CN109347967A - A kind of method and device obtaining audio, video data - Google Patents
A kind of method and device obtaining audio, video data Download PDFInfo
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- CN109347967A CN109347967A CN201811299963.0A CN201811299963A CN109347967A CN 109347967 A CN109347967 A CN 109347967A CN 201811299963 A CN201811299963 A CN 201811299963A CN 109347967 A CN109347967 A CN 109347967A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims description 44
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 6
- 241001269238 Data Species 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000003321 amplification Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 5
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- 238000003199 nucleic acid amplification method Methods 0.000 description 5
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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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
Abstract
The invention discloses a kind of method and devices for obtaining audio, video data, this method comprises: receiving the audio, video data that client is sent downloads request, wherein, audio, video data downloading request includes the code rate of audio, video data to be played, according to the index list of the code rate of audio, video data to be played and audio, video data, determine audio, video data corresponding with the code rate of audio, video data to be played, and it is sent to client, the index list of the audio, video data is obtained after handling the audio, video data downloaded from CDN server.In above-mentioned technical proposal, edge device can satisfy the audio, video data downloading request of the different code rate requirements of client transmission, to reduce bandwidth of the client from CDN server downloading resource.
Description
Technical field
The present embodiments relate to P2P (Peer to Peer networking, peer-to-peer network) fields more particularly to one
Kind obtains the method and device of audio, video data.
Background technique
With the fast development of audio-video website, CDN (Content Delivery Network, content distributing network) band
Width is also gradually increasing, and service pressure and bandwidth are also brought to CDN server while bringing income to CDN in audio-video website
Cost.In the prior art, consider that P2P is carried out by edge device (such as router, light cat, set-top box) to be shared to be reduced to
The request amount and bandwidth of CDN.But in this application scenarios just with the upstream bandwidth and memory space of edge device, and not
Efficiently use the computing capability of edge device.
Summary of the invention
The embodiment of the present invention provide it is a kind of obtain audio, video data method and device, due to P2P amplification ratio refer to from
The ratio of the received effective byte of P2P network and the byte of CDN server downloading, edge device can not only use P2P technology
Share audio-video, while making full use of the computing capability of itself, transcoding is carried out to audio, video data, can be increased from P2P network
Received effective byte reduces the byte downloaded from CDN server, improves P2P amplification ratio, the final download bandwidth for reducing CDN.
A kind of method obtaining audio, video data provided in an embodiment of the present invention, comprising:
It receives the audio, video data that client is sent and downloads request, the audio, video data downloading request includes described wait broadcast
The code rate for the audio, video data put；
According to the index list of the code rate of the audio, video data to be played and audio, video data, determine with it is described to
The corresponding audio, video data of the code rate of the audio, video data of broadcasting, and it is sent to the client；The rope of the audio, video data
Drawing list is to obtaining after handling from the audio, video data that content distribution network CDN service device is downloaded.
In above-mentioned technical proposal, edge device, can needle after receiving the audio, video data downloading request of client transmission
To code rate requirement different in audio, video data downloading request, determine that specific code rate institute is right according to the index list of audio, video data
The audio, video data answered, and it is sent to client.Edge device can satisfy the sound view of the different code rate requirements of client transmission
Frequency data download request increases from the received effective byte of P2P network, reduces the byte downloaded from CDN server, improves P2P
Amplification ratio, it is final to reduce bandwidth of the client from CDN server downloading resource.
Optionally, described that the audio, video data downloaded from CDN server is handled to obtain the audio, video data
Index list, comprising:
Periodically first task list is obtained from index server；
Audio, video data corresponding with the first task list is downloaded according to the first task list；
The corresponding audio, video data of the first task list is subjected to transcoding；
According to the ID (Identification, identity number) of the code rate of the audio, video data after transcoding and P2P equipment,
Generate the index list of the audio, video data；
Optionally, after the index list for generating the audio, video data, further includes:
The index list of the audio, video data is sent to the index server, so that the index server updates
The Resources list.
In above-mentioned technical proposal, edge device periodically obtains first task list from index server, and according to first
Task list downloads corresponding audio, video data, then the audio, video data is carried out transcoding, so as to meet difference
Client send different code rates require audio, video data download request.Further, after edge device is according to transcoding
The code rate of audio, video data and the ID of P2P equipment generate the index list of audio, video data, and are sent to index server, can be with
So that index server will specifically can satisfy under client audio, video data after the request for receiving client transmission
The list for carrying the edge device of request is sent to client, opposite to reduce bandwidth of the client from CDN server downloading resource.
Correspondingly, the present invention provides another method for obtaining audio, video data, comprising:
Playing audio-video instruction is received, the playing audio-video instruction includes the code rate of audio, video data to be played；
According to the code rate of the audio, video data to be played, the first P2P list of devices is obtained from index server；It is described
First P2P list of devices is the first P2P that the index server is determined according to the code rate of the audio, video data to be played
The list of equipment composition, the first P2P equipment are stored with sound view corresponding with the code rate of the audio, video data to be played
Frequency evidence；
According to the first P2P list of devices, obtained and the audio, video data to be played from the first P2P equipment
The corresponding audio, video data of code rate.
