CN105760486A - Method and device for managing video files - Google Patents
Method and device for managing video files Download PDFInfo
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- CN105760486A CN105760486A CN201610089387.1A CN201610089387A CN105760486A CN 105760486 A CN105760486 A CN 105760486A CN 201610089387 A CN201610089387 A CN 201610089387A CN 105760486 A CN105760486 A CN 105760486A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
Abstract
The invention belongs to the technical field of security and protection equipment and provides a method and device for managing video files. The management method comprises the steps of establishing an embedded database and managing the video files through the embedded database, wherein the embedded database comprises database tables used for recording attribute information corresponding to the video files. By means of the method and device, maintainability and extensibility of the video files are improved, a user can conduct viewing, modifying and other operation conveniently, and the efficiency of managing the video files is effectively improved.
Description
Technical field
The invention belongs to security device technical field, particularly relate to management method and the device of a kind of video file.
Background technology
Existing web camera is generally adopted SD card or other storage devices to store video file, and manages these video files by file management system.Need in the process that program is run, carry out being stored in of video file, read, the operation such as status modifier or unloading, code often employs substantial amounts of sort algorithm, lookup algorithm, state machine algorithms etc..If during the enormous amount of video file, the logic of file management system is complicated, it is easy to go wrong, and autgmentability is poor, is not easy to the function that increase is new.Owing to code is too fat to move, too increase the maintenance cost in later stage.In sum, the way to manage efficiency of video file of the prior art is low.
Summary of the invention
In consideration of it, the embodiment of the present invention provides management method and the device of a kind of video file, to improve the efficiency of management to video file, reduce maintenance cost.
First aspect, it is provided that the management method of a kind of video file, described management method includes:
Building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file；
By described embedded data library management video file.
Second aspect, it is provided that the managing device of a kind of video file, described managing device includes:
Building module, be used for building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file；
Management module, for by described embedded data library management video file.
Compared with prior art, the embodiment of the present invention constructs the embedded database of correspondence for video file, and described embedded database includes the database table for recording attribute information corresponding to video file；By described embedded data library management video file；Owing to embedded database is to use the written in code simplified, few relative to the size of code of file management system, thus improve maintainability and the extensibility of video file, facilitating user and carrying out checking and the operation such as amendment, being effectively improved the efficiency of management to video file.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the flowchart of the management method of the video file that the embodiment of the present invention provides；
Fig. 2 be the embodiment of the present invention provide video file management method in step S101 implement flow chart；
Fig. 3 is the flowchart being created video file by embedded database that the embodiment of the present invention provides；
Fig. 4 is the flowchart being uploaded video file by embedded database that the embodiment of the present invention provides；
Fig. 5 is the composition structure chart of the managing device of the video file that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention constructs the embedded database of correspondence for video file, and described embedded database includes the database table for recording attribute information corresponding to video file；By described embedded data library management video file；Owing to embedded database is to use the written in code simplified, few relative to the size of code of file management system, thus improve maintainability and the extensibility of video file, facilitating user and carrying out checking and the operation such as amendment, being effectively improved the efficiency of management to video file.The embodiment of the present invention additionally provides corresponding managing device, is described in detail individually below.
What Fig. 1 illustrated the management method of the video file that the embodiment of the present invention provides realizes flow process.
In embodiments of the present invention, described management method is applied to carry out the embedded device of video file management, such as web camera.
Consulting Fig. 1, described management method includes:
In step S101, building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file.
In embodiments of the present invention, described embedded database is used for managing in embedded device stored video file, and therefore, pre-defined database table is for recording the attribute information that video file is corresponding.Alternatively, the list item of described database table includes major key key_id and the project for recording attribute information corresponding to video file；Wherein, described project includes establishment time time_seconds, the index information file_index of video file, the status information status of video file, the subordinate code stream dual_stream_id of video file, the device identification device_id of the filename file_name of video file, video file, and described device identification device_id is the mark of the equipment producing video file.Table 1 illustrates the list item composition in the database table that the embodiment of the present invention provides.
| Title | Type | Explanation |
| key_id | INTEGER PRIMARY KEY NOT NULL | The major key of database table |
| file_name | TEXT NOT NULL | The filename of video file |
| time_seconds | INTEGER NOT NULL | The establishment time of video file |
| file_index | INTEGER NOT NULL | The index information of video file |
| device_id | TEXT NOT NULL | Produce the device identification of video file |
| status | INTEGER NOT NULL | The status information of video file |
| dual_stream_id | INTEGER NOT NULL | The subordinate code stream of video file |
Table 1
As a preferred exemplary of the present invention, Fig. 2 illustrates that step S101's in the management method of the video file that the embodiment of the present invention provides implements flow process.
