CN117395451A - Video file access method and system based on cloud storage - Google Patents
Video file access method and system based on cloud storage Download PDFInfo
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- CN117395451A CN117395451A CN202311177404.3A CN202311177404A CN117395451A CN 117395451 A CN117395451 A CN 117395451A CN 202311177404 A CN202311177404 A CN 202311177404A CN 117395451 A CN117395451 A CN 117395451A
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- 239000012634 fragment Substances 0.000 claims abstract description 59
- 239000000284 extract Substances 0.000 claims abstract description 4
- 206010033307 Overweight Diseases 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 6
- 230000008921 facial expression Effects 0.000 claims description 6
- 230000014509 gene expression Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 claims 1
- 238000013527 convolutional neural network Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23113—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving housekeeping operations for stored content, e.g. prioritizing content for deletion because of storage space restrictions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
- H04L67/108—Resource delivery mechanisms characterised by resources being split in blocks or fragments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
- H04N21/25875—Management of end-user data involving end-user authentication
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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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Graphics (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The invention discloses a video file access method and a system based on cloud storage, wherein the method is to match a user name and a password for a mobile terminal, so that the mobile terminal and a cloud server are in data connection; the mobile terminal sends the address length and the number requirement of the storage space to the cloud server, and the cloud server automatically allocates the corresponding number of storage spaces with consistent address length for the mobile terminal; the mobile terminal transmits the video file to a cloud server, the cloud server divides the video file into a plurality of fragments, and each fragment is stored in a storage space in a one-to-one correspondence manner; the cloud server extracts the time point information of the head and tail of each segment, stores and displays the time point information; the mobile terminal sends a request for downloading one or more time point video files to the cloud server, and the cloud server matches the fragments of the time points according to the request and sends the fragments to the mobile terminal. By adopting the technical scheme, the files which need to be frequently accessed are ordered according to the priority at the cloud, so that the required files are quickly accessed.
Description
Technical Field
The invention belongs to the technical field of cloud storage, and relates to a video file access method and system based on cloud storage.
Background
With the development of internet technology and the upgrading of shooting capability of terminal equipment, people use mobile terminals to shoot or acquire video files with different volumes and formats and store the video files for a long time so as to generate video files with large data volume. However, the existing mobile terminal cannot store a large amount of video files for a long time due to the limitation of volume and size, otherwise, the operation performance of the mobile terminal is easily affected. In the prior art, a cloud disk database related to big data which is raised in recent years is utilized to manage video files, the video files are transmitted to a cloud for storage, and then the video files are accessed on an application program of a mobile terminal. When the video file is large, there are problems of slow loading of data and low data transfer rate.
In the prior art, as disclosed in patent number CN201710284102.4, a video storage and access method and a video storage system are disclosed, where the video storage method is applied to a server terminal to determine user information corresponding to a video to be stored; transmitting a video storage instruction to a network storage server, wherein the video storage instruction comprises user information and time information corresponding to a video to be stored; generating access identifiers corresponding to address information of a network storage server, user information and time information corresponding to video to be stored; and providing an access identifier for a user corresponding to the video to be stored. Meanwhile, in the video access method, the client terminal acquires and analyzes the access identifier provided by the server terminal, and obtains and utilizes the address information of the network storage server, the user information and the time information corresponding to the video to be accessed to retrieve and access the video. By the video storage and access method and the video storage and access device provided by the embodiment of the patent, the video security of a user in the video access process is improved. However, the prior art cannot realize quick access to the required files, and needs to take a long loading time to load the related video, so that the searching is inconvenient.
Disclosure of Invention
The invention aims to provide a video file access method and system based on cloud storage, which realize quick access to required files.
In order to achieve the above purpose, the basic scheme of the invention is as follows: a video file access method based on cloud storage comprises the following steps:
matching a user name and a password for the mobile terminal, and establishing data connection between the mobile terminal and the cloud server through the user name and the password;
the mobile terminal sends the address length and the number requirement of the storage space to the cloud server, and the cloud server automatically allocates the corresponding number of storage spaces with consistent address length for the mobile terminal;
the mobile terminal transmits the video file to a cloud server, the cloud server divides the video file into a plurality of fragments, and each fragment is stored in the storage space in a one-to-one correspondence manner;
the cloud server extracts the time point information of the head and tail of each segment, stores and displays the time point information;
the mobile terminal sends a request for downloading one or more time point video files to the cloud server, and the cloud server matches the fragments of the time points according to the request and sends the fragments to the mobile terminal.
