CN110149492B

CN110149492B - Resource allocation method and device

Info

Publication number: CN110149492B
Application number: CN201910267187.4A
Authority: CN
Inventors: 赵振华; 王艳辉; 亓娜; 袁占涛
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2021-07-09
Anticipated expiration: 2039-04-03
Also published as: CN110149492A

Abstract

The embodiment of the invention provides a resource allocation method, which is applied to a video network server and comprises the following steps: confirming whether the number of external domain terminals to be added into the current polling is larger than the split screen number of the polling terminal, and if so, applying for bridging resources with the same number as the split screen number; grouping the external domain terminals according to the split screen number to obtain at least one external domain terminal group; allocating the bridge resource of the application to each of the at least one external domain terminal group in turn so that each external domain terminal group joins the current poll through the bridge resource in turn; and releasing the bridging resources under the condition that all external domain terminal groups finish the current polling.

Description

Resource allocation method and device

Technical Field

The present invention relates to the field of video networking technologies, and in particular, to a resource allocation method and a resource allocation apparatus.

Background

With the rapid development of network technologies, bidirectional communication such as video conferences and video teaching is widely popularized in the aspects of life, work, learning and the like of users, and plays an active role in life and work application.

When video conference service is performed through the video network, audio and video data of a plurality of terminals often need to be polled and played, so that smooth conference is ensured. However, when the conference terminals of the same conference belong to different video networking environments (domains), the bridge server is required to provide bridge resources to enable the polling.

For the purpose of distinction, a domain in which a polling terminal receiving audio and video streams is located is called a main domain, and other domains are called external domains. Since the bridging resources are virtual terminals that are one-to-one and can perform data transmission, generally speaking, when an external domain terminal participates in the main domain polling, one bridging resource is occupied, but the bridging resource is originally limited, and this usage mode further aggravates the situation of tense usage of the bridging resource, so that the service efficiency is low.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a resource allocation method and a corresponding resource allocation apparatus that overcome or at least partially solve the above problems.

In order to solve the above problems, an embodiment of the present invention discloses a resource allocation method, which is applied to a video network, where the video network includes a video network terminal resource management platform and a video network terminal, and the method includes: if the video network terminal receives a service state display request, acquiring a service state value of the video network terminal through the video network terminal resource management platform; and the video network terminal draws an external domain terminal participation polling graph according to the service state value so as to show the service state of the video network terminal.

The embodiment of the invention also discloses a resource allocation device, which is applied to the video network, wherein the video network comprises a video network terminal resource management platform and a video network terminal, and the device comprises: the service state display request receiving module is used for acquiring a service state value of the video network terminal through the video network terminal resource management platform if the video network terminal receives a service state display request; and the external domain terminal participation polling graph drawing module is used for drawing an external domain terminal participation polling graph by the video network terminal according to the service state value so as to show the service state of the video network terminal.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, in the polling process of the polling terminal, when the number of the split screens of the polling terminal is less than the number of the external domain terminals in the polling queue, the video networking conference control server only applies the bridging resources with the number equal to the number of the split screens of the polling terminal to the bridging server, and because the number of the terminals participating in the polling at the time is not greater than the number of the split screens of the polling terminal, only the bridging resources with the number equal to the number of the split screens of the polling terminal are applied to be used in the whole polling process, and the corresponding bridging resources do not need to be applied for each external domain terminal for fixed mapping, so that the problem of bridge resource shortage is solved, and the current polling efficiency of the.

Drawings

FIG. 1 is a schematic networking diagram of a video network of the present invention;

FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;

fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;

fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;

FIG. 5 is a flowchart illustrating the steps of an embodiment of a method for allocating resources;

FIG. 6 is a flowchart illustrating the steps of another embodiment of a method for allocating resources;

FIG. 7 is a flowchart illustrating the steps of yet another embodiment of a method for allocating resources in accordance with the present invention;

fig. 8 is a block diagram of a resource allocation apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.

The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.

To better understand the embodiments of the present invention, the following description refers to the internet of view:

some of the technologies applied in the video networking are as follows:

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.

Server Technology (Server Technology)

The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.

Storage Technology (Storage Technology)

The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.

Network Security Technology (Network Security Technology)

The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.

Service Innovation Technology (Service Innovation Technology)

The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.

