CN106407310B - Video file processing method and video file processing device - Google Patents

Video file processing method and video file processing device Download PDF

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CN106407310B
CN106407310B CN201610779102.7A CN201610779102A CN106407310B CN 106407310 B CN106407310 B CN 106407310B CN 201610779102 A CN201610779102 A CN 201610779102A CN 106407310 B CN106407310 B CN 106407310B
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video file
identification information
key
feature
video
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CN106407310A (en
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陈曦
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Huawei Technologies Co Ltd
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    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/70Information retrieval; Database structures therefor; File system structures therefor of video data
    • G06F16/78Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G06F16/783Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content

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Abstract

The invention discloses a video file processing method and video file processing equipment, which comprise the following steps: acquiring characteristic identification information of a video file; acquiring key features of the video file according to the feature identification information; and displaying the video file and the key features. According to the embodiment of the invention, the key characteristics of the video file can be acquired through the characteristic identification information of the video file, so that the video file and the key characteristics are displayed, and the user can conveniently, quickly and accurately identify the video file through the specific content of the video file displayed by the key characteristics.

Description

Video file processing method and video file processing device
Technical Field
The invention relates to the technical field of video processing, in particular to a video file processing method and video file processing equipment.
Background
Currently, a plurality of video files such as movies, television shows, short films and the like are full of the internet, and users can obtain the video files in various ways such as network downloading, mobile phone shooting and file copying. A plurality of video files are put into a file management system and are arranged together when being displayed, so that a user cannot quickly obtain the core content of a certain video file.
When a video file is displayed by a thumbnail in a file management system, information such as a first frame of the video and a video file name is displayed. Wherein the first frames of many videos may be the same content, e.g., a public license number of the national central office of radio and television; and the video file name may not accurately represent the video file content.
Therefore, the video file itself cannot be accurately described only by the first frame of the video and the video file name, and the user cannot quickly and accurately identify the video file.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for processing a video file, so as to solve the technical problem that the video file cannot be identified quickly and accurately.
In a first aspect, a video file processing method is provided, including:
acquiring characteristic identification information of a video file;
acquiring key features of the video file according to the feature identification information;
and displaying the video file and the key features.
With reference to the first aspect, in a first possible implementation manner, the obtaining feature identification information of a video file includes:
calculating to obtain the characteristic identification information by adopting a set algorithm according to the video file;
the obtaining of the key features of the video file according to the feature identification information includes: and searching the key features of the video file according to the corresponding relation between the feature identification information and the key features.
With reference to the first aspect, in a second possible implementation manner, the obtaining feature identification information of a video file includes:
extracting the feature identification information from a file header of the video file, wherein the feature identification information is used for indicating the position of the key feature in an extension segment of the video file;
the obtaining of the key features of the video file according to the feature identification information includes:
and extracting key features of the video file from the extended section of the video file indicated by the feature identification information.
With reference to the first aspect and the first or second possible implementation manner of the first aspect, in a third possible implementation manner, the key features of the video file include:
a sequence of key frames and/or frames extracted from the video file; or
Posters and/or trailers obtained from video distributors and/or video auditors; or
And the image-text information related to the video file is set by the user.
In a second aspect, a video file processing device is provided, including:
the acquiring unit is used for acquiring the characteristic identification information of the video file; acquiring key features of the video file according to the feature identification information;
and the display unit is used for displaying the video file and the key features.
With reference to the second aspect, in a first possible implementation manner, the obtaining unit includes:
the calculating subunit is used for calculating to obtain the characteristic identification information by adopting a set algorithm according to the video file;
and the searching subunit is used for searching the key features of the video file according to the corresponding relation between the feature identification information and the key features.
With reference to the second aspect, in a second possible implementation manner, the obtaining unit includes:
a first extraction subunit, configured to extract the feature identification information from a file header of the video file, where the feature identification information is used to indicate a position of the key feature in an extension segment of the video file;
and the second extraction subunit is used for extracting the key features of the video file from the extended segment of the video file indicated by the feature identification information.
With reference to the second aspect and the first or second possible implementation manner of the second aspect, in a third possible implementation manner, the key features of the video file include:
a sequence of key frames and/or frames extracted from the video file; or
Posters and/or trailers obtained from video distributors and/or video auditors; or
And the image-text information related to the video file is set by the user.