In above-mentioned technical proposal, after client receives playing audio-video instruction, according to audio, video data to be played
Code rate obtains the first P2P list of devices from index server, and obtains corresponding audio, video data from the first P2P equipment.Client
End does not obtain audio, video data from CDN server, so that the bandwidth of CDN server downloading resource is reduced, it is opposite to improve P2P amplification
Than.
Optionally, described according to the first P2P list of devices, from the first P2P equipment obtain with it is described to be played
Audio, video data the corresponding audio, video data of code rate, comprising:
Audio, video data downloading request is sent to the first P2P equipment, the audio, video data downloading request includes institute
State the code rate of audio, video data to be played；
Receive the audio, video data corresponding with the code rate of the audio, video data to be played.
In above-mentioned technical proposal, the concrete mode that client obtains audio, video data from the first P2P equipment is provided.
Optionally, further includes:
When the first P2P equipment is abnormal, again according to the code rate of the audio, video data to be played, from rope
Draw server and obtain the first P2P list of devices, until getting whole described and audio, video datas to be played
The corresponding audio, video data of code rate.
In above-mentioned technical proposal, when the first P2P equipment is abnormal, client obtains first from index server again
P2P list of devices, to ensure that client gets complete audio, video data.
Optionally, further includes:
If having not been obtained from the index server to the first P2P list of devices, from CDN server obtain with it is described
The corresponding audio, video data of the code rate of audio, video data to be played.
In above-mentioned technical proposal, only when client does not get the first P2P list of devices from index server, just meeting
From audio, video data needed for CDN server downloading, band of the client from CDN server downloading resource is also just relatively reduced
It is wide.
Correspondingly, the present invention provides another method for obtaining audio, video data, comprising:
It receives client and sends the first request, first request includes the code rate of audio, video data to be played, described
First request is that client is sent after receiving playing audio-video instruction；
According to the code rate of the audio, video data to be played, the first P2P list of devices is determined from the Resources list；It is described
The Resources list includes the index list for the audio, video data that each P2P equipment is sent；The first P2P list of devices includes multiple
One P2P equipment, the first P2P equipment are stored with audio-video number corresponding with the code rate of the audio, video data to be played
According to；
The first P2P list of devices is sent to the client, so that the client is set according to the first P2P
Standby list obtains audio, video data corresponding with the code rate of the audio, video data to be played from the first P2P equipment.
In above-mentioned technical proposal, index server is after receiving the first request of client transmission, according to the first request
In audio, video data to be played code rate, determine the first P2P list of devices, and the first P2P list of devices is sent to
Client, in order to which first P2P equipment of the client into the first P2P list of devices sends downloading request, to reduce visitor
Bandwidth of the family end from CDN server downloading resource.
Optionally, in the code rate according to the audio, video data to be played, first is determined from the Resources list
Before P2P list of devices, further includes:
Receive the request of the acquisition first task list of the first P2P equipment transmission；And according to described the first of preset quantity
Request generates the first task list；
The first task list is sent to the first P2P equipment, so that the first P2P equipment is according to described
One task list downloads audio, video data corresponding with the first task list.
In above-mentioned technical proposal, index server generates first task list according to the first of preset quantity the request
To generate first task list according to the request of audio, video data most popular under current environment.First task list is sent to
First P2P equipment, so that the first corresponding audio, video data of P2P device downloads, being equivalent to arrives the first P2P device downloads
Most popular audio, video data under current environment.It is requested to meet the downloading of the audio, video data of client as far as possible, reduces visitor
Bandwidth of the family end from CDN server downloading resource.
Optionally, it is described the first task list is sent to the first P2P equipment after, further includes:
Receive the index list for the audio, video data that the first P2P equipment is sent, the index column of the audio, video data
Table the first P2P equipment generates after carrying out transcoding to the corresponding audio, video data of the first task list；The sound
The index list of video data includes the ID of the first P2P equipment and the code rate of audio, video data；
The index list of the audio, video data sent according to the first P2P equipment updates described the Resources list.
In above-mentioned technical proposal, index server receives the index list for the audio, video data that the first P2P equipment is sent, root
The Resources list is updated according to index list, index server is equivalent to and has updated the audio, video data stored in the first P2P equipment
The index of different code rates, so that determining to can satisfy client download requests in the first request for receiving client
The first P2P list of devices, thus reduce client from CDN server downloading resource bandwidth.
Correspondingly, the embodiment of the invention also provides a kind of devices for obtaining audio, video data, comprising:
Receiving unit, for receiving the audio, video data downloading request of client transmission, the audio, video data downloading is asked
Seek the code rate including the audio, video data to be played；
Processing unit, for according to the code rate of the audio, video data to be played and the index list of audio, video data,
Determine audio, video data corresponding with the code rate of the audio, video data to be played；The index list of the audio, video data
It is to being obtained after being handled from the audio, video data that content distribution network CDN service device is downloaded.
Transmission unit, it is described for the corresponding audio, video data of code rate of the audio, video data to be played to be sent to
Client.