Networking of the video network is as follows:

the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.

As shown in fig. 1, the video network is divided into an access network and a metropolitan network.

The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.

The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.

Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.

The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.

Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.

The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.

Video networking device classification

1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).

The specific hardware structure of each access network device is as follows:

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;

wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the incoming data packet of the CPU module 304 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.

The rate control module 308 is configured by the CPU module 304, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.

The other modules in the ethernet protocol gateway function similarly to the access switch.

A terminal:

the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.

1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.

2. Video networking packet definition

2.1 Access network packet definition

The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.

As shown in the following table, the data packet of the access network mainly includes the following parts:

DA

SA

Reserved

Payload

CRC

wherein:

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;

the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);

the reserved byte consists of 2 bytes;

the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;

the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.

2.2 metropolitan area network packet definition

The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.

In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.

As shown in the following table, the data packet of the metro network mainly includes the following parts:

DA

SA

Reserved

label (R)

Payload

CRC

Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.

Based on the characteristics of the video network, one of the core concepts of the embodiments of the present invention is provided, which follows a protocol of the video network, when an external domain terminal needs to poll a polling terminal in a main domain, it is determined whether the number of the external domain terminals to be added to the current polling is greater than the split screen number of the polling terminal, if so, bridge resources equal to the split screen number of the polling terminal are applied, and the external domain terminals are grouped, in each polling of the current polling, if the external domain terminal includes the external domain terminal, the bridge resources are allocated to map the external domain terminal to the polling terminal in the main domain, after the polling of the current external domain terminal is finished, the bridge resources are recovered for the next external domain terminal to use, and after all the external domain terminals finish the current polling, the bridge resources are released. In the embodiment of the invention, only the bridging resources with the same split screen number as the polling terminals are applied for the whole polling process, and the corresponding bridging resources do not need to be applied for each external domain terminal for fixed mapping, so that the problem of shortage of bridging resources is solved, and the current polling efficiency of the video conference is improved.

Referring to fig. 5, a flowchart illustrating steps of an embodiment of a resource allocation method according to the present invention is shown, where the method is applied to a video network server, and specifically may include the following steps:

step 501, determining whether the number of external domain terminals to be added into the current polling is larger than the split screen number of the polling terminal, and if so, applying for bridging resources with the same number as the split screen number.

The video network server is a server in the video network responsible for related services of the video network conference, and comprises conference reservation, conference starting, conference joining, conference leaving, speaker changing, conference polling and the like. Therefore, it is also responsible for allocating bridging resources when an external domain terminal needs to join the current polling of the main domain, and mapping through the bridging resources to help the external domain terminal participate in the main domain polling.

When a video conference is performed in a video network, a polling service is sometimes required, that is, videos of different channels are switched on a screen of a polling terminal according to a set time interval, and at this time, the polling terminal needs to acquire audio and video streams of terminals participating in polling. However, in the video networking, there are different independent video networking environments called domains, and only terminals in the same domain can perform direct transmission of audio and video data streams, and when a terminal sends audio and video streams to a terminal in another domain, a bridging resource is required to map the audio and video streams. Therefore, the problem of reasonably distributing and using the bridging resources is significant to the development of inter-domain services of the video networking.

In the embodiment of the invention, when polling service is needed, usually in a video conference situation, audio and video streams of terminals participating in polling are required to be sent to the polling terminal for the polling terminal to play polling.

In the embodiment of the invention, when an external domain terminal joins in the current polling, the video network server needs to confirm the relationship between the number of the external domain terminals joining in the current polling and the number of the split screens of the polling terminals, the video network server can acquire the information of the number of the external domain terminals in a conference where the polling terminals are located in the process of receiving a request for starting the polling service from the polling terminals, and can also confirm the number of the external domain terminals and the number of the split screens of the polling terminals corresponding to the request of the external domain terminals when receiving the request for joining in the current polling of a certain polling terminal from the external domain terminals, and the judgment can be carried out according to the mode of.

In the embodiment of the invention, when the video network server confirms that the number of the external domain terminals to be added into the current polling is greater than the split screen number, the video network server applies for the bridging resources with the same split screen number as the polling terminals, usually, the bridging resources are stored in a bridging resource server in the video network, the video network server sends information such as the address of the video network server, the number of the bridging resources and the like to the bridging resource server, and the bridging resource server sends information of the bridging resources with corresponding number to the address of the video network server according to the information of the number of the bridging resources.

