CN111083552A - Thumbnail generation method, device, equipment and medium - Google Patents
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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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440245—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4438—Window management, e.g. event handling following interaction with the user interface
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Abstract
The invention discloses a thumbnail generation method, a thumbnail generation device, equipment and a thumbnail generation medium. Wherein the method comprises the following steps: on a video display page, if the video sliding stopping operation is detected, determining a target video according to the stopping position of a page window; determining thumbnails of the target videos in sequence by adopting a preset rule; and displaying the thumbnail as a cover picture of the target video in a video display page. According to the technical scheme, the thumbnail of the current interface is timely provided for the user when the user slides a large amount of videos quickly, and the use experience of the user is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of image processing, in particular to a thumbnail generation method, a thumbnail generation device, thumbnail generation equipment and a thumbnail generation medium.
Background
With the increasing storage space of mobile devices and the rapid development of network technologies, a large number of video files are stored on the mobile device, each video needs to produce a thumbnail of the video, and each video needs time to generate the thumbnail.
Generally, the average time for generating the thumbnail of one video is about 100ms, and a user wants to see the thumbnail of the current video after a large amount of videos in the quick sliding terminal, and needs to wait for the generation of the thumbnail of the video to which the user slides after the generation of the thumbnails of all previous videos is completed, so that the problem of long waiting time exists, and the use experience of the user is influenced.
Disclosure of Invention
The invention provides a thumbnail generation method, a thumbnail generation device, equipment and a medium, which can be used for providing thumbnails of current interfaces for users in time when the users slide a large number of videos quickly, and improving the user experience.
In a first aspect, an embodiment of the present invention provides a thumbnail generation method, including: on a video display page, if the video sliding stopping operation is detected, determining a target video according to the stopping position of a page window;
determining thumbnails of the target videos in sequence by adopting a preset rule;
and displaying the thumbnail as a cover picture of the target video in a video display page.
In a second aspect, an embodiment of the present invention further provides a thumbnail generation apparatus, including:
the target video determining module is used for displaying a page on the video, and determining the target video according to the stop position of a page window if the video sliding stop operation is detected;
the thumbnail generation module is used for sequentially determining thumbnails of the target videos by adopting a preset rule;
and the display module is used for displaying the thumbnail as a cover picture of the target video in a video display page.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a thumbnail generation method according to any one of the embodiments of the present invention.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a thumbnail generation method according to any one of the embodiments of the present invention.
According to the method and the device, when the video sliding stop operation is detected on the video display page, the target video is determined according to the stop position of the page window, the thumbnails of the target video are sequentially determined by adopting a preset rule, the thumbnails are displayed in the video display page as the cover pictures of the target video, and when the video sliding stop operation is detected, the thumbnails are preferentially generated for the target video stopped on the page window, so that the thumbnails of the current interface are timely provided for a user when the user slides a large amount of videos quickly, and the use experience of the user is improved.
Drawings
Fig. 1 is a thumbnail generation method according to an embodiment of the present invention;
fig. 2 is a schematic view of a video display page according to an embodiment of the present invention;
fig. 3 is a thumbnail generation method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a thumbnail generation apparatus according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of thumbnail generation according to an embodiment of the present invention, where the embodiment is applicable to generating a thumbnail for a video, and the method may be executed by a thumbnail generation apparatus, where the apparatus may be implemented in a software and/or hardware manner, and referring to fig. 1, the method specifically includes the following steps:
s110, displaying a page on the video, and if the video sliding stopping operation is detected, determining the target video according to the stopping position of the page window.
The video display page comprises at least one video window file; the user may view different video files by sliding the progress bar of the video presentation page.
In this embodiment, when the video sliding stop operation is detected, the target video is determined according to the stop position of the window page. For example, referring to fig. 2, fig. 2 is a video presentation page, where the video presentation page includes two video windows, and if a current page window includes a video window 1 and a video window 2 when the video sliding stop operation is performed, the video window 1 and the video window 2 included in the current video presentation page are target videos.
And S120, determining the thumbnails of the target videos in sequence by adopting a preset rule.
The thumbnail of the target video is an image which is captured from a certain moment of the target video and is formed by zooming according to the specified size, and is used for displaying the content information of the target video.
If the current video display page contains at least one target video, thumbnail images are sequentially generated for the target videos from the first target video in the current video display page according to the sequencing order of the videos.
Specifically, the preset rule is a rule method for determining the thumbnail from the target video. Optionally, the target video may be segmented according to video scenes, and an image at a certain time is captured from the segmented video with the longest duration as a thumbnail of the target video. For example, an image at the middle moment of the segmented video with the longest duration can be intercepted as a thumbnail of the target video, and the video can better represent the content of the target video and has reference value for a user.
Optionally, the preset rule may also be configured to intercept images at different times according to the duration of the target video, and select an image with the highest resolution from the intercepted images as a thumbnail of the target video.
