CN112437263A - Video plug flow method and system - Google Patents
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- CN112437263A CN112437263A CN202011265001.0A CN202011265001A CN112437263A CN 112437263 A CN112437263 A CN 112437263A CN 202011265001 A CN202011265001 A CN 202011265001A CN 112437263 A CN112437263 A CN 112437263A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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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
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- 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
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention relates to the technical field of video transmission, and aims to provide a video stream pushing method and a video stream pushing system. The invention discloses a video plug flow method, which comprises the following steps: acquiring video data in real time; transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames; transmitting the current video frame to an encoding buffer area; extracting a video frame from the encoding buffer area, and then sending the current video frame to a server; outputting the video frame; and outputting data early warning prompt information according to the video frame in the server. The invention also discloses a video plug flow system, which is used for realizing the video plug flow method, and the video plug flow system comprises a monitoring terminal, a plug flow gateway and a server; the stream pushing gateway comprises an encoding module, a buffering module and an extracting module. The invention is convenient for the user to check the monitoring video in real time and obtain the early warning prompt, and is beneficial for the user to manage the monitoring area.
Description
Technical Field
The present invention relates to the field of video transmission technologies, and in particular, to a video stream pushing method and system.
Background
The plug flow is a process of transmitting the content packaged in the acquisition stage to a server, namely a process of transmitting the video signal of the scene to a network. The video plug-flow is widely applied and has dual purposes with the live broadcast technology, however, in the prior art, when the video plug-flow is carried out, real-time early warning can not be carried out according to the video frame of the plug-flow, and the high-level requirements of customers are difficult to meet.
Disclosure of Invention
The present invention is directed to solve the above technical problems at least to some extent, and the present invention provides a video stream pushing method and system.
The technical scheme adopted by the invention is as follows:
a video plug-streaming method, characterized by: the method comprises the following steps:
acquiring video data in real time;
transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames;
transmitting the current video frame to an encoding buffer area;
extracting a video frame from the encoding buffer area, and then sending the current video frame to a server;
outputting the video frame;
and outputting data early warning prompt information according to the video frame in the server.
Preferably, when outputting the data early warning prompt information according to the video frame in the server, the specific steps are as follows:
intercepting a picture in a video frame in a server to obtain a screenshot;
and analyzing the current screenshot and the illegal picture, judging whether the similarity between the current screenshot and the illegal picture is greater than a threshold value, if so, outputting data early warning prompt information according to the current screenshot, and if not, not acting.
Preferably, the current screenshot and the violation picture are analyzed by using a target detection algorithm.
Preferably, when the video data is obtained in real time, the audio data is obtained at the same time, then the current audio data and the current video data are simultaneously transmitted into the coding queue, and then the video data and the audio data in the coding queue are coded into the video frame together.
Preferably, the video frame is in FLV format.
Preferably, when the current video frame is sent to the server, the transmission is realized by adopting an HTTP-FLV protocol.
Preferably, when the current video frame is sent to the server, the current video frame is transmitted by using an RTMP protocol.
Preferably, when the current video frame is sent to the server, the transmission is realized by adopting an HLS protocol.
A video plug flow system is used for realizing the video plug flow method of any one of the above items, and the video plug flow system comprises a monitoring terminal, a plug flow gateway and a server; the stream pushing gateway comprises an encoding module, a buffering module and an extracting module;
the monitoring terminal is used for acquiring video data in real time and then transmitting the current video data to the encoding module;
the encoding module is used for receiving video data sent by the monitoring terminal, transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames; the encoding module is also used for transmitting the current video frame to the buffering module;
the buffer module is used for receiving the video frame sent by the coding module and then temporarily storing the current video frame to a coding buffer area;
the extraction module is used for extracting the video frame from the buffer module and then sending the current video frame to the server;
and the server is used for receiving the video frame sent by the extraction module, then outputting the video frame and outputting data early warning prompt information according to the current video frame.
Preferably, the video plug-flow system further comprises a user terminal;
and the user terminal is used for receiving and displaying the video frame and the early warning prompt information sent by the server.
The invention has the beneficial effects that: the user can conveniently check the monitoring video in real time and obtain the early warning prompt, and the user can conveniently manage the monitoring area; specifically, in the implementation process of the invention, the monitoring terminal acquires monitoring video data in real time, then sends the video data to the stream pushing gateway for processing, the stream pushing gateway encodes the video data, then packages the video data into video frames and sends the video frames to the server, and finally the server transfers the video frames and the data early warning prompts obtained according to the video frames to the user terminal, so that the user can check the monitoring video in real time by using the user terminal and acquire the early warning prompts, and the user can conveniently manage the monitoring area.
