CN101754002A - Video monitoring system and realization method for dual-stream monitoring front end thereof - Google Patents
Video monitoring system and realization method for dual-stream monitoring front end thereof Download PDFInfo
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- CN101754002A CN101754002A CN 200810218003 CN200810218003A CN101754002A CN 101754002 A CN101754002 A CN 101754002A CN 200810218003 CN200810218003 CN 200810218003 CN 200810218003 A CN200810218003 A CN 200810218003A CN 101754002 A CN101754002 A CN 101754002A
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Abstract
The invention discloses a video monitoring system and a realization method for dual-stream monitoring front end thereof. The video monitoring system comprises a streaming media server, a service platform and a client end, and also comprises at least one dual-stream monitoring front-end module connected with the streaming media server, wherein the monitoring front-end module is used for coding video data, generating media streams of a fixed network and / or a mobile network and sending the medial streams to the client end through the streaming media server. The dual-stream monitoring front-end module can send streams of two networks, extends the fixed network video monitoring to the mobile video monitoring so as to go with the large trend of the fixed-mobile network convergence, meets the requirements of integrated telecom operators for the urgent development of fixed-mobile network convergence multimedia services, is convenient for users, and can allow the users to watch video and audio information at monitoring points at any places by using the advantages of the mobile network.
Description
Technical field
The present invention relates to the front monitoring front-end technical field of video monitoring system, relate in particular to the implementation method and the video monitoring system thereof of the front monitoring front-end that is used to send two kinds of code streams in the video monitoring system in a kind of fixed network, mobile fusion field.
Background technology
In recent years, the IP technology becomes the common network characterization of each communication network, and fixed network moves fusion also becomes the distinct service feature that new business is experienced.
Fixed network video monitoring develops comparative maturity at present, is widely used.The mobile video monitor business, be meant that the user passes through all kinds of move or catv terminal (as Streaming Media mobile phone, PDA, PC etc.) inserts directly that PSTN/2.5G/2.75G/3G/4G etc. is public to be had/wireless network, just can be to the place, the mobile pocket data business application type of a kind of total digitalization that real-time video monitoring is carried out in the zone paying close attention to/be concerned about, mainly serving be beyond one's reach region and some of fixed network network has the business of movement requirement to terminal.
And for present mobile network, though realized mobile network's technology of a new generations such as 3G/4G, but the relative fixed network of its bandwidth, still lower, for in fixed network than be easier to realize typically as the video code flow of 512Kbps, CIF, still unacceptable in the mobile network, also need to reduce code check again, resolution is littler.In this case, the front monitoring front-end two-way code stream of just need encoding simultaneously, one the tunnel be high-resolution (as CIF, D1 or more than), high code check (as 512Kbps or more than) code stream serve the fixed network network, one the tunnel is low resolution (as QCIF, SQCIF etc.), and the code stream of low code check (as 128Kbps etc.) is served the mobile network.
As seen, there is certain problem in the prior art, needs to improve further.
Summary of the invention
The object of the present invention is to provide the implementation method of a kind of video monitoring system and dual code stream front monitoring front-end thereof, it is applied in the video monitoring system that fixed network moves fusion, and the client that can realize fixed network, moves two kinds of networks is watched the audiovisual information of monitoring this control point simultaneously.
To achieve these goals, the present invention is by the following technical solutions:
The invention provides a kind of video monitoring system, described system comprises: streaming media server, business platform, client; Described system also comprises: the dual code stream front monitoring front-end module that at least one links to each other with described streaming media server, this front monitoring front-end module is used for coding video data, generation is used for the medium code stream of fixed network network and/or mobile network's medium code stream, and this media code stream is delivered to described client by described streaming media server.
Described system, wherein, described dual code stream front monitoring front-end module inserts described video monitoring system by the fixed network mode.
Described system, wherein, the output of the one or more video frequency pick-up heads in described each dual code stream front monitoring front-end module and the described video monitoring system links to each other.
Described system, wherein, described dual code stream front monitoring front-end module is connected with described business platform communication, is used for the described dual code stream front monitoring front-end modules configured information of registration on described business platform.
Described system, wherein, be provided with two-way media code circulation road between described each dual code stream front monitoring front-end module and the described streaming media server, the one tunnel is used to transmit the medium code stream of described fixed network network, and another road is used to transmit described mobile network's medium code stream.
