CN110300314A - A kind of video broadcasting method, apparatus and system - Google Patents
A kind of video broadcasting method, apparatus and system Download PDFInfo
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- CN110300314A CN110300314A CN201910712012.XA CN201910712012A CN110300314A CN 110300314 A CN110300314 A CN 110300314A CN 201910712012 A CN201910712012 A CN 201910712012A CN 110300314 A CN110300314 A CN 110300314A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26258—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—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
- H04N21/44016—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 splicing one content stream with another content stream, e.g. for substituting a video clip
-
- 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
- H04N21/4402—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 reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention provides a kind of video broadcasting methods, apparatus and system, are related to multimedia data processing field.The video broadcasting method is applied to projection server, wherein projection server is electrically connected at least one target playback equipment.This video broadcasting method obtains the attribute information of video data to be played and target playback equipment first, it is then based on the attribute information of target playback equipment and the resolution ratio of video data to be played, video data to be played is divided into multiple video subdatas and determines target playlist.It is finally instructed based on video playing, controls target playback equipment according to target playlist and each video subdata is played simultaneously one by one.It can be seen that, video data to be played is split into multiple video subdatas by this programme, then a video subdata is respectively played by multiple target playback equipments, since the resolution ratio of each target playback equipment is fixed, so that being improved by the resolution ratio of the spliced playback equipment of multiple target playback equipments.
Description
Technical field
The present invention relates to multimedia data processing fields, and in particular to a kind of video broadcasting method, apparatus and system.
Background technique
With advances in technology and the raising of viewing demand, the film specification requirement of digital movie are improving year by year, for example,
From initial 48 nit of brightness requirement, to the 500 following nits；From initial resolution requirement 2K (2048x1080), to future
8K (8192x4320)；24 frames/second is required, to following 120 frames/second from initial play frame rate.
And the promotion of film specification needs while meeting film shooting, post-production, data distribution, film projection this four
The requirement in stage.At present in photographing phase, has been able to support the film shooting of 8K120 frame/second, pass through in the postproduction phase
High performance disk array can solve the bottleneck of high standard film post-production, and with universal, the high standard of 5G network
The data distribution of film will also become to be easy to.
But current presentation mode is to carry out film projection with unification platform projection server using a projector.Invention
People's discovery, since the projection principle of projector is reflected light imaging, brightness when this results in running a picture can not be mentioned significantly
It rises, removes this, current projector and projection server can not achieve the film projection requirement of 8K120 frame/second.
Therefore, how a kind of video broadcasting method is provided, can be improved the projection precision of film, be those skilled in the art
The big technical problem of urgently to be resolved one.
Summary of the invention
In view of this, can be improved the projection precision of film the embodiment of the invention provides a kind of video broadcasting method.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of video broadcasting method, is applied to projection server, and the projection server is set with the broadcasting of at least one target
Standby electrical connection, the video broadcasting method include:
The attribute information of video data to be played and the target playback equipment is obtained, the attribute information includes at least
The resolution ratio of the target playback equipment；
The resolution ratio of attribute information and the video data to be played based on the target playback equipment, will it is described to
Playing video data is divided into multiple video subdatas and determines target playlist, and the target playlist includes playing
The incidence relation of time and target broadcasting pictures；
It is instructed based on the video playing, controls the target playback equipment and be played simultaneously according to the target playlist
The video subdata.
Optionally, the resolution of the attribute information and the video data to be played based on the target playback equipment
The video data to be played is divided into multiple video subdatas and determines target playlist by rate, comprising:
The resolution ratio of resolution ratio and the video data to be played based on the target playback equipment, determines the mesh
Mark the quantity of playback equipment；
According to the quantity of the target playback equipment, the video data to be played is divided into multiple video subdatas；
Obtain the playing sequence of every frame picture in the video subdata；
Based on the playing sequence, the target playlist is determined.
