CN101068155B - Coordinate connection stream media direct broadcasting system and collection server thereof - Google Patents
Coordinate connection stream media direct broadcasting system and collection server thereof Download PDFInfo
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- CN101068155B CN101068155B CN200610127820.2A CN200610127820A CN101068155B CN 101068155 B CN101068155 B CN 101068155B CN 200610127820 A CN200610127820 A CN 200610127820A CN 101068155 B CN101068155 B CN 101068155B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1854—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with non-centralised forwarding system, e.g. chaincast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1044—Group management mechanisms
- H04L67/1048—Departure or maintenance mechanisms
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Abstract
A streaming media live telecast system of reciprocal connection type comprises indexing server, media server, collection server and a numbers of client ends. It is featured as preparing multiple issuing point as collection source of streaming media data by media server, monitoring state of obtaining the streaming media data by collection server and sending command to media server to require mediaserver to switch over onto another issuing point by collection server when streaming media data is collected by collection server. The collection server used in said system is also disclosed.
Description
Technical field
The present invention relates to stream media technology, especially relates to a kind of equity and connects flow medium live system, and the present invention provides a kind of acquisition server that is used for this system simultaneously.
Background technology
The evolution of computer networks evolutionary process is swing between concentrated and distribution.Early stage computer use pattern is that numerous users share mainframe computer, has developed personal computer later on, moves towards to distribute from concentrating.There is analogue on the internet, begins to adopt client computer (browser)-server mode, use the server of concentrating on the website.Further develop and will move towards distributed, the server of concentrating will become distribution, each user terminal be client computer be again server, equity that Here it is connects peer to peer (being called for short P2P) pattern.
In recent years, on the Internet P2P business development rapid, become the main flow of broadband internet business.The P2P technology is interosculated into a network with each user, shares bandwidth wherein, the common information of handling wherein.With traditional client computer---server mode is different, in the P2P working method, each client terminal be client computer be again server.With the sharing download file is example, downloads the fragment that each user terminal among numerous users of same file only needs file in download, intercourses then, and finally each user can both obtain complete file.
The service of P2P live streaming media is a kind ofly to adopt the direct broadcast service of P2P pattern based on the Internet, generally is realizing watching flow-medium performance synchronously on the network, and P2P live streaming media instrument has obtained using widely and approving on the internet.The P2P live streaming media has alleviated the load of serving the provider by the shared among users data, has saved the cost that service is provided, and P2P live streaming media service simultaneously has good user's property of participation, becomes a direction of future development.
Fig. 1 illustrates existing P2P flow medium live system.
In existing P 2P flow medium live system, comprise the information that is used to preserve each acquisition server, and corresponding each program is preserved the index server 101 that the client-side information of this program is downloaded in nearest a period of time request; This system also comprises the media server 102 that is used for obtaining from program source program data, this media server 102 can come out the playing programs of storing on the memory device of other network nodes or the memory device of self, this media server 102 also can be an audio-video player, reads program from storage mediums such as laser discs and is converted into the data flow broadcast; This system also has the acquisition server 103 that is used to generate the Streaming Media fragment data, acquisition server 103 is gathered media data flow from described media server 102, and the media data flow fragmentation become the stream medium data burst, and to should the Streaming Media type generating corresponding Streaming Media head data, above-mentioned data are distributed to client 104 in the system; Each client 104 in the P2P flow medium live system (four client 104A-104D shown in the figure) according to the programme information that obtains from index server 101, is directly downloaded needed program from described acquisition server 103; Perhaps download each client 104 of same program and carry out information interaction each other, download the required Streaming Media fragment data of watching program from other clients 104 of downloading same program.Detailed process is: the publishing point of setting up a media data by media server 102, acquisition server 103 is from this publishing point acquisition stream media data, and, then the information that oneself has stream medium data is published to index server 101 the media data burst; Client is downloaded the program that needs to index server 101 requests, obtains the information of the acquisition server 103 that this program is provided and client 104 information that other are downloading same program from index server 101; This client 104 is according to above-mentioned information, and the acquisition server 103 of join dependency or client 104 are to the stream medium data of their request downloading slicings; By said process, finally obtain the stream medium data of required programs.
