CN106604043A - Internet-based live broadcast method and live broadcast server - Google Patents
Internet-based live broadcast method and live broadcast server Download PDFInfo
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- CN106604043A CN106604043A CN201611270040.3A CN201611270040A CN106604043A CN 106604043 A CN106604043 A CN 106604043A CN 201611270040 A CN201611270040 A CN 201611270040A CN 106604043 A CN106604043 A CN 106604043A
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Classifications
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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
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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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
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2183—Cache memory
-
- 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
- H04N21/23113—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving housekeeping operations for stored content, e.g. prioritizing content for deletion because of storage space restrictions
-
- 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
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26291—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for providing content or additional data updates, e.g. updating software modules, stored at the client
Abstract
The invention discloses an Internet-based live broadcast method and a live broadcast server. The Internet-based live broadcast method comprises the following steps: a live broadcast server receives a data request instruction sent by a client; the live broadcast server determines target media data requested by the client according to the data request instruction; the live broadcast server looks for index information of the target media data in a data index file, wherein the data index file is used to record the location of media data in a data cache pool, and the data cache pool is set in the memory of the live broadcast server and is used to cache media data from a source server; and the live broadcast server locates the target media data in the data cache pool according to the index information of the target media data, and sends the target media data to the client. Through the scheme, the investment of the live broadcast server in a distributed file system can be reduced, cost can be saved, and the management efficiency of cached media data can be improved.
Description
Technical field
The present invention relates to live field, and in particular to a kind of the Internet live broadcasting method and direct broadcast server.
Background technology
OTT is the abbreviation of " Over The Top ", refers to provide a user with various application services by the Internet.It is this
Using different with the communication service that current operator is provided, it merely with operator network, and service then by operator it
Outer third party provides.Some typical OTT business have the Internet audio frequency and video direct broadcast service etc..In existing OTT live broadcast services,
Generally the source server data of reception are stored in into distributed file system by OTT direct broadcast servers, when the terminal request of user it is straight
When broadcasting service, OTT direct broadcast servers again read media data from distributed file system, send to the terminal of user.But
Because direct broadcast server is that the data of reception are stored in distributed file system, when the data for receiving are more, it is right to increase
The input of distributed file system, management that is relatively costly and being unfavorable for data.
The content of the invention
Embodiments provide a kind of the Internet live broadcasting method and direct broadcast server, it is intended to cut down to distributed storage
The input of system, reduces cost is lifted to the data cached efficiency of management.
A kind of first aspect of the embodiment of the present invention, there is provided the Internet live broadcasting method, the Internet live broadcasting method bag
Include：
Direct broadcast server receives the data requesting instructions that client sends；
According to the data requesting instructions, the targeted media data of the client request is determined；
The index information of the targeted media data is searched in the data directory file, wherein, the data directory
File is used for position of the recording medium data in data buffer storage pond；The data buffer storage pond is arranged at the direct broadcast server internal memory
In, for caching the media data from source server；
According to the index information of the targeted media data, from the data buffer storage pond targeted media data is positioned
And send to client.
The second aspect of the embodiment of the present invention, there is provided a kind of direct broadcast server, the direct broadcast server includes：
Request of data receiving unit, for receiving the data requesting instructions of client transmission；
Target data determining unit, for the data requesting instructions received according to the request of data receiving unit, really
The targeted media data of the fixed client request；
Index information searching unit, determines for searching the target data determining unit in the data directory file
Targeted media data index information, wherein, the data directory file be used for recording medium data in data buffer storage pond
Position；The data buffer storage pond is arranged in the direct broadcast server internal memory, for caching the media data from source server；
First data transmission unit, the rope of the targeted media data for being found according to the index information searching unit
Fuse ceases, and the targeted media data is positioned from the data buffer storage pond and is sent to client.
Therefore, in embodiments of the present invention, the request of data for receiving client transmission by direct broadcast server first refers to
Order, then direct broadcast server determines the targeted media data of the client request according to the data requesting instructions, and in institute
The index information that the targeted media data is searched in data directory file is stated, wherein, the data directory file is used to record
Media data is arranged in the direct broadcast server internal memory, for caching in the position in data buffer storage pond, the data buffer storage pond
From the media data of source server, finally according to the index information of the targeted media data, from the data buffer storage pond
Position the targeted media data and send to client.The present invention program reduces direct broadcast server to distributed file system
Input, be managed in the internal memory that media data cache is entered direct broadcast server, saved cost, improve to cache matchmaker
The efficiency of management of volume data.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without having to pay creative labor, can be obtaining it according to these accompanying drawings
His accompanying drawing.
