CN115022726A - Surrounding information generation and barrage display method, device, equipment and storage medium - Google Patents
Surrounding information generation and barrage display method, device, equipment and storage medium Download PDFInfo
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- 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
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- 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
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- 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
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Abstract
The application relates to a method, a device, equipment and a storage medium for generating surrounding information and displaying a barrage, and relates to the field of multimedia processing. The surround information generating method includes: acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value; acquiring position information of each target object corresponding to the indication information of each target playing time; acquiring position information of a bullet screen surrounding center according to the position information of each target object; acquiring the surrounding size of the bullet screen according to the position information of each target object; and taking the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to the indication information of each target playing time in the video to be processed. This application is used for solving the single problem of bullet curtain pattern.
Description
Technical Field
The present application relates to the field of multimedia processing, and in particular, to a method, an apparatus, a device, and a storage medium for generating surrounding information and displaying a bullet screen.
Background
With the progress and application of information technologies such as mobile internet, cloud computing, big data and the like, streaming media application has become an integral part of people's lives. In order to improve the interaction mechanism of the user, the streaming media service provider makes the barrage content an important link for connecting the video content and the user. The barrage not only adds the time label of the associated video content to the comment, but also can greatly enrich the video content, and the most important thing is that the barrage can enable other users to generate the feeling of interactive chat, and after consistent viewpoints appear in the barrage, the recognition feeling of the video can be enhanced. With the continuous update of the barrage content, the video content is endowed with secondary production or continuous production capacity, and even some classical dramas combine with the current barrage to revive the vitality again. The barrage reduces the threshold of common audiences participating in video re-creation, and effectively prolongs the life cycle of video content.
Traditional barrage show form rolls to the screen left side from the screen right side, and animation effect is comparatively single, can not effectively improve user's participation sense and send the wish.
Disclosure of Invention
The application provides a method, a device, equipment and a storage medium for generating surrounding information and displaying a bullet screen, which are used for solving the problem of single bullet screen style.
In a first aspect, the present application provides a method for generating surrounding information, which is applied to a server, and includes:
acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value;
acquiring position information of each target object corresponding to the target playing time indication information;
acquiring position information of a bullet screen surrounding center according to the position information of each target object;
acquiring the surrounding size of the bullet screen according to the position information of each target object;
and taking the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to each target playing time indication information in the video to be processed.
Optionally, before obtaining position information of each target object corresponding to each piece of target playing time indication information, the method further includes:
acquiring a mapping relation between the playing time indication information and the object position information in the video to be processed;
the obtaining of the position information of each target object corresponding to the indication information of each target playing time includes:
and searching the position information of each target object corresponding to the indication information of each target playing time according to the mapping relation.
Optionally, the obtaining of the indication information of each target playing time includes:
acquiring a mask image corresponding to the playing time indication information, wherein an object area in the mask image is marked by a first color, and a background area is marked by a second color;
acquiring the similarity between the mask images;
taking each mask image with the similarity larger than a similarity threshold value as a target mask image;
and searching each target playing time indication information corresponding to the target mask image.
Optionally, before the obtaining of the similarity between the mask images, the method further includes:
acquiring the size of the object region in each mask image;
and screening out the mask image of which the size of the object area is smaller than a preset value.
Optionally, the obtaining, according to the position information of each target object, position information of a bullet screen surrounding a center includes:
determining the variation amplitude of the object position in the target frame sequence according to the position information of each target object;
acquiring a calculation strategy of the position information of the bullet screen surrounding center according to the variation amplitude of the position of the object;
and according to the bullet screen surrounding center position information calculation strategy, acquiring the position information of the bullet screen surrounding center.
Optionally, the obtaining of the calculation policy of the position information of the bullet screen surrounding the center according to the variation amplitude of the position of the object includes:
comparing the variation amplitude of the object position with a preset variation amplitude value;
if the variation amplitude of the object position is smaller than or equal to the preset variation amplitude value, the calculation strategy of the bullet screen surrounding center position information is as follows: acquiring the position information of the center point of each object in the target frame sequence according to the position information of each target object, and determining a bullet screen surrounding center and the position information of the bullet screen surrounding center according to the position information of the center point of each object;
if the variation amplitude of the object position is larger than the preset variation amplitude value, the calculation strategy of the bullet screen surrounding center position information is as follows: and acquiring the position information of the center point of each object in the target frame sequence according to the position information of each target object, and taking the position information of the center point of each object as the position information of the surrounding center of each bullet screen.
