CN109218306B - Audio and video data stream processing method and system - Google Patents

Abstract

The embodiment of the invention provides a method and a system for processing audio and video data streams, wherein the method comprises the following steps: the Ethernet protocol conversion gateway receives a request instruction from a first video network terminal, wherein the request instruction is a request instruction of video network services sent by the first video network terminal to a second video network terminal; the Ethernet protocol conversion gateway sends a video telephone service request to a first video network terminal by using a first virtual terminal, sends a video telephone service request to a second video network terminal by using a second virtual terminal, and carries out at least one operation of switching operation, storage operation, recording operation and screen capturing operation on a first audio and video data stream received by the first virtual terminal and a second audio and video data stream received by the second virtual terminal. The embodiment of the invention realizes the exchange operation of audio and video data streams generated in the two-way communication process, and the third-party operations such as storage operation, recording operation, screen capturing operation and the like.

Description

Audio and video data stream processing method and system

Technical Field

The present invention relates to the field of video networking technologies, and in particular, to a method and a system for processing audio and video data streams.

Background

With the rapid development of network technologies, bidirectional communications such as video conferences and video teaching are widely popularized in the aspects of life, work, learning and the like of users.

In the process of two-way communication, two entity terminals exchange local audio and video data streams through a video telephone service, for example, a service application terminal obtains the local audio and video data streams of the service application terminal by shooting information such as head images and submitted data of service application personnel through a camera. And the service handling terminal transmits real-time service handling state visual information, namely, local audio and video data streams of the service handling terminal to the service application terminal.

At present, the third-party operation of audio and video data streams generated by two entity terminals in the process of bidirectional communication is a technical problem which needs to be solved urgently.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a processing method of an audio-visual data stream and a corresponding processing system of an audio-visual data stream that overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a method for processing audio and video data streams, where the method is applied to a video network, and the video network includes: the method comprises the following steps that an Ethernet protocol conversion gateway, a first video network terminal and a second video network terminal are arranged, the Ethernet protocol conversion gateway is respectively communicated with the first video network terminal and the second video network terminal, and the method comprises the following steps: the Ethernet protocol conversion gateway receives a request instruction from the first video network terminal, wherein the request instruction is a request instruction of video network services sent by the first video network terminal to the second video network terminal; the Ethernet protocol conversion gateway sends a video telephone service request to the first video network terminal by utilizing a first virtual terminal running in a preset application program, and sends a video telephone service request to the second video network terminal by utilizing a second virtual terminal running in the application program; the Ethernet protocol conversion gateway carries out exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal; and the Ethernet protocol conversion gateway performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

Optionally, the exchanging operation of the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal by the ethernet protocol gateway includes: the Ethernet protocol conversion gateway sends a first audio and video data stream received by the first virtual terminal from the first video networking terminal to the second virtual terminal, and the second virtual terminal is used for sending the first audio and video data stream to the second video networking terminal through a video telephone service; and the Ethernet protocol conversion gateway sends a second audio and video data stream received by the second virtual terminal from the second video networking terminal to the first virtual terminal, and the first virtual terminal is used for sending the second audio and video data stream to the first video networking terminal through a video telephone service.

Optionally, before the ethernet coordination gateway sends a video telephony service request to the first video networking terminal by using a first virtual terminal operating in a preset application program, and sends a video telephony service request to the second video networking terminal by using a second virtual terminal operating in the application program, the method further includes: and the Ethernet cooperative gateway retrieves the first virtual terminal and the second virtual terminal in an idle state in the application program.

Optionally, after the ethernet coordination gateway performs an exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, the method further includes: the Ethernet protocol gateway receives a video telephone service stopping instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal and the second virtual terminal, ends the exchange operation between the first audio and video data stream and the second audio and video data stream according to the video telephone service stopping instruction, and performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

Optionally, after the ethernet coordination gateway performs an exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, the method further includes: and the Ethernet protocol gateway responds to the triggering operation of a user for the video telephone service between the first virtual terminal and the first video networking terminal and/or the triggering operation of the video telephone service between the second virtual terminal and the second video networking terminal, ends the exchange operation between the first audio and video data stream and the second audio and video data stream, and performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

