CN108521604A - Redirect the multi-display method and device of video - Google Patents
Redirect the multi-display method and device of video Download PDFInfo
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- CN108521604A CN108521604A CN201810291613.3A CN201810291613A CN108521604A CN 108521604 A CN108521604 A CN 108521604A CN 201810291613 A CN201810291613 A CN 201810291613A CN 108521604 A CN108521604 A CN 108521604A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000015654 memory Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4437—Implementing a Virtual Machine [VM]
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4438—Window management, e.g. event handling following interaction with the user interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present embodiments relate to field of cloud computer technology, a kind of multi-display method and device redirecting video is provided, exceed the indication range of the corresponding present physical display of video player in the real-time play position of judgement virtual player, when physical display switching occurs for the window that i.e. video redirects, the first video data in video cache area is first put into temporary buffer, again the video playing frame of client actively restart, to make the video of client redirect the target play position that window switches to rapidly target physical display, the first video data in temporary buffer is first played after the completion of restarting, the problem of so as to avoid audio and video interim card in the prior art, user experience can effectively be promoted.
Description
Technical field
The present embodiments relate to field of cloud computer technology, in particular to a kind of multihead display redirecting video
Method and device.
Background technology
Under the historical background of current cloud computing, VDI (Virtual Desktop Infrastructure, virtual desktop
Architecture) application scenarios it is increasingly extensive, VDI relies primarily on the virtual machine that Hypervisor on physical server is marked off,
And video and image-capable are very expensive in virtual machine, thus it is common to use video redirecting technique will be in virtual machine
The original audio, video data of middle decoding process is transmitted to client, and completing decoding in client renders and show.Currently on the market
Common video re-direction applications are essentially all to be broadcast come real-time update client according to the location information of virtual machine broadcast window
The position of window is put, still, under the application scenarios of multi-screen expansion, display switching can occur for the window that video redirects, this
When video playing frame inside exception handling can restart video playing frame, processing procedure is more complicated and exists and waits for
Time, therefore the problem of position of broadcast window will appear audio and video interim card is directly updated using existing method, influence user
Experience.
Invention content
The embodiment of the present invention is designed to provide a kind of multi-display method and device redirecting video, to solve
Video redirects the problem of audio and video interim card when switching between multi-screen.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows：
In a first aspect, an embodiment of the present invention provides a kind of multi-display method redirecting video, it is applied to client,
The client and server-side communicate to connect, configured with virtual machine player and multiple virtual aobvious in the virtual machine of the server-side
Show device, the client is configured with video player and multiple physical displays, the multiple virtual monitor and the multiple
Physical display be it is one-to-one, the method includes：Obtain the first video data and the void that the server-side is sent
The real-time play position of quasi- machine player；First video data is cached in the video cache area of the client；When
When judging that the real-time play position exceeds the indication range of the corresponding present physical display of the video player, according to institute
The indication range for stating the real-time play position and the present physical display of virtual machine player, determines first video
The corresponding target physical display of target play position and target play position of data；By first video data from described
The video cache area of client is added to pre-defined temporary buffer；The video for stopping being carrying out in the client is broadcast
Affairs are put, and the video playing frame for controlling the client is restarted；Detect that the video playing frame restarts completion, from institute
State and take out first video data in temporary buffer, the target physical display target play position to described
One video data plays out.
Second aspect, the embodiment of the present invention additionally provide a kind of multi-display apparatus redirecting video, are applied to client
End, the client are communicated to connect with server-side, and virtual machine player and multiple void are configured in the virtual machine of the server-side
Quasi- display, the client are configured with video player and multiple physical displays, the multiple virtual monitor and described
Multiple physical displays are one-to-one, and described device includes acquisition module, cache module, determining module, execution module, again
Open module and playing module.Wherein, acquisition module is used to obtain the first video data that the server-side is sent and described virtual
The real-time play position of machine player；Cache module is for delaying the video that first video data is cached in the client
It deposits in area；Determining module is used to show beyond the corresponding present physical of the video player when the judgement real-time play position
When the indication range of device, the display model of real-time play position and the present physical display according to the virtual machine player
It encloses, determines the target play position of first video data and the corresponding target physical display of target play position；It holds
Row module from the video cache area of the client for being added first video data to pre-defined temporal cache
Area；Module is restarted for stopping the video playing affairs being carrying out in the client, and controls the video of the client
Playing frame is restarted；Playing module takes for detecting that the video playing frame restarts completion from the temporary buffer
Go out first video data, first video data is broadcast in the target play position of the target physical display
It puts.
