CN104935949A - Method, device and system for downloading live broadcast video data - Google Patents
Method, device and system for downloading live broadcast video data Download PDFInfo
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- CN104935949A CN104935949A CN201510340892.4A CN201510340892A CN104935949A CN 104935949 A CN104935949 A CN 104935949A CN 201510340892 A CN201510340892 A CN 201510340892A CN 104935949 A CN104935949 A CN 104935949A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23103—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion using load balancing strategies, e.g. by placing or distributing content on different disks, different memories or different servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2405—Monitoring of the internal components or processes of the server, e.g. server load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2408—Monitoring of the upstream path of the transmission network, e.g. client requests
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The application discloses a method, a device and a system for downloading live broadcast video data, wherein the method comprises the steps as follows: dividing programs as a plurality of classified groups in advance, storing the programs in different classified groups on different servers, and setting a general control server to record a corresponding relation between the program classified groups and stored server addresses, inquiring the corresponding relation while receiving a live broadcast program data request comprising serial number of the request programs transmitted by a client to determine the sever address where the programs are located so as to transmit the live broadcast program data request to the server address or transmitting the live broadcast program data request to the server address via the client to finish the download of the live broadcast program data. Because the data received by the client in the application in unit time is the program data requested by the client, the method, the device and the system of the application are more convenient for analyzing and will not appear a Kartun phenomenon in comparison with prior art.
Description
Technical field
The application relates to set-top box technique field, more particularly, relates to a kind of live video data method for down loading, device and device.
Background technology
Most Android Set Top Box adopts the live mode of IP to download live video data in the market, and is broadcasted by live video after the sequence of operations such as demultiplexing, deciphering, decoding.Wherein, what Android Set Top Box was downloaded is the live data streams that current all programme televised lives are packaged into, and data volume is huge.By resolving live data streams after downloading, the relevant information of certain the concrete program finding user to want to see, plays.
But because the data flow downloaded is huge, resolving is loaded down with trivial details, and expend time in length.Further, when bandwidth is certain, the audio, video data getting certain concrete program in the unit interval is less, and the problem easily causing live card to pause affects the experience of user.
Summary of the invention
In view of this, this application provides a kind of live video data method for down loading, device and device, for providing a kind of distributed direct multicast data acquisition methods, the problem of pausing with the live card solved existing for prior art.
To achieve these goals, the existing scheme proposed is as follows:
A kind of live video data method for down loading, comprising:
Receive the programme televised live request of data that client sends, described programme televised live request of data comprises the program code of request;
Inquire about the corresponding relation between preset program classification group and server address, server address corresponding to the program classification group at described program code place is defined as destination server address, in the server corresponding with certain program classification group, only stores the program-related information in this program classification group;
Described destination server address is sent to client, from destination server corresponding to described destination server address, programme televised live data are downloaded for client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
Preferably, described destination server address has multiple, and the described destination server corresponding to described destination server address forwards described programme televised live request of data, comprising:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
A kind of live video data method for down loading, comprising:
The programme televised live request of data comprising asked program code is sent to master control server, for program code place described in described master control server lookup program classification group corresponding to server address, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server;
Receive the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, inquire about for described destination server address and return asked programme televised live data, or, receive the programme televised live data of destination server feedback corresponding to described destination server address, these programme televised live data are, after destination server receives the described programme televised live request of data of master control server forwarding, inquire about the programme televised live data obtained.
Preferably, described destination server address is multiple, describedly sends described programme televised live request of data to described destination server address, comprising:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
A kind of live video data download apparatus, be applied to master control server, this device comprises:
Request reception unit, for receiving the programme televised live request of data that client sends, described programme televised live request of data comprises the program code of request;
Address lookup unit, for inquiring about the corresponding relation between preset program classification group and server address, server address corresponding to the program classification group at described program code place is defined as destination server address, in the server corresponding with certain program classification group, only stores the program-related information in this program classification group;
Data processing unit, for described destination server address is sent to client, from destination server corresponding to described destination server address, programme televised live data are downloaded for client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
Preferably, described destination server address has multiple, and described data processing unit, when the destination server corresponding to described destination server address forwards described programme televised live request of data, is specially:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
A kind of live video data download apparatus, be applied to client, this device comprises:
Request transmitting unit, for sending the programme televised live request of data comprising asked program code to master control server, for program code place described in described master control server lookup program classification group corresponding to server address, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server;
Data capture unit, for receiving the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, inquire about for described destination server address and return asked programme televised live data, or, receive the programme televised live data of destination server feedback corresponding to described destination server address, these programme televised live data are, after destination server receives the described programme televised live request of data of master control server forwarding, inquire about the programme televised live data obtained.
