, 还包 括: 信息存储模块, 用于存储所述接收到的各个远程呈现会场的属性信息; 会场标识模块, 用于根据所述各个远程呈现会场的属性信息, 对所述各个 远程呈现会场进行标识;
会场标识显示模块, 用于显示所述各个远程呈现会场的标识。
18、 根据权利要求 17所述的会场终端, 其特征在于, 所述会场终端, 还包 括:
请求消息发送模块, 用于发送携带有码流信息的会控请求消息; 其中, 所 述码流信息包括: 远程呈现会场的真人大小图像的码流信息、 远程呈现会场的 全景图像的码流信息、 远程呈现会场的胶片的码流信息、 普通会场的主码流信 息和普通会场的辅码流信息中的一种或者其任意组合;
码流接收模块, 用于根据所述会控请求消息, 接收所述多点控制单元下发 的码流。
19、 一种包含远程呈现会场的会议控制系统, 其特征在于, 包括; 至少一 个会场终端和至少一个多点控制单元;
所述会场终端, 用于发送远程呈现会场的属性信息给所述多点控制单元, 接收所述多点控制单元所下发的所述各个远程呈现会场的属性信息; 其中, 所 述远程呈现会场包括至少两个视频区域;
所述多点控制单元, 用于接收远程呈现会场终端发送的所述远程呈现会场 的属性信息, 并根据所述接收的远程呈现会场的属性信息, 进行会议控制。
20、 根据权利要求 19所述的包含远程呈现会场的会议控制系统, 其特征在 于, 所述会场终端包括;
信息发送模块, 用于发送远程呈现会场的属性信息; 其中, 所述远程呈现 会场包括至少两个视频区域;
信息接收模块, 用于接收所述多点控制单元所下发的所述各个远程呈现会 场的属性信息。
21、 根据权利要求 19或 20所述的包含远程呈现会场的会议控制系统, 其 特征在于, 所述多点控制单元包括:
信息接收模块, 用于接收远程呈现会场发送的所述远程呈现会场的属性信 息; 其中, 所述远程呈现会场包括至少两个视频区域;
会议控制模块, 用于根据所述接收的远程呈现会场的属性信息, 进行会议 控制。
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