CN105933726A - Virtual reality terminal and video resolution adaptation method and device thereof - Google Patents

Virtual reality terminal and video resolution adaptation method and device thereof Download PDF

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Publication number
CN105933726A
CN105933726A CN201610319088.2A CN201610319088A CN105933726A CN 105933726 A CN105933726 A CN 105933726A CN 201610319088 A CN201610319088 A CN 201610319088A CN 105933726 A CN105933726 A CN 105933726A
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CN
China
Prior art keywords
video
resolution
display screen
virtual reality
according
Prior art date
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CN201610319088.2A
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Chinese (zh)
Inventor
许小飞
Original Assignee
乐视控股(北京)有限公司
乐视致新电子科技(天津)有限公司
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Priority to CN201610319088.2A priority Critical patent/CN105933726A/en
Publication of CN105933726A publication Critical patent/CN105933726A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA

Abstract

The embodiment of the invention provides a video resolution adaptation method and device for a virtual reality terminal. The method comprises the steps: obtaining the size of an effective display screen of a display of the virtual reality terminal, and obtaining the target resolution of video play; carrying out the zooming of the play size of a to-be-played video according to the target resolution of video play and the size of the effective display screen of the display of the virtual reality terminal, so as to enable the target resolution of video play to adapt to the size of the effective display screen. According to the embodiment of the invention, the method can achieve adaptive representation on terminal equipment screens in various sizes according to the user's requirements for the video resolution, and enables a user to obtain a comfortable and smooth watch effect.

Description

Virtual reality terminal and the adaptive method of video resolution thereof and device

Technical field

The embodiment of the present invention belongs to image processing field, particularly relates to a kind of virtual reality terminal and video thereof The adaptive method of resolution and device.

Background technology

Virtual reality technology (Virtual Reality, VR), is that one utilizes computer mould to draw up three-dimensional space Between virtual world, allow user pass through vision, audition etc. produce interactively, the experience sense of immersion Being subject to, virtual reality technology is that the fields such as computer graphics, man-machine interaction, sensing technology intersect Item complex art.Along with the fast development coming computer hardware, network environment etc. so that virtual reality skill Art develops rapidly and occurs in that a lot of ripe virtual reality system, and they are at virtual emulation, geography The aspects such as information system, user social contact, Entertainment have a wide range of applications.

Visual system is the most important perceptual channel of VR, and meanwhile, virtual scene can perception also be user The prerequisite of man-machine interaction is carried out, so scene display mode and equipment thereof are VR in virtual environment The element of Method of Man-computer Interaction.The most conventional scene display mode is helmet-type, desktop Formula, projection, hand-held and Auto-stereo display mode etc., every kind of display mode includes again polytype Screen size.

In order to virtual reality terminal to user present immersion experience, video content need high-resolution in Existing, this makes video file amount big, and usually more than 1GB capacity, if presented after Xia Zaiing, then in terminal Loading slow on equipment, and need terminal unit costly, this is the factor of experience lf being influenced at first, Therefore consider by Network Transmission Streaming to terminal use.

Video is to be stored in server end after compressed coding, and it exists multiple compressed format and resolution differences, Such as SD, high definition, super clear etc..In order to video stream media is comfortable, smooth presents to user, Need to play video under various screen sizes and multiple resolution condition.Therefore need badly a kind of virtual existing The adaptive method of video resolution and device thereof in real terminal.

Summary of the invention

In view of this, the embodiment of the present invention provides a kind of virtual reality terminal and the adaptation of video resolution thereof Method and device, allows users to comfortable, smooth online embodiment virtual reality video playback.

The embodiment of the present invention provides the adaptive method of video resolution in a kind of virtual reality terminal, comprising:

Obtain effective display screen size of display in virtual reality terminal and obtain the mesh of video playback Mark resolution;

Effective display of display in target resolution according to described video playback and virtual reality terminal Screen size, zooms in and out so that the target resolution of video playback to the broadcasting size of video to be play Adapt to described effective display screen size.

Preferably, in one embodiment of this invention, in described virtual reality terminal, the effective of display shows Show that screen size uses the length and width pixel value of effective display screen of display in virtual reality terminal to characterize.

Preferably, in one embodiment of this invention, it is thus achieved that the target resolution of video playback includes: root According to transmission speed and available bandwidth, from alternative various video is differentiated, choose a video resolution as mesh Mark resolution.

Preferably, in one embodiment of this invention, it is thus achieved that the target resolution of video playback includes: catch Obtain the Action Events of user, according to the Action Events captured, from various video resolution, select one admittedly Determine video resolution as target resolution.