The shortcoming of above-mentioned P2P flow medium live system is: at first, acquisition server 103 is gathered media data also data fragmentation from media server 102, the stream medium data that spectators download all is the stream medium data burst of directly or indirectly distributing from acquisition server 103, when the publishing point of media server 102 temporarily or forever can not provide normal media data owing to a variety of causes, acquisition server 103 can't be gathered media data, and then the fragment data of medium can't be provided to the user, cause the user to watch the flow-medium performance hair fastener maybe can't watch; Secondly, when the network switching performance between media server 102 and the acquisition server 103 descends or is unavailable, as a large amount of non-native system data occur and seized the network bandwidth, or because the network equipment when breaking down situations such as causing network failure, the capital causes acquisition server 103 not gather media data from media server, thereby influences watching of user.
Along with the extensive use of P2P live streaming media mode in each field, the requirement that well addresses the above problem is more and more urgent, and the inventor of this patent through scrutinizing and exploring, has proposed following solution just at the problems referred to above.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is, provides a kind of equity to connect flow medium live system, and this system can provide lasting stream medium data for spectators, makes spectators can obtain more smooth appreciation effect.The present invention also provides a kind of acquisition server that is used for this system.
Equity provided by the invention connects flow medium live system, comprises index server, media server, acquisition server and plurality of client end, and described media server prepares to have the source of a plurality of publishing point as stream medium data; Described acquisition server is when the acquisition stream media data, the situation of stream medium data is obtained in monitoring, when data traffic is unusual, described acquisition server sends instruction to media server, require it to switch to another publishing point, described index server is used to each program to preserve the information that all provide the acquisition server of this program stream media data, and the client-side information of downloading this program.
Preferably, having a plurality of media servers in the described system provides stream medium data, and each media server has more than one publishing point; Can't normally connect or repeatedly switch the publishing point data traffic when still unusual when described acquisition server monitors the media server that is using, then switch to the publishing point that is positioned on another media server.
Preferably, described media server is the stream medium data that can collect network node stores, and the stream medium data of collecting is converted into the software of data flow issue.
Preferably, described media server is can be from storage medium reading flow media data and the image documentation equipment of playing.
Preferably, described acquisition server is that the stream medium data of each publishing point generates corresponding medium head data, and when changing publishing point, acquisition server is to new medium head data of stream medium data form issue that should publishing point.
Preferably, acquisition server is numbered each medium head data, and described client determines whether to be updated to new medium head data according to the numbering of medium head data.
Preferably, described acquisition server adopts the strict form that increases preface to the numbering of each medium head data.
Preferably, the described acquisition server Traffic Anomaly of gathering media data is meant and finds that real-time code rate is lower than 1kbps or can not correctly connects the publishing point of media server continuous 5 seconds.
The present invention also provides a kind of acquisition server that above-mentioned equity connects flow medium live system that is used for, comprise data acquisition unit, stream medium data generation unit, buffer unit, download request receiving element, transmitting element, issue request unit, described collecting unit is used for gathering media data and output from the publishing point that media server provides;
Described stream medium data generation unit is used to receive the media data of described collecting unit output, and with its burst, generates the flow-medium performance data of burst, and this data fragmentation is numbered; This unit is also according to the type of the media data of described collecting unit output, generate corresponding medium head data, for each medium head data, this unit gives the integer numbering that its strictness increases preface, the flow-medium performance data of above-mentioned burst combine with Streaming Media head data, obtain complete burst stream medium data and output;
Described buffer unit be used for the burst stream medium data that the receiving stream media data generating unit is exported, and buffer memory comprises some burst stream medium datas of certain hour length programme content;
Described download request receiving element is used to receive the download request of client, obtains the title and the burst numbering of the required flow-medium performance of client;
Described transmitting element, be used for relevant information according to the download request of the client of described download request receiving element output, read the relevant burst stream medium data of described buffer unit buffer memory, and this burst stream medium data is outputed to the described client of sending download request;
Described issue request unit is used for programm name and numbering thereof according to the burst stream medium data of stream medium data generation unit generation, sends the issue request to index server, and this issue request comprises the programm name and the numbering thereof of described burst stream medium data,
Described acquisition server also comprises:
Monitoring means is used for the traffic conditions that the Monitoring Data collecting unit is gathered media data to media server, and sends monitoring result;
Judging unit is used to receive the monitoring result of monitoring means output, and according to this monitoring result, judges whether described flow is unusual, if then output needs to switch the judgement of publishing point;
The switching command unit is used to receive the judged result that described judging unit is exported, when this judged result is when needing the switching publishing point, then to send the instruction of switching publishing point to media server.
