WO2014190818A1

WO2014190818A1 - Method and apparatus of displaying download information of network resource

Info

Publication number: WO2014190818A1
Application number: PCT/CN2014/075470
Authority: WO
Inventors: 刘刚
Original assignee: 腾讯科技（深圳）有限公司
Priority date: 2013-05-31
Filing date: 2014-04-16
Publication date: 2014-12-04
Also published as: CN104092713A; TW201445434A; CN104092713B

Abstract

The present invention relates to the field of network technologies. Particularly, the present invention provides a method and an apparatus of displaying download information of a network resource. The method comprises: acquiring a preview image of the network resource, where the preview image comprises description information of the network resource; generating a 2D code of the network resource according to a download parameter of the network resource, where the download parameter comprises a download link of the network resource; superimposing the 2D code at a preset position on the preview image to generate a download information image comprising the download link of the network resource and the description information of the network resource; and displaying the download information image. The present invention can break the character limit on a real-time sharing platform, thereby increasing an information amount of download information, which is spread on the real-time sharing platform, of a network resource.

Description

Method and device for displaying download information of network resources

Technical field

The present invention belongs to the field of network technologies, and in particular, to a method and an apparatus for displaying download information of network resources. Background technique

With the rise of instant sharing platforms based on user relationships such as Weibo and third-party social networking sites, users can not only share information instantly through mobile clients, PC clients and web pages, but also through various channels. Forwarding other users' instant sharing content, therefore, based on the instant sharing platform, the information publishing speed and speed of communication have been rapidly improved.

Under the above background, the network resources on the Internet also publish their download links through the instant sharing platform, thereby greatly improving the speed and breadth of network resources. However, since the instant sharing content has a 140-character word limit, usually after carrying the download link of the network resource, only a brief text can be attached to describe the network resource, and no more about the network resource can be carried. Description information. In this case, taking the network video resource as an example, it is impossible to judge whether the video content corresponding to the download link is consistent with the corresponding text description, and the resolution of the video content cannot be previewed only by the brief text. In summary, in the limited information display space of the instant sharing platform, only a small amount of network resource download information can be displayed, and the download client cannot fully understand the actual content of the network resource, which is obviously not conducive to better network resources. propagation. Summary of the invention

In view of this, the present invention provides a method for displaying download information of a network resource, so as to improve the amount of information of network resource download information displayed by the instant sharing platform.

An aspect of the present invention provides a method for displaying download information of a network resource, including: Obtaining a preview image of the network resource, where the preview image includes description information of the network resource;

Generating a two-dimensional code of the network resource according to the download parameter of the network resource, where the download parameter includes a download link of the network resource;

Superimposing the two-dimensional code to a preset position of the preview picture, and generating a download link of the network resource and a download information picture of description information of the network resource;

The download information picture is displayed.

Another aspect of the present invention provides a display device for downloading information of a network resource, including: an obtaining unit, configured to acquire a preview image of the network resource, where the preview image includes description information of the network resource;

a two-dimensional code generating unit, configured to generate a two-dimensional code of the network resource according to a download parameter of the network resource, where the download parameter includes a download link of the network resource;

a picture generating unit, configured to superimpose the two-dimensional code to a preset position of the preview picture, and generate a download link of the network resource and a download information picture of description information of the network resource;

a display unit, configured to display the download information picture.

In the embodiment of the present invention, a download information picture of a network resource is generated, where the download information picture not only displays the description information of the network resource, but also carries the download portal of the network resource, and displays the download information picture to perform network resource sharing, Breaking through the character limitation of the instant sharing platform greatly increases the amount of information for downloading network resources through the instant sharing platform. DRAWINGS

1 is a flowchart of a method for displaying download information of a network resource according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a method for displaying download information of a network resource according to an embodiment of the present invention; A specific implementation flowchart of the method S101 for displaying download information of a network resource;

4 is a specific implementation of a method for displaying download information of a network resource according to an embodiment of the present invention. Flow chart

FIG. 5 is a flowchart of a specific implementation of a method for displaying download information of a network resource according to another embodiment of the present invention;

FIG. 6 is a flowchart of a specific implementation of a method for displaying download information of a network resource according to another embodiment of the present invention;

FIG. 7 is a flowchart of a specific implementation of a method for displaying download information of a network resource according to another embodiment of the present invention;

8 is a structural block diagram of a display device for downloading information of a network resource according to an embodiment of the present invention; and FIG. 9 is a diagram showing an example of a method for displaying download information of a network resource according to an embodiment of the present invention applied to a P2SP system. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiment of the present invention, a download information picture of a network resource is generated, where the download information picture not only displays the description information of the network resource, but also carries the download portal of the network resource, and displays the download information picture to perform network resource sharing, Breaking through the character limitation of the instant sharing platform greatly increases the amount of information for downloading network resources through the instant sharing platform.