Preferably, in one embodiment of this invention, according to the target resolution of described video playback and Effective display screen size of display in virtual reality terminal, enters the broadcasting size of video to be play Row scaling is so that the described effective display screen size of target resolution adaptation of video playback includes:

Effective display of display in target resolution according to described video playback and virtual reality terminal Screen size, the broadcasting size calculating the video after video being play size scaling ratio and scaling is relative In described effective display screen size at the unilateral loading of length direction or in the unilateral filling of width Amount;

According to calculated scaling, the broadcasting size of video to be play is zoomed in and out, Yi Jigen According to calculated unilateral loading, the region that described effective display screen is play without video content is entered The bilateral in line length direction is filled or the bilateral of width is filled.

The embodiment of the present invention provides the adaptive device of video resolution in a kind of virtual reality terminal, comprising:

Acquisition module, it is thus achieved that in virtual reality terminal, effective display screen size and the acquisition of display regard The target resolution that frequency is play;

Video scaling module, for the target resolution according to described video playback and virtual reality terminal Effective display screen size of middle display, zooms in and out so that regarding the broadcasting size of video to be play The target resolution that frequency is play adapts to described effective display screen size.

Preferably, in one embodiment of this invention, in described virtual reality terminal, the effective of display shows Show that screen size uses the length and width pixel value of effective display screen of display in virtual reality terminal to characterize.

Preferably, in one embodiment of this invention, described acquisition module is further used for according to transmission speed Degree and available bandwidth, from alternative various video is differentiated, self adaptation chooses a video resolution as target Resolution.

Preferably, in one embodiment of this invention, described acquisition module is further used for capturing user's Action Events, according to the Action Events captured, selects a fixed video to divide from various video resolution Resolution is as target resolution.

Preferably, in one embodiment of this invention, described video scaling module is further used for according to institute State effective display screen size of display in the target resolution of video playback and virtual reality terminal, Calculate the broadcasting size of the video after video being play size scaling ratio and scaling relative to described effectively The display screen size unilateral loading at length direction or the unilateral loading at width;And root According to calculated scaling, the broadcasting size of video to be play is zoomed in and out, and according to calculating The unilateral loading obtained, carries out length to the region play without video content on described effective display screen The bilateral in direction is filled or the bilateral of width is filled.

The embodiment of the present invention provides a kind of virtual reality terminal, and it includes display, processor, processor For obtaining effective display screen size of display in virtual reality terminal and obtaining the mesh of video playback Mark resolution, and according to display in the target resolution of described video playback and virtual reality terminal Effective display screen size, the broadcasting size of video to be play zoomed in and out so that video playback Target resolution adapts to described effective display screen size.

In the embodiment of the present invention, by obtaining effective display screen size of display in virtual reality terminal And obtain the target resolution of video playback;And according to the target resolution of described video playback and Effective display screen size of display in virtual reality terminal, video to be play is zoomed in and out so that The target resolution of video playback adapts to described effective display screen size such that it is able to according to user to regarding The requirement of frequency division resolution self adaptation on sizes virtual reality terminal unit screen presents, and makes user obtain Obtain comfortable, smooth viewing effect.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below, Accompanying drawing in description is only some embodiments described in the present invention, for those of ordinary skill in the art From the point of view of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the adaptive method flow process of video resolution in one one kinds of virtual reality terminals of the embodiment of the present invention Schematic diagram;

Fig. 2 is the schematic flow sheet that the embodiment of the present invention two selects unilateral filling;

Fig. 3 is that the embodiment of the present invention three self adaptation from alternative various video is differentiated chooses a video resolution Rate is as the schematic flow sheet of target resolution;

Fig. 4 is the schematic flow sheet that the embodiment of the present invention four carries out video adjustment;

Fig. 5 is the self-reacting device of video multiresolution in 51 kinds of virtual reality terminals of the embodiment of the present invention Structural representation;

Fig. 6 is the embodiment of the present invention six virtual reality terminal structure schematic diagram.

Detailed description of the invention

By obtaining effective display screen size of display in virtual reality terminal and obtaining video playback Target resolution;And according to aobvious in the target resolution of described video playback and virtual reality terminal Show effective display screen size of device, video to be play is zoomed in and out so that the target of video playback is divided Resolution adapts to described effective display screen size such that it is able to exist the requirement of video resolution according to user On sizes virtual reality terminal unit screen, self adaptation presents, and makes user obtain comfortable, smooth sight Seeing that effect is certain, the arbitrary technical scheme implementing the embodiment of the present invention must be not necessarily required to reach above simultaneously All advantages.

For the technical scheme making those skilled in the art be more fully understood that in the embodiment of the present invention, below will knot Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole enforcement Example.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, All should belong to the scope of protection of the invention.