The implementation method of the fixed network dual code stream front end of said system, this method may further comprise the steps:
A, dual code stream front monitoring front-end module are registered to business platform, set up with streaming media server between be connected;
B, described dual code stream front monitoring front-end module receive the transmission code stream request from described streaming media server;
C, described dual code stream front monitoring front-end module are judged the belonging network of client, and this client is for initiating the source end of described transmission code stream request;
D, according to the network under the described client, described dual code stream front monitoring front-end module generates video data and is used for the medium code stream of fixed network network or mobile network's medium code stream, and this media code stream is delivered to described client by described streaming media server.
Described method, wherein, described steps A may further comprise the steps:
A1, described dual code stream front monitoring front-end module are initiated register requirement to described business platform;
A2, described dual code stream front monitoring front-end module receive the registration response of feedback, and send the request of obtaining described streaming media server address to described business platform;
A3, described dual code stream front monitoring front-end module receive the response of described business platform feedback;
The described streaming media server address that A4, basis are obtained, described dual code stream front monitoring front-end module is initiated the request of connecting to described streaming media server;
A5, described dual code stream front monitoring front-end module receive the response that connects of described streaming media server feedback.
Described method, wherein, in the described steps A, set up two-way media code circulation road between described dual code stream front monitoring front-end module and the described streaming media server, one the tunnel is used to transmit the medium code stream of described fixed network network, and another road is used to transmit described mobile network's medium code stream.
Described method, wherein, among the described step C, described dual code stream front monitoring front-end module by check the request of described transmission code stream from the media code circulation road, determine the belonging network of described client.
Described method, wherein, among the described step D, if described client belongs to the mobile network, then described dual code stream front monitoring front-end module generates video data encoding the medium code stream that is used for the mobile network; If described client belongs to the fixed network network, then described dual code stream front monitoring front-end module generates video data encoding the medium code stream that is used for the fixed network network.
The invention effect: dual code stream front monitoring front-end module of the present invention can accomplish to send the code stream of two kinds of networks, fixed network video monitoring is extended to mobile video monitor, comply with fixed network and moved the fusion main trend, satisfy integral telecommunication operator and urgently developed the demand that fixed network moves the fusion multimedia service, made things convenient for the user, utilize mobile network's advantage, can make the not enough nowhere audiovisual information of watching the monitoring control point of user.
Description of drawings
Fig. 1 is the concrete networking diagram of implementing of the present invention;
Fig. 2 is the schematic diagram that be registered to business platform of the present invention under mobile and fixed network dual mode;
Fig. 3 is the schematic diagram that be registered to business platform of the present invention under full fixed network;
Fig. 4 is the media play flow chart of the present invention under mobile and fixed network dual mode;
Fig. 5 is the media play flow chart of the present invention under full fixed network.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with Figure of description.
As shown in Figure 1, video monitoring system provided by the present invention at first will comprise following components:
(1) streaming media server, its major function carry out the forwarding of medium code stream and storage etc., receive the medium code stream of front monitoring front-end, and it is transmitted to client, store as required simultaneously.
(2) business platform is used for front monitoring front-end, client, the registration of streaming media server and management etc.
(3) client is used for the receiving media code stream, decoding, and display image can be terminal equipment, also can also can be mobile clients such as Streaming Media mobile phone, PDA for operating in the client-side program on the computer.As can be seen from Figure 1, client is divided into mobile monitor client and fixed network monitor client, mobile clients such as mobile monitor client such as Streaming Media mobile phone, PDA, the client-side program on fixed network monitor client such as the computer.
The most important thing is, also to add the dual code stream front monitoring front-end module that at least one links to each other with described streaming media server in video monitoring system of the present invention, this front monitoring front-end module is used for coding video data, generation is used for the code stream of fixed network network and/or mobile network's code stream, and this code stream is delivered to described client by described streaming media server.
As shown in Figure 1, described dual code stream front monitoring front-end module inserts described video monitoring system by the fixed network mode.In order to reduce hardware facility, reduce cost, the output of the one or more video frequency pick-up heads in each dual code stream front monitoring front-end module and the described video monitoring system links to each other, the output that is used for a plurality of video frequency pick-up heads of real-time management, coding video data to a plurality of video frequency pick-up head outputs, it is placed on different positions, can carry out the monitoring of a plurality of control points.Dual code stream front monitoring front-end module connects camera, can adopt the mode of built-in camera, mode that also can external camera.