Preferably, switched some publishing point on same media server, and all can't obtain normal data flow, when perhaps this media server can't normally connect, then described judging unit output needed the judgement of switching media server;
Described switching command unit receives the sentence read result of described switching media server, and then output order switches to another media server.
Compared with prior art, the present invention has the following advantages:
1, connects in the flow medium live system in equity provided by the invention, have a plurality of stream medium data publishing point, and the acquisition server of this system can be monitored the own situation of obtaining stream medium data from media server, when the obvious mistake of flow of obtaining stream medium data from this media server is slowly or too interrupted, dynamic streaming media switch data publishing point, thereby solved because the publishing point instability causes the stream medium data issue undesired, so that influenced the problem of watching.
2, equity provided by the invention connects in the preferred version of flow medium live system, by switching to the publishing point on another media server, avoid the hardware fault of media server itself and stream medium data that network failure causes that fault is provided, thereby obtain stable stream medium data.
Description of drawings
Fig. 1 is the system configuration schematic diagram that the equity of prior art connects flow medium live system;
Fig. 2 is the system configuration schematic diagram that the equity that provides of first embodiment of the invention connects flow medium live system;
Fig. 3 is the issue of stream medium data in the first embodiment of the invention and the flow chart that request is watched;
Fig. 4 is that client realizes the flow chart that stream medium data is downloaded and watched in the first embodiment of the invention;
Fig. 5 is the flow chart that acquisition server switches issue source in the first embodiment of the invention;
Fig. 6 is the acquisition server functional block diagram that first embodiment of the invention provides.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, specific embodiments of the invention are described below in conjunction with Fig. 2.
Please referring to Fig. 2, this illustrates, and this equity connects flow medium live system and comprises index server 201, some media servers 202, acquisition server 203, plurality of client end 204.Wherein media server 202 have a plurality of, two of the 202A of media server shown in Fig. 2, media server 202B.Client 204 also has a plurality of, and Fig. 2 illustrates 204A, 204B, four clients of 204C, 204D.Acquisition server 203 also can have a plurality ofly in this system, because irrelevant for describing this embodiment, this figure only illustrates an acquisition server 203.
Described index server 201 is used to each program to preserve the information of all acquisition servers that this program stream media data is provided 202, and client 204 information of downloading this program.When certain client 204 needed to download certain program, it can send download request to index server 202, comprised the network information of this client 204 and the programm name that request is downloaded in this download request.At this moment, the network information that index server 201 can return the acquisition server of issuing this program 203 of its preservation and download the client 204 of this program, the client 204 of described request program downloading is downloaded required program according to this information from other clients 204 and acquisition server 203.That is to say that index server 202 is in charge of the relevant information of the acquisition server 203 of each client 204 of program downloading and issue program, it is not downloaded for client 204 provides content, and self is program downloading not also.Described relevant information comprises the network information and state information, and the network information refers to client 204 and acquisition server 203 residing network sites, comprises operator network and geographical position; State information is meant the numbering of the stream medium data burst of the programm name of download and program downloading.These information can be as the foundation of selecting when the client 204 of request program downloading is selected from where the downloading slicing stream medium data.