Further illustrate the present invention below in conjunction with accompanying drawing of the present invention to implement.

The present invention provides adaptive method and the device thereof of video resolution in a kind of virtual reality terminal, generally It is applied in virtual reality VoD network, if the resolution of video and the size of effective display screen Coupling, directly plays out;If it does not match, perform the technical scheme of following embodiment.

See Fig. 1, for the adaptive method stream of video resolution in the embodiment of the present invention one virtual reality terminal Journey schematic diagram;It may include that

Step S1: obtain effective display screen size of display in virtual reality terminal and obtain video The target resolution play.

Concrete, the difference meeting of the ratio (length-width ratio) that common resolution shows over the display according to it There is difference, as follows:

Table one

It addition, resolution is also relevant with video definition, definition has SD, super clear, high definition, broadcast TV and cinemas film, corresponding resolution such as table two:

Table two

Step S2, according to display in the target resolution of described video playback and virtual reality terminal Effectively display screen size, zooms in and out so that the mesh of video playback to the broadcasting size of video to be play Effective display screen size described in mark resolution adaptation.

In the present embodiment, if video object resolution is not mated with effective display screen size, such as, regard The target resolution of frequency is 1280x720, and effectively display screen size is less or bigger so that video When playing, picture is beyond the size of effective display screen, or only occupies effective display screen on the contrary The least area in size, the display caused is inharmonious, then may refer to Fig. 2 in step S2, for the present invention Embodiment two selects the schematic flow sheet that length pad or width are filled;As in figure 2 it is shown, comprising:

Step S201: according to display in the target resolution of described video playback and virtual reality terminal Effective display screen size, calculate broadcasting of the video after video being play size scaling ratio and scaling Put size relative to described effective display screen size at the unilateral loading of length direction or at width Unilateral loading;

Step S202: the broadcasting size of video to be play is contracted according to calculated scaling Put, and according to calculated unilateral loading, broadcast without video content on described effective display screen The region put carries out the bilateral of length direction and fills or the bilateral filling of width.

See Fig. 3, choose one point for the embodiment of the present invention three self adaptation from alternative various video is differentiated Resolution is as the schematic flow sheet of target resolution;In the present embodiment, divide in the target obtaining video playback According to transmission speed and available bandwidth during resolution, from alternative various video is differentiated, self adaptation is chosen one and is regarded Frequency division resolution is as target resolution.

Specifically, for a video file can corresponding multiple resolution a/b/c, according to transmission speed and can With the adoptable specific code check of bandwidth calculation, select from alternative various video is differentiated according to specific code check value Take a video object resolution, thus volume of transmitted data is increased or decreased.If such as the network bandwidth is sufficient, Then code check value is big, uses the video file that resolution is high, it is provided that more life-like virtual reality video;If The network bandwidth declines, then code check value is little, uses the video file that resolution is low, reduces data delay, fall The senses of discomfort such as the low dizziness brought because of virtual reality slowed-down video.

Alternately, it is also possible to select to determine target resolution according to user, i.e. step S1 obtains The Action Events of capture user during the target resolution of video playback, according to the Action Events captured, from Multiple video resolutions select a fixed video resolution as target resolution.Such as at display interface On have multiple video object resolution options, select for user, repeat no more in detail.

In this enforcement, when step S1 obtains effective display screen chi of display in virtual reality terminal The length and width pixel value of effective display screen of display in virtual reality terminal is used to characterize the most aobvious time very little Show screen size.

Display screen length pixel value is set to X, and display screen width pixel value is set to Y, and video is long Degree pixel value is set to Xv, and video width pixel value is set to Yv, and the resolution of video is Xv*Yv, scaling Ratio is set to scale, and target resolution is then Scale*Xv*Yv;The unilateral loading of length direction is set to OffsetX, the unilateral loading offsetY of width, then step S2 can include the step in Fig. 4 S401-S407, sees Fig. 4, carries out the schematic flow sheet of video adjustment for the embodiment of the present invention four;Such as figure Shown in 4, comprising:

Step S401: calculate Sw=X Yv/Xv,

Step S402: judge the magnitude relationship of Sw Yu Y;

If Sw is less than Y, then perform step S403;If Sw is more than Y, then perform step S404;If Sw be equal to Y, then it is assumed that the resolution of video is mated with effective display screen size, need not zoom in and out with Fill;

Step S403: the region play without video content on described effective display screen is carried out width Bilateral fill, this adjust flow process terminate;

In step S403 when filling, first calculate scaling scale=Y/Yv, then according to calculating Scaling calculate the unilateral loading offsetY=(Y-Yv scale)/2 of width, effectively aobvious Width is filled without video content equal to offsetY=about the width in the region play on display screen curtain The black surround of (Y-Yv scale)/2;

Step S404: the region play without video content on described effective display screen is carried out length direction Bilateral fill, this adjust flow process terminate.

