CN106792100B - Video bullet screen display method and device - Google Patents
Video bullet screen display method and device Download PDFInfo
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- CN106792100B CN106792100B CN201611270062.XA CN201611270062A CN106792100B CN 106792100 B CN106792100 B CN 106792100B CN 201611270062 A CN201611270062 A CN 201611270062A CN 106792100 B CN106792100 B CN 106792100B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
- H04N21/4756—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for rating content, e.g. scoring a recommended movie
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
Abstract
The embodiment of the invention provides a video barrage display method and a device, wherein the method comprises the following steps: acquiring video content of an original video medium, wherein the video content at least comprises a video object; determining a target bullet screen display area associated with the video object according to the video content and the video object; and acquiring the content of the bullet screen corresponding to the video object, and displaying the content of the bullet screen in the target bullet screen display area. By applying the embodiment of the invention, the bullet screen content can be displayed at the video display content in a targeted manner, the attractiveness of the bullet screen is improved, the bullet screen display and the video content are interacted, and the user experience is improved.
Description
Technical Field
The invention relates to the field of multimedia playing, in particular to a video barrage display method and device.
Background
With the rapid development of multimedia technology, bullet screens have been more and more noticed by people. From the playing of website videos to cinemas to large activities, barrage has become one of the important criteria for measuring whether a platform party has era vitality.
The bullet screen refers to comment characters drifting in a video player, and the comment characters are formed by allowing viewers watching the bullet screen to watch published comments, so that the bullet screen propagation phenomenon is a typical group propagation case.
However, the existing bullet screen floats in the video area in a full screen mode or needs independent split screen display, and a user can display some meaningless bullet screens on the video by sending the bullet screen at any time, so that the displayed content on the video is disordered and the user is influenced to watch the video content.
Disclosure of Invention
The embodiment of the invention aims to provide a video barrage display method and a video barrage display device, which aim to display barrage content at a video display content position in a targeted manner, improve the attractiveness of a barrage, enable the display of the barrage to be interactive with the video content, and improve user experience.
In order to achieve the above object, an embodiment of the present invention discloses a video bullet screen display method, including:
acquiring video content of an original video medium, wherein the video content at least comprises a video object;
determining a target bullet screen display area associated with the video object according to the video content and the video object;
and acquiring the content of the bullet screen corresponding to the video object, and displaying the content of the bullet screen in the target bullet screen display area.
Optionally, the determining, according to the video content and the video object, a target bullet screen display area associated with the video object includes:
decoding the video content to obtain a first video frame stream;
analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object;
and screening the original bullet screen display area, and determining a target bullet screen display area associated with the video object.
Optionally, the parsing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object includes:
extracting contours corresponding to the video objects in each frame of image of the first video frame stream, wherein the contours comprise foreground object contours and background image contours;
and monitoring the contour, and determining the area size of the contour and the corresponding time length of the contour appearing in the frame image of the video frame stream.
Optionally, the screening the original bullet screen display area and determining a target bullet screen display area associated with the video object includes:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, filtering the time length corresponding to the video object to be lower than a first preset time and the area corresponding to the video object to be smaller than a first preset area, and determining a target bullet screen display area associated with the video object; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, splitting the time length corresponding to the video object to be higher than a second preset time and the area corresponding to the video object to be larger than a second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time;
and determining a bullet screen display area corresponding to the target preset area and the target preset time as a target bullet screen display area, and determining a target bullet screen display area associated with the video object.
Optionally, before the obtaining of the content of the bullet screen corresponding to the video object and the displaying of the content of the bullet screen in the target bullet screen display area, the method further includes:
acquiring and generating a second video frame stream according to the content of the bullet screen to be displayed and the video content of the original video media, wherein the second video frame stream comprises: the bullet screen picture layer of the content of the display video and the content of bullet screen, the content of the bullet screen that waits to show includes: the content of a preset bullet screen corresponding to the video object and the content of a bullet screen sent by a user are included, and the bullet screen layer comprises the target bullet screen display area;
correspondingly, the acquiring the content of the bullet screen corresponding to the video object and displaying the content of the bullet screen in the target bullet screen display area includes:
acquiring the content of a preset barrage corresponding to the video object in the second video frame stream;
decoding the content of a preset bullet screen corresponding to the video object in the second video frame stream to obtain a bullet screen layer of the content of the preset bullet screen corresponding to the video object;
and displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer.
Optionally, the obtaining content of a bullet screen corresponding to the video object and displaying the content of the bullet screen in the target bullet screen display area includes:
after receiving an instruction of a bullet screen sent by a user at the video object, acquiring the content of the bullet screen sent by the user;
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area.
Optionally, after the second video frame stream is obtained and generated according to the content of the bullet screen to be displayed and the video content of the original video media, the method further includes:
acquiring the display attribute of a preset barrage corresponding to the video object, and adding the display attribute of the preset barrage to a second video frame stream;
correspondingly, when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area includes:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area according to the display attribute of the preset bullet screen corresponding to the video object.
Optionally, the obtaining of the display attribute of the preset barrage corresponding to the video object includes:
and acquiring a first color attribute of the video object corresponding to the target bullet screen display area, and setting the color attribute of the target bullet screen display area as a second color attribute according to the first color attribute, wherein the first color attribute is different from the second color attribute.