In the embodiment of the invention, when the spare quantity of the bridging resources in the bridging resource server is insufficient, the information of insufficient bridging resources is returned to the video network server, the request of the video network server is added into the waiting queue, and the information can be timely returned to the video network server after the spare bridging resources are obtained.

For example, the video networking server determines that the polling terminal has four split screens according to the polling service request of the polling terminal, 8 terminals in the video conference where the polling terminal is located are external domain terminals, and because the number of the external domain terminals is greater than the split screen number of the polling terminal, the video networking server applies for 4 bridging resources for use.

And 502, grouping the external domain terminals according to the split screen number to obtain at least one external domain terminal group.

In the embodiment of the invention, when polling service is carried out, the outside domain terminal also comprises the main domain terminal, and according to the actual situation of the service, only the main domain terminal or only the outside domain terminal is polled each time, or both the main domain terminal and the outside domain terminal are polled each time, so that the outside domain terminals can be grouped according to the split screen number of the polling terminal before polling, namely the number of the outside domain terminals in each group is not more than the split screen number of the polling terminal, but the number of the outside domain terminals in each group of the outside domain terminals can be unequal, so that a vacancy is reserved for the main domain terminal to poll and carry out the polling together.

For example, the number of the foreign domain terminals in the current polling is 8, the number of the split screens of the polling terminals is 4, and the number of the home domain terminals is 8. In the current polling, there are only main domain terminals or only external domain terminals per polling, and therefore, the external domain terminals are divided into two external domain terminal groups, and 4 external domain terminals in each external domain terminal group are polled. Alternatively, in the current polling, the first and second external domain terminals, and the third and fourth external domain terminals respectively need to be polled together with different main domain terminals, so the external domain terminals may be divided into three groups, wherein two external domain terminals exist in two external domain terminal groups, and four external domain terminals exist in one external domain terminal group.

Step 503, allocating the bridge resource of the application to each of the at least one external domain terminal group in turn, so that each external domain terminal group joins the current poll through the bridge resource in turn.

In the embodiment of the present invention, because the polling process of the current polling usually needs to perform polling play for multiple times, when a terminal to be polled in the current polling has an external domain terminal group, the applied bridging resources are allocated to each external domain terminal in the external domain terminal group one by one, and because the external domain terminals in the external domain terminal group are not greater than the split screen number of the polling terminals, and the number of the bridging resources in the current polling is equal to the split screen number of the polling terminals, the external domain terminal group in each polling can have enough bridging resources to perform mapping.

If the number of the external domain terminals in the current polling is 8, the number of the sub-screens of the polling terminals is 4, the number of the main domain terminals is 8, four polling is needed to complete the polling of all the terminals, the main domain terminals are all the main domain terminals during the first polling, therefore, no bridging resource needs to be allocated, one external domain terminal group is added with the polling during the second polling, wherein the external domain terminal group comprises two external domain terminals, two bridging resources are allocated to poll the two external domain terminals respectively, two bridging resources are recovered after the second polling is finished, the other external domain terminal group is added with the polling during the third polling, wherein the external domain terminal group comprises four external domain terminals, four bridging resources are allocated to poll the four external domain terminals respectively, four bridging resources are recovered after the third polling is finished, and the last external domain terminal group is added with the polling during the fourth polling, wherein the external domain terminals comprise two external domain terminals, and allocating two bridging resources to poll the two external domain terminals respectively, and recovering the two bridging resources after the fourth polling is finished.

If the polling terminals have 4 sub-screens for current polling, namely a sub-screen A, a sub-screen B, a sub-screen C and a sub-screen D, 8 external domain terminals A, B, C, D, E, F, G, H participate in the current polling, the video networking server can apply for 4 bridge resource bridges 1, 2, 3 and 4 according to the number of the sub-screens 4, when the external domain terminal A, B, C, D participates in the current polling, the audio and video streams of the four external domain terminals are transferred to the bridges 1, 2, 3 and 4, then the audio and video streams of the external domain terminals are transferred to the sub-screen A, B, C and D through the bridges 1, 2, 3 and 4 to complete the current polling, when the next polling external domain terminal E, F, G, H enters the current polling, the audio and video streams of the four external domain terminals are transferred to the bridges 1, 2, 3 and 4, and the audio and video streams of the external domain terminals are transferred to the sub-screen A, B, C and D through the bridges 1, 2, 3 and 4 to the sub-screen A, And B, C, D, finishing next polling, wherein at the moment, 8 external domain terminals finish polling completely, and the polling of the current polling middle external domain terminal is finished.