First step S404, when filling, can calculate scaling scale=X/Xv, according to calculating The unilateral loading offsetX=(X-Xv scale)/2 in scaling computational length direction, thus having The length direction in the region play without video content on effect display screen fills length up and down equal to offsetX= The black surround of (X-Xv scale)/2.

See Fig. 5, for the self adaptation dress of video multiresolution in the virtual non-real end of the embodiment of the present invention five Put structural representation, comprising: the acquisition module 501 being mutually coupled and video scaling module 502, Wherein:

Acquisition module 501, for obtain in virtual reality terminal effective display screen size of display with And obtain the target resolution of video playback;

Video scaling module 502, for the target resolution according to described video playback and virtual reality Effective display screen size of display in terminal, the broadcasting size of video to be play is zoomed in and out with The target resolution making video playback adapts to described effective display screen size.

In the present embodiment, or in other any embodiment, in described virtual reality terminal, display is effective Display screen size uses the length and width pixel value table of effective display screen of display in virtual reality terminal Levy.

In the present embodiment, or in other any embodiment, described acquisition module 501 is further used for basis Transmission speed and available bandwidth, from alternative various video is differentiated, self adaptation chooses a video resolution work For target resolution.

In the present embodiment, or in other any embodiment, described acquisition module 501 is further used for capture The Action Events of user, according to the Action Events captured, selects one to fix from multiple video resolutions Video resolution is as target resolution.

In the present embodiment, or in other any embodiment, described video scaling module is further used for basis Effective display screen size of display in the target resolution of described video playback and virtual reality terminal, Calculate the broadcasting size of the video after video being play size scaling ratio and scaling relative to described effectively The display screen size unilateral loading at length direction or the unilateral loading at width;And root According to calculated scaling, the broadcasting size of video to be play is zoomed in and out, and according to calculating The unilateral loading obtained, carries out length to the region play without video content on described effective display screen The bilateral in direction is filled or the bilateral of width is filled.

In the present embodiment, relevant acquisition module 501 and video scaling module 502 are further or concrete Explaining in detail of function refers to above-mentioned Fig. 1-Fig. 4, repeats no more in detail.

See Fig. 6, for the embodiment of the present invention six virtual reality terminal structure schematic diagram;As shown in Figure 6, It includes display 601, processor 602, and processor 602 is used for obtaining display in virtual reality terminal Effective display screen size and obtain the target resolution of video playback, and broadcast according to described video Effective display screen size of display in the target resolution put and virtual reality terminal, to play The broadcasting size of video zoom in and out so that the target resolution of video playback adapts to described effective display screen Curtain size.

Preferably, in any of the embodiments of the present invention, display effective in described virtual reality terminal Display screen size uses the length and width pixel value table of effective display screen of display in virtual reality terminal Levy.

Preferably, in any of the embodiments of the present invention, described processor 602 is further used for according to biography Defeated speed and available bandwidth, from alternative various video is differentiated, self adaptation chooses a video resolution conduct Target resolution.

Preferably, in any of the embodiments of the present invention, described processor 602 is further used for capture use The Action Events at family, according to the Action Events captured, selects one to fix from multiple video resolutions and regards Frequency division resolution is as target resolution.

Preferably, in any of the embodiments of the present invention, described processor 602 is further used for according to institute State effective display screen size of display in the target resolution of video playback and virtual reality terminal, Calculate the broadcasting size of the video after video being play size scaling ratio and scaling relative to described effectively The display screen size unilateral loading at length direction or the unilateral loading at width;And root According to calculated scaling, the broadcasting size of video to be play is zoomed in and out, and according to calculating The unilateral loading obtained, carries out length to the region play without video content on described effective display screen The bilateral in direction is filled or the bilateral of width is filled.

In the present embodiment, further or explaining in detail of concrete function refers to relevant processor 602 State Fig. 1-Fig. 4, repeat no more in detail.

In the above embodiment of the present invention, virtual reality terminal can be virtual implementing helmet, it is also possible to for void Intending Reality glasses, virtual reality terminal can include a display, it is also possible to includes two display.