The embodiment of the invention also discloses a system for processing audio and video data streams, which is applied to the video networking, wherein the video networking comprises the following steps: ethernet is cooperative changes gateway, first video networking terminal and second video networking terminal, ethernet is cooperative changes gateway respectively with first video networking terminal with the second video networking terminal communicates, ethernet is cooperative changes gateway includes: the receiving module is used for receiving a request instruction from the first video network terminal, wherein the request instruction is a request instruction of a video network service sent by the first video network terminal to the second video network terminal; the request module is used for sending a video telephone service request to the first video network terminal by using a first virtual terminal running in a preset application program and sending a video telephone service request to the second video network terminal by using a second virtual terminal running in the application program; the switching module is used for carrying out switching operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal; and the operation module is used for performing at least one operation of storage operation, recording operation and screen capturing operation on the first audio-video data stream and the second audio-video data stream.

Optionally, the switching module is configured to send a first audio/video data stream received by the first virtual terminal from the first video networking terminal to the second virtual terminal, and send a second audio/video data stream received by the second virtual terminal from the second video networking terminal to the first virtual terminal; the second virtual terminal is used for sending the first audio and video data stream to the second video networking terminal through a video telephone service; and the first virtual terminal is used for sending the second audio and video data stream to the first video networking terminal through a video telephone service.

Optionally, the ethernet protocol conversion gateway further includes: and the retrieval module is used for retrieving the first virtual terminal and the second virtual terminal in an idle state in the application program before the request module sends a video telephone service request to the first video network terminal by using the first virtual terminal running in a preset application program and sends a video telephone service request to the second video network terminal by using the second virtual terminal running in the application program.

Optionally, the ethernet protocol conversion gateway further includes: and the ending module is used for receiving a video telephone service stopping instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal and the second virtual terminal after the switching module carries out switching operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, ending the switching operation between the first audio and video data stream and the second audio and video data stream according to the video telephone service stopping instruction, and carrying out at least one operation of saving, recording and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

Optionally, the ending module is further configured to, after the exchanging module performs an exchanging operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, respond to a trigger operation of a user for a video telephone service between the first virtual terminal and the first video networking terminal, and/or end the exchanging operation between the first audio and video data stream and the second audio and video data stream for a trigger operation of a video telephone service between the second virtual terminal and the second video networking terminal, and perform at least one of a saving operation, a recording operation, and a screen capturing operation on the first audio and video data stream and the second audio and video data stream.

The embodiment of the invention has the following advantages:

the embodiment of the invention is applied to the video network, and the video network can comprise an Ethernet protocol conversion gateway, a first video network terminal and a second video network terminal, wherein the Ethernet protocol conversion gateway is respectively communicated with the first video network terminal and the second video network terminal.

In the embodiment of the invention, the first video network terminal is used as a service application terminal of the video network service, and the second video network terminal is used as a service handling terminal of the video network service. The first video network terminal sends a request instruction of video network service to the second video network terminal, the Ethernet protocol gateway receives the request instruction, and sends a video telephone service request to the first video network terminal by using a first virtual terminal running in a preset application program so as to establish the video telephone service between the first virtual terminal and the first video network terminal. The Ethernet protocol conversion gateway also sends a video telephone service request to the second video network terminal by utilizing a second virtual terminal running in the application program so as to establish the video telephone service between the second virtual terminal and the second video network terminal. In the process of the video telephone service between the first virtual terminal and the first video networking terminal, the first virtual terminal can receive a first audio and video data stream from the first video networking terminal, and in the process of the video telephone service between the second virtual terminal and the second video networking terminal, the second virtual terminal can receive a second audio and video data stream from the second video networking terminal. And the Ethernet protocol conversion gateway carries out switching operation on the first audio-video data stream and the second audio-video data stream, and carries out at least one operation of storage operation, recording operation and screen capturing operation on the first audio-video data stream and the second audio-video data stream.

The embodiment of the invention applies the characteristics of the video network, and the Ethernet protocol conversion gateway firstly utilizes the first virtual terminal and the second virtual terminal in the application program to respectively and correspondingly establish the video telephone service with the first video network terminal and the second video network terminal. The Ethernet protocol conversion gateway exchanges the local audio and video data streams of the first virtual terminal and the second virtual terminal, and simultaneously, at least one of the operations of storage, recording and screen capturing can be carried out on the local audio and video data streams of the first virtual terminal and the second virtual terminal. The embodiment of the invention realizes the exchange operation of audio and video data streams generated in the two-way communication process, and the third-party operations such as storage operation, recording operation, screen capturing operation and the like.

