CN101848367A - File-based video live webcasting method - Google Patents
File-based video live webcasting method Download PDFInfo
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- CN101848367A CN101848367A CN201010179110A CN201010179110A CN101848367A CN 101848367 A CN101848367 A CN 101848367A CN 201010179110 A CN201010179110 A CN 201010179110A CN 201010179110 A CN201010179110 A CN 201010179110A CN 101848367 A CN101848367 A CN 101848367A
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Abstract
The invention discloses a file-based video live webcasting method. The method mainly comprises the following steps: when a request which is sent through hypertext transfer protocol (HTTP) by a browser is a request for watching a channel or a video on a device and the request content is legal, a coder on server end performs coded output to a video device or a record file, CGI executable program or script transmits the message of URL of a playlist file containing the information of each coded output file, the browser analyzes the message, when the analysis result is the URL address of the coded output file, the browser embeds a player plug-in to one page, prepares to play the coded output file and sends a file-sending request for sending the coded output file; and a Web server sends the coded output file according to the file-sending request, and the player plug-in plays the coded output file. The method uses the standard Web server and utilizes HTTP for data transmission, thus the cost for realizing the method is lower and the communication process is not limited by protocol.
Description
Technical field
The present invention relates to the video live webcasting technology, be specifically related to the dynamic image of the real-time change of catching or by recorded file such as dynamic image that DVD preserved live method on network by equipment such as TV tuner (tuner), monitoring camera, video cameras.
Background technology
The fast development of the Internet and popularize to the streaming media service development powerful market forces, the streaming media service increased popularity that just becoming is provided.At present, stream media technology is widely used in the every aspect of internet information services such as multimedia news briefing, online live, the web advertisement, ecommerce, video request program, long-distance education, tele-medicine, network radio station, real-time video meeting.The network information that is applied as of stream media technology exchanges and to bring revolutionary variation, has improved the efficient and the quality of social interactions, wherein video live webcasting technology comparatively commonly.
The realization of video live webcasting technology at present roughly is divided into two kinds.A kind of hardware coder and streaming media server of being to use.This method is relatively more expensive, nor flexibly.Because streaming media server is a very big software, need take more internal memory and CPU, this has just increased hardware cost; And hardware coder limits output format type, coding method etc. usually.Another is to use the software encoder and the streaming media server of appointment.This method is owing to the employing of streaming media server, thereby the same a kind of method is the same, the expense costliness of realization.In addition, above-mentioned two kinds of methods all are subject to the protocol type of being supported usually, and client also needs to support identical agreement.This has just limited being extensive use of of video live webcasting technology.
Therefore be necessary to provide a kind of improved video live webcasting method to overcome the defective of prior art.
Summary of the invention
The purpose of this invention is to provide a kind of video live webcasting method based on file, expense is lower during realization, and is not subjected to the influence of protocol type.
To achieve these goals, the invention provides a kind of video live webcasting method, comprise the steps: that browser sends request by HTML (Hypertext Markup Language), watch dynamic image on certain channel or certain equipment with request based on file; When Web server judges that described client-requested is watched the content legality of dynamic image on certain channel or certain equipment and described client-requested for request, encoder is to the output of encoding of video equipment or recorded file, and CGI executable program or script send the message of the play list file URL that comprises each coding output file information to browser; When described browser judges that described message content is play list file URL address, on the page, embed the player plug-in unit, prepare the broadcast encoder output file, and send the transmission file request that request sends the coding output file to Web server; Web server sends the coding output file according to described transmission file request; Player plug-in unit in the browser is play described coding output file.
In one embodiment of the invention, the client-requested that described browser sends comprises the programme televised live video data information that request obtains to specify display format, appointment audio frequency and video format, appointment baud rate, then, described encoder is specially the encode step of output of video equipment: described encoder is according to display format, Voice ﹠ Video form, the baud rate of appointment in the socket message, to the output of encoding of video equipment or recorded file.
