CN107257497A - A kind of net cast method for being capable of cross-platform browser - Google Patents
A kind of net cast method for being capable of cross-platform browser Download PDFInfo
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- CN107257497A CN107257497A CN201710455585.XA CN201710455585A CN107257497A CN 107257497 A CN107257497 A CN 107257497A CN 201710455585 A CN201710455585 A CN 201710455585A CN 107257497 A CN107257497 A CN 107257497A
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- Prior art keywords
- user
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- dictionary
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a kind of net cast method for being capable of cross-platform browser, methods described carries out dynamic transcoding in real time using ffmpeg and J2EE technological means by the video gathered to camera, finally user is set to see the live of camera glibly in front end, the problem of solving resource utilization and camera video stream various protocols compatibility issue, single server can be enable to manage the live of thousands of cameras up to a hundred, user's hardware cost and server energy consumption is greatly reduced.
Description
Technical field
The present invention relates to net cast field, in particular it relates to it is a kind of can with cross-platform browser through dynamic transcoding
Net cast method.
Background technology
With the progress and development of science and technology, net cast is increasingly becoming popular object, and net cast product, platform etc. are constantly
Emerge in large numbers, and there is following technical problem in existing net cast：
1st, traditional mobile monitor needs special mobile phone application to support, it is impossible to meet the requirement of modern social networks
(such as wechat, microblogging is shared)；
2nd, traditional live path is fixed, network resources waste；
3rd, traditional camera is live is directly exposed to outer net by camera reference address, it is impossible to ensure personal secrets；
4th, traditional camera live broadcast system is related to specific producer, poor compatibility.
The content of the invention
The invention provides a kind of net cast method for being capable of cross-platform browser, solve existing net cast and exist
The problem of resource utilization and camera video stream various protocols compatibility issue, realizing can enable single server to manage into
Thousand cameras up to a hundred it is live, greatly reduce the technique effect of user's hardware cost and server energy consumption.
In order to solve the above technical problems, this application provides a kind of net cast method for being capable of cross-platform browser, institute
The method of stating includes：
Step 1：The live path that user needs to access by terminal request, and Transfer Parameters camera id；
Step 2：Server is by a key-value pair of user id and initial time composition and is put into a user profile dictionary
It is interior；
Step 3：Camera source address collection video information of the server according to corresponding to the camera id that user asks；It is right
The video flowing collected carries out HLS protocol transcoding, and the dictionary of the transcoding progress information and step 2 is encapsulated as into one turn together
Code object, then the key-value pair that camera id and the transcoding object are constituted are put into a Global Dictionary；
Step 4：Address after transcoding is returned to user by server, and user accesses live according to return address；
Step 5：User periodically transmit a request to server, server taking the photograph in required parameter when watching live
As head id finds corresponding transcoding object from global field, then by the user id in required parameter from the use in transcoding object
The corresponding time surplus value of the user is found in the dictionary of information of family, and time surplus value is come plus a time constant with this
Ensure that the video continues transcoding；
Step 6：Server creates the key-value pair in a timed task, regular visit Global Dictionary, is taken from key-value pair
Go out transcoding object, then user profile dictionary is taken out from transcoding object, the user profile dictionary is sky if finding, by the key assignments
To being removed in Global Dictionary；Otherwise continue all time surplus values in polling user dictionary of information, time surplus value is subtracted
A time constant is removed, if the value after subtracting is more than 0, is retained, if less than 0, by the key-value pair from user profile dictionary
In remove.
This programme carries out dynamic in real time by the video gathered to camera using ffmpeg and J2EE technological means and turned
Code, finally enables user see the live of camera glibly in front end.The problem of solving resource utilization and camera are regarded
Frequency stream various protocols compatibility issue, can enable single server manage the live of thousands of cameras up to a hundred, greatly reduce
User's hardware cost and server energy consumption.
Further, the step 2 is specially：When user 1 accesses camera, user 1id is user1, camera id
For camera1, user's initial time surplus value is set as C0, will<user1,C0>Key-value pair is stored in a user profile dictionary
users1.The step is mainly used in depositing all user profile of a certain camera.
