CN110213526B - Video conference creation method, video conference system, storage medium, and electronic apparatus - Google Patents
Video conference creation method, video conference system, storage medium, and electronic apparatus Download PDFInfo
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Abstract
The invention provides a video conference creating method, a video conference system, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring a video conference creation request on a first Multipoint Control Unit (MCU) in a video terminal list, wherein a plurality of target video terminals are video terminals connected with the first MCU and/or video terminals connected with a second MCU, and the level of the second MCU is lower than that of the first MCU; under the condition that the video terminal list records MCUs in multi-level connection, each MCU of each level is connected with an MCU of an upper level under the condition that the MCU of the upper level exists, is connected with one or more MCUs of a lower level under the condition that the MCU of the lower level exists, and is connected with one or more video terminals, and the video terminals recorded in the video terminal list have unique terminal identifiers; and creating a video conference among the plurality of target video terminals.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a video conference creation method, a video conference system, a storage medium, and an electronic apparatus.
Background
In a video conference system, various participating devices such as a Multipoint Control Unit (MCU) video conference server and a hard terminal are included. In the system, a terminal collects image and sound and sends the image and sound to an MCU through coding. And the MCU fuses or does not fuse the images sent by the terminals according to the conference requirement and then sends the fused images to each participating terminal. Therefore, the audio and video conversation of the multi-party participants is realized. In some large projects, a client often requires to build and maintain a video conference system in a "hierarchical and weight-sharing" manner, for example, in a large project of a government organization, the whole system is planned and built according to administrative districts, and each level of unit is responsible for maintaining a video conference subsystem of the unit and simultaneously scheduling, managing and controlling the video conference subsystems of each level of unit under jurisdiction. For example: one organ system is divided into provincial level, city level, district level, county level and village level, the provincial level system can hold large conferences of all the conferenced terminals in the whole system, and the village level system can also hold small conferenced terminals in the jurisdiction range of the village system. In such an application environment, there are generally two types of conventional implementation methods, where the conventional scheme 1: the central management server + each stage of video conference subsystems; conventional scheme 2: and all the video conference systems are in common cascade connection.
In the conventional scheme 1, there is one central management server in the entire system, and all terminal devices are registered on the server. The terminal equipment is classified according to the administrative division organization tree, and then the added user authority is also managed according to the organization tree. In conventional scheme 2, each stage of the system can operate independently. And terminals at each level are registered to the MCU of the self organization. When in cascade connection, the conference is taken as a unit, namely, a superior conference takes a subordinate conference as a virtual terminal, and the subordinate conference takes the superior conference as a virtual terminal. The exchange of single-path audio and video stream can be realized between the upper and lower stages.
Therefore, in the conventional scheme 1, when a central management server fails, the whole system fails, so that the management and maintenance are frequent; although the conventional scheme 2 may also relate to a cascaded conference system, in the cascaded conference system, after a higher level holds a cascaded conference, conference terminals need to be added to each lower level, so that the operation complexity of holding the cascaded conference is high, and in addition, the higher level and the lower level can only exchange one path of audio, one path of presentation stream and one path of video, so when multiple pictures are merged, the pictures of the lower level terminals are often repeatedly encoded for many times, the picture quality is poor, the delay is high, and the problem of video quality reduction is caused.
Aiming at the problems of high complexity of management, maintenance and use, video quality reduction caused by repeated coding of video pictures and the like in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a video conference creating method, a video conference system, a storage medium and an electronic device, which are used for at least solving the problems of high complexity of management, maintenance and use, video quality reduction caused by repeated coding of video image quality and the like in the related technology.
According to an embodiment of the present invention, there is provided a video conference creation method including: acquiring a video conference creation request on a first Multipoint Control Unit (MCU) in a video terminal list, wherein the video conference creation request is used for requesting a video conference to be carried out among a plurality of target video terminals, the plurality of target video terminals are video terminals connected with the first MCU and/or video terminals connected with a second MCU, and the level of the second MCU is lower than that of the first MCU; under the condition that the video terminal list records MCUs in multi-level connection, for each MCU of each level, the MCU is connected with an MCU of an upper level under the condition that the MCU of the upper level exists, and is connected with one or more MCUs of a lower level and one or more video terminals under the condition that the MCU of the lower level exists, and the video terminals recorded in the video terminal list have unique terminal identifiers; and creating a video conference among the plurality of target video terminals.
