CN112291483B - Video pushing method and system, electronic equipment and readable storage medium - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Abstract
The application discloses a video pushing method and system, electronic equipment and a readable storage medium, wherein N paths of video streams are obtained, and each path of video stream is converted into an image according to a video frame; the first program sequentially acquires images in each path of video stream from a first frame, and splices the images of the same video frame in the N paths of video streams to acquire spliced images; and respectively reading and caching images of the first path of video stream to the Nth path of video stream from the first program by the second program to the (N + 1) th program, reading and caching the spliced image from the first program by the (N + 2) th program, and respectively coding and pushing the images cached by the second program to the (N + 2) th program. According to the technical scheme provided by the embodiment of the application, the multi-channel video stream and the spliced video stream are read by setting different programs, and the three pipelines are used for respectively communicating, so that each channel of push stream is not influenced, and the push stream time is saved.
Description
Technical Field
The present invention relates to the field of video push, and in particular, to a video push method and system, an electronic device, and a readable storage medium.
Background
The current situation of pushing multiple video streams is as follows: one camera collects video sources, and the same video source is issued to different websites by adopting a multipath plug flow technology, so that the number of simultaneous access of clients can be increased. However, the same video source is pushed by the technology, and the content viewed by the user accessing any one of the three websites is the same.
Usually, a plurality of cameras are adopted to collect video content, and after the video is collected, the video is spliced, and meanwhile, the video before and after splicing is pushed to a server. In the process, multiple paths of videos are pushed, wherein one path is spliced, so that the problem of insufficient pushing time exists.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a video push method and system, an electronic device, and a readable storage medium.
In a first aspect, a video push method is provided, including: acquiring N paths of video streams, and converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first program sequentially acquires images in each video stream from a first frame, and splices the images of the same video frame in the N video streams to acquire spliced images;
the second program to the (N + 1) th program respectively read and cache images of the first path of video stream to the (N) th path of video stream from the first program, the (N + 2) th program reads and caches the spliced image from the first program,
and respectively coding and pushing the images cached by the second program to the (N + 2) th program.
In a second aspect, a push system is provided, which includes: the video acquisition module is used for acquiring N paths of video streams and converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first encoding module is specifically used for acquiring the ith frame image in each path of video stream, splicing the ith frame image in the N paths of video streams to acquire the ith spliced image, wherein i is an integer starting from 1;
the second coding module to the (N + 1) th coding module are used for reading and caching the ith frame image of the first path of video stream to the nth path of video stream from the first coding module;
the N +2 th encoding module is used for reading the ith spliced image from the first encoding module and caching the ith spliced image,
the compression module is used for respectively encoding the images cached by the second encoding module to the (N + 2) th encoding module;
and the transmission module is used for respectively transmitting the coded video streams.
In a third aspect, an electronic device is provided, which includes:
one or more processors;
a memory for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to perform the video push method described above.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which program, when executed by a processor, implements the video push method as described above.
According to the technical scheme provided by the embodiment of the application, the multi-channel video stream and the spliced video stream are read by setting different programs, and the three pipelines are used for respectively communicating, so that each channel of push stream is not influenced, and the push stream time is saved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a flowchart of a video push method in the present embodiment;
fig. 2 is a diagram showing a configuration of a video push system in the present embodiment;
fig. 3 is a schematic structural diagram of an electronic device in this embodiment.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the present embodiment provides a video push method, including: acquiring N paths of video streams, and converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first program sequentially acquires images in each video stream from a first frame, and performs image splicing on the images of the same video frame in the N video streams to acquire spliced images;
the second program to the (N + 1) th program respectively read and cache images of the first path of video stream to the N path of video stream from the first program, the (N + 2) th program reads and caches the spliced image from the first program,
and respectively coding and pushing the images cached by the second program to the (N + 2) th program.
In this embodiment, the multiple paths of video streams and the spliced video streams are read by setting different programs, and the three pipelines are used for communication respectively, so that each path of push stream is not affected, and the push stream time is saved.