Compared with the prior art, a kind of multi-display method and device redirecting video provided in an embodiment of the present invention,
When judging that the real-time play position of virtual player exceeds the indication range of the corresponding present physical display of video player,
When being exactly the window generation physical display switching that video redirects, first the first video data in video cache area is put at this time
Enter temporary buffer, then stop the video playing affairs being carrying out in client, the video playing frame of client is carried out
Actively restart, compared with prior art, the embodiment of the present invention is by the way of actively restarting video playing frame, processing time
It is short, moment screen flicker is only will appear during screens switch, the video of client can be made to redirect window and switched rapidly
To the target play position of target physical display, meanwhile, after the completion of video playing frame is restarted, first play temporary buffer
In the first video data effectively improve production when switching so as to avoid multi-screen in the prior art the problem of audio and video interim card
The user experience of product.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the schematic diagram that server-side provided in an embodiment of the present invention is interacted with client.
Fig. 2 shows the block diagrams of client provided in an embodiment of the present invention.
Fig. 3 shows the multi-display method flow chart for the redirection video that first embodiment of the invention provides.
Fig. 4 shows the block diagram of the multi-display apparatus for the redirection video that second embodiment of the invention provides.
Icon：10- server-sides；20- clients；11- virtual machine players；12- virtual monitors；30- networks；201- is deposited
Reservoir；202- storage controls；203- processors；204- Peripheral Interfaces；205- physical displays；300- redirects the more of video
Screen display device；301- acquisition modules；302- cache modules；303- coordinate calculation modules；304- judgment modules；305- determines mould
Block；306- execution modules；307- restarts module；308- playing modules.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1 is please referred to, Fig. 1 shows that server-side 10 provided in an embodiment of the present invention is handed over at least one client 20
Mutual schematic diagram.Server-side 10 can be communicated by network 30 with client 20, with realize server-side 10 and client 20 it
Between data communication or interaction.In the virtual machine of server-side 10 be configured with virtual machine player 11, meanwhile, server-side 10 it is virtual
It is also configured with multiple virtual monitors 12 in machine, server-side 10 can be by network 30 by the video data in virtual machine player 11
Video is redirected to client 20 and completes decoding rendering and display.
In embodiments of the present invention, server-side 10 can be media server, and server-side 10 includes at least one virtual machine,
Virtual machine player 11 may be, but not limited to, wmp players, VLC players etc..Client 20 may be, but not limited to,
Thin-client, PC (personal computer, PC) etc..The operating system of client 20 may be, but not limited to,
Windows systems, linux system etc., client 20 are configured with video player, which may be, but not limited to,
Media Player, KMPlayer etc., the broadcast window of video player is exactly the window that video redirects in client 20.
Fig. 2 is please referred to, Fig. 2 shows the block diagrams of client 20 provided in an embodiment of the present invention.Client 20 is wrapped
Include multi-display apparatus 300, memory 201, storage control 202, processor 203,204 and of Peripheral Interface for redirecting video
Multiple physical displays 205.
The memory 201, storage control 202, processor 203, Peripheral Interface 204 and multiple physical displays 205
Each element is directly or indirectly electrically connected between each other, to realize the transmission or interaction of data.For example, these elements mutually it
Between can pass through one or more communication bus or signal wire and realize and be electrically connected.The multi-display apparatus for redirecting video
300 can be stored in the memory 201 or be solidificated in institute including at least one in the form of software or firmware (firmware)
State the software function module in the operating system (operating system, OS) of client 20.The processor 203 is for holding
The executable module stored in line storage 201, such as the software work(that includes of multi-display apparatus 300 for redirecting video
It can module or computer program.
Wherein, memory 201 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, memory 201 is for storing program, and the processor 203 executes described program after receiving and executing instruction.
Processor 203 can be a kind of IC chip, have signal handling capacity.Above-mentioned processor 203 can be with
It is general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP), speech processor and video processor etc.；Can also be digital signal processor, application-specific integrated circuit,
Field programmable gate array either other programmable logic device, discrete gate or transistor logic, discrete hardware components.
