CN111131760A - Video recording method and device - Google Patents
Video recording method and device Download PDFInfo
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- CN111131760A CN111131760A CN201911414797.9A CN201911414797A CN111131760A CN 111131760 A CN111131760 A CN 111131760A CN 201911414797 A CN201911414797 A CN 201911414797A CN 111131760 A CN111131760 A CN 111131760A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
According to the video recording method and device provided by the embodiment of the invention, the conference management server schedules a plurality of audio and video data required to be recorded by a user to the synthesis server to synthesize a target video stream and a target audio stream, and then the conference management server schedules the target video stream and the target audio stream to the recording server to record, wherein the synthesis server can synthesize the plurality of audio and video data according to display effect configuration, so that the recording data meeting the user requirements can be obtained, and the recording server can record the audio and video data provided by a plurality of clients only by setting a recording process, so that the data processing pressure of the recording server is reduced.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a video recording method and device.
Background
The video networking is an important milestone for network development, is a higher-level form of the Internet, is a real-time network, can realize the real-time transmission of full-network high-definition videos which cannot be realized by the existing Internet, and pushes a plurality of Internet applications to high-definition video. The user can not only utilize the video networking to carry out the live conference of many people, can also record the video of meeting.
In the existing video networking technology, the recording of the live conference video is realized through a recording server, if a user needs to record the watched live conference, a conference management server schedules audio and video streams of a plurality of terminals participating in the live conference to the recording server, and the plurality of audio and video streams are recorded through the recording server respectively, so that a plurality of recorded data are obtained.
The recording mode needs the recording server to record the plurality of audio and video streams through the plurality of recording processes, the obtained display effect of the plurality of recorded videos is not processed, the display effect is different from the actual display effect of a user when the user watches the plurality of audio and video streams, the user experience is influenced, in addition, because the audio and video streams of the live conference are too much, each live conference needs to be processed through the plurality of recording processes, a large amount of processing resources of the recording server are occupied, and the data processing pressure of the recording server is increased.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a video recording method and apparatus that overcome the above problems or at least partially solve the above problems.
In order to solve the above problem, a first aspect of the embodiments of the present invention discloses a video recording method, where the method is applied to a conference management server, and the conference management server is in communication connection with a client, a composition server, and a recording server, respectively, where the method includes:
receiving a recording request sent by the client, wherein the recording request at least comprises: a display effect configuration and a plurality of client identifiers;
sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the synthesis server, so that the synthesis server synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream;
acquiring the target audio stream and the target video stream from the synthesis server, and forwarding the target audio stream and the target video stream to the recording server, so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data;
and acquiring the target recording data from the recording server, and returning the target recording data to the client.
Optionally, the display effect configuration includes: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
Optionally, the step of sending the audio stream, the video stream, and the display effect configuration corresponding to each client identifier to the composition server, so that the composition server composes the plurality of audio streams into a target audio stream according to the display effect configuration, and composes the plurality of video streams into a target video stream includes:
acquiring a first video networking number of a synthetic virtual terminal from the synthetic server, and establishing communication connection with the synthetic virtual terminal according to the first video networking number, wherein the synthetic virtual terminal is arranged in the synthetic server;
and sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to a synthesis virtual terminal in the synthesis server, so that the synthesis virtual terminal synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into the target video stream according to the display effect configuration.
Optionally, the forwarding the target audio stream and the target video stream to the recording server, so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data, includes:
acquiring a second video networking number of a recording virtual terminal from the recording server, and establishing communication connection with the recording virtual terminal according to the second video networking number, wherein the recording virtual terminal is arranged in the recording server;
and forwarding the target audio stream and the target video stream to a recording virtual terminal in the recording server, so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
Optionally, the conference management server follows an internet protocol, the synthesis server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the synthesis server and the recording server through a protocol conversion server, and the protocol conversion server is used for performing interconversion between the internet protocol and the video networking protocol on passing data packets.
The second aspect of the embodiment of the present invention discloses a video recording device, which is applied to a conference management server, wherein the conference management server is respectively in communication connection with a client, a composition server and a recording server, and the device comprises:
a receiving module, configured to receive a recording request sent by the client, where the recording request at least includes: a display effect configuration and a plurality of client identifiers;
the synthesis module is used for sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the synthesis server, so that the synthesis server synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream;
the recording module is used for acquiring the target audio stream and the target video stream from the synthesis server and forwarding the target audio stream and the target video stream to the recording server so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data;
and the return module is used for acquiring the target recording data from the recording server and returning the target recording data to the client.
