CN105847709A - Cloud program directing station and multi-channel video stitching method - Google Patents
Cloud program directing station and multi-channel video stitching method Download PDFInfo
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- CN105847709A CN105847709A CN201610195433.6A CN201610195433A CN105847709A CN 105847709 A CN105847709 A CN 105847709A CN 201610195433 A CN201610195433 A CN 201610195433A CN 105847709 A CN105847709 A CN 105847709A
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- 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
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- 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
- H04N5/2624—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 for obtaining an image which is composed of whole input images, e.g. splitscreen
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- 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
- H04N5/265—Mixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
Abstract
The embodiments of the present invention disclose a cloud program directing station and a multi-channel video stitching method. The method comprises the steps of upon completing a data read period, reading the data of each video in the parallel manner; for each video, caching the read data into the queue of the above video; upon completing a data splicing period, recognizing a cached video frame of a minimum number; recognizing a video frame in the queue of each video that stores the above number; reading all video frames that store the above number out of the queues of videos respectively, and splicing up the video frames. Based on the cloud program directing station, the jamming/pausing phenomenon or the image losing phenomenon, on the condition that the network transmission is not stable, can be avoided as much as possible. Therefore, the playing smoothness is improved and the user experience is enhanced.
Description
Technical field
The present embodiments relate to cloud instructor in broadcasting's technical field, particularly relate to a kind of cloud instructor in broadcasting's platform and multichannel
Video-splicing method.
Background technology
In traditional television program designing, for use fixed venue, fixed light class program (as
TV column, sight are acute), the most all use multiple cameras to shoot, after so completing
Program has multi-angle, the other feature of many scapes, also show more comprehensively, more good-looking.
In such shooting, traditional instructor in broadcasting's platform receives each road video signal by holding wire, by
Television program designing human users's cut bank, selects a road to export videocorder from multiple signals.
Traditional instructor in broadcasting's platform is mainly set by cut bank, intercom system, monitor and integration power supply system etc.
Standby composition, not only structure operation is complicated, and equipment cost is expensive, and needs the instructor in broadcasting of specialty to operate,
For amateur television production media, being practically impossible to of task.
But the high speed development of new media tide lower network video, make again enterprise, group, individual for
The technical need of perfect in workmanshipization program grows with each passing day;Have benefited from the development of cloud computing technology so that interconnection
The content of online magnanimity is stored and is retrieved, and is also greatly accelerated the paces of new media development simultaneously, this
Greatly promote birth based on the cloud instructor in broadcasting's platform on cloud computing technology.
Based on new media cloud basis, cloud instructor in broadcasting's platform can help user fast with plug and play simultaneously
Speed disposes stable, efficient voice and video instructor in broadcasting's scene, promotes work efficiency, reduces equipment and technology cost.
For traditional instructor in broadcasting's platform, the great advantage of cloud instructor in broadcasting's platform is any place any time
Can dispose use, simultaneously can envoy's purpose scene more diversified.For the input of signal,
Cloud instructor in broadcasting's platform support switches the live picture of video camera of same place different angles, the shooting in different place
The live picture of machine;Simultaneously in order to simplify video capture device, cloud instructor in broadcasting's platform is also supported from mobile phone terminal video
The signal input gathered;
For outfan, video source can be switched over, scales by cloud instructor in broadcasting's platform beyond the clouds, superposition,
Audio mixings etc. process, it is possible to the live industry that is widely used in playing, online education industry, sports show industry,
Video entertainment interaction industry and video conference industry etc..
After cloud instructor in broadcasting's platform receives multi-channel video signal, these signals are spliced into a road signal output, that
Want these road signals to be monitored simultaneously, the most only need a display, just open a player
Can realize.
But, in actual applications, it was found by the inventors of the present invention that in the situation of network transmission instability
Under, cloud instructor in broadcasting's platform of prior art occurs card the most continually or loses the phenomenon of picture, causes
Result of broadcast is the most smooth affects user's experience.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of cloud instructor in broadcasting's platform and multi-channel video joining method,
In order to avoid card in the case of network transmission instability or to lose the phenomenon of picture, to carry as far as possible
Rise the fluency play, promote the experience of user.
Based on above-mentioned purpose, the multi-channel video joining method of a kind of cloud instructor in broadcasting's platform that the embodiment of the present invention provides,
Including:
When data read cycle arrives, read the data of each road video in a parallel fashion;
For every road video, by the data buffer storage that reads to the queue of this road video;
When data stitching cycle arrives, identify the frame of video of the smallest sequence number of caching;And
After judging the queue of each road video all has the frame of video of this sequence number, by each video of this sequence number
Frame reads out from individual queue respectively and splices.
Further, described method also includes:
Video playback is carried out according to splicing result.
Further, described in identify the frame of video of smallest sequence number of caching, specifically include:
For every road video, obtain the sequence number of the frame of video being stored at first in the queue of this road video;
Smallest sequence number is identified, as sequence number to be spliced from the sequence number obtained.
Further, described in judge the queue of each road video all has the frame of video of this sequence number after, should
Each frame of video of sequence number reads out respectively from individual queue, specifically includes:
For every road video, it is judged that whether the sequence number of the frame of video being stored at first in the queue of this road video is etc.
In described sequence number to be spliced;If so, the frame of video of this sequence number is read out from described queue.
Further, the duration of described data stitching cycle equals to or more than described data read cycle.
In the another aspect of the embodiment of the present invention, additionally provide a kind of cloud instructor in broadcasting's platform, including:
Video data read module, for when data read cycle arrives, reads each road in a parallel fashion
The data of video;For every road video, by the data buffer storage that reads to the queue of this road video;
Video data concatenation module, for when data stitching cycle arrives, identifies the foreword of caching
Number frame of video;And after judging the queue of each road video all has the frame of video of this sequence number, by this sequence
Number each frame of video read out from individual queue respectively and splice.
Further, described cloud instructor in broadcasting's platform also includes:
Video playback module, broadcasts for carrying out video according to the splicing result of described video data concatenation module
Put.
Further, described video data concatenation module specifically includes:
Smallest sequence number recognition unit, for when data stitching cycle arrives, identifies described video data
The frame of video of the smallest sequence number that read module is cached in individual queue, will identify that sequence number is as sequence to be spliced
Number output;
Judging unit, for receiving the sequence number to be spliced of described smallest sequence number recognition unit output, and judges
The queue of each road video the most all has the frame of video of described sequence number to be spliced;The most then send splicing
Notice;
Concatenation unit, after being used for receiving described splicing notice, by each frame of video of described sequence number to be spliced
Read out from individual queue respectively and splice.
In the technical scheme of the embodiment of the present invention, due to when data read cycle arrives, in a parallel fashion
Read and cache the data of each road video;When data stitching cycle arrives, by each video of smallest sequence number
Frame reads out from individual queue respectively and splices;So, read in each data compared to prior art
Taking the scheme only reading a road video data in the cycle, on the one hand technical scheme is greatly increased
The reading machine meeting of Liao Mei road video data, the most just considerably increases the acquisition probability of every road video data,
Improve the success rate of each splicing, contribute to reducing the appearance of the phenomenons such as card, loss picture;Another
Aspect, can carry out data splicing after a data read cycle, and the data splicing waiting time is compared
Also it is greatly shortened in prior art, similarly helps to reduce card, reduce cache overflow chance, minimizing
Lose the appearance of the phenomenons such as picture.
Accompanying drawing explanation
Fig. 1 a is the digital independent time diagram of 5 road videos of prior art;
Fig. 1 b is the digital independent time diagram of 5 road videos of the embodiment of the present invention;
Fig. 2 is the flow chart of the multi-channel video splicing player method of cloud instructor in broadcasting's platform of the embodiment of the present invention;
Fig. 3 is cloud instructor in broadcasting's platform internal structure block diagram of the embodiment of the present invention;
Fig. 4 is the internal structure block diagram of the video data concatenation module of the embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with being embodied as
Example, and referring to the drawings, the present invention is described in more detail.
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, its
In the most same or similar label represent same or similar element or there is same or like merit
The element of energy.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining this
Bright, and be not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein
" one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Should manage further
Solve, the wording used in the description of the present invention " include " referring to existing described feature, integer,
Step, operation, element and/or assembly, but it is not excluded that existence or add one or more other
Feature, integer, step, operation, element, assembly and/or their group.It should be understood that when me
Claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to
Other elements, or intermediary element can also be there is.Additionally, " connection " used herein or " coupling
Connect " wireless connections can be included or wireless couple.Wording "and/or" used herein include one or
More list the whole of item or any cell being associated combine with whole.
It should be noted that all uses " first " and the statement of " second " in the embodiment of the present invention
It is for the parameter of entity or the non-equal distinguishing two same names non-equal, it is seen that " the
One " " second " is only for the convenience of statement, should not be construed as the restriction to the embodiment of the present invention, after
This is illustrated by continuous embodiment the most one by one.
Prior art is analyzed by the present inventor: existing cloud instructor in broadcasting's platform is successively read each road
The data of video;When reading the data of certain road video, transcoding server is to rtmp (Real Time
Messaging Protocol, real-time messages agreement) server sends the request obtaining this road video data,
Setting up rtmp server after connecting and return the data of this road video, in this process, network transmits
State will affect the reception of data.If multi-channel video Zhong mono-road or some road network this moment transmission feelings
Condition is the best, causes transcoding server not receive data, then just cannot be carried out multi-path video data
Splicing, thereby results in Caton phenomenon;
Additionally, while certain road video is not received by data because of network reason, other road video
Caching the most constantly receives and stores data, and the data of these storages are owing to can not carry out the splicing of data
Also cannot be removed from the cache in time, and the limited cache overflow that is easily caused of spatial cache, occur
Part picture is lost, and arises that picture discontinuous phenomenon during broadcasting.
Based on above-mentioned analysis and discovery, the present inventor is it is considered that read the most respectively
The data of Qu Ge road video.
Fig. 1 a shows the digital independent time diagram of 5 road videos of prior art;Fig. 1 b illustrates
The digital independent time diagram of 5 road videos of embodiment of the present invention technical scheme;Usual two figures
Contrast, it can be seen that every time data read cycle only reads a road when arriving and regards in the prior art
Frequency evidence;The digital independent task of 5 road videos just can be completed after 5 secondary data read cycles;The most just
It is to say, after at least 5 secondary data read cycles, just can carry out the data splicing of 5 road videos;If wherein
There is the digital independent failure of a road video, then under also needing to wait that 5 secondary data read cycles could be attempted
Data splicing once.It is easy for that owing to the data splicing waiting time is long card, loss picture occur
Etc. phenomenon.
And in the technical scheme of the embodiment of the present invention, when each data read cycle arrives in a parallel fashion
Read the data of 5 road videos;So, after 1 secondary data read cycle, can be carried out data splicing
Task;If wherein there being the digital independent failure of a road video, then, read in upper data once
Take the data that can continue to read this road video in the cycle, and after upper data read cycle once just
Can again attempt to carry out data splicing.
So, each data read cycle reads the data of each road video simultaneously, compared to existing
Technology only reads the scheme of a road video data in each data read cycle, on the one hand the present invention
Technical scheme considerably increases the reading machine meeting of every road video data, the most just considerably increases every road video
The acquisition probability of data, improves the success rate of splicing every time, contributes to reducing card, losing picture etc.
The appearance of phenomenon;On the other hand, the data splicing waiting time is also greatly shortened compared to prior art,
Similarly help to reduce card, minimizing cache overflow chance, reduce the appearance losing the phenomenons such as picture.
Describe the technical scheme of the embodiment of the present invention below in conjunction with the accompanying drawings in detail.
Based on above-mentioned thinking, the multi-channel video splicing of a kind of cloud instructor in broadcasting's platform that the embodiment of the present invention provides is broadcast
Putting method, idiographic flow is as in figure 2 it is shown, comprise the steps:
Step S201: cloud instructor in broadcasting's platform, when data read cycle arrives, reads and store each in a parallel fashion
The data of road video.
Specifically, cloud instructor in broadcasting's platform, when each data read cycle arrives, is distinguished with multiple thread parallels
Read and store the data of each road video: each thread performs digital independent and the storage of each road video respectively
Task.Wherein, the process of the digital independent store tasks that thread performs a road video is as follows:
Thread sends the request of this road video data to rtmp server, sets up rtmp service after connecting
Device returns the data of this road video;
Thread is after the data reading this road video, by the team of the data buffer storage of reading to this road video
In row.Further, the queue that queue is FIFO of each road video.The most first it is deposited in queue
Video requency frame data just first can read out from queue in subsequent step.
Step S202: cloud instructor in broadcasting's platform, when data stitching cycle arrives, identifies the smallest sequence number of caching
Frame of video, the sequence number of the frame of video that will identify that is as sequence number to be spliced.
In this step, cloud instructor in broadcasting's platform is when data stitching cycle arrives, from the queue being cached in each road video
In frame of video in, identify the frame of video of smallest sequence number.
Further, in the case of the queue of each road video is FIFO, cloud instructor in broadcasting's platform splices in data
When cycle arrives, can obtain, for every road video, the frame of video being stored at first in the queue of this road video
Sequence number;And then identify smallest sequence number, as sequence number to be spliced from the sequence number obtained.
Wherein, the duration of data stitching cycle can be equal with the duration of above-mentioned data read cycle, or
The duration of person's data stitching cycle is more than the duration of data read cycle.
Step S203: cloud instructor in broadcasting's platform judges the most all there be regarding of sequence number to be spliced in the queue of each road video
Frequently frame;The most then perform step S204;If it is not, the most do not perform this splicing task.
In this step, cloud instructor in broadcasting's platform judges the most all there is sequence number in the queue of each road video and identifies
The frame of video that sequence number to be spliced is identical.
Further, in the case of the queue of each road video is FIFO, cloud instructor in broadcasting's platform can be for often
Road video, it is judged that the sequence number of the frame of video being stored at first in the queue of this road video whether be equal to described in wait to spell
Connect sequence number.
The most then continue executing with following steps S204;If it is not, the most do not perform this splicing task.
Step S204: each frame of video of sequence number to be spliced is read out also from individual queue by cloud instructor in broadcasting's platform respectively
Splice.
In this step, cloud instructor in broadcasting's platform by frame of video identical with the sequence number to be spliced identified for sequence number respectively from
Individual queue reads out, and each frame of video read out is spliced.
Step S205: cloud instructor in broadcasting's platform carries out video playback according to splicing result.
In this step, cloud instructor in broadcasting's platform, according to splicing result, plays out splicing video.For example, it is possible to splicing
The video of multiple picture pick-up devices, obtains panoramic video and plays out.How to carry out video-splicing and can use existing
Some technology, here is omitted.
Need exist for explanation, although above-mentioned steps S201-S205 is to retouch with time order and function order
State, but do not limit the logic precedence relationship between step.Such as, the execution of above-mentioned steps S202 is not
Need to rely on the execution of step S201, but can be triggered by the arrival of data stitching cycle and perform.
Based on above-mentioned method, the internal structure of a kind of cloud instructor in broadcasting's platform that the embodiment of the present invention provides, such as figure
Shown in 3, including: video data read module 301, video data concatenation module 302.
Video data read module 301, for when data read cycle arrives, reads each in a parallel fashion
The data of road video;And for every road video, by the data buffer storage that reads to the queue of this road video.
Specifically, video data read module 301 is when data read cycle arrives, with multiple thread parallels ground
Read the data of each road video respectively: i.e. for a road video, read the number of this road video with a thread
According to, and by the data buffer storage of reading to the queue of this road video.Further, the queue of each road video is
First Input First Output.
Video data concatenation module 302, for when data stitching cycle arrives, identifies the minimum of caching
The frame of video of sequence number;After all having the frame of video of this sequence number in the queue judging each road video, should
Each frame of video of sequence number reads out from individual queue respectively and splices.
Further, cloud instructor in broadcasting's platform of the embodiment of the present invention also includes: video playback module 303.
Video playback module 303 is for carrying out video according to the splicing result of video data concatenation module 302
Play.
A kind of concrete internal structure of above-mentioned video data concatenation module 302, as shown in Figure 4, including such as
Lower unit: smallest sequence number recognition unit 401, judging unit 402, concatenation unit 403.
Smallest sequence number recognition unit 401, for when data stitching cycle arrives, identifies described video counts
According to the frame of video of the smallest sequence number that read module is cached in individual queue, will identify that sequence number is as to be spliced
Sequence number exports to judging unit 402;Further, in the feelings that queue is First Input First Output of each road video
Under condition, smallest sequence number recognition unit 401 is when data stitching cycle arrives, and for every road video, obtains
The sequence number of the frame of video being stored at first in the queue of this road video;Foreword is identified from the sequence number obtained
Number, export as sequence number to be spliced.
After judging unit 402 is used for receiving the sequence number to be spliced that smallest sequence number recognition unit 401 exports,
Judge the frame of video the most all having described sequence number to be spliced in the queue of each road video;The most then to spelling
Order unit 403 sends splicing notice;Further, in the feelings that queue is First Input First Output of each road video
Under condition, it is judged that unit 402 is for every road video, it is judged that the video being stored at first in the queue of this road video
Whether the sequence number of frame is equal to described sequence number to be spliced;If so, splicing notice is sent.
After the splicing notice that concatenation unit 403 sends for receiving judging unit 402, described waiting is spelled
The each frame of video connecing sequence number reads out from individual queue respectively and splices.
In the technical scheme of the embodiment of the present invention, due to when data read cycle arrives, in a parallel fashion
Read and cache the data of each road video;When data stitching cycle arrives, by each video of smallest sequence number
Frame reads out from individual queue respectively and splices;So, read in each data compared to prior art
Taking the scheme only reading a road video data in the cycle, on the one hand technical scheme is greatly increased
The reading machine meeting of Liao Mei road video data, the most just considerably increases the acquisition probability of every road video data,
Improve the success rate of each splicing, contribute to reducing the appearance of the phenomenons such as card, loss picture;Another
Aspect, can carry out data splicing after a data read cycle, and the data splicing waiting time is compared
Also it is greatly shortened in prior art, similarly helps to reduce card, reduce cache overflow chance, minimizing
Lose the appearance of the phenomenons such as picture.
Those skilled in the art of the present technique are appreciated that the present invention includes relating to performing described herein
One or more equipment in operation.These equipment can be required purpose and specialized designs and manufacture,
Or the known device in general purpose computer can also be included.These equipment have storage calculating within it
Machine program, these computer programs optionally activate or reconstruct.Such computer program can be deposited
Store up in equipment (such as, computer) computer-readable recording medium or be stored in and be suitable to store e-command difference
Being coupled in any kind of medium of bus, described computer-readable medium includes but not limited to any class
The dish (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk) of type, ROM (Read-Only
Memory, read only memory), RAM (Random Access Memory, memorizer immediately),
EPROM (Erasable Programmable Read-Only Memory, the read-only storage of erasable programmable
Device), (Electrically Erasable Programmable Read-Only Memory, electricity can for EEPROM
EPROM), flash memory, magnetic card or light card.It is, computer-readable recording medium includes
By equipment (such as, computer) with the form storage that can read or any medium of transmission information.
Those skilled in the art of the present technique are appreciated that and can realize these structures with computer program instructions
Frame in each frame in figure and/or block diagram and/or flow graph and these structure charts and/or block diagram and/or flow graph
Combination.Those skilled in the art of the present technique are appreciated that and can be supplied to by these computer program instructions
The processor of general purpose computer, special purpose computer or other programmable data processing methods realizes, thus
Structure chart disclosed by the invention is performed by the processor of computer or other programmable data processing methods
And/or the scheme specified in block diagram and/or the frame of flow graph or multiple frame.
Those skilled in the art of the present technique be appreciated that the present invention had discussed various operations, method,
Step in flow process, measure, scheme can be replaced, changed, combined or deleted.Further, tool
There are the various operations discussed in the present invention, method, other steps in flow process, measure, scheme
Can also be replaced, changed, reset, decomposed, combined or deleted.Further, of the prior art
Have with the step in the various operations disclosed in the present invention, method, flow process, measure, scheme can also
Replaced, changed, reset, decomposed, combined or deleted.