Fig. 1 realizes flow process for what the embodiment of the present invention provided the Internet live broadcasting method；
Fig. 2 provides the another of the Internet live broadcasting method and realizes flow process for the embodiment of the present invention；
Fig. 3 provides the structured flowchart of direct broadcast server for the embodiment of the present invention.
Specific embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described reality
It is only a part of embodiment of the invention to apply example, and not all embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It is described in detail below in conjunction with realization of the specific embodiment to the present invention：
Embodiment one
Fig. 1 shows that the Internet live broadcasting method that the embodiment of the present invention one is provided realizes flow process, and details are as follows：
In step S101, direct broadcast server receives the data requesting instructions that client sends.
In embodiments of the present invention, the data requesting instructions that direct broadcast server receive user is sent by client.Specifically
Ground, can receive client by the download service example (Downloading Service Instance, DSI) of direct broadcast server
The data requesting instructions of transmission.
In step s 102, according to above-mentioned data requesting instructions, the targeted media data of above-mentioned client request is determined.
In embodiments of the present invention, the user's request thread of direct broadcast server have received the request of data of client transmission
After instruction, the targeted media data of above-mentioned client request can be determined according to above-mentioned data requesting instructions.Here, by
It is the data requesting instructions for being directed to the live initiation in the Internet in user, thus, the targeted media data of request is from a certain spy
Determine TS (Transport Stream) file data of channel.TS files are the encapsulation lattice carried out under a kind of high-definition camera shoots
Formula, is characterized in that the arbitrary fragment from video starts independently to be decoded, thus is widely used in network direct broadcasting
In Video service.
In step s 103, the index information of above-mentioned targeted media data is searched in above-mentioned data directory file.
In embodiments of the present invention, it is above-mentioned straight according to the targeted media data of the client request determined in step S102
Broadcasting server can find out the index of above-mentioned targeted media data in data directory file for above-mentioned targeted media data
Information, wherein, above-mentioned data directory file is used for position of the recording medium data in data buffer storage pond；Above-mentioned data buffer storage pond sets
In being placed in above-mentioned direct broadcast server internal memory, for caching the media data from source server.That is, above-mentioned direct broadcast server will connect
The media data of each channel for receiving is stored in above-mentioned data buffer storage pond, and each media number is recorded by data directory file
According to the position in data buffer storage pond.When the targeted media data of client request is received, direct broadcast server is according to data
Index information in index file, obtains the deposit position of targeted media data.It should be noted that data buffer storage pond and data
Index file is present in the internal memory of above-mentioned direct broadcast server.
In step S104, according to the index information of above-mentioned targeted media data, from above-mentioned data buffer storage pond in positioning
State targeted media data and send to client.
In embodiments of the present invention, due to having had learned that the index information of above-mentioned targeted media data in step S103,
Thus above-mentioned direct broadcast server only need to according to the index information of above-mentioned targeted media data in data buffer storage pond to above-mentioned mesh
Mark media data is positioned, and above-mentioned targeted media data is sent to client.Due to data directory file and data buffer storage
Pond is present in server memory, and it is very fast that data are read from internal memory, it is thus possible to live in client request
When servicing and carrying out channel switch, quick obtaining media data reduces postponing.
Fig. 2 shows that the another of the Internet live broadcasting method that the embodiment of the present invention one is provided realizes flow process, and details are as follows：
In step s 201, when above-mentioned direct broadcast server starts, to above-mentioned data buffer storage pond and above-mentioned data directory file
Initialized.
In embodiments of the present invention, when above-mentioned direct broadcast server starts, above-mentioned data buffer storage pond and above-mentioned data are entered
Row initialization.Wherein, because above-mentioned data buffer storage pond is present in internal memory, thus, when direct broadcast server starts, first to
The system application predetermined number memory element of direct broadcast server；Direct broadcast server is that predetermined number is distributed in above-mentioned data buffer storage pond
After individual memory element, can continue respectively each memory element to be divided into into continuous 4K byte storage blocks, while storing for each
Unit is indexed value numbering, the initialization of complete paired data cache pool, it should be noted that each memory element of above-mentioned distribution
Size be fixed.For example, when the capacity of cache pool acquiescence is 2G bytes, the quantity of said memory cells can be 8196
Individual, the size of said memory cells is 256K bytes, and the index value numbering of said memory cells can be 0 to 8195.Certainly,
The number of said memory cells can calculate the size being actually needed according to the quantity of channel and code check, then it is appropriate increase or
Reduce, be not construed as limiting herein.