It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be
Microprocessor or the processor 203 can also be any conventional processor etc..
The Peripheral Interface 204 is used to couple various input/output devices to processor 203 and memory 201.
In some embodiments, Peripheral Interface 204, processor 203 and storage control 202 can be realized in one single chip.At it
In his some examples, they can be realized by independent chip respectively.
Physical display 205 is for playing out the video data that server-side 10 is sent to realize that video redirects, clothes
It is engaged in multiple virtual monitors 12 at end 10 and multiple physical displays 205 of client 20 is one-to-one, and resolution ratio
Unanimously, when virtual monitor 12, which occurs, for virtual machine player 11 switches, that is to say, that when the broadcasting window of virtual machine player 11
When mouth is moved to 2# virtual monitors 12 by 1# virtual monitors 12, the window that video redirects needs progress physics aobvious accordingly
Show that device 205 switches, i.e., the window that video redirects is needed accordingly from 1# physical displays corresponding with 1# virtual monitors 12
205 are moved to 2# physical displays corresponding with 2# virtual monitors 12 205.As an implementation, virtual monitor 12
It may each be the high-definition display screen of 1920*1080 with physical display 205.
First embodiment
Fig. 3 is please referred to, Fig. 3 shows the multi-display method flow for the redirection video that first embodiment of the invention provides
Figure.The multi-display method for redirecting video includes the following steps：
Step S101 obtains the real-time play position of the first video data and virtual machine player that server-side is sent.
In embodiments of the present invention, the first video data can be that server-side 10 is currently transmitted to client 20, and will
The video data that decoding is rendered and shown is completed in client 20 comprising the video requency frame data and audio frame number evidence of separation.Depending on
During frequency redirects, server-side 10 can monitor the location information of virtual machine player 11 in real time, and by real-time position information
It is transmitted to client 20, so that client 20 determines the play position of the first video data according to the real-time position information, in turn
Keep the broadcasting pictures of client 20 consistent with the broadcasting pictures of virtual machine player 11.
The real-time play position of virtual machine player 11 is server-side 10 according to virtual aobvious where virtual machine player 11
Show what the indication range of device 12 was determined, since the resolution ratio of multiple virtual monitors 12 is consistent, therefore can be according to more
The position relationship of a virtual monitor 12 defines the indication range of each virtual monitor 12, for example, server-side 10 laterally and
It is longitudinal to be respectively configured with 2 virtual monitors 12, it is assumed that the resolution ratio of virtual monitor 12 is 1920*1080, then 4 virtual displays
The indication range of device 12 is respectively (0,1920), (0,1080)；(1920,3840)、(0,1080)；(0,1920)、(1080,
2160) with (1920,3840), (1080,2160), then server-side 10 can be according to the display according to this 4 virtual monitors 12
Range determines the real-time play position i.e. transverse and longitudinal coordinate section of virtual machine player 11 and is sent to client 20.
It is not often to receive a server-side 10 when the video data that client 20 sends server-side 10 is decoded
The video data of transmission is just once decoded, and is susceptible to the discontinuous situation of video playing in this way.In order to ensure that video is broadcast
The continuity put, it will usually which the video data that will be decoded is cached.
First video data is cached in the video cache area of client by step S102.
In embodiments of the present invention, video cache area can be the one piece of calculator memory pre-defined in client 20,
The video data that video cache area is used to be decoded in cache client 20, can treat solution in order to client 20 in this way
The video data of code carries out quick reading process, and the continuity of video playing can be effectively ensured.
It in embodiments of the present invention, can be according to real-time after getting the real-time play position of virtual machine player 11
Relationship between the indication range of the center point coordinate of play position present physical display corresponding with video player is sentenced
Whether the real-time play position of disconnected virtual machine player 11 exceeds the display model of the corresponding present physical display of video player
It encloses, i.e., whether virtual machine player 11 occurs the switching of virtual monitor 12, and therefore, the embodiment of the present invention can also include step
S103 and step S104.
Step S103, the abscissa zone according to real-time play position and ordinate section, calculate real-time play position
Center point coordinate.
