CN113206993A - Method for adjusting display screen and display device - Google Patents
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- 230000002159 abnormal effect Effects 0.000 abstract description 6
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- 238000005516 engineering process Methods 0.000 description 10
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- 238000012545 processing Methods 0.000 description 9
- 230000003993 interaction Effects 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
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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
- H04N21/485—End-user interface for client configuration
- H04N21/4858—End-user interface for client configuration for modifying screen layout parameters, e.g. fonts, size of the windows
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/816—Monomedia components thereof involving special video data, e.g 3D video
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Abstract
The method comprises the steps of responding to a VR scene confirmation request, obtaining the width and the height of a virtual background screen in a VR scene, and respectively using the width and the height of the virtual background screen as the initial width and the initial height of a display screen for displaying a VR video; responding to a VR video playing request, and acquiring a target VR video according to a video identifier carried by the VR video playing request; responding to a display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request; and rendering the adjusted display screen according to the target VR video and displaying the rendered VR video, wherein the adjusted display screen does not exceed the display range of the virtual background screen, so that the abnormal phenomenon of video display after the display screen proportion is switched in the VR scene is reduced.
Description
Technical Field
The present disclosure relates to the field of Virtual Reality (VR) technologies, and in particular, to a method for adjusting a display screen and a display device.
Background
The VR technology is a research hotspot in the field of computer application at present, and is a man-machine interaction technology integrating multiple advanced technologies such as a real-time three-dimensional computer graphics technology, a man-machine interaction technology, a sensing technology, a multimedia technology, a wide-angle stereo display technology, a network technology and the like, and can vividly simulate various perceptual behaviors of people in natural environment. A user may be immersed in a computer-created virtual environment through a stereoscopic helmet, data gloves, three-dimensional mouse, etc., and may engage in various interactive activities with objects in the virtual environment with the natural behavior and perception of humans.
In a VR scene, the player provides a function of switching the display screen proportion of a VR video to meet the experience requirements of different users. Different from a traditional player in a two-dimensional scene, the VR scene is a three-dimensional scene, in the VR scene, the player is limited by the space of the VR scene, and if the player is directly displayed according to a selected proportion, a display screen may exceed the range of the VR scene, so that user experience is affected.
For example, the VR scene is a "virtual cinema", if not limited by the space of the VR scene, after the ratio is switched, the display screen exceeds the range of the virtual background screen in the "virtual cinema", which causes an abnormal phenomenon that the display screen is inserted into the "virtual cinema wall", as shown in fig. 1a, or the display screen is too small and does not look harmonious with the "virtual cinema", which affects the user experience, as shown in fig. 1 b.
Therefore, it is desirable to provide a method for adjusting a display screen to accommodate the playing of video in a VR scene.
Disclosure of Invention
The application provides a method for adjusting a display screen and display equipment, which are used for reducing abnormal phenomena of video display after the proportion of the display screen in a VR scene is switched.
In a first aspect, the present application provides a display device for adjusting a display screen, the display screen being configured to display a virtual reality, VR, video, the display device comprising a display, a memory, and a graphics processor:
the display, coupled to the graphics processor, configured to display a VR video;
the memory, coupled to the graphics processor, configured to store computer program instructions;
the graphics processor configured to, in accordance with the computer program instructions, perform operations comprising:
responding to a VR scene confirmation request, acquiring the width and the height of a virtual background screen in the VR scene, and respectively taking the width and the height of the virtual background screen as the initial width and the initial height of a pre-created display screen for displaying a VR video, wherein the center of the display screen is consistent with the center of the virtual background screen;
responding to a VR video playing request, and acquiring a target VR video according to a video identifier carried by the VR video playing request;
responding to a display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request to obtain the target width and the target height of the display screen;
rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
Optionally, the graphics processor adjusts the initial width and the initial height of the display screen according to the scale type carried by the switching request, to obtain a target width and a target height of the display screen, and is specifically configured to:
when the proportion type is a filling proportion, determining the initial width of the display screen as the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
When the proportion type is a fixed proportion, adjusting the initial width and the initial height of the display screen according to the size of a first target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the first target width-height ratio is determined according to a preset fixed proportion, and the reference value ratio is determined according to the width and the height of the virtual background screen.