Preferably, described destination server address is multiple, and described data capture unit, when sending described programme televised live request of data to described destination server address, is specially:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
A kind of live video data download system, comprise: client, master control server and some servers, store the corresponding relation of program classification group and server address in wherein said master control server, in server described in each, only store the program-related information in the program classification group corresponding with this server address;
Client sends the programme televised live request of data comprising asked program code to master control server;
Corresponding relation between the program classification group that master control server lookup is preset and server address, is defined as destination server address by the server address corresponding to the program classification group at described program code place;
Described destination server address is fed back to client by master control server, or described programme televised live request of data is forwarded to described destination server address by master control server;
When client receives the destination server address of master control server transmission, send described programme televised live request of data to described destination server address;
The destination server corresponding with destination server address, when receiving described programme televised live request of data, is inquired about and the programme televised live data of asking to client feedback.
Preferably, the number of described destination server address is multiple, and the process that client sends described programme televised live request of data to described destination server address is specially:
Client selects certain destination server address to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value;
When the number of described destination server address is multiple, the process that described programme televised live request of data is forwarded to described destination server address is specially by master control server:
The CPU usage of each described destination server of master control server lookup, therefrom selects the destination server that CPU usage is minimum, and forwards described programme televised live request of data to it.
As can be seen from above-mentioned technical scheme, the live video data method for down loading that the embodiment of the present application provides, in advance program is divided into multiple sorted group according to certain rule, the program of different sorted group stores on a different server respectively, and the corresponding relation arranged between master control server record program classification group and the server address stored, receive client send comprise the programme televised live request of data of asked program code time, inquiry corresponding relation, determine the server address at program place, and then forward programme televised live request of data to this server address, or send programme televised live request of data by client to this server address, complete the download of programme televised live data.The method of the application, by carrying out distributed storage to program, program can be found more fast when client-requested, and the program data of client-requested is directly returned by corresponding server, thus the whole program datas of asking for client received in the client unit interval, compared to prior art, resolve convenient, and there will not be Caton phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only the embodiment of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The signaling diagram of Fig. 1 a kind of live video data downloading process disclosed in the embodiment of the present application;
The signaling diagram of Fig. 2 another kind of live video data downloading process disclosed in the embodiment of the present application;
Fig. 3 is a kind of live video data method for down loading flow chart disclosed in the embodiment of the present application;
Fig. 4 is another kind of live video data method for down loading flow chart disclosed in the embodiment of the present application;
Fig. 5 is a kind of live video data download apparatus structural representation disclosed in the embodiment of the present application;
Fig. 6 is another kind of live video data download apparatus structural representation disclosed in the embodiment of the present application;
Fig. 7 is a kind of live video data download system structural representation disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
This application provides a kind of live video data method for down loading.The application classifies according to certain rule to program in advance, for the program storage of different program classification group in different servers.And the corresponding relation of master control server stores program classification group and server address is set.The signaling diagram of live video data downloading process is illustrated see Fig. 1, Fig. 1.
As shown in Figure 1:
Client is to master control server request programme televised live data, and the corresponding relation preset by master control server lookup, returns to client by the server address at the request program place found.Client, to these Server Address Request programme televised live data, returns programme televised live data by the server of correspondence.
Except above-mentioned implementation, the embodiment of the present application additionally provides another live video data downloading mode, see the signaling diagram of Fig. 2, Fig. 2 another kind of live video data downloading process disclosed in the embodiment of the present application.
Comparison diagram 1 and Fig. 2 known:
In fig. 2, master control server after the server address finding request program place, directly to these Server Address Request programme televised live data, by server corresponding to this server address by the program push of request to client.