Meanwhile, direct broadcast server also needs to initialize data index file, and its flow process is as follows：In direct broadcast server
During startup, caching channel list is obtained.Above-mentioned caching channel list can be by direct broadcast server on startup from extensible markup
Read in language (eXtensible Markup Language, XML) file.Wherein, if channel is in current server, adopt
IP and port with current server；If channel is not in current server, to main recording channel (Peer Streaming
Instance, PSI) request is sent, obtain the position of above-mentioned channel.Above-mentioned caching channel column tableau format is as shown in the table：
| Caching channel list | Channel ID1 | Channel ID2 | Channel ID3 | …… |
After the initialization to above-mentioned caching channel list is completed, by by the management thread of direct broadcast server from above-mentioned table
Channel to be cached is read in lattice, then according to the current time, the predetermined number for calculating channel to be cached is continuous TS point
The URL (Uniform Resource Locator, URL) of piece, wherein, mutually it is separated between adjacent TS bursts
Default time interval.If the data of channel to be cached are received by this grade of DSI, the IP and port using this grade of DSI；
If what data to be cached not had been received by the DSI of this grade, would need what is be located to the above-mentioned channel to be cached of main PSI inquiries
The IP of DSI and port.It should be noted that above-mentioned channel to be cached is set by developer, for example, for some use
The more VHI of family number of requests, can be as channel to be cached；The unexpected winner less for certain user's number of requests
Channel, then without the need for carrying out data buffer storage to it herein.It is alternatively possible to the value of above-mentioned predetermined number is taken into 7, will be above-mentioned default
Time take 10 seconds, i.e. management thread according to above-mentioned channel cache list, read channel to be cached, then according to it is current when
Between calculate the URL of 7 continuous TS bursts, wherein the time interval of adjacent TS bursts 10 seconds.Then get above-mentioned
The URL of channel ID and corresponding TS bursts is packed in TS document channels correspondence table, above-mentioned TS document channels correspondence tableau format
It is as shown in the table：
After above-mentioned TS document channels correspondence table is initialized, TS will be created according to above-mentioned TS document channels correspondence table
File Index Table.What above-mentioned TS File Index Tables were stored is the start-stop rope of each TS file being buffered in data buffer storage pond
Quotation marks.Above-mentioned start-stop call number is the TS files that cached in the starting memory location in data buffer storage pond and terminates memory element
The numbering of index value.By above-mentioned TS File Index Tables, according to the size and the size of memory element of TS files, can calculate really
Make the corresponding TS files of memory element in cache pool.It should be noted that each start-stop of TS files in cache pool is deposited
Storage unit must be complete.Above-mentioned TS file indexes tableau format is as follows：
Finally, according to the order of channel to be cached in above-mentioned TS files corresponding lists, cache file list is treated in establishment, and will
The corresponding first TS burst of each channel to be cached is stored in be treated in cache file table, then treats caching text according to above-mentioned by DSI
Part table starts once to cache correspondence TS files.That is, the above-mentioned information for treating that cache file table is preserved is the TS files that will be cached
URL queues.Can by the caching thread of DSI from the above-mentioned original position for treating cache file table once obtain need caching
The URL of TS files, then obtains the TS data, it should be noted that above-mentioned to treat in cache file from PSI or the DSI for specifying
The queue of the first in first out that storage is.It is above-mentioned to treat that cache file row tableau format is as follows：
| Treat cache file list | TS11_URL | TS21_URL | …… | TSN1_URL |
So far, the initialization to data index file is completed, and direct broadcast server can start caching from source server
Media data, and the management of the media data to caching is realized by above-mentioned data directory file.
In step S202, what above-mentioned direct broadcast server received that above-mentioned source server sends treats buffered media data, will be upper
State and treat that buffered media data is stored in above-mentioned data buffer storage pond.
In step S203, the position that buffered media data is stored in above-mentioned data buffer storage pond is treated according to above-mentioned, to the number
It is updated according to index file.
In embodiments of the present invention, three TS file tables are additionally provided with, TS file tables has respectively been cached, just asking TS files
Table and expired TS files table；The caching thread of above-mentioned direct broadcast server can be treated to obtain a TS in cache file list from above-mentioned
The URL of file, then according to the URL of the above-mentioned TS files for getting, receives the media data of source server transmission and is stored in number
According in cache pool.After above-mentioned TS file caches are finished, the URL of above-mentioned TS files is added the end for having cached TS file tables.
