CN105307010B - The video uploading system and method for a kind of cloud net cast platform - Google Patents
The video uploading system and method for a kind of cloud net cast platform Download PDFInfo
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- CN105307010B CN105307010B CN201510781196.7A CN201510781196A CN105307010B CN 105307010 B CN105307010 B CN 105307010B CN 201510781196 A CN201510781196 A CN 201510781196A CN 105307010 B CN105307010 B CN 105307010B
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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]
- H04N21/40—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
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/44029—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display for generating different versions
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
Abstract
The invention discloses a kind of video method for uploading of cloud net cast platform, first, the video data of camera collection is received by local agent, performs video quality adjustment according to the comprehensive video value locally preserved, uploads, local data cache task；Secondly, the video data uploaded by cloud server local proxy server, response user's request supplies user's live viewing online, while updates comprehensive video and be worth and be back to local proxy server, sorts and uses for next video data.Correspondingly the invention also discloses a kind of corresponding system.The present invention substantially increases the efficiency of transmission of high value video data, further makes the use of current bandwidth more rationally and efficient；Meanwhile present invention accomplishes the net cast demand of different user, improve Consumer's Experience.
Description
Technical field
The invention belongs to the online direct seeding technique field of cloud net cast platform, more particularly, to a kind of cloud net cast
The video uploading system and method for platform.
Background technology
When needing to upload onto the server multiple camera real time video datas under LAN, often because from local
Net is limited to wide area network uploading bandwidth, and slack phenomenon is played when causing to occur providing a user direct broadcast service.
In order to further solve the problems, such as that uploading bandwidth is limited, upload is reduced typically merely by video quality is reduced at present
Data volume, so as to alleviate the limited pressure of uploading bandwidth.In the art, the method for uploading data volume is reduced mainly including reducing
Resolution ratio and frame per second.Under normal circumstances, the resolution ratio of image is higher, comprising pixel it is more, image is more clear, but number
It is also bigger according to measuring, so reducing the definition that resolution ratio will have a strong impact on video；How much is appearance per second in frame per second i.e. video
Video image is opened, is the principal element for determining video fluency, the picture of the more high broadcasting per second of frame per second is more, and video is also got over
Smoothness, but the data volume taken is also bigger, so reducing frame per second will result directly in the decline of video playback fluency.
Therefore, there is following defect in the existing method for uploading data volume that reduces：(1) without fully attention high-quality user
Experience and the value of video in itself, cause the live-experience of high-quality user to decline, while also largely weaken height
It is worth the role and influence of video；(2) due to not accounting for the video request and video value of each class user, nothing is often led to
Value or low value video equality enjoy uploading bandwidth, make limited current bandwidth not obtain more adequately and reasonably utilizing.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides on a kind of cloud net cast platform video
System and method is passed, the comprehensive video by setting camera is worth to determine the priority and matter of the upload of camera video data
Amount, so as to ensure that current bandwidth uploads the video of optimum value in real time.Meanwhile in particular for the video data of upload,
The present invention distinguishes specific design comprehensive video value estimations methods, current bandwidth distribution method, frame per second and resolution ratio estimation side
Method, accordingly can effectively solve the problem that how current bandwidth by limited time, smoothness is carried out in the case where ensureing high value video quality
The problem of net cast, it is therefore particularly suitable for the online live application scenario of cloud service platform video.