According to the video file processing method and the video file processing device, the key features of the video file can be obtained through the feature identification information of the video file, so that the video file and the key features are displayed, and the video file can be conveniently, rapidly and accurately identified by a user through the specific content of the video file displayed through the key features.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the invention and, together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart of a video file processing method according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a video file processing method according to a second embodiment of the present invention;
FIG. 3a is a flowchart of a video file processing method according to a third embodiment of the present invention;
FIGS. 3b and 3c are schematic diagrams illustrating annotations in a video file processing method according to a third embodiment of the present invention;
fig. 3d and fig. 3e are schematic diagrams illustrating display effects of a video file processing method according to a third embodiment of the present invention;
fig. 4 is a block diagram of a video file processing apparatus according to a fourth embodiment of the present invention;
fig. 5 is a block diagram of a video file processing apparatus according to a fifth embodiment of the present invention;
fig. 6 is a block diagram of a video file processing apparatus according to a sixth embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention. While the invention is illustrated and described in connection with these embodiments, it should be understood that the invention is not limited to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Example 1
Fig. 1 is a flowchart of a video file processing method according to a first embodiment of the present invention, as shown in fig. 1, the video file processing method includes:
and step 100, acquiring characteristic identification information of the video file.
The obtaining of the feature identification information of the video file may specifically include the following steps:
in the first mode, the feature identification information such as an MD5 value is calculated by adopting a set algorithm such as an MD5 algorithm according to the video file.
And secondly, extracting the feature identification information from the file header of the video file, wherein the feature identification information is used for indicating the position of the key feature in the extension segment of the video file.
And step 120, acquiring key features of the video file according to the feature identification information.
Referring to the first and second ways of obtaining the feature identifier information of the video file, step 120 may include the following ways:
in the first mode, the key features of the video file are searched according to the corresponding relation between the feature identification information and the key features.
And secondly, extracting the key features of the video file from the extended section of the video file indicated by the feature identification information.
In the embodiment of the present invention, the key features of the video file may specifically include any one or more of the following cases:
case one, a sequence of key frames and/or frames extracted from the video file.
Specifically, the number of key frames extracted from the video file may be one or more, and the number of frame sequences extracted from the video file may also be one or more. The key frames and/or frame sequences are obtained from the video file, and can be extracted by video playing software such as a snapshot, a hundred-degree video, a skin, a storm video and the like, or can be automatically extracted by the video playing software according to preset time such as 1 second, 1 minute and the like, or other methods for obtaining the key frames and/or frame sequences.
Case two, posters and/or promos obtained from video distributors and/or video auditors.
Specifically, in the process of issuing or reviewing a video file, a video issuer or a video reviewer may produce a plurality of contents such as posters and trailers for marking specific contents of the video file, and the posters and/or the trailers obtained from the video issuer or the video reviewer may be used as key features for representing the video file.
And thirdly, the image-text information which is set by the user and is related to the video file.
Specifically, the user may set the graphics and text information of a certain video file according to personal preference, for example: if the user shoots a video file played by a child, graphic and text information such as 'child growth experience' and the like can be set as key features of the video file.
The first, second, and third conditions may be implemented by a network device, such as a server of a certain video website, or may be implemented by a terminal device, such as a mobile phone, a personal computer, and the like.
It should be noted that the embodiment of the present invention does not limit the specific form of the key feature of the video file, and the feature that can identify and distinguish the video file from other video files may be the key feature of the video file.
And step 140, displaying the video file and the key features.
Specifically, after the network device or the terminal device obtains the key features of the video file, the video file and the key features thereof can be displayed on a certain platform such as a website, a mobile phone, an ipad and the like, and a user can quickly identify the video file to be browsed or downloaded from a plurality of video files through the displayed key features and can conveniently browse or download the video file. Accordingly, after downloading the video file, the user can identify the specific content of the video file according to the displayed key features of the video file.
According to the video file processing method, the key features of the video file can be acquired through the feature identification information of the video file, so that the video file and the key features are displayed, and the video file can be conveniently, rapidly and accurately identified by a user through the specific content of the video file displayed through the key features.
Example 2
Fig. 2 is a flowchart of a video file processing method according to a second embodiment of the present invention, and as shown in fig. 2, the video file processing method may include the following steps:
and 200, storing the video file and key characteristics of the video file.
And step 210, calculating to obtain the characteristic identification information of the video file by adopting a set algorithm according to the video file, and storing the characteristic identification information.
Specifically, the network device or the terminal device may employ a setting algorithm, such as the MD5 algorithm, to calculate and derive the feature identification information, such as the MD5 value. The feature identification information can uniquely identify the video file, and correspondingly, the feature identification information and the video file are in a one-to-one correspondence relationship, namely, the feature identification information of different video files is different. In other words, if a plurality of video files are the same, the feature identification information of the plurality of video files calculated by the network device or the terminal device is the same; conversely, if the plurality of video files are different, the network device or the terminal device calculates different feature identification information of the plurality of video files.