Optionally, the obtaining, according to the position information of each target object, a bullet screen surrounding size includes:
acquiring object width information in the target frame sequence according to the position information of each target object;
acquiring the surrounding radius of the bullet screen according to the width information of the object;
and taking the bullet screen surrounding radius as the bullet screen surrounding size.
In a second aspect, the present application provides a bullet screen display method, applied to a client, including:
acquiring bullet screen content marked as a surrounding bullet screen;
acquiring playing time indication information corresponding to the bullet screen content, and acquiring target surrounding information corresponding to the playing time indication information, wherein the target surrounding information comprises position information of a bullet screen surrounding center and bullet screen surrounding size;
and drawing the bullet screen content into a three-dimensional surrounding bullet screen for displaying when the video to be played is played to the playing time indication information according to the target surrounding information.
Optionally, before the obtaining of the target surround information corresponding to the play time indication information, the method further includes:
acquiring a video playing request, wherein the video playing request comprises an identifier of the video to be played;
and acquiring surrounding information corresponding to the identifier of the video to be played, wherein a corresponding relation exists between the surrounding information and target playing time indication information.
Optionally, the stereoscopic surrounding bullet screen is in a three-dimensional circular ring shape.
Optionally, the stereoscopic surrounding type barrage is provided with a shadow effect.
Optionally, before the obtaining of the surrounding information corresponding to the identifier of the video to be played, the method further includes:
sending a surrounding information query request to a server, wherein the surrounding information query request comprises an identifier of the video to be played;
and acquiring feedback information sent by the server, wherein the feedback information is used for indicating that the video to be played contains surrounding information.
Optionally, before the acquiring the bullet screen content marked as the surrounding bullet screen, the method further includes:
and when the video to be played is played to the target playing time indication information, displaying a guide bullet screen, wherein the guide bullet screen is used for prompting a target figure surrounded by surrounding information corresponding to the target playing time indication information.
In a third aspect, the present application provides a wrap information generating apparatus, configured to a server, including:
the first acquisition module is used for acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value;
the second acquisition module is used for acquiring the position information of each target object corresponding to the indication information of each target playing time;
the third acquisition module is used for acquiring the position information of the bullet screen surrounding center according to the position information of each target object;
the fourth acquisition module is used for acquiring the surrounding size of the bullet screen according to the position information of each target object;
and the first processing module is used for taking the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to each target playing time indication information in the video to be processed.
In a fourth aspect, the present application provides a bullet screen display device, configured at a client, including:
the fifth acquisition module is used for acquiring the bullet screen content marked as the surrounding bullet screen;
a sixth obtaining module, configured to obtain play time indication information corresponding to the bullet screen content, and obtain target surrounding information corresponding to the play time indication information, where the target surrounding information includes position information of a bullet screen surrounding center and a bullet screen surrounding size;
and the second processing module is used for drawing the bullet screen content into a three-dimensional surrounding bullet screen for displaying when the video to be played is played to the playing time indication information according to the target surrounding information.
In a fifth aspect, the present application provides an electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus; the memory for storing a computer program; the processor is configured to execute a program stored in the memory, and implement the surround information generating method according to the first aspect, or implement the bullet screen display method according to the second aspect.
In a sixth aspect, the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the surround information generating method of the first aspect or implements the bullet screen display method of the second aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: in the embodiment of the application, the server obtains indication information of each target playing time, wherein each indication information of the target playing time corresponds to a sequence of target frames in a video to be processed, the variation amplitude of the object size in the sequence of target frames is smaller than a threshold value, position information of each target object corresponding to each indication information of the target playing time is obtained, position information of a bullet screen surrounding center is obtained according to the position information of each target object, a bullet screen surrounding size is obtained according to each position information of the target object, and the position information of the bullet screen surrounding center and the bullet screen surrounding size are used as surrounding information corresponding to each indication information of the target playing time in the video to be processed.
The variation amplitude of the object size in the target frame sequence is less than the threshold value, which indicates that the object size in the target frame sequence does not change dramatically, the scene switching between the near view and the far view is not performed, namely, the object in the target frame sequence is suitable for bullet screen surrounding, the bullet screen surrounding effect is stable, the target frame sequence corresponds to each target playing time indication information, the server acquires the position information of the bullet screen surrounding center and the bullet screen surrounding size according to each target object position information corresponding to each target playing time indication information, and then generate the surrounding information, make things convenient for follow-up client to draw into three-dimensional surrounding type barrage with barrage content according to the surrounding information and show, make barrage content carry out three-dimensional surrounding around the object and show, can make barrage content and object more closely combine, effectively strengthened the presentation of object inner individuation or user to the comment of object. The style of three-dimensional surrounding type barrage is more novel, can effectively improve user's participation sense and barrage transmission wish, has solved the single problem of barrage style.