Optionally, the display effect configuration includes: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
Optionally, the synthesis module includes:
the first connection sub-module is used for acquiring a first video network number of a synthetic virtual terminal from the synthetic server and establishing communication connection with the synthetic virtual terminal according to the first video network number, and the synthetic virtual terminal is arranged in the synthetic server;
and the synthesis submodule is used for sending the audio stream and the video stream corresponding to each client identifier and the display effect configuration to a synthesis virtual terminal in the synthesis server, so that the synthesis virtual terminal synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into the target video stream according to the display effect configuration.
Optionally, the recording module includes:
the second connection submodule is used for acquiring a second video network number of a recording virtual terminal from the recording server and establishing communication connection with the recording virtual terminal according to the second video network number, and the recording virtual terminal is arranged in the recording server;
and the recording submodule is used for forwarding the target audio stream and the target video stream to a recording virtual terminal in the recording server so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
Optionally, the conference management server follows an internet protocol, the synthesis server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the synthesis server and the recording server through a protocol conversion server, and the protocol conversion server is used for performing interconversion between the internet protocol and the video networking protocol on passing data packets.
The embodiment of the invention has the following advantages:
according to the video recording method and device provided by the embodiment of the invention, the conference management server schedules a plurality of audio and video data required to be recorded by a user to the synthesis server to synthesize a target video stream and a target audio stream, and then the conference management server schedules the target video stream and the target audio stream to the recording server to record, wherein the synthesis server can synthesize the plurality of audio and video data according to display effect configuration, so that the recording data meeting the user requirements can be obtained, and the recording server can record the audio and video data provided by a plurality of clients only by setting a recording process, so that the data processing pressure of the recording server is reduced.
Drawings
FIG. 1 is a flow chart of the steps of a video recording method of the present invention;
FIG. 2 is a flow chart of the steps of another video recording method of the present invention;
FIG. 3 is a schematic diagram of a data transmission process for video recording according to the present invention;
fig. 4 is a block diagram of a video recording apparatus according to the present invention;
FIG. 5 is a networking schematic of a video network of the present invention;
FIG. 6 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 7 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 8 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway 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.
Referring to fig. 1, a video recording method of the present invention is shown, where the method is applied to a conference management server, and the conference management server is respectively in communication connection with a client, a composition server, and a recording server, and the method includes:
it should be noted that the conference management server is used to connect with a plurality of clients and send live video data generated by a plurality of live clients to each of the audience clients to implement a multi-user live conference, and the following clients all refer to the audience clients.
In the embodiment of the present invention, when a user watches a multi-user live conference through a client interface in a terminal device of the user, if a current conference content needs to be recorded, a client identifier corresponding to a client of an audio/video stream that the user needs to record and a display effect configuration of the video that the user needs to record can be selected through the client, and of course, the display effect configuration can also be determined by the client according to a display effect currently being played, for example: when a user watches the live video conference of other four users, the client can display the live video conference to the user through the display effect of the four split screens.
And 102, sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the synthesis server, so that the synthesis server synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream.
In the embodiment of the invention, in the video networking live video conference, audio and video data are divided into two data streams for transmission. And the conference management server inquires the audio stream and the video stream of the client corresponding to the client identifier according to the client identifier, schedules the audio stream and the video stream to a synthesis server, and configures and sends the display effect which needs to be synthesized by the audio stream and the video stream to the synthesis server. Then the composition server will compose the video stream according to the composition effect configuration to obtain a target video stream conforming to the composition effect configuration. At the same time, the synthesis server synthesizes the audio streams into a target audio stream according to the synthesized effect configuration, for example: the multi-channel stereo surround reverberation processing can be used for carrying out the audio effect of simultaneous playing of the left and right double-channel reverberation processing on a plurality of audio streams, and the multi-channel stereo surround reverberation processing can be adopted according to the configuration of the synthesis effect of the video streams, so that the experience of the center of a conference at the position of a user is created.