Further, the step 3 is specifically included：
A java class HLS is stated, such is included with properties：{cameraId:Camera id；users:Map key assignments
To set；process:Transcoding process；start:Time started；uuid:Unique code }；
Transcoding camera rstp protocol video streams are obtained into transcoding process for hls agreements using java operation ffmpeg
Access path after process1, transcoding is path1；
Create and initialize a HLS object hls1 { process=process1；Start=current times；Path=
path1；CamerId=camera1；Users=users1 }；And will<camera1,hls1>Key-value pair is stored in Global Dictionary
hlSmap；
Access path path1 is returned into user again, user can watch live by the path.The step is mainly used in
Deposit transcoding information and its user profile set of all cameras.
Further, the step 5 is specifically included：
User user1 sends request every the C1 times while watching live to server, and transmits user id and take the photograph
As head id, respectively user1 and camera1；
Server finds corresponding value hls1 according to key camera1 from Global Dictionary hLSmap, further according to user1 from hls1
User profile dictionary users1 in find key-value pair<user1,CX>；
It is final with<user1,CX+C1>Override<user1,CX>.The time surplus value of user is added in this way, is used
Family can continue viewing, and this is live.When the step is mainly used in updating residue of the user in a certain camera user profile set
Between be worth, with represent the user still watch it is live.
Further, the step 6 is specifically included：
A timed task is created every the value hlsX, wherein C1 in C1 time poll Global Dictionaries hLSMap<C0；
If hlsX users key-value pair quantity is 0, by the transcoding process processX termination release resources of the hlsX
And remove the hlsX from Global Dictionary hlSMap；Otherwise the value in hlsX user profile dictionary usersX is subtracted into C1,
If the value after subtracting is less than 0, the key-value pair is removed from usersX.The step is mainly used in a certain camera of automatic regular polling
User profile, in time release without any user viewing transcoding process, maximally utilize server resource.
One or more technical schemes that the application is provided, have at least the following technical effects or advantages：
Technical scheme transcoding in the application is HLS (HLS (HTTP Live Streaming), Apple dynamic code rate
Adaptive technique, is mainly used in the audio frequency and video service of PC and Apple terminals, includes the index file of a m3u (8), TS media
Slicing files and key encryptions string file) agreement video flowing, browse cross-platform browser is live, without special control.
Technical scheme in the application improves server resource utilization rate, and server can be taken the photograph according to front end user to some
As head access come dynamic to the camera video stream carry out transcoding, rather than at the very start carry out transcoding wait for quietly user come to visit
Ask, therefore can reasonably utilize server resource, transcoding only is carried out to the camera video stream that user accesses, when user leaves
When accessing a certain camera, can also quick release fall the resource.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention；
Fig. 1 is the schematic flow sheet for the net cast method for being capable of cross-platform browser in the application.
Embodiment
The invention provides a kind of net cast method for being capable of cross-platform browser, solve existing net cast and exist
The problem of resource utilization and camera video stream various protocols compatibility issue, realizing can enable single server to manage into
Thousand cameras up to a hundred it is live, greatly reduce the technique effect of user's hardware cost and server energy consumption.
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting mutually, the application's
Feature in embodiment and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with the other modes in the range of being different from being described herein using other, therefore, protection scope of the present invention is not by under
The limitation of specific embodiment disclosed in face.
Fig. 1 is refer to, this application provides a kind of net cast method for being capable of cross-platform browser, methods described bag
Include：
Step 1：The live path that user needs to access by terminal request, and Transfer Parameters camera id.
Step 2：Server is by a key-value pair of user id and initial time composition and is put into a user profile dictionary
It is interior.
Step 3：Camera source address collection video information of the server according to corresponding to the camera id that user asks；It is right
The video flowing collected carries out HLS protocol transcoding, and the dictionary of the transcoding progress information and step 2 is encapsulated as into one turn together
Code object.The key-value pair for again constituting camera id and the transcoding object is put into a Global Dictionary.