According to another embodiment of the present invention, there is provided a video conference system including: a multi-stage connected multi-point control unit MCU; each MCU of each level is connected with an MCU of a previous level under the condition that the MCU of the previous level exists, connected with one or more MCUs of a next level under the condition that the MCU of the next level exists, and connected with one or more video terminals, and each video terminal has a unique terminal identification.
According to yet another embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of the above-mentioned method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in the above method embodiments.
The invention adopts a conference system structure formed by cascading a plurality of MCUs, and the video terminals recorded in the video terminal list have unique terminal identifiers, so that the simple and easy-to-use effect of the cascading conference can be realized, and the exchange of multi-path video streams can be realized between the upper and lower-level MCUs through forwarding, thereby the video streams are not required to be encoded for many times, and the effect of the video quality is ensured. The problems of high complexity of management, maintenance and use, video quality reduction caused by repeated coding of video image quality and the like in the related technology are effectively solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a video conference creation method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a video conference tree cascade structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a device list organizational tree structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fused layout configuration according to an embodiment of the present invention;
fig. 5 is a schematic diagram of upper and lower media stream exchange according to an alternative embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The proposal aims to realize a simple and easy-to-use hierarchical and weighted multistage cascade scheme which can ensure the conference effect. The invention is illustrated below:
in this embodiment, a video conference creating method is provided, and fig. 1 is a flowchart of a video conference creating method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, a video conference creation request is obtained from a first Multipoint Control Unit (MCU) in a video terminal list, wherein the video conference creation request is used for requesting a video conference among a plurality of target video terminals, the target video terminals are video terminals connected with the first MCU and/or video terminals connected with a second MCU, and the level of the second MCU is lower than that of the first MCU; under the condition that the video terminal list records MCUs in multi-level connection, for each MCU of each level, the MCU is connected with an MCU of an upper level under the condition that the MCU of the upper level exists, and is connected with one or more MCUs of a lower level and one or more video terminals under the condition that the MCU of the lower level exists, and the video terminals recorded in the video terminal list have unique terminal identifiers;
and step S104, creating a video conference among the plurality of target video terminals.
The first MCU may perform the above operations.
It can be known from the above method that the present invention adopts a conference system structure in which a plurality of MCUs are cascaded, wherein a video conference tree-shaped cascade structure can be referred to fig. 2 (fig. 2 is only an example, and there may be more stages in practical application), a device list organization tree structure can be referred to fig. 3 (fig. 3 is only an example, there may be more stages in practical application, and one cascade organization in fig. 3 includes MCUs, but there is no MCU in a common organization). The cascade conference is simple and easy to use, each MCU can directly initiate the cascade conference of all terminals of the governed cascade subtree through the WEB, the lower-level terminals are not required to be added on the WEB of the lower-level MCU, the cascade conference is simple and easy to use like a single-level MCU, and the workload of a user is greatly reduced. The MCU can be a server cluster, the account A logs in a webpage of the MCU of a certain level, and the MCU is pulled to see terminals of all child nodes in the jurisdiction range of the MCU of the certain level. In addition, the video terminal list is a cross-level tree-shaped video conference terminal list formed after a plurality of MCUs complete tree-shaped multistage cascading, and each MCU corresponds to one video terminal list, the video terminal list records the terminals to which each MCU directly belongs, and records the terminals recorded in the video terminal list of each lower MCU (i.e. the terminals on the organization tree of each lower MCU) under the condition that the lower MCU exists, because the video terminals recorded in the video terminal list have unique terminal identifiers (i.e. have unique terminal identifiers on the whole MCU cascading tree), the video streams sent by the terminals do not need to be subjected to temporary identity conversion, and the quality of the cascading conference merging pictures is excellent, the exchange of multiple video streams can be realized by forwarding between the upper and lower MCUs, so the terminal videos in the conference merging streams are repeatedly coded at most once, therefore, the quality of the conference video is ensured, the image quality is not rapidly reduced, and the time delay is not rapidly increased; optionally, in this embodiment, each MCU may also have a unique MCU identifier.