As shown in Figure 1, business platform is to the management of dual code stream front monitoring front-end module for convenience, adopt communication to be connected between described dual code stream front monitoring front-end module and the described business platform, be used on described business platform, registering described dual code stream front monitoring front-end modules configured information.
As shown in Figure 1, dual code stream front monitoring front-end module mainly is that the coding video data of gathering is handled, in order to satisfy the needs of two kinds of network modes simultaneously, between each dual code stream front monitoring front-end module and streaming media server, need to be provided with two-way media code circulation road, one the tunnel is used to transmit the medium code stream of fixed network network, and another road is used to transmit mobile network's medium code stream.As seen, when dual code stream front monitoring front-end module to the requirement of the video data of video frequency pick-up head input according to business platform or Streaming Media, can selectively carry out the coding of two kinds of different modes, perhaps can carry out the coding of dual mode simultaneously, and the medium code stream that the back of will encoding generates is sent to streaming media server.H.264 the coded system of dual code stream front monitoring front-end module support can be, also can be coded systems relatively more commonly used such as MPEG4.
Based on the said system structure, the present invention also provides a kind of implementation method of fixed network dual code stream front end, and it mainly may further comprise the steps:
Steps A, dual code stream front monitoring front-end module are registered to business platform, set up with streaming media server between be connected;
Step B, dual code stream front monitoring front-end module receive the transmission code stream request from streaming media server;
Step C, dual code stream front monitoring front-end module are judged the belonging network of client, and this client is for initiating to send the source end of code stream request;
Step D, according to the network under the client, dual code stream front monitoring front-end module generates video data and is used for the medium code stream of fixed network network or mobile network's medium code stream, and this media code stream is delivered to described client by streaming media server.
Describe the implementation of above-mentioned each step in detail below in conjunction with accompanying drawing.
As can be seen from Figure 1, dual code stream front monitoring front-end module inserts the whole video supervisory control system in the fixed network mode, be registered on the business platform, streaming media server and various types of monitor client also all are registered on the business platform simultaneously, dual code stream front monitoring front-end module sends two kinds of code streams to streaming media server, client obtains the reduction of decoding of media code stream from streaming media server, is shown on the display device of self.As shown in Figure 2, provided move and the fixed network dual mode under video monitoring system in each part be registered to the schematic diagram of business platform, wherein, the process that mobile monitor client and dual code stream front monitoring front-end module are registered is as follows:
Step 201, the mobile monitor client is initiated register requirement to business platform;
Step 202, business platform is to mobile monitor client feedback registration response;
Step 204, the mobile monitor client initiates to obtain the front monitoring front-end list request to business platform;
Step 205, business platform is to streaming media server feedback registration response;
Step 207, after dual code stream front monitoring front-end module was finished registration, business platform obtained the response of front monitoring front-end tabulation to the mobile monitor client feedback;
Step 211, according to the streaming media server address that obtains, dual code stream front monitoring front-end module is initiated the request of connecting to streaming media server;
As shown in Figure 3, it has provided the schematic diagram that be registered to business platform of the present invention under full fixed network, has wherein provided the process that the fixed network monitor client is registered to business platform, and its process is basic with above-mentioned flow process identical.Fig. 2 is the schematic flow sheet that various device is registered to business platform under different network modes with Fig. 3.Among Fig. 2, dual code stream front monitoring front-end module reads the configuration information that self preserves after startup, as information such as the IP address of business platform, port numbers, account number, passwords, initiate register requirement to business platform, business platform is received this request, the information of authentication dual code stream front monitoring front-end module, authentication by after show and succeed in registration that failed authentication is dual code stream front monitoring front-end module registration failure then.After succeeding in registration, dual code stream front monitoring front-end module sends the request of obtaining the streaming media server address to business platform, after receiving the response of business platform, dual code stream front monitoring front-end module is initiatively initiated two-way to streaming media server and is connected, be used to set up two-way media code circulation road, one the tunnel is the connection of fixed network code stream, is used to transmit the medium code stream of fixed network network; Another road is the connection of mobile code stream, is used to transmit mobile network's medium code stream.Its example is as follows:
rtsp://172.16.69.36：10020/ 000055000100004101.sdp？guid＝000055000100004101&streamid＝1&userid＝0&clienttype＝4&time＝20080713101913+08&life＝3600&cryptmode＝0502&crypt＝AFE434B24FFF0217BD94DD41E79C5584
Streamid field wherein shows it is which road connects, and as 1 being the connection of fixed network network code stream, 2 is the connection of mobile network's code stream.