The working principle and the beneficial effects of the basic scheme are as follows: according to the technical scheme, the files which need to be frequently accessed are ordered according to the priority at the cloud, so that the required files are quickly accessed, the access time is saved, the access efficiency is improved, and the waiting or searching time is prevented from being too long due to long-time loading.
Further, the cloud server divides the video file into a plurality of segments, and the specific dividing method is as follows:
the head of each segment corresponds to different time nodes;
giving each fragment a corresponding weight, wherein the higher the priority of the fragment with high weight is;
the cloud server analyzes the video fragments, analyzes each frame of the image on the basis of the high-weight fragments, sets a content-based mark m, wherein m is obtained from the frame content, and adds a key frame mark m to the fragments segmented according to the time nodes;
and the cloud server dynamically and synchronously adjusts the address ordering of the storage space, and defines the fragment with high weight as the address of the video, when the mobile terminal accesses the video file, the m part of the fragment part with the highest priority is preferentially accessed.
The segmentation method is simple and convenient to use.
Further, the weight calculating method comprises the following steps:
setting a basic weight Y0: according to the selection of a user, a segment node basic weight Y0 is given, if the user selects, Y0=1, and if the user selects, Y0=0;
setting a manual addition weight Y1 according to the basic weight: if the user selects a plurality of fragments to give basic weight, the user is presented with the part where y0=1 is first preferentially extracted, and the added value is given by manual sorting, and if the number of fragments is n, y1=y0+n-1 is in the order from large to small.
And calculating the weight value, so that the subsequent use is facilitated.
Further, the mark m is a pattern: building, special weather scene, special shape or portrait identification, or text content: landmark names or hint text.
The graphic or text analysis is selected according to the requirement, and the use is flexible.
Further, the method for analyzing the graph and the text content comprises the following steps:
acquiring a video clip;
acquiring the facial expressions of people, the actions of the people and objects and the environment images of all frames in a video;
comparing the facial expression of the person, the actions of the person and the object and the environmental image in the adjacent frames, and taking the frame with the change rate exceeding the threshold value as the target frame;
identifying the text information in the target frame and the first two frames thereof;
and combining the expression of the object plane of the person, the action of the person and the object in the target frame, one of the environmental image with the largest change rate with the previous frame, and the text information in the target frame and the first two frames of the target frame as a mark m of the target frame.
By combining the target frame and the text information in the first two frames of the target frame as the mark m of the target frame, the information is more comprehensive and accurate.
Further, the method for adding the key frame m to the segments segmented according to the time nodes comprises the following steps:
and analyzing each frame of the image, setting a content-based mark m, recording a time node corresponding to m as Tm, binding the value with the video and storing the value to a cloud server, and accessing the m part of the fragment part with the highest priority when the mobile terminal accesses the video file.
And the key frame m is added to the corresponding fragment, so that the operation is simple.
Further, the specific method for downloading the video file by the mobile terminal is as follows:
the mobile terminal sends a request for downloading a time point video file to the cloud server, and the cloud server sends corresponding fragment data to the mobile terminal after receiving the request;
when the mobile terminal sends a fragment for downloading a plurality of continuous video files to the cloud server, the cloud server executes a merging command, generates a complete video file and sends the complete video file to the mobile terminal;
when the mobile terminal needs to download the fragments of the plurality of discontinuous video files, the cloud server sequentially sends the fragments of the plurality of discontinuous video files to the mobile terminal according to the priority order.
The operation is simple, and the use is facilitated.
The invention also provides a video file access system based on cloud storage, which comprises a mobile terminal, a cloud server and an application module, wherein the mobile terminal is connected with the cloud server, the application module is respectively connected with the cloud server of the mobile terminal, and the application module executes the method of the invention to control video file access between the mobile terminal and the cloud server.
The application module of the system is utilized to control the connection between the mobile terminal and the cloud server, so that the required file can be quickly accessed.
Further, the mobile terminal, the cloud server and the application module are connected through the wireless communication module.
Through wireless connection, simple structure, facilitate the use.
