CN102694864A - Method for achieving streaming media function by utilizing HTTP, streaming media server and system - Google Patents
Method for achieving streaming media function by utilizing HTTP, streaming media server and system Download PDFInfo
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- CN102694864A CN102694864A CN2012101734304A CN201210173430A CN102694864A CN 102694864 A CN102694864 A CN 102694864A CN 2012101734304 A CN2012101734304 A CN 2012101734304A CN 201210173430 A CN201210173430 A CN 201210173430A CN 102694864 A CN102694864 A CN 102694864A
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Abstract
The embodiment of the invention discloses a method for achieving a streaming media function by utilizing the HTTP (Hyper Text Transport Protocol). The method comprises the following steps: receiving a GET instruction, and establishing dialogue according to a URL (Universal Resource Locator) address and a coder or a storage system; after the successful establishment of the dialogue, sending a response message to a client, and setting a Transfer-Encoding field of the response message as chunked; sending a requesting data message to the coder or the storage system; and receiving a media data block sent from the coder or the storage system, and then sending the media data block to the client. The embodiment of the invention also discloses a streaming media server and a streaming media system. According to the embodiment of the invention, the streaming media function is achieved by utilizing the HTTP; the time-delay of the transmission of a video is shortened to a substantial extent on the basis of ensuring the transmission quality of the video, so as to achieve real-time transmission; and a continuous data stream can be obtained only via the GET instruction of the HTTP, therefore, an extra load of the streaming media server caused by frequent requests is avoided.
Description
Technical field
The present invention relates to stream media technology, relate in particular to and utilize http protocol to realize method, streaming media server and the system of flow medium function.
Background technology
Traditional stream media technology needs special-purpose host-host protocol.Server moves real-time stream protocol (RTSP; Real Time Streaming Protocol); With the required control information of exchange A/V transmission, after treating to connect with client, server uses the RTP/UDP agreement to give the A/V client with the A/V transfer of data; In case A/V data arrives client, the A/V client can be play output.Because the A/V data will arrive client together, if under the scene of monitoring in real time, time-delay can be very serious.
Summary of the invention
The embodiment of the invention is to provide method, streaming media server and the system that utilizes http protocol to realize flow medium function, and time-delay is significantly reduced.
Utilize http protocol to realize the method for flow medium function, comprising:
Receive the GET order, set up session according to URL address and encoder or storage system;
After setting up the session success, send response message to client, the Transfer-Encoding field in the said response message is made as chunked;
Send request msg message and give said encoder or storage system;
Reception sends to said client with said media data block again from the media data block of said encoder or storage system transmission.
The media data block more excellent, that said reception is sent from said encoder or storage system sends to said media data block after the said client again, also comprises:
Said client is committed to player plays with said media data block.
More excellent, said reception also comprises after the media data block of said encoder or storage system transmission:
This media data block is packaged into media data packet, and said media data packet comprises media data length and media data content, and said media data packet is sent to said client.
More excellent; After said client receives said media data packet; Resolve said media data packet and obtain said media data length and said media data content; When client judged that the length of said media data length and said media data content is consistent, said client was submitted to player plays with said media data block.
More excellent, also comprise:
When said client is broken off the HTTP link; Said client is sent to streaming media server and is broken off message; After said streaming media server is received and broken off message, initiate end session message to said encoder or storage system, after encoder or storage system receive said end session message; End session stops the transmission of media data piece.Streaming media server comprises:
Set up conversation module, be used to receive GET order, set up session according to URL address and encoder or storage system;
The response message module, be used to set up session success after, send response message to client, the Transfer-Encoding field in the said response message is made as chunked;
Send the request msg module, be used to send request msg message and give encoder or storage system;
Receive the data block module, be used to receive media data block, more said media data block is sent to client from encoder or storage system transmission.
More excellent, also comprise:
Break off module, be used for receiving and break off message, and initiate end session message to encoder.
More excellent, said reception data block module comprises:
The encapsulation submodule is used for the media data block that receives is packaged into media data packet, and said media data packet comprises media data length and media data content.Utilize http protocol to realize the system of flow medium function, comprising:
Client is used for sending the GET order to streaming media server;
Above-mentioned described streaming media server; Link to each other with said client, be used to receive GET order, set up session according to URL address and encoder or storage system; After setting up the session success; Send response message to client, the Transfer-Encoding field in this response message is made as chunked, sends request msg message and gives encoder;
Encoder or storage system link to each other with said streaming media server, are used to receive the described request data-message, and send media data block and give said streaming media server;
Streaming media server also is used to receive the said media data block from said encoder or storage system transmission, more said media data block is sent to said client.