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 steps of an embodiment of a method for processing audio and video data streams according to the present invention;

FIG. 6 is a schematic illustration of a method for the supervised switching of audiovisual data streams based on video networking according to the present invention;

FIG. 7 is an operational diagram of a method for the supervised switching of audiovisual data streams based on video networking according to the present invention;

fig. 8 is a block diagram of an ethernet protocol gateway in an embodiment of a system for processing audio and video data streams according to 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 internet of vision technology employs network Packet Switching to satisfy the demand of Streaming (translated into Streaming, and continuous broadcasting, which is a data transmission technology, converting received data into a stable and continuous stream, and continuously transmitting the stream, so that the sound heard by the user or the image seen by the user is very smooth, and the user can start browsing on the screen before the whole data is transmitted). 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 (circled part), 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 anetwork interface module 201, aswitching engine module 202, aCPU module 203, and adisk array module 204.

Thenetwork interface module 201, theCPU module 203, and thedisk array module 204 all enter theswitching engine module 202; theswitching 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 thecorresponding packet buffer 206 based on the packet's steering information; if the queue of thepacket buffer 206 is nearly full, it is discarded; theswitching 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. Thedisk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; theCPU 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 thedisk array module 204.

The access switch:

as shown in fig. 3, the network interface module (downstreamnetwork interface module 301, upstream network interface module 302), the switchingengine module 303, and theCPU module 304 are mainly included.

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, 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 data packet coming from the CPU module 204 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 switchingengine 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) and obtaining the token generated by the 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.

Therate control module 308 is configured by theCPU 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.

TheCPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the coderate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlinknetwork interface module 401 and an uplink network interface module 402), aswitching engine module 403, aCPU module 404, apacket detection module 405, arate control module 408, an address table 406, apacket buffer 407, aMAC adding module 409, and aMAC deleting module 410.

Wherein, the data packet coming from the downlinknetwork interface module 401 enters thepacket detection module 405; thepacket 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, theMAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlinknetwork 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 video networking destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet coordination 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 3 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

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (e.g. various protocol packets, multicast data packets, unicast data packets, etc.), there are at most 256 possibilities, 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 types of different datagrams, and is 64 bytes if the type of the datagram is a variety of protocol packets, or is 1056 bytes if the type of the datagram is a unicast packet, but 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 a Label of Multi-Protocol Label switching (MPLS), and assuming that there are two connections between a device a and a device B, there are 2 labels for a packet from the device a to the device B, and 2 labels for a 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 video networking, one of the core concepts of the embodiments of the present invention is proposed, and the ethernet protocol gateway uses the first virtual terminal to receive the first audio/video data stream from the first video networking terminal, and uses the second virtual terminal to receive the second audio/video data stream from the second video networking terminal, so as to exchange, store, record, capture and so on the first audio/video data stream and the second audio/video data stream, following the protocol of video networking.

Referring to fig. 5, a flowchart illustrating steps of an embodiment of a method for processing audio and video data streams according to the present invention is shown, where the method may be applied to a video network, and the video network may include an ethernet protocol gateway, a first video network terminal, and a second video network terminal, where the ethernet protocol gateway communicates with the first video network terminal and the second video network terminal, respectively, and the method may specifically include the following steps:

step 501, the ethernet coordination gateway receives a request command from a first video network terminal.

In the embodiment of the invention, the first video network terminal is used as a service application terminal of the video network service, and the second video network terminal is used as a service handling terminal of the video network service. The first video network terminal sends a request instruction of video network service to the second video network terminal, and the Ethernet protocol gateway receives the request instruction through the video network.

Step 502, the ethernet coordination gateway sends a video telephone service request to the first video network terminal by using the first virtual terminal running in the preset application program, and sends a video telephone service request to the second video network terminal by using the second virtual terminal running in the application program.