Drawings
Fig. 1 is a flow chart of a video file access method based on cloud storage.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The invention discloses a video file access method based on cloud storage, which realizes quick access to required files by sequencing files which need to be frequently accessed according to priority in the cloud. As shown in fig. 1, the method comprises the following steps:
matching a user name and a password for the mobile terminal, and establishing data connection between the mobile terminal and the cloud server through the user name and the password; the cloud server receives information such as a user name, a password and the like from the mobile terminal, and verifies login information;
the mobile terminal sends the address length and the number requirement of the storage space to the cloud server, and the cloud server automatically allocates the corresponding number of storage spaces with consistent address length for the mobile terminal;
the mobile terminal transmits the video file to a cloud server, the cloud server divides the video file into a plurality of fragments, and each fragment is stored in the storage space in a one-to-one correspondence manner;
the cloud server extracts the time point information of the head and tail of each segment, stores and displays the time point information;
the mobile terminal sends a request for downloading one or more time point video files to the cloud server, and the cloud server matches the fragments of the time points according to the request and sends the fragments to the mobile terminal.
In a preferred scheme of the invention, the cloud server divides the video file into a plurality of segments, and the specific dividing method is as follows:
the head of each segment corresponds to different time nodes;
giving each fragment a corresponding weight, wherein the higher the priority of the fragment with high weight is;
the cloud server analyzes the video fragments, analyzes each frame of the image on the basis of the high-weight fragments, sets a content-based mark m, wherein m is acquired from the frame content (the acquisition mode comprises, but is not limited to, identifying the frame image by using a CNN convolutional neural network so as to realize the graphic analysis of the frame representation), and adds a key frame mark m to the fragments segmented according to time nodes; preferably, the mark m is a graphic: building, special weather scene, special shape or portrait identification, or text content: landmark names or hint text.
And the cloud server dynamically and synchronously adjusts the address ordering of the storage space, and defines the fragment with high weight as the address of the video, when the mobile terminal accesses the video file, the m part of the fragment part with the highest priority is preferentially accessed.
More preferably, the weight calculating method is as follows:
setting a basic weight Y0: according to the selection of a user, a segment node basic weight Y0 is given, if the user selects, Y0=1, and if the user selects, Y0=0;
setting a manual addition weight Y1 according to the basic weight: if the user selects a plurality of fragments to give basic weight, the user is presented with the part where y0=1 is first preferentially extracted, and the added value is given by manual sorting, and if the number of fragments is n, y1=y0+n-1 is in the order from large to small.
In a preferred embodiment of the present invention,
the method for analyzing the graph and text contents comprises the following steps:
acquiring a video clip;
acquiring the facial expressions of people, the actions of the people and objects and the environment images of all frames in a video;
comparing the facial expression of the person, the actions of the person and the object and the environmental image in the adjacent frames, and taking the frame with the change rate exceeding the threshold value as the target frame;
identifying the text information in the target frame and the first two frames thereof;
and combining the expression of the object plane of the person, the action of the person and the object in the target frame, one of the environmental image with the largest change rate with the previous frame, and the text information in the target frame and the first two frames of the target frame as a mark m of the target frame.
In a preferred scheme of the invention, the method for adding the key frame m to the segments segmented according to the time nodes comprises the following steps:
and analyzing each frame of the image, setting a content-based mark m, recording a time node corresponding to m as Tm, binding the value with the video and storing the value to a cloud server, and accessing the m part of the fragment part with the highest priority when the mobile terminal accesses the video file.
In a preferred scheme of the invention, the specific method for downloading the video file by the mobile terminal is as follows:
the mobile terminal sends a request for downloading a time point video file to the cloud server, and the cloud server sends corresponding fragment data to the mobile terminal after receiving the request;
when the mobile terminal sends a fragment for downloading a plurality of continuous video files to the cloud server, the cloud server executes a merging command, generates a complete video file and sends the complete video file to the mobile terminal;
when the mobile terminal needs to download the fragments of the plurality of discontinuous video files, the cloud server sequentially sends the fragments of the plurality of discontinuous video files to the mobile terminal according to the priority order.
The invention also provides a video file access system based on cloud storage, which comprises a mobile terminal, a cloud server and an application module, wherein the mobile terminal is electrically connected with the cloud server, the application module is electrically connected with the cloud server of the mobile terminal, and the application module executes the method of the invention to control the video file access between the mobile terminal and the cloud server. The video files stored by the application module are randomly set with time points according to the needs of users, and the needed storage space is synchronized on the cloud server.
The application module of the system is utilized to control the connection between the mobile terminal and the cloud server, so that the required file can be quickly accessed.