Optionally, the obtaining of the content of the barrage corresponding to the video object and the displaying of the content of the barrage to the target barrage display area further include:
acquiring the content of a preset bullet screen corresponding to the video object, and displaying the content in a first area of the target bullet screen display area;
correspondingly, the displaying the content of the preset barrage to the target barrage display area includes:
and displaying the content of the bullet screen sent by the user to a reserved area except the first area in the target bullet screen display area.
The embodiment of the invention also discloses a video barrage display device, which comprises:
the video content acquisition module is used for acquiring video content of an original video medium, wherein the video content at least comprises a video object;
the target bullet screen display area determining module is used for determining a target bullet screen display area associated with the video object according to the video content and the video object;
and the bullet screen display module is used for displaying the acquired content of the bullet screen corresponding to the video object into the target bullet screen display area.
Optionally, the target bullet screen display area determining module includes:
the first decoding submodule is used for decoding the video content to obtain a first video frame stream;
the bullet screen area detection submodule is used for analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object;
and the bullet screen area analysis submodule is used for screening the original bullet screen display area and determining a target bullet screen display area associated with the video object.
Optionally, the bullet screen region detection submodule is further configured to:
extracting contours corresponding to the video objects in each frame of image of the first video frame stream, wherein the contours comprise foreground object contours and background image contours;
and monitoring the contour, and determining the area size of the contour and the corresponding time length of the contour appearing in the frame image of the video frame stream.
Optionally, the bullet screen area analysis submodule is further configured to:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, filtering the time length corresponding to the video object to be lower than a first preset time and the area corresponding to the video object to be smaller than a first preset area, and determining a target bullet screen display area associated with the video object; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, splitting the time length corresponding to the video object to be higher than a second preset time and the area corresponding to the video object to be larger than a second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time;
and determining the bullet screen display area corresponding to the target preset area and the target preset time as a target bullet screen display area.
Optionally, the apparatus further comprises:
the barrage content presetting module is used for acquiring the content of a barrage to be displayed and the video content of the original video media;
the encoding module is configured to encode content of a bullet screen to be displayed and video content of the original video media, and generate a second video frame stream, where the second video frame stream includes: the bullet screen picture layer of the content of the display video and the content of bullet screen, the content of the bullet screen that waits to show includes: the content of a preset bullet screen corresponding to the video object and the content of a bullet screen sent by a user are included, and the bullet screen layer comprises the target bullet screen display area;
correspondingly, the bullet screen display module includes:
the video and barrage content acquisition submodule is used for acquiring the content of a preset barrage corresponding to the video object in the second video frame stream;
a second decoding submodule for decoding the second stream of video frames;
a bullet screen image layer separation submodule, configured to separate a bullet screen image layer of content of a preset bullet screen corresponding to the video object from the decoded second video frame stream, where the content of the preset bullet screen corresponds to the video object;
and the bullet screen content display submodule is used for displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer.
Optionally, the bullet screen display module further includes:
the user barrage sending submodule is used for receiving a barrage command sent by a user at the video object and then acquiring the content of the barrage sent by the user;
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area.
Optionally, the apparatus further comprises:
the barrage attribute acquisition module is used for acquiring the display attribute of a preset barrage corresponding to the video object and adding the display attribute of the preset barrage to a second video frame stream;
correspondingly, the user barrage sending submodule is further configured to:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area according to the display attribute of the preset bullet screen corresponding to the video object.
According to the video content and the video object of the original video media, the target bullet screen display area associated with the video object is determined, and the content of the bullet screen corresponding to the video object is acquired and displayed in the target bullet screen display area. The embodiment of the invention can realize the targeted display of the bullet screen content at the video display content, improve the aesthetic property of the bullet screen, and improve the user experience by the interaction between the bullet screen display and the video content. Of course, it is not necessary for any product or method of practicing the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a basic flowchart of a video bullet screen display method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a video bullet screen display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a module for determining a target bullet screen display area of a video bullet screen display device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bullet screen display module of a video bullet screen display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the development of digital image processing and video target tracking technologies, the theory and technology of extracting target objects from digital video files are mature at present. In addition, a large number of static or slowly-moving dynamic objects exist in the video, such as backgrounds of video images, clothes of characters in long-shot scenes and the like, the objects can be extracted through image processing and target tracking technologies to serve as targets for bullet screen display, attractiveness and interestingness of bullet screen display can be improved, bullet screen grading of users or bullet screen advertisement putting can be performed in a targeted mode, and commercial value of bullet screens is improved. Meanwhile, in the feasibility aspect, the target bullet screen display area is lifted and placed in a video offline transcoding link, and the bullet screen display area and bullet screen display attribute information are recorded in a video file in advance at a server side, so that the online playing efficiency cannot be influenced by calculation-intensive image and video processing operation. Based on this, the embodiment of the invention provides a method and a device for displaying a video barrage, which specifically comprise the following processes:
referring to fig. 1, fig. 1 is a basic flowchart of a video bullet screen display method according to an embodiment of the present invention, including the following steps:
s101, obtaining video content of an original video medium, wherein the video content at least comprises a video object.
Specifically, the method comprises the steps of obtaining video content of an original video medium, wherein the video content comprises a video object, a video subtitle and the like.
And S102, determining a target bullet screen display area associated with the video object according to the video content and the video object.