Consulting Fig. 2, described step S101 includes:
In step s 201, create and open embedded database, obtaining the file handle that described embedded database returns.
In step S202, creation mode is set to persist pattern, and uses described file handle to create database table.
Here, owing to one file of embedded device delete and truncate is higher than the cost covering this document, therefore, the embodiment of the present invention is persist pattern by arranging creation mode, make embedded device create database table according to the mode of reduced code, and do not create database table according to the establishment mode of PC.Exemplarily, what the described file handle of use given below created database table realizes example:
CREATETABLERECORD(key_idINTEGERPRIMARYKEYNOTNULL,file_nameTEXTNOTNULL,time_secondsINTEGERNOTNULL,file_indexINTEGERNOTNULL,device_idTEXTNOTNULL,statusINTEGERNOTNULL,dual_stream_idINTEGERNOTNULL)；
In step S203, after building database form, close described file handle.
After database table has been set up, then close described file handle, so far, complete the structure of embedded database.
The embodiment of the present invention is by building embedded database and definition database table for storing the attribute information that video file is corresponding for video file, owing to embedded database uses the written in code simplified, few relative to the size of code of file management system, logic is simple and efficient, thus improve maintainability and the extensibility of video file, facilitate user to carry out checking and the operation such as amendment, be effectively improved the efficiency of management to a large amount of video files, advantageously reduce maintenance cost.
In step s 102, by described embedded data library management video file.
In embodiments of the present invention, store up, by described embedded database, the video file that embedded device produces, and manage described video file.Wherein, management includes using described embedded database to create, deletes, inquires about video file and uploaded onto the server by video file.
As a preferred exemplary of the present invention, described included by described embedded data library management video file: create video file by described embedded database.What Fig. 3 illustrated that the embodiment of the present invention provides realizes flow process by what embedded database created video file.
Consulting Fig. 3, the flow process that realizes of described establishment video file includes:
In step S301, before creating video file, if current lack of memory capacity, then obtain the video file created the earliest according to the establishment time in described database table, delete the attribute information that in described video file and described database table, this video file is corresponding.
The embodiment of the present invention, before creating video file, first obtains the current storage capacity of embedded device, it is judged that whether described memory capacity meets preset capacity threshold value, to determine that whether current memory capacity is enough.If lack of memory capacity, then database table is checked, establishment time video file the earliest is obtained by the time time_seconds that creates in database table, delete the attribute information that in described video file and described database table, this video file is corresponding, to vacate enough memory capacity to create new video file, it is ensured that the content of the video file created is complete.
In step s 302, from described database table, obtain the video file that status information is the first status indicator, delete the attribute information that in described video file and described database table, this video file is corresponding.
In embodiments of the present invention, each video file has the status indicator of correspondence, and when the content of described video file is imperfect, the value on status indicator status is the first status indicator.Therefore, described first status indicator represents that the content of video file is imperfect.In actual applications, described first status indicator could be arranged to INIT.If current memory capacity is enough, determine whether the incomplete video file of content according to the status information status in described database table, namely judge whether the video file that status information status is INIT.Here, the incomplete video file of content includes: 1, terminate the video file created in the establishment process of video file due to embedded device power down, this type of video file does not meet file format, not being the video file of a content intact, in data form, the status information status of its correspondence is set to the first status indicator；2, after video file has created, if the file management system disappearance of software self or SD card, the video file created does not meet file format, is not the video file of a content intact, and in data form, the status information status of its correspondence is set to the first status indicator.For the incomplete video file of content, from embedded database, delete described video file and from described database table, delete the attribute information corresponding with this video file.Exemplarily, the attribute information of deletion video file given below and correspondence thereof realize example:
SELECTfile_namefromRecordFilesWHEREstatus=INIT
DELETEFROMRecordFilesWHEREstatus=INIT
In step S303, described embedded database creates video file, the image information collected is written in the video file created, and in described database table, records the attribute information that described video file is corresponding.