Described media server 202 is Data Sources of various media datas, is used for the program on the various recording mediums is converted into digital information and output, perhaps gathers the media data and the output that are stored on other network nodes.For example, media server 202 can be Windows 2003 Media Server softwares, and this software can be gathered various media datas and issue from various network nodes on the network.Described network node can be the server that stores media data, also can be the image documentation equipment that can read media data from storage medium.This software obtains media data and issue at certain network node, and this node is called a publishing point.In fact so-called publishing point is exactly a source of media data.In addition, media server 202 itself also can be an image documentation equipment, and the media data that these image documentation equipments will be stored on the media such as laser disc, tape plays back.Can possess a plurality of media servers on this network, Fig. 2 illustrates two media server 202A, 202B on this network, and each media server 202 can be set up a plurality of publishing point.Equity provided by the invention connects the flow medium live system difference with the prior art and is, can obtain media data from plural publishing point in the native system, these publishing point can also can be the different publishing point on the same media server 202 on different media servers.Specific to the system that present embodiment provides, it not only has a plurality of media servers 202, and has a plurality of publishing point on each media server 202.
The effect of described acquisition server 203 is to gather media data from media server 202, and the media data burst become the stream medium data burst, the medium head data that to describe stream media format simultaneously combine with described stream medium data burst, form complete burst stream medium data.This acquisition server 203 sends issue application to described index server 201, the relevant information of the program of its issue is transferred to described index server 201 issues, so that other clients 204 are used.It is different that the status of described acquisition server 203 on network and client 204 there is no, and can be considered as a kind of special client.In the present embodiment, this acquisition server 203 has certain difference with the acquisition server of prior art, this acquisition server 203 can be monitored its traffic conditions of obtaining media data from media server 202, when the obvious mistake of flow of obtaining media data from this media server 202 is slowly or too interrupted, this acquisition server 203 can send instruction to described media server 202, require it to switch to another publishing point, obtain the media data of required programs from new publishing point.When the publishing point that can't make this media server 202 upgrade publishing point or renewal still can't make transfer of data smooth, this acquisition server 203 can turn to another media server 202, for example, turns to media server 202B from media server 202A.In the process of above-mentioned switching publishing point or media server 202, this acquisition server 203 is more new media head data and issue simultaneously, uses so that new data can be downloaded the client 204 of these data.For the medium head data variation that the switching publishing point is caused can be discerned by client 204, acquisition server 203 increases the numbering of preface for each medium head data provides a strictness, when being updated to new publishing point, the medium head data number that will obtain to increase.Described client 204 will determine oneself to need to adopt new Streaming Media head data according to the situation of numbering increase.The meaning that described medium head data provide strictness to increase preface numbering is, adopts this kind numbering can avoid Streaming Media head data number to obscure, and in fact also can adopt mode such as strict descending to obtain same effect.
Described client 204 is the network nodes that need to read play stream media data on this network, and this network node has a plurality of on network.When client 204 needs certain flow-medium performance, send download request to described index server 201, the relevant information that acquisition is being issued the acquisition server 203 of this program and downloaded other clients 204 of this program comprises the network information and state information.This client 204 is according to above-mentioned information, to relevant acquisition server 203 and client 204 request program downloading.After downloading beginning, client 204 obtains the relevant information of acquisition server 203 these programs of issue, and and other clients 204 mutual information of downloading these programs, client 204 is safeguarded the above-mentioned information of also preserving, and according to above-mentioned information determine its from where the downloading slicing stream medium data.When beginning to download a program, client 204 is downloaded the Streaming Media head data of the stream medium data correspondence that obtains this program, because Streaming Media head data are relevant with the program source, therefore, when described acquisition server 203 changes publishing point, need download new Streaming Media head data again.Information in these client 204 reading flow media data bursts, and to Streaming Media head data that should the stream medium data burst, each stream medium data burst and realize streaming media playing of constantly decoding.In case the situation of publishing point occurs switching, then the numbering of Streaming Media head data will increase, client 204 is learnt in view of the above to be needed to adopt new Streaming Media head data, and adopts new Streaming Media head data to decode.
Below for the operation principle of native system is described more fully, the contrast flow chart describes the course of work of this system.
Please referring to Fig. 3, this figure is the issue of stream medium data in the present embodiment and the flow chart that request is watched.
Step S301, media server 202 is set up publishing point.
Media server 202 can obtain the issue source of media data from network, and sets up publishing point, and media server 202 can be at any time from this issue source reading of data.