Optionally, the attribute information further includes the dimension information of the target playback equipment, correspondingly, described be based on institute
The attribute information of target playback equipment and the resolution ratio of the video data to be played are stated, the video data to be played is drawn
It is divided into multiple video subdatas, comprising:
Based on the dimension information of the target playback equipment, the quantity of IMB snap-gauge in the target playback equipment is determined；
According to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
Optionally, described to be based on the playing sequence, determine the target playlist, comprising:
Obtain the preset play time of every frame picture；
Determine that the corresponding picture of the same preset play time is that the target plays in multiple video subdatas
Picture.
Optionally, described to be instructed based on the video playing, it controls the target playback equipment and is played according to the target
List synchronization plays the video subdata, comprising:
Obtain video playing instruction；
It is instructed based on the video playing, exports synchronization signal；
According to the synchronization signal, by multiple video subdatas according to the playing sequence in the target playlist
It is sent to the target playback equipment one by one, so that the target playback equipment plays the video subdata.
A kind of video play device, is applied to projection server, and the projection server is set with the broadcasting of at least one target
Standby electrical connection, the video play device include:
Module is obtained, for obtaining the attribute information of video data to be played and the target playback equipment, the category
Property information include at least the target playback equipment resolution ratio；
Determination unit, point for attribute information and the video data to be played based on the target playback equipment
Resolution, is divided into multiple video subdatas for the video data to be played and determines target playlist, and the target is broadcast
Emplace the incidence relation that table includes play time Yu target broadcasting pictures；
Control unit is controlled the target playback equipment and broadcast according to the target for being instructed based on the video playing
It emplaces table and the video subdata is played simultaneously.
A kind of audio/video player system, including projection server and at least one target playback equipment, the projection service
Device is electrically connected at least one target playback equipment, and the target playback equipment includes IMB board and LED display；
The projection server obtains the attribute information of video data to be played and the target playback equipment, is based on institute
The attribute information of target playback equipment and the resolution ratio of the video data to be played are stated, the video data to be played is drawn
It is divided into multiple video subdatas and determines target playlist, and instructed based on the video playing, controls the target and broadcast
It puts equipment and the video subdata is played simultaneously according to the target playlist, wherein the attribute information includes at least institute
The resolution ratio of target playback equipment is stated, the target playlist includes the incidence relation of play time Yu target broadcasting pictures.
Optionally, the projection attribute information and the to be played video of the server based on the target playback equipment
The video data to be played is divided into multiple video subdatas and determines target playlist by the resolution ratio of data, tool
Body is used for:
Point of the projection resolution ratio and the to be played video data of the server based on the target playback equipment
Resolution determines the quantity of the target playback equipment, and according to the quantity of the target playback equipment, by the video to be played
Data are divided into multiple video subdatas；The playing sequence of every frame picture in the video subdata is obtained, and is broadcast based on described
Sequence is put forward, determines the target playlist.
Optionally, the attribute information further includes the dimension information of the target playback equipment, correspondingly, the projection takes
The resolution ratio of business attribute information and the to be played video data of the device based on the target playback equipment, will be described to be played
Video data is divided into multiple video subdatas, is specifically used for:
The projection dimension information of the server based on the target playback equipment, determines in the target playback equipment
The quantity of IMB snap-gauge；According to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
Optionally, the projection server is based on the playing sequence, determines the target playlist, specific to use
In:
The projection server obtains the preset play time of every frame picture；It determines same in multiple video subdatas
The corresponding picture of the preset play time is the target broadcasting pictures.
Optionally, the projection server is instructed based on the video playing, controls the target playback equipment according to institute
It states target playlist and the video subdata is played simultaneously, be specifically used for:
The projection server obtains video playing instruction, is instructed based on the video playing, exports synchronization signal, and root
According to the synchronization signal, multiple video subdatas are sent to one by one according to the playing sequence in the target playlist
The IMB board of the target playback equipment, the target playback equipment play the video subdata.