The client acquires the bullet screen content marked as the surrounding bullet screen, acquires the playing time indication information corresponding to the bullet screen content, and acquires the target surrounding information corresponding to the playing time indication information, wherein the target surrounding information comprises the position information of the bullet screen surrounding center and the bullet screen surrounding size, and the bullet screen content is drawn into a three-dimensional surrounding bullet screen for display when the video to be played is played to the playing time indication information according to the target surrounding information.
The client acquires corresponding play time indication information and target surrounding information through the bullet screen content marked as the surrounding type bullet screen, and draws the bullet screen content into a three-dimensional surrounding type bullet screen for display when the video to be played is played to the play time indication information according to the target surrounding information, so that the bullet screen content is displayed around the object in a three-dimensional surrounding manner, the bullet screen content can be combined with the object more closely, and the intuition of the object is effectively enhanced or the comment of the user on the object is presented. The style of three-dimensional surrounding type barrage is more novel, can effectively improve user's participation sense and barrage transmission wish, has solved the single problem of barrage style.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic flow chart of a method for generating surround information according to an embodiment of the present application;
fig. 2 is a schematic flow chart illustrating a method for obtaining indication information of each target playing time in an embodiment of the present application;
fig. 3 is a schematic flow chart illustrating a method for obtaining position information of a bullet screen surrounding center according to an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating a method for obtaining a calculation strategy of bullet screen surrounding center position information in an embodiment of the present application;
FIG. 5 is a flowchart illustrating a bullet screen display method according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a bullet screen display system according to an embodiment of the present application;
fig. 7 is a schematic view illustrating a display effect of a stereoscopic surrounding type bullet screen according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a surround information generating apparatus according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a bullet screen display device in an embodiment of the present application;
fig. 10 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiment of the application, a method for generating surrounding information is provided, and the method is applied to a server. In the embodiment of the present application, as shown in fig. 1, the method flow of generating the surround information mainly includes:
The target playing time indication information corresponds to a target frame sequence in the video to be processed, and the variation amplitude of the object size in the target frame sequence is smaller than a threshold value.
And the target playing time indication information is used for indicating the target playing time, and can be the target playing time or the frame number of the image frame corresponding to the target playing time in the video to be processed.
The sequence of target frames refers to a plurality of image frames. The threshold value may be an empirical value, or may be a numerical value obtained through a plurality of experiments. The object may be a face in the video to be processed, or may also be other objects in the video to be processed, for example, a building, an animal, and the like. The object size may be length information and width information of the object, or may be an area of the object, and may indicate a size of the object.
The variation amplitude of the object size in the target frame sequence is smaller than the threshold value, which indicates that the object size in the target frame sequence does not have drastic change, and the scene switching between the close view and the distant view is not performed, i.e. the objects in the target frame sequence are suitable for bullet screen surrounding, and the bullet screen surrounding effect is relatively stable.
In a specific embodiment, as shown in fig. 2, the obtaining of the indication information of each target playing time includes:
Wherein the object area in the mask image is identified by a first color and the background area is identified by a second color. For example, when the object is a human face, the face area in the mask image is marked in black, and the background area is marked in white.
And the playing time indication information is used for indicating the playing time, and can be the playing time or the frame number of the image frame corresponding to the playing time in the video to be processed.
The mask image corresponding to the playing time indication information is obtained, the server can perform semantic segmentation on the image frame corresponding to the playing time in the video to be processed, the semantic segmentation method is specific to the pixel level when the image is processed, and each pixel in the image frame is distributed to an object area or a background area. Or the server acquires the mask image corresponding to the playing time indication information sent by the mask production platform.
In a specific embodiment, before obtaining the similarity between the mask images, the method for generating the surrounding information further includes: acquiring the size of an object area in each mask image; and screening out the mask image of which the size of the object area is smaller than a preset value.
The preset value may be an empirical value or a numerical value obtained through multiple tests. In some image frames in the video to be processed, the face image does not exist, or the face image is too small, so that an object area blank exists in the acquired mask image, or the mask image with the too small size of the object area exists. Before the similarity between all mask images is obtained, the mask images with the size of the object area smaller than the preset value are screened out, the mask images can be preprocessed, the mask images which are useless for generating surrounding information are screened out, and the execution efficiency of subsequent operation can be improved.
And step 203, taking each mask image with the similarity larger than the similarity threshold as a target mask image.