Optionally, the processing unit is specifically used for:
Periodically first task list is obtained from index server；
Audio, video data corresponding with the first task list is downloaded according to the first task list；
The corresponding audio, video data of the first task list is subjected to transcoding；
According to the ID of the code rate of the audio, video data after transcoding and P2P equipment, the index column of the audio, video data is generated
Table；
Optionally, the processing unit is also used to:
After the index list for generating the audio, video data, the transmission unit is controlled by the audio, video data
Index list is sent to the index server, so that the index server updates the Resources list.
Correspondingly, the present invention provides another device for obtaining audio, video data, comprising:
Receiving unit, for receiving playing audio-video instruction, the playing audio-video instruction includes audio-video to be played
The code rate of data；
Processing unit obtains the first P2P from index server for the code rate according to the audio, video data to be played
List of devices；The first P2P list of devices is code rate of the index server according to the audio, video data to be played
The list of determining the first P2P equipment composition, the first P2P equipment are stored with the code with the audio, video data to be played
The corresponding audio, video data of rate；
Acquiring unit, for being obtained with described wait broadcast from the first P2P equipment according to the first P2P list of devices
The corresponding audio, video data of the code rate for the audio, video data put.
Optionally, the acquiring unit is specifically used for:
Audio, video data downloading request is sent to the first P2P equipment, the audio, video data downloading request includes institute
State the code rate of audio, video data to be played；
Receive the audio, video data corresponding with the code rate of the audio, video data to be played.
Optionally, the processing unit is also used to:
When the first P2P equipment is abnormal, again according to the code rate of the audio, video data to be played, from rope
Draw server and obtain the first P2P list of devices, until control the acquiring unit get it is whole it is described with it is described to
The corresponding audio, video data of the code rate of the audio, video data of broadcasting.
Optionally, the processing unit is also used to:
If having not been obtained from the index server to the first P2P list of devices, the acquiring unit is controlled from CDN
Server obtains audio, video data corresponding with the code rate of the audio, video data to be played.
Correspondingly, the present invention provides another device for obtaining audio, video data, comprising:
Receiving unit sends the first request for receiving client, and first request includes audio-video number to be played
According to code rate, first request is client to be sent after receiving playing audio-video instruction；
Processing unit determines first for the code rate according to the audio, video data to be played from the Resources list
P2P list of devices；Described the Resources list includes the index list for the audio, video data that each P2P equipment is sent；First P2P is set
Standby list includes multiple first P2P equipment, and the first P2P equipment is stored with the code rate with the audio, video data to be played
Corresponding audio, video data；
Transmission unit, for the first P2P list of devices to be sent to the client so that the client according to
The first P2P list of devices obtains corresponding with the code rate of the audio, video data to be played from the first P2P equipment
Audio, video data.
Optionally, the processing unit is also used to:
In the code rate according to the audio, video data to be played, the first P2P equipment is determined from the Resources list
Before list, the request that the receiving unit receives the acquisition first task list that the first P2P equipment is sent is controlled；And according to pre-
If first request of quantity generates the first task list；
It controls the transmission unit and the first task list is sent to the first P2P equipment, so that described first
P2P equipment downloads audio, video data corresponding with the first task list according to the first task list.
Optionally, the processing unit is also used to:
After the first task list is sent to the first P2P equipment by the control transmission unit, control
The index list that the receiving unit receives the audio, video data that the first P2P equipment is sent is made, the audio, video data
Index list the first P2P equipment generates after carrying out transcoding to the corresponding audio, video data of the first task list；
The index list of the audio, video data includes the ID of the first P2P equipment and the code rate of audio, video data；
The index list of the audio, video data sent according to the first P2P equipment updates described the Resources list.
Correspondingly, the embodiment of the invention also provides a kind of calculating equipment, comprising:
Memory, for storing program instruction；
Processor executes above-mentioned acquisition according to the program of acquisition for calling the program instruction stored in the memory
The method of audio, video data.
Correspondingly, the embodiment of the invention also provides a kind of computer-readable non-volatile memory medium, including computer
Readable instruction, when computer is read and executes the computer-readable instruction, so that computer executes above-mentioned acquisition audio-video
The method of data.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic diagram of system architecture provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram for obtaining audio, video data method provided in an embodiment of the present invention；
Fig. 3 is the flow chart provided in an embodiment of the present invention that audio, video data is obtained from client angle；
Fig. 4 is the flow chart provided in an embodiment of the present invention that audio, video data is obtained from the first P2P equipment angle；
Fig. 5 is a kind of structural schematic diagram for obtaining audio, video data device provided in an embodiment of the present invention；
Fig. 6 is another structural schematic diagram for obtaining audio, video data device provided in an embodiment of the present invention；
Fig. 7 is another structural schematic diagram for obtaining audio, video data device provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Fig. 1 schematically illustrates the system tray that the method provided in an embodiment of the present invention for obtaining audio, video data is applicable in
Structure, the system architecture include client 101, edge device 102, CDN server 103 and index server (tracker service
Device) 104.