Optionally, the bridging resource comprises: the system comprises an external domain virtual terminal and a main domain virtual terminal, wherein the number of the external domain virtual terminals, the number of the main domain virtual terminals and the number of the external domain terminals in the current external domain terminal group are the same, and the external domain virtual terminals, the main domain virtual terminals and the external domain terminals in the current external domain terminal group have one-to-one correspondence relationship.

At this time, optionally, as shown in fig. 6, the step 503 includes:

step 5031, sending first parameter information of a corresponding external domain virtual terminal to each external domain terminal in the current external domain terminal group, so that the external domain terminal sends the audio and video stream corresponding to the current polling to the corresponding external domain virtual terminal according to the first parameter information, so that the external domain virtual terminal sends the audio and video stream to the corresponding main domain virtual terminal.

In the embodiment of the invention, the bridging resource can be a virtual terminal pair capable of performing point-to-point data direct transmission between domains, wherein the virtual terminal pair performs data transmission with an external domain terminal and is called an external domain virtual terminal, the virtual terminal pair performs data transmission with a main domain terminal and is called a main domain virtual terminal, when the mapping of the external domain terminal is performed through the bridging resource, the external domain terminal sends data to the external domain virtual terminal, the external domain virtual terminal sends the data to the main domain virtual terminal, the main domain virtual terminal finally sends the data to the main domain terminal to complete the mapping, and the main domain terminal can be a polling terminal of the main domain.

In the embodiment of the invention, the external domain terminal sends data required for polling, such as audio and video streams, to the external domain virtual terminal, first parameter information of the external domain virtual terminal, namely a sequence number, an MAC (Media Access Control Address, MAC (Media Access Control Address) and the like of the external domain virtual terminal, and the video network server sends the first parameter information of the external domain virtual terminals of different bridging resources to the external domain terminal in the external domain terminal one to one in the process of distributing bridging resources, so that the external domain terminal can send the audio and video streams required for polling to the corresponding external domain virtual terminal according to the respectively distributed first parameter information.

In the embodiment of the invention, the external domain virtual terminal can send the audio and video to the main domain virtual terminal after obtaining respective audio and video stream, and respective parameter information should be mutually stored between the external domain virtual terminal and the main domain virtual terminal in the bridging resource so as to send data in time.

If two external domain terminals in the current external domain terminal group need to participate in polling, the video network server sends first parameter information of one external domain virtual terminal to each of the two external domain terminals, and according to the respective first parameter information, the two external domain terminals respectively send audio and video streams needed by respective participation in polling to the external domain virtual terminals corresponding to the respective first parameter information.

Step 5032, sending second parameter information of the polling terminal to the corresponding main domain virtual terminal, so that the main domain virtual terminal sends the audio/video stream corresponding to the current polling to the polling terminal according to the second parameter information, and the polling terminal plays the audio/video stream so as to add each external domain terminal in the current external domain terminal group to the current polling.

In the embodiment of the invention, after the main domain virtual terminal obtains respective audio and video streams, the respective audio and video streams need to be sent to the polling terminal to participate in polling, at the moment, the video network server sends the second parameter information of the polling terminal to the main domain virtual terminal, and the main domain virtual terminal can send related audio and video streams according to the second parameter information.

For example, the two external domain virtual terminals send the audio and video stream to the polling terminal according to the second parameter information sent by the video networking server, so that the external domain terminal participates in the main domain polling.

Optionally, in step 5031, after the step of sending, by the external domain terminal, the audio and video stream corresponding to the current polling to the corresponding external domain virtual terminal according to the first parameter information, and before the step of sending, by the external domain virtual terminal, the audio and video stream to the corresponding main domain virtual terminal, the method includes:

and the external domain virtual terminal verifies the validity of the audio and video stream.