The similarity threshold may be an empirical value or a numerical value obtained through multiple experiments. And taking the mask images with the similarity larger than the similarity threshold as target mask images, wherein the target mask images show that the moving range of the object between the target mask images is relatively small or the moving speed of the object is relatively slow. The object in the target frame sequence corresponding to the target mask image is suitable for bullet screen surrounding, and the bullet screen surrounding effect is stable. For example, the position of the object is substantially unchanged, or the object slowly moves from the left end of the play screen to the right end of the play screen.
And 204, searching indication information of each target playing time corresponding to the target mask image.
And 102, acquiring the position information of each target object corresponding to the indication information of each target playing time.
In a specific embodiment, before obtaining the position information of each target object corresponding to the indication information of each target playing time, the method for generating the surrounding information further includes: and acquiring the mapping relation between the indication information of the playing time and the position information of the object in the video to be processed. Acquiring the position information of each target object corresponding to the indication information of each target playing time, wherein the position information comprises the following steps: and searching the position information of each target object corresponding to the indication information of each target playing time according to the mapping relation.
The server may pre-establish a mapping relationship between the playing time indication information and the object position information in the video to be processed, when searching the target object position information, the target object position information is searched according to the mapping relationship, without separately processing the image frame corresponding to the target playing time indication information each time to obtain the target object position information, the whole video to be processed is directly processed, the object position information corresponding to each playing time indication information is obtained, the mapping relationship between the playing time indication information and the object position information is established, and subsequent searching is facilitated. The object position information may be position information of a detection frame of the object, for example, the object is a face, the object position information is position information of a rectangular detection frame of the face, coordinates of 4 vertices of the rectangular detection frame of the face may be included, or coordinates of a lower left corner of the rectangular detection frame of the face and length information and width information of the rectangular detection frame of the face may be included.
And 103, acquiring the position information of the bullet screen surrounding the center according to the position information of each target object.
In a specific embodiment, as shown in fig. 3, obtaining the position information of the bullet screen surrounding the center according to the position information of each target object includes:
In a specific embodiment, as shown in fig. 4, the obtaining of the calculation strategy of the bullet screen surrounding center position information according to the variation amplitude of the object position includes:
The preset variation amplitude value may be an empirical value or a numerical value obtained through multiple tests.
The fact that the variation amplitude of the object position is smaller than or equal to the preset variation amplitude value means that the moving range of the object is relatively small, for example, in each piece of target object position information, the abscissa with the smallest left lower corner point of the object is 100px (pixels), and the abscissa with the largest left lower corner point of the object is 105px (pixels). The position information of the center point of the object may be position information of the center point of a rectangular detection frame of the object. Because the variation amplitude of the position of the object is smaller than or equal to the preset variation amplitude value, the moving range of the object is smaller, only one bullet screen surrounding center can be obtained, the position of the bullet screen surrounding center is fixed, and the bullet screen surrounding center does not move along with the movement of the object, so that slight back-and-forth jumping of surrounding information in a target frame sequence is avoided, and the visual experience of a user in watching is influenced.
And determining the position information of a bullet screen surrounding center and the bullet screen surrounding center according to the position information of the center point of each object, wherein the position information of the center point of each object can be an average value, and the average value is used as the position information of the bullet screen surrounding center.
The fact that the variation range of the object position is larger than the preset variation range value means that the movement range of the object is relatively large, for example, the object slowly moves from the left end of the playing picture to the right end of the playing picture. Because the variation range of the position of the object is larger than the preset variation range value, the movement range of the object is large, and a bullet screen surrounding center can be acquired for each image frame, namely, a bullet screen surrounding center is acquired according to the position information of each target object, the position of the bullet screen surrounding center is not fixed, and the bullet screen surrounding center moves along with the movement of the object, so that the situation that the object moves for a long distance, the surrounding information stays at the original position, the surrounding information is separated from the object, and the situation that the object surrounded by the surrounding information cannot be indicated is avoided.
And 303, acquiring the position information of the bullet screen surrounding center according to the bullet screen surrounding center position information calculation strategy.
And 104, acquiring the surrounding size of the bullet screen according to the position information of each target object.
In a specific embodiment, acquiring the surrounding size of the bullet screen according to the position information of each target object includes: acquiring object width information in a target frame sequence according to the position information of each target object; acquiring the surrounding radius of the bullet screen according to the width information of the object; and taking the bullet screen surrounding radius as the bullet screen surrounding size.