Next, be introduced by the scheme of different angles to the application.First, see Fig. 3, Fig. 3 be introduction the application's scheme carried out from the angle of master control server.
As shown in Figure 3, the method comprises:
The programme televised live request of data comprising asked program code that step S300, reception client send;
Step S310, inquiry determine the destination server address at the program place that program code is corresponding;
Particularly, inquire about the corresponding relation between preset program classification group and server address, the server address corresponding to the program classification group at described program code place is defined as destination server address.Wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server.
Step S320, described destination server address is sent to client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding.
Particularly, in this step, destination server address can be sent to client, from destination server corresponding to described destination server address, download programme televised live data for client.In addition, described programme televised live request of data can also be forwarded to the destination server that destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
Be understandable that, the mark of client can be carried in the programme televised live request of data that destination server forwards, push programme televised live data for destination server.
The live video data method for down loading that the embodiment of the present application provides, in advance program is divided into multiple sorted group according to certain rule, the program of different sorted group stores on a different server respectively, and the corresponding relation arranged between master control server record program classification group and the server address stored, receive client send comprise the programme televised live request of data of asked program code time, inquiry corresponding relation, determine the server address at program place, and then forward programme televised live request of data to this server address, or send programme televised live request of data by client to this server address, complete the download of programme televised live data.The method of the application, by carrying out distributed storage to program, program can be found more fast when client-requested, and the program data of client-requested is directly returned by corresponding server, thus the whole program datas of asking for client received in the client unit interval, compared to prior art, resolve convenient, and there will not be Caton phenomenon.
For the assorting process of program, multiple mode classification can be had.Such as, classify according to area belonging to program: citing as, the TV station that Hebei satellite TV, Hebei Agriculture satellite TV, the economic satellite TV in Hebei etc. belong to Hebei is attributed to a class, BTV, Beijing Agriculture satellite TV etc. is belonged to TV station of Pekinese and is attributed to a class.
In addition, can also classify according to program category, such as, variety satellite TV is all classified as a class, TV play satellite TV is all classified as a class, news satellite TV is all classified as a class, physical culture satellite TV is all classified as a class etc.
Certainly the alternate manner such as whether can also to encrypt according to program to classify to program.Different classes of program is stored in different servers respectively.
In another embodiment of the application, further disclose another kind of live video data downloading mode.
In the present embodiment, we can arrange multiple server and all store same class program, and also namely corresponding with a certain program classification group server address has multiple.In this case, above-mentioned steps S320 forwards the process of described programme televised live request of data to the destination server that described destination server address is corresponding, is specifically as follows:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
Here, determine that the busy condition of each destination server, the destination server that CPU usage is low represent it and be currently in relatively not busy state by inquiry CPU usage.Thus can forward programme televised live request of data to this destination server, the programme televised live of being asked by this destination server inquiring client terminal, and carry out the propelling movement of programme televised live data.
Be understandable that, by the mode of this enforcement, inquiry and the propelling movement of programme televised live data can be completed more fast, improve the Experience Degree of user.
In another embodiment of the application, from the angle of client, the application's scheme is described further.See Fig. 4, Fig. 4 another kind of live video data method for down loading flow chart disclosed in the embodiment of the present application.
As shown in Figure 4, the method comprises:
Step S400, to send to master control server and comprise the programme televised live request of data of asked program code;
Particularly, by sending programme televised live request of data to master control server, so that the server address corresponding to program classification group at program code place described in described master control server lookup, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server.
Step S410, receive the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, or, receive the programme televised live data of destination server feedback corresponding to described destination server address.
Particularly, when master control server feedback destination server address, client can send programme televised live request of data to this destination server address, and then obtains the programme televised live data of its feedback.If the non-feedback target server address of master control server, programme televised live request of data can be transmitted to destination server corresponding to destination server address by master control server, and destination server can by the programme televised live data-pushing of request to client.
It should be noted that, when destination server address is multiple, the above-mentioned process sending described programme televised live request of data to described destination server address can be:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
Logical detect speed of download, the destination server selecting speed of download good carries out the download of programme televised live data, can complete the download of programme televised live data more fast.