In the embodiment of the present invention, the network resource is a digital file of any format capable of being transmitted on the Internet, including but not limited to video, audio, pictures, games, documents, and even a compressed package file containing a plurality of the above files, usually The network information is downloaded and displayed on the Internet to share the network resources. The client that needs to download the network resources can obtain the physical content of the network resource according to the description information of the network resource in the download information, and The download link included in the download information is used to obtain the network address of the network resource, thereby downloading the network resource.

It should be noted that the method for displaying the download information of the network resource provided by the embodiment of the present invention may be Preferably, the method can be used by the instant sharing platform for sharing network resources, wherein the instant sharing platform can include a microblog, a WeChat, an instant messaging tool, etc., for use in any network communication channel capable of image transmission. Internet products for instant information sharing, dissemination, and acquisition may also include user instant status publishing functions in third-party social networking sites. The instant sharing platforms have the following product features: Support for sending images, but for each message. There is a limit on the number of characters to be included. For example, each microblog is only allowed to send 140 words of text information. In the subsequent embodiment of the present invention, only the instant sharing platform is taken as an example to describe the display manner of downloading information of the network resource, and the display information display manner of other network communication channels can refer to the existing information publishing manner, and not limited.

FIG. 1 is a flowchart showing an implementation process of a method for displaying download information of a network resource according to an embodiment of the present invention, which is described in detail as follows:

In S101, a preview picture of the network resource is obtained, where the preview picture includes description information of the network resource.

Compared with the text information, in the same information display space, the image can express more information content in a more visual and intuitive manner. Therefore, in the embodiment, the obtained description information including the network resource is obtained. Previewing the image to represent the substance of the network resource can greatly increase the amount of information that can be transmitted in a limited information display space.

For different types of network resources, the obtained preview image contains different description information. For example, for a video resource, the preview image may be a screenshot of the video at a certain playing time point; for the image resource, the preview image is It can be a thumbnail of the picture; for audio resources, the preview picture can display the bit rate, duration, musician, album and other parameter information of the audio; for the compressed package resource, the preview picture can display the file in the compressed package List. For a variety of different preview picture description information, the corresponding preview picture is obtained in a different manner. This part will be described in detail in the following embodiments, and details are not described herein again.

In S102, a two-dimensional code of the network resource is generated according to the download parameter of the network resource, where the download parameter includes a download link of the network resource.

As an important part of the download information of network resources, the download link is usually also a string The form is displayed. In this case, on the one hand, it is often necessary to download the client to create a new download task by means of character-by-character input or copy-and-paste, which is for the download client installed on the mobile terminal. The operation is quite inconvenient; on the other hand, displaying the download link as a string also requires a certain character space, such as an instant sharing platform, which undoubtedly reduces the length of the text information that can be input.

For the above reasons, in the present embodiment, the download link of the network resource is encoded into a two-dimensional code. The two-dimensional code is a black and white graphic that is distributed in a plane (ie, two-dimensional direction) by a certain geometric pattern according to a certain rule, and is a quick response code (QR code) by using specific data. The data symbol information generated by the coding method has the advantages of large information capacity, wide coding range, strong fault tolerance, and variable size ratio. Since the QR code can be easily scanned by a laser reader, a Charge Couple Device (CCD) reader or a camera reader, the download link of the network resource is stored by the QR code, so that the download client can directly The download link of the network resource is obtained by the reader scanning, and the way that the user needs to manually complete the input or operation is abandoned.

As an embodiment of the present invention, the download parameter written in the two-dimensional code may include verification information such as a file hash value (Hash) corresponding to the network resource, in addition to the download link of the network resource. The case where the verification information of the file is carried in the two-dimensional code can be generally applied to the network resource implemented by Peer-to-Server and Peer (P2SP) technology or Peer-to-Peer (P2P) technology. The downloading system, because in the above network resource downloading system, the downloading data is derived from a plurality of different data sources, in order to ensure the correctness of the downloading result, each data fragmentation needs to be verified by the original file verification information provided by the source server. In this case, the download client needs to obtain the verification information while downloading. In this embodiment, by downloading the download information and the verification information of the network resource in the two-dimensional code, the download client can obtain the information only by one scan, thereby improving the download efficiency.