To achieve the above object, the present invention proposes a kind of video uploading system of cloud net cast platform, the system
Including network hard disc CD writer, local agent, remote server, client and at least one camera, it is characterised in that at this
In system：
The camera, it is connected with the network hard disc CD writer by LAN or is directly connected with local agent, is used
In collection video data and send to network hard disc CD writer or local agent；
The network hard disc CD writer, for managing connected camera, and preserve the video of each camera collection
Data Concurrent delivers to local agent；
The local agent, the comprehensive video for obtaining each camera at remote server by internet are worth simultaneously
It is being locally stored, each camera Id is being ranked up from high to low successively according to the comprehensive video value of storage, while described
Ground agency is additionally operable to receive the video data, and is camera Id corresponding to video data distribution, by camera Id's
Priority and current bandwidth upload to the corresponding video data chosen successively：When video data quantity meets current bandwidth
Preferential uploaded videos data bulk when, using the video data as video data to be uploaded, if video data quantity is more than
During the preferential uploaded videos data bulk of current bandwidth, then the video data having more and corresponding camera Id are stored in this
Ground, remote server is uploaded to again when bandwidth has residue；
The remote server, it is attached with local agent by internet, for receiving and preserving local agent
The video data of biography and corresponding camera Id；It is additionally operable to receive user's request that client is sent, asks to estimate according to user
User value and camera intrinsic value, the comprehensive video after being updated be worth and return it to local agent；Simultaneously
User for customer in response end is asked, and video data is sent to client；
The client, it is connected with the remote server by internet, please for sending user to remote server
Ask, while receive the video data of remote server transmission, net cast is carried out for user.
As it is further preferred that the local agent obtains video data from the network hard disc CD writer and is each
After camera Id corresponding to the video data distribution of camera, it can be preserved in the form of video file, while can also video text
The form of part is uploaded to remote server, wherein, video file is named with corresponding camera Id and timestamp.
As it is further preferred that the remote server receives the video file, from the filename of the video file
In parse camera Id and timestamp and be saved into local data base.
As it is further preferred that the local agent can treat uploaded videos data carry out transcoding, adjustment resolution ratio with
After frame per second, then upload to remote server.
In addition, the present invention also proposes a kind of video method for uploading of cloud net cast platform, it is characterised in that methods described
Specifically include：
(1) local agent receives the video data that camera collects, and to be taken the photograph corresponding to video data distribution
As head Id, while preserve the video data and corresponding camera Id；
(2) local agent enters from high to low to camera Id successively according to the comprehensive video value of the camera locally preserved
Row sequence, and the corresponding video data chosen is uploaded successively by camera Id priority and current bandwidth：When regarding
When frequency data bulk meets the preferential uploaded videos data bulk of current bandwidth, using the video data as video counts to be uploaded
According to if video data quantity is more than the preferential uploaded videos data bulk of current bandwidth, by the video data having more and right
The camera Id answered is stored in local, and remote server is uploaded to again when bandwidth has residue；
(3) after remote server receives the video data that local agent uploads, itself and corresponding camera Id storages are arrived
In local data base；
(4) remote server receives user's request that client is sent, video data corresponding to transmission；Meanwhile according to
The user's value and camera intrinsic value, the comprehensive video after being updated of family request estimation are worth and return it to local
Agency；
(5) after local agent gets the video value, it is saved into local sorted for next video file and uses.
As it is further preferred that in step (4), whether user's value can entered according to camera for user
Row direct broadcast service is set, or is set according to member's grade of user.
As it is further preferred that in step (4), the camera intrinsic value is according to camera important in itself
Degree is the initial value of camera distribution, or is the camera initial value being allocated according to camera historical value, or
For the camera intrinsic value set by man-machine interaction mode.
As it is further preferred that comprehensive video value is specially：
Wherein, ViIt is worth for camera i comprehensive video, Vi 0For camera i intrinsic values, NiTo watch camera
I video user number, VimTo watch the user of camera i m-th of user value, w0And w1Represent that camera is consolidated respectively
Valuable weight and user are worth weight, and w0+w1=1.
As it is further preferred that the priority and system bandwidth by camera Id regards to corresponding selection successively
Frequency specifically includes according to being uploaded：
All camera Id quantity is N in LAN, and N number of camera Id is arranged from high to low according to comprehensive video value
After sequence, video data corresponding to M camera Id is as video data to be uploaded before being chosen according to current bandwidth, M≤N, then for
The bandwidth B of wherein k-th camera Id distributionk：
Wherein BmaxFor current bandwidth, VkIt is worth for comprehensive video corresponding to k-th of camera；If Bk＜ Bmin, then adjust and treat
Id number M=M-C of camera corresponding to uploaded videos data；IfThen adjust uploaded videos file
Number M=M+C, wherein, C is empirical parameter, default value 1, BminRequired most small band is uploaded for the single video of systemic presupposition
It is wide；
According to the bandwidth B of distributionkVideo data corresponding to preceding M camera Id is uploaded；In addition, local preserve the
Video data corresponding to M+1 to n-th camera Id, is uploaded again when bandwidth has residue.