Specifically, a video picture area suitable for bullet screen display, that is, a target bullet screen display area in the present invention, is extracted and tracked by a target tracking technology of motion detection, and corresponding information is stored in a bullet screen layer as metadata. Here, the corresponding information may include target bullet screen region information, content of a preset bullet screen, display attribute information of the preset bullet screen, and the like, and in addition, if the target bullet screen region is only used for displaying the content of the bullet screen preset by the system, the content of the preset bullet screen may also be stored in the bullet screen layer as an element data. The metadata is mainly information describing data attributes, and is used to support functions such as indicating storage locations, history data, resource search, file records, and the like. The metadata here is control information and data stored in a video file that controls the playing and display of a video. Such information data is stored in a video file during transcoding, and needs to be extracted by a corresponding decoder. The target barrage display area and the attribute information are recorded into a video file in the form of metadata (which can be understood as a barrage layer here), so that the barrage information synchronized with the video content can be conveniently acquired when the player plays the video. In addition to the storage form of the metadata, the time, the control information and the data can be stored in a separate file, when the video is played, a decoder decodes the video, the control information is extracted from another separate file by software, and then the two files are synthesized according to the time point.
The target tracking technology based on motion detection mainly realizes the detection and tracking of a target according to the difference between the motion of the target and the motion of a background. The target tracking algorithm based on motion detection finds the area where the target exists by detecting different motions of the target and the background in the sequence image, and realizes tracking. The target tracking algorithm based on motion detection does not need mode matching between frames, does not need to transmit motion parameters of a target between the frames, and only needs to highlight the difference between the target and a non-target in a time domain or a space domain.
In addition, the target tracking algorithm based on motion detection has the capability of detecting a plurality of targets, and can be used for multi-target detection and tracking. The existing target tracking based on contrast analysis and target tracking based on matching both process single-frame images, and the tracking method based on matching needs to transmit target information between frames.
Meanwhile, the target bullet screen display area associated with the video object is determined according to the video content and the video object, so that the association between the content of the bullet screen and the content of the video object is ensured, and the display effect of the bullet screen is improved.
S103, acquiring the content of the bullet screen corresponding to the video object, and displaying the content of the bullet screen in a target bullet screen display area.
Specifically, the content of the bullet screen corresponding to the video object is acquired, and the content of the bullet screen is displayed in the target bullet screen display area. The content of the barrage corresponding to the video object may include: the content of the preset barrage corresponding to the video object, the content of the barrage sent by the user, and the like, wherein the content of the preset barrage corresponding to the video object may be the content of the barrage input by the user before the video content, or the content of the barrage may be preset by the video service provider in some barrage areas to guide the barrage topic of the user, improve the interest of the video, or serve as a barrage advertisement, and the like. The bullet screen content conditions that can be displayed in all target bullet screen display areas are all within the protection scope of the embodiment of the present invention, which is not exemplified herein. The acquired content of the bullet screen corresponding to the video object is displayed in the target bullet screen display area, the bullet screen content is guaranteed to be displayed on the corresponding video object in a targeted mode, interaction between the bullet screen display and the video content is achieved, and therefore user experience is improved.
Therefore, according to the video barrage display method provided by the embodiment of the invention, firstly, the video content of the original video media is obtained; then, according to the video content and the video object, determining a target bullet screen display area associated with the video object; and finally, displaying the acquired content of the bullet screen corresponding to the video object in a target bullet screen display area. By the video barrage display method provided by the embodiment of the invention, the barrage content can be displayed at the video display content in a targeted manner, the attractiveness of the barrage is improved, the display of the barrage is interacted with the video content, and the user experience is improved.
In the embodiment of the present invention, determining a target bullet screen display area associated with a video object according to the video content and the video object includes:
the video content is decoded to obtain a first stream of video frames.
Specifically, the video content of the original video media is decoded by a video decoder, which is a program (video player) or device that performs a restore decoding operation on the encoded digital video, to obtain a first video frame stream. Here, the video content may also be referred to as a stream of video frames, since the video content is composed of an ordered series of video frames (i.e., a single still picture).
And analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object.
Since the first video frame stream obtained after the video content is decoded by the video decoder includes video frames of all the video content, to extract the original bullet screen display area associated with the video object in the video content, the video frame (i.e., the first video frame stream) corresponding to the video object needs to be parsed, and then the original bullet screen display area associated with the video object can be obtained.
And screening the original bullet screen display area, and determining a target bullet screen display area associated with the video object.
Because the original barrage display area that acquires includes the barrage display area that all video objects correspond, moreover, some video objects do not need to be as the barrage display area, perhaps some video objects do not have actual meaning as the barrage display area, not only influence the display effect of barrage, influence in addition and watch the shadow and experience, filter through the screening, forbid in influencing the video key region of watching the effect and show the barrage to let the user improve the comfort level that sees the shadow and experience when enjoying the barrage service.
Parsing a video object in a first stream of video frames to obtain an original bullet screen display area associated with the video object, including:
extracting the corresponding outline of a video object in each frame of image of a first video frame stream, wherein the outline comprises a foreground object outline and a background image outline;
specifically, extracting the contours corresponding to the video objects in each frame of image of the first video frame stream is a contour-based object tracking method, which provides more accurate shape description since the complex-shaped objects are difficult to describe with simple geometric shapes. The main idea of the target tracking method is to find the target area of the current frame by using the target model established by the previous frame. The model may be a color histogram, an edge, or a contour of the target region. The contour-based target tracking method can be roughly divided into shape matching and contour tracking, wherein the former searches for the characteristics of a target in a current frame, and the latter deduces the position of an initial contour in the current frame through a state space model or a direct minimum energy function. The invention extracts the outline in each frame of image to extract the area displayed by the bullet screen.