In another embodiment of the present invention, described browser is after Web server sends the transmission file request of request transmission coding output file, also comprise step: described Web server sends big capability notification message to described browser, described big capability notification message comprises that the coding output file that will send is a bulky information, then, described Web server is specially according to the step that described transmission file request sends the coding output file:, described Web server constantly sends the coding output file then, the step that player plug-in in the described browser is play described coding output file is specially: described browser continues the data flow of the coding output file of the described Web server transmission of reception, and described player continues the broadcast encoder output file.
In an embodiment more of the present invention, described encoder is specially the encode step of output of video equipment: described encoder is a unit to the output of encoding of video equipment or recorded file with predetermined coding duration or predetermined output file size.
In another embodiment of the present invention, described CGI executable program or script are specially to the step that browser sends the message of the play list file URL that comprises each coding output file information: corresponding each coding output file is created each URL by extranet access; A newly-built file writes described each URL by each coding output file of extranet access successively in described file; Corresponding described document creation is by the URL of extranet access; Send the message that comprises described file to browser, then, described browser is specially to the step that Web server sends the transmission file request of request transmission coding output file: the player plug-in unit is when playing described file, URL according to each coding output file that writes down in the described file, the request of transmission sends the transmission file request of coding output file to obtain the actual coding output file, then, described Web server is specially according to the step that described transmission demand file request sends the coding output file: Web server sends the actual coding output file successively, then, the step that player plug-in unit in the described browser is play described coding output file is specially: browser receives described actual coding output file, and the player plug-in unit is play described actual coding output file successively.
In an embodiment more of the present invention, the step that described player plug-in unit is play each coding output file successively is specially: when described player plug-in unit was play the present encoding output file, Web server deleted a last coding output file of storing on the server.
In another embodiment of the present invention, described method also comprises step: when described Web server receive that described browser sends stop playing request or at the appointed time in browser when not receiving the packet of the coding output file that has sent, described encoder stops coding output, deletes temporary coding output file.
Compared with prior art, the present invention adopts the mode of played file to realize the broadcast of real time content, the Web server of employing standard sends file, and utilizes HTTP(Hypertext Transport Protocol) to carry out transfer of data between client and server end, realizes the network direct broadcasting of dynamic image.The Web server expense of standard is less in this method, and does not need other particular protocol between client and the server end, is not subjected to the influence of protocol type.In addition, present embodiment also can expand new form and encoder under the prerequisite that does not increase any cost.
Description of drawings
Fig. 1 is the flow chart that the present invention is based on the video live webcasting method of file.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, the similar elements label is represented similar elements in the accompanying drawing.
The realization of this method is to be based upon on the system architecture of server end and client composition.The hardware components of described server end comprises: TV tuner (tuner), camera or video camera, common X86 PC.TV tuner (tuner), camera or video camera etc. are connected on common X86 personal host computer.The effect of described TV tuner (tuner) provides the standard television receiving function.The effect of described camera or video camera be to its take the photograph in the journey scope the people or object monitors or carry out picture catching.Select for use the X86 personal host computer to be owing to be easy to change internal memory and CPU, increased the flexibility of hardware apolegamy according to desired video output formats of user and video quality.Like this, the dynamic image of the real-time change that the present invention can catch equipment such as TV tuner (tuner), monitoring camera, video cameras is encoded at server end, and then carries out live in client.In addition, be provided with recorded file in the described X86 PC, as DVD, like this, the present invention can encode at server end to the dynamic image that recorded file is preserved, and then carries out live in client.The software section of described server end comprises: ++ TV software 1.0, software encoder.Wherein ++ TV software 1.0 has comprised Web server described in the present invention, CGI executable program or script, the coding service is monitored.The hardware components of described client comprises ordinary individual's computer or the terminal with function of surfing the Net.The software section of described client comprises browser.Because browser is to have ordinary individual's computer of function of surfing the Net or a requisite software of terminal, so present embodiment need not additionally to install any software.