Optionally, the graphics processor adjusts the initial width and the initial height of the display screen according to the first target width-to-height ratio and the reference ratio, to obtain the target width and the target height of the display screen, and is specifically configured to:
if the reference ratio is larger than the first target width-to-height ratio, zooming the initial width of the target display screen according to the first target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the first target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
Optionally, the graphics processor is further configured to:
acquiring the horizontal and vertical resolutions of the target video, and determining a second target width-height ratio of the display screen according to the horizontal and vertical resolutions of the target video;
the graphics processor adjusts the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain a target width and a target height of the display screen, and the graphics processor is specifically configured to:
and when the proportion type is a self-adaptive proportion, adjusting the initial width and the initial height of the display screen according to the size of a second target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the reference ratio is determined according to the width and the height of the virtual background screen.
Optionally, the graphics processor adjusts the initial width and the initial height of the display screen according to the size of the second target width-to-height ratio and the reference ratio, to obtain the target width and the target height of the display screen, and is specifically configured to:
if the reference ratio is larger than the second target width-to-height ratio, zooming the initial width of the target display screen according to the second target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the second target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
In a second aspect, the present application provides a method of adjusting a display screen for displaying a virtual reality, VR, video, the method comprising:
responding to a VR scene confirmation request, acquiring the width and the height of a virtual background screen in the VR scene, and respectively taking the width and the height of the virtual background screen as the initial width and the initial height of a pre-created display screen for displaying a VR video, wherein the center of the display screen is consistent with the center of the virtual background screen;
responding to a VR video playing request, and acquiring a target VR video according to a video identifier carried by the VR video playing request;
responding to a display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request to obtain the target width and the target height of the display screen;
rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
Optionally, the adjusting the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain the target width and the target height of the display screen includes:
when the proportion type is a filling proportion, determining the initial width of the display screen as the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
When the proportion type is a fixed proportion, adjusting the initial width and the initial height of the display screen according to the size of a first target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the first target width-height ratio is determined according to a preset fixed proportion, and the reference value ratio is determined according to the width and the height of the virtual background screen.
Optionally, the adjusting the initial width and the initial height of the display screen according to the first target width-to-height ratio and the reference ratio to obtain the target width and the target height of the display screen includes:
if the reference ratio is larger than the first target width-to-height ratio, zooming the initial width of the target display screen according to the first target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the first target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
Optionally, the method further includes:
acquiring the horizontal and vertical resolutions of the target video, and determining a second target width-height ratio of the display screen according to the horizontal and vertical resolutions of the target video;
the adjusting the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain the target width and the target height of the display screen comprises:
and when the proportion type is a self-adaptive proportion, adjusting the initial width and the initial height of the display screen according to the size of a second target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the reference ratio is determined according to the width and the height of the virtual background screen.
Optionally, the adjusting the initial width and the initial height of the display screen according to the second target width-to-height ratio and the reference ratio to obtain the target width and the target height of the display screen includes:
if the reference ratio is larger than the second target width-to-height ratio, zooming the initial width of the target display screen according to the second target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the second target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
In a third aspect, the present application provides a computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of the second aspect.