Based on the above-mentioned technical proposal, the embodiment of the invention provides a kind of video broadcasting methods, apparatus and system, are related to more
Media data processing technology field.The video broadcasting method is applied to projection server, wherein shows server and at least one
Target playback equipment electrical connection.Specifically, this video broadcasting method obtains video data to be played first and target broadcasting is set
Standby attribute information is then based on the attribute information of target playback equipment and the resolution ratio of video data to be played, will be wait broadcast
It puts video data to be divided into multiple video subdatas and determine target playlist, wherein target playlist includes playing
The incidence relation of time and target broadcasting pictures.It is finally instructed based on video playing, control target playback equipment is broadcast according to target
It emplaces table and each video subdata is played simultaneously one by one.As it can be seen that video data to be played is split into multiple video subnumbers by this programme
According to then a video subdata respectively being played by multiple target playback equipments, since the resolution ratio of each target playback equipment is solid
It is fixed, so that being improved by the resolution ratio of the spliced playback equipment of multiple target playback equipments, that is, improve film projection precision.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow diagram of video broadcasting method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of audio/video player system provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of video resolution；
Fig. 4 is a kind of another structural schematic diagram of audio/video player system provided in an embodiment of the present invention；
Fig. 5 is a kind of another flow diagram of video broadcasting method provided in an embodiment of the present invention；
Fig. 6 is using a kind of example schematic of video broadcasting method provided in an embodiment of the present invention；
Fig. 7 is a kind of another flow diagram of video broadcasting method provided in an embodiment of the present invention；
Fig. 8 is a kind of another flow diagram of video broadcasting method provided in an embodiment of the present invention；
Fig. 9 is using a kind of another example schematic of video broadcasting method provided in an embodiment of the present invention；
Figure 10 is a kind of another flow diagram of video broadcasting method provided in an embodiment of the present invention.
Specific embodiment
Referring to Fig. 1, Fig. 1 is a kind of flow diagram of video broadcasting method provided in an embodiment of the present invention, the video
Playback method is applied to the projection server in audio/video player system as shown in Figure 2.Specifically, as shown in Fig. 2, in this implementation
In example, projection server is electrically connected at least one target playback equipment, wherein projection server can be for for video counts
According to the background server handled, target playback equipment can be LED display, the view sent for showing projection server
Frequency evidence.
What needs to be explained here is that further include IMB board in audio/video player system provided in this embodiment, the IMB plate
Card is integrated medium module, and full name in English is Integrated Media Block, is arranged in target playback equipment, realization pair
Digital movie data packet (DCP) carries out the processing such as unpacking decapsulation, decryption and image decompressor, to generate the reconstruction figure without compression
Picture, sound and subtitle, and LED display is delivered to realize the broadcasting of video.
This programme carries out height in such a way that existing target playback equipment (LED display) is in conjunction with multiple IMB boards
The film projection of resolution ratio.Specifically, in the present embodiment, by taking IMB board is arranged in target playback equipment as an example, to we
A kind of principle for video broadcasting method that case provides is illustrated, which includes:
S11, the attribute information for obtaining video data to be played and the target playback equipment.
Wherein, in conjunction with Fig. 3, video data to be played is the video data of high standard, in the present embodiment, the view of high standard
Frequency evidence refers to the video data with high-resolution and high frame per second.And high-resolution refers to higher than 2K's (2048*1080)
Video data, therefore, 4K, 8K, 16K are high-resolution.And the requirement frame per second of program picture is 24FPS at present, it is therefore, high
Frame per second refers to the video data higher than 24FPS (Frame Per Second, frame/second), for example, film frame per second be 48FPS,
The film of 60FPS, 96FPS, 120FPS are high frame per second film.
In the present solution, the attribute information of target playback equipment includes at least the resolution ratio of the target playback equipment, this is removed,
It can also include dimension information, luminance information, the refreshing frequency etc. of target playback equipment.It needs to be illustrated, this implementation
The target playback equipment that uses of example for the LED display of playable cinema film, built in IMB board resolution ratio far from
Reach the resolution ratio of the video data of high standard.For example, current IMB board separate unit only up to support 120 frames of 2K/second
Film projection, and when needing to play 120 frames of 4K/second film, as shown in figure 4, this programme is by by muti-piece IMB board
The synchronous projection together by the way of cluster, so that whole projection performance is promoted, for example, using 4 resolution ratio for 2K 120
Frame/second IMB board.Equally, when needing to play 120 frames of 8K/second film, 16 resolution ratio can be used for 2K 120
Frame/second IMB board.As it can be seen that IMB of this programme by the mating corresponding number of the LED screen that cabinet quantity will can be freely combined
Board, so that it may realize the projection to high standard film.
