CN101635716B - Method and system for remotely controlling network audio/video coder - Google Patents
Method and system for remotely controlling network audio/video coder Download PDFInfo
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- CN101635716B CN101635716B CN2009100910561A CN200910091056A CN101635716B CN 101635716 B CN101635716 B CN 101635716B CN 2009100910561 A CN2009100910561 A CN 2009100910561A CN 200910091056 A CN200910091056 A CN 200910091056A CN 101635716 B CN101635716 B CN 101635716B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000344 soap Substances 0.000 claims abstract description 43
- 230000004044 response Effects 0.000 claims description 52
- 230000009471 action Effects 0.000 claims description 4
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- 230000003993 interaction Effects 0.000 description 3
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- 238000005538 encapsulation Methods 0.000 description 2
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Abstract
The invention relates to a method and a system for remotely controlling a network audio/video coder, belonging to the field of communication. In the method, SOAP information is transmitted by an RTSP protocol to further realize the remote control of the network audio/video coder; and the front-end network audio/video coder is connected with the RTSP between streaming media servers to transmit the SOAP information, thereby solving the problem that the front-end network audio/video coder positioned in an Intranet can not directly provide an HTTP service to the external world. The system and the method are widely applicable to the field of the remote control of the network audio/video coder and have important application value.
Description
Technical field
The present invention relates to the communications field, relate in particular to soap protocol and RTSP agreement.
Background technology
SOAP (Simple Object Access Protocol, Simple Object Access Protocol) is the simple protocol of exchange message in dispersion or distributed environment, is a kind of agreement based on XML.
SOAP comprises four parts, is respectively SOAP encapsulation (envelop), SOAP coding rule (encoding rules), SOAP RPC representes (RPC representation) and SOAP binding (binding).SOAP encapsulation has defined a framework, this frame description the content in the message, by who send, who should receive and handle and how to handle.The SOAP coding rule has defined a kind of mechanism of serializing, is used to represent that application program need use the instance of data type.SOAP RPC has represented to define and has been used to represent far call and the agreement of replying.SOAP binds and uses the underlying protocol exchange message, and SOAP is tied on the HTTP usually.
In traditional network direct broadcasting system, what adopt usually is that SOAP is bundled on the HTTP, and this kind method needs client can be directly connected on the HTTP serve port of front network audio/video coder.Yet for many practical application, network audio/video coder often all is online in being connected, and HTTP can not externally directly be provided service.Especially for the very deficient situation of Chinese IP address resource, it is especially outstanding that this kind contradiction seems.
Summary of the invention
The invention provides a kind of can overcome the above problems transmit soap message and then realize network audio/video coder is carried out the method and system of Long-distance Control via the RTSP agreement.
In first aspect; The invention provides and a kind of network audio/video coder is carried out the method for Long-distance Control, wherein between network audio/video coder, streaming media server, the client through the network interconnection, SOAP is a Simple Object Access Protocol; RTSP is a real-time stream media protocol; It is characterized in that, comprising: client is sent the HTTP request to streaming media server, and carries the SOAP request; Streaming media server is encapsulated in this SOAP request in the one RTSP message, and the SOAP that will encapsulate request is sent to network audio/video coder via the RTSP connection; Network audio/video coder produces the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server; Streaming media server produces new SOAP response based on the SOAP response that this is encapsulated in the 2nd RTSP message, and this new SOAP response is encapsulated in the HTTP message, and then this new SOAP response that is encapsulated in the HTTP message is sent to client.
In second aspect; The invention provides a kind of streaming media server; Wherein between network audio/video coder, streaming media server, the client through the network interconnection; SOAP is a Simple Object Access Protocol; RTSP is a real-time stream media protocol, it is characterized in that this streaming media server comprises: be used for the SOAP that is carried at the HTTP request from client is asked to be encapsulated in the RTSP message, and the SOAP that will encapsulate request connects the device that is sent to network audio/video coder via RTSP; Wherein network audio/video coder produces the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server; And be used for producing new SOAP response based on this SOAP response that is encapsulated in the 2nd RTSP message, and this new SOAP response is encapsulated in the HTTP message, and then this new SOAP that is encapsulated in the HTTP message is responded the device that is sent to client.