And monitoring the contour, and determining the area size of the contour and the corresponding time length of the contour appearing in the frame image of the video frame stream.
Firstly, the contour corresponding to the extracted video object is tracked and detected between adjacent frames, and the survival time and the regional motion trail of the target object between the continuous frames of the video object are determined. Here, the lifetime of the target object refers to a time length of the video object corresponding to the continuous frame image, the continuous frame refers to a frame corresponding to the continuous video object, and unlike the current frame, the current frame refers to only one frame corresponding to the current time of the video object, and the region motion trajectory refers to the contour of the video object.
Secondly, calculating the similarity of the outlines of the video objects among the discontinuous frames with different motion tracks, combining the similar area tracks of the adjacent time periods, generating the survival time and the area motion track of the target object in the video transition environment, and taking the survival time and the area motion track as the original bullet screen area.
And finally, marking the obtained original bullet screen display area by using methods such as position coordinates, gray values, colors and the like, and ensuring that each area can be uniquely identified by subsequent processing.
In the embodiment of the present invention, screening an original bullet screen display area and determining a target bullet screen display area associated with a video object includes:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length of the outline appearing in the frame image of the video frame stream, the time length corresponding to the filtered video object is shorter than a first preset time, and the area corresponding to the filtered video object is smaller than a first preset area, and a target bullet screen display area associated with the video object is determined; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the frame image of the video frame stream in which the outline appears, splitting the time length corresponding to the video object to be longer than second preset time and the area corresponding to the video object to be longer than the second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time;
and determining the bullet screen display area corresponding to the target preset area and the target preset time as a target bullet screen display area.
The obtained original bullet screen display area contains the bullet screen display areas corresponding to all the extracted video objects, however, the area of the bullet screen display area corresponding to some video objects is too small or too large, the time length of the bullet screen display area corresponding to some video objects is too long or too short, and the like, so that the original bullet screen display area needs to be filtered, and the final target bullet screen area can be obtained.
Here, two factors, time and space, are mainly considered, and for a region with large time and space, the region can be filtered, and a specific filtering method includes: the time factor is judged according to a formula (the survival time of the area is longer than the time for reading the bullet screen by people plus the basic time), wherein the basic time is a constant set by a system, generally 2-10 seconds, can be set according to the actual situation, and is filtered for bullet screen display areas which do not accord with the conditions of the formula. The spatial factor is determined according to a formula (the area of the area is larger than the average bullet screen length of the system multiplied by an attribute coefficient plus a basic area), wherein the attribute coefficient is related to the attributes of the bullet screen, such as font size, picture size and the like, the basic area is a constant set by the system and related to the overall attributes of the system and the video, and the bullet screen display area which does not meet the conditions of the formula is filtered.
In addition, for a region with larger time and space, the region can be split, and a specific splitting method is split according to a formula (the number of region time splits is equal to the region survival time divided by (reading time plus basic time)), and a formula (the number of region space splits is equal to the region area divided by (average bullet screen length multiplied by attribute coefficient plus basic area)).
The specific process is as follows: on one hand, the area with the time length lower than the first preset time corresponding to the video object is filtered through analysis of the time dimension, the area with the time length higher than the second preset time corresponding to the video object is split, and each bullet screen in the area is ensured to have proper display time; on the other hand, from the analysis of space dimension, the area that the video object of filtration corresponds is less than the region of first predetermined area, and the area that the video object of reasonable split corresponds is greater than the region of second predetermined area, guarantees to improve the utilization ratio in bullet screen display area as far as under the prerequisite that does not influence bullet screen normal display.
In this embodiment of the present invention, before obtaining the content of the bullet screen corresponding to the video object and displaying the content of the bullet screen in the target bullet screen display area, the method further includes:
acquiring and generating a second video frame stream according to the content of the bullet screen to be displayed and the video content of the original video media, wherein the second video frame stream comprises: show the bullet screen picture layer of the content of video and bullet screen, the content of the bullet screen that waits to show includes: presetting the content of a bullet screen corresponding to the video object and the content of the bullet screen sent by a user, wherein a bullet screen layer comprises a target bullet screen display area;
the content of the bullet screen displayed in the screen may include the following three parts: the bullet screen content sent by the current user at the moment, the bullet screen content sent by other users before, and the bullet screen content preset by the system. The content of the bullet screen sent by the current user can be immediately displayed and stored in the back-end database, and the bullet screen data sent by the previous user can be retrieved when the video is played next time. The preset bullet screen content of the video service provider is the bullet screen content preset by the system so as to guide the bullet screen topic of the user, improve the interestingness of the video or serve as a bullet screen advertisement. In addition, based on the interactive mechanism of the video content and the barrage, the barrage advertisement related to the video content can be released on the barrage layer, so that the barrage advertisement can be accurately displayed on the corresponding object of the video content, and the accuracy and pertinence of advertisement display are improved. Generally, the method is combined with a video playing system, an advertisement putting system and a user management system, and is a new way for improving the bullet screen using experience of users and improving the network video service quality and the company income.