The object width information can be directly used as the diameter of the bullet screen in a surrounding mode, and the object width information and a preset value can also be used as the diameter of the bullet screen in a surrounding mode. The circling radius of the bullet screen can be adjusted.
And 105, taking the position information and the surrounding size of the bullet screen surrounding center as surrounding information corresponding to the indication information of each target playing time in the video to be processed.
After the position information and the surrounding size of the bullet screen surrounding center are used as surrounding information corresponding to indication information of each target playing time in the video to be processed, the server can splice the surrounding information into a data packet and send the data packet to a Content Delivery Network (CDN). When the client needs the surround information, the client downloads the data packet of the surround information from the CDN.
The embodiment of the application provides a bullet screen display method, which is applied to a client. In the embodiment of the present application, as shown in fig. 5, the method flow of bullet screen display mainly includes:
In a specific embodiment, before acquiring the bullet screen content marked as the surrounding bullet screen, the bullet screen display method further includes: and when the video to be played is played to the target playing time indication information, displaying a guide bullet screen, wherein the guide bullet screen is used for prompting a target figure surrounded by the surrounding information corresponding to the target playing time indication information.
For example, if the video to be processed has surrounding information at the playing time a and the target person surrounded by the surrounding information is B, a guiding barrage is displayed to indicate that a surrounding type barrage surrounding the target person B can be sent at the playing time a. The guidance barrage can be a text prompt or a picture effect display of a surrounding barrage surrounding the target character B at the playing time A.
When the video to be played is played to the target playing time indication information, the guidance barrage is displayed, the user can be prompted to send barrage content related to the target character at the target playing time indication information, and the relevance between the barrage content and the target character surrounded by the barrage content is increased.
The target surrounding information comprises position information of a bullet screen surrounding center and bullet screen surrounding size.
In a specific embodiment, before obtaining the target surround information corresponding to the play time indication information, the bullet screen display method further includes: acquiring a video playing request, wherein the video playing request comprises an identifier of a video to be played; and acquiring surrounding information corresponding to the identifier of the video to be played, wherein the surrounding information and the target playing time indication information have a corresponding relation.
By acquiring the surrounding information corresponding to the identifier of the video to be played, the client downloads all the surrounding information corresponding to the video to be played to the local client, and does not need to go to a server or a CDN for downloading each time, so that the subsequent operation is facilitated, and the interactive flow with the server or the CDN is saved.
In a specific embodiment, before obtaining the surrounding information corresponding to the identifier of the video to be played, the bullet screen display method further includes: sending a surrounding information query request to a server, wherein the surrounding information query request comprises an identifier of a video to be played; and acquiring feedback information sent by the server, wherein the feedback information is used for indicating that the video to be played contains surrounding information.
When the feedback information sent by the server is acquired, the fact that the video to be played contains the surrounding information is determined, then the surrounding information corresponding to the identification of the video to be played is acquired, and invalid operation of acquiring the surrounding information corresponding to the identification of the video to be played when the video to be played does not contain the surrounding information is avoided.
The bullet screen content is drawn into a stereoscopic surrounding bullet screen for display, and the bullet screen content may be drawn into the stereoscopic surrounding bullet screen by using OpenGL (Open Graphics Library).
According to the position information of the bullet screen surrounding center, the bullet screen surrounding size and the preset inclination angle, the 3D ring can be drawn through OpenGL, the coordinates of each position in the 3D ring are obtained, and the running track of the bullet screen content can be determined according to the coordinates of each position in the 3D ring.
Drawing a 3D ring through OpenGL, drawing the bullet screen content into pictures, pasting the picture texture to the shape of the 3D ring, and realizing the drawing of a three-dimensional surrounding bullet screen. In fact, the coordinates of the 3D ring and the coordinates of the bullet screen content are mapped, and the bullet screen content is drawn into a three-dimensional surrounding bullet screen.
Drawing the 3D ring through OpenGL, setting up two planes and cutting apart into two parts with the 3D ring, through the first part of drawing the 3D ring, do not draw the second part of 3D ring, realize showing that the bullet curtain at the first part of 3D ring is not sheltered from by the portrait, show the effect that the bullet curtain of the second part of 3D ring is sheltered from by the portrait. The bullet screen content can move in the 3D circular ring, when the bullet screen content moves to the first part of the 3D circular ring, namely the coordinates of the bullet screen content are in the range of the coordinates of the first part of the 3D circular ring, the bullet screen content is drawn, and when the bullet screen content moves to the second part of the 3D circular ring, namely the coordinates of the bullet screen content are in the range of the coordinates of the second part of the 3D circular ring, the bullet screen content is not drawn. For example, plane a and plane B divide the 3D circle into two parts, a first part of the 3D circle rotated counterclockwise from plane a to plane B is drawn, and a second part of the 3D circle rotated counterclockwise from plane B to plane a is not drawn. In one embodiment, the stereoscopic surrounding bullet screen is in a three-dimensional annular shape.