The resolution ratio of S12, the attribute information based on the target playback equipment and the video data to be played, by institute
Video data to be played is stated to be divided into multiple video subdatas and determine target playlist.
Wherein, in the present embodiment, target playlist includes the incidence relation of play time Yu target broadcasting pictures.
Specifically, the resolution ratio due to current IMB board cannot directly play the film of high standard, this step
By the attribute information of target playback equipment and the resolution ratio of video data to be played, data to be played are divided into multiple views
Frequency subdata, each video subdata are sent to an IMB board, and the broadcast interface based on screen management system, Bian Jisuo
Video data to be played is stated, playlist is created.
In general, each movie theater is configured with a screen management system, which provides user interface to control
(start, stop, pause, loaded playlists etc.) individual movie theater.Specifically, digital cinema presentation passes through fixed matchmaker
It is situated between or other transmission modes is sent to movie theatre, is then stored in projection server, administrative staff in a computer, pass through figure
User interface production projection list, which may include advertisement, propaganda film, trailer and film.
S13, it is instructed based on the video playing, it is synchronous according to the target playlist to control the target playback equipment
Play the video subdata.
Due to containing the incidence relation of play time Yu target broadcasting pictures in target playlist, works as and pass through silver
When curtain interface management system (SMS) issues video playing instruction, by synchronous signal transmitter to LED display when movie playback
Synchronization signal is sent, each video subdata shown in server is synchronized in sequence and is sent to multiple IMB boards and assigns
Instruction is played simultaneously, so that the video subdata is played simultaneously according to the target playlist in target playback equipment.
Schematically, by 4K high-resolution, 120FPS high frame per second film for, the broadcasting of the type film can pass through
One piece of LED digital movie screen body is shown out plus 4 pieces of IMB boards.The LED digital movie screen body is by 4 target playback equipments
It is spliced.
First the film of 4K high-resolution, 120FPS high frame per second imported into projection server memory in, then by
Resolution ratio is that the LED screen body of 4K (4096*2160) and 4 pieces of IMB boards (needing the corresponding key of 4 equipment) are played simultaneously out
Coming, play instruction is issued by screen management system, the picture that the film source that every piece of IMB board plays is the 2K&120fps received,
It is instructed by system synchronization signal, is presented on the LED digital movie screen body of 4K, viewing person is enabled to appreciate 4K, 120FPS
Movie play back effect.
On the basis of the above embodiments, how the present embodiment further provides two kinds based on the target playback equipment
Attribute information and the video data to be played resolution ratio, the video data to be played is divided into multiple videos
Data and the specific implementation for determining target playlist are as follows:
Mode one
As shown in figure 5, present embodiments provide a kind of attribute information based on the target playback equipment and it is described to
The video data to be played is divided into multiple video subdatas and determines that target plays by the resolution ratio of playing video data
The concrete methods of realizing of list, comprising steps of
The resolution ratio of S51, the resolution ratio based on the target playback equipment and the video data to be played, determine institute
State the quantity of target playback equipment；
As mentioned previously, the resolution ratio of video data to be played is higher than the resolution ratio of target playback equipment, therefore, this
Embodiment needs to determine the quantity for selecting target playback equipment first, is 4K, IMB snap-gauge with the resolution ratio of video data to be played
Resolution ratio be 2K for, then selected 4 IMB snap-gauges and 4 target playback equipments are needed, by 4 target playback equipment groups
At a LED digital movie screen body.
S52, according to the quantity of the target playback equipment, the video data to be played is divided into multiple video subnumbers
According to；
In conjunction with above-described embodiment, after confirmed to need 4 target playback equipments, this programme is then needed video counts to be played
According to 4 video subdatas are divided into, a video subdata is played by each target playback equipment later.