Therefore, the invention adopts a conference system structure formed by cascading a plurality of MCUs, and the video terminals recorded in the video terminal list have unique terminal identifiers, so that the simple and easy-to-use effect of the cascading conference can be realized, and the exchange of a plurality of paths of video streams can be realized between the upper and lower-level MCUs through forwarding, thereby the video streams are not required to be encoded for many times, and the quality effect of the video is ensured. The problems of high complexity of management, maintenance and use, video quality reduction caused by repeated coding of video image quality and the like in the related technology are effectively solved.
In an optional embodiment, the video conference creation request comprises: terminal identifications of the plurality of target video terminals, wherein creating a video conference among the plurality of target video terminals comprises: and creating a video conference among the plurality of target video terminals based on the terminal identifications of the plurality of target video terminals. In this embodiment, the video terminal list may be located in a first MCU, all video terminals in the jurisdiction range of the first MCU (i.e., the directly connected video terminal of the first MCU and the video terminals connected to other MCUs having a lower level than the first MCU) are recorded in the video terminal list, when the first MCU creates a conference, the directly belonging video terminals and each belonging subordinate video terminal may be directly pulled into the conference and pulled into a fusion layout, if it is found that a subordinate video terminal is pulled into the conference, the first MCU automatically initiates a conference creation request to the corresponding subordinate MCU, and takes parameters such as a participant terminal list and a layout terminal list. And each lower MCU automatically completes the creation of the lower conference. Optionally, a video terminal list may be configured in each stage of MCU, and all video terminals in the jurisdiction range of each stage of MCU are correspondingly displayed.
In an optional embodiment, after the video conference is created among the plurality of target video terminals, the method further comprises: under the condition that a first video terminal connected with the first MCU exists in the target video terminals, receiving a first video stream sent by the first video terminal on the first MCU; and receiving a second video stream of the second video terminal forwarded by the second MCU on the first MCU under the condition that the second video terminal connected with the second MCU exists in the target video terminals. In the embodiment, the video streams are transmitted between the MCUs in a forwarding mode, so that repeated coding is not needed, and the quality of the video is ensured.
In an optional embodiment, after the video conference is created among the plurality of target video terminals, the method further comprises: synthesizing the video streams of some or all of the target video terminals into one merged video stream on the first MCU (in practical application, synthesis into two or more merged video streams may also be considered, and in this embodiment, a merged video stream is taken as an example for description); under the condition that a first video terminal connected with the first MCU exists in the target video terminals, the path of fused video stream is sent to the first video terminal on the first MCU; and under the condition that a second video terminal connected with the second MCU exists in the target video terminals, the first MCU sends the path of fused video stream to the second video terminal through the second MCU. In this embodiment, the video stream may be merged according to a pre-configured merging layout configuration diagram, for example, the merging layout configuration diagram may be as shown in fig. 4, where the first-level terminal 1, the first-level terminal 2, the first-level terminal 3, the first-level terminal 4, the second-level terminal 1, the third-level terminal 1, the fourth-level terminal 2, and the fourth-level terminal 3 may perform merging layout according to a squared figure shown in fig. 4 (fig. 4 is only an example, and other layout manners may also be adopted in practical application).
In an optional embodiment, before synthesizing, on the first MCU, video streams of some of the target video terminals into a merged video stream, the method further includes: acquiring a selection instruction for selecting the part of the video terminals; and acquiring the video stream of the part of the video terminals under the instruction of the selection instruction.
In an optional embodiment, before the obtaining the video conference creation request on the first multipoint control unit MCU in the video terminal list, the method further comprises: acquiring the identifiers of one or more video terminals connected with the first MCU, and acquiring the identifiers of the video terminals connected with the second MCU under the condition that the second MCU exists; and under the condition that the MCU of the previous stage of the first MCU exists, reporting the acquired identifier of the terminal to the MCU of the previous stage of the first MCU. In this embodiment, each stage of MCU needs to know the identifiers of all video terminals under its jurisdiction, and optionally, the identifiers of all video terminals under jurisdiction may form a video terminal list.
