WO2017128517A1 - 一种基于sip协议的视频会议的实现方法及其系统 - Google Patents

一种基于sip协议的视频会议的实现方法及其系统 Download PDF

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Publication number
WO2017128517A1
WO2017128517A1 PCT/CN2016/078010 CN2016078010W WO2017128517A1 WO 2017128517 A1 WO2017128517 A1 WO 2017128517A1 CN 2016078010 W CN2016078010 W CN 2016078010W WO 2017128517 A1 WO2017128517 A1 WO 2017128517A1
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WIPO (PCT)
Prior art keywords
conference
video
server
puzzle
members
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PCT/CN2016/078010
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English (en)
French (fr)
Inventor
李伟尧
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邦彦技术股份有限公司
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Publication of WO2017128517A1 publication Critical patent/WO2017128517A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • 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
    • H04N7/157—Conference systems defining a virtual conference space and using avatars or agents
    • 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
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • 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

Definitions

  • the present invention relates to the field of video conference communication, and in particular to a method and system for implementing video conference based on SIP protocol.
  • SIP Session Initiation Protocol
  • IETF Internet Engineering Task Force
  • IETF Internet Engineering Task Force
  • IMS IP Multimedia
  • Real-time transport protocol is a network transport protocol that details the standard packet format for delivering audio and video over the Internet.
  • the RTP protocol is widely used for streaming-related communications and entertainment, including telephony, video conferencing, television, and network-based push-to-talk services (like walkie-talkie calls).
  • a video conference is a meeting in which people in two or more locations conduct face-to-face conversations through communication devices and networks.
  • participants can hear the sounds of other venues, see the images, movements and expressions of participants at other venues, and send electronic presentations to give participants an immersive feel.
  • an object of the present invention is to provide a method for implementing a video conference based on the SIP protocol, which can realize video puzzles automatically and output different layouts of video puzzles according to different terminals used; Look at the puzzle members and replace the members to change the video puzzles; the participants can easily communicate and transfer data.
  • the technical solution adopted by the present invention is a method for implementing a video conference based on the SIP protocol, which includes the following steps:
  • Conference automatically output different video puzzles to members according to the different terminals used in the conference
  • the terminal includes a PC terminal and a mobile phone terminal;
  • Automatic output of different video puzzles includes, if the terminal used by the participating members is a PC terminal, the output puzzle layout is a 2 ⁇ 3 layout, and if the terminal used by the participating members is a mobile terminal, the output layout of the puzzle is a 3 ⁇ 2 layout. .
  • step S3 includes the following steps:
  • the conference server outputs the video stream of the member that is requested to view.
  • the conference server executes a replacement member command, and pushes the replaced video puzzle layout information to all the participating members.
  • step S4 includes the following steps:
  • the temporary discussion group members exchange text information and files and pictures through the soft exchange server and the state presentation, the group management, and the instant message server.
  • step S2 includes the following steps:
  • the conference server adds the new member to the video puzzle. If the current puzzle is full and 6 people are participating in the mixed screen, the new member does not participate in the puzzle; otherwise, the idle position is searched for in the six-screen, and is filled by the new member;
  • the conference server sends the specific layout information of the video puzzle to different participants according to the puzzle result.
  • Another object of the present invention is to provide a video conference system based on the SIP protocol, which is simple in composition, and can realize automatic jigsaw of member membership, view puzzle members and change puzzle members, and the members can exchange and data quickly and conveniently. .
  • Another technical solution adopted by the present invention is a video conference system based on the SIP protocol, including:
  • the new member enrollment unit is used to send a video conference invitation to the conference members, and the conference members accept the invitation to enter the video conference, and automatically output different video puzzles to the members according to different terminals used in the conference;
  • An information exchange unit for exchanging information between members of a video conference.
  • the terminal includes a PC terminal and a mobile phone terminal, and the layout of the puzzle output by the PC terminal is a 2 ⁇ 3 layout, and the layout of the puzzle output by the mobile terminal is a 3 ⁇ 2 layout.
  • the new member joining unit includes a first module, configured to:
  • the conference server adds new members to the video puzzle. If the current puzzle is full and 6 people are already participating in the mixed screen, the new member does not participate in the puzzle; otherwise, the free position is searched in the six-screen screen and filled by the new member;
  • the conference server sends the specific layout information of the video puzzle to different participants according to the puzzle result.
  • the viewing and replacing member unit includes a second module for:
  • the conference server will output the video stream of the member requested to view
  • the conference server executes the replace member command and pushes the replaced video puzzle layout information to all participating members.
  • the information exchange unit includes a third module, configured to:
  • the invention has the beneficial effects of the present invention: a method for realizing a video conference based on the SIP protocol, which can realize video puzzles automatically and output different layouts of video puzzles according to different terminals used; the conference chairperson can view the puzzles at any time. Members and replace members to change video puzzles; participants can easily communicate and transfer data.
  • Another advantageous effect of the present invention is: a video conference system based on the SIP protocol in the present invention, the composition of which is simple, the new member joining unit can realize automatic joining of members into the meeting; the viewing and replacing member units can adjust the puzzle members and change Puzzle members; using the information exchange unit, members can communicate and transfer data quickly and easily.
  • FIG. 1 is a schematic diagram of information transmission in a method for implementing a video conference based on a SIP protocol according to the present invention
  • FIG. 2 is a flowchart of a specific embodiment of a conference initiator creating a conference in a method for implementing a video conference based on the SIP protocol according to the present invention
  • FIG. 3 is a flow chart of a specific embodiment of member B joining in a method for implementing a video conference based on the SIP protocol according to the present invention
  • FIG. 4 is a flowchart of a specific embodiment of a conference initiator viewing member B and a replacement member B in a method for implementing a video conference based on the SIP protocol;
  • FIG. 5 is a flowchart of a specific embodiment of a temporary discussion group created by a member 1 in a method for implementing a video conference based on a SIP protocol according to the present invention
  • FIG. 6 is a flowchart of a specific embodiment of a temporary discussion group member performing text information exchange in a method for implementing a video conference based on a SIP protocol according to the present invention
  • FIG. 7 is a flowchart of a specific embodiment of a file or picture transmission by a member of a temporary discussion group in a method for implementing a video conference based on the SIP protocol according to the present invention.
  • a method for implementing video conference based on SIP protocol comprising the following steps:
  • Conference automatically output different video puzzles to members according to the different terminals used in the conference
  • the SIP conference-based video conference is implemented by using a SIP protocol and an RTP protocol to complete information transmission between a terminal, a media processing server, a conference server, and a softswitch server, where the information flow includes a signaling flow and a media flow.