In one embodiment, the stereoscopic surrounding type bullet screen has a shadow effect.
In an embodiment, as shown in fig. 6, a schematic diagram of a bullet screen display system is shown.
The bullet screen display system includes a mask production platform 601, a server 602, a CDN603, and a client 604. The mask production platform 601 sends the mask image and the object position information corresponding to the play time indication information to the server 602. The server 602 acquires the mask image and the object position information corresponding to the play time indication information sent by the mask production platform 601, generates the surrounding information, and sends the surrounding information to the CDN 603. The client 604 sends a surrounding information query request to the server 602, and after receiving the feedback information sent by the server 602, obtains surrounding information from the CDN603, and draws the barrage content into a stereoscopic surrounding barrage for display.
In one embodiment, as shown in fig. 7, a schematic view of a display effect of a stereoscopic surrounding bullet screen is shown. Fig. 7 shows a face, a three-dimensional surrounding type bullet screen surrounding the face, the bullet screen content of the three-dimensional surrounding type bullet screen is that "character a is really beautiful and too loved", the three-dimensional surrounding type bullet screen is in a three-dimensional circular ring shape, two characters "too can" are shielded by the face and cannot be displayed, and the remaining characters "character a is really beautiful and loved" in the bullet screen content are displayed.
In summary, in the embodiment of the present application, the server obtains indication information of each target playing time, where the indication information of each target playing time corresponds to a sequence of target frames in the video to be processed, a variation range of an object size in the sequence of target frames is smaller than a threshold, obtains position information of each target object corresponding to the indication information of each target playing time, obtains position information of a bullet screen surrounding center according to the position information of each target object, obtains a bullet screen surrounding size according to the position information of each target object, and uses the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to the indication information of each target playing time in the video to be processed.
The variation amplitude of the object size in the target frame sequence is less than the threshold value, which indicates that the object size in the target frame sequence does not change dramatically, the scene switching between the near view and the far view is not performed, namely, the object in the target frame sequence is suitable for bullet screen surrounding, the bullet screen surrounding effect is stable, the target frame sequence corresponds to each target playing time indication information, the server acquires the position information of the bullet screen surrounding center and the bullet screen surrounding size according to each target object position information corresponding to each target playing time indication information, and then generate the surrounding information, make things convenient for follow-up client to draw into three-dimensional surrounding type barrage with barrage content according to the surrounding information and show, make barrage content carry out three-dimensional surrounding around the object and show, can make barrage content and object more closely combine, effectively strengthened the presentation of object inner individuation or user to the comment of object. The style of three-dimensional surrounding type barrage is more novel, can effectively improve user's participation sense and barrage transmission wish, has solved the single problem of barrage style.
The method comprises the steps that a client side obtains bullet screen content marked as a surrounding type bullet screen, obtains playing time indication information corresponding to the bullet screen content, and obtains target surrounding information corresponding to the playing time indication information, wherein the target surrounding information comprises position information of a bullet screen surrounding center and bullet screen surrounding size, and when a video to be played is played to the playing time indication information, the bullet screen content is drawn into a three-dimensional surrounding type bullet screen to be displayed according to the target surrounding information.
The client acquires corresponding play time indication information and target surrounding information through the bullet screen content marked as the surrounding type bullet screen, and draws the bullet screen content into a three-dimensional surrounding type bullet screen for display when the video to be played is played to the play time indication information according to the target surrounding information, so that the bullet screen content is displayed around the object in a three-dimensional surrounding manner, the bullet screen content can be combined with the object more closely, and the intuition of the object is effectively enhanced or the comment of the user on the object is presented. The style of three-dimensional type bullet curtain of encircleing is more novel, can effectively improve user's participation sense and bullet curtain and send the wish, has solved the single problem of bullet curtain style.
Based on the same concept, the embodiment of the present application provides a surrounding information generating device, where the surrounding information generating device is configured in a server, and specific implementation of the device may refer to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 8, the apparatus mainly includes:
a first obtaining module 801, configured to obtain indication information of each target playing time, where each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and a variation amplitude of an object size in the target frame sequence is smaller than a threshold;
a second obtaining module 802, configured to obtain position information of each target object corresponding to each piece of target playing time indication information;
a third obtaining module 803, configured to obtain, according to the position information of each target object, position information of a bullet screen surrounding a center;
a fourth obtaining module 804, configured to obtain the bullet screen surrounding size according to the position information of each target object;
the first processing module 805 is configured to use the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to each piece of target playing time indication information in the video to be processed.