The embodiment of the invention provides a video conference system, which comprises a multi-stage connected Multipoint Control Unit (MCU); each MCU of each level is connected with an MCU of a previous level under the condition that the MCU of the previous level exists, connected with one or more MCUs of a next level under the condition that the MCU of the next level exists, and connected with one or more video terminals, and each video terminal has a unique terminal identification.
In an optional embodiment, a first MCU of the MCUs connected in multiple stages is configured with a first type of interface, and in a case where the first MCU has an MCU of a previous stage, the first MCU is further configured with a second type of interface, and in a case where the first MCU has an MCU of a next stage, the first MCU is further configured with a third type of interface; the first type of interface is used for transmitting video streams with one or more video terminals connected with the first MCU; the second type interface is used for transmitting video streams with an MCU at the upper stage of the first MCU; and the third type interface is used for transmitting video stream with the MCU of the next stage of the first MCU. In the present embodiment, the number of each type of interface may be one or more.
In an optional embodiment, the second type of interface includes at least one interface, and is used for the first MCU to transmit video streams from different video terminals to an MCU at a higher stage of the first MCU. In this embodiment, there may be a plurality of interfaces for performing uplink video stream transmission between MCUs, and one interface corresponds to one video terminal; optionally, the third type of interface may include only one interface, that is, only one interface for performing downstream video stream transmission between the MCUs may be used, that is, the interface is used to transmit the video stream after fusion, and it should be noted that, in practical applications, the interface may also be used to transmit the video stream of the picture of the speaker (or the speaker) or the person being called.
In an optional embodiment, the first class of interfaces includes a first class of subinterfaces and a second class of subinterfaces, where, when there are multiple video terminals connected to the first MCU, the first class of subinterfaces includes multiple interfaces, which are respectively used to receive video streams from the multiple video terminals connected to the first MCU; and the second-class sub-interface is used for transmitting video streams to one or more video terminals connected with the first MCU. Optionally, the second type of sub-interface may include only one interface, and in this embodiment, each MCU may include a plurality of interfaces respectively corresponding to different terminals, and be configured to receive video streams uploaded by different terminals.
In an optional embodiment, a video terminal list is configured in the first MCU, where the video terminal list records an identifier of a video terminal connected to the first MCU and an identifier of a video terminal connected to a second MCU, and a level of the second MCU is lower than a level of the first MCU.
In an alternative embodiment, the video conference system is configured to perform any one of the video conference creation methods described above.
The video conference system can realize simple and easy-to-use multistage conference cascade of hierarchical division and support the switching of the upper and lower stages of multi-channel videos, thereby supporting the fusion layout of the multi-channel lower-stage terminal videos to the conference and avoiding the effect of poor image quality and large delay.
Some implementation details of the present invention are described below:
multi-stage cascading meeting management layer logic:
when each stage of MCU is initialized, a full-tree unique MCU id, called MCUID, may be configured manually or by a root node MCU (i.e., an MCU in the first-stage cascade organization in fig. 3). The MCUID is unique across the entire tree.
And the root node MCU on the whole cascade tree is responsible for carrying out uniqueness check on the MCUIDs of all the cascade MCUs, and if not, carrying out error reporting and rejecting cascade.
And the root node MCU on the whole cascade tree can automatically distribute the unused MCUID to the newly added MCU at the same time so as to reduce the workload of manual configuration.
When the MCU at each level adds the directly-owned device, the terminal ID may be generated according to a certain format, for example, according to the following format: 2-bit type + 3-bit MCUID + 3-bit home-level unique number. Due to the uniqueness of the MCUID, the terminal ID is completely tree-unique, wherein the type and the number of the MCUID can be adjusted according to requirements, for example, the MCUID can also be a two-digit number.
The MCU of each level can add the subordinate MCU of the direct genus on the organization tree corresponding to the MCU of each level, but can not add the MCU of the subordinate.