In S103, the two-dimensional code is superimposed to a preset position of the preview picture, and a download information picture including a download link of the network resource and description information of the network resource is generated. In this embodiment, the two-dimensional code generated by S102 is superimposed on the preview image acquired by S101, and the combination of the two-dimensional code and the preview image is completed. The preset position may be any position in the preview picture. Preferably, the principle is not to affect the overall view of the preview picture. For example, as shown in FIG. 2, the preset position may be set in the lower right corner of the preview picture. When superimposing, the two-dimensional code can be directly overlaid on the preset position in the preview picture, or the pixel on the preset position of the preview picture can be directly replaced with the two-dimensional code. Since the two-dimensional code is a structured graphic, the information carried by it does not change with the size ratio and resolution of the image, and the two-dimensional code can be correctly read even if it is partially missing or partially damaged. Therefore, even if the picture is transmitted through different network platforms, compression, size change occurs during the transfer, or because the digital code is added to the picture to cover the QR code, it can still deliver the correct download link. Guarantee the validity of download link propagation.

In this embodiment, the generated download information picture includes, but is not limited to, a bitmap file in a format of BMP, PNG, JPEG, or the like.

In S104, the download information picture is displayed.

After the download information picture of the network resource is generated in S103, the download information picture may be released, so that the download information picture is displayed during the sharing process of the network resource. The displayed download information picture includes description information about the network resource, so that the user terminal can fully understand the substantial content of the network resource, and at the same time, the two-dimensional code reading device such as the mobile terminal camera is used to scan the two-dimensional information in the downloaded information picture. The code, that is, the download link of the network resource can be obtained, and the download of the network resource is directly started.

In this embodiment, the download information picture may be directly published as an instant message, or may be propagated by means of message forwarding, and the downloaded information picture is displayed by the instant sharing platform. In addition, since the downloaded information picture is a bitmap file, it can also be displayed by any of the existing picture display modes, and is not limited thereto.

In this embodiment, a download information picture of the network resource is generated, and the download information picture not only displays the description information of the network resource, but also carries the download portal of the network resource, and displays the downloaded information picture to share the network resource, which can break through The character limit of the instant sharing platform has been greatly improved. The amount of information downloaded by the network resource through the instant sharing platform.

The following describes the manner in which the network resource preview picture in S101 is obtained through different embodiments:

As an embodiment of the present invention, the preview picture of the network resource may be a screenshot of the network resource. The embodiment is applicable to downloading information of a network resource having a screen display capability such as a video, a picture, or a game, as shown in FIG. 3, S101 is specifically:

In S301, N screenshots of the network resource are obtained, where N is an integer greater than or equal to 1. Among them, the screenshot is a visible image displayed on the terminal screen intercepted by an operating system or dedicated screenshot software, or a visible image displayed on the terminal screen by an external device such as a digital camera, a camera, or the like. Files generated by screenshots include, but are not limited to, bitmap files in BMP, PNG, JPEG, etc. formats.

In S302, N screenshots of the network resource are spliced to generate a preview picture of the network resource.

When the network resource is a video file, S301 is specifically as shown in FIG. 4:

In S401, N screenshot time points are generated according to the playing duration of the video file.

For the selection of the screenshot time point, several time points of the head, middle or tail of the video file can be selected as the screenshot time point according to the actual playing time of the video file.

In S402, images of the video files at the N screenshot time points are respectively captured to obtain the N screenshots.

Thus, by capturing images of different playback time points of the video file to generate a preview image, the approximate content of the video file can be displayed, which is convenient for the user to determine whether the video file is actually downloaded, for example, a screenshot generated by the 720P video file. The resolution is 1280x720, so that the user can have an intuitive understanding of the definition of the video file before downloading to determine whether the video file is the video file that needs to be downloaded.

In addition, since the head and the tail of the video file are generally introduced as texts such as subtitles, In the actual video file screenshot process, the average brightness value can be calculated for the captured image. If the calculated average brightness value of a certain screenshot is lower than a certain threshold value, it indicates that the screenshot may be subtitled and cannot be visually reflected. The image of the video content is adjusted to the original screenshot time point to capture an image that reflects the video content.

