CN111193897A - Video conference picture stream rendering video method and device, computer equipment and medium - Google Patents
Video conference picture stream rendering video method and device, computer equipment and medium Download PDFInfo
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- CN111193897A CN111193897A CN202010014517.1A CN202010014517A CN111193897A CN 111193897 A CN111193897 A CN 111193897A CN 202010014517 A CN202010014517 A CN 202010014517A CN 111193897 A CN111193897 A CN 111193897A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
Abstract
The application relates to a video conference picture stream rendering video method and device, computer equipment and media, wherein the method comprises the following steps: when a video conference picture stream is used for rendering a video, a clock chip with the precision higher than a preset value is used as a baud rate generator, and data with the same content in a specified quantity is sent to the tested equipment; receiving and storing data sent by a serial port of the tested device; after the receiving is finished, counting the number of correctly received data, and simultaneously comparing and judging whether the received data is consistent with the sent data; removing the count of content inconsistencies; the current baud rate error rate is the total correct byte number received by the test divided by the specified number; and reading the error receiving count to obtain specific error information. The method is used for testing the error rate of the serial port, adopts a hidden mode to control the output and the input of the serial port, and has the advantages of low cost, simple realization, high testing accuracy and high safety.
Description
Technical Field
The application relates to the technical field of video conferences, in particular to a method and a device for rendering videos based on an HTML5Canvas picture stream in a video conference, computer equipment and a readable storage medium.
Background
In the existing video conference system, a CS (client/server) side already has a mature video player, but for a BS (browser and server) side, although there are schemes such as WebRTC (web instant messaging), browser plug-in, etc. when interfacing with video interaction of a video conference, several listed schemes cannot be achieved in the prior art, and full support, full compatibility, and security and stability cannot be both achieved.
For WebRTC, which is based on P2P in terms of platform availability, the problem of availability and power connection of P2P has been worried by many developers; from the compatibility of browsers, not all browsers support WebRTC (web instant messaging), nor all browsers support standard methods; from the viewpoint of platform interoperability, the desktop version and the mobile version of the same browser support WebRTC differently, companies in many fields have self-developed communication protocols, and how to achieve intercommunication between a slave end and a client end and the WebRTC protocol needs to make many matching strategies.
Browser plug-ins, such as Edge, Chrome, Safari, FireFox and the like, use NPAPI plug-ins, and IEs use ActiveX plug-ins, so far, only IE browsers still support ActiveX plug-ins, but Edge, Chrome, Safari, FireFox and the like do not support NPAPI plug-ins. In recent years, due to the security problem of the browser plug-ins, each browser limits the use of the third-party plug-ins, which brings a challenge limit to video playing in a plug-in mode, for example, loading ActiveX by IE sets a relatively high security level of the ActiveX plug-ins, and if the internal setting is manually turned down, other security problems may be introduced.
That is, in the prior art, when video interaction is performed on a video conference on a web side, various browsers cannot be compatible, and full support and full compatibility cannot be achieved; in addition, the safety and the stability of the prior art cannot be simultaneously considered.
Therefore, the prior art is in need of improvement.
Disclosure of Invention
The invention provides a method and a device for rendering a video based on an HTML5Canvas picture stream in a video conference, computer equipment and a readable storage medium, aiming at the technical problems in the prior art.
The technical scheme of the invention is as follows:
a method of video-conferencing picture stream rendering video, wherein the method comprises:
starting a video conference, and establishing a web socket between a browser and a client background;
the method comprises the steps that a browser monitors a picture stream sent by a client;
the client receives the conference video stream, converts the video stream into pictures and compresses the pictures;
encoding the compressed picture stream into a base64 picture stream;
the browser receives the base64 picture stream, and renders the picture stream to the browser interface display through Canvas.
The video conference picture stream video rendering method comprises the following steps of starting a video conference, and establishing a web socket between a browser and a client background, wherein the steps comprise:
the client side enables the video conference through the control information provided by the video conference server, and all paths of terminals are accessed into the conference;
the browser and the client background establish a web socket.
The video conference picture stream video rendering method is characterized in that the step of monitoring a picture stream sent by a client by a browser comprises the following steps:
the browser monitors background media messages and picture streams sent by the client.