Each MCU reports the device list on the organization tree of each lower MCU and the device list of the direct MCU and each lower MCU to the upper MCU, so that each MCU can see all terminals of the subtrees in the scope of the MCU.
When the MCU of each level establishes the conference, the directly-affiliated terminal and each affiliated subordinate terminal can be directly pulled into the conference and dragged into the fusion layout, if the subordinate terminal is found to be pulled into the conference, the MCU automatically initiates a conference creation request to the corresponding subordinate MCU, and parameters such as a conferee terminal list and a layout entering terminal list are taken. And each lower MCU automatically completes the creation of the lower conference.
Multi-stage cascading conferencing media layer logic:
a media stream switching channel is formed between the upper conference and the lower conference through a pair of analog terminals (as shown in fig. 5), wherein the terminal type 18 may be set as a main field analog terminal, and the terminal type 17 may be set as a guest field analog terminal (this setting manner is merely an example, and other setting manners may also be adopted in practical applications).
The main field simulation terminal is responsible for requesting multi-channel video streams required by a subordinate, and sending the multi-channel video streams to the subordinate MCU through the passenger field simulation terminal, and the video stream list is determined by the attendee attribute privateLayoutSSRCs.
The passenger field simulation terminal is responsible for requesting multi-channel video streams required by a superior, and sending the multi-channel video streams to the superior MCU through the main field simulation terminal, and the video stream list is determined by the participant attribute privateLayoutSSRCs.
Since the terminal ID is unique in the full tree, the unique identifier SSRC value of the terminal video stream may be terminal ID × 10+2 (this setting is only an example, as long as the SSRC is guaranteed to be unique), so the terminal SSRC is also unique in the full tree, and the SSRC value remains unchanged during the exchange of the upper and lower-level video streams.
And the attribute privateLayoutSSRCs of the conferees of the simulation terminal is automatically generated according to the fusion layout filling condition of each level of conference when the conference is established.
In order to save server resources, the "video conference cascade gateway" software is generally run on a server of an upper-level video conference system, and can also be run on a server of a lower-level video conference system.
The following illustrates the database design involved in the embodiments of the present invention:
adding a field organization mechanism code in an Org table;
2. adding an MCUID table, maintaining the MCUID and mainly comprising fields such as MCU ID, MCU IP, MCU SERIAL and the like, wherein the MCUID value range is 1-999;
3. and (3) adding an analog terminal in an attribute field in the conference table:
a)17 denotes a hybrid cascaded MCU room analog terminal (dynamic) in the format "17 + room MCUID + room conference ID", e.g. 17113817;
b)18 denotes a hybrid cascaded MCU home analog terminal (dynamic) in the format "18 + passenger MCUID + home conference ID", e.g. 18118172;
c) MCUID is a character string of 3 digits; the conference number is a 4-digit character string, the first digit is fixed to 0, and only the last three digits are used when the terminal IDs 17, 18, and 10 are combined.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
Through the embodiment of the invention, the following beneficial effects can be achieved:
the cascade conference is simple and easy to use; and each MCU can directly initiate the cascading conference of all terminals of the managed cascading subtrees through the WEB, the lower-level terminals are not required to be added on the WEB of the lower-level MCU, the method is simple and easy to use like a single-level MCU, and the workload of a user is greatly reduced.
The quality of the fused picture of the cascade conference is excellent; the exchange of multi-channel video streams is realized by forwarding between the upper and lower MCU, so the terminal video in the conference merging stream is repeatedly coded at most once, thereby ensuring the quality of the conference video, and the image quality and the time delay are not sharply reduced and increased.
Each level of video conference system is managed in a grading way and operates independently, and no single-point fault point exists; each MCU can independently operate, and only manages the own directly-affiliated terminal and the own directly-affiliated subordinate organization (including common organization and cascaded MCU organization), thereby meeting the requirements of special user plane and grading and sharing rights. Any MCU fails, and the function of independent operation of other MCUs at each level cannot be influenced.