Further, before generating the thumbnail, the selected image needs to be scaled to a certain extent according to the designated size of the thumbnail to meet the generation requirement of the thumbnail.
S130, displaying the thumbnail as a cover picture of the target video in a video display page.
In this embodiment, after the thumbnail of the target video is generated, the thumbnail is displayed in the video display page as a cover image of the target video, so that the user can roughly know content information of the video through the thumbnails displayed in the video display page without opening the video browsing one by one.
According to the technical scheme, when the video sliding stop operation is detected on the video display page, the target video is determined according to the position where the page window stops, the thumbnails of the target video are sequentially determined according to the preset rule, the thumbnails are displayed in the video display page as cover pictures of the target video, when the video sliding stop operation is detected, the thumbnails are preferentially generated for the target video where the page window stops, when a large number of videos are used for rapidly sliding, the thumbnails of the current interface are timely provided for a user, and the use experience of the user is improved.
Further, on the basis of the foregoing embodiment, after sequentially determining the thumbnails of the target videos by using preset rules, the method further includes:
establishing an incidence relation between a target video and a thumbnail;
and storing the thumbnail into a cache directory according to the association relation, and providing the thumbnail for the target video.
Specifically, after the thumbnail of the target video is generated, the association relationship between the target video and the corresponding generated thumbnail can be established through the unique identification information between the target video and the corresponding generated thumbnail, and then the thumbnail is stored in the cache directory, for example, the thumbnail can be stored in a designated folder of the video playing terminal. According to the method, when the user needs the thumbnail of the video for the second time, the thumbnail of the target video is directly obtained from the storage directory according to the incidence relation between the target video and the thumbnail without being generated again, and therefore the generation efficiency of the thumbnail of the target video is improved.
On the basis of the above embodiment, the method further includes:
if the video sliding stopping operation is detected and the thumbnail of the target video is determined to be generated, determining whether the video sliding through the video display page has a video to be loaded without the generated thumbnail;
if the video exists, generating thumbnails for the videos to be loaded in sequence according to the position relation between the videos to be loaded and the target video.
In this embodiment, if the sliding operation is detected, the generation of the thumbnail of the video is stopped, and the video sliding through the video display page in the sliding operation process has the video to be loaded without the thumbnail generated.
Specifically, if the video sliding stop operation is detected and the thumbnails of the target videos in the current video display page are all generated, the images to be loaded are sequentially loaded from the image to be loaded which is farthest from the target videos, and the thumbnails are generated for the loaded videos.
In the embodiment, the thumbnail is generated asynchronously, that is, the generation operation of the thumbnail is stopped when the video display page slides, when the video sliding stop operation is detected, the thumbnail is generated for the target video of the current page in advance, and after the generation of the target video thumbnail is completed, the thumbnails are sequentially generated for the videos to be loaded which slide in the video display page and have no generated thumbnail, so that the generation of other video thumbnails is ensured on the basis of updating the thumbnail of the current page in time.
Example two
Fig. 3 is a thumbnail generation method provided in the second embodiment of the present invention, and the second embodiment of the present invention further details S120 on the basis of the second embodiment. Referring to fig. 3, the method specifically includes:
s210, displaying a page on the video, and if the video sliding stopping operation is detected, determining the target video according to the stopping position of the page window.
And S220, loading the target video.
In this embodiment, after the target video is determined, the target video is loaded into the memory, so that the subsequently generated thumbnail is saved in the memory for the user to repeatedly use.
S230, at least two frames of video images are intercepted from the target video, and the thumbnail of the target video is determined from the at least two frames of video images.
Specifically, intercepting at least two frames of video images from the target video, and determining a thumbnail of the target video from the at least two frames of video images includes:
intercepting at least two frames of video images from the target video according to the total duration of the target video;
and taking the video image with the largest pixel value in the at least two frames of video images as a thumbnail of the target video.
For example, four images at times 1/5, 2/5, 3/5 and 4/5 of the total duration of the video may be respectively intercepted, and the video image with the largest pixel value among the four images may be taken as a thumbnail of the target video. The larger the pixel value of the image is, the clearer the pixel of the image is, the vivid color can better represent the content information of the video, and an effective reference is provided for the user.
S240, displaying the thumbnail as a cover picture of the target video in a video display page.
According to the technical scheme, the thumbnail generation method is provided by loading the target video, intercepting at least two video images from the target video and determining the thumbnail of the target video from at least two frames of video images.
EXAMPLE III
Fig. 4 is a thumbnail generation apparatus provided in a third embodiment of the present invention, and the thumbnail generation apparatus provided in the third embodiment of the present invention may execute a thumbnail generation method provided in any embodiment of the present invention.
Referring to fig. 4, the apparatus specifically includes:
the target video determining module 310 is configured to, when a video display page is detected, determine a target video according to a stop position of a page window if a video sliding stop operation is detected;
the thumbnail generation module 320 is configured to sequentially determine thumbnails of the target video according to a preset rule;
and the display module 330 is configured to display the thumbnail in a video display page as a cover picture of the target video.