In the embodiment of the invention, an application program can be preset in the Ethernet protocol gateway, the application program can comprise a plurality of virtual terminals, and each virtual terminal can be used as an initiating terminal of the video telephone service to initiate the video telephone service to the first video network terminal and the second video network terminal.

In a preferred embodiment of the present invention, the ethernet coordination gateway may select two virtual terminals from the plurality of virtual terminals of the application program to respectively initiate the video telephone service to the first video network terminal and the second video network terminal. Specifically, the ethernet coordination gateway may retrieve the state of each virtual terminal in the application program, and if the retrieved state of a certain virtual terminal is an idle state, may initiate a video telephony service to the first video networking terminal or the second video networking terminal through the virtual terminal. In practical applications, the ethernet coordination gateway may retrieve two virtual terminals in an idle state from among the plurality of virtual terminals as the first virtual terminal and the second virtual terminal. The first virtual terminal is used for initiating a forced video telephone service to the first video network terminal, and the second virtual terminal is used for initiating the forced video telephone service to the second video network terminal. After the forced video telephone service is dialed through, the first virtual terminal can transmit the local audio and video data stream to the first video networking terminal, the first video networking terminal can also transmit the local audio and video data stream to the first virtual terminal, similarly, the second virtual terminal can transmit the local audio and video data stream to the second video networking terminal, and the second video networking terminal can also transmit the local audio and video data stream to the second virtual terminal.

Step 503, the ethernet protocol conversion gateway performs an exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal.

In the embodiment of the invention, the Ethernet protocol gateway takes the first audio and video data stream received by the first virtual terminal from the first video networking terminal as the local audio and video data stream of the first virtual terminal, and takes the second audio and video data stream received by the second virtual terminal from the second video networking terminal as the local audio and video data stream of the second virtual terminal. The Ethernet protocol gateway can exchange the local audio and video data stream of the first virtual terminal and the local audio and video data stream of the second virtual terminal in the application program, namely the Ethernet protocol gateway sends the first audio and video data stream as the local audio and video data stream of the first virtual terminal to the second virtual terminal, and sends the second audio and video data stream as the local audio and video data stream of the second virtual terminal to the first virtual terminal. The first virtual terminal and the first video networking terminal execute the video telephone service, and the second virtual terminal and the second video networking terminal execute the video telephone service, so that the first virtual terminal transmits the received second audio and video data to the first video networking terminal through the video telephone service, and the second virtual terminal transmits the received first audio and video data stream to the second video networking terminal through the video telephone service. And finally, transmitting the first audio and video data stream from the first video networking terminal to the second video networking terminal, and transmitting the second audio and video data stream from the second video networking terminal to the first video networking terminal.

And step 504, the Ethernet protocol conversion gateway performs at least one of storage operation, recording operation and screen capturing operation on the first audio-video data stream and the second audio-video data stream.

In the embodiment of the present invention, the ethernet protocol gateway may perform, in addition to the switching operation on the first audio/video data stream and the second audio/video data stream, other third-party operations on the first audio/video data stream and the second audio/video data stream, such as one or more of a saving operation, a recording operation, and a screen capturing operation.

In a preferred embodiment of the present invention, after the ethernet protocol gateway performs the switching operation on the first audio-visual data stream and the second audio-visual data stream, the ethernet protocol gateway may end the switching operation between the first audio-visual data stream and the second audio-visual data stream, and end the third party operation on the first audio-visual data stream and the second audio-visual data stream, and so on. Specifically, on one hand, the ethernet protocol gateway may receive a video telephone service stop instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal, and the second virtual terminal, end an exchange operation between the first audio-video data stream and the second audio-video data stream according to the video telephone service stop instruction, and end at least one of a saving operation, a recording operation, and a screen capturing operation on the first audio-video data stream and the second audio-video data stream. The embodiment of the present invention does not specifically limit the format and content of the videophone service stop instruction, and the transmission protocol and manner followed by transmitting the videophone service stop instruction to the ethernet protocol-to-gateway. On the other hand, the ethernet coordination gateway may end the switching operation between the first audio-video data stream and the second audio-video data stream and at least one of the saving operation, the recording operation and the screen capturing operation of the first audio-video data stream and the second audio-video data stream in response to a user triggering operation on the video telephone service between the first virtual terminal and the first video networking terminal and/or a triggering operation on the video telephone service between the second virtual terminal and the second video networking terminal. The triggering operation may be a click operation of a call button for the videophone service, and the like, and the operation form of the triggering operation is not particularly limited in the embodiment of the present invention.