Step 220, establishing a corresponding relationship between the feature identification information and the key features, and storing the corresponding relationship.
Specifically, the network device or the terminal device may store the corresponding relationship between the feature identification information and the key feature by using a certain method, for example, the corresponding relationship may be stored in a form of a corresponding relationship table.
And step 230, if a certain video file needs to be displayed, calculating to obtain the characteristic identification information of the video file by adopting a set algorithm according to the video file.
Step 240, according to the feature identification information of the video file, finding the corresponding relationship between the feature identification information and the key feature, and obtaining the key feature of the video file corresponding to the feature identification information.
Specifically, the network device or the terminal device may obtain the key feature from a specific position of the video file according to the correspondence relationship between the feature identification information and the key feature. For example, if the corresponding relationship between the feature identification information and the key feature is stored in a form of a corresponding relationship table, the key feature of the video file corresponding to the feature identification information can be found in a corresponding position of the video file by looking up the table.
Step 250, displaying the thumbnail of the video file comprising the key feature.
Specifically, when the network device or the terminal device displays the video file, the obtained video file and key features thereof may be displayed. The user can accurately identify the specific content of the video file and find the video file required by the user from a plurality of video files through the displayed thumbnail of the video file comprising the key feature.
According to the video file processing method, the key features of the video file can be obtained through the feature identification information of the video file obtained through calculation, so that the video file and the key features are displayed, and the video file can be conveniently, rapidly and accurately identified by a user through the specific content of the video file displayed through the key features.
Example 3
Fig. 3a is a flowchart of a video file processing method according to a third embodiment of the present invention, and as shown in fig. 3a, the video file processing method may include the following steps:
step 310, saving the key features to the extension segment of the video file.
And step 320, carrying feature identification information corresponding to the key feature in a file header of the video file, wherein the feature identification information is used for indicating the position of the key feature in the extension segment of the video file.
The feature identification information corresponding to the key feature may be written in a Reserved (Reserved) field of a file header of the video file, and the position of the extension segment is an offset of the extension segment relative to the video file header.
Fig. 3b and fig. 3c are schematic diagrams illustrating a label in a video file processing method according to a third embodiment of the present invention, as shown in fig. 3b, for some specific formats, for example: video files in MP4 format, MPEG-1 format, MPEG-2 format, RMVB format, etc. have reserved field in the file header, and the characteristic identification information corresponding to the key characteristic may be set in the reserved field. If no field is reserved, feature identification information corresponding to the key feature can be set in other fields of the file header of the video file.
As shown in fig. 3c, taking "taijiong" as an example of the video file in MP4 format, the video file in MP4 format may be composed of a video file header and a video stream, where the video file header includes a reserved field, and the width of the reserved field may be 4 bytes, 6 bytes, 10 bytes, 12 bytes, or the like, or may be other values. In this embodiment, the width of the reserved field is 10 bytes, and the initial value of the reserved field is "0000000000". The present embodiment sets the feature identification information corresponding to the key feature of the video file by modifying the reserved field so that it is not "0", for example, setting the reserved field to "0 x89a 0040000", and after acquiring the key feature of the video file, may write the key feature as one data block in the video file, for example: a separate data block representing this key feature is added to the video file at a location offset "0 x89a 0040000" relative to the video file header and forms the video file "tyong" of MP4 format shown.
Step 330, if a certain video file needs to be displayed, extracting feature identification information from the file header of the video file marked with the key features.
And step 340, extracting key features from the position of the extension segment of the video file indicated by the feature identification information according to the feature identification information.
Step 350, displaying the thumbnail of the video file including the key feature.
Specifically, the network device or the terminal device may extract feature identification information corresponding to a key feature from a file header of a video file, may find a position of the key feature in an extended segment of the video file according to an indication of the feature identification information, find the extended segment from the video file and read the key feature therein, and display the key feature of the video file when a file management system of the device displays a thumbnail of the video file, so that a user may identify specific content of the video file.
For some specific video file types, for example: the MP4 format, the MPEG-1 format, the MPEG-2 format, the RMVB format, etc., or extracting feature identification information corresponding to the key feature from a reserved field of a header of the video file, and reading the key feature from an extension segment of the video file according to an offset of the key feature indicated by the feature identification information between the extension segment of the video file and the header of the video file.