Drawings
FIG. 1 is a flow chart of a video plug flow method of the present invention;
fig. 2 is a block diagram of the video plug flow system of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It will be understood that when an element is referred to herein as being "connected," "connected," or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Conversely, if a unit is referred to herein as being "directly connected" or "directly coupled" to another unit, it is intended that no intervening units are present. In addition, other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between … …" versus "directly between … …", "adjacent" versus "directly adjacent", etc.).
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
Example 1:
the present embodiment provides a video stream pushing method, as shown in fig. 1, including the following steps:
acquiring video data in real time; it should be noted that, in this embodiment, the obtained video data only can be an rtsp original stream of the monitoring terminal, and the encoding format is h 264;
transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames;
transmitting the current video frame to an encoding buffer area;
extracting a video frame from the encoding buffer area, and then sending the current video frame to a server;
outputting the video frame;
and outputting data early warning prompt information according to the video frame in the server.
In the embodiment, the user can conveniently check the monitoring video in real time and obtain the early warning prompt, and the user can conveniently manage the monitoring area; specifically, in the implementation process of this embodiment, the monitoring terminal acquires monitoring video data in real time, then sends the video data to the stream pushing gateway for processing, the stream pushing gateway encodes the video data, then packages the video data into video frames and sends the video frames to the server, and finally the server transfers the video frames and the data early warning prompts obtained according to the video frames to the user terminal, so that the user views the monitoring video in real time by using the user terminal, and acquires the early warning prompts, which is convenient for the user to manage the monitoring area.
Specifically, when data early warning prompt information is output according to a video frame in a server, the specific steps are as follows:
intercepting a picture in a video frame in a server to obtain a screenshot;
and analyzing the current screenshot and the illegal picture, judging whether the similarity between the current screenshot and the illegal picture is greater than a threshold value, if so, outputting data early warning prompt information according to the current screenshot, and if not, not acting.
In the embodiment, the current screenshot and the violation picture are analyzed by using the target detection algorithm, so that the analysis accuracy can be improved, and the misjudgment is avoided.
In this embodiment, when video data is obtained in real time, audio data is obtained at the same time, then the current audio data and the current video data are simultaneously transmitted into the encoding queue, and then the video data and the audio data in the encoding queue are encoded into a video frame together. Therefore, the integrity of user information acquisition can be increased, and the control of the user on the monitoring area is further facilitated.
In this embodiment, the video frame is in an FLV format. FLV, is called Flash Video, and the Video frame of FLV format is very small, the loading speed is very fast, makes the network watch the Video frame become possible, encodes the original Video data into the Video frame of FLV format, effectively solves the Video frame and imports Flash, makes the SWF file of exporting bulky, can't use the disadvantage such as being very good on the network. The embodiment adopts the video frame in the FLV format, so that the video plug-flow process has the characteristics of low delay, high compression rate and difficult packet loss, and meanwhile, the browser push is supported, the video space is prevented from being downloaded additionally, and the server can conveniently receive the video frame in real time.
In this embodiment, when the current video frame is sent to the server, the HTTP-FLV protocol is used to implement transmission. HTTP-FLV protocol, i.e. streaming media content using the HTTP protocol. Compared with an RTMP protocol, the HTTP is simpler, has no complex state interaction per se, is wider in application range, can avoid the interference of a firewall to a certain extent, can be well compatible with HTTP 302 skip and achieve flexible scheduling, can also use HTTPS as an encryption channel, and can well support a mobile terminal (such as a mobile terminal adopting an Android system and an IOS system). The content delay can be 2-5 seconds, and the opening speed is higher.
In this embodiment, when the current video frame is sent to the server, the transmission may also be implemented using an RTMP protocol. The RTMP Protocol (Real Time Messaging Protocol), which is based on TCP, is a Protocol family that includes many variations of RTMP base Protocol and RTMPT/RTMPs/RTMPE. RTMP is a network protocol designed for real-time data communication, and is mainly used for audio-video and data communication between a Flash/AIR platform and a streaming media/interaction server supporting the RTMP protocol. Software supporting the protocol includes Adobe Media Server/Ultrant Media Server/red5, etc. RTMP, like HTTP, belongs to the application layer of the TCP/IP four-layer model, however, the use of RTMP is relatively complicated compared with the HTTP-FLV protocol.
Of course, when the current video frame is sent to the server, the transmission can also be realized by adopting the HLS protocol. HLS (HTTP Live streaming) is dynamic code rate self-adaption technology of Apple, is mainly used for audio and video services of PC and Apple terminals, and comprises an m3u (8) index file, a TS media fragment file and a key encryption string file. The HLS protocol is convenient to use, but has a certain transmission delay.