Based on the above description of the embodiment of the audio and video data stream processing method, a method for monitoring and exchanging audio and video data streams based on video networking is introduced below, as shown in fig. 6, the method involves virtual terminals a and B, entity terminals C and D, and an audio and video data stream exchange server, wherein the virtual terminals a and B run in an application program of the audio and video data stream exchange server, and the entity terminals C and D communicate with the audio and video data stream exchange server through the video networking. As shown in fig. 7, the audio/video data stream switching server receives a request instruction of a video networking service sent from an entity terminal C to an entity terminal D, and the audio/video data stream switching server determines whether two virtual terminals in an idle state exist in a local application program, and if so, initiates a forced video telephone service to the entity terminals C and D by using the virtual terminals a and B, respectively; if not, the process ends. After the virtual terminals A and B are respectively used for initiating a forced video telephone service to the entity terminals C and D, further judging whether the forced video telephone service is switched on or not, if so, exchanging audio and video data streams respectively received by the virtual terminals A and B and taking the audio and video data streams as local audio and video data streams of the video telephone service carried out by the entity terminals C and D, and simultaneously carrying out recording or screen capturing operation on the audio and video data streams respectively received by the virtual terminals A and B until a stop instruction of the video telephone service is received; if not, the process is ended.

The embodiment of the invention is applied to the video network, and the video network can comprise an Ethernet protocol conversion gateway, a first video network terminal and a second video network terminal, wherein the Ethernet protocol conversion gateway is respectively communicated with the first video network terminal and the second video network terminal.

In the embodiment of the invention, the first video network terminal is used as a service application terminal of the video network service, and the second video network terminal is used as a service handling terminal of the video network service. The first video network terminal sends a request instruction of video network service to the second video network terminal, the Ethernet protocol gateway receives the request instruction, and sends a video telephone service request to the first video network terminal by using a first virtual terminal running in a preset application program so as to establish the video telephone service between the first virtual terminal and the first video network terminal. The Ethernet protocol conversion gateway also sends a video telephone service request to the second video network terminal by utilizing a second virtual terminal running in the application program so as to establish the video telephone service between the second virtual terminal and the second video network terminal. In the process of the video telephone service between the first virtual terminal and the first video networking terminal, the first virtual terminal can receive a first audio and video data stream from the first video networking terminal, and in the process of the video telephone service between the second virtual terminal and the second video networking terminal, the second virtual terminal can receive a second audio and video data stream from the second video networking terminal. And the Ethernet protocol conversion gateway carries out switching operation on the first audio-video data stream and the second audio-video data stream, and carries out at least one operation of storage operation, recording operation and screen capturing operation on the first audio-video data stream and the second audio-video data stream.

The embodiment of the invention applies the characteristics of the video network, and the Ethernet protocol conversion gateway firstly utilizes the first virtual terminal and the second virtual terminal in the application program to respectively and correspondingly establish the video telephone service with the first video network terminal and the second video network terminal. The Ethernet protocol conversion gateway exchanges the local audio and video data streams of the first virtual terminal and the second virtual terminal, and simultaneously, at least one of the operations of storage, recording and screen capturing can be carried out on the local audio and video data streams of the first virtual terminal and the second virtual terminal. The embodiment of the invention realizes the exchange operation of audio and video data streams generated in the two-way communication process, and the third-party operations such as storage operation, recording operation, screen capturing operation and the like.

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 an ethernet protocol conversion gateway in an embodiment of a system for processing audio and video data streams according to the present invention is shown, where the system may be applied to a video network, and the video network may include the ethernet protocol conversion gateway, a first video network terminal, and a second video network terminal, where the ethernet protocol conversion gateway communicates with the first video network terminal and the second video network terminal, respectively, and the ethernet protocol conversion gateway in the system may specifically include the following modules:

the receivingmodule 801 is configured to receive a request instruction from a first video network terminal, where the request instruction is a request instruction of a video network service sent by the first video network terminal to a second video network terminal.