Step 4：Address after transcoding is returned to user by server, and user accesses live according to return address.
Step 5：User can periodically transmit a request to server, server is according in required parameter when watching live
Camera id finds corresponding transcoding object from global field, then by the user id in required parameter from transcoding object
The corresponding time surplus value of the user is found in user profile dictionary, and by time surplus value plus a time constant.With this
To ensure that the video continues transcoding.
Step 6：Server creates the key-value pair in a timed task, regular visit Global Dictionary, is taken from key-value pair
Go out transcoding object, then user profile dictionary is taken out from transcoding object, the user profile dictionary is sky if finding, by the key assignments
To being removed in Global Dictionary；Otherwise continue all time surplus values in polling user dictionary of information, time surplus value is subtracted
A time constant is removed, if the value after subtracting is more than 0, is retained, if less than 0, by the key-value pair from user profile dictionary
In remove.
● step is explained in detail：
For step 2：
When user 1 (id is user1) access camera (id is camera1) when, set user's initial time surplus value as
C0, will<user1,C0>Key-value pair is stored in a user profile dictionary users1.
For step 3：
A java classes HLS (transcoding object) is stated, such is included with properties:
{cameraId:Camera id；users:Map key-value pair set；process:Transcoding process；start:During beginning
Between；uuid:Unique code }；
Transcoding camera rstp protocol video streams are obtained into transcoding process for hls agreements using java operation ffmpeg
Access path after process1, transcoding is path1；
Create and initialize a HLS object hls1 { process=process1；Start=current times；path
=path1；CamerId=camera1；Users=users1 }；And will<camera1,hls1>Key-value pair is stored in Global Dictionary
hlSmap。
Access path path1 is returned into user again, user can watch live by the path.
For step 5：
User user1 just sends request every the C1 times while watching live to server, and transmit user id with
Its value of camera id is respectively user1 and camera1；
Server finds corresponding value hls1 according to key camera1 from Global Dictionary hLSmap, further according to user1 from
Key-value pair is found in hls1 user profile dictionary users1<user1,CX>；
It is final with<user1,CX+C1>Override<user1,CX>, the time surplus value of user is added in this way,
User can continue viewing, and this is live.
For step 6：
A timed task is created every C1 (wherein C1<C0) the value hlsX in time poll Global Dictionary hLSMap；
If hlsX users key-value pair quantity is 0, by the transcoding process processX termination release moneys of the hlsX
Source simultaneously removes the hlsX from Global Dictionary hlSMap；Otherwise the value in hlsX user profile dictionary usersX is subtracted
C1, removes the key-value pair if the value after subtracting is less than 0. from usersX.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage：
Technical scheme transcoding in the application is HLS (HLS (HTTP Live Streaming), Apple dynamic code rate
Adaptive technique, is mainly used in the audio frequency and video service of PC and Apple terminals, includes the index file of a m3u (8), TS media
Slicing files and key encryptions string file) agreement video flowing, browse cross-platform browser is live, without special control.
Technical scheme in the application improves server resource utilization rate, and server can be taken the photograph according to front end user to some
As head access come dynamic to the camera video stream carry out transcoding, rather than at the very start carry out transcoding wait for quietly user come to visit
Ask, therefore can reasonably utilize server resource, transcoding only is carried out to the camera video stream that user accesses, when user leaves
When accessing a certain camera, can also quick release fall the resource.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (5)
1. a kind of net cast method for being capable of cross-platform browser, it is characterised in that methods described includes：
Step 1：The live path that user needs to access by terminal request, and Transfer Parameters camera id；
Step 2：Server is by a key-value pair of user id and initial time composition and is put into a user profile dictionary；
Step 3：Camera source address collection video information of the server according to corresponding to the camera id that user asks；To collection
The video flowing arrived carries out HLS protocol transcoding, and the dictionary of the transcoding progress information and step 2 is encapsulated as into a transcoding pair together
As, then the key-value pair that camera id and the transcoding object are constituted is put into a Global Dictionary；
Step 4：Address after transcoding is returned to user by server, and user accesses live according to return address；
Step 5：User periodically transmit a request to server, camera of the server in required parameter when watching live
Id finds corresponding transcoding object from Global Dictionary, then is believed by the user id in required parameter from the user in transcoding object
The corresponding time surplus value of the user is found in breath dictionary, and time surplus value is ensured plus a time constant with this
The video continues transcoding；
Step 6：Server creates the key-value pair in a timed task, regular visit Global Dictionary, takes out and turns from key-value pair
Code object, then from transcoding object take out user profile dictionary, if find the user profile dictionary for sky, by the key-value pair from
Removed in Global Dictionary；Otherwise continue all time surplus values in polling user dictionary of information, time surplus value is subtracted one
Individual time constant, if the value after subtracting is more than 0, retains, if less than 0, the key-value pair is moved in user profile dictionary
Remove.