When the network resource is a picture file, S301 is specifically as shown in FIG. 5:

In S501, a thumbnail of the picture file is generated.

In S502, a thumbnail of the picture file is obtained as a screenshot of the picture file.

Specifically, the original picture file may be compressed or partially cropped to obtain a thumbnail of the picture as a preview picture of the picture file. This embodiment is applicable to when a network resource is a picture file with a higher pixel, for example, downloading some image processing materials, and generally, in order to ensure the quality of image processing, the materials are propagated by using ultra-high pixels, and the above method makes The user can preview the content of the material before downloading to determine whether the image file is the image file that needs to be downloaded.

As another embodiment of the present invention, the preview image of the network resource may also be used to display various parameter information of the network resource. As shown in FIG. 6, S101 is specifically:

In S601, file parameters of the network resource are extracted.

For example, for an audio file, file parameters include, but are not limited to, length, code rate, name, album, singer, track number, etc. of the audio file; for video files, file parameters include, but are not limited to, the length of the video file, Size, resolution, video content introduction, etc.; For image files, file parameters include, but are not limited to, image file resolution, size, Exchangeable Image File (EIXF) information, shooting time, and so on. The above file parameters can be obtained by parsing the file data.

In S602, a preview picture of the network resource is generated, and the preview picture displays file parameters of the network resource.

After obtaining the file parameters in S601, the file parameters may be summarized in the form of a list or a directory, and stored as a file in a picture format, thereby generating a preview picture of the network resource. The file parameter information of the network resource is displayed in the preview picture. Compared with the file parameter information of the network resource displayed in the instant message, the picture can accommodate more information to more fully reflect the substantial content of the network resource.

The embodiment described in FIG. 3 to FIG. 6 can be used by the network resource issuer to generate a download information map of the network resource, so that the network resource issuer can publish the download information map on the network communication channel to share the network resource. .

As an embodiment of the present invention, the preview picture may also be generated by a third-party server according to the principles described in the embodiments of FIG. 3 to FIG. 6 of the present invention, and as a party generating the download information picture, the download information picture may be generated. In the process, the preview image is obtained directly from the third-party server. As shown in FIG. 7, in this embodiment, S101 is specifically:

In S701, a hash value of the network resource is obtained.

For different files, the hash value generated based on its data content is unique, so the hash value can be used as a unique identifier for network resources. In this embodiment, the hash value of the network resource may be directly extracted from the corresponding data bit as part of the network resource data information, and may also be directly calculated through the data content of the network resource.

In S702, a request carrying the hash value is sent to a third-party server, so that the third-party server returns a preview picture of the network resource pre-stored in the third-party server according to the hash value.

In this embodiment, the preview picture of the network resource stored in the third-party server is stored in association with the hash value of the network resource. Therefore, after the third-party server receives the request, according to the hash value carried in the request, That is, you can find a preview picture of the corresponding network resource.

In S703, a preview picture of the network resource returned by the third-party server is received. In this embodiment, the third-party server may be a server in the network resource downloading system implemented by the P2SP/P2P technology or the offline downloading technology, and the third-party server also stores all or part of the data of the network resource, because the third party The server is connected to multiple clients at the same time. Therefore, the third party server is used to uniformly store the preview image without being added to the client as the network resource publisher. The preview image generation module is simplified, which simplifies the installation process of the client and improves the efficiency of generating the preview image.

Further, as an embodiment of the present invention, in S101, a preview picture of the network resource of a preset size may also be acquired. If the producer of the download information picture of the network resource is also the producer of the preview image, when generating the preview image, it can generate one or more preview images of the specified size according to the same image content; When generated by a third-party server, the third-party server may be required to return a preview image of a preset size, and the preview image returned by the third-party server may be compressed to obtain a preview image of a preset size. In this embodiment, the download information picture of the network resource is generated according to the preview image of the preset size, so that the downloaded download information picture for displaying can meet the actual upload bandwidth of the publisher, and the publishing meets the upload bandwidth condition. High quality download information picture.

For example, if the bandwidth is 100kB, if the preview image of 1M is selected, the time for uploading the downloaded information image takes about 10 seconds. If the preview image of 50M is selected, the time for uploading the downloaded information image takes about 1 minute, then In order to improve the downloading speed of network resources, you can select a 1M preview image to generate a download information picture.

FIG. 8 is a structural block diagram of a display device for downloading information of a network resource according to an embodiment of the present invention. The device may be located in a terminal system as a network resource issuer, and is used to run the embodiments of FIG. 1 to FIG. 7 of the present invention. A method of displaying download information of a network resource. For the convenience of explanation, only the parts related to the present embodiment are shown.