In the above embodiment of the application, after the interactive user selects the VR scene, the VR scene determination request is responded, the width and the height of the virtual background screen in the acquired VR scene are used as the initial width and the initial height of the display screen for displaying the VR video, the scale type carried by the request is switched according to the scale of the display screen, adjusting the initial width and height of the display screen to obtain the target width and height of the display screen, wherein a center of the display screen coincides with a center of the virtual background screen, and a target width and a target height of the display screen are adjusted based on the width and the height of the virtual background screen, therefore, when the adjusted display screen is used for displaying the VR video, the VR video cannot exceed the virtual background screen, and abnormal phenomena of video display after the display screen is switched in proportion in the VR scene are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1a illustrates a schematic diagram of a virtual background screen and a display screen in a VR scene;
fig. 1b illustrates a schematic diagram of a virtual background screen and a display screen in another VR scene;
fig. 2 is a block diagram schematically illustrating a display device provided in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating an application scenario provided by an embodiment of the present application;
FIG. 4 is a flowchart illustrating a method for adjusting a display screen in a VR scene according to an embodiment of the present application;
FIG. 5 is a flowchart illustrating a method for adjusting a display screen in a complete VR scene provided by an embodiment of the present application;
fig. 6 is a functional diagram illustrating a structure of a display device provided in an embodiment of the present application;
fig. 7 is a diagram illustrating an example of a hardware structure of a display device according to an embodiment of the present application.
Detailed Description
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments described herein without inventive step, are intended to be within the scope of the claims appended hereto. In addition, while the disclosure herein has been presented in terms of one or more exemplary examples, it should be appreciated that aspects of the disclosure may be implemented solely as a complete embodiment.
The terms "first", "second", and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and are not necessarily meant to imply a particular order or sequence Unless otherwise indicated (Unless other indicated). It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module" as used herein refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
The embodiment of the application provides a method for adjusting a display screen and display equipment, wherein a display screen which is consistent with the center of a virtual background screen in a VR scene is created in advance, the display screen is used for displaying a VR video, the width and the height of the virtual background screen in the VR scene are used as the initial width and the height of the display screen, on the basis, the width and the height of the display screen are adjusted according to the proportion type carried by a proportion switching request of the display screen, the fact that the virtual background screen in the VR scene cannot be exceeded when the adjusted display screen is used for displaying the VR video is ensured, the abnormal phenomenon of video display after proportion switching is reduced, the user experience is improved, further, the width and the height of the display screen can be adjusted in a self-adaptive mode according to the proportion type, and therefore the requirement of free selection of users for different video proportion display effects can be met, the flexibility of display is improved.
Taking a display device as a VR head-mounted display device as an example, fig. 2 exemplarily outputs a structure diagram of the display device provided in the embodiment of the present application. As shown in fig. 2, the VR head-mounted display device includes a lens group 201 and a display 202 disposed right in front of the lens group 201, wherein the lens group 201 is composed of a left display lens 201_1 and a right display lens 201_ 2. When a user wears the VR head-mounted display device, human eyes can watch videos displayed by the display 202 through the lens group 201, and VR effects are experienced.
In the embodiment of the application, various VR scenes such as a cinema scene, a game scene, a fitness scene and the like can be preset, and a user can select the VR scenes according to requirements. The VR scene may be stored on a server or in an application local to the display device. Wherein, be provided with virtual background screen in the different VR scenes, and the width and the height of virtual background screen are different in the different VR scenes. The position of the virtual background screen is the position of video playing in the VR scene, and the area surrounded by the width and the height of the virtual background screen is the area of video playing in the VR scene. Each VR scene uniquely corresponds to a scene identifier (such as a scene ID, a scene name, a Uniform Resource Locator (URL), etc.), and the width and height of the virtual background screen in each VR scene are recorded in advance, so as to generate a configuration file. Among them, it can be recorded in the form of key-value pairs, such as [ scene ID: (width value, height value) ].
The storage location of the configuration file is not limited in the embodiment of the application, and the configuration file can be stored in a local directory of the display device or an application program.
It should be noted that, the display device in the embodiment of the present application may be, besides the VR head-mounted display device, a device capable of playing and interacting with videos, such as a smart phone, a tablet computer, a desktop computer, a notebook computer, and a smart television.