Correspondingly, the method for acquiring the content of the bullet screen corresponding to the video object and displaying the content of the bullet screen in the target bullet screen display area comprises the following steps:
acquiring the content of a preset barrage corresponding to the video object in the second video frame stream;
decoding the content of a preset bullet screen corresponding to the video object in the second video frame stream to obtain a bullet screen layer of the content of the preset bullet screen corresponding to the video object;
and displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer.
Specifically, firstly, the content of a preset bullet screen corresponding to a video object is obtained, and a second video frame stream is generated, wherein the second video frame stream contains the content of the preset bullet screen corresponding to the video object;
secondly, decoding the content of the preset barrage corresponding to the video object in the second video frame stream through a video decoder to obtain a barrage layer of the content of the preset barrage corresponding to the video object;
and finally, displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer so as to realize synchronous display of the bullet screen and the video content in the specified area.
In a possible implementation manner of the embodiment of the present invention, acquiring content of a bullet screen corresponding to a video object, and displaying the content of the bullet screen in a target bullet screen display area includes:
after receiving a barrage instruction sent by a user at a video object, acquiring the content of the barrage sent by the user; if the user triggers the function of sending the bullet screen, the area which can be currently used for the user to send the bullet screen is selected from the bullet screen layer and displayed on the video content, then the user selects one area, edits the bullet screen content, clicks to send, and then the corresponding bullet screen content can be sent in the selected area.
In addition, the user is not necessarily required to select the display area. If the user does not select a display area, the system automatically assigns it. Here, the instruction of the bullet screen may be preset at the video object, or may be preset at a certain position on the video content, for example, a bullet screen switch and a bullet screen sending button are set at the playing end, the user can input the bullet screen data by switching when clicking the bullet screen, and the bullet screen data can be sent by clicking the bullet screen sending button, which is specifically set according to actual needs. By the method, the limitation that the user cannot control the position of the bullet screen in the prior art is broken through, so that the user can send the bullet screen in the interested content area, and a novel bullet screen interaction mode is provided.
And when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen into the target bullet screen display area.
Specifically, whether the barrage content sent by the user is associated with the video object is judged, and if so, the barrage content is displayed in a barrage display area at the video object; and if not, not displaying the bullet screen content.
In the embodiment of the invention, if the barrage instruction sent by the user is at the video object, whether the content of the barrage sent by the user is associated with the video object is judged, and the associated content of the barrage is displayed in the target barrage display area; if the barrage command sent by the user is at a certain position on the video content, the system can automatically select a proper target barrage display area for the barrage command according to the barrage content input by the user. By the method, the user can select the area for sending the bullet screen, and the interestingness of the bullet screen is improved.
In the embodiment of the present invention, after the second video frame stream is obtained and generated according to the content of the bullet screen to be displayed and the video content of the original video media, the method further includes:
acquiring the display attribute of a preset bullet screen corresponding to the video object, and adding the display attribute of the preset bullet screen to a second video frame stream;
specifically, the display attribute of the bullet screen is preset according to the video content of each frame of the video object corresponding to the target bullet screen display area, and the display attribute of the preset bullet screen is added to the second video frame stream. Wherein, the display attribute of predetermineeing the bullet screen indicates the attribute information who sets up for each display area through bullet screen picture layer, the display attribute of predetermineeing the bullet screen includes the typeface of predetermineeing characters bullet screen, attributes such as word size, colour and the size of bullet screen picture, attributes such as zoom, like this, can avoid bullet screen colour, typeface etc. and video content to fuse and see clearly bullet screen content, thereby guarantee that the display effect of bullet screen does not receive video content's influence, thereby, the display effect of bullet screen has been promoted.
Correspondingly, when the content of the bullet screen sent by the user is associated with the video object, the displaying of the content of the bullet screen in the target bullet screen display area comprises the following steps:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in a target bullet screen display area according to the display attribute of the corresponding preset bullet screen at the video object.
Specifically, whether the content of the bullet screen sent by the user is associated with the video object is judged, and if so, the content of the bullet screen is displayed in a target bullet screen display area according to the corresponding preset display attribute of the bullet screen at the video object; and if not, not sending the content of the bullet screen sent by the user. By the method, the interaction between the bullet screen content and the video object is realized, and the pertinence of bullet screen display is improved.
Wherein, the display attribute of the preset barrage corresponding to the video object is obtained, including:
the method comprises the steps of obtaining a first color attribute of a video object corresponding to a target bullet screen display area, setting the color attribute of the target bullet screen display area as a second color attribute according to the first color attribute, wherein the first color attribute is different from the second color attribute.
Specifically, acquire the first color attribute that the video object that target barrage display region corresponds earlier, set up the second color attribute of target barrage display region according to first color attribute again, here, first color attribute is different with second color attribute, the color attribute that video object corresponds promptly is different with the color attribute of target barrage display region, can avoid barrage color and video content to fuse and see clearly the barrage content like this, thereby guarantee that the display effect of barrage does not receive video content's influence, the display effect of barrage has been promoted.