Equally, streaming media server is initiated registration to business platform in the same way, the mobile monitor client is initiated registration by wireless network to business platform, and so far various types of equipment all have been registered on the business platform, carry out unified management by business platform.The mobile monitor client need initiate to obtain the request of front monitoring front-end tabulation to business platform after succeeding in registration, receive response after, monitor client has just obtained current online dual code stream front monitoring front-end module, for follow-up media play ready.
Related procedure explanation when more than having provided registration is presented in the media play flow process under mobile and the fixed network dual mode below.As shown in Figure 4, the process of mobile monitor client-requested media play:
Step 301, mobile monitor client initiate to send the request of code stream to streaming media server;
Step 302, streaming media server is to the request of the described transmission code stream of dual code stream front monitoring front-end module forwards; As shown in Figure 1, between mobile monitor client and the streaming media server is that single channel is connected, and streaming media server is that two-way is connected with dual code stream front monitoring front-end module, so, know it is the request that the mobile monitor client sends when streaming media service, then be transmitted to dual code stream front monitoring front-end module by the passage that is used to transmit mobile code stream.
Step 303, streaming media server send the response of code stream to the mobile monitor client feedback;
Step 304, dual code stream front monitoring front-end module send the response of code stream to the streaming media server feedback;
Step 305, dual code stream front monitoring front-end module begin coding, and packing sends the medium code stream that is used for the mobile network by above-mentioned passage to streaming media server;
Step 306, streaming media server is issued the mobile monitor client with above-mentioned media code circulation;
Step 307, mobile monitor client initiate to stop to send the request of code stream to streaming media server;
Step 308, streaming media server is to the described request that stops to send code stream of dual code stream front monitoring front-end module forwards;
Step 309, streaming media server stop to send the response of code stream to the mobile monitor client feedback;
Step 310, dual code stream front monitoring front-end module stop to send the response of code stream to the streaming media server feedback.
As shown in Figure 5, the process of fixed network monitor client request media play can realize with reference to above-mentioned flow process.Fig. 4 is the flow process of media play under different network modes with Fig. 5.The front monitoring front-end tabulation that the mobile monitor client obtains according to self, the dual code stream front monitoring front-end module that selection is wanted to watch is play, this moment, the mobile monitor client sent the address that obtains the streaming media server that this front monitoring front-end connects to business platform, after receiving the response of business platform, send code stream to the streaming media server request, streaming media server receives the request back judges it is the request that the mobile network sends, notify dual code stream front monitoring front-end module to begin to send code stream this moment, ask code stream by referring to riches all the way during two-way that dual code stream front monitoring front-end module is set up is connected, example is as follows:
SET_PARAMETER?rtsp://172.16.69.35/000055000100004101RTSP/1.0
CSeq：5
X-PLAYCTRL：“PLAY：START”
User-Agent：ZMSSStreamingServer?Request
The response example that dual code stream front monitoring front-end module provides is as follows:
RTSP/1.0200SUCCESS
Cseq：5
Server：DSS?5.0.5
After dual code stream front monitoring front-end module is received request, judgement is which road connects the request of sending, if require to send the code stream of mobile network's mode, then dual code stream front monitoring front-end module reads the configuration information of self, here suppose that resolution is QCIF, code check is 64Kbps, and H.264 coded system is, need be packaged into the code stream of 3GPP2 form.Dual code stream front monitoring front-end module begins coding, and according to the packing manner of appointment, packing sends code stream to streaming media server.After streaming media server is received the code stream of front monitoring front-end, be transmitted to the mobile monitor client.The mobile monitor client is received the medium code stream, begins decoding reduction, on self the display device of demonstration, as mobile phone screen etc.After the mobile monitor client is not thought to watch, initiate to stop to send the code stream request again, after streaming media server is received this request, stop to send the code stream request to the transmission of dual code stream front monitoring front-end module to streaming media server.After dual code stream front monitoring front-end module is received request, stop coding and transmission, and the response flow media server.