For example: referring to fig. 3c, a reserved field in a file header of a video file "tajiong" in MP4 format may be read first, feature identification information "0 x89a 0040000" is read out from the reserved field, and a key feature of the video file is obtained from a position where an offset between an extension segment of the video file and the video file header is "0 x89a 0040000". As shown in fig. 3d and fig. 3e, which are schematic diagrams of display effects of a video file processing method according to a third embodiment of the present invention, according to key features of a displayed video file, for example: a poster of a video file (Taijiong) or a poster of a video file (western journey), and a user can quickly and accurately identify the video file (Taijiong) and the video file (western journey).
According to the video file processing method, the key features are marked in the video file, the video file marked with the key features is displayed, and when the video file is displayed, the specific content of the video file can be displayed through the key features, so that a user can quickly and accurately identify the video file.
Example 4
Fig. 4 is a block diagram of a video file processing apparatus according to a fourth embodiment of the present invention, and as shown in fig. 4, the video file processing apparatus includes:
an obtaining unit 400, configured to obtain feature identification information of a video file; acquiring key features of the video file according to the feature identification information;
a display unit 420 for displaying the video file and the key features.
The video file processing device in the embodiment of the present invention may be, for example, a network device such as a server of a certain video website, or a terminal device such as a mobile phone or a personal computer, and the video file processing device may execute the video file processing method in the above embodiment. In particular, when a video file is presented using the video file processing apparatus in the embodiment of the present invention, the presented video file may need to be processed. If the key features of the video file acquired by the acquisition unit 400 of the video file processing device, for example, a server of a certain video website, through the feature identification information are, for example: the obtaining unit 400 may mark the above-mentioned key features in a video file, obtain feature identification information from the video file marked with the key features, and obtain the key features according to the feature identification information; or a set algorithm such as the MD5 algorithm may be adopted to calculate feature identification information such as the MD5 value, and obtain the key feature according to the feature identification information. The presentation unit 420 may publish the key features of the video file acquired or found by the acquisition unit 400 to a network device such as a server of a certain video website, and a terminal device such as a mobile phone and a personal computer.
According to the video file processing device, the key features of the video file can be acquired by acquiring the feature identification information of the video file through the acquisition unit, the video file and the key features are displayed through the display unit, and the video file can be conveniently, rapidly and accurately identified by a user through the specific content of the video file displayed through the key features.
Example 5
Fig. 5 is a block diagram of a video file processing apparatus according to a fifth embodiment of the present invention, and as shown in fig. 5, the video file processing apparatus includes:
an obtaining unit 400, configured to obtain feature identification information of a video file; acquiring key features of the video file according to the feature identification information;
a display unit 420 for displaying the video file and the key features.
Wherein, the obtaining unit 400 includes:
and the computing subunit 500 is configured to compute to obtain the feature identification information according to the video file by using a set algorithm.
A searching subunit 520, configured to search the key feature of the video file according to the corresponding relationship between the feature identification information and the key feature.
Specifically, the calculating subunit 500 may calculate feature identification information of the video file, such as an MD5 value, using a setting algorithm, such as an MD5 algorithm, based on the video file and the key feature saved by the video file processing apparatus, and save the feature identification information. The calculating subunit 500 is further configured to establish a corresponding relationship between the feature identification information and the key feature according to the feature identification information, and store the corresponding relationship, for example, the corresponding relationship may be stored in a form of a corresponding relationship table. In the case that a certain video file needs to be displayed, the searching subunit 520 may calculate the feature identification information of the video file according to the video file by using a set algorithm, and according to the calculated feature identification information, search the corresponding relationship between the feature identification information stored by the calculating subunit 500 and the key feature, and obtain the key feature at a specific position of the video file. For example, if the corresponding relationship between the feature identification information and the key feature is stored in a form of a corresponding relationship table, the key feature of the video file corresponding to the feature identification information can be found in a corresponding position of the video file by looking up the table. Presentation unit 420 may present key features of the video file found by lookup subunit 520. For details, reference may be made to the related description in the above second embodiment of the video file processing method.
According to the video file processing device, the searching subunit can obtain the key features of the video file according to the feature identification information of the video file calculated by the calculating subunit, the display unit displays the video file and the key features, and the user can conveniently, quickly and accurately identify the video file according to the specific content of the video file displayed by the key features.
Example 6
Fig. 6 is a block diagram of a video file processing apparatus according to a sixth embodiment of the present invention, and as shown in fig. 6, the video file processing apparatus includes:
an obtaining unit 400, configured to obtain feature identification information of a video file; acquiring key features of the video file according to the feature identification information;
a display unit 420 for displaying the video file and the key features.