  • the signaling flow is transmitted between the terminal, the softswitch server, the conference server, and the media processing server by using the SIP protocol, and the media stream is transferred between the terminal and the media processing server by using the RTP protocol.
  • the video conference initiator creates a video conference.
  • the process is as follows:
  • Step P1 The conference initiator terminal sends INVITE signaling to the softswitch server, requesting to establish a conference, and the INVITE message carries a private header field.
  • BY-Info: conftype free-conf, which means that a free conference is held;
  • Step P2 The softswitch server sends the INVITE signaling to the conference server.
  • Step P3 The conference server sends the INVITE signaling to the media processing server.
  • Step P4 The media processing server responds to the request, and sends a 200 OK response message to the conference server.
  • Step P5 After receiving the 200 OK response message, the conference server sends an ACK acknowledgement message to the media processing server.
  • Step P6 The conference server sends an ACK acknowledgement message to the softswitch server.
  • Step P7 The softswitch server forwards an ACK acknowledgement message to the conference initiator terminal.
  • Step P8 The conference server sends an INFO to the media processing server. CreateConf/JoinConf signaling, requesting to establish a conference and join the conference initiator to the conference;
  • Step P9 The media processing server sends a 200 OK response message to the conference server.
  • Step P10 The media processing server sends an INFO to the conference server. Rsp signaling, returning the result of conference establishment and adding members to the conference server;
  • Step P11 The conference server sends a 200 OK response message to the media processing server.
  • Step P12 The conference server sends an INFO (mixscreen) signaling to the media processing server to perform a puzzle;
  • Step P13 The media processing server sends a 200 OK response message to the conference server.
  • Step P14 The media processing server sends the INFO rsp signaling to the conference server, and returns the puzzle result to the conference server.
  • Step P15 The conference server sends an INFO (Jigsaw Layout Information) signaling to the conference initiator terminal, and transmits the layout information of the conference video puzzle to the conference initiator, and the puzzle layout information is which conference member each position of the current puzzle is respectively;
  • INFO Job Layout Information
  • Step P16 The conference initiator terminal sends a 200 OK response message to the conference server.
  • the terminal includes a PC terminal and a mobile phone terminal;
  • Automatic output of different video puzzles includes, if the terminal used by the participating members is a PC terminal, the output puzzle layout is a 2 ⁇ 3 layout, and if the terminal used by the participating members is a mobile terminal, the output layout of the puzzle is a 3 ⁇ 2 layout. .
  • step S2 includes the following steps:
  • the conference server adds the new member to the video puzzle. If the current puzzle is full and 6 people are participating in the mixed screen, the new member does not participate in the puzzle; otherwise, the idle position is searched for in the six-screen, and is filled by the new member;
  • the conference server sends the specific layout information of the video puzzle to different participants according to the puzzle result.
  • Step P1 The conference initiator terminal sends REFER signaling to the softswitch server to add a member request.
  • the standard header field Refer-To carries the member uri. If the Method parameter is not carried or the Method parameter is carried and the parameter value is INVITE, the new member is added. member;
  • Step P2 The softswitch server sends REFER signaling to the conference server.
  • Step P3 The conference server sends a 202 response message to the conference initiator terminal.
  • Step P4 The conference server sends INVITE (NO SDP) signaling to the member terminal B, and performs media capability negotiation with the terminal B.
  • INVITE NO SDP
  • Step P5 Member terminal B sends a 200 OK response message to the conference server, and member terminal B returns 200. If the value of the User-Agent header field is in the OK response message and the value is AVSP_eDTPhone, it means that the terminal used by the member is a mobile terminal, otherwise the terminal used by the member is a PC terminal;
  • Step P6 The conference server sends an INVITE (SDP) signaling to the media processing server, and the conference server requests the media processing server to acquire the video information of the member terminal B.
  • INVITE SDP
  • Step P7 The media processing server sends a 200 OK response message to the conference server, where the message carries the SDP information of the member B.
  • Step P8 The conference server sends an ACK acknowledgement message to the media processing server.
  • Step P9 The conference server sends an ACK acknowledgement message to the member terminal B, where the ACK message carries the SDP information of the member B returned by the media processing server.
  • Step P10 The conference server sends an INFO JoinConf signaling to the media processing server, indicating that the member B is added to the conference;
  • Step P11 The media processing server sends a 200 OK response message to the conference server.
  • Step P12 The media processing server sends the INFO rsp signaling to the conference server, and returns the result of joining the conference to the conference server.
  • Step P13 The conference server sends a 200 OK response message to the media processing server.
  • Step P14 The conference server sends an INFO (mixscreen) message to the media processing server, and the puzzle is re-created. If the current video puzzle is full, 6 people are already participating in the mixed screen, then the new member B does not participate in the puzzle; otherwise, the conference is searched for in the six-screen screen. Idle location, filled by new member B;
  • Step P15 The media processing server sends a 200 OK response message to the conference server.
  • Step P16 The media processing server sends the INFO rsp signaling to the conference server, and returns the puzzle result to the conference server.
  • Step P17 The conference server sends a 200 OK response message to the media processing server.
  • the conference server judges whether to send only the puzzle information to the new member B according to the result of the puzzle.
  • the puzzle information is sent to all members of the conference, and the flow is as follows:
  • Step P18 The conference server sends an INFO (Jigsaw Layout Information) signaling to the conference initiator terminal, and transmits the puzzle layout information to the conference initiator.
  • INFO Job Layout Information
  • Step P19 The conference initiator terminal sends a 200 OK response message to the conference server.
  • Step P20 the conference server sends INFO (Jigsaw Layout Information) signaling to the member terminal B, and transmits the re-puzzled video puzzle layout information to the new member B;
  • Step P21 Member terminal B sends a 200 OK response message to the conference server.
  • the process by which the conference server sends the puzzle layout information to other members is the same as the process sent to member B.
  • the conference server When the new member B does not participate in the puzzle, the conference server only sends the puzzle layout information to the new member B, and the sending process and the above step P20 Same as P21.
  • step S3 comprises the following steps:
  • the conference server outputs the video stream of the member that is requested to view.
  • the conference server executes a replacement member command, and pushes the replaced video puzzle layout information to all the participating members.
  • the conference initiator can view the member and the replacement member.