Example 2:
the present embodiment provides a video stream pushing system, configured to implement the video stream pushing method according to any one of embodiments 1, as shown in fig. 2, where the video stream pushing system includes a monitoring terminal, a stream pushing gateway, and a server; the stream pushing gateway comprises an encoding module, a buffering module and an extracting module;
the monitoring terminal is used for acquiring video data in real time and then transmitting the current video data to the encoding module;
the encoding module is used for receiving video data sent by the monitoring terminal, transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames; the encoding module is also used for transmitting the current video frame to the buffering module;
the buffer module is used for receiving the video frame sent by the coding module and then temporarily storing the current video frame to a coding buffer area;
the extraction module is used for extracting the video frame from the buffer module and then sending the current video frame to the server;
and the server is used for receiving the video frame sent by the extraction module, then outputting the video frame and outputting data early warning prompt information according to the current video frame.
In this embodiment, the video stream pushing system further includes a user terminal;
and the user terminal is used for receiving and displaying the video frame and the early warning prompt information sent by the server.
The various embodiments described above are merely illustrative, and may or may not be physically separate, as they relate to elements illustrated as separate components; if reference is made to a component displayed as a unit, it may or may not be a physical unit, and may be located in one place or distributed over a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Finally, it should be noted that the present invention is not limited to the above alternative embodiments, and that various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (10)
1. A video plug-streaming method, characterized by: the method comprises the following steps:
acquiring video data in real time;
transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames;
transmitting the current video frame to an encoding buffer area;
extracting a video frame from the encoding buffer area, and then sending the current video frame to a server;
outputting the video frame;
and outputting data early warning prompt information according to the video frame in the server.
2. The video streaming method of claim 1, wherein: when data early warning prompt information is output according to video frames in a server, the method specifically comprises the following steps:
intercepting a picture in a video frame in a server to obtain a screenshot;
and analyzing the current screenshot and the illegal picture, judging whether the similarity between the current screenshot and the illegal picture is greater than a threshold value, if so, outputting data early warning prompt information according to the current screenshot, and if not, not acting.
3. The video streaming method of claim 1, wherein: and analyzing the current screenshot and the violation picture by using a target detection algorithm.
4. The video streaming method of claim 1, wherein: when video data are obtained in real time, audio data are obtained at the same time, then the current audio data and the current video data are simultaneously transmitted into an encoding queue, and then the video data and the audio data in the encoding queue are encoded into video frames together.
5. The video streaming method of claim 1, wherein: the video frame is in FLV format.
6. The video streaming method of claim 1, wherein: and when the current video frame is sent to the server, the transmission is realized by adopting an HTTP-FLV protocol.
7. The video streaming method of claim 1, wherein: and when the current video frame is sent to the server, the RTMP protocol is adopted to realize transmission.
8. The video streaming method of claim 1, wherein: and when the current video frame is sent to the server, the transmission is realized by adopting an HLS protocol.
9. A video plug-flow system, characterized by: the video plug-flow method for realizing the video plug-flow system of any one of claims 1 to 8, wherein the video plug-flow system comprises a monitoring terminal, a plug-flow gateway and a server; the stream pushing gateway comprises an encoding module, a buffering module and an extracting module;
the monitoring terminal is used for acquiring video data in real time and then transmitting the current video data to the encoding module;
the encoding module is used for receiving video data sent by the monitoring terminal, transmitting the current video data to an encoding queue, and then encoding the video data in the encoding queue into video frames; the encoding module is also used for transmitting the current video frame to the buffering module;
the buffer module is used for receiving the video frame sent by the coding module and then temporarily storing the current video frame to a coding buffer area;
the extraction module is used for extracting the video frame from the buffer module and then sending the current video frame to the server;
and the server is used for receiving the video frame sent by the extraction module, then outputting the video frame and outputting data early warning prompt information according to the current video frame.
10. A video streaming system according to claim 9, wherein: the video plug flow system also comprises a user terminal;
and the user terminal is used for receiving and displaying the video frame and the early warning prompt information sent by the server.
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| CN202011265001.0A CN112437263A (en) | 2020-11-12 | 2020-11-12 | Video plug flow method and system |
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| CN115633214A (en) * | 2022-08-22 | 2023-01-20 | 慧之安信息技术股份有限公司 | Video plug flow system and method |
| CN116828217A (en) * | 2022-11-30 | 2023-09-29 | 慧之安信息技术股份有限公司 | Multi-channel monitoring push-pull flow method and system based on edge computing equipment |
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