CN114401436B - Video cache sorting method based on edge calculation - Google Patents
Video cache sorting method based on edge calculation Download PDFInfo
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- CN114401436B CN114401436B CN202210124476.0A CN202210124476A CN114401436B CN 114401436 B CN114401436 B CN 114401436B CN 202210124476 A CN202210124476 A CN 202210124476A CN 114401436 B CN114401436 B CN 114401436B
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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
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a video cache arrangement method based on edge calculation, which comprises the following steps: s1, inputting video signals into a video buffer arrangement system by a synchronous blanking signal separation module, and respectively transmitting effective frame data input and clocks of the effective input video data into a video data buffer by the synchronous blanking signal separation module; s2, acquiring a video file from the storage device by utilizing the video meta-information acquisition module and analyzing video meta-information corresponding to the video file; s3, starting a video processor; s4, performing service migration on the reference video signal, and updating the availability of the service; s5, acquiring edge metadata management data by utilizing the updating, wherein the edge metadata management data is synchronized into an edge metadata storage through metadata sent by a controller of a reference service, and the accurate control of video content is provided with an efficient and standardized video data exchange and video data extraction method.
Description
Technical Field
The invention belongs to the technical field of video processing, and particularly relates to a video cache sorting method based on edge calculation.
Background
With the development of society and the progress of technology, the quality and bandwidth of the network are also greatly improved, and network video becomes the first choice for users to watch video. Because of the influence of various factors, most users can download network videos into local storage equipment in advance so as to call out the network videos for watching at any time, and the following main application occasions are provided: (1) When the broadband network is not reachable or the use cost (mobile traffic) is expensive; (2) Long distance travel cannot access broadband networks (e.g., airplane sitting, sea going, out of the way, in deep mountain, etc.); (3) When the broadband network is unstable (e.g., when traveling through tunnels, upstream, offshore).
The offline downloaded videos are complex in source and have no uniform format, video meta-information is often incomplete, and if the offline videos are huge in quantity, the videos are difficult to manage due to the incomplete video meta-information, so that a user is provided with poor experience when traversing and searching the videos.
First, in the conventional system, a standardized generation method for video information data is lacking, and further, a missing record using video information data is lacking. The application of the existing monitoring video is integrated into the daily work of administrative departments, reconnaissance departments and the like, but the adopted manual mode is still adopted for browsing and investigation, which is time-consuming and labor-consuming.
Secondly, the problems of cross-domain and cross-department sharing of video information and interconnection and intercommunication with other information systems are outstanding, and the information becomes individual islands due to the non-uniform language of the cross-system, so that the construction and application of big data and big information systems are limited.
And the problem of storage and transmission is solved, a large amount of storage space and transmission bandwidth are saved, the video data is subjected to large-scale compression, the problem of image blurring is caused, and the mode of fixing the compression ratio during video compression is not flexible enough, so that a large amount of storage space and transmission bandwidth are occupied.
Meanwhile, the problem of high-efficiency calculation exists, and the video monitoring requires the versatility and real-time performance of calculation, and the specificity of video data brings about the increase of calculation cost, so that a unified video calculation theory and framework for video monitoring need to be constructed.
The video informatization datamation application links lack unified standards and specifications. All these problems are fundamental to the unintelligible of video content and do not have an efficient, standardized method of video data exchange and video data extraction.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a video cache arrangement method based on edge calculation, which synchronizes metadata sent by a controller of a reference service into an edge metadata storage based on edge calculation, performs accurate data caching and arrangement, ensures that each link of video informatization datamation application has unified standards and specifications, accurately controls video content, and provides a high-efficiency and standardized video data exchange and video data extraction method.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the video cache arrangement method based on edge calculation is applied to a video cache arrangement system, and the video cache arrangement system comprises a synchronous blanking signal separation module, a video processor and a video data buffer, wherein the synchronous blanking signal separation module, the video processor and the video data buffer are in telecommunication connection, and the video data buffer is arranged between the synchronous blanking signal separation module and the video processor;
the video cache arrangement method comprises the following steps:
s1, inputting video signals into a video buffer arrangement system by a synchronous blanking signal separation module, respectively transmitting effective frame data input and clocks of the effective input video data into a video data buffer by the synchronous blanking signal separation module, receiving the clocks of the effective output video data sent by a video processor by the video data buffer, simultaneously sending the effective frame data output to the video processor, setting a video buffer zone in the video data buffer, and outputting the data processed by the video processor as output video signals;
s2, the video cache arrangement system further comprises a video meta-information acquisition module, wherein the video meta-information acquisition module is used for acquiring a video file from the storage device and analyzing video meta-information corresponding to the video file, and the video file comprises video data and audio data;
s3, starting a video processor, outputting a buffer area sequence number and selecting a bidirectional prediction frame signal to enable the bidirectional prediction frame signal to point to a video buffer area, sequentially reading data by a plurality of video buffer areas, inputting the buffer area sequence number, selecting a video signal by a signal under Linux, sequentially reading data by the plurality of video buffer areas when starting, and writing data according to the same sequence;
s4, performing service migration on the reference video signal, and updating the availability of the service;
installing flow rules, uninstalling flow rules or updating parameters of the existing flow rules according to the update request;
synchronously installing or unloading tasks according to the request;
different weights are distributed to different edge computing tasks in the task edge computing table so as to process the edge computing tasks according to the weights;
s5, acquiring edge metadata management data by utilizing the updating, wherein the edge metadata management data is synchronized into an edge metadata storage through metadata sent by a controller of a reference service, and the edge metadata storage stores the edge metadata.