In conjunction with Fig. 1, present embodiment is specially based on the step of the video live webcasting method of file:
Step S1, the browser of client sends request by HTTP(Hypertext Transport Protocol) to Web server, watch dynamic image on certain channel or certain equipment, described request content to comprise that request obtains to specify display format, specifies audio frequency and video format, the programme televised live video data information of appointment baud rate with request;
Step S2, the Web server of server end receives described request, and described request is resolved, and judges whether the result who resolves is the request of watching the dynamic image on certain channel or certain equipment, if, continue next step, if not, change step S4;
Step S3, Web server writes down the content of described request, and passes through the CGI executable program or the script of CGI(Common gateway interface) (CGI) standard calls server end, changes step S5;
Step S4, Web server judge whether the result who resolves is the transmission file request that request sends the coding output file, if change step S17; If not, then send error message, finish to browser.
Step S5, CGI executable program or script are resolved the content of described request, judge whether the content of described request is legal, if, continue next step, if not, change step S7;
Step S6, CGI executable program or script monitor with the coding service of server end by socket (socket) and connect, and send the socket message that comprises the described request content by socket to coding service monitoring, change step S8;
Step S7, CGI executable program or script send error message to browser, finish;
Step S8, coding serve monitoring reception socket message, and described socket message is resolved, and judge whether described socket message is legal, if, continue next step, if not, change step S10;
Step S9, the encoder (encoder) of invoking server end is monitored in the coding service, encoder is according to display format, Voice ﹠ Video form, the baud rate of appointment in the socket message, video equipment or recorded file (TV tuner (tuner), camera or video camera, recorded file such as DVD) are carried out real-time coding output, at this moment, the coding service is monitored to CGI executable program or script and is sent the message that comprises coding export file name (as tv.1.wmv), changes step S11;
Step S10, the coding service is monitored to CGI executable program or script and is sent the failure response message, and after CGI executable program or script were received message, the browser transmission error message to client finished;
Step S11, CGI executable program or script resolve the described message that comprises the export file name of encode after receiving the described message that comprises the export file name of encode, judge resolve whether successful, if, continue next step, if not, commentaries on classics step S13;
Step S12, CGI executable program or script are created a play list file (as tv.asx), described play list file comprises actual coding export file name in the message that described CGI executable program or script receive (as tv.1.wmv, tv.2.wmv, tv.3.wmv...) URL, CGI executable program or script to browser send comprise described play list file name URL (as http: // 59.174.46.120/tv.asx) message, change step S14;
Step S13, CGI executable program or script send error message to the browser of client, finish;
Step S14, browser receives the described message that comprises described play list file name URL, and the described message that comprises described play list file name URL resolved, judge whether the described message content that comprises described play list file name URL is coding output file URL address, if, continue next step, if not, change step S16;
Step S15 embeds the player plug-in unit on browser page, prepare to play the coding output file on the Web server, and browser sends the transmission file request that request sends coding output file (as tv.1.wmv) by HTML (Hypertext Markup Language), changes step S17;
Step S16, browser is shown to the viewing area with the message content of being received, finishes;
After step S17, Web server receive described transmission file request, send the coding output file;
After step S18, browser received described coding output file, the player plug-in unit in the browser was play described coding output file, finished.
As seen from the above, present embodiment adopts B/S (Brower/Server, browser/server) communication pattern, can realize that the dynamic image that equipment such as TV, live monitoring camera, video camera are caught is live on network.Also can remote watching DVD, recorded file or the like.
In addition, present embodiment adopts the mode of played file to realize the broadcast of real time content, the Web server of employing standard sends file, and utilizes HTTP(Hypertext Transport Protocol) to carry out transfer of data between client and server end, realizes the network direct broadcasting of dynamic image.The Web server expense of standard is less in this method, and does not need other particular protocol between client and the server end, is not subjected to the influence of protocol type.In addition, present embodiment also can expand new form and encoder under the prerequisite that does not increase any cost.
In step S17, after Web server receives described transmission file request, send before the actual coding output file, also comprise step:
Web server sends big capability notification message to browser, described big capability notification message comprise the coding output file that will send be big capacity (for example 4G size) information (at this moment, after browser receives that the coding output file of Web server notice is big capacity information, browser then can be waited for and receive big capacity documents)
Then, described step S18 is specially:
Described browser continues the data flow of the coding output file of the described Web server transmission of reception, and described player continues to play described coding output file.
