WO2016197885A1

WO2016197885A1 - Method and device for managing media cascade

Info

Publication number: WO2016197885A1
Application number: PCT/CN2016/084781
Authority: WO
Inventors: 范长博
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-06-10
Filing date: 2016-06-03
Publication date: 2016-12-15
Also published as: CN106302363A

Abstract

A method and device for managing a media cascade. The method comprises: acquiring media channel parameters of two or more media processes, constructing media channel opening signalling according to the media channel parameters, and sending the constructed media channel opening signalling to the media processes, so as to open an audio-video media cascade channel between the media processes, so that the problems that the implementation flow of a media cascade is complicated and the add-on conference call time is long are solved, thereby simplifying the implementation flow of the media cascade and shortening the add-on conference call time.

Description

Method and device for managing media cascade

Technical field

This document relates to, but is not limited to, the field of cloud computing, and in particular, to a method and device for managing media cascade.

Background technique

With the rapid development of the Internet and cloud computing, cloud video conferencing systems have become a new trend. The Multipoint Control Unit (MCU) has begun to transition from hardware MCUs to soft MCUs. This is also a trend in the development of video conferencing systems towards the Internet.

In the related art, a cloud video conferencing system generally needs to consider a media cascading scenario. In the traditional hard MCU system, the processing of the media cascade is because two or more hard MCUs must be cascaded together. Therefore, the traditional hard MCU system processes the cascaded scene, not only the media to be cascaded, but also the signaling processing. Also cascade. In the current cloud video conferencing system, a Session Initiation Protocol (SIP)/H323 call is established between two media processes, and media signaling is constructed and transmitted through the SIP/H323 protocol. The media process that needs to be cascaded is a relatively mature solution strategy. However, this implementation strategy not only implements complex processes for the media, but also adds signaling cascades in the cloud video conferencing media cascade, and the time on the call will also become longer.

In view of the related art, the implementation process of the media cascading is complicated, and the call will take a long time, and no effective solution has been proposed yet.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiments of the present invention provide a method and an apparatus for managing media concatenation, so as to at least solve the problem that the implementation process of the media concatenation in the related art is complicated and the call takes a long time.

According to an aspect of an embodiment of the present invention, a method for managing a media concatenation includes:

Get media channel parameters of two or more media processes;

Constructing a media channel open signaling according to the media channel parameter;

Transmitting the constructed media channel to open the signaling to the media process to open an audio and video media cascade channel between the media processes.

Optionally, the method further includes: before acquiring media channel parameters of two or more media processes,

Receiving terminal access information reported by the call service;

Extracting an identifier of the media process from the received terminal access information;

The identifier is used to obtain media channel parameters of the media process.

Optionally, the media process includes at least one of the following: a call media service, a conference media service.

Optionally, the audio and video media cascade channel between the open media processes includes at least one of the following:

Transmitting the media channel open signaling to the call media service and the conference media service to open the audio and video media cascade channel between the call media service and the conference media service;

Transmitting the media channel open signaling to the two conference media services to open the audio and video media cascade channel between the two conference media services.

Optionally, the management method further includes, after the opening the audio and video media cascade channel between the media processes,

After receiving the hangup information reported by the call service, constructing a media channel off signaling;

Transmitting the constructed media channel off signaling to the media process to close the audio and video media cascade channel between the media processes.

Optionally, the media channel parameter includes at least one of the following: an IP address, a port number.

According to another aspect of the embodiments of the present invention, a device for managing media concatenation, including:

The obtaining module is configured to obtain media channel parameters of two or more media processes;

The building module is configured to construct a media channel open signaling according to the media channel parameter;

The opening module is configured to send the constructed media channel open signaling to the media process to open an audio and video media cascade channel between the media processes.

Optionally, the device further includes:

The access module is configured to receive terminal access information reported by the call service;

The identifier module is configured to extract an identifier of the media process from the received terminal access information;

The identifier is used to obtain media channel parameters of the media process.

Optionally, the opening module includes:

The first opening unit is configured to send the media channel open signaling to the call media service and the conference media service to open an audio and video media cascade channel between the call media service and the conference media service ;

The second opening unit is configured to send the media channel open signaling to the two conference media services to open an audio and video media cascade channel between the two conference media services.

Optionally, the device further includes:

The reporting module is configured to: after receiving the hang up information reported by the call service, construct a media channel off signaling;

The shutdown module is configured to send media channel off signaling to the media process to close the audio and video media cascade channel between the media processes.