In the third aspect, the invention provides and a kind of network audio/video coder is carried out the system of Long-distance Control, wherein between network audio/video coder, streaming media server, the client through the network interconnection; SOAP is a Simple Object Access Protocol; RTSP is a real-time stream media protocol, it is characterized in that, comprising: client; Be used for sending the HTTP request, and carry the SOAP request to streaming media server; Streaming media server be used for this SOAP request is encapsulated in a RTSP message, and the SOAP that will encapsulate request is sent to network audio/video coder via the RTSP connection; Network audio/video coder is used for producing the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server; Wherein, Streaming media server also is used for producing new SOAP response based on this SOAP response that is encapsulated in the 2nd RTSP message; And this new SOAP response is encapsulated in the HTTP message, and then this new SOAP response that is encapsulated in the HTTP message is sent to client.
In one embodiment of the invention, said RTSP message is RTSP SET_PARAMETER or RTSP 200 OK, and said HTTP message is HTTP POST or HTTP 200 OK.
The invention provides a kind of method that realizes the network audio/video coder Long-distance Control via RTSP agreement transmission SOAP; Be connected with RTSP between the streaming media server via the front network audio/video coder and transmit SOAP information, HTTP can't directly externally be provided the problem of service when the front network audio/video coder is positioned at Intranet thereby solved.
Description of drawings
Below with reference to accompanying drawings specific embodiments of the present invention is explained in more detail, in the accompanying drawings:
Fig. 1 is the system block diagram of remote control network audio/video coder;
Fig. 2 is the information interaction sketch map between network audio/video coder and the streaming media server;
Fig. 3 is client is carried out Long-distance Control to network audio/video coder a sketch map.
Embodiment
Fig. 1 is the system block diagram of remote control network audio/video coder.This system comprises network audio/video coder 110, streaming media server 120 and client 130.Interconnect through network between network audio/video coder 110, streaming media server 120 and the client 130, so that client 130 obtains the audio-video signal stream in the network audio/video coder 120 through this streaming media server 120.
Network audio/video coder 110 is used for audio-video signal is carried out the Real Time Compression coding, and transmits with the Streaming Media mode through network.In one embodiment of the invention, this network audio/video coder 110 is an embedded hardware equipment.Streaming media server 120 is positioned at public network, is used to receive the audio frequency and video request of client 130 and according to this request the audio-video signal stream of network audio/video coder 110 is sent to client 130.Client 130 is terminal equipments of supporting that audio and video stream media is play, and it is including, but not limited to PC, mobile phone terminal, STB etc.
130 pairs of particular network audio frequency and video of client are carried out program request; At first need network audio/video coder 110 to be connected on the streaming media server 120; Information interaction between network audio/video coder 110 of the present invention and the streaming media server 120 adopts RTSP (Real Time Streaming Protocol; Real-time stream media protocol) agreement, the operations such as foundation, broadcast, time-out and dismounting of RTSP control real time flow medium session.Set forth the information interacting method between network audio/video coder 110 and the streaming media server 120 below.
Fig. 2 is the information interaction sketch map between network audio/video coder and the streaming media server.
In step 210; The network audio/video coder 110 initial condition sequence numbers that connect streaming media server 120 first are for empty; Then network audio/video coder 110 sends ANNOUNCE message and carries the MAC Address of himself to streaming media server 120, so that notification streams media server 120 these network audio/video coders 110 are reached the standard grade.Specific procedure is following:
In step 220, streaming media server 120 in its database, search from network audio/video coder 110 with the corresponding Equipment Serial Number of its MAC Address, and this sequence number is back to network audio/video coder 110.If in the database of streaming media server 120, there is not this MAC Address corresponding device sequence number, then streaming media server 120 newly-generated unique sequence numbers also should write in its database by new sequence number.Specific procedure is following:
In step 230, after network audio/video coder 110 receives the new sequence number from streaming media server 120, should write configuration data by new sequence number, resend the ANNOUNCE message that comprises this new sequence number to streaming media server 120 again.Specific procedure is following:
In step 240, streaming media server 120 receives this and comprises the ANNOUNCE message of new sequence number, and makes respective response, and then affirmation network audio/video coder 110 is reached the standard grade.Specific procedure is following:
In step 250, streaming media server 120 sends the DESCRIBE request to network audio/video coder 110, so that obtain session description information (SDP).Specific procedure is following:
In step 260, the DESCRIBE of network audio/video coder 110 response flow media servers 120 request, and carry SDP and describe.Specific procedure is following:
In step 270, streaming media server 120 sends the SETUP request to network audio/video coder 110, requires to set up video (or audio frequency) data session.Specific procedure is following:
In step 280, the SETUP of network audio/video coder 110 response flow media servers asks, and provides the transmission parameter of corresponding video (or audio frequency) session.