In the embodiment of the present invention, in order to protect conference information and prevent the occurrence of false sending, false sending or malicious attack, after receiving an audio/video stream of an external domain terminal, an external domain virtual terminal needs to verify the validity of the audio/video stream, and the method mainly includes: whether the audio and video stream is from an external domain corresponding to the external domain virtual terminal, whether the audio and video stream is from an external domain terminal corresponding to the external domain virtual terminal, whether the audio and video stream is complete, and the like, according to external domain terminal information attached when the external domain terminal sends the audio and video stream, such as a terminal serial number, a terminal address, and the like, and domain information, such as a domain serial number, and the like.

And if the audio and video stream passes the validity verification of the external domain virtual terminal, the audio and video stream is sent to the corresponding main domain virtual terminal through the external domain virtual terminal.

In the embodiment of the invention, the external domain virtual terminal judges the legality of the audio and video stream by judging whether the domain serial number is matched with the terminal serial number and other information, or judges whether the terminal is in a conference of the main domain polling terminal, if so, the audio and video stream is sent to the polling terminal, otherwise, the illegal information of the external domain virtual terminal data is returned, and the terminal serial number, the domain serial number and other information are sent to the video network server.

In the embodiment of the present invention, the verification process may also be completed by the video networking server, after receiving the audio/video stream, the external domain virtual terminal may extract the relevant information of the external domain terminal from the audio/video stream and send the information to the video networking server, the video networking server performs relevant verification, when the video networking server verifies that the source of the audio/video stream is legal, the information that the verification is successful is returned to the external domain virtual terminal, so that the external domain virtual terminal can send the audio/video stream to the polling terminal according to the second parameter information, and when the video networking server verifies that the source of the audio/video stream is illegal, the information that the verification is failed is returned to the external domain virtual terminal, so that the external domain virtual terminal discards the audio/video stream and.

Step 504, releasing the bridging resource when all the external domain terminal groups complete the current polling.

In the embodiment of the invention, when the video network server records that all the external domain terminal groups in the current polling are polled completely, the bridging resources are released to the bridging resource server, wherein the polling completion does not mean that the whole current polling comprises the completion of the polling of the external domain terminal and the main domain terminal, all the bridging resources can be released after the external domain terminal is completely polled, and at the moment, the current polling can be performed by the subsequent main domain terminal to wait for polling so as to improve the utilization rate of the bridging resources. Certainly, the bridging resources may also be reserved until all terminals complete polling, so as to avoid the occurrence of an emergency situation that the audio/video stream of the external domain terminal needs to be temporarily called, and a person skilled in the art may select the bridging resources according to specific requirements.

For example, after the fourth polling is finished, all four bridging resources are released.

On the other hand, as shown in fig. 7, the method may further include:

and 505, if the number of the external domain terminals to be added into the current polling is less than or equal to the split screen number of the polling terminals, applying for bridging resources with the same number as the external domain terminals.

In the embodiment of the invention, when the number of the external domain terminals to be added into the current polling is less than the split screen number of the polling terminals, the normal operation of the whole polling process can be ensured only by applying the bridging resources with the same number as the external domain terminals, and the video networking server only needs to perform the conventional application, distribution, mapping, recovery and release processes.

For example, the number of the external domain terminals is 2, the number of the sub-screens of the polling terminals is 4, and it is determined that the number of the external domain terminals is smaller than the number of the sub-screens of the polling terminals, at this time, the video networking server applies for two bridging resources from the bridging resource server.

Step 506, allocating the bridge resource of the application to the external domain terminal, so that the external domain terminal joins the current poll through the bridge resource.

In the embodiment of the present invention, the video networking server may allocate the bridging resources to the external domain terminals one-to-one at the beginning, or may select one from the bridging resources for mapping when polling the external domain terminals is in turn.

For example, 2 external domain terminals and 2 bridging resources are allocated in a one-to-one correspondence manner, when polling is performed to a first external domain terminal, the bridging resources corresponding to the first external domain terminal are called for mapping, and when polling is performed to a second external domain terminal, the bridging resources corresponding to the second external domain terminal are called for mapping. Or when one external domain terminal exists in the polling, one bridging resource is allocated for mapping, the bridging resource is recovered after the polling is finished, when two external domain terminals participate in the polling, two bridging resources are allocated for mapping, and the bridging resource is recovered after the polling is finished.

