CN112346616B - Method and device for realizing dynamic icons of video files - Google Patents
Method and device for realizing dynamic icons of video files Download PDFInfo
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- CN112346616B CN112346616B CN202011236511.5A CN202011236511A CN112346616B CN 112346616 B CN112346616 B CN 112346616B CN 202011236511 A CN202011236511 A CN 202011236511A CN 112346616 B CN112346616 B CN 112346616B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04817—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
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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
- G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
- G06F16/73—Querying
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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
- G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
- G06F16/73—Querying
- G06F16/738—Presentation of query results
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
Abstract
The invention discloses a method and a device for realizing dynamic icons of a video file, wherein the method comprises the following steps: step S1, the resource manager is monitored to determine whether there is a video file in the currently opened file list, and when it is determined that there is a video file, the method goes to step S2; step S2, for any monitored video file, receiving an icon request for obtaining thumbnail data of the video file, obtaining a previous icon request result in a file icon history database according to the icon request, determining and obtaining video picture data to be currently displayed according to the previous icon request result, and outputting the video picture data as a thumbnail to display a file icon of the video file, where the file icon history database is used to record the video picture data that is displayed last time for each video file.
Description
Technical Field
The invention relates to the technical field of file icon display, in particular to a method and a device for realizing dynamic icons of video files in a windows system.
Background
With the continuous development of storage technology, the number of files stored in a user computer is increased, so that the difficulty of searching for the files required by the user is increased, and the file content is difficult to distinguish only by a file naming rule. Particularly, a large number of picture files and video files are stored in some special industries, and the specific contents of the files can be known after the files are checked, so that the time and labor are wasted, and the operation is very troublesome.
In the above, the information of the file displayed in the general system only includes the file name, the modification time, the file icon and other one-sided information, but these functions have been far from meeting the current use requirements. For example, some companies related to picture design need to find a picture needed by themselves in a large pile of picture files, and the picture needed by themselves can be quickly found through the file icon thumbnail function of the system. However, if a company related to video production needs to quickly find a video file that is desired by the company, it is difficult to quickly find the video file, and although a general video file also has a static thumbnail, the thumbnail is difficult to distinguish, as shown in fig. 1, it is often necessary to click a video file and see a section of the video file to know whether the video file is desired by the company or not, which is very inconvenient for users.
Disclosure of Invention
In order to overcome the defects in the prior art, the present invention provides a method and an apparatus for implementing dynamic icons for video files, so as to display the content of a video file in detail through an icon, thereby facilitating a user to search for a target video file.
In order to achieve the above object, the present invention provides a method for implementing a dynamic icon in a video file, including:
step S1, the resource manager is monitored to monitor whether the current opened file list has video files, and when the video files are monitored, the step S2 is executed;
step S2, for any monitored video file, receiving an icon request for obtaining thumbnail data of the video file, obtaining a previous icon request result in a file icon history database according to the icon request, determining and obtaining video picture data to be currently displayed according to the previous icon request result, and outputting the video picture data as a thumbnail to display a file icon of the video file, where the file icon history database is used to record the video picture data that is displayed last time for each video file.
Preferably, in step S1, the real-time monitoring resource manager monitors whether there is a video file in the currently opened file list in real time, and when the video file is monitored, the real-time monitoring resource manager periodically proceeds to step S2 to periodically and forcibly refresh the file icon of the video file.
Preferably, in step S1, when the video file is monitored, the control timing proceeds to step S2 with a frequency of 12-25 Hz.
Preferably, in step S2, when the icon request of the video file is received, the file icon history database is searched according to the file path of the video file in the icon request, the position of the video picture data displayed when the video file request icon is last time is queried, the current video picture data is obtained and returned according to the query result, and the record of the current video file in the file icon history database is modified.
Preferably, in step S2, the next frame of picture data of the video picture data from the last time the video file request icon was obtained and returned, and the frame field is modified to the current frame number in the file icon history database.
Preferably, if the video picture returned this time is the last frame, the frame field in the file icon history database is modified to be 0.
Preferably, if no corresponding record is found in the file icon history database according to the file path, a record corresponding to the video file is inserted into the file icon history database, and the first frame of picture data of the video file is returned.
Preferably, the video files include video files with suffix names MP4, WMV, RM, RMVB, 3GP, MOV, M4V, and the like.
Preferably, the method is applied to windows systems.