According to the embodiment of the present invention, media channel parameters of two or more media processes are obtained, media channel open signaling is constructed according to the media channel parameters, and the media channel is opened to send signaling to the media process, and the media process is opened. The audio and video media cascading channel solves the problem that the implementation process of the media cascading is complicated and the call takes a long time, thereby simplifying the implementation process of the media cascading and shortening the time of the call.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart of a method for managing media concatenation according to an embodiment of the present invention;

2 is a structural block diagram of a media cascading management apparatus according to an embodiment of the present invention;

3 is a schematic structural diagram of a system of a cloud video conference system according to the related art;

4 is a flowchart of a method for establishing a cascaded channel between two media processes of a cloud video conferencing system according to an alternative embodiment of the present invention;

FIG. 5 is a flowchart of a method for cascading channels between two media processes of a cloud video conferencing system according to an alternative embodiment of the present invention.

Embodiments of the invention

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a method for managing media concatenation is provided. FIG. 1 is a flowchart of a method for managing media concatenation according to an embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:

Step 102: Obtain media channel parameters of two or more media processes.

Step 104: Construct media channel open signaling according to media channel parameters.

Step 106: Send the constructed media channel to open the signaling to the media process to open the audio and video media cascade channel between the media processes.

Through the foregoing steps, the media channel parameters of two or more media processes are obtained, the media channel open signaling is constructed according to the media channel parameters, and the media channel is opened to signal the media process to open the audio and video media between the media processes. The cascading channel eliminates the need for a complex process of signaling cascaded media after the call, and solves the problem that the implementation process of the media cascading is complicated and the call takes a long time, thereby simplifying the implementation process of the media cascading and shortening the process. There will be time on the call.

In this embodiment, there may be many ways to obtain media channel parameters of two or more media processes, where terminal access information reported by the call service may be received, and the terminal access information may be received. The identifier of the media process is proposed; the identifier of the extracted media process is used to obtain the media channel parameter of the media process.

In this embodiment, the media process may include at least one of the following: a call media service, a conference media service;

Optionally, there are multiple ways to open the audio and video media cascade channel between the media processes, where the media channel open signaling can be sent to the call media service and the conference media service, and the call media service and the conference media service are opened. Audio and video media cascade channel;

It is also possible to send media channel open signaling to two conference media services, and open an audio and video media cascade channel between the two conference media services.

In this embodiment, there may be multiple methods for removing the audio and video media cascade channel; wherein, optionally, after receiving the hangup information reported by the call service, constructing a media channel off signaling, and transmitting a media channel off signaling Give the media process to close the audio and video media cascade channel between the media processes.

In the above embodiment, the media channel parameters may include: an Internet Protocol (IP) address, a port number.

The method of the embodiment of the present invention can be implemented by selecting any server or terminal that can be implanted, including a LINUX server, or other server with an operating system installed.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute a media cascade management method.

In the embodiment, a management device for media cascading is provided, which is used to implement the foregoing embodiments and optional implementations, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the devices described in the following embodiments are implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable.

FIG. 2 is a structural block diagram of a media cascading management apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes:

The obtaining module 22 is configured to obtain media channel parameters of two or more media processes;

The building module 24 is configured to construct a media channel open signaling according to the media channel parameter;

The opening module 26 is configured to send the constructed media channel to open the signaling to the media process, and open the audio and video media cascade channel between the media processes.

The media channel parameters of the two or more media processes are obtained by the foregoing device, the media channel open signaling is constructed according to the media channel parameters, the media channel is opened to signal the media process, and the audio and video media level between the media processes is opened. The joint channel eliminates the need for a call and then signals the complex process of the cascaded media, which solves the problem that the implementation process of the media cascade is complicated and the call takes a long time, thereby simplifying the implementation process of the media cascade and shortening the call. There will be time.

In this embodiment, the device further includes:

The identifier module is configured to: propose an identifier of the media process from the received terminal access information;

The identifier of the extracted media process is used to obtain media channel parameters of the media process.

In this embodiment, the opening module 26 includes:

The first opening unit is configured to send the media channel open signaling to the call media service and the conference media service to open an audio and video media cascade channel between the call media service and the conference media service;

The second opening unit is configured to send the media channel open signaling to the two conference media services to open the audio and video media cascade channel between the two conference media services.