  • the conference initiator terminal and the member terminal B exchange information with the media processing server through the RTP protocol.
  • the steps of the conference initiator to view the member B and the replacement member B are as follows:
  • Step P1 The conference initiator terminal sends reInvite+xml signaling to the softswitch server, and the conference initiator applies for viewing and carrying the interception information, where the information of the member B is carried;
  • Step P2 The softswitch server forwards the reInvite+xml signaling to the conference server.
  • Step P3 The conference server sends reInvite signaling to the media processing server to request to view the member;
  • Step P4 The media processing server sends a 200 OK response message to the conference server.
  • Step P5 The conference server sends an ACK acknowledgement message to the media processing server.
  • Step P6 The conference server sends a 200 OK response message to the softswitch server.
  • Step P7 The softswitch server sends a 200 OK response message to the conference initiator terminal.
  • Step P8 The conference initiator terminal sends an ACK acknowledgement message to the softswitch server.
  • Step P9 The softswitch server sends an ACK acknowledgement message to the conference server.
  • Step P10 The conference server sends an INFO to the media processing server. (mixscreen) signaling, the conference server subscribes to the media processing server for the puzzle information;
  • Step P11 The media processing server sends a 200 OK response message to the conference server.
  • Step P12 The media processing server sends an INFO to the conference server. Rsp signaling, the media processing server transmits the puzzle information to the conference server;
  • Step P13 The conference server sends a 200 OK response message to the media processing server.
  • Step P14 The conference server sends the INFO signaling to the conference initiator terminal to view the response.
  • Step P15 The conference initiator terminal sends 200 to the conference server. OK response message, the media processing server sends the video information (the video information of B) of the member requesting the viewing to the conference initiator;
  • Step P16 The conference initiator terminal sends an INFO to the softswitch server. (mixscreen) signaling, signaling represents a puzzle and carries member replacement information, and the replacement information is member C replacing member B;
  • Step P17 The softswitch server forwards INFO (mixscreen) signaling to the conference server;
  • Step P18 The conference server sends a 200 OK response message to the softswitch server.
  • Step P19 The softswitch server sends a 200 OK response message to the conference initiator terminal.
  • Step P20 The conference server sends an INFO (mixscreen) signaling to the media processing server, requesting to re-create the puzzle;
  • Step P21 The media processing server sends a 200 OK response message to the conference server.
  • Step P22 The media processing server sends an INFO to the conference server. Rsp signaling, returning the puzzle result of the re-pronging to the conference server, and the position of the member B is replaced by the member C;
  • Step P23 The conference server sends a 200 OK response message to the media processing server.
  • Step P24 The conference server sends an INFO to the softswitch server. Rsp signaling, sending the result of the re-puzzing to the softswitch server;
  • Step P25 The softswitch server forwards the INFO rsp to the conference initiator terminal, and forwards the result of the re-patch to the conference initiator.
  • Step P26 The conference initiator terminal sends a 200 OK response message to the softswitch server.
  • Step P27 The softswitch server sends a 200 OK response message to the conference server.
  • Step P28 The conference server sends an INFO (Jigsaw Layout Information) signaling to the conference initiator terminal, and sends the new puzzle layout information to the conference initiator.
  • INFO Job Layout Information
  • Step P29 The conference initiator terminal sends a 200 OK response message to the conference server.
  • Step P30 the conference server sends INFO (Jigsaw Layout Information) signaling to the member terminal B, and sends the new puzzle layout information to the member B;
  • INFO Job Layout Information
  • P31 Member terminal B sends a 200 OK response message to the conference server.
  • the new video puzzle layout information will be pushed to other members of the conference, and the push step refers to steps P30 and P31 described above.
  • step S4 includes the following steps:
  • the temporary discussion group members exchange text information and files and pictures through the soft exchange server and the state presentation, the group management, and the instant message server.
  • Step P1 The member terminal 1 sends PUT signaling to the status presentation, the group management, and the instant message server, requesting to create a temporary group, and carrying information of all the participants in the video conference;
  • Step P2 status presentation, group management, and the instant message server sends a 200 OK response message to the member terminal 1;
  • Step P3 the status presentation, the group management, and the instant message server send the MESSAGE (group-put-in) signaling to the softswitch server, and send the successful group information to the softswitch server;
  • MESSAGE group-put-in
  • Step P4 The softswitch server sends MESSAGE (group-put-in) signaling to the member terminal 2, and sends the information of the success of the group to the member 2;
  • MESSAGE group-put-in
  • Step P5 the member terminal 2 sends a 200 OK response message to the softswitch server
  • Step P6 The softswitch server sends a 200 OK response message to the status presentation, the group management, and the instant message server.
  • the status presentation, the group management, and the instant message server will parse all the members in the group, and after the parsing is completed, send a message that the member is successful in the group to each member other than the group creator. Refer to steps P3 to P6 for specific steps.
  • Step P7 the member terminal 2 sends GET signaling to the state presentation, the group management, and the instant message server, requesting to acquire the group list;
  • Step P8 status presentation, group management, and instant messaging server send 200 to member terminal 2.
  • the OK response message sends the group list information to member 2.
  • Step P1 the member terminal 1 sends MESSAGE signaling to the softswitch server, and the signaling carries the group message.
  • Step P2 The softswitch server forwards the MESSAGE signaling to the status presentation, the group management, and the instant messaging server;
  • Step P3 status presentation, group management, and the instant message server send a 200 OK response message to the softswitch server;
  • Step P4 The softswitch server sends a 200 OK response message to the member terminal 1;
  • Step P5 the status presentation, the group management, and the instant message server send the MESSAGE signaling to the softswitch server, and send the group message to the softswitch server for forwarding;
  • Step P6 The softswitch server sends the MESSAGE signaling to the member terminal 2, and sends the group message to the member 2;
  • Step P7 the member terminal 2 sends a 200 OK response message to the softswitch server
  • Step P8 The softswitch server sends a 200 OK response message to the status presentation, the group management, and the instant message server.
  • Step P9 status presentation, group management, and instant messaging server sending MESSAGE signaling to the softswitch server;
  • Step P10 The softswitch server sends MESSAGE signaling to the member terminal n, and the softswitch server sends the group message to the member terminal n;
  • Step P11 The member terminal n sends a 200 OK response message to the softswitch server.