In order to achieve the above object, the present invention further provides a device for implementing dynamic icons in a video file, including:
the monitoring unit is used for monitoring the resource manager, monitoring whether a video file exists in the currently opened file list or not, and starting the thumbnail to acquire and update the unit when the video file is monitored;
the thumbnail acquiring and updating unit is used for receiving an icon request for acquiring thumbnail data of a video file for any monitored video file when the video file is monitored, acquiring a last icon request result in a file icon historical record database according to the icon request, determining and acquiring video picture data to be displayed currently according to the last icon request result, and displaying and outputting a file icon of the video file by using a thumbnail, wherein the file icon historical record database is used for recording the video picture data displayed last time of each video file.
Compared with the prior art, the method and the device for realizing the dynamic icons of the video files monitor whether the video files exist in the currently opened file list or not through the real-time monitoring resource manager, when the video files exist, an icon request for acquiring the thumbnail data of the video files is received for any video file which is monitored at regular time, the last icon request result is acquired in a file icon historical record database according to the icon request, the video picture data which is currently required to be displayed is determined and acquired according to the last icon request result, and the video picture data is displayed and output by the file icons of the video files through the thumbnails, so that the content information of the video files can be displayed more intuitively, the content of the video files can be displayed in detail through the icons, a user can conveniently search the target video files, and the characteristic of visual residual of human eyes is utilized, through a method of continuously refreshing the video file icons, the originally static video file icons are changed into smooth dynamic icons.
Drawings
FIG. 1 is a diagram illustrating a situation in which different video file thumbnails cannot be distinguished in the prior art;
FIG. 2 is a flowchart illustrating steps of a method for implementing dynamic icons for video files according to the present invention;
FIG. 3 is a system architecture diagram of an apparatus for implementing dynamic icons in a video file according to the present invention;
FIG. 4 is a flowchart illustrating a method for implementing dynamic icons for video files according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a file icon display of a video file according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a result of forced refreshing of a file icon of a video file according to an embodiment of the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
Fig. 2 is a flowchart illustrating steps of a method for implementing dynamic icons in a video file according to the present invention. As shown in fig. 2, a method for implementing a dynamic icon in a video file of the present invention includes:
step S1, the monitoring resource manager monitors whether there is a video file in the currently opened file list, and when it is monitored that there is a video file, the process goes to step S2.
In an embodiment of the present invention, the method for implementing a dynamic icon in a video file of the present invention may be applied to a windows system, that is, monitoring a windows resource manager in real time, and monitoring whether there is a video file in a file list currently opened by the windows resource manager in real time, where the video file includes, but is not limited to, video files with suffix names MP4, WMV, RM, RMVB, 3GP, MOV, M4V, and the like.
Step S2, when a video file is monitored, an icon request for acquiring thumbnail data of the video file is received for any monitored video file, the icon request at least comprises a file path, a file name and the like of the video file, a last icon request result is acquired in a file icon historical record database according to the request, video picture data to be displayed at present is determined and acquired according to the last icon request result, and the thumbnail is used for displaying and outputting the file icon of the video file.
Specifically, in the present invention, the file icon history database is used to store the video picture data displayed last time of each video file, and includes at least ID, file path file _ path, frame number frame, and last time last _ time, as shown in table 1 below:
TABLE 1
| ld | file_path | fame | last_time |
| 0 | D：/a.mp4 | 1 | 1603268940013 |
| 1 | D：/b.wmv | 12 | 1603268940099 |
| 2 | D：/c.avi | 24 | 1603268941199 |
When an icon request of a video file is received, searching a file icon history database according to a file path of the video file in the icon request, inquiring the video file request icon at the last time (namely, the latest time), wherein the video file request icon is displayed at the next frame, for example, the 10 th frame is displayed at the last time according to the inquiry result, returning the 11 th frame of video picture data as a thumbnail at the current time, and modifying a frame field in a record table of the file icon history database to be 11, if the returned video picture is the last frame, modifying the frame field in the record table of the file icon history database to be 0, and indicating that the next time needs to start from the beginning of the first frame picture; if no corresponding record is found in the file icon history database according to the file path, which indicates that the icon of the video file is obtained for the first time, a record corresponding to the video file needs to be inserted into the file icon history database, for example, file _ path ═ d: mp4, frame 1, and then return the first frame picture data of the video file.