Step S302, acquisition server 203 is from the publishing point image data.
Step S303, acquisition server 203 supposes that to described index server 201 request issue programs program is called X.
During acquisition server 203 request issue programs, provide state informations such as the programm name of the program of issuing and burst stream medium data numbering to described index server 201, and the network information of this acquisition server 203.Described index server writes down above-mentioned information corresponding to this programm name.
Step S304, client 204A watch the program of program X by name to index server 201 requests.
Please referring to Fig. 4, this illustrates client and realizes the download of stream medium data and the flow process of watching.This flow chart is the subsequent process of flow chart shown in Figure 3.
Step S401, client 204 is safeguarded and oneself is downloaded the state information of each program of watching.
Described state information comprises: the numbering of the stream medium data burst of 204 buffer memorys of this client, the Streaming Media head data and the numbering thereof of these burst correspondences, and other client-side informations of downloading same program, this client-side information comprises the network information and state information.
Step S402, the burst stream medium data numbering of mutual buffer memory separately between the client 204 of download same program, and the burst stream medium data numbering of acquisition server 203 buffer memorys of issue same program.Client 204 is preserved the above-mentioned information that acquires corresponding to each client 204 and acquisition server 203.
Step S403, client 204 is according to the numbering of the stream medium data burst of these client 204 buffer memorys, and other download the stream medium data burst numbering of client 204 buffer memorys of same program, and the stream medium data burst numbering of the acquisition server 203 of issue same program, the scheduling decision is from certain concrete client 204 or acquisition server 203 downloading slicing stream medium datas.
Step S404, client 204 proposes download requests to other client 204 or acquisition server 203, comprises the burst numbering of the stream medium data of request, and the max-flow medium head data number of descending slide glass that is not more than this sheet number.
Step S405, client 204 or acquisition server 203 are received the download request from other clients 204, if find oneself to have corresponding sheet, then send this sheet to the other side; If find own buffer memory to the numbering of Streaming Media head data that should sheet greater than the Streaming Media head data number in the request package, before sending stream stream medium data sheet, also should send Streaming Media head data so to the other side.
Step S406, client 204 is used the encoding format information that comprises in the Streaming Media head data of downloading, and decodes and watches downloading each stream medium data burst of returning.
Please referring to Fig. 5, this illustrates when the issue stream medium data, and acquisition server 203 switches the flow process of issue source.
Step S501, acquisition server 203 is from media server 202 acquisition stream media datas.
Step S502, acquisition server 203 detect stream medium data publishing point working condition in media server 202 acquisition stream media datas, and whether the judgment task situation is unusual.If working condition is unusual, then carry out next step.Otherwise, continue operate as normal.
Can set whether normally standard of working condition for acquisition server 203.A feasible standard is: be lower than 1kbps continuous 5 seconds or can not correctly connect the publishing point of media server 203 if find real-time code rate, so then think the publishing point operation irregularity of media server 203.
Step S503 switches to standby publishing point.This standby publishing point can be another streaming source on same the media server 203, or the standby publishing point of setting up at another media server 203.Described standby publishing point is prior ready prepd publishing point.When after switching through several times on same the media server, in the time of still can't obtaining normal data flow; When perhaps this media server can't normally connect, then can switch to another media server.
Through after the above-mentioned switching, proceed normal stream medium data issue and mutual.
Present embodiment also provides a kind of acquisition server 203, this acquisition server 203 can be realized the monitoring to the medium flow that obtains from media server 202, when flow is undesired, can send instruction to media server 202, control media server 202 switches to standby publishing point and proceeds the media data collection.When a media server repeatedly switched publishing point and still can't obtain normal data traffic, then this acquisition server 203 can switch to new media server 202.
Please referring to Fig. 6, this figure is the theory diagram of described acquisition server.As shown in the figure, described acquisition server 203 comprises: data acquisition unit 601, stream medium data generation unit 602, buffer unit 603, download request receiving element 604, transmitting element 605, issue request unit 606, monitoring means 607, judging unit 608, switching command unit 609.