More excellent, said client also is used to receive said media data block, is committed to player and plays.
Embodiment of the present invention embodiment; Utilize http protocol to realize flow medium function; Guaranteeing to have reduced the time-delay of video transmission significantly on the basis of video transmission quality, realizing real-time Transmission; Only need the GET of a HTTP to order the data flow that just can obtain to continue, the extra duty of having avoided frequent request convection media server to cause.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the http protocol that utilizes of the embodiment of the invention is realized the method flow sketch map of flow medium function;
Fig. 2 is that the present invention utilizes http protocol to realize the schematic flow sheet of another embodiment of the method for flow medium function;
Fig. 3 is the structural representation of the streaming media server of the embodiment of the invention;
Fig. 4 is that the http protocol that utilizes of the embodiment of the invention is realized the structural representation of the system of flow medium function.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.
The http protocol that utilizes that sees also the embodiment of the invention shown in Fig. 1 is realized the method flow sketch map of flow medium function, comprising:
Step S101: receive the GET order, set up session according to URL address and encoder or storage system.
Particularly, streaming media server receives the GET order of sending from client, sets up session according to URL address and encoder or storage system, sets up conversation message to encoder or storage system transmission.
Step S102: after setting up the session success, send response message to client, the Transfer-Encoding field in this response message is made as chunked.
Concrete, set up the session success after, streaming media server sends response message to client, the Transfer-Encoding field in this response message is made as chunked.This response message can be 200OK message.When the Transfer-Encoding field in the response message is made as the chunked state, representative notice client streaming media server will use this data transmission mechanism of piecemeal transfer encoding to come transmission of media data.The piecemeal transfer encoding is made up of the uncertain piece of quantity usually, and is that 0 piece is end with last size.Each data block does not have the requirement of size, and promptly 1 two field picture also can be transferred to client through a piece, and client need not generate the image of independent broadcast by the time like this; For example receive that 100 two field pictures just can play; After 1 two field picture was sent to client, client can be play, and had reduced the time-delay of video transmission so significantly; Can realize real-time Transmission, real-time video transmission in field of video monitoring is even more important.
Step S103: send request msg message and give encoder or storage system.
Step S104: receive from the media data block of encoder or storage system transmission, again this media data block is sent to client.
Implement the foregoing description; Utilize http protocol to realize flow medium function; Guaranteeing to have reduced the time-delay of video transmission significantly on the basis of video transmission quality, realizing real-time Transmission; Only need the GET of a HTTP to order the data flow that just can obtain to continue, the extra duty of having avoided frequent request convection media server to cause.
Utilize http protocol to realize the schematic flow sheet of another embodiment of the method for flow medium function below in conjunction with the present invention shown in Fig. 2, the http protocol that utilizes of the further explain embodiment of the invention is realized the method for flow medium function, comprising:
Step S201: streaming media server provides link at webpage to video, gives a specific URL address.
Step S202: video is clicked in the client-access website, obtains the URL address that defines in advance.
Step S203: client utilization http protocol sends the GET order to streaming media server.
Step S204: streaming media server is set up session according to URL address and encoder after receiving the GET order, sends to encoder and sets up conversation message.
Concrete, encoder also can be substituted by storage system, and storage system can be a cloud storage system, and its major function is medium data and other data.
Step S205: after setting up the session success, encoder sends sets up the session success message to streaming media server.
Step S206: after streaming media server receives and sets up the session success message, send response message to client, the Transfer-Encoding field in this response message is made as chunked.
Concrete, when the Transfer-Encoding field in the response message is made as the chunked state, representative notice client streaming media server will use this data transmission mechanism of piecemeal transfer encoding to come transmission of media data.The piecemeal transfer encoding is made up of the uncertain piece of quantity usually, and is that 0 piece is end with last size.Each data block does not have the requirement of size; Promptly 1 two field picture also can be transferred to client through a piece; Client need not wait until that 100 two field pictures just can play like this, and after 1 two field picture was sent to client, client can be play; Reduced the time-delay of video transmission so significantly, real-time video transmission in field of video monitoring has been even more important.
Step S207: streaming media server initiation request data-message is given encoder.