Therequest module 802 is configured to send a video telephony service request to a first video networking terminal by using a first virtual terminal operating in a preset application program, and send a video telephony service request to a second video networking terminal by using a second virtual terminal operating in the application program.

Theswitching module 803 is configured to perform a switching operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal.

Theoperation module 804 is configured to perform at least one of a saving operation, a recording operation, and a screen capturing operation on the first audio-video data stream and the second audio-video data stream.

In a preferred embodiment of the present invention, theswitching module 803 is configured to send a first audio/video data stream received by the first virtual terminal from the first video networking terminal to the second virtual terminal, and send a second audio/video data stream received by the second virtual terminal from the second video networking terminal to the first virtual terminal; the second virtual terminal is used for sending the first audio and video data stream to the second video networking terminal through the video telephone service; the first virtual terminal is used for sending the second audio and video data stream to the first video networking terminal through the video telephone service.

In a preferred embodiment of the present invention, the ethernet protocol gateway further comprises: a retrievingmodule 805, configured to retrieve, in the application program, the first virtual terminal and the second virtual terminal that are in an idle state before the requestingmodule 802 sends the video telephone service request to the first video network terminal by using the first virtual terminal running in the preset application program and sends the video telephone service request to the second video network terminal by using the second virtual terminal running in the application program.

In a preferred embodiment of the present invention, the ethernet protocol gateway further comprises: an endingmodule 806, configured to receive a video telephone service stop instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal, and the second virtual terminal after theswitching module 803 performs a switching operation on the first audio/video data stream received by the first virtual terminal and the second audio/video data stream received by the second virtual terminal, end the switching operation between the first audio/video data stream and the second audio/video data stream according to the video telephone service stop instruction, and perform at least one of a saving operation, a recording operation, and a screen capturing operation on the first audio/video data stream and the second audio/video data stream.

In a preferred embodiment of the present invention, the endingmodule 806 is further configured to, after theswitching module 803 performs a switching operation on the first audio-video data stream received by the first virtual terminal and the second audio-video data stream received by the second virtual terminal, end the switching operation between the first audio-video data stream and the second audio-video data stream in response to a user triggering operation on a video telephone service between the first virtual terminal and the first video networking terminal and/or a triggering operation on a video telephone service between the second virtual terminal and the second video networking terminal, and perform at least one of a saving operation, a recording operation, and a screen capturing operation on the first audio-video data stream and the second audio-video data stream.

For the system 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 describes in detail a method for processing audio and video data streams and a system for processing audio and video data streams provided by the present invention, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the description of the foregoing examples is only used to help understand 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 (8)

1. A method for processing audio-video data streams is applied to a video network, and the video network comprises the following steps: the method comprises the following steps that an Ethernet protocol conversion gateway, a first video network terminal and a second video network terminal are arranged, the Ethernet protocol conversion gateway is respectively communicated with the first video network terminal and the second video network terminal, and the method comprises the following steps:

the Ethernet protocol conversion gateway receives a request instruction from the first video network terminal, wherein the request instruction is a request instruction of video network services sent by the first video network terminal to the second video network terminal;

the Ethernet protocol conversion gateway sends a video telephone service request to the first video network terminal by utilizing a first virtual terminal running in a preset application program, and sends a video telephone service request to the second video network terminal by utilizing a second virtual terminal running in the application program;

the Ethernet protocol conversion gateway carries out exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal;

the Ethernet protocol conversion gateway performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream;

wherein, the ethernet protocol conversion gateway performs an exchange operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, and the exchange operation includes:

the Ethernet protocol conversion gateway sends a first audio and video data stream received by the first virtual terminal from the first video networking terminal to the second virtual terminal, and the second virtual terminal is used for sending the first audio and video data stream to the second video networking terminal through a video telephone service;

and the number of the first and second electrodes,

and the Ethernet protocol conversion gateway sends a second audio and video data stream received by the second virtual terminal from the second video networking terminal to the first virtual terminal, and the first virtual terminal is used for sending the second audio and video data stream to the first video networking terminal through a video telephone service.