Specific procedure is following:
In above description, be that network audio/video coder 110 notification streams media servers 120 these network audio/video coders 110 are reached the standard grade from step 210 to step 240,120 pairs of network audio/video coders of streaming media server carry out authentication and confirm the process that it is reached the standard grade.From step 250 to step 260 is that streaming media server 120 is initiated the media session negotiation to network audio/video coder 110, and then prepares the process of media stream.Next will set forth this media stream process in detail.
Fig. 3 is client is carried out Long-distance Control to network audio/video coder a sketch map.
Under client 130 program request network audio-video situation; Be that client 130 is when requiring that network audio/video coder 110 carried out Long-distance Control; Client 130 is through soap protocol and streaming media server 120 interactive information, and streaming media server 120 is through RTSP agreement and network audio/video coder 110 interactive information.Just soap message is transmitted to realize the Long-distance Control of 130 pairs of network audio/video coders 110 of client via the RTSP agreement.
In step 310, client 130 is sent HTTP POST request to streaming media server 120, and the soap message that carries Long-distance Control simultaneously is as message body.
In an example, said message body comprises configuration parameter, operational factor, the Long-distance Control action of network audio/video coder.
Said configuration parameter is including, but not limited to video code model, video frequency coding rate, video coding frame per second, audio coding code check, audio coding form.
Said operational factor is including, but not limited to mode of operation, equipment clock, write switch, the alarm switch of network audio/video coder.
The action of said Long-distance Control including, but not limited to network audio/video coder restart, start video recording, stop video recording, report to the police deploy troops on garrison duty, report to the police withdraw a garrison, The Cloud Terrace rotates, the focal length stretching.
Specific procedure is following:
In step 320, whether the network audio/video coder 110 that streaming media server 120 inspection clients 130 are asked is online.If this network audio/video coder 110 is online, then will be encapsulated in the RTSP message (for example RTSP SET_PARAMETER), and the SOAP that will encapsulate request is sent to network audio/video coder 110 from the SOAP request of client 130.Specific procedure is following:
In step 330; 110 pairs of network audio/video coders are encapsulated in SOAP request the carrying out decapsulation in the RTSP message; Extract SOAP request wherein; Produce the SOAP response again, and the SOAP response is encapsulated in the RTSP message (for example RTSP 200OK), and then the SOAP that will encapsulate response is back to streaming media server 120.Specific procedure is following:
In step 340; 120 pairs of streaming media servers are encapsulated in SOAP response the carrying out decapsulation in the RTSP message; Extract SOAP response wherein; Produce new SOAP response then, and the SOAP that will newly produce response is encapsulated in the HTTP message (for example HTTP 200OK), and then this SOAP response that is encapsulated in the HTTP message is back to client 130.Specific procedure is following:
Obviously, under the prerequisite that does not depart from true spirit of the present invention and scope, the present invention described here can have many variations.Therefore, the change that all it will be apparent to those skilled in the art that all should be included within the scope that these claims contain.The present invention's scope required for protection is only limited described claims.
Claims (9)
1. method of network audio/video coder being carried out Long-distance Control; Wherein between network audio/video coder, streaming media server, the client through the network interconnection, SOAP is a Simple Object Access Protocol, RTSP is a real-time stream media protocol; It is characterized in that, comprising:
Step a, client is sent the HTTP request to streaming media server, and carries the SOAP request;
Step b, streaming media server is encapsulated in this SOAP request in the one RTSP message, and the SOAP that will encapsulate request is sent to network audio/video coder via the RTSP connection;
Step c, network audio/video coder produces the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server;
Steps d; Streaming media server produces new SOAP response based on the SOAP response that this is encapsulated in the 2nd RTSP message; And this new SOAP response is encapsulated in the HTTP message, and then this new SOAP response that is encapsulated in the HTTP message is sent to client.
2. a kind of method that network audio/video coder is carried out length of run control as claimed in claim 1 is characterized in that, one or more in the configuration parameter of said SOAP request package includes network audio/video coder, operational factor, the Long-distance Control action.