Because the system generally only acquires the thumbnail image once when displaying, in order to implement dynamic change, in step S1, the resource manager needs to be monitored in real time to monitor whether there is a video file in the currently opened file list, when a video file is monitored, the process enters step S2 regularly to forcedly refresh the file icon once, that is, the windows resource manager program video organization is monitored in real time by a monitoring program to monitor whether there is a video file in the currently opened file list in real time, if so, step S2 is regularly executed to acquire a new video picture and forcedly refresh the file icon once.
Preferably, in order to smoothly play the video, the timing refresh must be performed with a fixed frequency, and in an embodiment of the present invention, the frequency is 12-25 frame rate, that is, 12-25 pictures are replaced per second, so that the dynamic icon of the video file can be smoothly played.
Fig. 3 is a system architecture diagram of an apparatus for implementing dynamic icons in a video file according to the present invention. As shown in fig. 3, an apparatus for implementing a dynamic icon in a video file according to the present invention includes:
the monitoring unit 301 monitors the resource manager, monitors whether a video file exists in the currently opened file list, and starts the thumbnail obtaining and updating unit 302 when the video file exists.
In an embodiment of the present invention, the method for implementing a dynamic icon in a video file of the present invention may be applied to a windows system, that is, monitoring a windows resource manager in real time, and monitoring whether there is a video file in a file list currently opened by the windows resource manager in real time, where the video file includes, but is not limited to, video files with suffix names MP4, WMV, RM, RMVB, 3GP, MOV, M4V, and the like.
The thumbnail acquiring and updating unit 302 is configured to receive an icon request for acquiring thumbnail data of a video file for any monitored video file when the video file is monitored, where the icon request at least includes a file path, a file name, and the like of the video file, acquire a last icon request result from a file icon history database according to the icon request, determine and acquire video picture data to be currently displayed according to the last icon request result, and display and output a file icon of the video file with a thumbnail.
Specifically, in the present invention, the file icon history database is used to store the video picture data displayed last time for each video file, and when the thumbnail acquisition update unit 302 receives an icon request for a video file, then, the file icon history database is searched according to the file path of the video file in the icon request, the video picture data of the next frame is displayed when the video file request icon is queried last time (i.e. the latest time), for example, the last time the query result was to display frame 10, then this time the 11 th frame video picture data is returned as a thumbnail, and modifies the frame field in the history database record table of the file icon to 11, if the video picture returned this time is the last frame, modifying the frame field in the record table of the file icon history record database to be 0, which indicates that the next time the first frame of picture needs to be started from the beginning; if no corresponding record is found in the file icon history database according to the file path, it indicates that the video file icon is obtained for the first time, and a record corresponding to the video file, for example, file _ path ═ d:/a.mp4, frame ═ 1, needs to be inserted into the file icon history database, and then the first frame picture data of the video file is returned.
Since the system generally only acquires the thumbnail once when displaying, in order to implement dynamic change, in the monitoring unit 301, the resource manager needs to be monitored in real time to monitor whether a video file exists in the currently opened file list or not, when the video file is monitored, the thumbnail acquiring and updating unit 302 is started regularly to forcibly refresh the file icon once, that is, the windows resource manager program video editing is monitored in real time through a monitoring program, whether a video file exists in the currently opened file list or not is monitored in real time, if so, the thumbnail acquiring and updating unit 302 is started regularly to acquire a new video picture, and the file icon is forcibly refreshed once.
Preferably, in order to smoothly play the video, the timing refresh must be performed with a fixed frequency, which in the embodiment of the present invention is 12-25Hz, i.e. 12-25 pictures are replaced per second, so that the dynamic icons of the video files can be smoothly played.
Examples
Fig. 4 is a flowchart illustrating a method for implementing a dynamic icon in a video file according to an embodiment of the present invention. In this embodiment, a method for implementing a dynamic icon in a video file is applied to a windows system, and the implementation flow is as follows:
step one, injecting all conventional video files (such as video files with suffix name of MP4, WMV, RM, RMVB, 3GP, MOV, M4V, etc.) into a Com component module (video. dll, a program providing thumbnail) of the windows system through the windows shell extension.