Based on the same concept, the embodiment of the present application provides a bullet screen display device, which is configured at a client, and for specific implementation of the device, reference may be made to the description of the method embodiment, and repeated details are not repeated. As shown in fig. 9, the apparatus mainly includes:
a fifth obtaining module 901, configured to obtain the bullet screen content marked as the surrounding bullet screen;
a sixth obtaining module 902, configured to obtain play time indication information corresponding to the bullet screen content, and obtain target surrounding information corresponding to the play time indication information, where the target surrounding information includes position information of a bullet screen surrounding center and a bullet screen surrounding size;
and the second processing module 903 is configured to draw the bullet screen content into a three-dimensional surrounding bullet screen for display when the video to be played is played to the play time indication information according to the target surrounding information.
Based on the same concept, an embodiment of the present application further provides an electronic device, as shown in fig. 10, the electronic device mainly includes: a processor 1001, a memory 1002, and a communication bus 1003, wherein the processor 1001 and the memory 1002 communicate with each other via the communication bus 1003. The memory 1002 stores a program executable by the processor 1001, and the processor 1001 executes the program stored in the memory 1002 to implement the following steps:
acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value; acquiring position information of each target object corresponding to the indication information of each target playing time; acquiring position information of a bullet screen surrounding center according to the position information of each target object; acquiring the surrounding size of the bullet screen according to the position information of each target object; taking the position information and the surrounding size of the bullet screen surrounding center as surrounding information corresponding to the indication information of each target playing time in the video to be processed;
alternatively, the first and second liquid crystal display panels may be,
acquiring bullet screen content marked as a surrounding bullet screen; acquiring playing time indication information corresponding to the bullet screen content and target surrounding information corresponding to the playing time indication information, wherein the target surrounding information comprises position information of a bullet screen surrounding center and bullet screen surrounding size; and drawing the bullet screen content into a three-dimensional surrounding bullet screen for displaying when the video to be played is played to the playing time indication information according to the target surrounding information.
The communication bus 1003 mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 1003 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.
The Memory 1002 may include a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. Alternatively, the memory may be at least one storage device located remotely from the aforementioned processor 1001.
The Processor 1001 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., and may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components.
In still another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when run on a computer, causes the computer to execute the surround information generating method described in the above-described embodiment, or the bullet screen display method.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes, etc.), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives), among others.
It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (17)
1. A method for generating surrounding information is applied to a server and comprises the following steps:
acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value;
acquiring position information of each target object corresponding to the target playing time indication information;
acquiring position information of a bullet screen surrounding center according to the position information of each target object;
acquiring the surrounding size of the bullet screen according to the position information of each target object;
and taking the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to each target playing time indication information in the video to be processed.
2. The surround information generating method according to claim 1, wherein before the obtaining of the position information of each target object corresponding to the indication information of each target playing time, the method further comprises:
acquiring a mapping relation between the playing time indication information and the object position information in the video to be processed;
the obtaining of the position information of each target object corresponding to the indication information of each target playing time includes:
and searching the position information of each target object corresponding to the indication information of each target playing time according to the mapping relation.
3. The surround information generating method according to claim 2, wherein the acquiring of the indication information of each target play time includes:
acquiring a mask image corresponding to the playing time indication information, wherein an object area in the mask image is marked by a first color, and a background area is marked by a second color;
acquiring the similarity between the mask images;
taking each mask image with the similarity larger than a similarity threshold value as a target mask image;
and searching each target playing time indication information corresponding to the target mask image.
4. The surround information generating method according to claim 3, wherein before the obtaining of the similarity between the respective mask images, the method further comprises:
acquiring the size of the object region in each mask image;
and screening out the mask image of which the size of the object area is smaller than a preset value.
5. The surround information generating method according to claim 1, wherein the acquiring position information of a bullet screen surround center according to the position information of each of the target objects includes:
determining the variation amplitude of the object position in the target frame sequence according to the position information of each target object;
acquiring a computation strategy of the information of the position of the bullet screen surrounding the center according to the variation amplitude of the position of the object;
and according to the bullet screen surrounding center position information calculation strategy, acquiring the position information of the bullet screen surrounding center.