Described collecting unit 601 is used for gathering media data and output from the publishing point that media server 202 provides;
Described stream medium data generation unit 602 receives the media data of described collecting unit 601 outputs, and with its burst, generates the flow-medium performance data of burst, and this data fragmentation is numbered; This unit is also according to the type of the media data of described collecting unit 601 outputs, generate corresponding medium head data, for each medium head data, this unit gives the integer numbering that its strictness increases preface, so that when causing medium head data variation, distinguished owing to the switching publishing point; After described medium head data make client obtain these data, can decode to the burst stream medium data of described programme content, realize broadcast flow-medium performance according to these medium head data; The flow-medium performance data of above-mentioned burst combine with Streaming Media head data, obtain complete burst stream medium data and output.
Described buffer unit 603 is used for the burst stream medium data of receiving stream media data generating unit 602 outputs, and buffer memory comprises some burst stream medium datas of certain hour length programme content;
Described download request receiving element 604 is used to receive the download request of client 204, obtains the title and the burst numbering of the required flow-medium performance of client;
Described transmitting element 605, be used for relevant information according to the download request of the client of described download request receiving element 604 outputs, read the relevant burst stream medium data of described buffer unit 603 buffer memorys, and this burst stream medium data is outputed to the described client of sending download request.
Described issue request unit 606, be used for programm name and numbering thereof according to the burst stream medium data of stream medium data generation unit 602 generations, send issue request to index server 201, this issue asks to comprise relevant informations such as the programm name of described burst stream medium data and numbering thereof.
Described monitoring means 607 is used to monitor the traffic conditions that collecting unit 601 is gathered media data to media server 202, and the connection state of acquisition server 203 and media server 202, and sends monitoring result.
Described judging unit 608 is used to receive the monitoring result of monitoring means 607 outputs, and according to this monitoring result, judges whether described flow is too small or too interrupted, if then output needs to switch the judgement of publishing point.If on same media server 202, switched some publishing point, all can't obtain normal data flow; Perhaps monitoring result shows that acquisition server 203 can't normally be connected with media server 202, and then these judging unit 608 outputs need the judgement of switching media server.
Described switching command unit 609 is used to receive the judged result that described judging unit 608 is exported, when this judged result is when needing the switching publishing point, then to send the instruction of switching publishing point to media server 202 according to this result; If when the judged result that is received is the switching media server, then switch to another media server.
Above-mentioned acquisition server 203 is compared with the acquisition server 103 of prior art, can gather the monitoring of flow, and judges whether that according to monitoring result needs carry out the switching of publishing point or media server, just realizes dynamic switch data issue source.
In acquisition server, above-mentioned data acquisition unit 601, stream medium data generation unit 602, buffer unit 603, download request receiving element 604, transmitting element 605, sending request unit 606 all is the functional unit that has in the prior art, the present embodiment difference with the prior art is, increased monitoring means 607, traffic conditions judging unit 608, switching command unit 609, be used to realize realize switching to publishing point to the monitoring of the flow of gathering media data with according to monitoring result, thereby the stream medium data of assurance acquisition server 203 issues is continuous, makes client 204 obtain good Streaming Media result of use.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an equity connects flow medium live system, comprises index server, media server, acquisition server and plurality of client end, it is characterized in that, described media server prepares to have the source of a plurality of publishing point as stream medium data; Described acquisition server is when the acquisition stream media data, the situation of stream medium data is obtained in monitoring, when data traffic is unusual, described acquisition server sends instruction to media server, require it to switch to another publishing point, described index server is used to each program to preserve the information that all provide the acquisition server of this program stream media data, and the client-side information of downloading this program.
2. equity according to claim 1 connects flow medium live system, it is characterized in that having a plurality of media servers in the described system provides stream medium data, and each media server has more than one publishing point; Can't normally connect or repeatedly switch the publishing point data traffic when still unusual when described acquisition server monitors the media server that is using, then switch to the publishing point that is positioned on another media server.
3. equity according to claim 1 and 2 connects flow medium live system, it is characterized in that described media server is the stream medium data that can collect network node stores, and the stream medium data of collecting is converted into the software of data flow issue.