Preferably, the bi-directional prediction frame signal refers to whether the target video buffer area corresponding to the buffer area sequence number selection signal is input each time points to the corresponding video buffer area at the same time, if so, the sequence number of the currently pointed video buffer area is not changed, namely, the numerical value of the current video buffer area is read again; conversely, if the points to the same (repeated), the number of the video buffer area pointed at currently is not changed, namely, the numerical value of the current video buffer area is read again, namely, the numerical value of the current video buffer area is covered by the current frame data.
Preferably, the video cache arrangement system comprises a communication module, wherein the communication module is used for converting and picking up between frequency numbers, the communication module comprises an audio data acquisition unit and a video analysis unit, the video analysis unit is used for acquiring audio data corresponding to the video file, and the audio data acquisition unit is used for receiving the audio data.
Preferably, the communication module comprises a vector processing unit, a sequence generating unit and a summary synthesizing unit, wherein the vector processing unit is used for processing the video data through a model to obtain a vector set corresponding to the video data.
Preferably, the sequence generating module is configured to process the vector set through a second model to obtain a target sequence; and the abstract synthesis module is used for generating a video abstract of the video data according to the target sequence.
Preferably, the video cache arrangement system further comprises an edge metadata management module, wherein the edge metadata management module stores update and change data through an edge node; the edge metadata management module includes an edge data node.
Preferably, the edge node includes edge metadata management and edge metadata storage, the edge node storage including: the edge metadata management receives change data sent by a controller of the reference service;
the edge metadata management synchronizes the change data to the edge metadata store; the edge metadata storage stores the change data.
Preferably, the updating the availability in step S4 includes: initializing a kernel of at least one edge node; transmitting the initialization kernel and training samples to at least one multi-edge computing-based application device; acquiring parameters fed back by the at least one application program device based on the multi-edge calculation, wherein the parameters are acquired by the at least one application program device based on the multi-edge calculation through back propagation of a neural network; and updating the availability of the service according to the parameters and the preset learning rate.
Preferably, in step S5, different weights are assigned to different edge computing tasks in the task edge computing table, so as to process the edge computing task according to the weights, including: arranging edge calculation processing standards of at least one edge node in the weight in descending order to generate a task edge calculation table; and sequentially accessing at least one edge node in the weight according to the sequence of the task edge calculation table.
The invention has the technical effects and advantages that:
the invention provides a video cache arrangement method based on edge calculation, which adds a video meta-information acquisition module in the simple configuration of a synchronous blanking signal separation module, a video processor and a video data buffer in the original video cache arrangement system, uses the video meta-information acquisition module to carry out service migration on a reference video signal, carries out availability update on the service, synchronizes metadata sent by a controller of the reference service into an edge metadata storage based on edge calculation, carries out accurate data caching and arrangement, ensures that each link of video informatization datamation application has unified standards and specifications, and provides a high-efficiency and standardized video data exchange and video data extraction method.