From as can be seen above-mentioned, fixed network of the present invention move merge to send two kinds of code streams dual code stream front monitoring front-end module after startup according to configuration information, need be registered on the business platform.The back dual code stream front monitoring front-end module that succeeds in registration obtains the address of streaming media server; After dual code stream front monitoring front-end module obtains the address of streaming media server, initiatively initiate the connection of two-way media code circulation road to streaming media server, one the tunnel is the connection of fixed network code stream, one the tunnel is the connection of mobile network's code stream, after connecting the streaming media server success, front monitoring front-end waits for that the code stream of streaming media server sends request.If support multichannel dual code stream front monitoring front-end module, then every passage all will be set up two-way with streaming media server and be connected.
In addition, after dual code stream front monitoring front-end module was received the transmission code stream request of streaming media server, judgement was which road connects the request of sending.Dual code stream front monitoring front-end module by check send the code stream request from the media code circulation road, determine the belonging network of client.If the mobile monitor client requires dual code stream front monitoring front-end module to send mobile network's code stream, then dual code stream front monitoring front-end module is encoded according to configuration information, begins to send code stream; If the fixed network monitor client requires front monitoring front-end to send the code stream of fixed network, then front monitoring front-end is encoded according to configuration information (as resolution is D1, and code check is 1024kbps, and H.264 coded system is), begins to send code stream.If two-way media code circulation road is all sent request, show that then requirement sends two kinds of code streams simultaneously, then dual code stream front monitoring front-end module sends different code streams from different passages respectively according to different configuration informations.Need add different packing manner according to different networks at the head of code stream when sending code stream,, can break into form commonly used among the mobile network such as ISMA/3GPP/3GPP2 as requested as the mobile network; As fixed network, can break into forms such as TS/RTP as requested.
In sum, video monitoring system provided by the present invention can send the code stream of two kinds of networks, makes things convenient for the fixed network monitor client to obtain relevant video data in real time with the mobile monitor client.
Illustrating of above-mentioned each concrete steps is comparatively concrete, can not therefore think the restriction to scope of patent protection of the present invention, and scope of patent protection of the present invention should be as the criterion with claims.
Claims (10)
1. video monitoring system, described system comprises: streaming media server, business platform, client; It is characterized in that, described system also comprises: the dual code stream front monitoring front-end module that at least one links to each other with described streaming media server, this front monitoring front-end module is used for coding video data, generation is used for the medium code stream of fixed network network and/or mobile network's medium code stream, and this media code stream is delivered to described client by described streaming media server.
2. system according to claim 1 is characterized in that, described dual code stream front monitoring front-end module inserts described video monitoring system by the fixed network mode.
3. system according to claim 1 is characterized in that, the output of the one or more video frequency pick-up heads in described each dual code stream front monitoring front-end module and the described video monitoring system links to each other.
4. system according to claim 1 is characterized in that, described dual code stream front monitoring front-end module is connected with described business platform communication, is used for the described dual code stream front monitoring front-end modules configured information of registration on described business platform.
5. system according to claim 1, it is characterized in that, be provided with two-way media code circulation road between described each dual code stream front monitoring front-end module and the described streaming media server, one the tunnel is used to transmit the medium code stream of described fixed network network, and another road is used to transmit described mobile network's medium code stream.
6. the implementation method of the fixed network dual code stream front end of the described system of claim 1 is characterized in that, said method comprising the steps of:
A, dual code stream front monitoring front-end module are registered to business platform, set up with streaming media server between be connected;
B, described dual code stream front monitoring front-end module receive the transmission code stream request from described streaming media server;
C, described dual code stream front monitoring front-end module are judged the belonging network of client, and this client is for initiating the source end of described transmission code stream request;
D, according to the network under the described client, described dual code stream front monitoring front-end module generates video data and is used for the medium code stream of fixed network network or mobile network's medium code stream, and this media code stream is delivered to described client by described streaming media server.