It should be noted that the caching thread of above-mentioned direct broadcast server can obtain media data by this grade of DSI from other DSI,
Media data can be obtained from PSI by this grade of DSI, be not construed as limiting herein.
Alternatively, in order to preferably manage above-mentioned data directory file and cache pool, above-mentioned the Internet live broadcasting method is also wrapped
Include：
Above-mentioned direct broadcast server periodically removes the index information of media data out of date in above-mentioned data directory file,
And reclaim the internal memory that above-mentioned media data out of date takes in above-mentioned cache pool.
Wherein, in direct broadcast server, management thread is provided with, the number of above-mentioned management thread is the CPU numbers of server,
Thus, the number of the channel to be cached of each thread management is total channel number cooking Thread Count to be cached.Above-mentioned management line
Journey property price cycle calculates the URL of the TS files of channel to be cached, and according to result of calculation, and according to calculated result,
To above-mentioned TS document channels correspondence table, TS File Index Tables, treat that cache file list and expired TS files table are updated.Together
When, in the TS files for occurring having timed, out, management thread will be in above-mentioned TS document channels correspondence table, TS file indexes
The corresponding list item of the TS files having timed, out is deleted in table, cache file list and expired TS files table, while reclaiming
Internal memory in data buffer storage pond.Internal memory is reused during data buffer storage, it is to avoid because applying for that internal memory goes out repeatedly
Existing RAM leakage, RAM fragmentation and internal memory increase out of control and low adverse consequencess of operational efficiency that cause server.
Alternatively, in order to save server memory, what above-mentioned direct broadcast server reception source server sent treats buffered media
Data, also include afterwards：
Treat that buffered media data is stored in the distributed file system of source server by above-mentioned；
The above-mentioned index information that above-mentioned targeted media data is searched in above-mentioned data directory file, also includes afterwards：
If there is no the index information of above-mentioned targeted media data in above-mentioned data directory file, from above-mentioned direct broadcast service
Above-mentioned targeted media data is read in the distributed file system of device and is sent to client.
Wherein, when above-mentioned TS document channels correspondence table is initialized, the URL of the TS files of the channel of hot topic is only saved,
That is, for the media data of unexpected winner channel, it is not stored in the data buffer storage pond of server, but is stored in distributed field system
In system, unexpected winner channel can be so avoided to take the memory source of VHI.Therefore, when the targeted media data of user's request
When coming from the media data of unexpected winner channel, then the index of above-mentioned targeted media data cannot be found in data directory file
Information.At this time, it may be necessary to direct broadcast server directly reads targeted media data from distributed file system and sends to client.
In order that scheme provided in an embodiment of the present invention becomes more apparent, the embodiment of the present invention is illustrated herein and is provided
The Internet live broadcasting method process：
User sends data requesting instructions by client, that is, obtain target TS file；
The user's request thread of server is searched and has cached TS files, if above-mentioned caching has above-mentioned mesh in TS files
The index information of mark TS files, then obtain the start-stop call number of above-mentioned TS files from above-mentioned TS File Index Tables, then will be upper
State TS files and add the end for just asking TS file tables；
According to the start-stop call number of the target TS file for getting, corresponding memory element is read in data buffer storage pond,
And by the data is activation for reading to client.Because the size of memory element is fixed as 4K bytes, therefore send every time to visitor
The data at family end are also 4K bytes；
After data is activation is finished, the corresponding TS files just asked in TS file tables are deleted；
If the index information of above-mentioned target TS file is not found in TS file tables are cached, from distributed document
Target TS file cocurrent is read in system and delivers to client.
In embodiments of the present invention, direct broadcast server is stored in popular channel is data cached in internal storage data cache pool
In, and create for data buffer storage pond and index, while be stored in the channel of unexpected winner is data cached in distributed file system, when connecing
When receiving the data requesting instructions of client, using the media data cached in data directory ff internal memory, nothing is being searched
In the case of fruit, then go in distributed file system to search.Because in most cases, direct broadcast server can be obtained from internal memory
Data Concurrent delivers to client, thus the request answer speed of client is greatly improved, without the need for excessive input resource in distribution
In formula file system, direct broadcast service quality is improve.Data directory file is utilized simultaneously, improves the media data to caching
The efficiency of management.
One of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method can be
Related hardware is instructed to complete by program, corresponding program can be stored in a computer read/write memory medium,
Above-mentioned storage medium, such as ROM/RAM, disk or CD.