As seen from the above, because actual coding output file size is to increase in real time, during Web server notice browser file size, do not tell the actual size of browser coding output file (tv.1.wmv), but the coding output file that the notice browser will send is a vast capacity, thereby the continuous received code output file of browser data flow, the player plug-in unit continues to play received data flow.Therefore, present embodiment utilizes super large documentary information technology to support based on the real-time fluidisation of the video content of file.
In step S9, described encoder to video equipment encode output step be specially:
Described encoder is a unit to the video equipment output of encoding with predetermined coding duration (as 30 minutes) or predetermined output file size (as 200M).Particularly, during coding, when the coding duration reaches scheduled duration or coding output file and reaches pre-sizing, encoder stops coding output file tv.1.wmv, the output file tv.2.wmv that restarts to encode when coding output file tv.2.wmv reaches scheduled duration or coding output file tv.2.wmv and reaches pre-sizing, stops coding output file tv.2.wmv, the output file tv.3.wmv that restarts to encode reaches scheduled duration or pre-sizing up to coding, and the like;
In step S12, the step that CGI executable program or script generate and send the message that comprises the export file name of encoding is specially:
Corresponding each coding output file (as coding output file tv.1.wmv, coding output file tv.2.wmv, coding output file tv.3.wmv etc.) is created each URL by extranet access;
A newly-built file (as tv.asx) writes described each URL by each coding output file of extranet access successively in described file;
Corresponding described file (tv.asx) is created the URL by extranet access;
Send the message of the URL comprise described file to browser,
Then, browser is specially by the transmission file request that HTML (Hypertext Markup Language) sends request transmission coding output file among the described step S15:
The player plug-in unit is when played file (tv.asx), what write down in discovery this document is a listed files, URL according to each coding output file that writes down in the file (tv.asx), the request of transmission sends the transmission file request of coding output file to obtain actual coding output file tv.1.wmv, coding output file tv.2.wmv, coding output file tv.3.wm etc.
Then, the step of Web server transmission coding output file is specially among the step S17:
Web server sends actual coding output file tv.1.wmv, coding output file tv.2.wmv, coding output file tv.3.wmv etc. successively.
Then, step S18 is specially:
Browser received code output file tv.1.wmv, coding output file tv.2.wmv, coding output file tv.3.wmv etc., in browser received code output file, the player plug-in unit is broadcast encoder output file tv.1.wmv, coding output file tv.2.wmv, coding output file tv.3.wmv etc. successively;
When the player plug-in unit was play the present encoding output file, Web server can delete a last coding output file of storing on the server.For example when player began broadcast encoder output file tv.2.wmv, coding output file tv.1.wmv will delete; When player began broadcast encoder output file tv.3.wmv, coding output file tv.2.wmv will delete, saving the server finite storage space.
Present embodiment also comprises step:
When server end receive that browser sends stop playing request or at the appointed time in browser when not receiving the packet of the coding output file that has sent, described encoder stops coding being exported, and deletes temporary coding output file.
Do you in the present embodiment, on the browser of client, import URL, as http: // 59.174.46.120/cgi-bin/tvview? id=013﹠amp; Size=360 * 400﹠amp; Vbitrate=400, client browser promptly sends to Web server (59.174.46.120) and watches that television channel 13, video size are 360 * 400, baud rate is 400 request, after Web server (as 59.174.46.120) is received the client legitimate request, will call encoder television channel 13 is encoded, will comprise then the file tv.asx of each actual coding output file information URL (as http: // 59.174.46.120/tv.asx) send to browser.Client browser receive file (http: // 59.174.46.120/tv.asx) behind the URL, will on browser page, embed the player plug-in unit, and allow the player plug-in unit begin played file (http: // 59.174.46.120/tv.asx), during player plug-in unit played file tv.asx successively request server send each actual coding output file of writing down among the tv.asx (as http: // 59.174.46.120/tv.1.wmv, http: // 59.174.46.120/tv.2.wmv...), after server is received and is sent file request, at first notifying browser this document is vast capacity, then constantly to browser send file (as http: // 59.174.46.120/tv.1.wmv) packet, use the player plug-in unit to play while browser receives packet.So just can on browser, see live content.