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 3 schematically illustrates a VR video playing scene provided by an embodiment of the present application. As shown in the VR scene in fig. 3, a virtual background screen (indicated by a thick solid line in fig. 3) is disposed on a wall of the VR scene, and when video playback is performed, a display screen (indicated by a thin dotted line in fig. 3) for displaying a VR video is limited by the virtual background screen, and when the scale of the display screen is switched, the range of the virtual background screen cannot be exceeded, so that the video is normally displayed.
Based on the scene structure shown in fig. 3, fig. 4 exemplarily shows a flowchart of a method for adjusting a display screen according to an embodiment of the present application, where the method can accurately adjust the size of the display screen when the display screen is proportionally switched in a VR scene, and the process is executed by a display device having a virtual reality function, and mainly includes the following steps:
s401: responding to the VR scene confirmation request, obtaining the width and the height of a virtual background screen in the VR scene, and respectively taking the width and the height of the virtual background screen as the initial width and the initial height of a pre-created display screen for displaying the VR video.
In the step, a user performs man-machine interaction with the display device, selects a VR scene through a function key or a touch screen of the display device, and triggers a VR scene confirmation request carrying a scene identifier of the VR scene selected by the user. And after receiving the VR scene confirmation request, the display equipment acquires the VR scene according to the scene identification.
In specific implementation, in order to improve the scene obtaining efficiency, the display device first obtains a VR scene and a configuration file from a local application according to a scene identifier, and if the VR scene and the configuration file are not obtained, sends a VR scene obtaining request to the server, and sends the VR scene and the configuration file to the display device after the server receives the VR scene obtaining request. The display device loads and displays the acquired VR scene, and reads the width (marked as background size _ w) and the height (marked as background size _ h) of the virtual background screen in the VR scene according to the configuration file so as to serve as space limitation of a display screen for subsequently displaying the video.
In S401, after the display device is started, the rendering engine creates a planar rectangular grid, where the planar rectangular grid is used as a display screen (rendering carrier) of the VR video, initializes the display screen according to the acquired VR scene and the configuration file, specifically, sets a center of the display screen to be consistent with a center of the virtual background screen, and uses a width of the virtual background screen as an initial width of the display screen and a height of the virtual background screen as an initial height of the display screen.
S402: and responding to the VR video playing request, and acquiring a target VR video according to the video identifier carried by the VR video playing request.
In this step, a user performs human-computer interaction with a display device, selects a target VR video to be played through a function key or a touch screen of the display device, and triggers a VR video playing request, where the VR video playing request carries a video identifier of the target VR video selected by the user. And after receiving the VR video playing request, the display equipment acquires a target VR video according to the video identification.
For example, the display device sends a VR video acquisition request to the server according to the URL of the target VR video, and the server sends the target VR video to the display device after receiving the VR video acquisition request.
In order to improve the video acquisition efficiency, the target VR video may be acquired from the local of the display device first, and if not, the target VR video may be acquired from the server.
Optionally, to adapt the display screen to the target VR video, in some embodiments, the resolution of the target VR video is obtained at the same time as the target VR video is obtained. The horizontal resolution of the target VR video is recorded as video _ w, and the vertical resolution is recorded as video _ h.
It should be noted that, because the widths and heights of the virtual background screens of different VR scenes are different, the default ratio of the display screen is not necessarily suitable for the current VR scene, and needs to be adjusted. The default ratio is not limited, for example, the default ratio may be a horizontal-vertical resolution ratio of the target VR video, and for example, the default ratio may be a display screen ratio of the VR video played last time.
S403: responding to the display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request to obtain the target width and the target height of the display screen.
In this step, the scale type of the display screen can be preset, and each scale type corresponds to an adjustment mode. In the embodiment of the application, the scale types of the display screen include 3 types, a filling scale, a fixed scale and a self-adaptive scale. Wherein, the ratio value in the fixed ratio is not restrictive, such as 16: 9, 16: 10, 4: 3, etc.