In embodiments of the present invention, the center point coordinate of real-time play position can be according to the horizontal seat of the real-time play position
Mark section and ordinate section are solved, that is to say, that central point abscissa, which is the midpoint of abscissa zone, central point is vertical sits
Be designated as the midpoint in ordinate section, for example, in real time play position abscissa zone and ordinate section be respectively (2000,
3600) with (200,980), then the center point coordinate of the real-time play position is (2800,590).
Step S104, judges whether center point coordinate exceeds the display model of the corresponding present physical display of video player
It encloses, if so, judging that real-time play position exceeds the indication range of the corresponding present physical display of video player.
In embodiments of the present invention, after the center point coordinate for calculating real-time play position, judge the center point coordinate
The indication range for whether exceeding 20 present physical display of client, if the center point coordinate has exceeded 20 current object of client
The indication range for managing display then analyzes virtual machine player 11 and the switching of virtual monitor 12 has occurred, for example, present physical
The abscissa indication range and ordinate indication range of display are respectively (0,1920) and (0,1080), are with 1920 and 1080
Benchmark, it is seen that the central point abscissa of real-time play position is more than 1920, can be determined that the real-time of virtual machine player 11 at this time
Whether play position exceeds the indication range of the corresponding present physical display of video player, i.e. virtual machine player 11 occurs
Virtual monitor 12 switches.
It should be pointed out that in the present embodiment, the center point coordinate of real-time play position is more than present physical display
Maximum indication range or minimum indication range less than present physical display, think that the center point coordinate has exceeded visitor
The indication range of 20 present physical display of family end, maximum indication range include lateral maximum value and longitudinal maximum value, and minimum is aobvious
Demonstration is enclosed including lateral minimum value and longitudinal minimum value.That is, central point abscissa occur is more than lateral maximum value, center
Point ordinate is more than longitudinal maximum value, central point abscissa is less than lateral minimum value, central point ordinate is less than longitudinal minimum value
At least one of, think that the center point coordinate has exceeded the display model of the corresponding present physical display of video player
Enclose, for example, the abscissa indication range and ordinate indication range of present physical display be respectively (1920,3840) and
(1080,2160), wherein 3840 be lateral maximum value, 1920 be lateral minimum value, 2160 be longitudinal maximum value, 1080 be vertical
To minimum value, it is less than as long as central point abscissa occur and being more than 2160, central point abscissa more than 3840, central point ordinate
1920, central point ordinate is less than at least one of 1080, thinks that the center point coordinate has exceeded present physical display
Indication range.
Step S105, when the real-time play position of judgement exceeds the display model of the corresponding present physical display of video player
When enclosing, the indication range of real-time play position and present physical display according to virtual machine player determines the first video
The corresponding target physical display of target play position and target play position of data.
In embodiments of the present invention, when virtual monitor 12, which occurs, for virtual machine player 11 switches, it is corresponding right to need
Client 20 carries out physical display 205 and switches, while needing to update visitor according to the real-time play position of virtual machine player 11
The current play position at family end 20.That is, when the switching of virtual monitor 12 occurs for virtual machine player 11, it is thus necessary to determine that
Go out client 20 to carry out the target physical display after physical display 205 switches and play on target physical display
The target play position of first video data.
It in embodiments of the present invention, can be according to the real-time play position of virtual machine player 11 and working as video player
Position coordinates difference between preceding play position determines the target play position of the first video data.Specifically, position coordinates
Difference includes abscissa difference and ordinate difference, wherein abscissa difference provides waiting for for the current play position of client 20
Mobile abscissa, the ordinate to be moved that ordinate difference provides the current play position of client 20 therefore can be according to this
Abscissa difference moves the current play position of client 20 according to abscissa to be moved, while according to Diff N
It is different, the current play position of client 20 is moved according to ordinate to be moved, the mesh of the first video data can be obtained
Mark play position.For example, the abscissa zone and ordinate section of the real-time play position of virtual machine player 11 are respectively
(2000,3600) and (200,980), the abscissa zone and ordinate section of the current play position of client 20 are respectively
(1000,2600) and (500,1280), it is seen that abscissa difference is the abscissa of current play position need to deviate 1000 to the left, indulge
Coordinate difference, which is the ordinate of current play position, need to offset up 300, therefore, by the abscissa of current play position to left avertence
It moves 1000, ordinate and offsets up 300, you can obtain the target play position of the first video data.