The video pushing method flow is given in fig. 1, taking two video streams as an example for obtaining and pushing, obtaining two video streams from a video collecting device after the video collecting device collects a video, converting the video stream of each video stream into an image according to a video frame, obtaining the two video streams by a first program, specifically calling the video stream in the video collecting device by using opencv, where opencv is an open source image processing library, obtaining image data of one frame in each video stream by the first program each time, and then splicing the first frame images of the two video streams to form a spliced image; reading the first path of video stream image, the second path of video stream image and the spliced image from the first program respectively through a second program, a third program and a fourth program, wherein the image in the first program is read for one frame, and the data of the frame is emptied until all the image data are read by the second program, the third program and the fourth program; after the image data in the first program is completely emptied, the first program acquires second frame image data in each path of video stream, finally splices the second frame images of the two paths of video streams to form a spliced image, and repeats the steps until all the video stream data are acquired or a program is stopped;
in the above steps, the second program, the third program and the fourth program do not directly perform stream pushing after reading the image data in the first program, cache the image data, and perform further encoding on the cached image data and then perform push transmission.
In this embodiment, in order to temporarily store read image data, three fifo files, that is, three memory files, are created, so that image data can be written in and read out conveniently, a first program writes image data and a stitched image in a multi-channel video stream in the memory files, a second program, a third program, and a fourth program read corresponding image data from the memory files, and after data in each memory file is read, the corresponding read data is immediately cleared, so that the validity of the memory file storage is ensured.
In this embodiment, the process of performing video push streaming is mainly divided into two processes, the first process is a process of acquiring and splicing images of multiple paths of video streams by a first program, the second process is a process of reading image data from the first program by multiple programs such as a second program and a third program, and multiple steps in the second process are divided into different channels and performed simultaneously without affecting each other, so that the time for pushing streaming is greatly reduced.
Further, the method comprises the following steps: the first program acquires the ith frame image in each path of video stream, and carries out image splicing on the ith frame image in the N paths of video streams to acquire the ith spliced image, wherein i is an integer starting from 1;
respectively reading and caching ith frame images of the first path of video stream to the nth path of video stream from the first program by a second program to an (N + 1) th program, and reading and caching the ith spliced image from the first program by an (N + 2) th program;
and repeating the two steps until the end.
In this embodiment, the first program acquires one frame of image in the multiple video streams, processes, for example, splicing and reading the second program, each time one frame of image in the multiple video streams is processed, and when one frame of image in the multiple video streams is read, reads and splices the next frame of image.
Further, the splicing specifically includes: and overlapping all the images corresponding to the same video frame to form a spliced image.
In this embodiment, after the images of the video streams are obtained, the images of the multiple video streams are spliced to form a spliced image, the mode adopted in this embodiment is performed by directly overlapping the images of the multiple videos, and the sizes, i.e., resolutions, of the obtained images of the multiple video streams are the same, so that the images of different video streams are overlapped with each other, and this overlapping mode enables the splicing speed of the multiple video streams to be fast, further ensures that the video push method in this embodiment is fast, and saves time. In addition, in this embodiment, the image splicing of the multiple video streams may also be performed in the following manner, taking the image splicing of two video streams as an example, feature point extraction is performed on two images, the extracted feature points are matched, the matched two images are registered, one of the registered images is copied and copied to the other image for splicing, and after the splicing is completed, processing of an overlapping boundary, such as weighted fusion processing, may also be performed.
Further, after converting each video stream into an image according to a video frame, the method further includes: and converting the converted image format into a YUV format.
In this embodiment, after the video frame image of each path of video stream is read, the format of the image is immediately converted into the YUV format, the format of the acquired image data is generally the RGB format, but the YUV format data needs to be used in the subsequent compression and stream pushing, so that the format is converted well when the video frame image is acquired, so as to facilitate use.
Further, the coded video adopts an I frame and a P frame.
The second program, the third program to the (N + 2) th program read the image and then buffer the image, and then encode the buffered data and push the data, and during encoding, in order not to affect the real-time performance of the video push stream, in this embodiment, the encoding only uses two types, I frame and P frame, and it should be understood by those skilled in the art that the frame (also referred to as video frame) is generally used to represent the picture after video compression, and the frame is divided into I frame, P frame and B frame. Wherein, the I (Intra) frame is an Intra-frame coding frame, is an independent frame with all decoding information, and can be independently decoded; p (Predictive) frames are predictively coded frames that require reference to a previous I frame for decoding; the B (Bi-directional) frame is a Bi-directionally predictive coded frame, which records the difference between the current frame and the previous and subsequent frames, and when decoding the B frame, it is necessary to obtain not only the previously buffered picture but also the decoded picture, and the final picture is obtained by superimposing the previous and subsequent pictures on the current frame data.