In S403, the user performs human-computer interaction with the display device, selects a scale type of the display screen through a function key of the display device or a touch screen, and triggers a scale switching request of the display screen, where the switching request carries the scale type selected by the user, and the display device adjusts an initial width and an initial height of the display screen according to the scale type to obtain a target width and a target height of the display screen.
Assuming that the target width of the display screen is screen size _ w, the target height is screen size _ h, the reference ratio is P1, P1 is determined according to the width and height of the virtual background screen, and P1 is background size _ w/background size _ h. Specifically, the method comprises the following steps:
when the scale type is the fill scale, the initial width of the display screen is determined as the target width of the display screen, and the initial height of the display screen is determined as the target height of the display screen, namely, screen _ w ═ background _ size _ w, and screen _ h ═ background _ size _ h.
And when the proportion type is a fixed proportion, adjusting the initial width and the initial height of the display screen according to the size of the ratio of the first target width to the first target height to obtain the target width and the target height of the display screen. The first target aspect ratio is determined according to a preset fixed ratio, and when the fixed ratio is f _ w: f _ h, the first target aspect ratio P2 is f _ w/f _ h.
In specific implementation, the reference ratio and the first target width-height ratio are compared, if the reference ratio is greater than the first target width-height ratio, the initial width of the target display screen is scaled according to the first target width-height ratio to obtain the target width of the display screen, the initial height of the display screen is determined as the target height of the display screen, if the reference ratio is less than or equal to the first target width-height ratio, the initial height of the target display screen is scaled according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and the initial width of the display screen is determined as the target width of the display screen.
For example, when P1 > P2, in order to ensure that the display screen does not exceed the range of the virtual background screen, screen _ h is set as background screen _ h, and screen _ w is set as background screen _ h P2; when P1 is not greater than P2, screen _ w is set as background screen _ w, and screen _ h is set as background screen _ w (1/P2) in order to ensure that the display screen does not exceed the range of the virtual background screen.
When the scale type is the adaptive scale, the initial width and the initial height of the display screen are adjusted according to the size of a second target aspect ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the second target aspect ratio is determined according to the horizontal and vertical resolutions of the target VR video, and the second target aspect ratio P3 is screen _ w/screen _ h.
In specific implementation, the reference ratio and the second target width-height ratio are compared, if the reference ratio is greater than the second target width-height ratio, the initial width of the target display screen is scaled according to the second target width-height ratio to obtain the target width of the display screen, the initial height of the display screen is determined as the target height of the display screen, if the reference ratio is less than or equal to the second target width-height ratio, the initial height of the target display screen is scaled according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and the initial width of the display screen is determined as the target width of the display screen.
For example, when P1 > P3, in order to ensure that the display screen does not exceed the range of the virtual background screen, screen _ h is set as background screen _ h, and screen _ w is set as background screen _ h P3; when P1 is not greater than P3, screen _ w is set as background screen _ w, and screen _ h is set as background screen _ w (1/P3) in order to ensure that the display screen does not exceed the range of the virtual background screen.
S404: rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
In the step, the display device decodes the acquired target VR video to obtain an image corresponding to each video frame, and for each image, the rendering engine renders the adjusted display screen according to the UV coordinates of each fragment to obtain and display the rendered VR video. Wherein, each fragment is generated by rasterization, and the UV coordinate of each fragment is obtained by interpolation according to the UV coordinate of each grid vertex in the created plane rectangular grid (display screen).
It should be noted that, in the embodiment of the present application, any one of the three scale types may also be set as a default scale, and the VR video is displayed according to the set default scale of the display screen, where in the playing process, the user may further implement different display effects by switching the scale types.
For example, the default scale type of the display screen is a fixed scale, the display device renders the display screen determined according to the fixed scale of the VR video, and in the video playing process, the display device renders the display screen determined according to the adaptive scale of the VR video by switching the scale type of the display screen to the adaptive scale through an interactive user. At this time, no matter the VR video is displayed at the default ratio before switching or at the ratio after switching, the VR video does not exceed the range of the virtual background screen in the VR scene.