After by step S301 and S302 embedded database being checked, creating video file (such as file video.mp4 by name) in described embedded database, the image information collected by embedded device is written in the video file created.In database table, increase a record, the attribute information corresponding to record the video file created simultaneously.Given below in database table, increase attribute information corresponding to video file realize example:
INSERTINTORECORDVALUES
(key_id,file_name,time_seconds,file_index,device_id,status,dual_s
tream_id)
Exemplarily, in actual applications, when embedded device shoots after powering on, main bit stream passage and sub-code circulation road all can produce multiple video file at regular intervals.For the ease of explanation, it is assumed here that video time is spaced apart 10 seconds.If recording a video 20 seconds, then image information is write to first video file by main bit stream passage in 0-10 time period second, in the time period of 11-20 second, image information is write to second video file, image information is write to the 3rd video file by sub-code circulation road in 0-10 time period second, in the time period of 11-20 second, image information is write to the 4th video file, now, database table adds 4 attribute informations corresponding to video file altogether.Wherein, in the ablation process of image information, the status information status that described video file is corresponding in database table is set to the first status indicator, and namely content is imperfect.After video file has created, the status information status that described video file is corresponding in database table is set to the second status indicator, i.e. content intact.
By above-mentioned steps S301 to step S303, it is achieved that use embedded database to create, delete video file, be effectively improved the stability of embedded device system；Before creating video file, embedded database can be automatically deleted the incomplete video file of content, eliminates abnormal video file, effectively improves the safety of embedded device system every time.
Alternatively, described also included by described embedded data library management video file: by described embedded data bank searching video file.Particularly as follows:
Obtain the keyword message of user's input, according to the attribute information of record in described database table, obtain the video file mated with described keyword message.
The embodiment of the present invention by increasing the attribute information that the video file created is corresponding in database table, the system logic making embedded device becomes simple, efficient, just can complete the inquiry according to video files such as time, resolution, status informations without passing through complicated logic, improve the efficiency of management of video file.
Further, as another preferred exemplary of the present invention, described also included by described embedded data library management video file: upload video file by described embedded database.What Fig. 4 illustrated that the embodiment of the present invention provides realizes flow process by what embedded database uploaded video file.
Consulting Fig. 4, the flow process that realizes uploading video file includes:
In step S401, inquire about the database table in described embedded database.
In step S402, the video file that status information is the first status indicator is obtained from described database table, deleting the attribute information that in described video file and described database table, this video file is corresponding, wherein, described first status indicator represents that the content of video file is imperfect.
In step S403, the video file that status information is third state mark is obtained from described database table, the status information of described video file is revised as the second status indicator, and continue to upload onto the server this video file, wherein, described third state mark represents that video file is in crossing, and described second status indicator represents the content intact of video file.
In embodiments of the present invention, when uploading video file, first inquire about embedded database every time, obtain status information status and be set to the video file of the first status indicator, obtain the incomplete video file of content, and the attribute information of this video file and correspondence thereof is deleted.Obtaining status information and be set to the video file of third state mark, obtain last bust this or the video file checked and verify, the status information status revising described video file is the second status indicator, and continues to upload onto the server described video file.
In step s 404, obtaining status information from described database table is the second status indicator and establishment time video file the latest, the status information of described video file is revised as third state mark, and is uploaded onto the server by described video file；After uploading end, the status information of described video file being revised as the 4th status indicator, described 4th status indicator represents that video file is uploaded.
Here, video file the latest of described establishment time refers to the video file being newly created.By inquiring about embedded database before uploading; it is automatically deleted the incomplete video file of content and continues to upload the last video file do not uploaded; prevent the video file that the unexpected power down of embedded device causes extremely or to lose, effectively improve the safety of embedded device system.Alternatively, in actual applications, described first status indicator can be INIT, and described second status indicator can be GENERATED, and described third state mark can be UPLOADING, and described 4th status indicator can be UPLOADED.
The embodiment of the present invention constructs the embedded database of correspondence for video file, and described embedded database includes the database table for recording attribute information corresponding to video file；By described embedded data library management video file；Owing to embedded database is to use the written in code simplified, few relative to the size of code of file management system, thus improve maintainability and the extensibility of video file, facilitating user and carrying out checking and the operation such as amendment, being effectively improved the efficiency of management to video file.
Fig. 5 illustrates the composition structure of the managing device of the video file that the embodiment of the present invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention.
In embodiments of the present invention, described managing device is for realizing the management method of the video file according to any one of above-mentioned Fig. 1 to Fig. 4 embodiment, it is possible to be the unit being built in the software unit of embedded device, hardware cell or software and hardware combining.Described embedded device includes but not limited to web camera.
Consulting Fig. 5, the managing device of described video file includes:
Building module 51, be used for building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file.
Management module 52, for by described embedded data library management video file.
Further, described structure module 51 includes:
Acquiring unit 511, is used for creating and opening embedded database, obtains the file handle that described embedded database returns.
Database table creating unit 512, for creation mode is set to persist pattern, and uses described file handle building database form.