Referring to Figure 8, the apparatus includes, including:

The obtaining unit 81 is configured to obtain a preview image of the network resource, where the preview image includes description information of the network resource. The two-dimensional code generating unit 82 generates a two-dimensional code of the network resource by using a download parameter of the network resource, where the download parameter includes a download link of the network resource.

The picture generating unit 83 adds the two-dimensional code to a preset position of the preview picture, and generates a download link of the download link of the network resource and the description information of the network resource.

The display unit 84 displays the download information picture.

Optionally, the obtaining unit 81 includes:

The screenshot subunit obtains N screenshots of the network resource, where N is an integer greater than or equal to 1. The splicing subunit splices the N screenshots of the network resource to generate a preview image of the network resource.

Optionally, the network resource is a video file, and the screenshot subunit includes:

The time-point generating sub-units are generated, and N screenshot time segments are intercepted according to the playing time of the video file, and the images of the video files at the N screenshot time points are respectively captured to obtain the N screenshots.

The brightness value calculation unit is configured to calculate an average brightness value of the screenshot, and if the calculated average brightness value of a certain screenshot is lower than a certain threshold, the original screenshot time point is adjusted.

Optionally, if the network resource is a picture file, the N is equal to 1, and the screenshot subunit includes:

A thumbnail generation subunit that generates a thumbnail of the picture file.

Determining a subunit, determining a thumbnail of the picture file as a screenshot of the picture file.

Optionally, the obtaining unit 81 includes:

The file parameter extraction subunit extracts file parameters of the network resource.

Generating a subunit, generating a preview picture of the network resource, where the file parameter of the network resource is displayed in the preview picture.

Optionally, the obtaining unit 81 includes:

The hash value acquisition subunit acquires a hash value of the network resource. Sending a subunit, sending a request carrying the hash value to a third-party server, so that the third-party server returns a preview picture of the network resource pre-stored in the third-party server according to the hash value.

Receiving a subunit, receiving a preview picture of the network resource returned by the third party server. Optionally, the obtaining unit 81 is specifically configured to acquire a preview image of the network resource of a preset size.

Optionally, the download parameter further includes verification information of the network resource.

The method for displaying the download information of the network resource provided by the embodiment of the present invention is described in detail by using the network resource downloading system implemented by the P2SP technology as an example.

Referring to FIG. 9, on the basis of the existing P2SP system, the P2SP server adds a picture interface server 91, a picture database 92, and an instant sharing platform interface module 93, wherein the picture interface server 91 can have the following functions:

Receiving a download information picture of network resources of different specifications uploaded by the P2SP client;

For the high-resolution download information picture, the download information picture for converting the original download information picture into different preset sizes is provided;

Generating a download information picture of the network resource for the network resource that is downloaded by the P2SP server; providing a P2SP client with a preset size download information picture corresponding to the network resource;

The download information picture corresponding to each network resource is saved in the picture database 92.

The image database 92 can have the following functions:

Saving a download information picture corresponding to each network resource;

Accepting the writing and reading operations of the picture interface server 91 on the downloaded information picture;

The download information picture is provided for the instant sharing platform, so that the instant sharing platform can publish the downloaded information picture.

The instant sharing platform interface module 93 can have the following functions:

Providing an interface package of the P2SP system and each instant sharing platform;

Obtain instant sharing platform user relationships; Communicate with the P2SP client, and publish the instant message shared by the P2SP client to the instant sharing platform, and if the instant message carries the downloaded information picture, the corresponding download information picture is directly extracted from the picture database 12 and released.

On the basis of the existing P2SP system, the P2SP client adds the following functions:

Obtain a preview image of the network resource to be published, including a screenshot function or a picture success, or a communication function with the picture interface server 91 in the P2SP server;

QR code generation and analysis.

By adding the above structure or function, it is possible to complete the generation and display of network resource download information pictures in the P2SP system, thereby improving the shareability of network resources in the P2SP system.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

claims

1. A method for displaying download information of network resources, which is characterized by including:

Obtain a preview picture of the network resource, where the preview picture contains description information of the network resource;

Generate the QR code of the network resource according to the download parameters of the network resource, where the download parameters include the download link of the network resource;

Superimpose the QR code to the preset position of the preview image, and generate a download information image including the download link of the network resource and the description information of the network resource;

Display the download information image.