In embodiments of the present invention, can according to virtual machine player 11 real-time play position it is corresponding with video player
Present physical display indication range, determine the corresponding target physical display of target play position.Specifically, first
First, the center point coordinate of real-time play position can be calculated, center point coordinate can be according to the abscissa of the real-time play position
Section and ordinate section are solved, that is to say, that central point abscissa is the midpoint of abscissa zone, central point ordinate
For the midpoint in ordinate section, for example, the abscissa zone and ordinate section of play position are respectively (200,2120) in real time
(0,1080), then the center point coordinate of the real-time play position is (1160,540)；Then, corresponding according to video player
The indication range of present physical display determines that reference coordinate, reference coordinate can be the indication ranges of present physical display
The abscissa and ordinate of middle minimum, for example, it is assumed that 20 landscape configuration of client has multiple physical displays 205, present physical
Display is 2# displays, and abscissa indication range and ordinate indication range are respectively (1920,3840) and (0,1080),
Then reference coordinate is (1920,0) at this time, that is to say, that it is 1920 to refer to abscissa, is 0 with reference to ordinate；Next, it is judged that
The size of center point coordinate and reference coordinate, if center point coordinate be less than reference coordinate, by with present physical display
Indication range continuously previous physical display 205 be used as target physical display, for example, center point coordinate be (1160,
540), reference coordinate is (1920,0), and since 1160 are less than 1920, then target physical display is 1# displays, abscissa
Indication range and ordinate indication range are respectively (0,1920) and (0,1080)；If center point coordinate be more than reference coordinate and
Center point coordinate exceed present physical display indication range, then by with the indication range of present physical display it is continuous after
One physical display 205 is used as target physical display, for example, center point coordinate is (4000,540), reference coordinate is
(1920,0) are more than 1920 and the indication range (1920,3080) beyond present physical display, then target physical due to 4000
Display is 3# displays, and abscissa indication range and ordinate indication range are respectively (3840,5760) and (0,1080).
It should be pointed out that the determination process of above-mentioned target physical display is that have multiple objects with 20 landscape configuration of client
It is illustrated for reason display 205, when client 20 is longitudinal configured with multiple physical displays 205 or laterally longitudinal
When simultaneously configured with multiple physical displays 205, the determination process of target physical display is similar with the above process, herein no longer
It repeats.
Under the application scenarios of multi-screen expansion, when virtual monitor 12, which occurs, for virtual machine player 11 switches, phase is needed
That answers carries out the switching of physical display 205 to client 20, the video playing frame of client 20 when physical display 205 switches
It needs to reconnect renderer, therefore usually requires to restart the video playing frame of client 20, but restart client 20
Video playing frame means that the video playing position of script in client 20 is changed, so when video cache area in
The video data of script just needs to be updated to current video data to be played, that is to say, that the video data of script needs clear
Sky, but the Hua Pinghuo nonsynchronous problems of audio and video within a certain period of time can be caused in this way.To solve this problem, it needs to cache
Script video data in area is stored, and plays the video data of script in video cache area first after the completion of restarting.
First video data is added from the video cache area of client to pre-defined temporal cache step S106
Area.
In embodiments of the present invention, temporary buffer can be the one piece of calculator memory pre-defined in client 20,
The temporary buffer and video cache area are independent two pieces of calculator memories, and the two does not have an impact mutually.Temporary buffer
It can be used for when the progress video playing frame of client 20 is restarted, the first video data in buffered video buffer area.
Step S107 stops the video playing affairs being carrying out in client, and controls the video display frame of client
Frame is restarted.
In embodiments of the present invention, the first video data is added from the video cache area of client 20 to pre-defined
After temporary buffer, the video playing frame of client 20 actively restart.That is, stopping in client 20 just
In the video playing affairs of execution, and the video playing frame for controlling client 20 is restarted to empty video cache area, specific next
It says, is first shut off original video reproduction program in client 20, then restart the video decoding frame of client 20, and again
Transmit the parameter that video decoding needs.Video playing frame may be, but not limited to, Directshow playing frames.