In the embodiment of the invention, the synthesis server returns a target audio stream and a target video stream to the conference management server, then the conference management server directly schedules the target audio stream and the target video stream to the recording server, and the recording server is responsible for synthesizing the target audio stream and the target video stream into a target recording data containing target audio data and target video data. It should be noted that, because the target audio stream and the target video stream are live data of the client corresponding to the client representation, the recording process is continuously performed along with the live conference, and accordingly, the user may send a recording ending instruction to the conference management server through the client, so that the recording server stops recording the target audio stream and the target video stream, and the generated video data is used as target recording data.
And 104, acquiring the target recording data from the recording server, and returning the target recording data to the client.
In the embodiment of the invention, after receiving the recording ending instruction sent by the client through the conference management server, the recording server returns the generated target recording data to the conference management platform, so that the conference management platform returns the obtained target recording data to the client. In this way, the user can obtain the recorded data which meets the required display effect.
According to the video recording method provided by the embodiment of the invention, the conference management server schedules a plurality of audio and video data required to be recorded by a user to the synthesis server to synthesize a target video stream and a target audio stream, and then the conference management server schedules the target video stream and the target audio stream to the recording server to record, wherein the synthesis server can synthesize the plurality of audio and video data according to display effect configuration, so that the recording data meeting the requirements of the user is obtained, and the recording server can record the audio and video data provided by a plurality of clients only by setting a recording process, so that the data processing pressure of the recording server is reduced.
Referring to fig. 2, another video recording method of the present invention is shown, and the method is applied to a conference management server, where the conference management server is respectively in communication connection with a client, a composition server, and a recording server, and the method includes:
This step can refer to the detailed description of step 101, which is not repeated herein.
Step 202, obtaining a first video network number of a synthetic virtual terminal from the synthetic server, and establishing a communication connection with the synthetic virtual terminal according to the first video network number, wherein the synthetic virtual terminal is arranged in the synthetic server.
In the embodiment of the invention, a plurality of synthetic virtual terminals are preset in the synthetic server, and each virtual terminal is assigned a unique video networking number and stores the current operating state of the corresponding composite virtual terminal, when the conference management server receives a recording request from a client, the conference management server requests the composition server to allocate a composition virtual terminal for processing the recording request, the synthetic virtual terminal allocates the synthetic virtual terminal in an idle state to the task according to the current operation state of the plurality of synthetic virtual terminals, and returning the first video network number of the idle synthetic virtual terminal to the conference management server, and the conference management server establishes communication connection with the synthetic virtual terminal according to the first video network number and returns a connection success notice to the conference management server.
In the embodiment of the present invention, after confirming that the composite virtual terminal is accessed, the conference management platform schedules audio streams and video streams from the clients identified by the plurality of clients to the composite virtual terminal, and after receiving the audio streams and the video streams, the composite virtual terminal synthesizes the plurality of target audio streams into one target audio stream according to the effect configuration, synthesizes the plurality of video streams into one target video stream, and finally obtains one target audio stream and one target video stream.
According to the embodiment of the invention, the synthesis virtual terminal in the synthesis server synthesizes the audio and video stream, so that the synthesis server can simultaneously execute and process a plurality of synthesis processes, and the data processing efficiency of the synthesis server is improved.
Optionally, the display effect configuration includes: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
In the embodiment of the invention, because a user needs to watch audio and video streams provided by a plurality of other clients simultaneously when watching a live conference through a client, the audio and video streams need to be played in a split screen mode on a display interface of the client, and the user needs recording data in a split screen mode with the same watching effect as the audio and video streams in the recording process instead of a plurality of recording data which can only be played independently, the audio and video streams can be synthesized through a synthesis virtual terminal in the synthesis server according to a split screen arrangement mode required by the user, so that the display effect of the recorded data meets the actual requirement of the user, and the specific split screen arrangement mode can be configured and input by the user or determined by the client according to the number of client identifications required to be recorded. By synthesizing the audio and video data according to the split-screen arrangement mode, the recorded video data can better meet the user requirements, and the user experience is improved.
And 204, acquiring a second video network number of the recording virtual terminal from the recording server, and establishing communication connection with the recording virtual terminal according to the second video network number, wherein the recording virtual terminal is arranged in the recording server.