The video conference picture stream video rendering method comprises the following steps that the client receives an incoming video stream, converts the video stream into pictures and compresses the pictures, and further comprises the following steps:
and the client receives the video stream from the video conference server, converts each frame of the video stream into a jpeg picture and compresses the jpeg picture at the same time.
The method for rendering video by using video conference picture stream, wherein the step of encoding the compressed picture stream into base64 picture stream further comprises:
the compressed picture stream is encoded into a picture stream in base64 format.
The video rendering method for the video conference picture stream includes the following steps that the browser receives the base64 picture stream, and renders the picture stream to the browser interface through Canvas for display:
sending the picture stream in base64 format to the front end through websocket;
the browser receives the picture stream in the base64 format, and renders Canvas to be displayed on the browser interface.
The video rendering method for the video conference picture stream includes the following steps that the browser receives the base64 picture stream, and renders the picture stream to the browser interface through Canvas for display:
the picture stream is rendered based on the Html5 Canvas.
A video conference picture stream rendering video apparatus, wherein the apparatus comprises:
the connection establishing module is used for starting a video conference, and the browser and the client background establish a web socket;
the monitoring module is used for controlling the browser to monitor the picture stream sent by the client;
the conversion and compression module is used for controlling the client to receive the conference video stream, converting the video stream into pictures and compressing the pictures;
an encoding module, configured to encode the compressed picture stream into a base64 picture stream;
and the rendering module is used for controlling the browser to receive the base64 picture stream and render the picture stream to the browser interface for display through the Canvas.
A computer device comprising a memory storing a computer program and a processor, wherein the processor when executing the computer program implements any of the steps of the video conference picture stream rendering video method.
A computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the steps of any of the video conference picture stream rendering video methods.
Compared with the prior art, the embodiment of the invention has the following advantages:
the method comprises the steps of providing a video playing mode for rendering a picture stream based on an HTML5Canvas in a video conference, establishing a web socket between a browser and a client background after starting the video conference, monitoring the picture stream sent by a client by the browser, carrying out picture conversion on each received frame after the client receives the video stream from a video conference server, carrying out proper compression on the picture, converting the picture into Base64, sending the picture to the front end through the websocket, receiving a Base64 picture stream by the browser, and rendering the browser interface through the Canvas. The invention provides a web video interaction method which can compatibly support various large browsers and can give consideration to safety and stability when a video conference carries out video interaction on a web side, and the method is simple to implement and high in reliability; providing convenience for the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a video conference picture stream video rendering method according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of an implementation system of a video conference picture stream video rendering method according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating an embodiment of a specific application of a video conference picture stream video rendering method according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a video apparatus for rendering a video stream of a video conference according to an embodiment of the present invention;
fig. 5 is an internal structural diagram of a computer device in an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The inventor finds that, in the prior art, when video interaction is performed on a video conference on a web side, various browsers cannot be compatible, and full support and full compatibility cannot be achieved; and the prior art can not give consideration to the technical problems of safety and stability at the same time.
In order to solve the above problems, in the embodiment of the present invention, in a video playing mode for rendering a picture stream based on an Html5Canvas, after a video conference is started, a web socket is established between a browser and a client background, the browser monitors the picture stream sent from a client, after the client receives the video stream from a video conference server, the client performs picture conversion on each received frame, at the same time, the picture is appropriately compressed and converted into Base64, and after the video stream is sent to a front end through a websocket, the browser receives a Base64 picture stream, and renders a browser interface through the Canvas.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 shows a method for rendering a video by a video conference picture stream according to an embodiment of the present invention, where the method includes the following steps:
step S1, starting a video conference, and establishing a web socket between the browser and the client background;
in specific implementation, as shown in fig. 2, when a video conference needs to be started, a browser establishes a web socket connection with a client background, and the client background is in communication connection with a server.
The browser receives an operation instruction of a user and establishes a web socket with a client background, the client starts a video conference through a control information instruction (namely a signaling) provided by a video conference server, each path of terminal accesses the conference, and waits for media information transmitted from the server.
Step S2, the browser monitors the picture stream sent by the client;
in the embodiment of the invention, the browser monitors the picture stream information sent by the client.
In a specific embodiment, the browser listens to background media messages and to a picture stream sent from the client.