2. The method of claim 1, wherein said obtaining a preview image of the network resource includes:

Obtain N screenshots of the network resource, where N is an integer greater than or equal to 1;

The N screenshots of the network resource are spliced to generate a preview image of the network resource.

3. The method of claim 2, wherein the network resource is a video file, and obtaining N screenshots of the network resource includes:

Generate N screenshot time points according to the playback duration of the video file;

Images of the video file at the N screenshot time points are respectively intercepted to obtain the N screenshots.

4. The method of claim 3, wherein the resolution of the screenshot is the same as the resolution of the video file.

5. The method of claim 3, wherein the average brightness value of the screenshot is calculated, and if the calculated average brightness value of a certain screenshot is lower than a certain threshold, the original screenshot time point is adjusted. .

6. The method of claim 2, wherein the network resource is a picture file, the N is equal to 1, and the obtaining N screenshots of the network resource includes:

Generate thumbnails of the image files;

The thumbnail of the picture file is determined as a screenshot of the picture file.

7. The method of claim 1, wherein said obtaining the preview image of the network resource includes:

Extract file parameters of the network resource;

A preview picture of the network resource is generated, and the preview picture displays the file parameters of the network resource.

8. The method of claim 1, wherein said obtaining the preview image of the network resource includes:

Obtain the hash value of the network resource;

Send a request carrying the hash value to a third-party server, so that the third-party server returns a preview image of the network resource pre-stored in the third-party server according to the hash value; receiving the first The preview image of the network resource returned by the third-party server.

9. The method of claim 8, wherein the preview image of the network resource stored in the third-party server is associated with the hash value of the network resource.

10. The method according to any one of claims 1 to 9, characterized in that, obtaining the preview image of the network resource includes:

Obtain a preview image of the network resource in a preset size.

11. The method of claim 1, wherein the download parameters further include verification information of the network resource.

12. A display device for downloading information of network resources, characterized by including:

The acquisition unit is used to obtain the preview picture of the network resource, where the preview picture contains the description information of the network resource; the QR code, where the download parameters include the download link of the network resource;

A picture generation unit, used to superimpose the QR code to a preset position of the preview picture, and generate a download information picture including the download link of the network resource and the description information of the network resource; a display unit, used to Display the download information image.

13. The device according to claim 12, wherein the acquisition unit includes: a screenshot subunit, used to acquire N screenshots of the network resource, where N is an integer greater than or equal to 1;

The splicing subunit is used to splice N screenshots of the network resource to generate a preview image of the network resource.

14. The device according to claim 13, wherein the network resource is a video file, and the screenshot subunit includes:

The screenshot time point generation subunit is used to generate N screenshot time points according to the playback duration of the video file;

The interception subunit is used to intercept images of the video file at the N screenshot time points, respectively, to obtain the N screenshots.

15. The device according to claim 14, wherein the resolution of the screenshot taken by the interception sub-unit is the same as the resolution of the video file.

16. The device of claim 14, wherein the acquisition unit includes a brightness value calculation unit for calculating the average brightness value of the screenshot, if the calculated average brightness value of a certain screenshot is lower than a certain value. If a threshold is set, the original screenshot time point will be adjusted.

17. The device according to claim 13, wherein the network resource is a picture file, the N is equal to 1, and the screenshot subunit includes:

Thumbnail generation subunit, used to generate thumbnails of the image files;

The determining subunit is used to determine the thumbnail of the picture file as a screenshot of the picture file.

18. The device according to claim 12, wherein the acquisition unit includes: a file parameter extraction subunit, used to extract file parameters of the network resource;

The generation subunit is used to generate a preview picture of the network resource, where the preview picture displays the file parameters of the network resource.

19. The device according to claim 12, wherein the obtaining unit includes: a hash value obtaining subunit, used to obtain the hash value of the network resource; A sending subunit, configured to send a request carrying the hash value to a third-party server, so that the third-party server returns a preview of the network resource pre-stored in the third-party server according to the hash value. picture;

The receiving subunit is configured to receive the preview image of the network resource returned by the third-party server.

20. The device of claim 19, wherein the preview image of the network resource stored in the third-party server is associated with a hash value of the network resource.

21. The device according to any one of claims 12 to 20, wherein the obtaining unit is used to obtain a preview image of the network resource of a preset size.

22. The device of claim 12, wherein the download parameters further include verification information of the network resource.