The thumbnail generation module 320 is specifically configured to: loading the target video;
at least two frames of video images are intercepted from the target video, and thumbnails of the target video are determined from the at least two frames of video images.
Further, the thumbnail generation module 320 is further specifically configured to:
intercepting at least two frames of video images from the target video according to the total duration of the target video;
and taking the video image with the largest pixel value in the at least two frames of video images as a thumbnail of the target video.
Optionally, the apparatus further includes an association relationship establishing module and a caching module. The incidence relation establishing module is used for establishing incidence relation between the target video and the thumbnail. And the cache module is used for storing the thumbnail into a cache directory according to the association relation and providing the thumbnail for the target video.
Further, on the basis of the foregoing embodiment, the apparatus further includes a detection module, configured to determine whether there is a video to be loaded in the video that has slid in the video presentation page and has no thumbnail generated, if it is detected that the video sliding stop operation is performed and it is determined that the thumbnail of the target video has been generated.
The thumbnail generation module 320 is further configured to, if the thumbnail exists, sequentially generate thumbnails for the video to be loaded according to the position relationship between the video to be loaded and the target video.
The thumbnail generation device provided by the embodiment of the invention can execute the thumbnail generation method provided by any embodiment of the invention, has the corresponding functional modules and beneficial effects of the execution method, and is not repeated.
Example four
Fig. 5 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present invention. Fig. 5 illustrates a block diagram of an exemplary device 12 suitable for use in implementing embodiments of the present invention. The device 12 shown in fig. 5 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present invention.
As shown in FIG. 5, device 12 is in the form of a general purpose computing device. The components of device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, for example, implementing a thumbnail generation method provided by an embodiment of the present invention.
EXAMPLE five
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement a thumbnail generation method according to any of the above embodiments of the present invention, where the method includes:
on a video display page, if the video sliding stopping operation is detected, determining a target video according to the stopping position of a page window;
determining thumbnails of the target videos in sequence by adopting a preset rule;
and displaying the thumbnail as a cover picture of the target video in a video display page.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A thumbnail generation method, comprising:
on a video display page, if the video sliding stopping operation is detected, determining a target video according to the stopping position of a page window;
determining thumbnails of the target videos in sequence by adopting a preset rule;
and displaying the thumbnail as a cover picture of the target video in a video display page.
2. The method according to claim 1, wherein obtaining at least one frame image of the target video by using a preset rule, and determining the frame image as a thumbnail of the target video comprises:
loading the target video;
at least two frames of video images are intercepted from the target video, and thumbnails of the target video are determined from the at least two frames of video images.
3. The method of claim 2, wherein intercepting at least two video images from the target video and determining a thumbnail of the target video from the at least two video images comprises:
intercepting at least two frames of video images from the target video according to the total duration of the target video;
and taking the video image with the largest pixel value in the at least two frames of video images as a thumbnail of the target video.
4. The method according to claim 1, further comprising, after determining the thumbnails of the target videos in turn by using a preset rule:
establishing an incidence relation between a target video and a thumbnail;
and storing the thumbnail into a cache directory according to the association relation, and providing the thumbnail for the target video.
5. The method of claim 1, further comprising:
if the video sliding stopping operation is detected and the thumbnail of the target video is determined to be generated, determining whether the video sliding through the video display page has a video to be loaded without the generated thumbnail;
if the video exists, generating thumbnails for the videos to be loaded in sequence according to the position relation between the videos to be loaded and the target video.
6. An apparatus for thumbnail generation, comprising:
the target video determining module is used for displaying a page on the video, and determining the target video according to the stop position of a page window if the video sliding stop operation is detected;
the thumbnail generation module is used for sequentially determining thumbnails of the target videos by adopting a preset rule;
and the display module is used for displaying the thumbnail as a cover picture of the target video in a video display page.
7. The apparatus of claim 6, wherein the thumbnail generation module is specifically configured to:
loading the target video;
at least two frames of video images are intercepted from the target video, and thumbnails of the target video are determined from the at least two frames of video images.
8. The apparatus of claim 6, further comprising:
the incidence relation establishing module is used for establishing the incidence relation between the target video and the thumbnail;
and the storage module is used for storing the thumbnail into a cache directory according to the association relation and providing the thumbnail for the target video.
9. An apparatus, characterized in that the apparatus comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a thumbnail generation method in accordance with any of claims 1-5.
10. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing a thumbnail generation method according to any one of claims 1-5.
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| CN112668546A (en) * | 2021-01-13 | 2021-04-16 | 海信视像科技股份有限公司 | Video thumbnail display method and display equipment |
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| CN112668546A (en) * | 2021-01-13 | 2021-04-16 | 海信视像科技股份有限公司 | Video thumbnail display method and display equipment |
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