2. The method for processing audio-visual data streams according to claim 1, wherein before the ethernet coordination gateway sends a video telephony service request to the first video networking terminal by using a first virtual terminal running in a preset application program, and sends a video telephony service request to the second video networking terminal by using a second virtual terminal running in the application program, the method further comprises:

and the Ethernet cooperative gateway retrieves the first virtual terminal and the second virtual terminal in an idle state in the application program.

3. Method for processing audiovisual data streams according to any of claims 1 to 2, characterized in that after the ethernet protocol gateway performs a switching operation on a first audiovisual data stream received by the first virtual terminal and a second audiovisual data stream received by the second virtual terminal, the method further comprises:

the Ethernet protocol gateway receives a video telephone service stopping instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal and the second virtual terminal, ends the exchange operation between the first audio and video data stream and the second audio and video data stream according to the video telephone service stopping instruction, and performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

4. The audio-visual data stream processing method according to claim 3, wherein after the Ethernet protocol gateway performs a switching operation on the first audio-visual data stream received by the first virtual terminal and the second audio-visual data stream received by the second virtual terminal, the method further comprises:

and the Ethernet protocol gateway responds to the triggering operation of a user for the video telephone service between the first virtual terminal and the first video networking terminal and/or the triggering operation of the video telephone service between the second virtual terminal and the second video networking terminal, ends the exchange operation between the first audio and video data stream and the second audio and video data stream, and performs at least one operation of storage operation, recording operation and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

5. A system for processing audio-visual data streams, said system being applied in a video network, said video network comprising: ethernet is cooperative changes gateway, first video networking terminal and second video networking terminal, ethernet is cooperative changes gateway respectively with first video networking terminal with the second video networking terminal communicates, ethernet is cooperative changes gateway includes:

the receiving module is used for receiving a request instruction from the first video network terminal, wherein the request instruction is a request instruction of a video network service sent by the first video network terminal to the second video network terminal;

the request module is used for sending a video telephone service request to the first video network terminal by using a first virtual terminal running in a preset application program and sending a video telephone service request to the second video network terminal by using a second virtual terminal running in the application program;

the switching module is used for carrying out switching operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal;

the operation module is used for performing at least one operation of storage operation, recording operation and screen capturing operation on the first audio-video data stream and the second audio-video data stream;

the switching module is configured to send a first audio and video data stream received by the first virtual terminal from the first video networking terminal to the second virtual terminal, and send a second audio and video data stream received by the second virtual terminal from the second video networking terminal to the first virtual terminal; the second virtual terminal is used for sending the first audio and video data stream to the second video networking terminal through a video telephone service; and the first virtual terminal is used for sending the second audio and video data stream to the first video networking terminal through a video telephone service.

6. Audio-visual data stream processing system according to claim 5, characterised in that said Ethernet protocol gateway further comprises:

and the retrieval module is used for retrieving the first virtual terminal and the second virtual terminal in an idle state in the application program before the request module sends a video telephone service request to the first video network terminal by using the first virtual terminal running in a preset application program and sends a video telephone service request to the second video network terminal by using the second virtual terminal running in the application program.

7. Audio-visual data stream processing system according to one of the claims 5 to 6, characterised in that said Ethernet protocol gateway further comprises:

and the ending module is used for receiving a video telephone service stopping instruction from any one of the first video networking terminal, the second video networking terminal, the first virtual terminal and the second virtual terminal after the switching module carries out switching operation on the first audio and video data stream received by the first virtual terminal and the second audio and video data stream received by the second virtual terminal, ending the switching operation between the first audio and video data stream and the second audio and video data stream according to the video telephone service stopping instruction, and carrying out at least one operation of saving, recording and screen capturing operation on the first audio and video data stream and the second audio and video data stream.

8. Audio-visual data stream processing system according to claim 7, characterised in that said end module is further adapted to process, at said switching module, the first audio-visual data stream received by said first virtual terminal, after the second audio and video data stream received by the second virtual terminal is exchanged, responding to the triggering operation of the user for the video telephone service between the first virtual terminal and the first video network terminal, and/or, the switching operation between the first audio-video data stream and the second audio-video data stream is ended aiming at the triggering operation of the video telephone service between the second virtual terminal and the second video networking terminal, and, and at least one of a storage operation, a recording operation and a screen capture operation of the first audio and video data stream and the second audio and video data stream.

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