Above invention has been described in conjunction with most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.
Claims (7)
1. the video live webcasting method based on file comprises the steps:
Browser sends request by HTML (Hypertext Markup Language), watches dynamic image on certain channel or certain equipment with request;
When Web server judges that described request is watched the content legality of dynamic image on certain channel or certain equipment and described request for request, encoder is to the output of encoding of video equipment or recorded file, and CGI executable program or script send the message of the play list file URL that comprises each coding output file information to browser;
When described browser judges that described message content is play list file URL address, on the page, embed the player plug-in unit, prepare the broadcast encoder output file, and send the transmission file request that request sends the coding output file to Web server;
Web server sends the coding output file according to described transmission file request;
Player plug-in unit in the browser is play described coding output file.
2. the video live webcasting method based on file as claimed in claim 1, it is characterized in that, the request that described browser sends comprises the programme televised live video data information that request obtains to specify display format, appointment audio frequency and video format, appointment baud rate
Then, described encoder to video equipment encode output step be specially:
Described encoder is according to display format, Voice ﹠ Video form, the baud rate of appointment in the socket message, to the output of encoding of video equipment or recorded file.
3. the video live webcasting method based on file as claimed in claim 1 is characterized in that, described browser also comprises step after Web server sends request transmission coding output file:
Described Web server sends big capability notification message to described browser, and described big capability notification message comprises that the coding output file that will send is a bulky information,
Then, described Web server is specially according to the step that described transmission file request sends the coding output file:
Described Web server constantly sends the coding output file,
Then, the step of playing described coding output file of the player plug-in unit in the described browser is specially:
Described browser continues the data flow of the coding output file of the described Web server transmission of reception, and described player continues the broadcast encoder output file.
4. the video live webcasting method based on file as claimed in claim 1 is characterized in that, described encoder to video equipment encode output step be specially:
Described encoder is a unit to the output of encoding of video equipment or recorded file with predetermined coding duration or predetermined output file size.
5. the video live webcasting method based on file as claimed in claim 4 is characterized in that, described CGI executable program or script are specially to the step that browser sends the message of the play list file URL that comprises each coding output file information:
Corresponding each coding output file is created each URL by extranet access;
A newly-built file writes described each URL by each coding output file of extranet access successively in described file; And
Corresponding described document creation is by the URL of extranet access; And
Send the message of the URL that comprises described file to described browser,
Then, described browser is specially to the step that Web server sends the transmission file request of request transmission coding output file:
Described player plug-in unit is when playing described file, and according to the URL of each coding output file that writes down in the described file, the transmission file request that the request of transmission sends the coding output file to be obtaining the actual coding output file,
Then, described Web server is specially according to the step that described transmission file request sends the coding output file:
Web server sends the actual coding output file successively,
Then, the step of playing described coding output file of the player plug-in unit in the described browser is specially:
Described browser receives the actual coding output file, and described player plug-in unit is play the actual coding output file successively.
6. the video live webcasting method based on file as claimed in claim 5 is characterized in that, the step that described player plug-in unit is play each coding output file successively is specially:
When described player plug-in unit was play the present encoding output file, Web server deleted a last coding output file of storing on the server.