In an optional embodiment of the present invention, the content of the barrage corresponding to the video object is obtained, and the content of the barrage is displayed in the target barrage display area, and the method further includes:
acquiring the content of a preset bullet screen corresponding to the video object, and displaying the content in a first area of a target bullet screen display area;
firstly, acquiring the content of a preset barrage corresponding to a video object, wherein the content of the preset barrage comprises barrages sent by other users before, barrages preset by a system and the like; then, the content of the preset bullet screen is displayed in the first area of the target bullet screen display area.
Correspondingly, the content of the preset barrage is displayed in the target barrage display area, and the method comprises the following steps:
and displaying the content of the bullet screen sent by the user to a reserved area except the first area in the target bullet screen display area.
Here, the reserved area other than the first area is a first area in which the content of the preset bullet screen is displayed differently. The different areas are set in the invention to distinguish the preset bullet screen content and the bullet screen content sent by the user and displayed in the different areas of the target bullet screen display area, thereby being beneficial to the graded management of the bullet screen and the precise bullet screen advertisement delivery.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a video bullet screen display device according to an embodiment of the present invention, including the following modules:
a video content obtaining module 201, configured to obtain video content of an original video media, where the video content at least includes a video object;
a target bullet screen display area determining module 202, configured to determine a target bullet screen display area associated with the video object according to the video content and the video object;
and the bullet screen display module 203 is configured to display the acquired content of the bullet screen corresponding to the video object in the target bullet screen display area.
Further, referring to fig. 3, fig. 3 is a schematic structural diagram of a module for determining a target bullet screen display area of a video bullet screen display device according to an embodiment of the present invention.
The target bullet screen display area determining module 202 includes:
a first decoding submodule 301, configured to decode video content to obtain a first video frame stream;
the bullet screen area detection submodule 302 is configured to analyze a video object in the first video frame stream to obtain an original bullet screen display area associated with the video object;
and the bullet screen area analysis submodule 303 is configured to screen an original bullet screen display area and determine a target bullet screen display area associated with the video object.
The bullet screen area detection submodule 302 is further configured to:
extracting the corresponding outline of a video object in each frame of image of a first video frame stream, wherein the outline comprises a foreground object outline and a background image outline;
and monitoring the contour, and determining the area size of the contour and the corresponding time length of the contour appearing in the frame image of the video frame stream.
Bullet screen area analysis submodule 303, further configured to:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length of the outline appearing in the frame image of the video frame stream, the time length corresponding to the filtered video object is shorter than a first preset time, and the area corresponding to the filtered video object is smaller than a first preset area, and a target bullet screen display area associated with the video object is determined; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length of the outline appearing in the frame image of the video frame stream, splitting the time length corresponding to the video object to be higher than second preset time and the area corresponding to the video object to be larger than the second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time;
and determining the bullet screen display area corresponding to the target preset area and the target preset time as the target bullet screen display area.
Further, a video bullet screen display device further includes:
a bullet screen content presetting module 304, configured to obtain content of a bullet screen to be displayed and video content of the original video media; specifically, the preset bullet screen content corresponding to the video object is obtained through the preset bullet screen content corresponding to the artificially preset video object.
The encoding module 306 is configured to encode the content of the bullet screen to be displayed and the video content of the original video media, and generate a second video frame stream, where the second video frame stream includes: show the bullet screen picture layer of the content of video and bullet screen, the content of the bullet screen that waits to show includes: the method comprises the steps that the content of a preset bullet screen corresponding to a video object and the content of a bullet screen sent by a user are preset, and a bullet screen layer comprises a target bullet screen display area.
Further, a video bullet screen display device further includes:
the bullet screen attribute acquiring module 305 is configured to acquire a display attribute of a preset bullet screen corresponding to the video object, and add the display attribute of the preset bullet screen to the second video frame stream, where the bullet screen attribute acquiring module may also be referred to as a bullet screen attribute setting module.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a bullet screen display module of a video bullet screen display device according to an embodiment of the present invention.
Accordingly, the bullet screen display module 203 includes:
the video and barrage content obtaining submodule 401 is configured to obtain content of a preset barrage corresponding to the video object in the second video frame stream;
a second decoding submodule 402 for decoding the second stream of video frames;
a bullet screen image layer separation submodule 403, configured to separate a bullet screen image layer of the content of the preset bullet screen corresponding to the video object from the decoded second video frame stream, where the content of the preset bullet screen corresponding to the video object is obtained;
here, the barrage layer of the content of the preset barrage corresponding to the video object is obtained by separation, and the content of the preset barrage corresponding to the video object is included in the visible barrage layer, that is, the content of the barrage is obtained at the same time, which may be referred to as: the bullet screen content acquiring module 405 is configured to acquire preset bullet screen content corresponding to the video object, and store the bullet screen content in the bullet screen layer, specifically, acquire the preset bullet screen content corresponding to the video object through the preset bullet screen content corresponding to the artificially preset video object.
And the bullet screen content display submodule 406 is configured to display the content of the bullet screen in the target bullet screen display area of the bullet screen map layer.
Further, the bullet screen display module 203 further includes:
the user barrage sending submodule 404 is configured to obtain content of a barrage sent by a user after receiving an instruction of the barrage sent by the user at a video object;
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen into the target bullet screen display area.