In the embodiment of the present invention, the recording server is internally provided with a plurality of recording virtual terminals for synthesizing the audio stream and the video stream into target recording data including audio data and video data. The recording server inquires the recording virtual terminal in an idle state in a plurality of built-in recording virtual terminals and distributes the recording virtual terminal to the conference management server, and sends a second video networking number of the recording virtual terminal in the idle state to the conference management server, so that the recording virtual terminal is accessed to the conference management server.
Step 205, forwarding the target audio stream and the target video stream to a recording virtual terminal in the recording server, so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
In the embodiment of the invention, after the synthesis server synthesizes a plurality of audio and video streams into a target audio stream and a video stream, the target audio stream and the video stream are returned to the conference management server, the conference management server speaks a target audio stream and a target video stream and schedules the target audio stream and the target video stream to the recording server, and the recording server starts to speak the target audio stream and the target video stream to synthesize target recording data.
According to the embodiment of the invention, the audio stream and the video stream are synthesized into the recording data containing the audio data and the video data through the recording virtual terminal in the recording server, so that the parallel processing of the recording server on the recording process is realized, and the data processing capacity of the recording server is improved.
This step can refer to the detailed description of step 204, which is not repeated herein.
Optionally, the conference management server follows an internet protocol, the synthesis server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the synthesis server and the recording server through a protocol conversion server, and the protocol conversion server is used for performing interconversion between the internet protocol and the video networking protocol on passing data packets.
In the embodiment of the present invention, referring to a schematic diagram of a video recording data transmission process shown in fig. 3, after a client a1 sends a recording request to a conference management platform, the conference management platform requests to allocate virtual terminals through a protocol conversion server A3 and a recording server A5 and a composition server A4 in a video networking environment, a recording server A5 returns a first video networking number of an allocated recording virtual terminal a51 to a conference management server a2 through a protocol conversion server A3, and a composition server A4 returns a second video networking number of an allocated composition virtual terminal a41 to a conference management server a2 through a protocol conversion server A3, after the conference management server a2 confirms that a composition virtual terminal a41 and a recording virtual terminal a51 are accessed, a plurality of audio and video streams to be recorded are first scheduled to a composition virtual terminal a41 for composition, the synthetic virtual terminal A41 synthesizes a plurality of audio and video data into a target video stream and a target audio stream, and then returns the target video stream and the target audio stream to the conference management server A2, the conference management server A2 speaks the target audio stream and the target video stream and forwards the target audio stream and the target video stream to the recording virtual terminal A51 for recording, so that target recorded data are obtained, the recording virtual terminal A51 returns the obtained target recorded data to the conference management server A2 through the protocol conversion server A3, and finally the conference management server A2 speaks the target recorded data and returns the target recorded data to the client A1.
According to the other video recording method provided by the embodiment of the invention, a plurality of audio and video data which are required to be recorded by a user are scheduled to a synthesis server through a conference management server to be synthesized into a target video stream and a target audio stream, and then are scheduled to a recording server through the conference management server to be recorded, wherein the synthesis server can synthesize the plurality of audio and video data according to display effect configuration, so that the recorded data meeting the requirements of the user are obtained, and the recording server can record the audio and video data provided by a plurality of clients only by setting a recording process, so that the data processing pressure of the recording server is reduced. And the virtual terminal realizes the synthesis and recording processes, so that the recording server and the synthesis server can process multiple paths of processes in parallel, and the processing capacity of video recording is improved.
EXAMPLE III
Referring to fig. 3, a block diagram of an embodiment of a video recording apparatus 30 of the present invention is shown, the apparatus is applied to a conference management server, the conference management server is respectively connected with a client, a composition server, and a recording server in a communication manner, and the apparatus includes:
a receiving module 301, configured to receive a recording request sent by the client, where the recording request at least includes: a display effect configuration and a plurality of client identifications.
A synthesizing module 302, configured to send the audio stream, the video stream, and the display effect configuration corresponding to each client identifier to the synthesizing server, so that the synthesizing server synthesizes the multiple audio streams into a target audio stream according to the display effect configuration, and synthesizes the multiple video streams into a target video stream.
The recording module 303 is configured to obtain the target audio stream and the target video stream from the synthesis server, and forward the target audio stream and the target video stream to the recording server, so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data.
A returning module 304, configured to obtain the target recording data from the recording server, and return the target recording data to the client.