Wherein, client 101 is the terminal for playing audio-video data, can be mobile phone, apparatus such as computer.
Edge device 102 passes through P2P communication mode to 101 sharing data of client, while can be in edge device 102
The local transcoding for carrying out audio, video data.Edge device 102 can be router, light cat and set-top box etc..
CDN server 103 includes processor 1031, communication interface 1032 and memory 1033.
Wherein, communication interface 1032 with client 101 and edge device 102 for communicating, client 101 and edge device
102 can download audio, video data from CDN server 103.
Processor 1031 is the control centre of CDN server 103, utilizes various interfaces and the entire CDN service of connection
The various pieces of device 103 by running or execute the software program/or module that are stored in memory 1033, and are called and are deposited
The data in memory 1033 are stored up, the various functions and processing data of CDN server 103 are executed.Optionally, processor 1031
It may include one or more processing units.
Memory 1033 can be used for storing software program and module, and processor 1031 is stored in memory by operation
1033 software program and module, thereby executing various function application and data processing.Memory 1033 can mainly include
Storing program area and storage data area, wherein storing program area can application journey needed for storage program area, at least one function
Sequence etc.；Storage data area can store the data etc. created according to business processing.In addition, memory 1033 may include high speed with
Machine access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or its
His volatile solid-state part.
Index server 104 includes processor 1041, communication interface 1042 and memory 1043.
Wherein, communication interface 1042 is with client 101 and edge device 102 for communicating, and client 101 is from index service
Device 104 obtains the list of edge device 102, and edge device 102 obtains audio, video data to be downloaded from index server 104
Task list.
Processor 1041 is the control centre of index server 104, entirely indexes clothes using various interfaces and connection
The various pieces of business device 104, by running or executing the software program/or module that are stored in memory 1043, and calling
The data being stored in memory 1043 execute the various functions and processing data of index server 104.Optionally, processor
1041 may include one or more processing units.
Memory 1043 can be used for storing software program and module, and processor 1041 is stored in memory by operation
1043 software program and module, thereby executing various function application and data processing.Memory 1043 can mainly include
Storing program area and storage data area, wherein storing program area can application journey needed for storage program area, at least one function
Sequence etc.；Storage data area can store the data etc. created according to business processing.In addition, memory 1043 may include high speed with
Machine access memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or its
His volatile solid-state part.
Above-mentioned structure shown in FIG. 1 is only a kind of example, and it is not limited in the embodiment of the present invention.
It should be noted that the edge device and client in the embodiment of the present invention can be the first P2P equipment.In order to just
In description, will be described below using edge device.
Based on foregoing description, Fig. 2 illustratively shows a kind of acquisition audio, video data provided in an embodiment of the present invention
The process of method, the process can be executed by the device of acquisition audio, video data.Below will by client, index server and
The mode of edge device interaction describes the process, as shown in Fig. 2, the process specifically includes:
Step 201, client receives playing audio-video instruction.
Wherein, playing audio-video instruction includes the code rate of audio, video data to be played；Code rate refers to that audio-video document exists
The data traffic used in unit time, more popular understanding are exactly sampling rate, are picture and sound in audio/video coding
Most important part in quality control.
Client determines audio-video number to be played after receiving playing audio-video instruction, according to playing audio-video instruction
Accordingly and the code rate of audio, video data to be played.Client is according to audio, video data to be played and audio-video to be played
The code rate of data requests a small amount of audio, video data to be broadcast for opening to CDN server.
Step 202, client sends the first request to index server.
Client is according to the code rate of audio, video data and audio, video data to be played to be played, to index server
The first request is sent, for obtaining edge device list from index server.
Herein, to be client send after receiving playing audio-video instruction for the first request, first request include to
The code rate of the audio, video data of broadcasting；Edge device list can be understood as index server according to audio, video data to be played
Code rate determine list is formed by edge device, wherein be stored on the edge device and audio, video data to be played
The corresponding audio, video data of code rate, that is to say, that edge device is the storage that index server is determined in the Resources list
There are audio, video data edge device corresponding with the code rate of audio, video data to be played or other equipment, edge device list is
The set of all edge devices.
Step 203, index server is determined from the Resources list according to the code rate of the audio, video data to be played
Edge device list.
Specifically, index server receive client send first request after, according to first request in it is to be played
The code rate of audio, video data determines edge device list from the Resources list, which includes that multiple edges are set
Standby, which is stored with audio, video data corresponding with the code rate of audio, video data to be played.
As a kind of implementation, index server is requested according to the client first of the preset quantity received, is generated
First task list, the first task list are understood that as please seek survival according to audio, video data most popular under current environment
At task list.Index server, can be by the after receiving the request of acquisition first task list of edge device transmission
One task list feeds back to the edge device, so that edge device is according to first task list downloading and first task list pair
The audio, video data answered.Further, index server can receive the index list of the audio, video data of edge device transmission, and
The index list of the audio, video data sent according to edge device updates the Resources list.