Particularly, step S206 and step S207 do not have sequencing when carrying out, and two steps can be initiated simultaneously, also can initiate respectively.
Step S208: after encoder receives request msg message, send media data block and give streaming media server.
Step S209: streaming media server sends to client with media data block, and client receives that media data block just submits to player plays.
Concrete, after streaming media server receives media data block, this media data block being packaged into media data packet, this media data packet comprises media data length and media data content; After client receives this packet; The resolution data bag obtains media data length and media data content; When client judges that the length of this media data length and media data content is consistent; Be that client is received a complete media data block, client is submitted to player plays with this media data block.
Step S210: when client was broken off the HTTP link, client was sent to streaming media server and is broken off message, after streaming media server is received and broken off message; Initiate end session message to encoder; After encoder received end session message, end session stopped the transmission of media data piece.
Implement the foregoing description; Utilize http protocol to realize flow medium function; Guaranteeing to have reduced the time-delay of video transmission significantly on the basis of video transmission quality, realizing real-time Transmission; Only need the GET of a HTTP to order the data flow that just can obtain to continue, the extra duty of having avoided frequent request convection media server to cause.Below in conjunction with the structural representation of the streaming media server of the embodiment of the invention shown in Fig. 3, the structure of this streaming media server of the further explain embodiment of the invention.
Set up conversation module 301, be used to receive GET order, set up session according to URL address and encoder or storage system.
Concrete, receive the GET order of sending from client, set up session according to URL address and encoder, set up conversation message to encoder or storage system transmission.
Response message module 302, be used to set up session success after, send response message to client, the Transfer-Encoding field in this response message is made as chunked.
Concrete; Encoder receives to send sets up conversation message; Set up the session success, send to streaming media server and set up the session success message, after response message module 302 receives and sets up the session success message; Send response message to client, the Transfer-Encoding field in this response message is made as chunked.This response message can be 200OK message.When the Transfer-Encoding field in the response message is made as the chunked state, representative notice client streaming media server will use this data transmission mechanism of piecemeal transfer encoding to come transmission of media data.The piecemeal transfer encoding is made up of the uncertain piece of quantity usually, and is that 0 piece is end with last size.Each data block does not have the requirement of size, and promptly 1 two field picture also can be transferred to client through a piece, and client need not generate the image of independent broadcast by the time like this; For example receive that 100 two field pictures just can play; After 1 two field picture was sent to client, client can be play, and had reduced the time-delay of video transmission so significantly; Can realize real-time Transmission, real-time video transmission in field of video monitoring is even more important.
Send request msg module 303, be used to send request msg message and give encoder or storage system.
Receive data block module 304, be used to receive media data block, again this media data block is sent to client from encoder or storage system transmission.
Concrete, receive data block module 304 and also comprise encapsulation submodule 3041, be used for the media data block that receives is packaged into media data packet, this media data packet comprises media data length and media data content.
Implement the foregoing description; Utilize http protocol to realize flow medium function; Guaranteeing to have reduced the time-delay of video transmission significantly on the basis of video transmission quality, realizing real-time Transmission; Only need the GET of a HTTP to order the data flow that just can obtain to continue, the extra duty of having avoided frequent request convection media server to cause.
Said apparatus can also comprise disconnection module 305, is used for receiving breaking off message, and initiates end session message to encoder or storage system.
Concrete, when client was broken off the HTTP link, client was sent to streaming media server and is broken off message; Streaming media server is initiated end session message to encoder, after encoder receives end session message after receiving and breaking off message; End session stops transmission of media data.
The http protocol that utilizes below in conjunction with the embodiment of the invention shown in Fig. 4 is realized the structural representation of the system of flow medium function, the structure of this system of the further explain embodiment of the invention.
Client 401 is used for sending the GET order to streaming media server 402.
Streaming media server 402 links to each other with client 401, is used to receive GET order, sets up session according to URL address and encoder or storage system; After setting up the session success, send response message to client, the Transfer-Encoding field in this response message is made as chunked; Send request msg message and give encoder 403.
Encoder or storage system 403 link to each other with streaming media server 402, are used to receive request msg message, and send media data block and give streaming media server 402.
Streaming media server 402 also is used to receive the media data block from encoder or storage system transmission, again this media data block is sent to client 401.