Fig. 5 is a flowchart illustrating a method for completely adjusting a display screen in a VR scene according to an embodiment of the present application. Taking the VR scene stored in the server as an example, as shown in fig. 5, the process mainly includes the following steps:
s501: and the display equipment receives a VR scene confirmation request, wherein the VR scene confirmation request carries the scene identification of the VR scene selected by the user.
In this step, taking the scene identifier as the URL of the VR scene as an example, the user selects the VR scene through a function key of the display device or a touch screen, and each VR scene corresponds to a unique URL. And after the VR scene is selected, sending a VR scene confirmation request carrying the URL.
S502: and the display equipment sends a VR scene acquisition request to the server according to the scene identifier.
In the step, the server stores multiple preset VR scenes in advance, and the display device can acquire the VR scene selected by the user from the server through the URL of the VR scene.
S503: and the server receives the VR scene acquisition request and sends the VR scene and the configuration file to the display equipment.
In this step, the configuration file stores the width and height of the virtual background screen in the VR scene, and the detailed description refers to the foregoing embodiment, which is not repeated here.
S504: and loading and displaying the VR scene by the display equipment, setting the initial width of the display screen as the width of the virtual background screen and setting the initial height of the display screen as the height of the virtual background screen according to the configuration file, and finishing the initialization operation of the display screen.
In this step, a rendering engine of the display device creates a planar rectangular grid as a display screen for displaying the VR video. The center of the display screen is consistent with the center of the virtual background screen, and the display screen is initialized according to the width and the height of the virtual background screen. The detailed description refers to S401, and is not repeated here.
S505: and the display equipment sends a VR video acquisition request to the server, wherein the VR video acquisition request carries the video identifier of the target VR video selected by the user.
In this step, a user selects a target VR video to be played through a function key of the display device or a touch screen, and the display device sends a VR video acquisition request to the server according to the target VR video selected by the user, where the request carries a video identifier of the target VR video, such as a URL of the target VR video.
S506: and the server sends the target VR video and the horizontal and vertical resolution of the target VR video to the display equipment according to the video identifier of the target VR video.
In this step, the horizontal and vertical resolutions of the target VR video may be used for subsequent adjustment of the width and height of the display screen.
S507: the display equipment receives a display screen proportion switching request, and the display screen proportion switching request carries the proportion type of the display screen selected by the user.
In this step, the user may switch the scale type of the display screen through a function key or a touch screen of the display device, for example, switch from a fixed scale to an adaptive scale, and the display device responds after receiving a display screen scale switching request. Wherein each proportion type corresponds to different adjustment modes.
S508: and the display equipment adjusts the initial width and the initial height of the display screen according to the proportion type to obtain the target width and the target height of the display screen.
In this step, the adjustment manner of the width and height of the display screen in each scale type is referred to S403, and is not repeated here.
S509: rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
The detailed description of this step is referred to S404 and will not be repeated here.
In the above embodiment of the present application, when playing video in the VR scene, the user can switch the display screen proportions through interaction, each proportion type corresponds to an adjustment mode, whichever adjustment mode is, the adjustment is performed on the basis of the width and height of the virtual background screen in the acquired VR scene, thereby ensuring that the adjusted target display screen does not exceed the range of the virtual background screen in the VR scene, reducing abnormal phenomena of video display after proportion switching, and improving user experience.
Based on the same technical concept, embodiments of the present application provide a display device, which can implement the adjustment method of the display screen in fig. 4 in the foregoing embodiments and achieve the same technical effects, and are not described herein again.