Herein, the index list of audio, video data is that edge device carries out the corresponding audio, video data of first task list
It is generated after transcoding, that is, obtained after handling the audio, video data downloaded from CDN server, audio, video data
Index list includes the ID of edge device and the code rate of audio, video data；The Resources list is stored in index server, resource column
Table is the index list for the audio, video data that each edge device is sent to index server, while index server is receiving edge
It will be updated the Resources list when the index list for the audio, video data that equipment is sent.
It changes for an angle, edge device can periodically send to index server and obtain asking for first task list
It asks, so that periodically first task list is obtained from index server, according to the first task list got from CDN service
Device downloads audio, video data corresponding with the first task list, so that most popular under edge device downloading current environment
Audio, video data.Further, edge device utilizes the computing capability of itself, by the corresponding audio, video data of first task list
Transcoding is carried out, i.e. edge device is turned the audio, video data according to the audio, video data of downloading using the computing capability of itself
Code.Optionally, edge device can use CPU (Central Processing Unit, central processing unit) free time to
The corresponding audio, video data of one task list carries out transcoding.Meanwhile edge device also can by after downloading audio, video data and
Audio, video data after transcoding generates index list according to self ID, i.e., edge device is according to the code of the audio, video data after transcoding
The ID of rate and edge device generates the index list of the audio, video data, finally by the index column of the audio, video data of the generation
Table is sent to index server, so that index server updates the Resources list.
For example, edge device is router 1, and ID is " router 1 ", and router 1 sends to index server and obtains
The request of first task list, index server generate first task list according to multiple first requests, and according to router 1
Request the first task list is fed back into the router 1, which represents sound most popular under current environment
A part of video data, as shown in table 1.Router 1 can be downloaded after getting the first task list from CDN server
The corresponding audio, video data of first task list downloads A.mp4, B.mp4 and C.mp4 from CDN server.Router 1
After the download is complete, the audio, video data after the downloading can be subjected to transcoding using the free time of its own processor, specifically
, by " A.mp4 " transcoding it is " A._550.mp4 ", by " B.mp4 " transcoding be " B._900.mp4 ", is by " C.mp4 " transcoding
" C._900.mp4 " and " C._550.mp4 ", and generated and indexed according to the ID of the code rate of audio, video data after transcoding and equipment of itself
List, can be as shown in table 2, and the index list is sent to index server, and index server updates the Resources list.
Table 1
Table 2
| Router id | Initial data | Data after transcoding |
| Router 1 | A.mp4 | A._550.mp4 |
| Router 1 | B.mp4 | B._900.mp4 |
| Router 1 | C.mp4 | C._900.mp4、C._550.mp4 |
Step 204, index server sends edge device list to client.
The edge device list determined is sent to client by index server, so that client is arranged according to edge device
Table obtains audio, video data corresponding with the code rate of audio, video data to be played from edge device.
Step 205, client sends audio, video data downloading request to edge device.
After client receives the edge device list of index server transmission, according to edge device list, set from edge
Audio, video data corresponding with the code rate of audio, video data to be played is obtained for middle.In specific implementation, client can be to side
Edge device in edge list of devices sends audio, video data downloading request, and wherein audio, video data downloading request includes wait broadcast
The code rate for the audio, video data put, it is in edge device that audio, video data corresponding with the code rate of audio, video data to be played is anti-
When client of feeding, client receives the corresponding audio, video data of the code rate with audio, video data to be played.
In addition, when client is had not been obtained from index server to when edge device list, that is, client cannot be from
When getting audio, video data corresponding with the code rate of audio, video data to be played in edge device, client is needed from CDN
Audio, video data corresponding with the code rate of audio, video data to be played is obtained in server.That is, client is gone first
Index server obtains edge device list, if getting, client is obtained according to edge device list to the edge device
Audio and video resources；If obtain less than, can only to CDN server obtain audio and video resources.
Step 206, edge device is according to the code rate of the audio, video data to be played and the index column of audio, video data
Table determines audio, video data corresponding with the code rate of the audio, video data to be played.
Edge device receives the audio, video data that client is sent and downloads request, wherein audio, video data downloads request packet
Include the code rate of audio, video data to be played, edge device is according to the code rate and audio, video data of audio, video data to be played
Index list, determine that corresponding audio, video data is requested in downloading, that is, corresponding with the code rate of audio, video data to be played
Audio, video data.
Step 207, the corresponding audio, video data of the code rate of audio, video data to be played is sent to client by edge device
End.
May include at least one edge device in edge device list in above-described embodiment, client obtain with to
When the corresponding audio, video data of the code rate of the audio, video data of broadcasting, it is possible that some or certain several edge devices occur
It is abnormal, such as edge device delay machine, power-off etc., at this point, client cannot continue to obtain from the edge device being abnormal and
The corresponding audio, video data of the code rate of audio, video data to be played, client need again according to audio, video data to be played
Code rate, edge device list is obtained from index server, until get whole codes with audio, video data to be played
The corresponding audio, video data of rate.
For example, client from index server get edge device list be tri- equipment of a, b, c, client from a,
B, when obtaining required audio, video data in tri- equipment of c, wherein b device powers down causes client that cannot get whole institutes
The audio, video data needed is got at this time at this point, client just needs to obtain edge device list from index server again
Edge device list is a, c, d, and client gets whole required audio, video datas from tri- equipment of a, c, d.