Closing unit 513, for, after building database form, closing described file handle.
Wherein, the list item in described database table include major key key_id, for recording the project of attribute information corresponding to video file；Described project includes establishment time time_seconds, the index information file_index of video file, the status information status of video file, the subordinate code stream dual_stream_id of video file, the device identification device_id of the filename file_name of video file, video file.
Further, described management module 52 includes video file establishment submodule 521, video file inquires about submodule 522, video file uploads submodule 523.
Described video file creates submodule 521 and specifically includes:
First deletes unit, for before creating video file, if current lack of memory capacity, then obtain the video file created the earliest according to the establishment time in described database table, delete the attribute information that in described video file and described database table, this video file is corresponding；
Second deletes unit, for obtaining the video file that status information is the first status indicator from described database table, deleting the attribute information that in described video file and described database table, this video file is corresponding, described first status indicator represents that the content of video file is imperfect；
Video file creating unit, for creating video file in described embedded database, is written to the image information collected in the video file created, and records the attribute information that described video file is corresponding in described database table.
Further, described video file inquiry submodule 522 specifically also includes:
Video file query unit, for obtaining the keyword message of user's input, according to the attribute information of record in described database table, obtains the video file mated with described keyword message.
The embodiment of the present invention by increasing the attribute information that the video file created is corresponding in database table, the system logic making embedded device becomes simple, efficient, the inquiry according to video files such as time, resolution, status informations just can be completed without passing through complicated logic, improve the efficiency of management of video file, advantageously reduce maintenance cost.
Further, described video file is uploaded submodule 53 and is specifically also included:
Query unit, for inquiring about the database table in described embedded database.
3rd deletes unit, for obtaining the video file that status information is the first status indicator from described database table, deleting the attribute information that in described video file and described database table, this video file is corresponding, wherein, described first status indicator represents that the content of video file is imperfect.
First uploading unit, for obtaining the video file that status information is third state mark from described database table, the status information of described video file is revised as the second status indicator, and continue to upload onto the server this video file, wherein, described third state mark represents that video file is in crossing, and described second status indicator represents the content intact of video file.
Second uploading unit, is the second status indicator and establishment time video file the latest for obtaining status information from described database table, the status information of described video file is revised as third state mark, and is uploaded onto the server by described video file；After uploading end, the status information of described video file being revised as the 4th status indicator, described 4th status indicator represents that video file is uploaded.
The embodiment of the present invention by inquiring about embedded database before uploading video file; it is automatically deleted the incomplete video file of content and continues to upload the last video file do not uploaded; prevent the video file that unexpected power down causes extremely or to lose, effectively improve the safety of embedded device system.
It should be noted that, device in the embodiment of the present invention may be used for the whole technical schemes realizing in said method embodiment, the function of its each functional module can implement according to the method in said method embodiment, it implements the associated description that process can refer in examples detailed above, repeats no more herein.
The embodiment of the present invention constructs the embedded database of correspondence for video file, and described embedded database includes the database table for recording attribute information corresponding to video file；By described embedded data library management video file；Owing to embedded database is to use the written in code simplified, few relative to the size of code of file management system, thus improve maintainability and the extensibility of video file, facilitating user and carrying out checking and the operation such as amendment, being effectively improved the efficiency of management to video file.
Those of ordinary skill in the art are it is to be appreciated that the unit of each example that describes in conjunction with the embodiments described herein and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel specifically can should be used for using different methods to realize described function to each, but this realization is it is not considered that beyond the scope of this invention.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, and the device of foregoing description and the specific works process of unit, it is possible to reference to the corresponding process in preceding method embodiment, do not repeat them here.
In several embodiments provided herein, it should be understood that the management method of disclosed video file and device, it is possible to realize by another way.Such as, device embodiment described above is merely schematic, such as, described module, unit division, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit, module in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit, module are individually physically present, it is also possible to two or more unit, module are integrated in a unit.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium.Based on such understanding, part or the part of this technical scheme that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (10)
1. the management method of a video file, it is characterised in that described management method includes:
Building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file；
By described embedded data library management video file.
2. the management method of video file as claimed in claim 1, it is characterised in that described structure embedded database includes:
Create and open embedded database, obtaining the file handle that described embedded database returns；
Creation mode is set to persist pattern, and uses described file handle building database form；
After building database form, close described file handle；
Wherein, the list item in described database table include major key key_id, for recording the project of attribute information corresponding to video file；Described project includes the filename of video file, the establishment time of video file, the index information of video file, the status information of video file, the subordinate code stream of video file, device identification.