As it is further preferred that the local agent can treat uploaded videos data carry out transcoding, adjustment resolution ratio with
After frame per second, then remote server is uploaded to, specifically included：
First, the resolution ratio asked according to client user, estimate that corresponding camera k needs the video resolution provided
Dz；
Then, after being compressed by video compression algorithm, the average amount for obtaining single-frame images is Z, then video data
Frame per secondWherein, BkIt is the bandwidth for k-th of camera Id distribution.
In general, by the contemplated above technical scheme of the present invention compared with prior art, mainly possess following
Technological merit：
1. video uploading system and the corresponding method of cloud net cast platform provided by the invention, can in real time according to
Family request estimation user's value, in combination with camera intrinsic value, obtain corresponding to comprehensive video value, current bandwidth by
Under conditions of limit, the efficiency of transmission of high value video data is substantially increased, so as to which the stream of user video broadcasting be effectively ensured
Smooth degree.
2. present invention is more particularly directed towards camera Id corresponding to video file to be uploaded, current bandwidth is allocated, enters one
Step makes the use of current bandwidth more rationally and efficient.
3. simultaneously, the present invention, according to user's request and current bandwidth, treats on the basis of current bandwidth reasonable distribution
The definition for passing camera corresponding to video data is estimated, so as to meet the net cast demand of different user, improves
Consumer's Experience.
Brief description of the drawings
Fig. 1 is a kind of video uploading system structural framing figure of cloud net cast platform；
Fig. 2 is a kind of video method for uploading flow chart of cloud net cast platform；
Fig. 3 is a kind of video uploading system user's playing flow figure of cloud net cast platform.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is a kind of video uploading system structural framing figure of cloud net cast platform, as shown in the figure：
Camera 1, camera 2：Multiple cameras in LAN, it is attached with network hard disc CD writer NVR, by
The video data of NVR unified management camera collections.
Camera 3：The camera directly linked with local agent.This camera typically uses web camera (Ip
Camera)；
The network hard disc CD writer NVR：For managing connected camera, and preserve regarding for each camera collection
Frequency Data Concurrent delivers to local agent；
The local agent：Typically undertaken by the main frame that can connect outer net.For by internet from remote server
The comprehensive video that place obtains each camera is worth and is being locally stored, and is worth according to the comprehensive video of storage successively to each camera
Id is ranked up from high to low, while the local agent is additionally operable to receive the video data, and is the video data point
With corresponding camera Id, the corresponding video data chosen is carried out successively by camera Id priority and current bandwidth
Pass：When video data quantity meets the preferential uploaded videos data bulk of current bandwidth, using the video data as treating on
Video data is passed, if video data quantity is more than the preferential uploaded videos data bulk of current bandwidth, the video that will have more
Data and corresponding camera Id are stored in local, and remote server is uploaded to again when bandwidth has residue；
The remote server：It is attached with local agent by internet, for receiving and preserving local agent
The video data of biography and corresponding camera Id；It is additionally operable to receive user's request that client is sent, asks to estimate according to user
User value and camera intrinsic value, the comprehensive video after being updated be worth and return it to local agent；Simultaneously
User for customer in response end is asked, and video data is sent to client；
The client：It is connected with the remote server by internet, please for sending user to remote server
Ask, while receive the video data of remote server transmission, net cast is carried out for user.Can be mobile phone mobile client and
Pc clients.
In said system, the local agent obtains video data from the network hard disc CD writer and is each shooting
Corresponding to the video data distribution of head after camera Id, it can be preserved in the form of video file, while can also video file
Form is uploaded to remote server, wherein, video file is named with corresponding camera Id and timestamp.Similarly, it is described remote
Journey server receives the video file, and camera Id and timestamp are parsed from the filename of the video file and is protected
It is stored in local data base.