Step 507, releasing the bridging resource to the bridging server under the condition that all external domain terminals finish the current polling.

In the embodiment of the present invention, one bridging resource may be released to the bridging resource server after one external domain terminal is mapped, or all bridging resources may be released after all external domain terminals are mapped.

In the embodiment of the present invention, the process of mapping the external domain terminal to the main domain polling by bridging resource allocation is similar to the foregoing process, and no additional details are described herein.

For example, in 2 external domain terminals, the first polling-completed rear view networking server recovers the bridging resource and releases the resource to the bridging resource server.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.

Referring to fig. 8, a block diagram of a resource allocation apparatus according to an embodiment of the present invention is shown, where the apparatus is applied to a video network server, and specifically may include the following modules:

the determining module 601 is configured to determine whether the number of the external domain terminals to be added to the current polling is greater than the number of split screens of the polling terminal, and if so, apply for bridging resources equal to the number of split screens.

A grouping module 602, configured to group the external domain terminals according to the split screen number to obtain at least one external domain terminal group.

A mapping module 603, configured to allocate the bridge resource of the application to each of the at least one ectodomain terminal group in turn, so that each ectodomain terminal group joins the current poll through the bridge resource in turn.

Optionally, the mapping module 603 includes:

and the current group resource allocation submodule is used for allocating the bridge resources applied to the current external domain terminal group in the at least one external domain terminal group so as to enable each external domain terminal in the current external domain terminal group to be mapped to the polling terminal through one bridge resource and join in current polling.

And the resource reallocation sub-module is used for recovering the bridging resources and allocating the bridging resources to the next external domain terminal group under the condition that all external domain terminals in the current external domain terminal group finish current polling.

Optionally, the bridging resource comprises: the system comprises an external domain virtual terminal and a main domain virtual terminal, wherein the number of the external domain virtual terminals, the number of the main domain virtual terminals and the number of the external domain terminals in the current external domain terminal group are the same, and the external domain virtual terminals, the main domain virtual terminals and the external domain terminals in the current external domain terminal group have one-to-one correspondence;

at this time, optionally, the current group resource allocation submodule includes:

a first parameter information sending unit, configured to send first parameter information of a corresponding external domain virtual terminal to each external domain terminal in the current external domain terminal group, so that the external domain terminal sends the audio/video stream corresponding to the current poll to the corresponding external domain virtual terminal according to the first parameter information, so that the external domain virtual terminal sends the audio/video stream to the corresponding main domain virtual terminal;

and the second parameter information sending unit is used for sending second parameter information of the polling terminal to the corresponding main domain virtual terminal so that the main domain virtual terminal sends the audio and video stream corresponding to the current polling to the polling terminal according to the second parameter information, and the polling terminal plays the audio and video stream so that each external domain terminal in the current external domain terminal group is added into the current polling.

Optionally, the first parameter information sending unit includes:

the legal verification subunit is used for verifying the legality of the audio and video stream by the external domain virtual terminal;

and the audio and video stream sending subunit is used for sending the audio and video stream to the corresponding main domain virtual terminal through the external domain virtual terminal if the audio and video stream passes the validity verification of the external domain virtual terminal.

A releasing module 604, configured to release the bridging resource when all the external domain terminal groups complete the current polling.

The determining module 601 is further configured to apply for bridging resources equal to the number of the external domain terminals if the number of the external domain terminals to be added to the current polling is less than or equal to the number of the split screens of the polling terminals;

the mapping module 603 is further configured to allocate the bridge resource of the application to the external domain terminal, so that the external domain terminal joins the current poll through the bridge resource;

the releasing module 604 is further configured to release the bridging resource to the bridging server when all the external domain terminals complete the current polling.