The network bandwidth overhead between the upper and lower levels is low; and aiming at the downlink bandwidth, all the subordinate terminals multiplex the single-path video stream input of the passenger field simulation terminal. For the uplink bandwidth, only the terminal video entering the upper fusion layout is sent to the upper MCU, so as to realize uplink on demand (the MCU of the conference initiator determines whether the terminal needs to send the uplink video according to the fusion layout setting, and if the second-level terminal 1 is called, the fourth-level MCU informs the fourth-level terminals 1-3 that the uplink video can not be sent).
The network topology applicability is strong, and a tree network is supported.
The configuration of the cascade conference is flexible; any number of terminals under any organization can be configured in the fusion layout.
Cascading conferences support more deep levels of multi-level cascading above three levels.
Supporting a large conference of tens of thousands of people; as each terminal registers and participates in the MCU of the terminal in the scheme and the service pressure is dispersed on servers at all levels, higher concurrent video conferences can be supported.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A video conference creation method, comprising:
acquiring a video conference creation request on a first Multipoint Control Unit (MCU) in a video terminal list, wherein the video conference creation request is used for requesting a video conference to be carried out among a plurality of target video terminals, the plurality of target video terminals are video terminals connected with the first MCU and/or video terminals connected with a second MCU, the first MCU and the second MCU are MCU nodes on an entire cascade tree in multi-level connection, and the level of the second MCU is lower than that of the first MCU; under the condition that the video terminal list records MCUs in multi-level connection, for each MCU of each level, the MCU is connected with an MCU of an upper level under the condition that the MCU of the upper level exists, and is connected with one or more MCUs of a lower level and one or more video terminals under the condition that the MCU of the lower level exists, and the video terminals recorded in the video terminal list have unique terminal identifiers;
creating a video conference among the plurality of target video terminals;
wherein after the video conference is created among the plurality of target video terminals, the method further comprises:
under the condition that a second video terminal connected with the second MCU exists in the target video terminals, receiving a second video stream of the second video terminal forwarded by the second MCU on the first MCU;
wherein the second video stream is a video stream that is not encoded by the second MCU;
the method further comprises the following steps: when each level of MCU on the whole cascaded tree is initialized, unique MCUIDs are respectively configured for each level of MCU on the whole cascaded tree through a root node MCU on the whole cascaded tree, wherein the MCUIDs configured for each level of MCU on the whole cascaded tree by the root node MCU are different;
carrying out uniqueness check on MCUIDs of the MCUs at each level on the whole cascaded tree through the root node MCU, and reporting errors and rejecting the cascade connection of the MCUs on the whole cascaded tree when at least two MCUs use the same MCUID on the whole cascaded tree;
and allocating unused MCUIDs to the newly added MCUs through the root node MCUs.
2. The method of claim 1, wherein the video conference creation request comprises: terminal identifications of the plurality of target video terminals, wherein creating a video conference among the plurality of target video terminals comprises:
and creating a video conference among the plurality of target video terminals based on the terminal identifications of the plurality of target video terminals.
3. The method of claim 1, wherein after the video conference is created among the plurality of target video terminals, the method further comprises:
and receiving a first video stream sent by a first video terminal on the first MCU under the condition that the first video terminal connected with the first MCU exists in the target video terminals.
4. The method of claim 1, wherein after the video conference is created among the plurality of target video terminals, the method further comprises:
combining the video streams of part or all of the target video terminals into a merged video stream on the first MCU;
under the condition that a first video terminal connected with the first MCU exists in the target video terminals, the path of fused video stream is sent to the first video terminal on the first MCU;
and under the condition that a second video terminal connected with the second MCU exists in the target video terminals, the first MCU sends the path of fused video stream to the second video terminal through the second MCU.
5. The method according to claim 4, wherein before synthesizing the video streams of some of the plurality of target video terminals into a merged video stream at the first MCU, the method further comprises:
acquiring a selection instruction for selecting the part of the video terminals;
and acquiring the video stream of the part of the video terminals under the instruction of the selection instruction.