  • the members in the temporary discussion group can perform file or picture transmission. Referring to FIG. 7, the specific process is as follows:
  • Step P1 The member terminal 1 sends MESSAGE signaling to the softswitch server, where the signaling carries the file or picture information to be transmitted;
  • Step P2 The softswitch server forwards the MESSAGE signaling to the status presentation, the group management, and the instant messaging server;
  • Step P3 status presentation, group management, and the instant message server send a 200 OK response message to the softswitch server;
  • Step P4 The softswitch server sends a 200 OK response message to the member terminal 1;
  • Step P5 the status presentation, the group management, and the instant message server send the MESSAGE (Ftp information: ip/port/usr/pwd/path) signaling to the softswitch server, and send the information of the upload path to the softswitch server;
  • MESSAGE Ftp information: ip/port/usr/pwd/path
  • Step P6 The softswitch server forwards the MESSAGE (Ftp information: ip/port/usr/pwd/path) signaling to the member terminal 1;
  • MESSAGE Ftp information: ip/port/usr/pwd/path
  • Step P7 the member terminal 1 sends a 200 OK response message to the softswitch server
  • Step P8 The softswitch server sends a 200 OK response message to the status presentation, the group management, and the instant message server.
  • Step P9 the member terminal 1 sends FTP: PUT signaling to the status presentation, the group management, and the instant message server, and uploads the file or the picture to the status presentation, the group management, and the instant message server;
  • Step P10 the member terminal 1 sends MESSAGE (result) signaling to the status presentation, the group management, and the instant message server, and sends the upload result to the status presentation, the group management, and the instant message server;
  • Step P11 The softswitch server forwards the MESSAGE (result) signaling to the status presentation, the group management, and the instant message server;
  • Step P12 status presentation, group management, and the instant message server return a 200 OK response message to the softswitch server;
  • Step P13 The softswitch server forwards the 200 OK response message to the member terminal 1;
  • Step P14 Status Presentation, Group Management, and Instant Messaging Server Send MESSAGE Signaling to the softswitch server, the signaling carries file or picture information;
  • Step P15 The softswitch server forwards the received MESSAGE signaling to the member terminal 2;
  • Step P16 the member terminal 2 returns a 200 OK response message to the softswitch server
  • Step P17 The softswitch server forwards the 200 OK response message to the status presentation, the group management, and the instant message server;
  • Step P18 The member terminal 2 sends MESSAGE (agree) signaling to the softswitch server, indicating that it agrees to receive the file or picture;
  • Step P19 The softswitch server forwards the MESSAGE (agree) signaling to the status presentation, the group management, and the instant messaging server;
  • Step P20 status presentation, group management, and the instant message server send a 200 OK response message to the softswitch server;
  • Step P21 The softswitch server forwards the 200 OK response message to the member terminal 2;
  • Step P22 status presentation, group management, and instant message server send MESSAGE (ftp information: ip/port/usr/pwd/path) signaling to the softswitch server, and send the information of the receiving path to the softswitch server;
  • MESSAGE ftp information: ip/port/usr/pwd/path
  • Step P23 The softswitch server forwards the MESSAGE (ftp information: ip/port/usr/pwd/path) signaling to the member terminal 2;
  • Step P24 the member terminal 2 sends a 200 OK response message to the softswitch server
  • Step P25 The softswitch server forwards the 200 OK response message to the status presentation, the group management, and the instant message server;
  • Step P26 Member terminal 2 sends FTP: GET signaling to status presentation, group management, and instant messaging server, and member 2 receives the file or picture;
  • Step P27 The member terminal 2 sends MESSAGE (result) signaling to the softswitch server, and sends the received result to the softswitch server.
  • Step P28 The softswitch server forwards the MESSAGE (result) signaling to the status presentation, the group management, and the instant messaging server.
  • Step P29 status presentation, group management, and the instant message server send a 200 OK response message to the softswitch server;
  • Step P30 The softswitch server forwards the 200 OK response message to the member terminal 2.
  • a video conferencing system based on SIP protocol comprising:
  • the new member enrollment unit is used to send a video conference invitation to the conference members, and the conference members accept the invitation to enter the video conference, and automatically output different video puzzles to the members according to different terminals used in the conference;
  • An information exchange unit for exchanging information between members of a video conference.
  • the terminal includes a PC terminal and a mobile phone terminal
  • the puzzle layout output by the PC terminal is a 2 ⁇ 3 layout
  • the layout of the puzzle output by the mobile terminal is a 3 ⁇ 2 layout.
  • the new member joining unit includes a first module for:
  • the conference server adds new members to the video puzzle. If the current puzzle is full and 6 people are already participating in the mixed screen, the new member does not participate in the puzzle; otherwise, the free position is searched in the six-screen screen and filled by the new member;
  • the conference server sends the specific layout information of the video puzzle to different participants according to the puzzle result.
  • the viewing and replacing member unit includes a second module for:
  • the conference server will output the video stream of the member requested to view
  • the conference server executes the replace member command and pushes the replaced video puzzle layout information to all participating members.