In the prior art, under the application scenarios of multi-screen expansion, when screens switch occurs for the window that video redirects, visitor
The video playing frame at family end 20 can also restart, but it is this restart be by the exception handling inside video playing frame into
Row processing, processing procedure is more complicated and there are the stand-by period, therefore processing time is longer, therefore will appear audio and video interim card
The problem of, influence user experience and product quality.And in such a way that the active introduced in the embodiment of the present invention is restarted, when processing
Between it is short, moment screen flicker is only will appear during screens switch, effectively improves the user experience of product.
Step S108 detects that the video playing frame restarts completion, and described first is taken out from temporary buffer and is regarded
Frequency evidence is played out in the first video data of target play position pair of target physical display.
In embodiments of the present invention, after the completion of detecting that the video playing frame of client 20 is restarted, from pre-defined
The first video data is taken out in temporary buffer, and is played out in the target play position of target physical display.Due to visitor
After screens switch occurs for family end 20, restart first to play out the first video data of temporary buffer when playing, this
Sample is it is possible to prevente effectively from flower screen or the within a certain period of time nonsynchronous problem of audio and video.
Compared with prior art, the embodiment of the present invention has the advantages that：
First, aobvious beyond the corresponding present physical of video player in the real-time play position of judgement virtual machine player 11
When showing the indication range of device, analyzes virtual machine player 11 and the switching of virtual monitor 12 occurs, video redirects aobvious at this time
Show that window needs the corresponding physical display 205 that carries out to switch, actively weight is carried out by the video playing frame to client 20
It opens, the target play position of target physical display is switched to rapidly to make the video of client 20 redirect window, it can be with
Effectively solve the problems, such as audio and video interim card when video redirection is moved between multi-screen, the user experience is improved；
Secondly, aobvious beyond the corresponding present physical of video player in the real-time play position of judgement virtual machine player 11
When showing the indication range of device, analyze virtual machine player 11 occur virtual monitor 12 switch when, by the first video data from
The video cache area of client 20 is added to pre-defined temporary buffer, and restarts in the video playing frame of client 20
After the completion, the first video data is taken out from temporary buffer to play out in target play position, it is possible to prevente effectively from flower screen
Or the nonsynchronous problem of audio and video within a certain period of time.
Second embodiment
Fig. 4 is please referred to, Fig. 4 shows the multi-display apparatus 300 for the redirection video that second embodiment of the invention provides
Block diagram.The multi-display apparatus 300 for redirecting video includes acquisition module 301, cache module 302, coordinate calculating
Module 303, determining module 305, execution module 306, restarts module 307 and playing module 308 at judgment module 304.
Acquisition module 301, the real-time broadcasting of the first video data and virtual machine player for obtaining server-side transmission
Position.
Cache module 302, for the first video data to be cached in the video cache area of client.
Coordinate calculation module 303 is used for the abscissa zone according to real-time play position and ordinate section, calculates real-time
The center point coordinate of play position.
Judgment module 304, for judging whether center point coordinate exceeds the corresponding present physical display of video player
Indication range, if so, judge real-time play position exceed the corresponding present physical display of video player display model
It encloses.
Determining module 305, for exceeding the corresponding present physical display of video player when the real-time play position of judgement
Indication range when, according to virtual machine player real-time play position and present physical display indication range, determine
The corresponding target physical display of target play position and target play position of first video data.
In embodiments of the present invention, determining module 305 is specifically used for, and obtains the current play position of video player,
In, current play position is on the present physical display；Real-time play position according to virtual machine player is broadcast with video
The position coordinates difference between the current play position of device is put, determines the target play position of the first video data；According to virtual
The indication range of the real-time play position present physical display corresponding with video player of machine player determines that target plays
The corresponding target physical display in position.Execution module 306, for adding the first video data from the video cache area of client
Enter to pre-defined temporary buffer.
Restart module 307, the video playing affairs for stopping being carrying out in client, and control the video of client
Playing frame is restarted.
Playing module 308 takes out for detecting that the video playing frame restarts completion from the temporary buffer
First video data is played out in the first video data of target play position pair of target physical display.
The embodiment of the present invention further discloses a kind of computer readable storage medium, is stored thereon with computer program, described
The multihead display side for the redirection video that present invention discloses is realized when computer program is executed by processor 203
Method.