Embodiment two
Fig. 3 shows the concrete structure block diagram of the direct broadcast server that the embodiment of the present invention two is provided, for convenience of description, only
Show the part related to the embodiment of the present invention.The direct broadcast server 3 includes：Request of data receiving unit 31, target data
Determining unit 32, index information searching unit 33, the first data transmission unit 34.
Wherein, request of data receiving unit 31, for receiving the data requesting instructions of client transmission；
Target data determining unit 32, the request of data for being received according to above-mentioned request of data receiving unit 31 refers to
Order, determines the targeted media data of above-mentioned client request；
Index information searching unit 33, for searching above-mentioned target data determining unit 32 in above-mentioned data directory file
It is determined that targeted media data index information, wherein, above-mentioned data directory file be used for recording medium data in data buffer storage
The position in pond；Above-mentioned data buffer storage pond is arranged in above-mentioned direct broadcast server internal memory, for caching the media from source server
Data；
First data transmission unit 34, for the targeted media data found according to above-mentioned index information searching unit 33
Index information, above-mentioned targeted media data is positioned from above-mentioned data buffer storage pond and is sent to client.
Alternatively, above-mentioned direct broadcast server 3 also includes：
Data initialization unit, for when direct broadcast server starts, to above-mentioned data buffer storage pond and above-mentioned data directory
File is initialized；
First media data cache unit, for receive that above-mentioned source server sends buffered media data is treated, will be above-mentioned
Treat that buffered media data is stored in above-mentioned data buffer storage pond；
Index file updating block, it is above-mentioned for treating that buffered media data is stored according to above-mentioned media data cache unit
The position in data buffer storage pond, is updated to above-mentioned data directory file.
Alternatively, above-mentioned direct broadcast server also includes：
Stale data clears up unit, for periodically removing above-mentioned data directory file in media data out of date rope
Fuse ceases, and reclaims the internal memory that above-mentioned media data out of date takes in above-mentioned cache pool.
Above-mentioned direct broadcast server 3 also includes：
Second media data cache unit, for treating the distributed document that buffered media data is stored in source server by above-mentioned
In system；
Second data transmission unit, for searching in data directory file when above-mentioned index information searching unit 33
To above-mentioned targeted media data index information when, above-mentioned target is read from the distributed file system of above-mentioned direct broadcast server
Media data is simultaneously sent to client.
Alternatively, above-mentioned data initialization unit, specifically includes：
Memory element distributes subelement, for distributing predetermined number memory element for above-mentioned cache pool, wherein, each is deposited
The size of storage unit is fixed；
Memory element numbering subelement, each memory element for distributing under subelement distributes said memory cells presses suitable
Sequence is indexed value numbering；
Memory element divides subelement, for each memory element that said memory cells are distributed under subelement distribution to be divided
For continuous 4K memory blocks, the initialization to above-mentioned cache pool is completed.
In embodiments of the present invention, direct broadcast server is stored in popular channel is data cached in internal storage data cache pool
In, and create for data buffer storage pond and index, while be stored in the channel of unexpected winner is data cached in distributed file system, when connecing
When receiving the data requesting instructions of client, using the media data cached in data directory ff internal memory, nothing is being searched
In the case of fruit, then go in distributed file system to search.Because in most cases, direct broadcast server can be obtained from internal memory
Data Concurrent delivers to client, thus the request answer speed of client is greatly improved, without the need for excessive input resource in distribution
In formula file system, direct broadcast service quality is improve.Data directory file is utilized simultaneously, improves the media data to caching
The efficiency of management.
It should be noted that in several embodiments provided herein, it should be understood that disclosed device and side
Method, can realize by another way.For example, device embodiment described above is only schematic, for example, above-mentioned
The division of unit, only a kind of division of logic function can have other dividing mode, such as multiple units when actually realizing
Or component can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, institute
The coupling each other for showing or discussing or direct-coupling or communication connection can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, mechanical or other forms.
For aforesaid each method embodiment, for easy description, therefore it is all expressed as a series of combination of actions, but
It is that those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to the present invention, certain
A little steps can adopt other orders or while carry out.Secondly, those skilled in the art also should know, be retouched in description
The embodiment stated belongs to preferred embodiment, and involved action and module might not all be necessary to the present invention.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, without the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiments.