Optionally, the display effect configuration includes: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
Optionally, the synthesis module 302 includes:
the first connection submodule 3021 is configured to obtain a first video network number of a synthetic virtual terminal from the synthetic server, and establish a communication connection with the synthetic virtual terminal according to the first video network number, where the synthetic virtual terminal is disposed in the synthetic server.
A synthesizing submodule 3022, configured to send the audio stream, the video stream, and the display effect configuration corresponding to each client identifier to a synthesizing virtual terminal in the synthesizing server, so that the synthesizing virtual terminal synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream according to the display effect configuration.
Optionally, the recording module 303 includes:
and a second connection submodule 3031, configured to acquire a second video network number of the recording virtual terminal from the recording server, and establish a communication connection with the recording virtual terminal according to the second video network number, where the recording virtual terminal is disposed in the recording server.
And the recording submodule 3032 is configured to forward the target audio stream and the target video stream to a recording virtual terminal in the recording server, so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
Optionally, the conference management server follows an internet protocol, the synthesis server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the synthesis server and the recording server through a protocol conversion server, and the protocol conversion server is used for performing interconversion between the internet protocol and the video networking protocol on passing data packets.
According to the video recording device provided by the embodiment of the invention, the conference management server schedules a plurality of audio and video data required to be recorded by a user to the synthesis server to synthesize a target video stream and a target audio stream, and then the conference management server schedules the target video stream and the target audio stream to the recording server to record, wherein the synthesis server can synthesize the plurality of audio and video data according to display effect configuration, so that the recording data meeting the user requirements can be obtained, and the recording server can record the audio and video data provided by a plurality of clients only by setting a recording process, so that the data processing pressure of the recording server is reduced. And the virtual terminal realizes the synthesis and recording processes, so that the recording server and the synthesis server can process multiple paths of processes in parallel, and the processing capacity of video recording is improved.
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.
To better illustrate the solution of the invention, the following detailed description of the video network is given:
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. 5, 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. 6, the system mainly includes a network interface module 501, a switching engine module 502, a CPU module 503, and a disk array module 504;
the network interface module 501, the CPU module 503 and the disk array module 504 all enter the switching engine module 502; the switching engine module 502 performs an operation of looking up the address table 505 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a corresponding queue of the packet buffer 506 based on the packet's steering information; if the queue of the packet buffer 506 is nearly full, it is discarded; the switching engine module 502 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 504 mainly implements control over the hard disk, including initialization, read-write, and other operations of the hard disk; the CPU module 503 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 505 (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 504.
The access switch:
as shown in fig. 7, the network interface module (downlink network interface module 601, uplink network interface module 602), switching engine module 603, and CPU module 604 are mainly included;
wherein, the packet (uplink data) coming from the downlink network interface module 601 enters the packet detection module 605; the packet detection module 605 detects whether the Destination Address (DA), the Source Address (SA), the type of the packet, and the length of the packet meet the requirements, if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 603, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 602 enters the switching engine module 603; the incoming data packet from the CPU module 604 enters the switching engine module 603; the switching engine module 603 performs an operation of looking up the address table 606 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 603 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 607 in association with the stream-id; if the queue of the packet buffer 607 is close to full, it is discarded; if the packet entering the switching engine module 603 is not from the downlink network interface to the uplink network interface, the packet is stored in the queue of the corresponding packet buffer 607 according to the packet guiding information; if the queue of the packet buffer 607 is close to full, it is discarded.
The switching engine module 603 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 608 is configured by the CPU module 604 and generates tokens for packet buffer queues going to the upstream network interface from all downstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 604 is mainly responsible for protocol processing with the node server, configuration of the address table 606, and configuration of the code rate control module 608.
Ethernet protocol conversion gateway：
As shown in fig. 8, the apparatus mainly includes a network interface module (a downlink network interface module 701, an uplink network interface module 702), a switch engine module 703, a CPU module 704, a packet detection module 705, an address table 706, a packet buffer 707, a rate control module 708, a MAC adding module 709, and a MAC deleting module 710.
Wherein, the data packet coming from the downlink network interface module 701 enters the packet detection module 705; the packet detection module 705 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 deleting module 710 subtracts MAC DA, MAC SA, length or frame type (2byte), and enters the corresponding receiving buffer, otherwise, discards;
the downlink network interface module 701 detects the sending buffer of the port, and if a packet exists, the downlink network interface module learns 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 MACSA 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 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.