3. the management method of video file as claimed in claim 2, it is characterised in that described included by described embedded data library management video file:
Before creating video file, if current lack of memory capacity, then obtain the video file created the earliest according to the establishment time in described database table, delete the attribute information that in described video file and described database table, this video file is corresponding；
Obtaining the video file that status information is the first status indicator from described database table, delete the attribute information that in described video file and described database table, this video file is corresponding, described first status indicator represents that the content of video file is imperfect；
Described embedded database creates video file, the image information collected is written in the video file created, and in described database table, records the attribute information that described video file is corresponding.
4. the management method of as claimed in claim 2 or claim 3 video file, it is characterised in that described also included by described embedded data library management video file:
Obtain the keyword message of user's input, according to the attribute information of record in described database table, obtain the video file mated with described keyword message.
5. the management method of as claimed in claim 2 or claim 3 video file, it is characterised in that described also included by described embedded data library management video file:
Inquire about the database table in described embedded database；
The video file that status information is the first status indicator is obtained from described database table, delete the attribute information that in described video file and described database table, this video file is corresponding, wherein, described first status indicator represents that the content of video file is imperfect；
The video file that status information is third state mark is obtained from described database table, the status information of described video file is revised as the second status indicator, and continue to upload onto the server this video file, wherein, described third state mark represents that video file is in crossing, and described second status indicator represents the content intact of video file；
Obtaining status information from described database table is the second status indicator and establishment time video file the latest, the status information of described video file is revised as third state mark, and is uploaded onto the server by described video file；After uploading end, the status information of described video file being revised as the 4th status indicator, described 4th status indicator represents that video file is uploaded.
6. the managing device of a video file, it is characterised in that described managing device includes:
Building module, be used for building embedded database, described embedded database includes the database table for recording attribute information corresponding to video file；
Management module, for by described embedded data library management video file.
7. the managing device of video file as claimed in claim 6, it is characterised in that described structure module includes:
Acquiring unit, is used for creating and opening embedded database, obtains the file handle that described embedded database returns；
Database table creating unit, for creation mode is set to persist pattern, and uses described file handle building database form；
Closing unit, for, after building database form, closing described file handle；
Wherein, the list item in described database table include major key key_id, for recording the project of attribute information corresponding to video file；Described project includes the filename of video file, the establishment time of video file, the index information of video file, the status information of video file, the subordinate code stream of video file, device identification.
8. the managing device of video file as claimed in claim 7, it is characterised in that described management module includes:
First deletes unit, for before creating video file, if current lack of memory capacity, then obtain the video file created the earliest according to the establishment time in described database table, delete the attribute information that in described video file and described database table, this video file is corresponding；
Second deletes unit, for obtaining the video file that status information is the first status indicator from described database table, deleting the attribute information that in described video file and described database table, this video file is corresponding, described first status indicator represents that the content of video file is imperfect；
Video file creating unit, for creating video file in described embedded database, is written to the image information collected in the video file created, and records the attribute information that described video file is corresponding in described database table.
9. the managing device of video file as claimed in claim 7 or 8, it is characterised in that described management module also includes:
Video file query unit, for obtaining the keyword message of user's input, according to the attribute information of record in described database table, obtains the video file mated with described keyword message.
10. the managing device of video file as claimed in claim 7 or 8, it is characterised in that described management module also includes:
Query unit, for inquiring about the database table in described embedded database；
3rd deletes unit, for obtaining the video file that status information is the first status indicator from described database table, deleting the attribute information that in described video file and described database table, this video file is corresponding, wherein, described first status indicator represents that the content of video file is imperfect；
First uploading unit, for obtaining the video file that status information is third state mark from described database table, the status information of described video file is revised as the second status indicator, and continue to upload onto the server this video file, wherein, described third state mark represents that video file is in crossing, and described second status indicator represents the content intact of video file；
Second uploading unit, is the second status indicator and establishment time video file the latest for obtaining status information from described database table, the status information of described video file is revised as third state mark, and is uploaded onto the server by described video file；After uploading end, the status information of described video file being revised as the 4th status indicator, described 4th status indicator represents that video file is uploaded.
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| CN109982016A (en) * | 2017-12-28 | 2019-07-05 | 深圳Tcl数字技术有限公司 | A kind of recorded file methods of exhibiting, device and storage medium |
| WO2019201349A1 (en) * | 2018-04-20 | 2019-10-24 | 青岛海信电器股份有限公司 | Electronic device and program list generation method |
| CN111858515A (en) * | 2020-08-03 | 2020-10-30 | 中消云（北京）物联网科技研究院有限公司 | File management method and device |
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