2. the net cast method according to claim 1 for being capable of cross-platform browser, it is characterised in that the step 2
Specially：When user 1 accesses camera, user 1id is user1, and camera id is camera1, sets user's initial time
Surplus value is C0, will<user1,C0>Key-value pair is stored in a user profile dictionary users1.
3. the net cast method according to claim 1 for being capable of cross-platform browser, it is characterised in that the step 3
Specifically include：
A java class HLS is stated, such is included with properties：{cameraId:Camera id；users:Map key-value pair collection
Close；process:Transcoding process；start:Time started；uuid:Unique code }；；
Transcoding camera rstp protocol video streams are obtained into transcoding process for hls agreements using java operation ffmpeg
Access path after process1, transcoding is path1；
Create and initialize a HLS object hls1 { process=process1；Start=current times；Path=
path1；CamerId=camera1；Users=users1 }；And will<camera1,hls1>Key-value pair is stored in Global Dictionary
hlSmap；
Access path path1 is returned into user again, user can watch live by the path.
4. the net cast method according to claim 1 for being capable of cross-platform browser, it is characterised in that the step 5
Specifically include：
User user1 sends request every the C1 times while watching live to server, and transmits user id and camera
Id, respectively user1 and camera1；
Server finds corresponding value hls1 according to key camera1 from Global Dictionary hLSmap, further according to user1 from hls1 use
Key-value pair is found in the dictionary of information users1 of family<user1,CX>；
It is final with<user1,CX+C1>Override<user1,CX>.
5. the net cast method according to claim 1 for being capable of cross-platform browser, it is characterised in that the step 6
Specifically include：
A timed task is created every the value hlsX, wherein C1 in C1 time poll Global Dictionaries hLSMap<C0；
If hlsX users key-value pair quantity is 0, the transcoding process processX terminations of the hlsX are discharged into resource and incited somebody to action
The hlsX is removed from Global Dictionary hlSMap；Otherwise the value in hlsX user profile dictionary usersX is subtracted into C1, if subtracting
Value after going is less than 0, then removes the key-value pair from usersX.
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| CN201710455585.XA CN107257497A (en) | 2017-06-16 | 2017-06-16 | A kind of net cast method for being capable of cross-platform browser |
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Cited By (5)
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| CN108055188A (en) * | 2017-10-19 | 2018-05-18 | 福建中金在线信息科技有限公司 | H5 live broadcast in both illustration and text method and apparatus based on wechat |
| CN109743586A (en) * | 2018-12-28 | 2019-05-10 | 广州华多网络科技有限公司 | Live streaming media anti-stealing link method and system |
| CN111107394A (en) * | 2019-12-25 | 2020-05-05 | 北京恒泰实达科技股份有限公司 | System and method for integrating video streams across platforms |
| CN111654722A (en) * | 2020-05-12 | 2020-09-11 | 中铁大桥科学研究院有限公司 | Method and device for playing bridge field video on demand based on H5 |
| CN116261021A (en) * | 2023-05-16 | 2023-06-13 | 北京蓝色星际科技股份有限公司 | Video stream playing method and device, electronic equipment and storage medium |
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Application publication date: 20171017 |