The local agent can also treat uploaded videos data and carry out transcoding, after adjusting resolution ratio and frame per second, then upload to
Remote server.
Within the system, the client can ask directly to specify video data corresponding to camera Id acquisitions by user
Video playback is carried out, or carries out net cast from video data corresponding to server pull camera Id indirectly,.
Fig. 2 is a kind of video method for uploading flow chart of cloud net cast platform.Comprise the following steps that：
(1) local agent receives the video data that camera collects, and to be taken the photograph corresponding to video data distribution
As head Id, while preserve the video data and corresponding camera Id；
(2) local agent enters from high to low to camera Id successively according to the comprehensive video value of the camera locally preserved
Row sequence, and the corresponding video data chosen is uploaded successively by camera Id priority and current bandwidth：When regarding
When frequency data bulk meets the preferential uploaded videos data bulk of current bandwidth, using the video data as video counts to be uploaded
According to if video data quantity is more than the preferential uploaded videos data bulk of current bandwidth, by the video data having more and right
The camera Id answered is stored in local, and remote server is uploaded to again when bandwidth has residue；
It is further preferred that the priority and system bandwidth by camera Id is successively to the corresponding video counts chosen
According to being uploaded, specifically include：
All camera Id quantity is N in LAN, and N number of camera Id is arranged from high to low according to comprehensive video value
After sequence, video data corresponding to M camera Id is as video data to be uploaded before being chosen according to current bandwidth, M≤N, then for
The bandwidth B of wherein k-th camera Id distributionk：
Wherein BmaxFor current bandwidth, VkIt is worth for comprehensive video corresponding to k-th of camera；If Bk＜ Bmin, then adjust and treat
Id number M=M-C of camera corresponding to uploaded videos data；IfThen adjust uploaded videos file
Number M=M+C, wherein, C is empirical parameter, default value 1, BminRequired most small band is uploaded for the single video of systemic presupposition
It is wide；
According to the bandwidth B of distributionkVideo data corresponding to preceding M camera Id is uploaded；In addition, local preserve the
Video data corresponding to M+1 to n-th camera Id, is uploaded again when bandwidth has residue.
In addition, the local agent, which can treat uploaded videos data, carries out transcoding, after adjusting resolution ratio and frame per second, then upload
To remote server, specifically include：
First, the resolution ratio asked according to client user, estimate that corresponding camera k needs the video resolution provided
Dz, the estimation of the resolution ratio can use a variety of strategies, for example can be the ultimate resolution used in all users, Ke Yishi
The most resolution ratio of live user or the average mark resolution of multiple users., can be by the resolution ratio of user's request in practical application
Into limited kind, for example, high definition, SD is smooth three kinds.
Then, after being compressed by video compression algorithm (such as H264, H265), the average amount for obtaining single-frame images is Z,
The then frame per second of video dataWherein, BkIt is the bandwidth for k-th of camera Id distribution.
(3) after remote server receives the video data that local agent uploads, itself and corresponding camera Id storages are arrived
In local data base；
(4) remote server receives user's request that client is sent, video data corresponding to transmission；Meanwhile according to
The user's value and camera intrinsic value, the comprehensive video after being updated of family request estimation are worth and return it to local
Agency；
Wherein, the renewal for comprehensive video value specifically includes：
(1) assessment of camera intrinsic value
First, can be that camera distributes camera intrinsic value, such as important position according to the significance level of camera in itself
The camera value put is high, and the camera value of remote location is low；Secondly, can be according to camera with history valency after system reboot
Value is judged, if historical value is high, the camera intrinsic value is just high；Alternatively, it is also possible to passing through man-machine interaction side
Formula sets camera intrinsic value.
(2) assessment of user's value
The present invention is that bandwidth is given to the user for most having demand or most worthy, therefore user's value can be entered according to two aspects
Row setting：
On the one hand, by live camera it is being that user needs most, therefore, to provide a user live clothes
The camera of business distributes higher value；
On the other hand, typically there is different system values, such as member's hierarchy using the live user of system, because
This, user's value can also be set according to user member's grade, user profile commercial value or social value etc..
(3) setting of comprehensive video value
Comprehensive video value is worth according to camera intrinsic value and user and carries out synthetic determination.Comprehensive video Determination of Value
The priority and video quality of bandwidth are used during each camera progress video upload, then, the comprehensive video value is specially：
Wherein, ViIt is worth for camera i comprehensive video, Vi 0For camera i intrinsic values, NiTo watch camera
I video user number, VimTo watch the user of camera i m-th of user value, w0And w1Represent that camera is consolidated respectively
Valuable weight and user are worth weight, and w0+w1=1.
(5) after local agent gets the video value, it is saved into local sorted for next video file and uses.
Fig. 3 is client terminal playing flow chart, represents to combine user's value and camera intrinsic value, remote server renewal
The process of comprehensive video value.Step is as follows：
(4-1) user starts client；
User's request that (4-2) user is sent by client is directly specified camera Id or drawn indirectly from remote server
Take camera Id；
(4-3) server receives the request, and recalculates synthesis according to user's value and camera intrinsic value
Video value.
System involved in the present invention includes local proxy server, Cloud Server and client three parts.Local agent
It is connected by LAN with multiple cameras or NVR, and is responsible for performing video quality adjustment, uploads, local data cache times
Business.Cloud Server is responsible for video storage, forwarding, and user's value, camera video value, comprehensive value update and calculated, and lead to
Cross network and video value is returned into local proxy server.
Compared with prior art, using bandwidth when the present invention is by judging comprehensive video value to judge to image overhead pass
Priority and video quality.The beneficial effects of the invention are as follows most can not only efficiently utilize limited uploading bandwidth, and guarantee
The camera of most worthy obtains uploading bandwidth.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of video uploading system of cloud net cast platform, the system includes network hard disc CD writer, local agent, remote
Journey server, client and at least one camera, it is characterised in that within the system：
The camera, it is connected with the network hard disc CD writer by LAN or is directly connected with local agent, for adopting
Collect video data and send to network hard disc CD writer or local agent；
The network hard disc CD writer, for managing connected camera, and preserve the video data of each camera collection
And send to local agent；
The local agent, the comprehensive video for obtaining each camera at remote server by internet are worth and at this
Ground is stored, and each camera Id is ranked up from high to low successively according to the comprehensive video value of storage, while the local generation
Reason is additionally operable to receive the video data, and is camera Id corresponding to video data distribution, by the preferential of camera Id
Order and current bandwidth upload to the corresponding video data chosen successively：When video data quantity meets the excellent of current bandwidth
During first uploaded videos data bulk, using the video data as video data to be uploaded, if video data quantity is more than current
During the preferential uploaded videos data bulk of bandwidth, then the video data having more and corresponding camera Id are stored in local, treated
Bandwidth is uploaded to remote server again when having residue；
The remote server, it is attached with local agent by internet, for receiving and preserving local agent upload
Video data and corresponding camera Id；It is additionally operable to receive user's request that client is sent, the use of estimation is asked according to user
Family is worth and camera intrinsic value, the comprehensive video after being updated are worth and return it to local agent；It is used for simultaneously
User's request at customer in response end, video data is sent to client；
The client, it is connected with the remote server by internet, for sending user's request to remote server, together
When receive remote server send video data, for user carry out net cast.
2. the system as claimed in claim 1, it is characterised in that the local agent obtains from the network hard disc CD writer
Video data and for that after camera Id, can be preserved corresponding to the video data distribution of each camera in the form of video file, together
When can also the form of video file be uploaded to remote server, wherein, video file is with corresponding camera Id and timestamp
Name.
3. system as claimed in claim 2, it is characterised in that the remote server receives the video file, is regarded from this
Camera Id and timestamp are parsed in the filename of frequency file and is saved into local data base.