6. The surround information generating method according to claim 5, wherein the obtaining of the calculation policy of the position information of the bullet screen surround center according to the variation width of the position of the object includes:
comparing the variation amplitude of the object position with a preset variation amplitude value;
if the variation amplitude of the object position is smaller than or equal to the preset variation amplitude value, the calculation strategy of the bullet screen surrounding center position information is as follows: acquiring the position information of the center point of each object in the target frame sequence according to the position information of each target object, and determining a bullet screen surrounding center and the position information of the bullet screen surrounding center according to the position information of the center point of each object;
if the variation amplitude of the object position is larger than the preset variation amplitude value, the calculation strategy of the bullet screen surrounding center position information is as follows: and acquiring the position information of the center point of each object in the target frame sequence according to the position information of each target object, and taking the position information of the center point of each object as the position information of the surrounding center of each bullet screen.
7. A surround information generating method according to any one of claims 1 to 6, wherein the acquiring, according to the respective target object position information, a bullet screen surround size includes:
acquiring object width information in the target frame sequence according to the position information of each target object;
acquiring the surrounding radius of the bullet screen according to the width information of the object;
and taking the bullet screen surrounding radius as the bullet screen surrounding size.
8. A bullet screen display method is applied to a client and comprises the following steps:
acquiring bullet screen content marked as a surrounding bullet screen;
acquiring playing time indication information corresponding to the bullet screen content, and acquiring target surrounding information corresponding to the playing time indication information, wherein the target surrounding information comprises position information of a bullet screen surrounding center and bullet screen surrounding size;
and drawing the bullet screen content into a three-dimensional surrounding bullet screen for displaying when the video to be played is played to the playing time indication information according to the target surrounding information.
9. The bullet screen display method according to claim 8, wherein before the obtaining of the target surround information corresponding to the play time indication information, the method further comprises:
acquiring a video playing request, wherein the video playing request comprises an identifier of the video to be played;
and acquiring surrounding information corresponding to the identifier of the video to be played, wherein a corresponding relation exists between the surrounding information and target playing time indication information.
10. The bullet screen display method according to claim 8, wherein the stereoscopic surrounding type bullet screen is in a three-dimensional circular ring shape.
11. The bullet screen display method according to claim 10, wherein said stereoscopic surrounding type bullet screen has a shadow effect.
12. The bullet screen display method according to claim 9, wherein before the obtaining of the surrounding information corresponding to the identifier of the video to be played, the method further comprises:
sending a surrounding information query request to a server, wherein the surrounding information query request comprises an identifier of the video to be played;
and acquiring feedback information sent by the server, wherein the feedback information is used for indicating that the video to be played contains surrounding information.
13. The bullet screen display method according to claim 9, wherein before the acquiring bullet screen content marked as a surrounding bullet screen, the method further comprises:
and when the video to be played is played to the target playing time indication information, displaying a guide bullet screen, wherein the guide bullet screen is used for prompting a target figure surrounded by surrounding information corresponding to the target playing time indication information.
14. A wraparound information generating device, which is arranged in a server, includes:
the first acquisition module is used for acquiring indication information of each target playing time, wherein each indication information of the target playing time corresponds to a target frame sequence in a video to be processed, and the variation amplitude of the size of an object in the target frame sequence is smaller than a threshold value;
the second acquisition module is used for acquiring the position information of each target object corresponding to the indication information of each target playing time;
the third acquisition module is used for acquiring the position information of the bullet screen surrounding center according to the position information of each target object;
the fourth acquisition module is used for acquiring the surrounding size of the bullet screen according to the position information of each target object;
and the first processing module is used for taking the position information of the bullet screen surrounding center and the bullet screen surrounding size as surrounding information corresponding to each target playing time indication information in the video to be processed.
15. A bullet screen display device, which is configured at a client, comprises:
the fifth acquisition module is used for acquiring the bullet screen content marked as the surrounding bullet screen;
a sixth obtaining module, configured to obtain play time indication information corresponding to the bullet screen content, and obtain target surrounding information corresponding to the play time indication information, where the target surrounding information includes position information of a bullet screen surrounding center and a bullet screen surrounding size;
and the second processing module is used for drawing the bullet screen content into a three-dimensional surrounding bullet screen for displaying when the video to be played is played to the playing time indication information according to the target surrounding information.
16. An electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus; the memory for storing a computer program; the processor is configured to execute the program stored in the memory, and implement the surround information generating method according to any one of claims 1 to 7, or implement the bullet screen display method according to any one of claims 8 to 13.
17. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the surround information generating method according to any one of claims 1 to 7, or implements the bullet screen displaying method according to any one of claims 8 to 13.
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