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The foregoing detailed description is directed to a resource allocation method and a resource allocation apparatus provided by the present invention, and the principles and embodiments of the present invention are explained in detail herein by using specific examples, and the descriptions of the foregoing examples are only used to help understanding the method and the core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A resource allocation method is applied to a video network server, and comprises the following steps:

confirming whether the number of external domain terminals to be added into the current polling is larger than the split screen number of the polling terminal, and if so, applying for bridging resources with the same number as the split screen number;

grouping the external domain terminals according to the split screen number to obtain at least one external domain terminal group;

allocating the bridge resource of the application to each of the at least one external domain terminal group in turn so that each external domain terminal group joins the current poll through the bridge resource in turn;

releasing the bridging resources under the condition that all external domain terminal groups finish the current polling;

the bridging resource includes: the system comprises an external domain virtual terminal and a main domain virtual terminal, wherein the number of the external domain virtual terminals, the number of the main domain virtual terminals and the number of the external domain terminals in the current external domain terminal group are the same, and the external domain virtual terminals, the main domain virtual terminals and the external domain terminals in the current external domain terminal group have one-to-one correspondence;

the step of allocating the bridge resource of the application to a current one of the at least one ectodomain terminal group, so that each ectodomain terminal in the current ectodomain terminal group is mapped to the polling terminal through one bridge resource, and adding current polling includes:

sending first parameter information of a corresponding external domain virtual terminal to each external domain terminal in the current external domain terminal group, so that the external domain terminal sends audio and video streams corresponding to the current polling to the corresponding external domain virtual terminal according to the first parameter information, and the external domain virtual terminal sends the audio and video streams to the corresponding main domain virtual terminal;

and sending second parameter information of the polling terminal to the corresponding main domain virtual terminal, so that the main domain virtual terminal sends the audio and video stream corresponding to the current polling to the polling terminal according to the second parameter information, and the polling terminal plays the audio and video stream so as to enable each external domain terminal in the current external domain terminal group to join in the current polling.

2. The method of claim 1, further comprising:

if the number of the external domain terminals to be added into the current polling is less than or equal to the split screen number of the polling terminals, applying for bridging resources with the same number as the external domain terminals;

allocating the bridge resource of the application to the external domain terminal so that the external domain terminal joins the current poll through the bridge resource;

and releasing the bridging resources to a bridging server under the condition that all external domain terminals finish the current polling.

3. The method of claim 1, wherein said step of allocating said bridge resource of said application to each of said at least one group of ectodomain terminals in turn, such that said each group of ectodomain terminals joins said current poll via said bridge resource in turn, comprises:

allocating the bridge resource to a current external domain terminal group in the at least one external domain terminal group, so that each external domain terminal in the current external domain terminal group is mapped to the polling terminal through one bridge resource and is added into current polling;

and under the condition that all the external domain terminals in the current external domain terminal group complete current polling, recovering the bridging resources and allocating the bridging resources to the next external domain terminal group.

4. The method of claim 1, wherein after the step of sending the audio/video stream corresponding to the current poll to the corresponding external domain virtual terminal by the external domain terminal according to the first parameter information by sending the first parameter information of the corresponding external domain virtual terminal to each external domain terminal in the current external domain terminal group, and before the step of sending the audio/video stream to the corresponding main domain virtual terminal by the external domain virtual terminal, the method comprises:

the external domain virtual terminal verifies the validity of the audio and video stream;

5. A resource allocation device, which is applied to a video network server, the device comprising:

the judging module is used for confirming whether the number of the external domain terminals to be added into the current polling is larger than the split screen number of the polling terminal, and if so, applying for bridging resources with the same number as the split screen number;

the grouping module is used for grouping the external domain terminals according to the split screen number to obtain at least one external domain terminal group;

a mapping module, configured to allocate the bridge resource in application to each of the at least one external domain terminal group in turn, so that each external domain terminal group joins in the current poll through the bridge resource in turn;

a releasing module, configured to release the bridging resource when all the external domain terminal groups complete the current polling;

the current group resource allocation submodule includes:

6. The apparatus of claim 5,

the judging module is further configured to apply for bridging resources equal to the number of the external domain terminals if the number of the external domain terminals to be added to the current polling is less than or equal to the number of the split screens of the polling terminals;

the mapping module is further configured to allocate the bridge resource of the application to the external domain terminal, so that the external domain terminal joins the current poll through the bridge resource;

the releasing module is further configured to release the bridging resource to a bridging server when all the external domain terminals complete the current polling.

7. The apparatus of claim 5, wherein the mapping module comprises:

a current group resource allocation submodule, configured to allocate the bridge resource to a current external domain terminal group in the at least one external domain terminal group, so that each external domain terminal in the current external domain terminal group is mapped to the polling terminal through one bridge resource and joins in current polling;

8. The apparatus of claim 5, wherein the first parameter information sending unit comprises: