CN105847709A - Cloud program directing station and multi-channel video stitching method - Google Patents

Cloud program directing station and multi-channel video stitching method Download PDF

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Publication number
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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CN
China
Prior art keywords
video
sequence number
data
queue
frame
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Pending
Application number
CN201610195433.6A
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Chinese (zh)
Inventor
李兴玉
白茂生
魏伟
边智
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LeTV Holding Beijing Co Ltd
LeTV Cloud Computing Co Ltd
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LeTV Holding Beijing Co Ltd
LeTV Cloud Computing Co Ltd
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Priority to CN201610195433.6A priority Critical patent/CN105847709A/en
Publication of CN105847709A publication Critical patent/CN105847709A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • H04N5/2624Studio 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio 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
    • H04N5/265Mixing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television 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

Cloud instructor in broadcasting's platform and multi-channel video joining method
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.
CN201610195433.6A 2016-03-30 2016-03-30 Cloud program directing station and multi-channel video stitching method Pending CN105847709A (en)

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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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Application publication date: 20160810