Referring to fig. 6, the display apparatus includes an initialization module 601, an acquisition module 602, a processing module 603, and a rendering display module 604;
the initialization module 601 is configured to respond to the VR scene confirmation request, obtain a width and a height of a virtual background screen in the VR scene, and use the width and the height of the virtual background screen as an initial width and an initial height of a pre-created display screen for displaying a VR video, respectively, where a center of the display screen is consistent with a center of the virtual background screen;
an obtaining module 602, configured to respond to the VR video playing request, and obtain a target VR video according to a video identifier carried in the VR video playing request;
the processing module 603 is configured to respond to the display screen ratio switching request, and adjust the initial width and the initial height of the display screen according to the ratio type carried in the switching request to obtain a target width and a target height of the display screen;
and a rendering display module 604, configured to render the adjusted display screen according to the target VR video, and display the rendered VR video.
Optionally, the processing module 603 is specifically configured to:
when the proportion type is a filling proportion, determining the initial width of the display screen as the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
When the proportion type is a fixed proportion, the initial width and the initial height of the display screen are adjusted according to the size of the first target width-height ratio and the reference ratio to obtain the target width and the target height of the display screen, the first target width-height ratio is determined according to a preset fixed proportion, and the reference value ratio is determined according to the width and the height of the virtual background screen.
Optionally, the processing module 603 is specifically configured to:
if the reference ratio is larger than the first target width-height ratio, zooming the initial width of the target display screen according to the first target width-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
And if the reference ratio is less than or equal to the first target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
Optionally, the obtaining module 602 is further configured to obtain horizontal and vertical resolutions of the target video;
the processing module 603 is further configured to determine a second target aspect ratio of the display screen according to the horizontal and vertical resolutions of the target video;
the processing module 603 is specifically configured to:
and when the proportion type is a self-adaptive proportion, adjusting the initial width and the initial height of the display screen according to the size of the second target width-height ratio and the reference ratio to obtain the target width and the target height of the display screen, wherein the reference ratio is determined according to the width and the height of the virtual background screen.
Optionally, the processing module 603 is specifically configured to:
if the reference ratio is larger than the second target width-height ratio, zooming the initial width of the target display screen according to the second target width-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
And if the reference ratio is less than or equal to the second target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
Based on the same technical concept, embodiments of the present application provide a display device, which can implement the adjustment method of the display screen in fig. 4 in the foregoing embodiments and achieve the same technical effects, and are not described herein again.
Referring to fig. 7, the display device includes a display 701, a memory 702, and a graphics processor 703, and the display 701 and the memory 702 are connected to a graphics processor 703 bus (indicated by a thick solid line in the figure). The display 701 is configured to display VR video, the memory 702 is configured to store computer program instructions, and the graphics processor 703 is configured to execute the method flow of adjusting the display screen of fig. 4 according to the computer program instructions stored by the memory 702.
The embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are used to enable a computer to execute the method for adjusting the display screen in the embodiment of the present application.
The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.
Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A display device for adjusting a display screen for displaying virtual reality, VR, video, the display device comprising a display, a memory, a graphics processor:
the display, coupled to the graphics processor, configured to display a VR video;
the memory, coupled to the graphics processor, configured to store computer program instructions;
the graphics processor configured to, in accordance with the computer program instructions, perform operations comprising:
responding to a VR scene confirmation request, acquiring the width and the height of a virtual background screen in the VR scene, and respectively taking the width and the height of the virtual background screen as the initial width and the initial height of a pre-created display screen for displaying a VR video, wherein the center of the display screen is consistent with the center of the virtual background screen;
responding to a VR video playing request, and acquiring a target VR video according to a video identifier carried by the VR video playing request;
responding to a display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request to obtain the target width and the target height of the display screen;
rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
2. The display device of claim 1, wherein the graphics processor adjusts an initial width and an initial height of the display screen according to a scale type carried by the switch request to obtain a target width and a target height of the display screen, and is specifically configured to:
when the proportion type is a filling proportion, determining the initial width of the display screen as the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
When the proportion type is a fixed proportion, adjusting the initial width and the initial height of the display screen according to the size of a first target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the first target width-height ratio is determined according to a preset fixed proportion, and the reference value ratio is determined according to the width and the height of the virtual background screen.