In this embodiment, the encoded video stream includes at least one Group of pictures (GOP) data, each GOP data includes a plurality of video frames, i.e., a Group of consecutive pictures. The GOP data containing the I frame may be called complete GOP data, but the B frame encoding and decoding need bidirectional prediction, take longer time, and in order to ensure timeliness of video stream push, only the I frame and the P frame are adopted for encoding in this embodiment. And the cached image data is encoded in real time, and the encoded video stream is output and is sent to the cloud end through similar protocols such as RTMP (real time Messaging protocol) and the like for a user to watch.
As shown in fig. 2, this embodiment further provides a video push system, which includes:
the video acquisition module is used for acquiring N paths of video streams, converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first encoding module is specifically used for acquiring the ith frame image in each video stream, splicing the ith frame images in the N video streams to acquire the ith spliced image, wherein i is an integer starting from 1;
the second coding module to the (N + 1) th coding module are used for reading and caching the ith frame image of the first path of video stream to the nth path of video stream from the first coding module;
the N +2 th encoding module is used for reading the ith spliced image from the first encoding module and caching the ith spliced image,
the compression module is used for respectively encoding the images cached by the second encoding module to the (N + 2) th encoding module;
and the transmission module is used for respectively transmitting the coded video streams.
In this embodiment, the multiple paths of video streams and the spliced video streams are read by setting different programs, and the three pipelines are used for communication respectively, so that each path of push stream is not affected, and the push stream time is saved.
Further, the first encoding module is further configured to superimpose all images corresponding to the same video frame to form the stitched image.
In this embodiment, after the images of the video streams are obtained, the images of the multiple video streams are spliced to form a spliced image, in this embodiment, a hard splicing mode is adopted, and the sizes, i.e., resolutions, of the obtained images of the multiple video streams are the same, so that the images of different video streams are mutually overlapped, and this overlapping mode enables the splicing speed of the multiple video streams to be fast, thereby further ensuring that the video pushing method in this embodiment is fast and saving time.
Further, the video obtaining module is further configured to convert the converted image format into a YUV format.
In this embodiment, after the video frame image of each path of video stream is read, the format of the image is immediately converted into the YUV format, the format of the acquired image data is generally the RGB format, but the YUV format data needs to be used in the subsequent compression and stream pushing, so that the format is converted well when the video frame image is acquired, so as to facilitate use.
In this embodiment, to achieve video acquisition, video stream processing, stream pushing, and user watching, the framework mainly includes three parts, an equipment end for acquiring video, a streaming media server in communication connection with the equipment end, and a user end in communication connection with the streaming media server; the system described in this embodiment mainly refers to a system provided in a streaming media server, where an equipment end acquires video raw data, compresses the video raw data, and pushes the compressed video raw data to the streaming media server, and performs the streaming in the above embodiment through the streaming media server, and configures an address to be subjected to streaming in the streaming media server, and in the step of performing transmission after the compression, multiple paths of video streams are all pushed to the configured address, and then a user end needs to input the address to decode a compressed data stream, so as to implement video playing. The user side may be a web page or a mobile side, and the like, wherein the streaming media server is preferably deployed on a computer side of the video capture device, and the computer side is accessed to the internet to facilitate setting of a streaming address.
Referring now to FIG. 3, shown is a block diagram of a computer system 300 suitable for use in implementing the electronic device of an embodiment of the present application.
As shown in fig. 3, the computer system includes a Central Processing Unit (CPU) 301 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM) 302 or a program loaded from a storage section into a Random Access Memory (RAM) 303. In the RAM303, various programs and data necessary for system operation are also stored. The CPU 301, ROM 302, and RAM303 are connected to each other via a bus 304. An input/output (I/O) interface 303 is also connected to bus 304.
The following components are connected to the I/O interface 303: an input portion 306 including a keyboard, a mouse, and the like; an output section including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 308 including a hard disk and the like; and a communication section 309 including a network interface card such as a LAN card, a modem, or the like. The communication section 309 performs communication processing via a network such as the internet. The drive is also connected to the I/O interface 303 as needed. A removable medium 311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 310 as necessary, so that a computer program read out therefrom is mounted into the storage section 308 as necessary.