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 transaction management method and the transaction management device provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping to understand the method and the core idea of the 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 (10)
1. A video recording method is characterized in that the method is applied to a conference management server which is respectively in communication connection with a client, a synthesis server and a recording server, and the method comprises the following steps:
receiving a recording request sent by the client, wherein the recording request at least comprises: a display effect configuration and a plurality of client identifiers;
sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the synthesis server, so that the synthesis server synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream;
acquiring the target audio stream and the target video stream from the synthesis server, and forwarding the target audio stream and the target video stream to the recording server, so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data;
and acquiring the target recording data from the recording server, and returning the target recording data to the client.
2. The method of claim 1, wherein the display effect configuration comprises: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
3. The method according to claim 1, wherein the step of sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the composition server, so that the composition server composes the plurality of audio streams into a target audio stream according to the display effect configuration, and composes the plurality of video streams into a target video stream comprises:
acquiring a first video networking number of a synthetic virtual terminal from the synthetic server, and establishing communication connection with the synthetic virtual terminal according to the first video networking number, wherein the synthetic virtual terminal is arranged in the synthetic server;
and sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to a synthesis virtual terminal in the synthesis server, so that the synthesis virtual terminal synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into the target video stream according to the display effect configuration.
4. The method according to claim 1, wherein the forwarding the target audio stream and the target video stream to the recording server so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data comprises:
acquiring a second video networking number of a recording virtual terminal from the recording server, and establishing communication connection with the recording virtual terminal according to the second video networking number, wherein the recording virtual terminal is arranged in the recording server;
and forwarding the target audio stream and the target video stream to a recording virtual terminal in the recording server, so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
5. The method according to claim 1, wherein the conference management server follows an internet protocol, the composition server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the composition server and the recording server respectively through a protocol conversion server, and the protocol conversion server is used for performing mutual conversion between the internet protocol and the video networking protocol on the passed data packets.
6. The video recording device is applied to a conference management server which is respectively in communication connection with a client, a synthesis server and a recording server, and comprises:
a receiving module, configured to receive a recording request sent by the client, where the recording request at least includes: a display effect configuration and a plurality of client identifiers;
the synthesis module is used for sending the audio stream, the video stream and the display effect configuration corresponding to each client identifier to the synthesis server, so that the synthesis server synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into a target video stream;
the recording module is used for acquiring the target audio stream and the target video stream from the synthesis server and forwarding the target audio stream and the target video stream to the recording server so that the recording server synthesizes the target audio stream and the target video stream to obtain target recording data;
and the return module is used for acquiring the target recording data from the recording server and returning the target recording data to the client.
7. The apparatus of claim 6, wherein the display effect configuration comprises: and in a split-screen arrangement mode, the target audio stream and the target video stream are respectively obtained by the synthesis server synthesizing the plurality of audio streams and video streams according to the split-screen arrangement mode.
8. The apparatus of claim 6, wherein the synthesis module comprises:
the first connection sub-module is used for acquiring a first video network number of a synthetic virtual terminal from the synthetic server and establishing communication connection with the synthetic virtual terminal according to the first video network number, and the synthetic virtual terminal is arranged in the synthetic server;
and the synthesis submodule is used for sending the audio stream and the video stream corresponding to each client identifier and the display effect configuration to a synthesis virtual terminal in the synthesis server, so that the synthesis virtual terminal synthesizes the audio streams into a target audio stream according to the display effect configuration, and synthesizes the video streams into the target video stream according to the display effect configuration.
9. The apparatus of claim 6, wherein the recording module comprises:
the second connection submodule is used for acquiring a second video network number of a recording virtual terminal from the recording server and establishing communication connection with the recording virtual terminal according to the second video network number, and the recording virtual terminal is arranged in the recording server;
and the recording submodule is used for forwarding the target audio stream and the target video stream to a recording virtual terminal in the recording server so that the recording virtual terminal records the target audio stream and the target video stream to obtain target recording data.
10. The device of claim 1, wherein the conference management server follows an internet protocol, the composition server and the recording server follow a video networking protocol, the conference management platform is in communication connection with the composition server and the recording server through a protocol conversion server, and the protocol conversion server is used for performing interconversion between the internet protocol and the video networking protocol on the passed data packets.
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