Embodiment in order to preferably explain the present invention will describe the stream of acquisition audio, video data from client angle below
Journey, as shown in figure 3, specific as follows:
Step 301, playing audio-video instruction is received.
Step 302, multicast data is opened from CDN server download part.
Step 303, the request for obtaining edge device list is sent to index server.
Step 304, if get edge device list from index server.If so, turning to step 305, otherwise, turn to
Step 306.
Step 305, audio and video resources are downloaded from edge device.
Step 306, audio and video resources are downloaded from CDN server.
Step 307, whether edge device is abnormal.If so, turning to step 304, otherwise, step 308 is turned to.
Step 308, audio and video resources are completed in downloading.
Correspondingly, the process that the present invention obtains audio, video data is described from edge device angle, it can be as shown in Figure 4.
Step 401, first task list periodically is obtained from index server.
Step 402, if get first task list from index server.If so, turning to step 403, otherwise, turn to
Step 401.
Step 403, the corresponding audio, video data of first task list is obtained from CDN server.
Step 404, audio-video transcoding is carried out, index list is generated.
Step 405, index list is sent to index server.
Since the specific implementation of the present embodiment has described in other embodiments, therefore not to repeat here.
By above embodiment, index server generates popular audio-video number under current environment according to client request
According to task list, edge device downloads popular audio, video data under current environment according to the task list and is stored in local, and
Transcoding is carried out using the computing capability of itself, the index list of audio, video data is generated, the index of the audio, video data of generation
List is sent to index server so that index server receive client first request after, according to client
The first request in the code rate of audio, video data and audio, video data to be played to be played determine edge device list,
And then client obtains corresponding audio, video data from edge device.P2P is in this way made full use of to share and edge device
Calculation processing ability so that by P2P share meet as far as possible client audio, video data downloading request, reduce client from
The bandwidth of CDN server downloading resource is further increased from the received effective byte of P2P network, is reduced and is taken from CDN
The byte of business device downloading, improves P2P amplification ratio, the final pressure for reducing CDN server.
Based on the same inventive concept, Fig. 5 schematically illustrates a kind of acquisition audio-video number provided in an embodiment of the present invention
According to device structure, which can be placed in edge device, be also possible to the edge device.
Receiving unit 501, for receiving the audio, video data downloading request of client transmission, the audio, video data downloading
Request includes the code rate of the audio, video data to be played；
Processing unit 502, for according to the code rate of the audio, video data to be played and the index column of audio, video data
Table determines audio, video data corresponding with the code rate of the audio, video data to be played；The index of the audio, video data
List is to obtaining after handling from the audio, video data that content distribution network CDN service device is downloaded；
Transmission unit 503, for the corresponding audio, video data of code rate of the audio, video data to be played to be sent to
Client.
Optionally, the processing unit 502 is specifically used for:
Periodically first task list is obtained from index server；
Audio, video data corresponding with the first task list is downloaded according to the first task list；
The corresponding audio, video data of the first task list is subjected to transcoding；
The index column of the audio, video data is generated according to the ID of the code rate of the audio, video data after transcoding and P2P equipment
Table.
Optionally, the processing unit 502 is also used to:
After the index list for generating the audio, video data, the transmission unit 503 is controlled by the audio-video number
According to index list be sent to the index server so that the index server updates the Resources list.
Based on the same inventive concept, Fig. 6 schematically illustrates another acquisition audio-video provided in an embodiment of the present invention
The structure of the device of data, the device can be placed in client, be also possible to the client.
Receiving unit 601, for receiving playing audio-video instruction, the playing audio-video instruction includes that sound to be played regards
The code rate of frequency evidence；
Processing unit 602 obtains first from index server for the code rate according to the audio, video data to be played
P2P list of devices；The first P2P list of devices is code of the index server according to the audio, video data to be played
The list for the first P2P equipment composition that rate determines, the first P2P equipment are stored with and the audio, video data to be played
The corresponding audio, video data of code rate；
Acquiring unit 603, for according to the first P2P list of devices, from the first P2P equipment obtain with it is described to
The corresponding audio, video data of the code rate of the audio, video data of broadcasting.
Optionally, the acquiring unit 603 is specifically used for:
Audio, video data downloading request is sent to the first P2P equipment, the audio, video data downloading request includes institute
State the code rate of audio, video data to be played；
Receive the audio, video data corresponding with the code rate of the audio, video data to be played.
Optionally, the processing unit 602 is also used to:
When the first P2P equipment is abnormal, again according to the code rate of the audio, video data to be played, from rope
Draw server and obtain the first P2P list of devices, until control the acquiring unit 603 get it is whole it is described with it is described
The corresponding audio, video data of the code rate of audio, video data to be played.
Optionally, the processing unit 602 is also used to:
If having not been obtained from the index server to the first P2P list of devices, control the acquiring unit 603 from
CDN server obtains audio, video data corresponding with the code rate of the audio, video data to be played.