4. equity according to claim 1 and 2 connects flow medium live system, it is characterized in that, described media server is can be from storage medium reading flow media data and the image documentation equipment of playing.
5. equity according to claim 1 and 2 connects flow medium live system, it is characterized in that, described acquisition server is that the stream medium data of each publishing point generates corresponding medium head data, when changing publishing point, acquisition server is to new medium head data of stream medium data form issue that should publishing point.
6. equity according to claim 5 connects flow medium live system, it is characterized in that acquisition server is numbered each medium head data, and described client determines whether to be updated to new medium head data according to the numbering of medium head data.
7. equity according to claim 6 connects flow medium live system, it is characterized in that, described acquisition server adopts the strict form that increases preface to the numbering of each medium head data.
8. connect flow medium live system according to claim 1 or 2 described equities, it is characterized in that the Traffic Anomaly that described acquisition server is gathered media data is meant finds that real-time code rate is lower than 1kbps or can not correctly connects the publishing point of media server continuous 5 seconds.
9. an equity that is used for aforesaid right requirement 1 connects the acquisition server of flow medium live system, comprise data acquisition unit, stream medium data generation unit, buffer unit, download request receiving element, transmitting element, issue request unit, it is characterized in that
Described collecting unit is used for gathering media data and output from the publishing point that media server provides;
Described stream medium data generation unit is used to receive the media data of described collecting unit output, and with its burst, generates the flow-medium performance data of burst, and this data fragmentation is numbered; This unit is also according to the type of the media data of described collecting unit output, generate corresponding medium head data, for each medium head data, this unit gives the integer numbering that its strictness increases preface, the flow-medium performance data of above-mentioned burst combine with Streaming Media head data, obtain complete burst stream medium data and output;
Described buffer unit be used for the burst stream medium data that the receiving stream media data generating unit is exported, and buffer memory comprises some burst stream medium datas of certain hour length programme content;
Described download request receiving element is used to receive the download request of client, obtains the title and the burst numbering of the required flow-medium performance of client;
Described transmitting element, be used for relevant information according to the download request of the client of described download request receiving element output, read the relevant burst stream medium data of described buffer unit buffer memory, and this burst stream medium data is outputed to the described client of sending download request;
Described issue request unit is used for programm name and numbering thereof according to the burst stream medium data of stream medium data generation unit generation, sends the issue request to index server, and this issue request comprises the programm name and the numbering thereof of described burst stream medium data,
Described acquisition server also comprises:
Monitoring means is used for the traffic conditions that the Monitoring Data collecting unit is gathered media data to media server, and sends monitoring result;
Judging unit is used to receive the monitoring result of monitoring means output, and according to this monitoring result, judges whether described flow is unusual, if then output needs to switch the judgement of publishing point;
The switching command unit is used to receive the judged result that described judging unit is exported, when this judged result is when needing the switching publishing point, then to send the instruction of switching publishing point to media server.
10. acquisition server according to claim 9 is characterized in that,
Switched some publishing point on same media server, all can't obtain normal data flow, when perhaps this media server can't normally connect, then described judging unit output needed the judgement of switching media server;
Described switching command unit receives the sentence read result of described switching media server, and then output order switches to another media server.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN200610127820.2A CN101068155B (en) | 2006-09-20 | 2006-09-20 | Coordinate connection stream media direct broadcasting system and collection server thereof |
| PCT/CN2007/070606 WO2008040199A1 (en) | 2006-09-20 | 2007-08-31 | Living broadcast system and method of peer-to-peer stream media, and gathering server |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610127820.2A CN101068155B (en) | 2006-09-20 | 2006-09-20 | Coordinate connection stream media direct broadcasting system and collection server thereof |
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| CN101068155A CN101068155A (en) | 2007-11-07 |
| CN101068155B true CN101068155B (en) | 2010-06-09 |
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| CN200610127820.2A Active CN101068155B (en) | 2006-09-20 | 2006-09-20 | Coordinate connection stream media direct broadcasting system and collection server thereof |
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| CN101068155A (en) | 2007-11-07 |
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