In this embodiment, the device further includes:

The shutdown module is configured to send the media channel off signaling to the media process to close the audio and video media cascade channel between the media processes.

The present invention will be described in detail below with reference to the embodiments and embodiments.

This embodiment relates to the field of cloud video conferencing systems in which media is cascaded, and particularly relates to a cloud video conferencing system in which media is cascaded, which is constructed by a main service process and centrally manages media signaling to control each two media. A method of creating and tearing down media cascading channels between body processes.

In this embodiment, the media process of the servers in different areas is cascaded, and the media signaling is not established by establishing a SIP/H323 call, and the media signaling is transmitted, that is, the signaling cascade is implemented. Instead, the main business process constructs and centrally manages the media signaling, and sends the media signaling to the media process that needs to establish the media concatenation, thereby establishing a strategy for the audio and video channel connection and the audio and video channel to be removed between the media processes.

The conference service service processing process deployed in the embodiment of the present invention includes:

The conference service process is also called the main service process, which is different from the related technology (that is, if a cascade is established between two media processes, a SIP/H323 call is first established between two media processes, and then each media process is called through a SIP/H323. The established connection acquires the audio and video media channel parameters of the peer end, and each media process further opens an audio and video channel to the peer media process), that is, if the media cascading of the two media is established, the main business process starts from each The media process obtains the media channel parameters (including the IP and the port), and then, when the audio and video channel is established between the two media processes, the main service process constructs the media channel open letter according to the acquired audio and video parameters of the two media processes. Order and send to both media processes. At the same time, if the conference service needs to remove the audio and video channel connection established by the two media processes, the conference service needs to construct the media channel off signaling and send it to the media channel to close the two media processes.

The conference media process is used to implement audio mixing and forwarding, video forwarding of two or more call media services in a conference, and under the control of conference services, with the call media service and other areas in the area. The conference media service establishes a media cascade channel.

The call media process is used to receive the audio and video code stream from the terminal, and perform quality of service (QoS), forward error correction (FEC), decryption, and decoding processing as needed. The processed code stream is sent to the accessed conference media service; at the same time, the audio and video code stream from the conference media service is received, and then encoded and then subjected to FEC and encryption processing as needed, and sent to the terminal.

The call service process is a bridge for signaling interworking between the cloud video conferencing system and the terminal, and manages the establishment and removal of audio and video channels between the call media service and the terminal.

In this embodiment, the central conference service node uniformly performs media channel management between each media service process within the distributed system. And avoid every two media service processes (including call media services) When media cascading between conference and conference media service cascading, conference media service and conference media service cascading), a call signaling cascading strategy is also required between the two media processes. Thereby, the process of implementing the media cascading in the distributed multi-picture mode is optimized, the speed of the call is improved, and the basis for the seamless switching of the central conference service node in the distributed system is laid.

FIG. 3 is a schematic diagram of a network structure of a cloud video conferencing system according to the related art, as shown in FIG. 3, wherein a Remote Procedure Call is a signaling channel, and a Real-time Transport Protocol (RTP) is Media stream channel.

This embodiment provides a method for performing centralized management of media services and signaling in a distributed cloud video conferencing system. The method uses a cross-regional networking, and each conference media service processes a policy of one region.

It should be noted that the process in FIG. 3 may be run on one or more servers in the cloud video conferencing system, or may be separately operated on one or more servers or terminals that the cloud video conferencing system communicates or connects.

4 is a flowchart of a method for establishing a cascading channel between two media processes of a cloud video conferencing system according to an alternative embodiment of the present invention. As shown in FIG. 4, this embodiment provides a terminal call cloud video conference system, a conference. A method of establishing a cascaded channel between two media processes for serving a call medium and a conference medium in a region to which the call media belongs. The method includes the following steps:

S401. The terminal accesses the call service and the call media of the area, and after the terminal and the call media service establish a media channel, the call service reports the terminal access information (including the call media identifier corresponding to the terminal and the regional conference media identifier) to the terminal. Conference Services.

In the embodiment of the present invention, the call service may be processed by a process in charge of the terminal accessing the Micro Control Unit (MCU) server.

S402. The conference service processes the terminal access information reported by the call service.

The conference service process extracts the call media identifier and the regional conference media logo from the terminal access information. And handle call status

S403. The conference service separately obtains audio and video media channel parameters (including IP and port) from the calling media service and the regional conference media.