Be described the live video data download apparatus that the embodiment of the present application provides below, live video data download apparatus described below can mutual corresponding reference with above-described live video data method for down loading.
First, introduce a kind of live video data download apparatus, it is applied in above-mentioned master control server, and as shown in Figure 5, this device comprises:
Request reception unit 51, for receiving the programme televised live request of data that client sends, described programme televised live request of data comprises the program code of request;
Address lookup unit 52, for inquiring about the corresponding relation between preset program classification group and server address, server address corresponding to the program classification group at described program code place is defined as destination server address, in the server corresponding with certain program classification group, only stores the program-related information in this program classification group;
Data processing unit 53, for described destination server address is sent to client, from destination server corresponding to described destination server address, programme televised live data are downloaded for client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
Optionally, when described destination server address has multiple, described data processing unit, when the destination server corresponding to described destination server address forwards described programme televised live request of data, is specially:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
In the embodiment of the present application, in advance program is divided into multiple sorted group according to certain rule, the program of different sorted group stores on a different server respectively, and the corresponding relation arranged between master control server record program classification group and the server address stored, receive client send comprise the programme televised live request of data of asked program code time, inquiry corresponding relation, determine the server address at program place, and then forward programme televised live request of data to this server address, or send programme televised live request of data by client to this server address, complete the download of programme televised live data.The application is by carrying out distributed storage to program, program can be found more fast when client-requested, and the program data of client-requested is directly returned by corresponding server, thus the whole program datas of asking for client received in the client unit interval, compared to prior art, resolve convenient, and there will not be Caton phenomenon.
In another embodiment of the application, further provide a kind of live video data download apparatus being applied to client, as shown in Figure 6, this live video data download apparatus comprises:
Request transmitting unit 61, for sending the programme televised live request of data comprising asked program code to master control server, for program code place described in described master control server lookup program classification group corresponding to server address, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server;
Data capture unit 62, for receiving the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, inquire about for described destination server address and return asked programme televised live data, or, receive the programme televised live data of destination server feedback corresponding to described destination server address, these programme televised live data are, after destination server receives the described programme televised live request of data of master control server forwarding, inquire about the programme televised live data obtained.
Optionally, when described destination server address is multiple, described data capture unit 62 is sending the process of described programme televised live request of data to described destination server address, be specially:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
The client that the application provides, by sending programme televised live request of data to master control server, is determined the server at institute's request program place, and then is provided the programme televised live data of request by this server.The whole program datas of asking for client received in the client unit interval, compared to prior art, resolve convenient, and there will not be Caton phenomenon.
The embodiment of the present application additionally provides a kind of live video data download system, and as shown in Figure 7, this system comprises:
Client 1, master control server 2 and some servers 3, store the corresponding relation of program classification group and server address in wherein said master control server 2, in server 3 described in each, only store the program-related information in the program classification group corresponding with this server address;
Client 1 sends the programme televised live request of data comprising asked program code to master control server 2;
Master control server 2 inquires about the corresponding relation between preset program classification group and server address, and the server address corresponding to the program classification group at described program code place is defined as destination server address;
Described destination server address is fed back to client 1 by master control server 2, or described programme televised live request of data is forwarded to described destination server address by master control server 2;
When client 1 receives the destination server address of master control server 2 transmission, send described programme televised live request of data to described destination server address;
The destination server 3 corresponding with destination server address is when receiving described programme televised live request of data, and inquiry also feeds back the programme televised live data of asking to client 1.
When the number of destination server address is multiple:
The process that client sends described programme televised live request of data to described destination server address is specially:
Client selects certain destination server address to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
The process that described programme televised live request of data is forwarded to described destination server address is specially by master control server:
The CPU usage of each described destination server of master control server lookup, therefrom selects the destination server that CPU usage is minimum, and forwards described programme televised live request of data to it.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a live video data method for down loading, is characterized in that, comprising:
Receive the programme televised live request of data that client sends, described programme televised live request of data comprises the program code of request;
Inquire about the corresponding relation between preset program classification group and server address, server address corresponding to the program classification group at described program code place is defined as destination server address, in the server corresponding with certain program classification group, only stores the program-related information in this program classification group;
Described destination server address is sent to client, from destination server corresponding to described destination server address, programme televised live data are downloaded for client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
2. method according to claim 1, is characterized in that, described destination server address has multiple, and the described destination server corresponding to described destination server address forwards described programme televised live request of data, comprising:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
3. a live video data method for down loading, is characterized in that, comprising:
The programme televised live request of data comprising asked program code is sent to master control server, for program code place described in described master control server lookup program classification group corresponding to server address, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server;
Receive the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, inquire about for described destination server address and return asked programme televised live data, or, receive the programme televised live data of destination server feedback corresponding to described destination server address, these programme televised live data are, after destination server receives the described programme televised live request of data of master control server forwarding, inquire about the programme televised live data obtained.