It is more than to a kind of preferred embodiment provided by the present invention, for one of ordinary skill in the art, according to this
The thought of inventive embodiments, will change in specific embodiments and applications, and to sum up, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of the Internet live broadcasting method, it is characterised in that the Internet live broadcasting method includes：
Direct broadcast server receives the data requesting instructions that client sends；
According to the data requesting instructions, the targeted media data of the client request is determined；
The index information of the targeted media data is searched in the data directory file, wherein, the data directory file
For recording medium data data buffer storage pond position；The data buffer storage pond is arranged in the direct broadcast server internal memory,
For caching the media data from source server；
According to the index information of the targeted media data, the targeted media data is positioned from the data buffer storage pond concurrent
Deliver to client.
2. the Internet live broadcasting method as claimed in claim 1, it is characterised in that the Internet live broadcasting method, also includes：
When the direct broadcast server starts, the data buffer storage pond and the data directory file are initialized；
What the direct broadcast server received that the source server sends treats buffered media data, treats that buffered media data is deposited by described
In entering the data buffer storage pond；
Treat the position that buffered media data is stored in the data buffer storage pond, to carry out more the data directory file according to described
Newly.
3. the Internet live broadcasting method as claimed in claim 1, it is characterised in that the Internet live broadcasting method, also includes：
The direct broadcast server periodically removes the index information of media data out of date in the data directory file, and returns
Receive the internal memory that media data out of date described in the cache pool takes.
4. the Internet live broadcasting method as claimed in claim 2, it is characterised in that the direct broadcast server receives source server and sends out
That what is sent treats buffered media data, also includes afterwards：
Treat that buffered media data is stored in the distributed file system of source server by described；
The index information that the targeted media data is searched in the data directory file, also includes afterwards：
If there is no the index information of the targeted media data in the data directory file, from the direct broadcast server
The targeted media data is read in distributed file system and is sent to client.
5. the Internet live broadcasting method as claimed in claim 2, it is characterised in that when direct broadcast server starts, to data buffer storage
Pond and data directory file are initialized, including：
Distribute predetermined number memory element for the cache pool, wherein, the size of each memory element is fixed；
It is indexed value numbering in order to each memory element；
Each memory element is divided into into continuous 4K memory blocks, the initialization to the cache pool is completed.
6. a kind of direct broadcast server, it is characterised in that the direct broadcast server includes：
Request of data receiving unit, for receiving the data requesting instructions of client transmission；
Target data determining unit, for the data requesting instructions received according to the request of data receiving unit, determines institute
State the targeted media data of client request；
Index information searching unit, for searching the mesh that the target data determining unit determines in the data directory file
The index information of mark media data, wherein, the data directory file is used for position of the recording medium data in data buffer storage pond；
The data buffer storage pond is arranged in the direct broadcast server internal memory, for caching the media data from source server；
First data transmission unit, the index letter of the targeted media data for being found according to the index information searching unit
Breath, the targeted media data is positioned from the data buffer storage pond and is sent to client.
7. direct broadcast server as claimed in claim 6, it is characterised in that the direct broadcast server also includes：
Data initialization unit, for when direct broadcast server starts, to the data buffer storage pond and the data directory file
Initialized；
First media data cache unit, for receive that the source server sends buffered media data is treated, waits to delay by described
Deposit media data to be stored in the data buffer storage pond；
Index file updating block, for treating that buffered media data is stored in the data according to the media data cache unit
The position of cache pool, is updated to the data directory file.
8. direct broadcast server as claimed in claim 6, it is characterised in that the direct broadcast server also includes：
Stale data clears up unit, for periodically removing the data directory file in media data out of date index letter
Breath, and reclaim the internal memory that media data out of date described in the cache pool takes.
9. direct broadcast server as claimed in claim 7, it is characterised in that the direct broadcast server also includes：
Second media data cache unit, for treating the distributed file system that buffered media data is stored in source server by described
In；
Second data transmission unit, for it cannot find in data directory file when the index information searching unit described in
During the index information of targeted media data, the target medium number is read from the distributed file system of the direct broadcast server
According to and send to client.
10. direct broadcast server as claimed in claim 7, it is characterised in that the data initialization unit, specifically includes：
Memory element distributes subelement, for distributing predetermined number memory element for the cache pool, wherein, each storage is single
The size of unit is fixed；
Memory element numbering subelement, each memory element for distributing under subelement distributes the memory element is entered in order
Row index values are numbered；
Memory element divides subelement, for each memory element that the memory element is distributed under subelement distribution to be divided into into company
Continuous 4K memory blocks, complete the initialization to the cache pool.
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