Based on the same inventive concept, Fig. 7 schematically illustrates another acquisition audio-video provided in an embodiment of the present invention
The structure of the device of data, the device can be placed in index server, can be the index server.
Receiving unit 701 sends the first request for receiving client, and first request includes audio-video to be played
The code rate of data, first request are that client is sent after receiving playing audio-video instruction；
Processing unit 702 determines for the code rate according to the audio, video data to be played from the Resources list
One P2P list of devices；Described the Resources list includes the index list for the audio, video data that each P2P equipment is sent；First P2P
List of devices includes multiple first P2P equipment；The first P2P equipment is stored with the code with the audio, video data to be played
The corresponding audio, video data of rate；
Transmission unit 703, for the first P2P list of devices to be sent to the client, so that the client
According to the first P2P list of devices, the code rate pair with the audio, video data to be played is obtained from the first P2P equipment
The audio, video data answered.
Optionally, the processing unit 702 is also used to:
In the code rate according to the audio, video data to be played, the first P2P equipment is determined from the Resources list
Before list, the request that the receiving unit 701 receives the acquisition first task list that the first P2P equipment is sent is controlled；And root
The first task list is generated according to first request of preset quantity；
It controls the transmission unit 703 and the first task list is sent to the first P2P equipment, so that described
One P2P equipment downloads audio, video data corresponding with the first task list according to the first task list.
Optionally, the processing unit 702 is also used to:
After the first task list is sent to the first P2P equipment by the control transmission unit 703,
Control the index list that the receiving unit 701 receives the audio, video data that the first P2P equipment is sent, the audio-video number
According to index list be the first P2P equipment to the corresponding audio, video data of the first task list carry out transcoding after generate
's；The index list of the audio, video data includes the ID of the first P2P equipment and the code rate of audio, video data；
The index list of the audio, video data sent according to the first P2P equipment updates described the Resources list.
Based on the same inventive concept, the embodiment of the invention also provides a kind of calculating equipment, comprising:
Memory, for storing program instruction；
Processor executes above-mentioned acquisition according to the program of acquisition for calling the program instruction stored in the memory
The method of audio, video data.
Based on the same inventive concept, the embodiment of the invention also provides a kind of computer-readable non-volatile memory medium,
Including computer-readable instruction, when computer is read and executes the computer-readable instruction, so that computer execution is above-mentioned
The method for obtaining audio, video data.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (22)
1. a kind of method for obtaining audio, video data characterized by comprising
It receives the audio, video data that client is sent and downloads request, the audio, video data downloading request includes described to be played
The code rate of audio, video data；
According to the index list of the code rate of the audio, video data to be played and audio, video data, determine with it is described to be played
Audio, video data the corresponding audio, video data of code rate, and be sent to the client；The index column of the audio, video data
Table is to obtaining after handling from the audio, video data that content distribution network CDN service device is downloaded.
2. the method as described in claim 1, which is characterized in that described to be carried out to the audio, video data downloaded from CDN server
Processing obtains the index list of the audio, video data, comprising:
Periodically first task list is obtained from index server；
Audio, video data corresponding with the first task list is downloaded according to the first task list；
The corresponding audio, video data of the first task list is subjected to transcoding；
According to the identity ID of the code rate of the audio, video data after transcoding and Peer-to-Peer Network P2P equipment, the sound view is generated
The index list of frequency evidence.
3. method according to claim 2, which is characterized in that after the index list for generating the audio, video data, also
Include:
The index list of the audio, video data is sent to the index server, so that the index server more new resources
List.
4. a kind of method for obtaining audio, video data characterized by comprising
Playing audio-video instruction is received, the playing audio-video instruction includes the code rate of audio, video data to be played；
According to the code rate of the audio, video data to be played, the first Peer-to-Peer Network P2P list of devices is obtained from index server；
The first P2P list of devices is first that the index server is determined according to the code rate of the audio, video data to be played
The list of P2P equipment composition, the first P2P equipment are stored with sound corresponding with the code rate of the audio, video data to be played
Video data；
According to the first P2P list of devices, the code with the audio, video data to be played is obtained from the first P2P equipment
The corresponding audio, video data of rate.
5. method as claimed in claim 4, which is characterized in that it is described according to the first P2P list of devices, from described first
P2P equipment obtains audio, video data corresponding with the code rate of the audio, video data to be played, comprising:
Send audio, video data downloading request to the first P2P equipment, audio, video data downloading request include it is described to
The code rate of the audio, video data of broadcasting；
Receive the audio, video data corresponding with the code rate of the audio, video data to be played.
6. method as claimed in claim 4, which is characterized in that further include:
When the first P2P equipment is abnormal, again according to the code rate of the audio, video data to be played, taken from index
Business device obtains the first P2P list of devices, until getting the code of whole described and audio, video datas to be played
The corresponding audio, video data of rate.
7. method as claimed in claim 4, which is characterized in that further include:
If having not been obtained from the index server to the first P2P list of devices, obtained from content distribution network CDN service device
Take audio, video data corresponding with the code rate of the audio, video data to be played.