3. a kind of method of network audio/video coder being carried out length of run control as claimed in claim 2; It is characterized in that said configuration parameter comprises one or more in video code model, video frequency coding rate, video coding frame per second, audio coding code check, the audio coding form;
Said operational factor comprises one or more in the mode of operation, clock, write switch, alarm switch of network audio/video coder;
The action of said Long-distance Control comprise network audio/video coder restart, start video recording, stop to record a video, report to the police deploy troops on garrison duty, report to the police withdraw a garrison, The Cloud Terrace rotates, one or more in the focal length stretching.
4. a kind of method that network audio/video coder is carried out length of run control as claimed in claim 1 is characterized in that, comprises before the step b that after step a streaming media server detects the online step of network audio/video coder.
5. a kind of method of network audio/video coder being carried out length of run control as claimed in claim 1; It is characterized in that; The said HTTP request of step a is HTTP POST; And/or the said RTSP message of step b is RTSP SET_PARAMETER, and/or said the 2nd RTSP message of step c is RTSP 200 OK, and/or the said HTTP message of steps d is HTTP 200 OK.
6. a kind of method that network audio/video coder is carried out length of run control as claimed in claim 1 is characterized in that, before step a, comprises:
Step e, network audio/video coder sends message and carries the MAC Address of himself to streaming media server, and this network audio/video coder of notification streams media server is reached the standard grade;
Step f, streaming media server carries out authentication to network audio/video coder, makes response and reaches the standard grade to confirm this network audio/video coder;
Step g, streaming media server are initiated media session to network audio/video coder and are consulted, so that prepare to carry out media stream.
7. streaming media server, wherein between network audio/video coder, streaming media server, the client through the network interconnection, SOAP is a Simple Object Access Protocol, RTSP is a real-time stream media protocol, it is characterized in that this streaming media server comprises:
Be used for and ask to be encapsulated in the RTSP message from the SOAP that is carried at the HTTP request of client, and the SOAP that will encapsulate request connects the device that is sent to network audio/video coder via RTSP;
Wherein network audio/video coder produces the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server; And
Be used for producing new SOAP response, and this new SOAP response is encapsulated in the HTTP message, and then this new SOAP that is encapsulated in the HTTP message is responded the device that is sent to client based on this SOAP response that is encapsulated in the 2nd RTSP message.
8. system that network audio/video coder is carried out Long-distance Control; Wherein between network audio/video coder, streaming media server, the client through the network interconnection, SOAP is a Simple Object Access Protocol, RTSP is a real-time stream media protocol; It is characterized in that, comprising:
Client is used for sending the HTTP request to streaming media server, and carries the SOAP request;
Streaming media server be used for this SOAP request is encapsulated in a RTSP message, and the SOAP that will encapsulate request is sent to network audio/video coder via the RTSP connection;
Network audio/video coder is used for producing the SOAP response based on this SOAP request, and this SOAP response is encapsulated in the 2nd RTSP message, and then the SOAP that will encapsulate response is sent to streaming media server;
Wherein, Streaming media server also is used for producing new SOAP response based on this SOAP response that is encapsulated in the 2nd RTSP message; And this new SOAP response is encapsulated in the HTTP message, and then this new SOAP response that is encapsulated in the HTTP message is sent to client.
9. as claimed in claim 8ly a kind of network audio/video coder is carried out the system of Long-distance Control, it is characterized in that the terminal equipment of said client for supporting that audio and video stream media is play.
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| TWI562633B (en) * | 2015-10-02 | 2016-12-11 | Xavi Technologies Corp | Network system, gateway and data transmission method |
| CN105872453A (en) * | 2015-12-15 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Web camera monitoring method and system as well as server |
| CN109857572B (en) * | 2018-12-29 | 2022-03-01 | 阿波罗智能技术(北京)有限公司 | Method, device and equipment for realizing remote calling and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1990956A1 (en) * | 2006-03-01 | 2008-11-12 | Mitsubishi Electric Corporation | Gateway device |
| CN101442537A (en) * | 2008-11-11 | 2009-05-27 | 北京星谷科技有限公司 | Method and system for network stream medium living broadcast based on RTSP protocol |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1990956A1 (en) * | 2006-03-01 | 2008-11-12 | Mitsubishi Electric Corporation | Gateway device |
| CN101442537A (en) * | 2008-11-11 | 2009-05-27 | 北京星谷科技有限公司 | Method and system for network stream medium living broadcast based on RTSP protocol |
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