Further, the user bullet screen sending submodule 404 is further configured to:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in a target bullet screen display area according to the display attribute of the corresponding preset bullet screen at the video object. Therefore, the video barrage display device provided by the embodiment of the invention acquires the video content of the original video media through the video content acquisition module; the target bullet screen display area determining module determines a target bullet screen display area associated with the video object according to the video content and the video object; and the bullet screen display module displays the acquired content of the bullet screen corresponding to the video object to a target bullet screen display area. The video barrage display device provided by the embodiment of the invention can display barrage content at the video display content in a targeted manner, improves the attractiveness of the barrage, and improves the user experience by interaction between the display of the barrage and the video content.
It is noted that, herein, relational terms such as first and second, and the like may be 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.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A video bullet screen display method is characterized by comprising the following steps:
acquiring video content of an original video medium, wherein the video content at least comprises a video object;
determining a target bullet screen display area associated with the video object according to the video content and the video object;
acquiring the content of a bullet screen corresponding to the video object, and displaying the content of the bullet screen in the target bullet screen display area;
the determining a target bullet screen display area associated with the video object according to the video content and the video object comprises:
decoding the video content to obtain a first video frame stream;
analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object, wherein the original bullet screen display area is determined by the survival time and the area motion track of a target object in a video transition environment;
screening the original bullet screen display area, and determining a target bullet screen display area associated with the video object;
the analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object includes:
extracting contours corresponding to the video objects in each frame of image of the first video frame stream, wherein the contours comprise foreground object contours and background image contours;
monitoring the contour, and determining the area size of the contour and the time length of the contour corresponding to the frame image of the video frame stream;
the screening the original bullet screen display area and determining a target bullet screen display area associated with the video object comprises:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, filtering the time length corresponding to the video object to be lower than a first preset time and the area corresponding to the video object to be smaller than a first preset area, and determining a target bullet screen display area associated with the video object; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, splitting the time length corresponding to the video object to be higher than a second preset time and the area corresponding to the video object to be larger than a second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time; and determining the bullet screen display area corresponding to the target preset area and the target preset time as a target bullet screen display area.
2. The method of claim 1, wherein before the obtaining of the content of the bullet screen corresponding to the video object and the displaying of the content of the bullet screen in the target bullet screen display area, the method further comprises:
acquiring and generating a second video frame stream according to the content of the bullet screen to be displayed and the video content of the original video media, wherein the second video frame stream comprises: the bullet screen picture layer of the content of the display video and the content of bullet screen, the content of the bullet screen that waits to show includes: the content of a preset bullet screen corresponding to the video object and the content of a bullet screen sent by a user are included, and the bullet screen layer comprises the target bullet screen display area;
correspondingly, the acquiring the content of the bullet screen corresponding to the video object and displaying the content of the bullet screen in the target bullet screen display area includes:
acquiring the content of a preset barrage corresponding to the video object in the second video frame stream;
decoding the content of a preset bullet screen corresponding to the video object in the second video frame stream to obtain a bullet screen layer of the content of the preset bullet screen corresponding to the video object;
and displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer.
3. The method of claim 2, wherein the obtaining of the content of the bullet screen corresponding to the video object and the displaying of the content of the bullet screen in the target bullet screen display area comprise:
after receiving an instruction of a bullet screen sent by a user at the video object, acquiring the content of the bullet screen sent by the user;
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area.
4. The method of claim 3, wherein after obtaining and generating the second stream of video frames based on the content of the bullet screen to be displayed and the video content of the original video media, the method further comprises:
acquiring the display attribute of a preset barrage corresponding to the video object, and adding the display attribute of the preset barrage to a second video frame stream;
correspondingly, when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area includes:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area according to the display attribute of the preset bullet screen corresponding to the video object.
5. A video bullet screen display device, characterized in that said device comprises:
the video content acquisition module is used for acquiring video content of an original video medium, wherein the video content at least comprises a video object;
the target bullet screen display area determining module is used for determining a target bullet screen display area associated with the video object according to the video content and the video object;
the bullet screen display module is used for displaying the acquired content of the bullet screen corresponding to the video object into the target bullet screen display area;
the module for determining the display area of the target bullet screen comprises:
the first decoding submodule is used for decoding the video content to obtain a first video frame stream;
the bullet screen area detection submodule is used for analyzing the video object in the first video frame stream to obtain an original bullet screen display area associated with the video object, and the original bullet screen display area is determined by the survival time of a target object in a video transition environment and an area motion track;
the bullet screen area analysis submodule is used for screening the original bullet screen display area and determining a target bullet screen display area associated with the video object;
the bullet screen area detection submodule is further used for:
extracting contours corresponding to the video objects in each frame of image of the first video frame stream, wherein the contours comprise foreground object contours and background image contours;
monitoring the contour, and determining the area size of the contour and the time length of the contour corresponding to the frame image of the video frame stream;
the bullet screen area analysis submodule is further used for:
according to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, filtering the time length corresponding to the video object to be lower than a first preset time and the area corresponding to the video object to be smaller than a first preset area, and determining a target bullet screen display area associated with the video object; and/or
According to the area size of the outline corresponding to the video object in the original bullet screen display area and the time length corresponding to the appearance of the outline in the frame image of the video frame stream, splitting the time length corresponding to the video object to be higher than a second preset time and the area corresponding to the video object to be larger than a second preset area, and determining a target preset area and a bullet screen display area corresponding to the target preset time;
and determining the bullet screen display area corresponding to the target preset area and the target preset time as a target bullet screen display area.