4. method according to claim 3, is characterized in that, described destination server address is multiple, describedly sends described programme televised live request of data to described destination server address, comprising:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
5. a live video data download apparatus, is characterized in that, is applied to master control server, and this device comprises:
Request reception unit, for receiving the programme televised live request of data that client sends, described programme televised live request of data comprises the program code of request;
Address lookup unit, for inquiring about the corresponding relation between preset program classification group and server address, server address corresponding to the program classification group at described program code place is defined as destination server address, in the server corresponding with certain program classification group, only stores the program-related information in this program classification group;
Data processing unit, for described destination server address is sent to client, from destination server corresponding to described destination server address, programme televised live data are downloaded for client, or, forward described programme televised live request of data to the destination server that described destination server address is corresponding, for described destination server by request programme televised live data-pushing to client.
6. device according to claim 5, is characterized in that, described destination server address has multiple, and described data processing unit, when the destination server corresponding to described destination server address forwards described programme televised live request of data, is specially:
Inquire about the CPU usage of each described destination server, therefrom select the destination server that CPU usage is minimum, and forward described programme televised live request of data to it.
7. a live video data download apparatus, is characterized in that, is applied to client, and this device comprises:
Request transmitting unit, for sending the programme televised live request of data comprising asked program code to master control server, for program code place described in described master control server lookup program classification group corresponding to server address, and it is defined as destination server address, wherein, the program-related information in this program classification group is only stored in corresponding with certain program classification group server;
Data capture unit, for receiving the destination server address of described master control server feedback, and send described programme televised live request of data to described destination server address, inquire about for described destination server address and return asked programme televised live data, or, receive the programme televised live data of destination server feedback corresponding to described destination server address, these programme televised live data are, after destination server receives the described programme televised live request of data of master control server forwarding, inquire about the programme televised live data obtained.
8. device according to claim 7, is characterized in that, described destination server address is multiple, and described data capture unit, when sending described programme televised live request of data to described destination server address, is specially:
Certain destination server address is selected to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value.
9. a live video data download system, it is characterized in that, comprise: client, master control server and some servers, store the corresponding relation of program classification group and server address in wherein said master control server, in server described in each, only store the program-related information in the program classification group corresponding with this server address;
Client sends the programme televised live request of data comprising asked program code to master control server;
Corresponding relation between the program classification group that master control server lookup is preset and server address, is defined as destination server address by the server address corresponding to the program classification group at described program code place;
Described destination server address is fed back to client by master control server, or described programme televised live request of data is forwarded to described destination server address by master control server;
When client receives the destination server address of master control server transmission, send described programme televised live request of data to described destination server address;
The destination server corresponding with destination server address, when receiving described programme televised live request of data, is inquired about and the programme televised live data of asking to client feedback.
10. system according to claim 9, is characterized in that, the number of described destination server address is multiple, and the process that client sends described programme televised live request of data to described destination server address is specially:
Client selects certain destination server address to carry out programme televised live request of data, and detect speed of download, if speed of download is higher than preset value, then direct from this destination server address download programme televised live data, if speed of download is not higher than preset value, next destination server is then selected to carry out programme televised live request of data, till the destination server address finding speed of download higher than preset value;
When the number of described destination server address is multiple, the process that described programme televised live request of data is forwarded to described destination server address is specially by master control server:
The CPU usage of each described destination server of master control server lookup, therefrom selects the destination server that CPU usage is minimum, and forwards described programme televised live request of data to it.
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