  • the information exchange unit includes a third module for:

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  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
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Abstract

本发明公开了一种基于SIP协议的视频会议系统的实现方法，包括：S1、创建视频会议；S2、向会议成员发送视频会议邀请，会议成员接受邀请进入视频会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；S3、调看与替换视频拼图中的成员；S4、使视频会议成员之间进行信息交流。还公开了一种基于SIP协议的视频会议系统。本发明组成简单，可实现成员入会自动拼图并根据所用终端的不同输出不同视频拼图；主席可随时调看拼图成员并替换成员；与会成员可进行交流和数据传输。本发明作为一种基于SIP协议的视频会议的实现方法及其系统可广泛应用于视频会议领域。

Description

一种基于SIP协议的视频会议的实现方法及其系统
技术领域
本发明涉及视频会议通信领域，尤其是一种基于SIP协议的视频会议的实现方法及其系统。
背景技术
SIP（Session Initiation Protocol，会话初始协议）是由IETF（Internet Engineering Task Force，因特网工程任务组）制定的多媒体通信协议。它是一个基于文本的应用层控制协议，用于创建、修改和释放一个或多个参与者的会话。广泛应用于CS（Circuit Switched，电路交换）、NGN（Next Generation Network，下一代网络）以及IMS（IP Multimedia Subsystem，IP多媒体子系统）的网络中，可以支持并应用于语音、视频、数据等多媒体业务。
实时传输协议RTP（Real-time Transport Protocol）是一个网络传输协议，它详细说明了在互联网上传递音频和视频的标准数据包格式。RTP协议广泛应用于流媒体相关的通讯和娱乐，包括电话、视频会议、电视和基于网络的一键通业务（类似对讲机的通话）。
视频会议，是指位于两个或多个地点的人们，通过通信设备和网络，进行面对面交谈的会议。使用视频会议系统，参会者可以听到其它会场的声音、看到其它会场现场参会人的形象、动作和表情，还可以发送电子演示内容，使与会者有身临其境的感觉。
目前，参与会议的成员之间除了进行面对面交谈外，无法进行更多的信息交流，局限性较大；现有同类产品召开视频会议的操作复杂，不适合一般普通用户的使用；同时现有视频会议一般开启后默认看主席，需要手动去选择成员进行拼图，并手动推送，不满足快速便捷的沟通的需要。
发明内容
为了解决上述技术问题，本发明的目的是提供一种基于SIP协议的视频会议的实现方法，其可实现入会自动进行视频拼图并根据所用终端的不同输出不同布局的视频拼图；会议主席可随时调看拼图成员并替换成员更改视频拼图；与会成员可便捷地进行交流和数据传输。
本发明所采用的技术方案是一种基于SIP协议的视频会议的实现方法，包括以下步骤：
S1、创建视频会议；
S2、向会议成员发送视频会议邀请，会议成员接受邀请进入视频
会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
S3、调看与替换视频拼图中的成员；
S4、使视频会议成员之间进行信息交流。
进一步地，所述终端包括PC终端和手机终端；
自动输出不同视频拼图包括，如果与会成员使用的终端为PC终端，则输出的拼图布局为2×3的布局，如果与会成员使用的终端为手机终端，则输出的拼图布局为3×2的布局。
进一步地，所述步骤S3包括以下步骤：
S31、向会议服务器发送查看视频拼图中的成员的请求信息；
S32、会议服务器将被请求查看的成员的视频流输出；
S33、向会议服务器发出替换成员请求信息；
S34、会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
进一步地，所述步骤S4包括以下步骤：
S41、向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
S42、状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
S43、使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
进一步地，所述步骤S2包括以下步骤：
S21、向会议成员发送视频会议邀请；
S22、向会议服务器发送接受视频会议邀请的确认信息；
S23、会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
S24、会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
本发明的另一目的是提供一种基于SIP协议的视频会议系统，其组成简单，且能实现成员入会自动拼图，调看拼图成员和更改拼图成员，与会成员可快速便捷地进行交流和数据传输。
本发明所采用的另一技术方案是一种基于SIP协议的视频会议系统，包括：
创建会议单元，用于创建视频会议；
新成员入会单元，用于向会议成员发送视频会议邀请，会议成员接受邀请进入视频会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
调看与替换成员单元，用于调看与替换视频拼图中的成员；
信息交流单元，用于使视频会议成员之间进行信息交流。
进一步地，所述终端包括PC终端和手机终端，所述PC终端输出的拼图布局为2×3的布局，所述手机终端输出的拼图布局为3×2的布局。
进一步地，所述新成员入会单元包括第一模块，用于：
向会议成员发送视频会议邀请；
向会议服务器发送接受视频会议邀请的确认信息；
会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
进一步地，所述调看与替换成员单元包括第二模块，用于：
向会议服务器发送查看视频拼图中的成员的请求信息；
会议服务器将被请求查看的成员的视频流输出；
向会议服务器发出替换成员请求信息；
会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
进一步地，所述信息交流单元包括第三模块，用于：
向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
本发明的有益效果是：本发明中一种基于SIP协议的视频会议的实现方法，其可实现入会自动进行视频拼图并根据所用终端的不同输出不同布局的视频拼图；会议主席可随时调看拼图成员并替换成员更改视频拼图；与会成员可便捷地进行交流和数据传输。
本发明的另一有益效果是：本发明中一种基于SIP协议的视频会议系统，其组成简单，新成员入会单元能实现成员入会自动拼图；调看与替换成员单元可以调看拼图成员和更改拼图成员；利用信息交流单元，与会成员可快速便捷地进行交流和数据传输。
附图说明
下面结合附图对本发明的具体实施方式作进一步说明：
图1是本发明一种基于SIP协议的视频会议的实现方法中信息传输的示意图；
图2是本发明一种基于SIP协议的视频会议的实现方法中会议发起者创建会议的一具体实施例流程图；
图3是本发明一种基于SIP协议的视频会议的实现方法中成员B入会的一具体实施例流程图；
图4是本发明一种基于SIP协议的视频会议的实现方法中会议发起者调看成员B和替换成员B的一具体实施例流程图；
图5是本发明一种基于SIP协议的视频会议的实现方法中成员1创建临时讨论群组的一具体实施例流程图；