S53, the playing sequence for obtaining every frame picture in the video subdata；
As shown in fig. 6, after in order to guarantee that each video subdata is shown in each target playback equipment, spliced picture
Face can restore raw frames, therefore, current embodiment require that obtaining the playing sequence of every frame picture in each video subdata, example
Such as, the institute for obtaining the playing sequence between all frame pictures for including in video subdata 1 respectively, including in video subdata 2
There are the playing sequence and video between the playing sequence between frame picture, all frame pictures for including in video subdata 3
The playing sequence between all frame pictures for including in data 4.
S54, it is based on the playing sequence, determines the target playlist.
Then, the respective frame picture of the corresponding video subdata of frame picture each in video data to be played is arranged
Sequence generates target playlist.
Specifically, determining the target as shown in fig. 7, the present embodiment additionally provides a kind of based on the playing sequence
The concrete methods of realizing of playlist, comprising:
S71, the preset play time for obtaining every frame picture；
S72, determine that the corresponding picture of the same preset play time is the target in multiple video subdatas
Broadcasting pictures.
When video data to be played is divided into video subdata, every frame picture in each video subdata can recorde
Preset play time, if the preset play time of first frame picture in video subdata 1 is t1, the second the default of frame picture broadcast
Putting the time is t2 ..., and the preset play time of nth frame picture is tN；The default broadcasting of first frame picture in video subdata 2
Time is t1, and the preset play time of the second frame picture is t2 ..., and the preset play time of nth frame picture is tN；Video
The preset play time of first frame picture is t1 in data 3, and the preset play time of the second frame picture is t2 ..., and nth frame is drawn
The preset play time in face is tN；In video subdata 4 preset play time of first frame picture be t1, the second frame picture it is pre-
If play time is t2 ..., the preset play time of nth frame picture is tN.
Then, it is determined that the corresponding picture of same preset play time is target broadcasting pictures, that is, determine preset play time
Be the first frame picture of the video subdata 1 of t1, preset play time be t1 video subdata 2 first frame picture,
Preset play time be the video subdata 3 of t1 first frame picture and preset play time be t1 video subdata
The splicing picture of 4 first frame picture is the target broadcasting pictures that preset play time is t1.
On the basis of the above embodiments, as shown in figure 8, being additionally provided in video broadcasting method provided in this embodiment
One kind is instructed based on the video playing, control the target playback equipment be played simultaneously according to the target playlist it is described
The concrete methods of realizing of video subdata, comprising:
S81, video playing instruction is obtained；
S82, it is instructed based on the video playing, exports synchronization signal；
S83, according to the synchronization signal, by multiple video subdatas according to the broadcasting in the target playlist
Sequence is sent to the target playback equipment one by one, so that the target playback equipment plays the video subdata.
Schematically, example one is 2K&120FPS with IMB board in conjunction with Fig. 6, for the film for playing 4K&120FPS,
Video broadcasting method provided in this embodiment is as follows:
1. the DCP film source of 4K&120FPS format is imported into storage server；
2. then passing through the broadcast interface of screen management system, the DCP creation playlist imported is edited；
3. issuing play instruction by the interface screen management system (SMS), when movie playback, is sent out to LED digital movie screen body
Synchronization signal is sent, the DCP in storage server is synchronized to IMB1, the IMB2 for being sent to LED digital movie screen body in sequence,
This 4 pieces of boards of IMB3, IMB4 are simultaneously assigned instruction are played simultaneously；
4. every piece of board plays a quarter of raw frames, realize LED digital movie screen body by the film of 4K&120FPS
The effect being completely presented to by way of splicing in LED screen.
Example two is 2K&120FPS with IMB board in conjunction with Fig. 9, for the film for playing 8K&120FPS, the present embodiment
The video broadcasting method of offer is as follows:
1. the DCP film source of 8K&120FPS format is imported into storage server；
2. then passing through the broadcast interface of screen management system, editing the DCP imported and creating playlist；
3. issuing play instruction by the interface screen management system (SMS), when movie playback, is sent out to LED digital movie screen body
Synchronization signal is sent, the DCP in storage server is synchronized to IMB1, the IMB2 for being sent to LED digital movie screen body in sequence,
IMB3, IMB4 ... ... IMB16 board are simultaneously assigned instruction are played simultaneously；
As soon as realizing LED digital movie screen body by 8K& 4. every piece of board plays ten six/picture of raw frames
The film of 120FPS is completely presented to the effect in LED screen by way of splicing.