Implement the foregoing description; Utilize http protocol to realize flow medium function; Guaranteeing to have reduced the time-delay of video transmission significantly on the basis of video transmission quality, realizing real-time Transmission; Only need the GET of a HTTP to order the data flow that just can obtain to continue, the extra duty of having avoided frequent request convection media server to cause.
Wherein, client 401 also is used to receive this media data block, is committed to player and plays.Need to prove that through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement through hardware.Based on such understanding; All or part of can the coming out that technical scheme of the present invention contributes to background technology with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above disclosed preferred embodiment that is merely in the embodiment of the invention can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.
Claims (10)
1. utilize http protocol to realize the method for flow medium function, it is characterized in that, comprising:
Receive the GET order, set up session according to URL address and encoder or storage system;
After setting up the session success, send response message to client, the Transfer-Encoding field in the said response message is made as chunked;
Send request msg message and give said encoder or storage system;
Reception sends to said client with said media data block again from the media data block of said encoder or storage system transmission.
2. the method for claim 1 is characterized in that, the media data block that said reception is sent from said encoder or storage system sends to said media data block after the said client again, also comprises:
Said client is committed to player plays with said media data block.
3. the method for claim 1 is characterized in that, said reception also comprises after the media data block of said encoder or storage system transmission:
This media data block is packaged into media data packet, and said media data packet comprises media data length and media data content, and said media data packet is sent to said client.
4. method as claimed in claim 3; It is characterized in that; After said client receives said media data packet; Resolve said media data packet and obtain said media data length and said media data content, when client judged that the length of said media data length and said media data content is consistent, said client was submitted to player plays with said media data block.
5. the method for claim 1 is characterized in that, also comprises:
When said client is broken off the HTTP link; Said client is sent to streaming media server and is broken off message; After said streaming media server is received and broken off message, initiate end session message to said encoder or storage system, after encoder or storage system receive said end session message; End session stops the transmission of media data piece.
6. streaming media server is characterized in that, comprising:
Set up conversation module, be used to receive GET order, set up session according to URL address and encoder or storage system;
The response message module, be used to set up session success after, send response message to client, the Transfer-Encoding field in the said response message is made as chunked;
Send the request msg module, be used to send request msg message and give encoder or storage system;
Receive the data block module, be used to receive media data block, more said media data block is sent to client from encoder or storage system transmission.
7. streaming media server as claimed in claim 6 is characterized in that, also comprises:
Break off module, be used for receiving and break off message, and initiate end session message to encoder or storage system.
8. streaming media server as claimed in claim 6 is characterized in that, said reception data block module comprises:
The encapsulation submodule is used for the media data block that receives is packaged into media data packet, and said media data packet comprises media data length and media data content.
9. utilize http protocol to realize the system of flow medium function, it is characterized in that, comprising:
Client is used for sending the GET order to streaming media server;
Like any described streaming media server of claim 6 to 8; Link to each other with said client, be used to receive GET order, set up session according to URL address and encoder or storage system; After setting up the session success; Send response message to client, the Transfer-Encoding field in this response message is made as chunked, sends request msg message and gives encoder;
Encoder or storage system link to each other with said streaming media server, are used to receive the described request data-message, and send media data block and give said streaming media server;
Streaming media server also is used to receive the said media data block from said encoder or storage system transmission, more said media data block is sent to said client.
10. system as claimed in claim 9 is characterized in that, said client also is used to receive said media data block, is committed to player and plays.
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| CN105471869B (en) * | 2015-11-23 | 2019-05-21 | 珠海全志科技股份有限公司 | A kind of connection multiplexing method and system of internet television content requests |
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| CN109005240A (en) * | 2018-08-21 | 2018-12-14 | 浙江浙大中控信息技术有限公司 | Real time data method for subscribing based on http protocol |
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| CN112581934A (en) * | 2019-09-30 | 2021-03-30 | 北京声智科技有限公司 | Voice synthesis method, device and system |
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Effective date of registration: 20150420 Address after: Hangzhou City, Zhejiang province 310014 Xihu District 212 Moganshan Road Zoomlion Building 2 room 1401-1405 Applicant after: Hangzhou Skyvision Intelligence System Co., Ltd. Address before: 518034 Guangdong province Shenzhen city Futian District District Shennan Road Press Plaza room 1306 Applicant before: Anke Smart Cities Technolongy (PRC) Co., Ltd. Applicant before: Hangzhou Skyvision Intelligence System Co., Ltd. |
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Application publication date: 20120926 |