图6是本发明一种基于SIP协议的视频会议的实现方法中临时讨论群组的成员进行文字信息交流的一具体实施例流程图；
图7是本发明一种基于SIP协议的视频会议的实现方法中临时讨论群组的成员进行文件或图片传输的一具体实施例流程图。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
一种基于SIP协议的视频会议的实现方法，包括以下步骤：
S1、创建视频会议；
S2、向会议成员发送视频会议邀请，会议成员接受邀请进入视频
会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
S3、调看与替换视频拼图中的成员；
S4、使视频会议成员之间进行信息交流。
参考图1，所述基于SIP协议的视频会议的实现方法是基于SIP协议和RTP协议在终端、媒体处理服务器、会议服务器和软交换服务器之间完成信息传输，信息流包括信令流和媒体流，信令流利用SIP协议在终端、软交换服务器、会议服务器和媒体处理服务器之间传输，媒体流利用RTP协议在终端和媒体处理服务器之间传递。
视频会议发起者创建视频会议，具体内容参考图2，流程如下：
步骤P1:会议发起者终端向软交换服务器发送INVITE信令，请求建立会议，INVITE消息带私有头域 BY-Info: conftype=free-conf,表示召开的是自由会议；
步骤P2:软交换服务器向会议服务器发送INVITE信令；
步骤P3：会议服务器向媒体处理服务器发送INVITE信令；
步骤P4：媒体处理服务器应答请求，向会议服务器发送200 OK 应答消息；
步骤P5：会议服务器收到200 OK 应答消息后，向媒体处理服务器发送ACK确认消息；
步骤P6：会议服务器向软交换服务器发送ACK确认消息；
步骤P7：软交换服务器转发ACK确认消息给会议发起者终端；
步骤P8：会议服务器向媒体处理服务器发送INFO CreateConf/JoinConf信令，请求建立会议并将会议发起者加入会议；
步骤P9：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P10：媒体处理服务器向会议服务器发送INFO rsp信令，将会议建立和添加成员的结果返回给会议服务器；
步骤P11：会议服务器向媒体处理服务器发送200 OK应答消息；
步骤P12：会议服务器向媒体处理服务器发送INFO（mixscreen）信令,进行拼图；
步骤P13：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P14：媒体处理服务器向会议服务器发送INFO rsp信令，将拼图结果返回给会议服务器；
步骤P15：会议服务器向会议发起者终端发送INFO（拼图布局信息）信令，传送会议视频拼图的布局信息给会议发起者，拼图布局信息为当前拼图的各个位置分别是哪个会议成员；
步骤P16：会议发起者终端向会议服务器发送200 OK应答消息。
作为进一步优选的实施方式，所述终端包括PC终端和手机终端；
自动输出不同视频拼图包括，如果与会成员使用的终端为PC终端，则输出的拼图布局为2×3的布局，如果与会成员使用的终端为手机终端，则输出的拼图布局为3×2的布局。
作为进一步优选的实施方式，所述步骤S2包括以下步骤：
S21、向会议成员发送视频会议邀请；
S22、向会议服务器发送接受视频会议邀请的确认信息；
S23、会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
S24、会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
自由式会议创建成功后，参考图3，成员B的入会流程具体如下：
步骤P1:会议发起者终端向软交换服务器发送REFER信令，进行添加成员请求，标准头域Refer-To携带成员uri，如果没有携带Method参数或者携带Method参数而且参数值为INVITE，则为添加新成员；
步骤P2:软交换服务器向会议服务器发送REFER信令；
步骤P3：会议服务器向会议发起者终端发送202应答消息；
步骤P4：会议服务器向成员终端B发送INVITE（NO SDP）信令，与终端B进行媒体能力协商；
步骤P5：成员终端B向会议服务器发送200 OK 应答消息，成员终端B返回的200 OK应答消息中如果带有User-Agent头域且值为AVSP_eDTPhone，则表示该成员使用的终端为手机终端，否则该成员使用给的终端为PC终端；
步骤P6：会议服务器向媒体处理服务器发送INVITE（B的SDP）信令，会议服务器向媒体处理服务器请求获取成员终端B的视频信息；
步骤P7：媒体处理服务器向会议服务器发送200 OK应答消息，消息携带成员B的SDP信息；
步骤P8：会议服务器向媒体处理服务器发送ACK确认消息；
步骤P9：会议服务器向成员终端B发送ACK确认消息，ACK消息中携带媒体处理服务器返回的成员B的SDP信息；
步骤P10：会议服务器向媒体处理服务器发送INFO JoinConf信令，表示将成员B加入会议；
步骤P11：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P12：媒体处理服务器向会议服务器发送INFO rsp信令，返回加入会议的结果给会议服务器；
步骤P13：会议服务器向媒体处理服务器发送200 OK应答消息；
步骤P14：会议服务器向媒体处理服务器发送INFO（mixscreen）消息，重新进行拼图，如果当前视频拼图已满即已有6人正在参与混屏，则新成员B不参加拼图；否则在六分屏中寻找空闲位置，由新成员B填充；
步骤P15：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P16：媒体处理服务器向会议服务器发送INFO rsp信令，返回拼图结果给会议服务器；
步骤P17：会议服务器向媒体处理服务器发送200 OK应答消息；
会议服务器根据拼图结果判断是否仅发送拼图信息给新成员B，当新成员B参加拼图时，将拼图信息发给会议所有成员，流程如下：
步骤P18：会议服务器向会议发起者终端发送INFO（拼图布局信息）信令，将拼图布局信息传送给会议发起者；
步骤P19：会议发起者终端向会议服务器发送200 OK应答消息；
步骤P20：会议服务器向成员终端B发送INFO（拼图布局信息）信令，将重新拼图后的视频拼图布局信息传送给新成员B；
步骤P21：成员终端B向会议服务器发送200 OK应答消息；
会议服务器将拼图布局信息发送给其他成员的流程与发送给成员B的流程相同。
当新成员B没有参加拼图时，会议服务器仅将拼图布局信息发送给新成员B，发送流程与上述步骤P20 和P21相同。
会议的其他成员入会的流程与所述成员入会的流程一样，不再赘述。
作为进一步优选的实施方式，所述步骤S3包括以下步骤：
S31、向会议服务器发送查看视频拼图中的成员的请求信息；
S32、会议服务器将被请求查看的成员的视频流输出；
S33、向会议服务器发出替换成员请求信息；
S34、会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
会议发起者可调看成员和替换成员，参考图4，会议发起者终端、成员终端B通过RTP协议与媒体处理服务器进行信息交流，会议发起者调看成员B和替换成员B的步骤如下：
步骤P1：会议发起者终端向软交换服务器发送reInvite+xml信令，会议发起者申请调看并携带调看信息，此处携带成员B的信息；
步骤P2:软交换服务器转发reInvite+xml信令给会议服务器；
步骤P3：会议服务器向媒体处理服务器发送reInvite信令，请求调看成员；
步骤P4：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P5：会议服务器向媒体处理服务器发送ACK确认消息；