Drawings
FIG. 1 is a flow chart of a video cache arrangement method based on edge calculation;
fig. 2 is a block diagram of a video cache arrangement system based on edge computation according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a video buffer storage arrangement method based on edge calculation as shown in fig. 1-2, which is applied to a video buffer storage arrangement system, wherein the video buffer storage arrangement system comprises a synchronous blanking signal separation module, a video processor and a video data buffer storage, the synchronous blanking signal separation module, the video processor and the video data buffer storage are in telecommunication connection, and the video data buffer storage is arranged between the synchronous blanking signal separation module and the video processor;
the video cache arrangement method comprises the following steps:
s1, inputting video signals into a video buffer arrangement system by a synchronous blanking signal separation module, respectively transmitting effective frame data input and clocks of the effective input video data into a video data buffer by the synchronous blanking signal separation module, receiving the clocks of the effective output video data sent by a video processor by the video data buffer, simultaneously sending the effective frame data output to the video processor, setting a video buffer zone in the video data buffer, and outputting the data processed by the video processor as output video signals;
s2, the video cache arrangement system further comprises a video meta-information acquisition module, wherein the video meta-information acquisition module is used for acquiring a video file from storage equipment and analyzing video meta-information corresponding to the video file, and the video file comprises video data and audio data;
s3, starting a video processor, outputting a buffer area sequence number and selecting a bidirectional prediction frame signal to enable the bidirectional prediction frame signal to point to a video buffer area, sequentially reading data by a plurality of video buffer areas, inputting the buffer area sequence number, selecting a video signal by a signal under Linux, sequentially reading data by the plurality of video buffer areas when starting, and writing data according to the same sequence;
s4, service migration is carried out with reference to the video signal, and availability update is carried out on the service:
installing flow rules, uninstalling flow rules or updating parameters of the existing flow rules according to the update request;
synchronously installing or unloading tasks according to the request;
different weights are distributed to different edge computing tasks in the task edge computing table so as to process the edge computing tasks according to the weights;
s5, acquiring edge metadata management data by utilizing the updating, wherein the edge metadata management data is synchronized into an edge metadata storage through metadata sent by a controller of a reference service, and the edge metadata storage stores the edge metadata.
Specifically, the bi-directional prediction frame signal refers to whether the target video buffer area corresponding to the buffer area sequence number selection signal is input each time points to the corresponding video buffer area at the same time, if so, the sequence number of the currently pointed video buffer area is not changed, namely, the numerical value of the current video buffer area is read again; conversely, if the points to the same (repeated), the number of the video buffer area pointed at currently is not changed, namely, the numerical value of the current video buffer area is read again, namely, the numerical value of the current video buffer area is covered by the current frame data.
Specifically, the video cache arrangement system comprises a communication module, wherein the communication module is used for converting and picking up between frequency numbers, the communication module comprises an audio data acquisition unit and a video analysis unit, the video analysis unit is used for acquiring audio data corresponding to the video file, and the audio data acquisition unit is used for receiving the audio data.
Specifically, the communication module comprises a vector processing unit, a sequence generating unit and a summary synthesizing unit, wherein the vector processing unit is used for processing video data through a model to obtain a vector set corresponding to the video data.
Specifically, the sequence generating module is configured to process the vector set through a second model to obtain a target sequence; and the abstract synthesis module is used for generating a video abstract of the video data according to the target sequence.
Specifically, the video cache arrangement system further comprises an edge metadata management module, wherein the edge metadata management module stores update change data through an edge node; the edge metadata management module includes an edge data node.
Specifically, the edge node includes edge metadata management and edge metadata storage, and the edge node storage includes: the edge metadata management receives change data sent by a controller of the reference service; the edge metadata management synchronizes the change data to the edge metadata store; the edge metadata storage stores the change data.
Specifically, the updating the availability in step S4 includes: initializing a kernel of at least one edge node; transmitting the initialization kernel and training samples to at least one multi-edge computing-based application device; acquiring parameters fed back by the at least one application program device based on the multi-edge calculation, wherein the parameters are acquired by the at least one application program device based on the multi-edge calculation through back propagation of a neural network; and updating the availability of the service according to the parameters and the preset learning rate.
Specifically, in step S5, different weights are assigned to different edge computing tasks in the task edge computing table, so as to process the edge computing task according to the weights, including: arranging edge calculation processing standards of at least one edge node in the weight in descending order to generate a task edge calculation table; and sequentially accessing at least one edge node in the weight according to the sequence of the task edge calculation table.