In conclusion a kind of multi-display method and device redirecting video provided in an embodiment of the present invention, is applied to
Client, client and server-side communicate to connect, configured with virtual machine player and multiple virtual aobvious in the virtual machine of server-side
Show that device, client are configured with video player and multiple physical displays, multiple virtual monitors and multiple physical displays are
Correspondingly, method includes：Obtain the real-time play position of the first video data and virtual machine player that server-side is sent；
First video data is cached in the video cache area of client；When the real-time play position of judgement is corresponded to beyond video player
Present physical display indication range when, real-time play position and present physical display according to virtual machine player
The current play position of indication range determines the target play position and the corresponding mesh of target play position of the first video data
Mark physical display；First video data is added from the video cache area of client to pre-defined temporary buffer；Stop
The video playing affairs being only carrying out in client, and the video playing frame for controlling client is restarted；Detect described regard
Frequency playing frame restarts completion, and the first video data is taken out from temporary buffer, is played in the target of target physical display
The first video data of position pair plays out.Compared with prior art, the real-time of judgement of embodiment of the present invention virtual player is broadcast
When putting indication range of the position beyond the corresponding present physical display of video player, the window hair of video redirection is analyzed
Raw physical display switching to the video playing frame of client actively restart, to make the video of client redirect
Window switches to rapidly the target play position of target physical display, the problem of avoiding audio and video interim card, can effectively carry
Rise user experience.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart in attached drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part for the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that at some as in the realization method replaced, the function of being marked in box can also be to be different from
The sequence marked in attached drawing occurs.For example, two continuous boxes can essentially be basically executed in parallel, they are sometimes
It can execute in the opposite order, this is depended on the functions involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use function or the dedicated base of action as defined in executing
It realizes, or can be realized using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each function module in each embodiment of the present invention can integrate to form an independent portion
Point, can also be modules individualism, can also two or more modules be integrated to form an independent part.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and is explained.
Claims (10)
1. a kind of multi-display method redirecting video, which is characterized in that be applied to client, the client and server-side
It communicates to connect, virtual machine player and multiple virtual monitors is configured in the virtual machine of the server-side, the client is matched
It is equipped with video player and multiple physical displays, the multiple virtual monitor and the multiple physical display are an a pair
It answers, the method includes：
Obtain the real-time play position of the first video data and the virtual machine player that the server-side is sent；
First video data is cached in the video cache area of the client；
When judging that the real-time play position exceeds the indication range of the corresponding present physical display of the video player,
The indication range of real-time play position and the present physical display according to the virtual machine player determines described
The corresponding target physical display of target play position and target play position of one video data；
First video data is added from the video cache area of the client to pre-defined temporary buffer；
Stop the video playing affairs being carrying out in the client, and controls the video playing frame weight of the client
It opens；
It detects that the video playing frame restarts completion, first video data is taken out from the temporary buffer,
The target play position of the target physical display plays out first video data.
2. the method as described in claim 1, which is characterized in that described when the judgement real-time play position exceeds the video
When the indication range of the corresponding present physical display of player, the real-time play position according to the virtual machine player and institute
The indication range for stating present physical display determines the target play position and target play position of first video data
Before the step of corresponding target physical display, the method further includes：
Abscissa zone according to the real-time play position and ordinate section calculate the central point of the real-time play position
Coordinate；
Judge whether the center point coordinate exceeds the indication range of the corresponding present physical display of the video player；
If so, the judgement real-time play position exceeds the display model of the corresponding present physical display of the video player
It encloses.
3. the method as described in claim 1, which is characterized in that the real-time play position according to the virtual machine player
With the indication range of the present physical display, determine that the target play position of first video data and target play
The step of corresponding target physical display in position, including：
Obtain the current play position of the video player, wherein the current play position is shown in the present physical
On device；
According to the position between the real-time play position and the current play position of the video player of the virtual machine player
Coordinate difference is set, determines the target play position of first video data；
Real-time play position present physical display corresponding with the video player according to the virtual machine player
Indication range determines the corresponding target physical display of the target play position.
4. method as claimed in claim 3, which is characterized in that the position coordinates difference includes abscissa difference and ordinate
Difference, the abscissa difference provide the abscissa to be moved of the current play position of the video player, the ordinate
Difference provides the ordinate to be moved of the current play position of the video player；
The real-time play position according to virtual machine player current play position corresponding with the video player
Between position coordinates difference, the step of determining the target play position of first video data, including：
According to the abscissa difference, the current play position of the video player is moved according to abscissa to be moved
It is dynamic；
According to the ordinate difference, the current play position of the video player is moved according to ordinate to be moved
It is dynamic, obtain the target play position of first video data.