Those of ordinary skill in the field are it is understood that the discussion of any of the above embodiment is merely illustrative
, it is not intended that hint the scope of the present disclosure (including claim) is limited to these examples;At this
Under bright thinking, can also be combined between the technical characteristic in above example or different embodiment,
Step can realize with random order, and exist the present invention as above different aspect many other
Change, for they not offers in details simple and clear.Therefore, all the spirit and principles in the present invention it
In, any omission of being made, amendment, equivalent, improvement etc., should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a multi-channel video joining method, it is characterised in that including:
When data read cycle arrives, read the data of each road video in a parallel fashion;
For every road video, by the data buffer storage that reads to the queue of this road video;
When data stitching cycle arrives, identify the frame of video of the smallest sequence number of caching;And
After judging the queue of each road video all has the frame of video of this sequence number, by each video of this sequence number
Frame reads out from individual queue respectively and splices.
Method the most according to claim 1, it is characterised in that also include: enter according to splicing result
Row video playback.
Method the most according to claim 1 and 2, it is characterised in that described in identify caching
The frame of video of little sequence number, specifically includes:
For every road video, obtain the sequence number of the frame of video being stored at first in the queue of this road video;
Smallest sequence number is identified, as sequence number to be spliced from the sequence number obtained.
Method the most according to claim 1 and 2, it is characterised in that described in judge each road video
Queue in all have the frame of video of this sequence number after, each frame of video of this sequence number is read respectively from individual queue
Take out, specifically include:
For every road video, it is judged that whether the sequence number of the frame of video being stored at first in the queue of this road video is etc.
In described sequence number to be spliced;If so, the frame of video of this sequence number is read out from described queue.
Method the most according to claim 1 and 2, it is characterised in that described data stitching cycle
Duration equals to or more than described data read cycle.
6. cloud instructor in broadcasting's platform, it is characterised in that including:
Video data read module, for when data read cycle arrives, reads each road in a parallel fashion
The data of video;For every road video, by the data buffer storage that reads to the queue of this road video;
Video data concatenation module, for when data stitching cycle arrives, identifies the foreword of caching
Number frame of video;And after judging the queue of each road video all has the frame of video of this sequence number, by this sequence
Number each frame of video read out from individual queue respectively and splice.
Cloud instructor in broadcasting's platform the most according to claim 6, it is characterised in that also include:
Video playback module, broadcasts for carrying out video according to the splicing result of described video data concatenation module
Put.
8. according to the cloud instructor in broadcasting's platform described in claim 6 or 7, it is characterised in that described video data is spelled
Connection module specifically includes:
Smallest sequence number recognition unit, for when data stitching cycle arrives, identifies described video data
The frame of video of the smallest sequence number that read module is cached in individual queue, will identify that sequence number is as sequence to be spliced
Number output;
Judging unit, for receiving the sequence number to be spliced of described smallest sequence number recognition unit output, and judges
The queue of each road video the most all has the frame of video of described sequence number to be spliced;The most then send splicing
Notice;
Concatenation unit, after being used for receiving described splicing notice, by each frame of video of described sequence number to be spliced
Read out from individual queue respectively and splice.
9. according to the cloud instructor in broadcasting's platform described in claim 6 or 7, it is characterised in that described queue is for first to enter
The queue first gone out.
10. according to the cloud instructor in broadcasting's platform described in claim 6 or 7, it is characterised in that described data are spliced
The duration in cycle equals to or more than described data read cycle.
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CN108495141A (en) * | 2018-03-05 | 2018-09-04 | 网宿科技股份有限公司 | A kind of synthetic method and system of audio and video |
CN108600803A (en) * | 2018-04-10 | 2018-09-28 | 普联技术有限公司 | Back method, device, terminal device and the storage medium of multi-channel video code stream |
CN111147943A (en) * | 2019-12-23 | 2020-05-12 | 大峡谷照明系统(苏州)股份有限公司 | Multimedia light linkage playing method and device, computer equipment and storage medium |
CN111918096A (en) * | 2020-07-21 | 2020-11-10 | 上海网达软件股份有限公司 | Method, device and equipment for fast switching input source of cloud director and storage medium |
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