步骤P6：会议服务器向软交换服务器发送200 OK应答消息；
步骤P7：软交换服务器向会议发起者终端发送200 OK应答消息；
步骤P8：会议发起者终端向软交换服务器发送ACK确认消息；
步骤P9：软交换服务器向会议服务器发送ACK确认消息；
步骤P10：会议服务器向媒体处理服务器发送INFO （mixscreen）信令，会议服务器向媒体处理服务器订阅拼图信息；
步骤P11：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P12：媒体处理服务器向会议服务器发送INFO rsp信令，媒体处理服务器将拼图信息传送给会议服务器；
步骤P13：会议服务器向媒体处理服务器发送200 OK应答消息；
步骤P14：会议服务器向会议发起者终端发送INFO信令，调看响应；
步骤P15：会议发起者终端向会议服务器发送200 OK应答消息，媒体处理服务器将请求调看的成员的视频信息（B的视频信息）发送给会议发起者；
步骤P16：会议发起者终端向软交换服务器发送INFO （mixscreen）信令，信令表示拼图并携带成员替换信息，替换信息为成员C替换成员B ；
步骤P17：软交换服务器转发INFO （mixscreen）信令给会议服务器；
步骤P18：会议服务器向软交换服务器发送200 OK应答消息；
步骤P19：软交换服务器向会议发起者终端发送200 OK应答消息；
步骤P20：会议服务器向媒体处理服务器发送INFO（mixscreen）信令，请求重新进行拼图；
步骤P21：媒体处理服务器向会议服务器发送200 OK应答消息；
步骤P22：媒体处理服务器向会议服务器发送INFO rsp信令，返回重新拼图的拼图结果给会议服务器，成员B的位置被成员C替换；
步骤P23：会议服务器向媒体处理服务器发送200 OK应答消息；
步骤P24：会议服务器向软交换服务器发送INFO rsp信令，将重新拼图的结果发送给软交换服务器；
步骤P25：软交换服务器转发INFO rsp给会议发起者终端，将重新拼图的结果转发给会议发起者；
步骤P26：会议发起者终端向软交换服务器发送200 OK应答消息；
步骤P27：软交换服务器向会议服务器发送200 OK应答消息。
步骤P28：会议服务器向会议发起者终端发送INFO（拼图布局信息）信令，将新的拼图布局信息发送给会议发起者；
步骤P29：会议发起者终端向会议服务器发送200 OK应答消息；
步骤P30：会议服务器向成员终端B发送INFO（拼图布局信息）信令，将新的拼图布局信息发送给成员B；
P31：成员终端B向会议服务器发送200 OK应答消息；
所述新的视频拼图布局信息将会推送给会议的其他成员，推送步骤参照上述步骤P30和P31。
作为进一步优选的实施方式，所述步骤S4包括以下步骤：
S41、向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
S42、状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
S43、使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
会议中的成员可以通过创建临时讨论组进行沟通，参考图5，成员1创建临时讨论群组的流程如下：
步骤P1：成员终端1向状态呈现、群组管理以及即时消息服务器发送PUT信令，请求创建临时群组，并携带视频会议中所有与会成员的信息；
步骤P2:状态呈现、群组管理以及即时消息服务器发送200 OK应答消息给成员终端1；
步骤P3：状态呈现、群组管理以及即时消息服务器向软交换服务器发送MESSAGE（group-put-in）信令，将入群成功的信息发送给软交换服务器；
步骤P4：软交换服务器向成员终端2发送MESSAGE（group-put-in）信令，将入群成功的信息发送给成员2；
步骤P5：成员终端2向软交换服务器发送200 OK应答消息；
步骤P6：软交换服务器向状态呈现、群组管理以及即时消息服务器发送200 OK应答消息；
这里，创建群组后，状态呈现、群组管理以及即时消息服务器将解析该群组中所有的成员，解析完成后向每个除群组创建者之外的成员发送成员入群成功的消息，具体步骤参照所述步骤P3~P6。
步骤P7：成员终端2向状态呈现、群组管理以及即时消息服务器发送GET信令，请求获取群组列表；
步骤P8：状态呈现、群组管理以及即时消息服务器向成员终端2发送200 OK应答消息，将群组列表信息发送给成员2。
所述临时讨论群组其他成员获取群组列表信息的过程与成员2的获取过程一致。
群组中的成员可以进行文字信息交流，即聊天交谈，参考图6，群组中成员聊天的具体流程如下：
步骤P1：成员终端1向软交换服务器发送MESSAGE信令，信令携带群消息；
步骤P2:软交换服务器转发MESSAGE信令给状态呈现、群组管理以及即时消息服务器；
步骤P3：状态呈现、群组管理以及即时消息服务器向软交换服务器发送200 OK应答消息；
步骤P4：软交换服务器向成员终端1发送200 OK应答消息；
步骤P5：状态呈现、群组管理以及即时消息服务器向软交换服务器发送MESSAGE信令，将群消息发送给软交换服务器进行转发；
步骤P6：软交换服务器向成员终端2发送MESSAGE信令，将群消息发送给成员2；
步骤P7：成员终端2向软交换服务器发送200 OK应答消息；
步骤P8：软交换服务器向状态呈现、群组管理以及即时消息服务器发送200 OK应答消息；
群组其他成员（成员n）接收群消息的过程与成员2接收群消息的过程相同。
步骤P9：状态呈现、群组管理以及即时消息服务器向软交换服务器发送MESSAGE信令；
步骤P10：软交换服务器向成员终端n发送MESSAGE信令，软交换服务器将群消息发送给成员终端n；
步骤P11：成员终端n向软交换服务器发送200 OK应答消息。
所述临时讨论群组中的成员可以进行文件或者图片传输，参考图7，具体的过程如下：
步骤P1：成员终端1向软交换服务器发送MESSAGE信令，信令携带欲传输的文件或图片信息；
步骤P2:软交换服务器转发MESSAGE信令给状态呈现、群组管理以及即时消息服务器；
步骤P3：状态呈现、群组管理以及即时消息服务器向软交换服务器发送200 OK应答消息；
步骤P4：软交换服务器向成员终端1发送200 OK应答消息；
步骤P5：状态呈现、群组管理以及即时消息服务器向软交换服务器发送MESSAGE（Ftp信息:ip/port/usr/pwd/path）信令，将上传途径的信息发送给软交换服务器；
步骤P6：软交换服务器转发MESSAGE（Ftp信息:ip/port/usr/pwd/path）信令给成员终端1；
步骤P7：成员终端1向软交换服务器发送200 OK应答消息；
步骤P8：软交换服务器向状态呈现、群组管理以及即时消息服务器发送200 OK应答消息；
步骤P9：成员终端1向状态呈现、群组管理以及即时消息服务器发送FTP：PUT信令，将文件或者图片上传到状态呈现、群组管理以及即时消息服务器；
步骤P10：成员终端1向状态呈现、群组管理以及即时消息服务器发送MESSAGE（result）信令，将上传结果发送给状态呈现、群组管理以及即时消息服务器；
步骤P11：软交换服务器转发MESSAGE（result）信令给状态呈现、群组管理以及即时消息服务器；
步骤P12：状态呈现、群组管理以及即时消息服务器返回200 OK应答消息给软交换服务器；
步骤P13：软交换服务器转发200 OK应答消息给成员终端1；
步骤P14：状态呈现、群组管理以及即时消息服务器发送MESSAGE 信令给软交换服务器，信令携带文件或图片信息；
步骤P15：软交换服务器将接收到MESSAGE信令转发给成员终端2；
步骤P16：成员终端2返回200 OK应答信息给软交换服务器；
步骤P17：软交换服务器转发200 OK应答信息给状态呈现、群组管理以及即时消息服务器；