4. system as claimed in claim 1 or 2, it is characterised in that the local agent can treat the progress of uploaded videos data
Transcoding, after adjusting resolution ratio and frame per second, then upload to remote server.
5. a kind of video method for uploading of cloud net cast platform, it is characterised in that methods described specifically includes：
(1) local agent receives the video data that camera collects, and is camera corresponding to video data distribution
Id, while preserve the video data and corresponding camera Id；
(2) local agent is arranged camera Id from high to low successively according to the comprehensive video value of the camera locally preserved
Sequence, and the corresponding video data chosen is uploaded successively by camera Id priority and current bandwidth：Work as video counts
When data bulk meets the preferential uploaded videos data bulk of current bandwidth, using the video data as video data to be uploaded,
If video data quantity is more than the preferential uploaded videos data bulk of current bandwidth, by the video data having more and corresponding
Camera Id is stored in local, and remote server is uploaded to again when bandwidth has residue；
(3) after remote server receives the video data that local agent uploads, by itself and corresponding camera Id storage to local
In database；
(4) remote server receives user's request that client is sent, video data corresponding to transmission；Meanwhile please according to user
Ask the user of estimation to be worth to be worth with camera intrinsic value, the comprehensive video after being updated and return it to local generation
Reason；
(5) after local agent gets the video value, it is saved into local sorted for next video data and uses.
6. method as claimed in claim 5, it is characterised in that in step (4), user's value can be according to camera
It is no to be set for user's progress direct broadcast service, or set according to member's grade of user.
7. method as claimed in claim 5, it is characterised in that in step (4), taken the photograph according to the camera intrinsic value
As the initial value that the significance level of head itself is camera distribution, or the shooting to be allocated according to camera historical value
Head initial value, or the camera intrinsic value to be set by man-machine interaction mode.
8. method as claimed in claim 5, it is characterised in that the comprehensive video, which is worth, is specially：
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Wherein, ViIt is worth for camera i comprehensive video, Vi 0For camera i intrinsic values, NiTo watch regarding for camera i
Frequency number of users, VimTo watch the user of camera i m-th of user value, w0And w1The intrinsic valency of camera is represented respectively
It is worth weight and user is worth weight, and w0+w1=1.
9. method as claimed in claim 8, it is characterised in that the priority and system bandwidth by camera Id is successively
The corresponding video data chosen is uploaded, specifically included：
All camera Id quantity is N in LAN, and N number of camera Id is sorted from high to low according to comprehensive video value
Afterwards, video data M≤N, is then it as video data to be uploaded corresponding to M camera Id before being chosen according to current bandwidth
In k-th camera Id distribution bandwidth Bk：
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<mi>M</mi>
</msubsup>
<msub>
<mi>V</mi>
<mi>i</mi>
</msub>
</mrow>
</mfrac>
</mrow>
Wherein BmaxFor current bandwidth, VkIt is worth for comprehensive video corresponding to k-th of camera；If Bk＜ Bmin, then adjust to be uploaded
Id number M=M-C of camera corresponding to video data；IfThen adjust uploaded videos file number M
=M+C, wherein, C is empirical parameter, default value 1, BminRequired minimum bandwidth is uploaded for the single video of systemic presupposition；
According to the bandwidth B of distributionkVideo data corresponding to preceding M camera Id is uploaded；In addition, the local M+1 that preserves is arrived
Video data corresponding to n-th camera Id, is uploaded again when bandwidth has residue.
10. method as claimed in claim 5, it is characterised in that the local agent can treat uploaded videos data and be turned
Code, after adjusting resolution ratio and frame per second, then remote server is uploaded to, specifically included：
First, the resolution ratio asked according to client user, estimate that corresponding camera k needs the video resolution D providedz；
Then, after being compressed by video compression algorithm, the average amount for obtaining single-frame images is Z, then video data frame per secondWherein, BkIt is the bandwidth for k-th of camera Id distribution.
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| CN108881967A (en) * | 2018-08-01 | 2018-11-23 | 广发证券股份有限公司 | A kind of video method for uploading, device and equipment based on machine learning |
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