Similarly, because LED digital movie screen belongs to the product assembled by the mode of splicing, by determining IMB plate
The quantity of card, and video data to be played is split into the video subdata of quantity identical as IMB board quantity, by each IMB
Board plays a video subdata, realizes the film projection of more high standard.
Mode two
As shown in Figure 10, the present embodiment additionally provides a kind of attribute information based on the target playback equipment and described
The video data to be played is divided into the specific implementation side of multiple video subdatas by the resolution ratio of video data to be played
Method, comprising steps of
S101, the dimension information based on the target playback equipment determine the quantity of the IMB snap-gauge；
S102, according to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
Different from mode one, mode one can be before the not set LED screen of movie theatre, be set according to the target broadcasting determined
Standby quantity carries out LED screen splicing setting to movie theatre.And inventor considers to be set when the LED display of current movie theatre
It, can also be with the film projection effect of goal standard in the case where good.Therefore, in the present embodiment, the attribute of target playback equipment
Information includes the dimension information of the target playback equipment.
Specifically, assuming that LED point spacing is 2.5 millimeters in LED digital movie screen, then the LED digital movie screen body of 4K
Size be 10.24 meters (width) * 5.4 meters (height)；The size of the LED digital movie screen of 8K is 20.98 meters (width) * 10.8 meters
(height).
And the present embodiment is the size for obtaining existing LED digital movie screen body first, it is assumed that be 10.24 meters of (width) * 5.4
Rice (height), the display screen can achieve the precision of 4K.So, when the precision of the video data to be played in the present embodiment is 2K&
When the film of 120FPS, then it can determine that the quantity of the IMB snap-gauge in the target playback equipment is 1.
It should be noted that although the precision of display screen can achieve 4K in the present embodiment, due to practical film source etc.
Factor may have precision there is no 4K so high, for example, 2K of video data to be played, and therefore, this programme can benefit
The movie playback for being lower than display screen precision is realized with existing LED screen, and then improves the utilization rate of movie theater.
On the basis of the above embodiments, the present embodiment additionally provides a kind of video play device, is applied to projection service
Device, the projection server are electrically connected at least one target playback equipment, and the video play device includes:
Module is obtained, for obtaining the attribute information of video data to be played and the target playback equipment, the category
Property information include at least the target playback equipment resolution ratio；
Determination unit, point for attribute information and the video data to be played based on the target playback equipment
Resolution, is divided into multiple video subdatas for the video data to be played and determines target playlist, and the target is broadcast
Emplace the incidence relation that table includes play time Yu target broadcasting pictures；
Control unit is controlled the target playback equipment and broadcast according to the target for being instructed based on the video playing
It emplaces table and the video subdata is played simultaneously.
The working principle of the video play device refers to above method embodiment, herein not repeated description.
Except this, the present embodiment additionally provides a kind of audio/video player system, including projection server and at least one target
Playback equipment, the projection server are electrically connected at least one target playback equipment, and the target playback equipment is comprising one
The LED digital movie display screen of a or multiple IMB boards；
The projection server obtains the attribute information of video data to be played and the target playback equipment, is based on institute
The attribute information of target playback equipment and the resolution ratio of the video data to be played are stated, the video data to be played is drawn
It is divided into multiple video subdatas and determines target playlist, and instructed based on the video playing, controls the target and broadcast
It puts equipment and the video subdata is played simultaneously according to the target playlist, wherein the attribute information includes at least institute
The resolution ratio of target playback equipment is stated, the target playlist includes the incidence relation of play time Yu target broadcasting pictures.