It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment), Or computer program.Therefore, the present invention can use complete hardware embodiment, complete software implementation, Or combine the form of embodiment in terms of software and hardware.And, the present invention can use one or more The computer-usable storage medium wherein including computer usable program code (includes but not limited to disk Memorizer, CD-ROM, optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, device (equipment) and computer program according to embodiments of the present invention Flow chart and/or block diagram describe.It should be understood that can by computer program instructions flowchart and/ Or the flow process in each flow process in block diagram and/or square frame and flow chart and/or block diagram and/or side The combination of frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedded The processor of datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory In instruction produce and include the manufacture of command device, this command device realize in one flow process of flow chart or The function specified in multiple flow processs and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, Make on computer or other programmable devices, perform sequence of operations step computer implemented to produce Process, thus the instruction performed on computer or other programmable devices provides for realizing at flow chart The step of the function specified in one flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know Basic creative concept, then can make other change and amendment to these embodiments.So, appended power Profit requires to be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention. Obviously, those skilled in the art can carry out various change and modification without deviating from the present invention to the present invention Spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (11)

1. the adaptive method of video resolution in a virtual reality terminal, it is characterised in that including:
Obtain effective display screen size of display in virtual reality terminal and obtain the mesh of video playback Mark resolution;
Effective display of display in target resolution according to described video playback and virtual reality terminal Screen size, zooms in and out so that the target resolution of video playback to the broadcasting size of video to be play Adapt to described effective display screen size.
Method the most according to claim 1, it is characterised in that show in described virtual reality terminal Effective display screen size of device uses the length and width of effective display screen of display in virtual reality terminal Pixel value characterizes.
Method the most according to claim 1, it is characterised in that the target obtaining video playback is differentiated Rate includes: according to transmission speed and available bandwidth, choose a video and divide from alternative various video is differentiated Resolution is as target resolution.
Method the most according to claim 1, it is characterised in that the target obtaining video playback is differentiated Rate includes: the Action Events of capture user, according to the Action Events captured, from various video resolution Middle selection one fixed video resolution is as target resolution.
5. according to the arbitrary described method of claim 1-4, it is characterised in that according to described video playback Target resolution and virtual reality terminal in effective display screen size of display, to be play The broadcasting size of video zooms in and out so that the target resolution of video playback adapts to described effective display screen Size includes:
Effective display of display in target resolution according to described video playback and virtual reality terminal Screen size, the broadcasting size calculating the video after video being play size scaling ratio and scaling is relative In described effective display screen size at the unilateral loading of length direction or in the unilateral filling of width Amount;
According to calculated scaling, the broadcasting size of video to be play is zoomed in and out, Yi Jigen According to calculated unilateral loading, the region that described effective display screen is play without video content is entered The bilateral in line length direction is filled or the bilateral of width is filled.
6. the adaptive device of video resolution in a virtual reality terminal, it is characterised in that including:
Acquisition module, it is thus achieved that in virtual reality terminal, effective display screen size and the acquisition of display regard The target resolution that frequency is play;
Video scaling module, for the target resolution according to described video playback and virtual reality terminal Effective display screen size of middle display, zooms in and out so that regarding the broadcasting size of video to be play The target resolution that frequency is play adapts to described effective display screen size.
Device the most according to claim 6, it is characterised in that show in described virtual reality terminal Effective display screen size of device uses the length and width of effective display screen of display in virtual reality terminal Pixel value characterizes.
Device the most according to claim 6, it is characterised in that described acquisition module is further used for According to transmission speed and available bandwidth, from alternative various video is differentiated, self adaptation chooses a video resolution Rate is as target resolution.
Device the most according to claim 6, it is characterised in that described acquisition module is further used for The Action Events of capture user, according to the Action Events captured, selects one from various video resolution Fixed video resolution is as target resolution.
10. according to the arbitrary described device of claim 6-9, it is characterised in that described video scaling mould Block is further used for display in the target resolution according to described video playback and virtual reality terminal Effectively display screen size, calculates the broadcasting of the video after video is play size scaling ratio and scaling Size relative to described effective display screen size at the unilateral loading of length direction or at width Unilateral loading;And according to calculated scaling, the broadcasting size of video to be play is carried out Scaling, and according to calculated unilateral loading, on described effective display screen without video content The region play carries out the bilateral of length direction and fills or the bilateral filling of width.
11. 1 kinds of virtual reality terminals, it is characterised in that include display, processor, processor is used In obtaining effective display screen size of display in virtual reality terminal and obtaining the target of video playback Resolution, and according to display in the target resolution of described video playback and virtual reality terminal Effectively display screen size, zooms in and out so that the mesh of video playback to the broadcasting size of video to be play Effective display screen size described in mark resolution adaptation.
CN201610319088.2A 2016-05-13 2016-05-13 Virtual reality terminal and video resolution adaptation method and device thereof CN105933726A (en)

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Cited By (7)

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