Wherein, the obtaining unit 400 includes:
a first extracting subunit 600, configured to extract the feature identification information from the file header of the video file, where the feature identification information is used to indicate a location of the key feature in the extension segment of the video file.
Further, the first extraction subunit 600 is further configured to: storing the key features into an extension segment of the video file; and carrying feature identification information corresponding to the key features in a file header of the video file, wherein the feature identification information is used for indicating the positions of the key features in the extension segment of the video file.
Further, the first extraction subunit 600 is further configured to: and writing feature identification information corresponding to the key features into a reserved field of a file header of the video file, wherein the position of the extension segment is the offset of the extension segment relative to the video file header.
A second extracting sub-unit 620, configured to extract a key feature of the video file from the extended segment of the video file indicated by the feature identification information.
Specifically, when the presentation unit 420 presents the key features of the video file extracted from the video file by the second extraction subunit 620, the first extraction subunit 600 may extract the feature identification information from the file header of the video file labeled with the key features, or the first extraction subunit 600 may extract the feature identification information from the reserved field of the file header of the video file; the second extraction sub-unit 620 may extract key features according to the position of the extended section of the video file indicated by the feature identification information extracted by the first extraction sub-unit 600. For example, the offset of the extension segment relative to the video file header can be extracted according to the reserved field value, and the key feature can be extracted from the extension segment corresponding to the offset. For example, if a reserved field in the file header of a video file is read, and the feature identification information is "0 x89a 0040000" is read out from the reserved field, the key feature of the video file can be extracted from the position where the offset of the extension segment of the video file from the video file header is "0 x89a 0040000". When the presentation unit 420 presents the thumbnail of the video file in the file management system of the video file processing apparatus, the key feature of the video file is presented, so that the user can quickly identify the video file when a large number of video files exist in the file management system through the key feature presented by the presentation unit 420. For details, reference may be made to the related description in the third embodiment of the video file processing method.
The video file processing device of the embodiment acquires the feature identification information of the video file through the first extraction subunit, the second extraction subunit can acquire the key features of the video file, the display unit displays the video file and the key features, and the user can conveniently, quickly and accurately identify the video file through the specific content of the video file displayed by the key features.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may select different ways to implement the described functionality for specific applications, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
If the described functionality is implemented in the form of computer software and sold or used as a stand-alone product, it is to some extent possible to consider all or part of the technical solution of the invention (for example, the part contributing to the prior art) to be embodied in the form of a computer software product. The computer software product is generally stored in a computer-readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the methods according to the embodiments of the present invention. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, and is only used for illustrating the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (4)

1. A video file processing method, comprising:
storing key features of a video file to an extension segment of the video file;
carrying feature identification information corresponding to the key feature in a video file header of the video file, wherein the feature identification information is used for indicating the position of the key feature in an extended segment of the video file, the position of the extended segment is an offset of the extended segment relative to the video file header, the video file header comprises a reserved field, the reserved field is set as the feature identification information, and a data block representing the key feature is added in the position of the extended segment;
acquiring the characteristic identification information of the video file;
acquiring key features from the position of the extended section of the video file indicated by the feature identification information according to the feature identification information;
displaying a thumbnail of a video file including the key feature.
2. The video file processing method according to claim 1, wherein the key features of the video file include:
a sequence of key frames and/or frames extracted from the video file; or
Posters and/or trailers obtained from video distributors and/or video auditors; or
And the image-text information related to the video file is set by the user.
3. A video file processing apparatus, comprising:
the acquiring unit is used for acquiring the characteristic identification information of the video file; acquiring key features of the video file according to the feature identification information;
the display unit is used for displaying the thumbnail of the video file comprising the key characteristics;
the acquisition unit includes:
a first extraction subunit for saving the key features into an extension segment of the video file, carrying the characteristic identification information corresponding to the key characteristic in the video file header of the video file, the feature identification information is used to indicate the location of the key feature in an extended segment of a video file, writing feature identification information corresponding to the key feature in a reserved field of a video file header of the video file, the position of the extension segment is the offset of the extension segment relative to the video file header, the video file header comprises a reserved field, the reserved field is set as the characteristic identification information, adding a data block representing the key feature at the position of the extension segment, extracting the feature identification information from the video file header of the video file, the feature identification information is used for indicating the position of the key feature in an extended segment of the video file;
and the second extraction subunit is used for extracting the key features of the video file from the extended segment of the video file indicated by the feature identification information.
4. The video file processing device according to claim 3, wherein the key features of the video file include:
a sequence of key frames and/or frames extracted from the video file; or
Posters and/or trailers obtained from video distributors and/or video auditors; or
And the image-text information related to the video file is set by the user.
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