Wherein, the projection attribute information and the to be played video counts of the server based on the target playback equipment
According to resolution ratio, the video data to be played is divided into multiple video subdatas and determines target playlist, specifically
For:
Point of the projection resolution ratio and the to be played video data of the server based on the target playback equipment
Resolution determines the quantity of the target playback equipment, and according to the quantity of the target playback equipment, by the video to be played
Data are divided into multiple video subdatas；The playing sequence of every frame picture in the video subdata is obtained, and is broadcast based on described
Sequence is put forward, determines the target playlist.
Wherein, the attribute information further includes the dimension information of the target playback equipment, correspondingly, the projection services
The resolution ratio of attribute information and the to be played video data of the device based on the target playback equipment, by the view to be played
Frequency is specifically used for according to multiple video subdatas are divided into:
The projection dimension information of the server based on the target playback equipment, determines in the target playback equipment
The quantity of IMB snap-gauge；According to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
Wherein, the projection server is based on the playing sequence, determines the target playlist, is specifically used for:
The projection server obtains the preset play time of every frame picture；It determines same in multiple video subdatas
The corresponding picture of the preset play time is the target broadcasting pictures.
Wherein, the projection server is instructed based on the video playing, controls the target playback equipment according to described
The video subdata is played simultaneously in target playlist, is specifically used for:
The projection server obtains video playing instruction, is instructed based on the video playing, exports synchronization signal, and root
According to the synchronization signal, multiple video subdatas are sent to one by one according to the playing sequence in the target playlist
The IMB board of the target playback equipment, the target playback equipment play the video subdata.
The working principle of the audio/video player system refers to above method embodiment, herein not repeated description.
To sum up, the embodiment of the invention provides a kind of video broadcasting method, apparatus and system, it is related to multimedia-data procession
Technical field.The video broadcasting method is applied to projection server, wherein projection server and at least one target playback equipment
Electrical connection.Specifically, this video broadcasting method obtains the attribute information of video data to be played and target playback equipment first,
It is then based on the attribute information of target playback equipment and the resolution ratio of video data to be played, video data to be played is divided
At multiple video subdatas and determine target playlist, wherein target playlist includes that play time and target play
The incidence relation of picture.It is finally instructed based on video playing, control target playback equipment synchronizes one by one according to target playlist
Play each video subdata.As it can be seen that video data to be played is split into multiple video subdatas by this programme, then by multiple mesh
Mark playback equipment respectively plays a video subdata, since the resolution ratio of each target playback equipment is fixed, so that by multiple mesh
The resolution ratio for marking the spliced playback equipment of playback equipment improves, that is, improves film projection precision.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of video broadcasting method, which is characterized in that be applied to projection server, the projection server and at least one mesh
Playback equipment electrical connection is marked, the video broadcasting method includes:
The attribute information of video data to be played and the target playback equipment is obtained, the attribute information includes at least described
The resolution ratio of target playback equipment；
The resolution ratio of attribute information and the video data to be played based on the target playback equipment, will be described to be played
Video data is divided into multiple video subdatas and determines target playlist, and the target playlist includes play time
With the incidence relation of target broadcasting pictures；
Instructed based on the video playing, control the target playback equipment be played simultaneously according to the target playlist it is described
Video subdata.
2. video broadcasting method according to claim 1, which is characterized in that the category based on the target playback equipment
The resolution ratio of property information and the video data to be played, is divided into multiple video subdatas for the video data to be played
And determine target playlist, comprising:
The resolution ratio of resolution ratio and the video data to be played based on the target playback equipment, determines that the target is broadcast
Put the quantity of equipment；
According to the quantity of the target playback equipment, the video data to be played is divided into multiple video subdatas；
Obtain the playing sequence of every frame picture in the video subdata；
Based on the playing sequence, the target playlist is determined.
3. video broadcasting method according to claim 1, which is characterized in that the attribute information further includes that the target is broadcast
The dimension information of equipment is put, correspondingly, the attribute information and the video to be played based on the target playback equipment
The video data to be played is divided into multiple video subdatas by the resolution ratio of data, comprising:
Based on the dimension information of the target playback equipment, the quantity of IMB snap-gauge in the target playback equipment is determined；
According to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
4. video broadcasting method according to claim 2, which is characterized in that it is described to be based on the playing sequence, it determines
The target playlist, comprising:
Obtain the preset play time of every frame picture；
Determine that the corresponding picture of the same preset play time is the target broadcasting pictures in multiple video subdatas.