Step two
The windows file explorer needs a thumbnail icon when displaying a certain file, at this time, the system will request the thumbnail data from the video file history database, the video file history database is first searched according to the file path, as the table 1, when the video file request icon is queried, the video picture data of the frame number is displayed, if the query result is that the 10 th frame is displayed last time, the 11 th frame is returned as the thumbnail, the frame field in the file icon history database record is modified to 11, if the current frame is the last frame, the frame field is modified to 0, the next time the frame is started from the first frame video picture, if the icon of the video file is obtained for the first time, the record cannot be found in the database, at this time, a corresponding record needs to be inserted, for example, the file _ path is d:/a.4, the frame is 1, then, the first frame of picture data is returned, for example, fig. 5, and the current frame of video picture data is obtained as thumbnail output display according to file path file _ path ═ d:/b.
Step three, because the system generally only acquires the thumbnail once when displaying, in order to realize dynamic change, a monitoring program is needed to monitor the windows resource manager program video editing.exe in real time, whether a video file exists in the currently opened file list is monitored in real time, if so, the file icon is forcibly refreshed once at regular time, step two is executed every time of refreshing, a new picture is acquired, as shown in fig. 6, and the file icon of each video file is forcibly refreshed at this time.
Step four, in order to smoothly play the video, the timing refresh in step three must adopt a fixed frequency, and a frequency (generally 12-25Hz, that is, 12-25 pictures are replaced per second, although the frame rate that can be displayed is higher when the performance is stronger) is automatically set according to the computer configuration system.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be as set forth in the claims.
Claims (10)
1. A method for realizing dynamic icons by a video file comprises the following steps:
step S1, the resource manager is monitored to determine whether there is a video file in the currently opened file list, and when it is determined that there is a video file, the method goes to step S2;
step S2, for any monitored video file, receiving an icon request for obtaining thumbnail data of the video file, obtaining a previous icon request result in a file icon history database according to the icon request, determining and obtaining video picture data to be currently displayed according to the previous icon request result, and outputting the video picture data as a thumbnail to display a file icon of the video file, where the file icon history database is used to record the video picture data that is displayed last time for each video file.
2. The method for implementing dynamic icons in a video file according to claim 1, wherein: in step S1, the real-time monitoring resource manager monitors whether there is a video file in the currently opened file list in real time, and when the video file is monitored, the real-time monitoring resource manager periodically enters step S2 to periodically and forcibly refresh the file icon of the video file.
3. The method for implementing dynamic icons in a video file as claimed in claim 2, wherein: in step S1, when the video file is monitored, the control proceeds to step S2 with the frequency control timing of 12-25 Hz.
4. The method for implementing dynamic icons in a video file as claimed in claim 2, wherein: in step S2, when the icon request of the video file is received, the file icon history database is searched according to the file path of the video file in the icon request, the position of the video picture data displayed when the video file request icon is last time is queried, the current video picture data is obtained and returned according to the query result, and the record of the current video file in the file icon history database is modified.
5. The method for implementing dynamic icons in a video file as claimed in claim 4, wherein: in step S2, the next frame of picture data of the video picture data of the last video file request icon is obtained and returned, and the frame field in the file icon history database is modified to the current frame number.
6. The method for implementing dynamic icons in a video file as claimed in claim 5, wherein: if the returned video picture is the last frame, the frame field in the file icon history database is modified to be 0.
7. The method for implementing dynamic icons in a video file according to claim 6, wherein: and if the corresponding record is not found in the file icon historical record database according to the file path, inserting a record corresponding to the video file into the file icon historical record database, and returning the first frame of picture data of the video file.
8. The method for implementing dynamic icons in a video file as claimed in claim 1, wherein: the video files include video files with suffix names MP4, WMV, RM, RMVB, 3GP, MOV, M4V.
9. The method for implementing dynamic icons in a video file according to claim 1, wherein: the method is applied to windows systems.
10. An apparatus for implementing dynamic icons for video files, comprising:
the monitoring unit is used for monitoring the resource manager, monitoring whether a video file exists in the currently opened file list or not, and starting the thumbnail to acquire and update the unit when the video file is monitored;
the thumbnail acquiring and updating unit is used for receiving an icon request for acquiring thumbnail data of a video file for any monitored video file when the video file is monitored, acquiring a last icon request result in a file icon historical record database according to the icon request, determining and acquiring video picture data to be displayed currently according to the last icon request result, and displaying and outputting a file icon of the video file by using a thumbnail, wherein the file icon historical record database is used for recording the video picture data displayed last time of each video file.
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