6. The apparatus of claim 5, further comprising:
the barrage content presetting module is used for acquiring the content of a barrage to be displayed and the video content of the original video media;
the encoding module is configured to encode content of a bullet screen to be displayed and video content of the original video media, and generate a second video frame stream, where the second video frame stream includes: the bullet screen picture layer of the content of the display video and the content of bullet screen, the content of the bullet screen that waits to show includes: the content of a preset bullet screen corresponding to the video object and the content of a bullet screen sent by a user are included, and the bullet screen layer comprises the target bullet screen display area;
correspondingly, the bullet screen display module includes:
the video and barrage content acquisition submodule is used for acquiring the content of a preset barrage corresponding to the video object in the second video frame stream;
a second decoding submodule for decoding the second stream of video frames;
a bullet screen image layer separation submodule, configured to separate a bullet screen image layer of content of a preset bullet screen corresponding to the video object from the decoded second video frame stream, where the content of the preset bullet screen corresponds to the video object;
and the bullet screen content display submodule is used for displaying the content of the preset bullet screen in a target bullet screen display area of the bullet screen layer.
7. The apparatus of claim 5 or 6, wherein the bullet screen display module further comprises:
the user barrage sending submodule is used for receiving a barrage command sent by a user at the video object and then acquiring the content of the barrage sent by the user;
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area.
8. The apparatus of claim 6, further comprising:
the barrage attribute acquisition module is used for acquiring the display attribute of a preset barrage corresponding to the video object and adding the display attribute of the preset barrage to a second video frame stream;
correspondingly, the user barrage sending submodule is further configured to:
and when the content of the bullet screen sent by the user is associated with the video object, displaying the content of the bullet screen in the target bullet screen display area according to the display attribute of the preset bullet screen corresponding to the video object.
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| CN109729436B (en) * | 2017-10-31 | 2021-03-16 | 腾讯科技（深圳）有限公司 | Advertisement bullet screen processing method and device |
| CN110022499A (en) * | 2018-01-10 | 2019-07-16 | 武汉斗鱼网络科技有限公司 | A kind of live streaming barrage color setting method and device |
| CN110121083A (en) * | 2018-02-06 | 2019-08-13 | 上海全土豆文化传播有限公司 | The generation method and device of barrage |
| CN108495184B (en) * | 2018-02-06 | 2021-08-20 | 北京奇虎科技有限公司 | Method and device for adding barrage to video |
| CN109218800A (en) * | 2018-06-29 | 2019-01-15 | 努比亚技术有限公司 | A kind of barrage information display method, terminal and computer readable storage medium |
| CN109361946A (en) * | 2018-09-11 | 2019-02-19 | 传线网络科技（上海）有限公司 | The display methods and device of barrage information |
| CN109275017B (en) * | 2018-10-10 | 2021-02-02 | 武汉斗鱼网络科技有限公司 | Display method and device for setting bullet screen information |
| CN111107381A (en) * | 2018-10-25 | 2020-05-05 | 武汉斗鱼网络科技有限公司 | Live broadcast room bullet screen display method, storage medium, equipment and system |
| CN109309861A (en) * | 2018-10-30 | 2019-02-05 | 广州虎牙科技有限公司 | A kind of media processing method, device, terminal device and storage medium |
| CN110896496B (en) * | 2019-09-30 | 2020-12-01 | 深圳市瞬点科技有限公司 | Computer playing picture instant management system |
| CN111565329A (en) * | 2019-10-28 | 2020-08-21 | 张瑞 | Bullet screen display processing method based on big data |
| CN111163359B (en) * | 2019-12-31 | 2021-01-05 | 腾讯科技（深圳）有限公司 | Bullet screen generation method and device and computer readable storage medium |
| CN111292280B (en) * | 2020-01-20 | 2023-08-29 | 北京百度网讯科技有限公司 | Method and device for outputting information |
| CN111526408A (en) * | 2020-04-09 | 2020-08-11 | 北京字节跳动网络技术有限公司 | Information content generating and displaying method and device and computer readable storage medium |
| CN112312203B (en) * | 2020-08-25 | 2023-04-07 | 北京沃东天骏信息技术有限公司 | Video playing method, device and storage medium |
| CN112286415A (en) * | 2020-10-28 | 2021-01-29 | 联想(北京)有限公司 | Message display method and message display device |
| CN112272330B (en) * | 2020-10-30 | 2023-07-18 | 南京维沃软件技术有限公司 | Display method and device and electronic equipment |
| CN114584824A (en) * | 2020-12-01 | 2022-06-03 | 阿里巴巴集团控股有限公司 | Data processing method and system, electronic equipment, server and client equipment |
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| CN103856832B (en) * | 2012-11-29 | 2018-07-20 | 上海文广互动电视有限公司 | The making of hypermedia and delivery system and method |
| CN104010222A (en) * | 2014-04-28 | 2014-08-27 | 小米科技有限责任公司 | Method, device and system for displaying comment information |
| CN106162303B (en) * | 2015-04-27 | 2019-07-09 | 北京智谷睿拓技术服务有限公司 | Information processing method, information processing unit and user equipment |
| CN104811816B (en) * | 2015-04-29 | 2018-04-13 | 北京奇艺世纪科技有限公司 | A kind of is the method, apparatus and system that the object in video pictures plays barrage label |
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