In particular, according to an embodiment of the invention, the process described above with reference to the flowchart of fig. 1 may be implemented as a computer software program. For example, embodiments of screen brightness real-time regulation disclosed herein include a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication section, and/or installed from a removable medium. The above-described functions defined in the system of the present application are executed when the computer program is executed by the Central Processing Unit (CPU) 301.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products for real-time regulation of screen brightness for display devices according to the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves. The described units or modules may also be provided in a processor, and may be described as: a processor includes a first acquisition module, a second acquisition module, and a calculation module.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may be separate and not incorporated into the electronic device. The computer readable medium carries one or more programs, and when the one or more programs are executed by an electronic device, the electronic device is enabled to implement the multi-channel video push method in the embodiment, and specifically executes the following steps: acquiring N paths of video streams, and converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first program sequentially acquires images in each path of video stream from a first frame, and splices the images of the same video frame in the N paths of video streams to acquire spliced images;
the second program to the (N + 1) th program respectively read and cache images of the first path of video stream to the (N) th path of video stream from the first program, the (N + 2) th program reads and caches the spliced image from the first program,
and respectively coding and pushing the images cached by the second program to the (N + 2) th program.
In summary, according to the technical scheme provided by the embodiment of the application, different channels of video streams are obtained through different programs, and stream pushing is performed after coding, so that pushing of each channel of video streams is not affected, and the time for pushing the video streams is shortened.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, and may also be implemented by software in combination with necessary hardware.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A video push method, comprising:
acquiring N paths of video streams, and converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first program sequentially acquires images in each path of video stream from a first frame, and splices the images of the same video frame in the N paths of video streams to acquire spliced images;
the second program to the (N + 1) th program respectively read and cache images of the first path of video stream to the (N) th path of video stream from the first program, the (N + 2) th program reads and caches the spliced image from the first program,
and respectively coding and pushing the images cached by the second program to the (N + 2) th program.
2. The video push method according to claim 1, comprising:
the first program acquires the ith frame image in each path of video stream, and carries out image splicing on the ith frame image in the N paths of video streams to acquire the ith spliced image, wherein i is an integer starting from 1;
respectively reading and caching ith frame images of the first path of video stream to the nth path of video stream from the first program by a second program to an (N + 1) th program, and reading and caching the ith spliced image from the first program by an (N + 2) th program;
and repeating the two steps until the end.
3. The video pushing method according to claim 2, wherein the splicing specifically comprises: and overlapping all the images corresponding to the same video frame to form a spliced image.
4. The video push method according to claim 1, further comprising, after converting each video stream into images according to video frames: and converting the converted image format into a YUV format.
5. The video push method according to claim 1, wherein the encoded video employs I-frames and P-frames.
6. A video push system, comprising:
the video acquisition module is used for acquiring N paths of video streams, converting each path of video stream into an image according to a video frame, wherein N is an integer greater than 2;
the first encoding module is specifically used for acquiring the ith frame image in each path of video stream, splicing the ith frame image in the N paths of video streams to acquire the ith spliced image, wherein i is an integer starting from 1;
the second coding module to the (N + 1) th coding module are used for reading and caching the ith frame image of the first path of video stream to the nth path of video stream from the first coding module;
the N +2 th encoding module is used for reading the ith spliced image from the first encoding module and caching the ith spliced image,
the compression module is used for respectively encoding the images cached by the second encoding module to the (N + 2) th encoding module;
and the transmission module is used for respectively transmitting the coded video streams.
7. The video push system of claim 6, wherein the first encoding module is further configured to superimpose all images corresponding to a same video frame to form the stitched image.
8. The video push system of claim 6, wherein the video acquisition module is further configured to convert the converted image format to YUV format.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors;
memory storing one or more programs that, when executed by the one or more processors, cause the one or more processors to perform the video push method of any of claims 1-5.
10. A computer-readable storage medium storing a computer program, wherein the program, when executed by a processor, implements the video push method of any one of claims 1-5.
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| CN107027042B (en) * | 2017-04-19 | 2020-08-07 | 中国电子科技集团公司电子科学研究院 | Multi-GPU-based panoramic real-time video stream processing method and device |
| US11735194B2 (en) * | 2017-07-13 | 2023-08-22 | Dolby Laboratories Licensing Corporation | Audio input and output device with streaming capabilities |
| CN107396068A (en) * | 2017-08-30 | 2017-11-24 | 广州杰赛科技股份有限公司 | The synchronous tiled system of panoramic video, method and panoramic video display device |
| CN109429037B (en) * | 2017-09-01 | 2021-06-29 | 杭州海康威视数字技术股份有限公司 | Image processing method, device, equipment and system |
| CN108391089B (en) * | 2018-03-15 | 2024-04-05 | 湖南爱愽思科技有限责任公司 | Monitoring flow pushing method and device of multi-path camera and monitoring system |
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