步骤P18：成员终端2发送MESSAGE（agree）信令给软交换服务器，表示同意接收文件或者图片；
步骤P19：软交换服务器转发MESSAGE（agree）信令给状态呈现、群组管理以及即时消息服务器；
步骤P20：状态呈现、群组管理以及即时消息服务器发送200 OK应答消息给软交换服务器；
步骤P21：软交换服务器转发200 OK应答消息给成员终端2；
步骤P22：状态呈现、群组管理以及即时消息服务器发送MESSAGE（ftp信息：ip/port/usr/pwd/path）信令给软交换服务器，将接收途径的信息发送给软交换服务器；
步骤P23：软交换服务器转发MESSAGE（ftp信息：ip/port/usr/pwd/path）信令给成员终端2；
步骤P24：成员终端2发送200 OK应答消息给软交换服务器；
步骤P25：软交换服务器转发200 OK应答消息给状态呈现、群组管理以及即时消息服务器；
步骤P26：成员终端2发送FTP：GET信令给状态呈现、群组管理以及即时消息服务器，成员2接收文件或者图片；
步骤P27：成员终端2发送MESSAGE（result）信令给软交换服务器，将接收结果发送给软交换服务器；
步骤P28：软交换服务器转发MESSAGE（result）信令给状态呈现、群组管理以及即时消息服务器；
步骤P29：状态呈现、群组管理以及即时消息服务器发送200 OK应答消息给软交换服务器；
步骤P30：软交换服务器转发200 OK应答消息给成员终端2。
临时讨论群组中其他成员（成员n）接收文件或者图片的过程与成员2的接收过程一致，不再赘述。
一种基于SIP协议的视频会议系统，包括：
创建会议单元，用于创建视频会议；
新成员入会单元，用于向会议成员发送视频会议邀请，会议成员接受邀请进入视频会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
调看与替换成员单元，用于调看与替换视频拼图中的成员；
信息交流单元，用于使视频会议成员之间进行信息交流。
作为进一步优选的实施方式，所述终端包括PC终端和手机终端，所述PC终端输出的拼图布局为2×3的布局，所述手机终端输出的拼图布局为3×2的布局。
作为进一步优选的实施方式，所述新成员入会单元包括第一模块，用于：
向会议成员发送视频会议邀请；
向会议服务器发送接受视频会议邀请的确认信息；
会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
作为进一步优选的实施方式，所述调看与替换成员单元包括第二模块，用于：
向会议服务器发送查看视频拼图中的成员的请求信息；
会议服务器将被请求查看的成员的视频流输出；
向会议服务器发出替换成员请求信息；
会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
作为进一步优选的实施方式，所述信息交流单元包括第三模块，用于：
向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
以上是对本发明的较佳实施进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可做出种种的等同变形或替换，这些等同的变形或替换均包含在本申请权利要求所限定的范围内。

Claims (10)

  1. 一种基于SIP协议的视频会议的实现方法，其特征在于，包括以下步骤：
    S1、创建视频会议；
    S2、向会议成员发送视频会议邀请，会议成员接受邀请进入视频
    会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
    S3、调看与替换视频拼图中的成员；
    S4、使视频会议成员之间进行信息交流。
  2. 根据权利要求1所述的基于SIP协议的视频会议的实现方法，其特征在于，
    所述终端包括PC终端和手机终端；
    自动输出不同视频拼图包括，如果与会成员使用的终端为PC终端，则输出的拼图布局为2×3的布局，如果与会成员使用的终端为手机终端，则输出的拼图布局为3×2的布局。
  3. 根据权利要求2所述的基于SIP协议的视频会议的实现方法，其特征在于，所述步骤S3包括以下步骤：
    S31、向会议服务器发送查看视频拼图中的成员的请求信息；
    S32、会议服务器将被请求查看的成员的视频流输出；
    S33、向会议服务器发出替换成员请求信息；
    S34、会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
  4. 根据权利要求3所述的基于SIP协议的视频会议的实现方法，其特征在于，所述步骤S4包括以下步骤：
    S41、向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
    S42、状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
    S43、使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
  5. 根据权利要求4所述的基于SIP协议的视频会议的实现方法，其特征在于，所述步骤S2包括以下步骤：
    S21、向会议成员发送视频会议邀请；
    S22、向会议服务器发送接受视频会议邀请的确认信息；
    S23、会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
    S24、会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
  6. 一种基于SIP协议的视频会议系统，其特征在于，包括：
    创建会议单元，用于创建视频会议；
    新成员入会单元，用于向会议成员发送视频会议邀请，会议成员接受邀请进入视频会议，根据参加会议使用的终端不同而自动向成员输出不同视频拼图；
    调看与替换成员单元，用于调看与替换视频拼图中的成员；
    信息交流单元，用于使视频会议成员之间进行信息交流。
  7. 根据权利要求6所述的基于SIP协议的视频会议系统，其特征在于，所述终端包括PC终端和手机终端，所述PC终端输出的拼图布局为2×3的布局，所述手机终端输出的拼图布局为3×2的布局。
  8. 根据权利要求7所述的基于SIP协议的视频会议系统，其特征在于，所述新成员入会单元包括第一模块，用于：
    向会议成员发送视频会议邀请；
    向会议服务器发送接受视频会议邀请的确认信息；
    会议服务器将新成员加入视频拼图，如果当前拼图已满即已有6人正在参与混屏，则新成员不参加拼图；否则在六分屏中寻找空闲位置，由该新成员填充；
    会议服务器根据拼图结果将视频拼图的具体布局信息发送给不同与会成员。
  9. 根据权利要求8所述的基于SIP协议的视频会议系统，其特征在于，所述调看与替换成员单元包括第二模块，用于：
    向会议服务器发送查看视频拼图中的成员的请求信息；
    会议服务器将被请求查看的成员的视频流输出；
    向会议服务器发出替换成员请求信息；
    会议服务器执行替换成员命令，并将替换后的视频拼图布局信息推送给所有与会成员。
  10. 根据权利要求9所述的基于SIP协议的视频会议系统，其特征在于，所述信息交流单元包括第三模块，用于：
    向状态呈现、群组管理以及即时消息服务器发起创建临时讨论组请求；
    状态呈现、群组管理以及即时消息服务器回应请求并创建临时讨论组；
    使临时讨论组成员通过软交换服务器和状态呈现、群组管理以及即时消息服务器进行文字信息交流和文件、图片传输。
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