At this time, if the acquisition fails, the conference service directly hangs up the call. If the acquisition is successful, then go. Next step.

The S404 conference service constructs media channel open signaling according to the audio and video media channel parameters obtained from the call media service and the regional conference media service, and sends the media channel open signaling to the call media service and the conference media service, thereby opening the call media service and the regional conference media. Audio and video media cascade channel.

The S405 terminal will succeed, and the conference service sets the call status.

The processes in the embodiments of the present invention may be run on one or more servers in the cloud video conferencing system, or may be separately operated on one or more servers or terminals in which the cloud video conferencing system communicates or connects.

FIG. 5 is a flowchart of a method for removing a cascaded channel between two media processes in a cloud video conferencing system according to an alternative embodiment of the present invention. As shown in FIG. 5, the conference service performs the call media and the conference media in the area to which the call media belongs. A method for cascading channels between media processes, the method comprising the following steps:

S501. The call service reports a call hangup message to the conference service.

In this step, the call service is a transparent transmission function of signaling. When the terminal hangs up, the call service receives the call hangup message reported by the protocol.

S502: After receiving the call hangup, the conference service constructs and closes the media channel signaling.

S503. The conference service delivers the closed audio and video media channel signaling to the conference media service in the area where the call media service and the call media service belong.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, 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 (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (can be a mobile phone, a computer, A server, or network device, etc.) performs the method described in each of the embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the method steps of the following embodiments:

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A medium such as a disc or an optical disc that can store program code.

Optionally, in this embodiment, the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.

Obviously, those skilled in the art should understand that each module or step of the above described invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed among multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The above technical solution simplifies the implementation process of the media cascading and shortens the time of the call.

Claims

A management method of media cascade, the management method includes:

Get media channel parameters of two or more media processes;

Constructing a media channel open signaling according to the media channel parameter;

Transmitting the constructed media channel to open the signaling to the media process to open an audio and video media cascade channel between the media processes.
The management method according to claim 1, further comprising: before acquiring media channel parameters of two or more media processes,

Receiving terminal access information reported by the call service;

Extracting an identifier of the media process from the received terminal access information;

The identifier is used to obtain media channel parameters of the media process.
The management method according to claim 1, wherein the media process comprises at least one of: a call media service, a conference media service.
The management method according to claim 3, wherein the audio and video media cascade channel between the open media processes comprises at least one of the following:

Transmitting the media channel open signaling to the call media service and the conference media service to open the audio and video media cascade channel between the call media service and the conference media service;

Transmitting the media channel open signaling to the two conference media services to open the audio and video media cascade channel between the two conference media services.
The management method according to claim 1, further comprising, after the opening of the audio and video media cascade channel between the media processes,

After receiving the hangup information reported by the call service, constructing a media channel off signaling;

Transmitting the constructed media channel off signaling to the media process to close the audio and video media cascade channel between the media processes.
The management method according to any one of claims 1 to 5, wherein the media channel parameter The number includes at least one of the following: IP address, port number.
A media cascade management device, the management device comprising:

The obtaining module is configured to obtain media channel parameters of two or more media processes;

The building module is configured to construct a media channel open signaling according to the media channel parameter;

The opening module is configured to send the constructed media channel open signaling to the media process to open an audio and video media cascade channel between the media processes.
The management device according to claim 7, wherein the management device further comprises:

The access module is configured to receive terminal access information reported by the call service;

The identifier module is configured to extract an identifier of the media process from the received terminal access information;

The identifier is used to obtain media channel parameters of the media process.
The management device according to claim 7, wherein the media process comprises at least one of: a call media service, a conference media service.
The management device according to claim 9, wherein the opening module comprises:

The first opening unit is configured to send the media channel open signaling to the call media service and the conference media service to open an audio and video media cascade channel between the call media service and the conference media service ;

The second opening unit is configured to send the media channel open signaling to the two conference media services to open an audio and video media cascade channel between the two conference media services.
The management device according to claim 7, wherein the management device further comprises:

The reporting module is configured to: after receiving the hang up information reported by the call service, construct a media channel off signaling;

The shutdown module is configured to send media channel off signaling to the media process to close the audio and video media cascade channel between the media processes.
The management device according to any one of claims 7 to 11, wherein the media channel parameter comprises at least one of the following: an IP address, a port number.