In a preferred scheme of the invention, the video file access system further comprises a wireless communication module, and the mobile terminal, the cloud server and the application module are electrically connected through the wireless communication module. The wireless communication module can adopt communication structures such as a 5G network and the like, and is simple in structure and convenient to use through wireless connection.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The video file access method based on cloud storage is characterized by comprising the following steps:
matching a user name and a password for the mobile terminal, and establishing data connection between the mobile terminal and the cloud server through the user name and the password;
the mobile terminal sends the address length and the number requirement of the storage space to the cloud server, and the cloud server automatically allocates the corresponding number of storage spaces with consistent address length for the mobile terminal;
the mobile terminal transmits the video file to a cloud server, the cloud server divides the video file into a plurality of fragments, and each fragment is stored in the storage space in a one-to-one correspondence manner;
the cloud server extracts the time point information of the head and tail of each segment, stores and displays the time point information;
the mobile terminal sends a request for downloading one or more time point video files to the cloud server, and the cloud server matches the fragments of the time points according to the request and sends the fragments to the mobile terminal.
2. The cloud storage-based video file access method as claimed in claim 1, wherein the cloud server segments the video file into a plurality of segments, and the specific segmentation method is as follows:
the head of each segment corresponds to different time nodes;
giving each fragment a corresponding weight, wherein the higher the priority of the fragment with high weight is;
the cloud server analyzes the video fragments, analyzes each frame of the image on the basis of the high-weight fragments, sets a content-based mark m, wherein m is obtained from the frame content, and adds a key frame mark m to the fragments segmented according to the time nodes;
and the cloud server dynamically and synchronously adjusts the address ordering of the storage space, and defines the fragment with high weight as the address of the video, when the mobile terminal accesses the video file, the m part of the fragment part with the highest priority is preferentially accessed.
3. The cloud storage-based video file access method as claimed in claim 2, wherein the weight calculation method is as follows:
setting a basic weight Y0: according to the selection of a user, a segment node basic weight Y0 is given, if the user selects, Y0=1, and if the user selects, Y0=0;
setting a manual addition weight Y1 according to the basic weight: if the user selects a plurality of fragments to give basic weight, the user is presented with the part where y0=1 is first preferentially extracted, and the added value is given by manual sorting, and if the number of fragments is n, y1=y0+n-1 is in the order from large to small.
4. The cloud storage-based video file access method as claimed in claim 2, wherein the mark m is a graph: building, special weather scene, special shape or portrait identification, or text content: landmark names or hint text.
5. The cloud storage-based video file access method as claimed in claim 4, wherein the method for analyzing the graphic and text contents is as follows:
acquiring a video clip;
acquiring the facial expressions of people, the actions of the people and objects and the environment images of all frames in a video;
comparing the facial expression of the person, the actions of the person and the object and the environmental image in the adjacent frames, and taking the frame with the change rate exceeding the threshold value as the target frame;
identifying the text information in the target frame and the first two frames thereof;
and combining the expression of the object plane of the person, the action of the person and the object in the target frame, one of the environmental image with the largest change rate with the previous frame, and the text information in the target frame and the first two frames of the target frame as a mark m of the target frame.
6. The video file access method based on cloud storage as claimed in claim 2, wherein the method for adding the key frame m to the segments divided by time nodes is as follows:
and analyzing each frame of the image, setting a content-based mark m, recording a time node corresponding to m as Tm, binding the value with the video and storing the value to a cloud server, and accessing the m part of the fragment part with the highest priority when the mobile terminal accesses the video file.
7. The cloud storage-based video file access method as claimed in claim 1, wherein the specific method for downloading the video file by the mobile terminal is as follows:
the mobile terminal sends a request for downloading a time point video file to the cloud server, and the cloud server sends corresponding fragment data to the mobile terminal after receiving the request;
when the mobile terminal sends a fragment for downloading a plurality of continuous video files to the cloud server, the cloud server executes a merging command, generates a complete video file and sends the complete video file to the mobile terminal;
when the mobile terminal needs to download the fragments of the plurality of discontinuous video files, the cloud server sequentially sends the fragments of the plurality of discontinuous video files to the mobile terminal according to the priority order.
8. The video file access system based on cloud storage is characterized by comprising a mobile terminal, a cloud server and an application module, wherein the mobile terminal is connected with the cloud server, the application module is respectively connected with the cloud server of the mobile terminal, and the application module executes the method of one of claims 1-7 to control video file access between the mobile terminal and the cloud server.
9. The cloud storage-based video file access system of claim 8, further comprising a wireless communication module, wherein the mobile terminal, the cloud server and the application module are connected through the wireless communication module.
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