7. the video live webcasting method based on file as claimed in claim 5 is characterized in that, also comprises step:
When described Web server receive that described browser sends stop playing request or at the appointed time in browser when not receiving the coding output file packet that has sent, described encoder stops coding being exported, and deletes temporary coding output file.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101791100A CN101848367B (en) | 2010-05-14 | 2010-05-14 | File-based video live webcasting method |
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| CN2010101791100A CN101848367B (en) | 2010-05-14 | 2010-05-14 | File-based video live webcasting method |
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| CN101848367B CN101848367B (en) | 2012-07-04 |
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| CN2010101791100A Expired - Fee Related CN101848367B (en) | 2010-05-14 | 2010-05-14 | File-based video live webcasting method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102497452A (en) * | 2011-12-28 | 2012-06-13 | 山东大学 | Online streaming media service method based on embedded terminal |
| CN102761532A (en) * | 2011-04-29 | 2012-10-31 | 腾讯科技（深圳）有限公司 | Information processing system and method for network video |
| CN102799429A (en) * | 2012-06-28 | 2012-11-28 | 新奥特（北京）视频技术有限公司 | Player system |
| WO2013033863A1 (en) * | 2011-09-07 | 2013-03-14 | Compuware Corporation | Performance monitoring of a media player launched by a web browser |
| CN103327417A (en) * | 2013-07-11 | 2013-09-25 | 亿览在线网络技术（北京）有限公司 | Method and device for directly broadcasting real-time long-distance audio and video frequency |
| CN106210010A (en) * | 2016-06-30 | 2016-12-07 | 深圳市中北明夷科技有限公司 | A kind of move page surface information transmission method and device |
| CN106534877A (en) * | 2016-10-24 | 2017-03-22 | 广州酷狗计算机科技有限公司 | Method and device for sending media stream |
| CN107517402A (en) * | 2016-06-16 | 2017-12-26 | 广州市动景计算机科技有限公司 | The method for recording and device of client and browser live video |
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| CN1312654A (en) * | 2000-03-06 | 2001-09-12 | 翰林汇软件产业有限公司 | Interactive system control method for intelligent TV network |
| US6407680B1 (en) * | 2000-12-22 | 2002-06-18 | Generic Media, Inc. | Distributed on-demand media transcoding system and method |
| US8914460B2 (en) * | 2007-03-26 | 2014-12-16 | Sound View Innovations, Llc | System and method for efficient delivery of data content |
| CN101616243B (en) * | 2009-07-17 | 2011-05-18 | 武汉宽信科技有限公司 | Universal channel system and method for realizing seamless interlinkage among various media sources in universal channel |
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| CN102761532B (en) * | 2011-04-29 | 2015-11-25 | 腾讯科技（深圳）有限公司 | The information processing system of Internet video is unified method |
| CN102761532A (en) * | 2011-04-29 | 2012-10-31 | 腾讯科技（深圳）有限公司 | Information processing system and method for network video |
| US9112825B2 (en) | 2011-09-07 | 2015-08-18 | Dynatrace Llc | Performance monitoring of a media player launched by a web browser |
| WO2013033863A1 (en) * | 2011-09-07 | 2013-03-14 | Compuware Corporation | Performance monitoring of a media player launched by a web browser |
| CN102497452B (en) * | 2011-12-28 | 2014-07-30 | 山东大学 | Online streaming media service method based on embedded terminal |
| CN102497452A (en) * | 2011-12-28 | 2012-06-13 | 山东大学 | Online streaming media service method based on embedded terminal |
| CN102799429A (en) * | 2012-06-28 | 2012-11-28 | 新奥特（北京）视频技术有限公司 | Player system |
| CN102799429B (en) * | 2012-06-28 | 2017-11-10 | 新奥特（北京）视频技术有限公司 | A kind of player system |
| CN103327417A (en) * | 2013-07-11 | 2013-09-25 | 亿览在线网络技术（北京）有限公司 | Method and device for directly broadcasting real-time long-distance audio and video frequency |
| CN107517402A (en) * | 2016-06-16 | 2017-12-26 | 广州市动景计算机科技有限公司 | The method for recording and device of client and browser live video |
| CN106210010A (en) * | 2016-06-30 | 2016-12-07 | 深圳市中北明夷科技有限公司 | A kind of move page surface information transmission method and device |
| CN106534877A (en) * | 2016-10-24 | 2017-03-22 | 广州酷狗计算机科技有限公司 | Method and device for sending media stream |
| CN106534877B (en) * | 2016-10-24 | 2019-06-25 | 广州酷狗计算机科技有限公司 | A kind of method and device sending Media Stream |
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| CN101848367B (en) | 2012-07-04 |
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