3. The display device of claim 2, wherein the graphics processor adjusts the initial width and the initial height of the display screen based on the first target aspect ratio and a reference ratio to obtain a target width and a target height of the display screen, and is specifically configured to:
if the reference ratio is larger than the first target width-to-height ratio, zooming the initial width of the target display screen according to the first target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the first target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
4. The display device of claim 1, wherein the graphics processor is further configured to:
acquiring the horizontal and vertical resolutions of the target video, and determining a second target width-height ratio of the display screen according to the horizontal and vertical resolutions of the target video;
the graphics processor adjusts the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain a target width and a target height of the display screen, and the graphics processor is specifically configured to:
and when the proportion type is a self-adaptive proportion, adjusting the initial width and the initial height of the display screen according to the size of a second target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the reference ratio is determined according to the width and the height of the virtual background screen.
5. The display device of claim 4, wherein the graphics processor adjusts the initial width and the initial height of the display screen based on a second target aspect ratio and a reference ratio to obtain a target width and a target height of the display screen, and is specifically configured to:
if the reference ratio is larger than the second target width-to-height ratio, zooming the initial width of the target display screen according to the second target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the second target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
6. A method of adjusting a display screen, the method comprising:
responding to a VR scene confirmation request, acquiring the width and the height of a virtual background screen in the VR scene, and respectively taking the width and the height of the virtual background screen as the initial width and the initial height of a pre-created display screen for displaying a VR video, wherein the center of the display screen is consistent with the center of the virtual background screen;
responding to a VR video playing request, and acquiring a target VR video according to a video identifier carried by the VR video playing request;
responding to a display screen proportion switching request, and adjusting the initial width and the initial height of the display screen according to the proportion type carried by the switching request to obtain the target width and the target height of the display screen;
rendering the adjusted display screen according to the target VR video, and displaying the rendered VR video.
7. The method as claimed in claim 6, wherein the adjusting the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain the target width and the target height of the display screen comprises:
when the proportion type is a filling proportion, determining the initial width of the display screen as the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
When the proportion type is a fixed proportion, adjusting the initial width and the initial height of the display screen according to the size of a first target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the first target width-height ratio is determined according to a preset fixed proportion, and the reference value ratio is determined according to the width and the height of the virtual background screen.
8. The method of claim 7, wherein the adjusting the initial width and the initial height of the display screen according to the first target width-to-height ratio and the reference ratio to obtain the target width and the target height of the display screen comprises:
if the reference ratio is larger than the first target width-to-height ratio, zooming the initial width of the target display screen according to the first target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the first target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the first target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
9. The method of claim 6, wherein the method further comprises:
acquiring the horizontal and vertical resolutions of the target video, and determining a second target width-height ratio of the display screen according to the horizontal and vertical resolutions of the target video;
the adjusting the initial width and the initial height of the display screen according to the scale type carried by the switching request to obtain the target width and the target height of the display screen comprises:
and when the proportion type is a self-adaptive proportion, adjusting the initial width and the initial height of the display screen according to the size of a second target width-height ratio and a reference ratio to obtain the target width and the target height of the display screen, wherein the reference ratio is determined according to the width and the height of the virtual background screen.
10. The method of claim 9, wherein the adjusting the initial width and the initial height of the display screen according to the second target aspect ratio and the reference ratio to obtain the target width and the target height of the display screen comprises:
if the reference ratio is larger than the second target width-to-height ratio, zooming the initial width of the target display screen according to the second target width-to-height ratio to obtain the target width of the display screen, and determining the initial height of the display screen as the target height of the display screen; or
If the reference ratio is smaller than or equal to the second target width-height ratio, zooming the initial height of the target display screen according to the reciprocal of the second target width-height ratio to obtain the target height of the display screen, and determining the initial width of the display screen as the target width of the display screen.
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