5. method as claimed in claim 3, which is characterized in that the real-time play position according to the virtual machine player
The indication range of present physical display corresponding with the video player determines the corresponding target of the target play position
The step of physical display, including：
Abscissa zone according to the real-time play position and ordinate section calculate the central point of the real-time play position
Coordinate；
According to the indication range of the corresponding present physical display of the video player, reference coordinate is determined；
It, will be continuous with the indication range of the present physical display when the center point coordinate is less than the reference coordinate
Previous physical display is as target physical display；
When the center point coordinate is more than the reference coordinate, and the center point coordinate is beyond the present physical display
When indication range, using with the continuous the latter physical display of the indication range of the present physical display as target physical
Display.
6. a kind of multi-display apparatus redirecting video, which is characterized in that be applied to client, the client and server-side
It communicates to connect, virtual machine player and multiple virtual monitors is configured in the virtual machine of the server-side, the client is matched
It is equipped with video player and multiple physical displays, the multiple virtual monitor and the multiple physical display are an a pair
It answers, described device includes：
Acquisition module, the real-time broadcasting for obtaining the first video data and the virtual machine player that the server-side is sent
Position；
Cache module, for first video data to be cached in the video cache area of the client；
Determining module, for exceeding the corresponding present physical display of the video player when the judgement real-time play position
Indication range when, the display model of real-time play position and the present physical display according to the virtual machine player
It encloses, determines the target play position of first video data and the corresponding target physical display of target play position；
Execution module is faced for being added first video data to pre-defined from the video cache area of the client
When buffer area；
Restart module, the video playing affairs for stopping being carrying out in the client, and control regarding for the client
Frequency playing frame is restarted；
Playing module takes out described for detecting that the video playing frame restarts completion from the temporary buffer
One video data plays out first video data in the target play position of the target physical display.
7. device as claimed in claim 6, which is characterized in that described device further includes：
Coordinate calculation module is used for the abscissa zone according to the real-time play position and ordinate section, calculates the reality
When play position center point coordinate；
Judgment module, for judging whether the center point coordinate exceeds the corresponding present physical display of the video player
Indication range, if so, the judgement real-time play position exceeds the corresponding present physical display of the video player
Indication range.
8. device as claimed in claim 6, which is characterized in that the determining module is specifically used for：
Obtain the current play position of the video player, wherein the current play position is shown in the present physical
On device；
According to the position between the real-time play position and the current play position of the video player of the virtual machine player
Coordinate difference is set, determines the target play position of first video data；
Real-time play position present physical display corresponding with the video player according to the virtual machine player
Indication range determines the corresponding target physical display of the target play position.
9. device as claimed in claim 8, which is characterized in that the position coordinates difference includes abscissa difference and ordinate
Difference, the abscissa difference provide the abscissa to be moved of the current play position of the video player, the ordinate
Difference provides the ordinate to be moved of the current play position of the video player；
The determining module executes the current of real-time play position according to the virtual machine player and the video player
Position coordinates difference between play position determines the mode of the target play position of first video data, including：
According to the abscissa difference, the current play position of the video player is moved according to abscissa to be moved
It is dynamic；
According to the ordinate difference, the current play position of the video player is moved according to ordinate to be moved
It is dynamic, obtain the target play position of first video data.
10. device as claimed in claim 8, which is characterized in that the determining module is executed according to the virtual machine player
Real-time play position present physical display corresponding with the video player indication range, determine that the target plays
The mode of the corresponding target physical display in position, including：
Abscissa zone according to the real-time play position and ordinate section calculate the central point of the real-time play position
Coordinate；
According to the indication range of the corresponding present physical display of the video player, reference coordinate is determined；
It, will be continuous with the indication range of the present physical display when the center point coordinate is less than the reference coordinate
Previous physical display is as target physical display；
When the center point coordinate is more than the reference coordinate, and the center point coordinate is beyond the present physical display
When indication range, using with the continuous the latter physical display of the indication range of the present physical display as target physical
Display.
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| CN201810291613.3A CN108521604B (en) | 2018-03-30 | 2018-03-30 | Multi-screen display method and device for redirecting video |
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