Step S3, the client receives the conference video stream, and converts the video stream into pictures and compresses the pictures;
in the embodiment of the invention, when the client receives the video stream for the conference (namely, receives the video stream of the video conference), the video stream is converted into the picture and compressed.
For example, the client receives a video stream from the video conference server, converts each frame of the video stream into a jpeg picture, and compresses the jpeg picture simultaneously, so that the rear-end display is smoother after the compression.
Step S4, encoding the compressed picture stream into a base64 picture stream;
in the embodiment of the present invention, the compressed picture stream is encoded into a picture stream in base64 format.
The invention adopts an encoding mode that Base64 is used for transmitting 8-Bit byte codes, and Base64 is a method for representing binary data based on 64 printable characters. The Base64 encoding is a binary-to-character process, can be used for transmitting long identification information in an HTTP environment, and provides a basis for ensuring the stability of a video conference.
And S5, the browser receives the base64 picture stream, and renders the picture stream to the browser interface for display through a Canvas.
In the embodiment of the invention, the browser receives the base64 picture stream, and renders the picture stream to the browser interface for display through the Canvas. Where Canvas Component is the abstract of the layout and rendering of the UI, all of the UIs must be below this element (child object), i.e. Canvas is the Component rendering the UI. :
in specific implementation, a picture stream in base64 format is sent to the front end through websocket; the browser receives the picture stream in the base64 format, and renders Canvas to be displayed on the browser interface. Where WebSocket is a protocol for full duplex communication over a single TCP connection.
The video conference picture stream video rendering method provided by the embodiment of the invention is based on an Html5Canvas rendering picture stream.
As shown in fig. 3, the method according to the embodiment of the present invention includes:
a client background starts;
a client background conference; joining the video conference;
the client background receives the conference entering video stream;
the background of the client converts the video stream into JPEG pictures and compresses the JPEG pictures;
converting the compressed picture into a picture stream in base64 format; sent to the front end through websocket.
The method comprises the following steps of a browser end;
the browser receives the picture stream in base64 format;
rendering the Canvas to the browser interface for display;
and finishing the process after the display is finished.
The invention provides a method for rendering a video based on an HTML5Canvas in a video conference, which comprises the steps of rendering a video playing mode of a picture stream based on an Html5Canvas, establishing a web socket between a browser and a client background after the video conference is started, monitoring the picture stream sent by the client by the browser, carrying out picture conversion on each received frame after the client receives the video stream from a video conference server, properly compressing the picture and converting the picture into Base64, sending the picture to the front end through the websocket, receiving the Base64 picture stream by the browser, and rendering the interface of the browser through the Canvas. The invention provides a web video interaction method which can compatibly support various large browsers and can give consideration to safety and stability when a video conference carries out video interaction on a web side, and the method is simple to implement and high in reliability; providing convenience for the user.
In one embodiment, the present invention provides a video conference picture stream rendering video apparatus, as shown in fig. 4, the apparatus comprising:
the connection establishing module 41 is used for starting a video conference, and the browser and the client background establish a web socket;
the monitoring module 42 is configured to control the browser to monitor a picture stream sent from the client;
a conversion and compression module 43, configured to control the client to receive the conference video stream, convert the video stream into pictures, and compress the pictures;
an encoding module 44, configured to encode the compressed picture stream into a base64 picture stream;
the rendering module 45 is configured to control the browser to receive the base64 picture stream, and render the picture stream to the browser interface for display through a Canvas; as described above.
In one embodiment, the present invention provides a computer device, which may be a terminal, having an internal structure as shown in fig. 5. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of generating a natural language model. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that fig. 5 is a block diagram of only a portion of the structure associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
The embodiment of the invention provides computer equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the following steps:
starting a video conference, and establishing a web socket between a browser and a client background;
the method comprises the steps that a browser monitors a picture stream sent by a client;
the client receives the conference video stream, converts the video stream into pictures and compresses the pictures;
encoding the compressed picture stream into a base64 picture stream;
the browser receives a base64 picture stream, and renders the picture stream to a browser interface for display through a Canvas; as described above.