6. The method of claim 1, wherein before obtaining the video conference creation request at the first Multipoint Control Unit (MCU) in the video terminal list, the method further comprises:
acquiring the identifiers of one or more video terminals connected with the first MCU, and acquiring the identifiers of the video terminals connected with the second MCU under the condition that the second MCU exists;
and under the condition that the MCU of the previous stage of the first MCU exists, reporting the acquired identifier of the terminal to the MCU of the previous stage of the first MCU.
7. A video conferencing system, comprising:
the whole cascade tree comprises a multi-stage connected multipoint control unit MCU;
each MCU of each stage is connected with an MCU of the previous stage under the condition that the MCU of the previous stage exists, connected with one or more MCUs of the next stage under the condition that the MCU of the next stage exists, and connected with one or more video terminals, and each video terminal has a unique terminal identifier;
a video terminal list is configured in a first MCU included in the MCUs connected in the multi-stage manner, wherein the video terminal list records an identifier of a video terminal connected with the first MCU and an identifier of a video terminal connected with a second MCU, and the level of the second MCU is lower than that of the first MCU;
receiving a second video stream of a second video terminal forwarded by a second MCU on the first MCU under the condition that the second video terminal connected with the second MCU exists in the plurality of target video terminals;
wherein the second video stream is a video stream that is not encoded by the second MCU;
the first MCU and/or the second MCU are/is used for adding directly-owned equipment to the corresponding multi-level connected organization tree so that each-level MCU directly performs layout management on the directly-owned equipment, wherein the directly-owned equipment at least comprises the MCU and a terminal;
the root node MCU on the whole cascaded tree is used for configuring unique MCUIDs for the MCUs at all levels on the whole cascaded tree when the MCUs at all levels on the whole cascaded tree are initialized, wherein the MCUIDs configured by the root node MCU for the MCUs at all levels on the whole cascaded tree are different;
the root node MCU is also used for carrying out uniqueness check on the MCUIDs of the MCUs at each level on the whole cascaded tree, and carrying out error reporting and rejecting the cascade connection of the at least two MCUs on the whole cascaded tree under the condition that the at least two MCUs use the same MCUID on the whole cascaded tree;
and the root node MCU is also used for distributing an unused MCUID to the newly added MCU.
8. The video conference system according to claim 7, wherein a first MCU of said MCUs connected in multiple stages is configured with a first type of interface, and in case that there is an MCU of a previous stage in said first MCU, there is a second type of interface in said first MCU, and in case that there is an MCU of a next stage in said first MCU, there is a third type of interface in said first MCU;
the first type of interface is used for transmitting video streams with one or more video terminals connected with the first MCU; the second type interface is used for transmitting video streams with an MCU at the upper stage of the first MCU; and the third type interface is used for transmitting video stream with the MCU of the next stage of the first MCU.
9. The video conferencing system of claim 8,
the second type of interface comprises at least one interface, and is used for the first MCU to transmit video streams from different video terminals to the MCU at the upper stage of the first MCU.
10. The video conferencing system of claim 8, wherein the first class of interfaces comprises a first class of subinterfaces and a second class of subinterfaces, wherein,
when a plurality of video terminals connected with the first MCU are provided, the first type of sub-interface comprises a plurality of interfaces which are respectively used for receiving video streams from the plurality of video terminals connected with the first MCU;
and the second-class sub-interface is used for transmitting video streams to one or more video terminals connected with the first MCU.
11. The video conferencing system of claim 7, wherein the video conferencing system is configured to perform the method of any of claims 1 to 6.
12. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 6 when executed.
13. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 6.
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| CN113014851A (en) * | 2019-12-19 | 2021-06-22 | 中兴通讯股份有限公司 | Video conference creating method, template generating method, device and storage medium |
| CN112311750B (en) * | 2020-02-28 | 2022-07-12 | 北京字节跳动网络技术有限公司 | Interaction method and device and electronic equipment |
| CN111711784B (en) * | 2020-06-15 | 2022-10-18 | 北京字节跳动网络技术有限公司 | Conference control method and device, readable medium and electronic equipment |
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| CN113301292B (en) * | 2021-05-13 | 2023-08-18 | 广州市迪士普音响科技有限公司 | Audio/video conference MCU cascading method, system, equipment and storage medium |
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