5. video broadcasting method according to claim 4, which is characterized in that described to be instructed based on the video playing, control
It makes the target playback equipment and the video subdata is played simultaneously according to the target playlist, comprising:
Obtain video playing instruction；
It is instructed based on the video playing, exports synchronization signal；
According to the synchronization signal, one by one according to the playing sequence in the target playlist by multiple video subdatas
It is sent to the target playback equipment, so that the target playback equipment plays the video subdata.
6. a kind of video play device, which is characterized in that be applied to projection server, the projection server and at least one mesh
Playback equipment electrical connection is marked, the video play device includes:
Module is obtained, for obtaining the attribute information of video data to be played and the target playback equipment, the attribute letter
Breath includes at least the resolution ratio of the target playback equipment；
Determination unit, the resolution for attribute information and the video data to be played based on the target playback equipment
The video data to be played is divided into multiple video subdatas and determines target playlist by rate, and the target plays
List includes the incidence relation of play time Yu target broadcasting pictures；
Control unit controls the target playback equipment according to the target played column for instructing based on the video playing
The video subdata is played simultaneously in table.
7. a kind of audio/video player system, which is characterized in that described including projection server and at least one target playback equipment
Projection server is electrically connected at least one target playback equipment, and the target playback equipment includes that IMB board and LED are shown
Screen；
The projection server obtains the attribute information of video data to be played and the target playback equipment, is based on the mesh
The attribute information of playback equipment and the resolution ratio of the video data to be played are marked, the video data to be played is divided into
Multiple video subdatas simultaneously determine target playlist, and are instructed based on the video playing, control the target broadcasting and set
It is standby that the video subdata is played simultaneously according to the target playlist, wherein the attribute information includes at least the mesh
The resolution ratio of playback equipment is marked, the target playlist includes the incidence relation of play time Yu target broadcasting pictures.
8. audio/video player system according to claim 7, which is characterized in that the projection server is based on the target and broadcasts
The attribute information of equipment and the resolution ratio of the video data to be played are put, the video data to be played is divided into multiple
Video subdata simultaneously determines target playlist, is specifically used for:
The resolution ratio of the projection resolution ratio and the to be played video data of the server based on the target playback equipment,
The quantity of the target playback equipment is determined, and according to the quantity of the target playback equipment, by the video data to be played
It is divided into multiple video subdatas；The playing sequence of every frame picture in the video subdata is obtained, and suitable based on the broadcasting
Sequence determines the target playlist.
9. audio/video player system according to claim 7, which is characterized in that the attribute information further includes that the target is broadcast
The dimension information of equipment is put, correspondingly, the attribute information of the projection server based on the target playback equipment and described
The video data to be played is divided into multiple video subdatas, is specifically used for by the resolution ratio of video data to be played:
The projection dimension information of the server based on the target playback equipment, determines IMB card in the target playback equipment
The quantity of plate；According to the quantity of the IMB snap-gauge, the video data to be played is divided into multiple video subdatas.
10. audio/video player system according to claim 8, which is characterized in that the projection server is based on the broadcasting
Sequentially, it determines the target playlist, is specifically used for:
The projection server obtains the preset play time of every frame picture；It determines same described in multiple video subdatas
The corresponding picture of preset play time is the target broadcasting pictures.
11. audio/video player system according to claim 10, which is characterized in that the projection server is based on the video
Play instruction controls the target playback equipment according to the target playlist and the video subdata is played simultaneously, specifically
For:
The projection server obtains video playing instruction, is instructed based on the video playing, exports synchronization signal, and according to institute
Synchronization signal is stated, multiple video subdatas are sent to according to the playing sequence in the target playlist one by one described
The IMB board of target playback equipment, the target playback equipment play the video subdata.
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| CN201910712012.XA CN110300314A (en) | 2019-08-02 | 2019-08-02 | A kind of video broadcasting method, apparatus and system |
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