In summary, compared with the prior art, the embodiment of the invention has the following advantages:
the method comprises the steps of providing a video playing mode for rendering a picture stream based on an HTML5Canvas in a video conference, establishing a web socket between a browser and a client background after starting the video conference, monitoring the picture stream sent by a client by the browser, carrying out picture conversion on each received frame after the client receives the video stream from a video conference server, carrying out proper compression on the picture, converting the picture into Base64, sending the picture to the front end through the websocket, receiving a Base64 picture stream by the browser, and rendering the browser interface through the Canvas. The invention provides a web video interaction method which can compatibly support various large browsers and can give consideration to safety and stability when a video conference carries out video interaction on a web side, and the method is simple to implement and high in reliability; providing convenience for the user.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for rendering video in a video conference picture stream, the method comprising:
starting a video conference, and establishing a web socket between a browser and a client background;
the method comprises the steps that a browser monitors a picture stream sent by a client;
the client receives the conference video stream, converts the video stream into pictures and compresses the pictures;
encoding the compressed picture stream into a base64 picture stream;
the browser receives the base64 picture stream, and renders the picture stream to the browser interface display through Canvas.
2. The video conference picture stream video rendering method according to claim 1, wherein the step of starting the video conference, and establishing a web socket between the browser and the client background comprises:
the client side enables the video conference through the control information provided by the video conference server, and all paths of terminals are accessed into the conference;
the browser and the client background establish a web socket.
3. The method for rendering video through video conference picture stream according to claim 1, wherein the step of the browser listening to the picture stream sent from the client comprises:
the browser monitors background media messages and picture streams sent by the client.
4. The method for rendering video in a video conference picture stream according to claim 1, wherein the step of receiving the video stream for the incoming conference by the client, and converting the video stream into pictures and compressing the pictures further comprises:
and the client receives the video stream from the video conference server, converts each frame of the video stream into a jpeg picture and compresses the jpeg picture at the same time.
5. The method for rendering video through video conference picture stream according to claim 1, wherein the step of encoding the compressed picture stream into a base64 picture stream further comprises:
the compressed picture stream is encoded into a picture stream in base64 format.
6. The method for rendering video through video conference picture stream according to claim 1, wherein the browser receives the base64 picture stream, and the step of rendering the picture stream to the browser interface display through Canvas further comprises:
sending the picture stream in base64 format to the front end through websocket;
the browser receives the picture stream in the base64 format, and renders Canvas to be displayed on the browser interface.
7. The method for rendering video through video conference picture stream according to claim 1, wherein the browser receives the base64 picture stream, and the step of rendering the picture stream to the browser interface display through Canvas further comprises:
the picture stream is rendered based on the Html5 Canvas.
8. An apparatus for rendering video streams of video conference pictures, the apparatus comprising:
the connection establishing module is used for starting a video conference, and the browser and the client background establish a web socket;
the monitoring module is used for controlling the browser to monitor the picture stream sent by the client;
the conversion and compression module is used for controlling the client to receive the conference video stream, converting the video stream into pictures and compressing the pictures;
an encoding module, configured to encode the compressed picture stream into a base64 picture stream;
and the rendering module is used for controlling the browser to receive the base64 picture stream and render the picture stream to the browser interface for display through the Canvas.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the video conference picture stream rendering video method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for rendering video from a video conference picture stream according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010014517.1A CN111193897A (en) | 2020-01-07 | 2020-01-07 | Video conference picture stream rendering video method and device, computer equipment and medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010014517.1A CN111193897A (en) | 2020-01-07 | 2020-01-07 | Video conference picture stream rendering video method and device, computer equipment and medium |
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| CN109740087A (en) * | 2018-11-23 | 2019-05-10 | 量子云未来（北京）信息科技有限公司 | A kind of picture rendering method, apparatus and system |
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| US20170126776A1 (en) * | 2015-10-30 | 2017-05-04 | Evren BINGOL | Providing audio data for a remote desktop protocol in a standards-based web browser |
| CN106506525A (en) * | 2016-11-29 | 2017-03-15 | 北京旷视科技有限公司 | For playing the method and device of video flowing on a web browser |
| CN108718399A (en) * | 2018-07-09 | 2018-10-30 | 深圳市潮流网络技术有限公司 | A kind of video conference layout method based on browser page |
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