In summary, in the video cache arrangement method based on edge calculation provided by the invention, in the original video cache arrangement system, the simple configuration of the synchronous blanking signal separation module, the video processor and the video data buffer is added with the video meta-information acquisition module, the video meta-information acquisition module is used for carrying out service migration on the reference video signal, carrying out availability update on the service, and synchronizing the metadata sent by the controller of the reference service into the edge metadata storage based on edge calculation, so as to carry out accurate data caching and arrangement, ensure that each link of video informatization datamation application has unified standards and specifications, and provide a high-efficiency and standardized video data exchange and video data extraction method.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The video buffer storage arrangement method based on edge calculation is applied to a video buffer storage arrangement system, the video buffer storage arrangement system comprises a synchronous blanking signal separation module, a video processor and a video data buffer, the synchronous blanking signal separation module, the video processor and the video data buffer are in telecommunication connection, the video data buffer is arranged between the synchronous blanking signal separation module and the video processor,
the video cache arrangement method is characterized by comprising the following steps of:
s1, inputting video signals into a video buffer arrangement system by a synchronous blanking signal separation module, respectively transmitting effective frame data input and clocks of the effective input video data into a video data buffer by the synchronous blanking signal separation module, receiving the clocks of the effective output video data sent by a video processor by the video data buffer, simultaneously sending the effective frame data output to the video processor, setting a video buffer zone in the video data buffer, and outputting the data processed by the video processor as output video signals;
s2, the video cache arrangement system further comprises a video meta-information acquisition module, wherein the video meta-information acquisition module is used for acquiring a video file from the storage device and analyzing video meta-information corresponding to the video file, and the video file comprises video data and audio data;
s3, starting a video processor, outputting a buffer area sequence number and selecting a bidirectional prediction frame signal to enable the bidirectional prediction frame signal to point to a video buffer area, sequentially reading data by a plurality of video buffer areas, inputting the buffer area sequence number, selecting a video signal by a signal under Linux, sequentially reading data by the plurality of video buffer areas when starting, and writing data according to the same sequence;
s4, service migration is carried out with reference to the video signal, and availability update is carried out on the service:
installing flow rules, uninstalling flow rules or updating parameters of the existing flow rules according to the update request;
synchronously installing or unloading tasks according to the request;
different weights are distributed to different edge computing tasks in the task edge computing table so as to process the edge computing tasks according to the weights;
s5, acquiring edge metadata management data by utilizing the updating, wherein the edge metadata management data is synchronized into an edge metadata storage through metadata sent by a controller of a reference service, and the edge metadata storage stores the edge metadata.
2. The video cache arrangement method based on edge calculation according to claim 1, wherein: the bidirectional predictive frame signal refers to whether the target video buffer area corresponding to the buffer area sequence number selection signal is input each time points to the corresponding video buffer area at the same time, if so, the sequence number of the video buffer area which is currently pointed is not changed, namely, the numerical value of the current video buffer area is read again; conversely, if the points to the same (repeated), the number of the video buffer area pointed at currently is not changed, namely, the numerical value of the current video buffer area is read again, namely, the numerical value of the current video buffer area is covered by the current frame data.
3. The video cache arrangement method based on edge calculation according to claim 1, wherein: the video cache arrangement system comprises a communication module, wherein the communication module is used for converting and picking up between frequency numbers, the communication module comprises an audio data acquisition unit and a video analysis unit, the video analysis unit is used for acquiring audio data corresponding to the video file, and the audio data acquisition unit is used for receiving the audio data.
4. A video cache arrangement method based on edge computation according to claim 3, wherein: the communication module comprises a vector processing unit, a sequence generating unit and a summary synthesizing unit, wherein the vector processing unit is used for processing video data through a model to obtain a vector set corresponding to the video data.
5. The video cache arrangement method based on edge calculation according to claim 4, wherein: the sequence generation module is used for processing the vector set through a second model to obtain a target sequence; and the abstract synthesis module is used for generating a video abstract of the video data according to the target sequence.
6. The video cache arrangement method based on edge calculation according to claim 1, wherein: the video cache arrangement system further comprises an edge metadata management module, wherein the edge metadata management module stores update change data through an edge node; the edge metadata management module includes an edge data node.
7. The video cache arrangement method based on edge calculation according to claim 6, wherein: the edge node includes edge metadata management and edge metadata storage, the edge node storage including: the edge metadata management receives change data sent by a controller of the reference service;
the edge metadata management synchronizes the change data to the edge metadata store; the edge metadata storage stores the change data.
8. The video cache arrangement method based on edge calculation according to claim 1, wherein: the updating of the availability in the step S4 includes: initializing a kernel of at least one edge node; transmitting the initialization kernel and training samples to at least one multi-edge computing-based application device; acquiring parameters fed back by the at least one application program device based on the multi-edge calculation, wherein the parameters are acquired by the at least one application program device based on the multi-edge calculation through back propagation of a neural network; and updating the availability of the service according to the parameters and the preset learning rate.
9. The video cache arrangement method based on edge calculation according to claim 1, wherein: in step S5, different weights are assigned to different edge computing tasks in the task edge computing table, so as to process the edge computing task according to the weights, including: arranging edge calculation processing standards of at least one edge node in the weight in descending order to generate a task edge calculation table; and sequentially accessing at least one edge node in the weight according to the sequence of the task edge calculation table.
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