7. method according to claim 6 is characterized in that, described steps A may further comprise the steps:
A1, described dual code stream front monitoring front-end module are initiated register requirement to described business platform;
A2, described dual code stream front monitoring front-end module receive the registration response of feedback, and send the request of obtaining described streaming media server address to described business platform;
A3, described dual code stream front monitoring front-end module receive the response of described business platform feedback;
The described streaming media server address that A4, basis are obtained, described dual code stream front monitoring front-end module is initiated the request of connecting to described streaming media server;
A5, described dual code stream front monitoring front-end module receive the response that connects of described streaming media server feedback.
8. method according to claim 6, it is characterized in that, in the described steps A, set up two-way media code circulation road between described dual code stream front monitoring front-end module and the described streaming media server, one the tunnel is used to transmit the medium code stream of described fixed network network, and another road is used to transmit described mobile network's medium code stream.
9. method according to claim 8 is characterized in that, among the described step C, described dual code stream front monitoring front-end module by check the request of described transmission code stream from the media code circulation road, determine the belonging network of described client.
10. method according to claim 6 is characterized in that, among the described step D, if described client belongs to the mobile network, then described dual code stream front monitoring front-end module generates video data encoding the medium code stream that is used for the mobile network; If described client belongs to the fixed network network, then described dual code stream front monitoring front-end module generates video data encoding the medium code stream that is used for the fixed network network.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065281A (en) * | 2010-11-23 | 2011-05-18 | 无锡港湾网络科技有限公司 | Network monitoring system with functions of storing and remote replaying |
| CN102625082A (en) * | 2012-02-29 | 2012-08-01 | 中山大学 | Video monitoring system |
| CN104349100A (en) * | 2013-07-25 | 2015-02-11 | 杭州海康威视数字技术股份有限公司 | DVR monitoring system supporting single-channel dual-stream video recording and method thereof |
| CN105141931A (en) * | 2015-10-20 | 2015-12-09 | 武汉烽火众智数字技术有限责任公司 | Wireless video monitoring and commanding system and method thereof |
| CN105323649A (en) * | 2014-07-18 | 2016-02-10 | 季春宏 | Wireless video transmission method and system of multi-route simultaneous transmission hot standby |
| CN106416220A (en) * | 2014-05-22 | 2017-02-15 | 微软技术许可有限责任公司 | Automatic insertion of video into a photo story |
| CN106713846A (en) * | 2016-11-14 | 2017-05-24 | 浙江宇视科技有限公司 | Live connection establishing method and device |
| CN113037532A (en) * | 2019-12-25 | 2021-06-25 | 中兴通讯股份有限公司 | Stream media code stream detection method, device, server and readable storage medium |
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2008
- 2008-12-02 CN CN 200810218003 patent/CN101754002B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065281A (en) * | 2010-11-23 | 2011-05-18 | 无锡港湾网络科技有限公司 | Network monitoring system with functions of storing and remote replaying |
| CN102065281B (en) * | 2010-11-23 | 2015-01-07 | 无锡港湾网络科技有限公司 | Network monitoring system with functions of storing and remote replaying |
| CN102625082A (en) * | 2012-02-29 | 2012-08-01 | 中山大学 | Video monitoring system |
| CN104349100A (en) * | 2013-07-25 | 2015-02-11 | 杭州海康威视数字技术股份有限公司 | DVR monitoring system supporting single-channel dual-stream video recording and method thereof |
| CN106416220A (en) * | 2014-05-22 | 2017-02-15 | 微软技术许可有限责任公司 | Automatic insertion of video into a photo story |
| CN105323649A (en) * | 2014-07-18 | 2016-02-10 | 季春宏 | Wireless video transmission method and system of multi-route simultaneous transmission hot standby |
| CN105141931A (en) * | 2015-10-20 | 2015-12-09 | 武汉烽火众智数字技术有限责任公司 | Wireless video monitoring and commanding system and method thereof |
| CN106713846A (en) * | 2016-11-14 | 2017-05-24 | 浙江宇视科技有限公司 | Live connection establishing method and device |
| CN106713846B (en) * | 2016-11-14 | 2020-04-10 | 浙江宇视科技有限公司 | Live connection establishing method and device |
| CN113037532A (en) * | 2019-12-25 | 2021-06-25 | 中兴通讯股份有限公司 | Stream media code stream detection method, device, server and readable storage medium |
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| Publication number | Publication date |
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| CN101754002B (en) | 2012-12-05 |
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