8. a kind of method for obtaining audio, video data characterized by comprising
It receives client transmission first to request, the code rate of first request including audio, video data to be played, described first
Request is that client is sent after receiving playing audio-video instruction；
According to the code rate of the audio, video data to be played, determine that the first Peer-to-Peer Network P2P equipment is arranged from the Resources list
Table；Described the Resources list includes the index list for the audio, video data that each P2P equipment is sent；The first P2P list of devices packet
Multiple first P2P equipment are included, the first P2P equipment is stored with sound corresponding with the code rate of the audio, video data to be played
Video data；
The first P2P list of devices is sent to the client, so that the client is arranged according to the first P2P equipment
Table obtains audio, video data corresponding with the code rate of the audio, video data to be played from the first P2P equipment.
9. method according to claim 8, which is characterized in that in the code according to the audio, video data to be played
Rate, before determining the first P2P list of devices in the Resources list, further includes:
Receive the request of the acquisition first task list of the first P2P equipment transmission；And according to first request of preset quantity
Generate the first task list；
The first task list is sent to the first P2P equipment, so that the first P2P equipment is according to described first
Audio, video data corresponding with the first task list is downloaded in business list.
10. method as claimed in claim 9, which is characterized in that the first task list is sent to described described
After one P2P equipment, further includes:
The index list for the audio, video data that the first P2P equipment is sent is received, the index list of the audio, video data is
The first P2P equipment generates after carrying out transcoding to the first task list corresponding audio, video data；The audio-video
The index list of data includes the identity ID of the first P2P equipment and the code rate of audio, video data；
The index list of the audio, video data sent according to the first P2P equipment updates described the Resources list.
11. a kind of device for obtaining audio, video data characterized by comprising
Receiving unit, for receiving the audio, video data downloading request of client transmission, the audio, video data downloads request packet
Include the code rate of the audio, video data to be played；
Processing unit, for determining according to the code rate of the audio, video data to be played and the index list of audio, video data
Audio, video data corresponding with the code rate of the audio, video data to be played out；The index list of the audio, video data is pair
What the audio, video data downloaded from content distribution network CDN service device obtained after being handled；
Transmission unit, for the corresponding audio, video data of code rate of the audio, video data to be played to be sent to the client
End.
12. device as claimed in claim 11, which is characterized in that the processing unit is used for:
Periodically first task list is obtained from index server；
Audio, video data corresponding with the first task list is downloaded according to the first task list；
The corresponding audio, video data of the first task list is subjected to transcoding；
According to the identity ID of the code rate of the audio, video data after transcoding and Peer-to-Peer Network P2P equipment, the sound view is generated
The index list of frequency evidence.
13. device as claimed in claim 11, which is characterized in that the processing unit is also used to:
After the index list for generating the audio, video data, the transmission unit is controlled by the index of the audio, video data
List is sent to the index server, so that the index server updates the Resources list.
14. a kind of device for obtaining audio, video data characterized by comprising
Receiving unit, for receiving playing audio-video instruction, the playing audio-video instruction includes audio, video data to be played
Code rate；
Processing unit obtains the first peer-to-peer network from index server for the code rate according to the audio, video data to be played
Network P2P list of devices；The first P2P list of devices is the index server according to the audio, video data to be played
The list for the first P2P equipment composition that code rate determines, the first P2P equipment are stored with and the audio, video data to be played
The corresponding audio, video data of code rate；
Acquiring unit, for being obtained from the first P2P equipment and described to be played according to the first P2P list of devices
The corresponding audio, video data of the code rate of audio, video data.
15. device as claimed in claim 14, which is characterized in that the acquiring unit is used for:
Send audio, video data downloading request to the first P2P equipment, audio, video data downloading request include it is described to
The code rate of the audio, video data of broadcasting；
Receive the audio, video data corresponding with the code rate of the audio, video data to be played.
16. device as claimed in claim 14, which is characterized in that the processing unit is also used to:
When the first P2P equipment is abnormal, again according to the code rate of the audio, video data to be played, taken from index
Device of being engaged in obtains the first P2P list of devices, until control the acquiring unit get it is whole it is described with it is described to be played
Audio, video data the corresponding audio, video data of code rate.
17. device as claimed in claim 14, which is characterized in that the processing unit is also used to:
If having not been obtained from the index server to the first P2P list of devices, the acquiring unit is controlled from content point
Hairnet network CDN server obtains audio, video data corresponding with the code rate of the audio, video data to be played.
18. a kind of device for obtaining audio, video data characterized by comprising
Receiving unit sends the first request for receiving client, and first request includes audio, video data to be played
Code rate, first request are that client is sent after receiving playing audio-video instruction；
Processing unit determines the first equity for the code rate according to the audio, video data to be played from the Resources list
Network P 2 P list of devices；Described the Resources list includes the index list for the audio, video data that each P2P equipment is sent；Described first
P2P list of devices includes multiple first P2P equipment, and the first P2P equipment is stored with and the audio, video data to be played
The corresponding audio, video data of code rate；
Transmission unit, for the first P2P list of devices to be sent to the client, so that the client is according to
First P2P list of devices obtains sound view corresponding with the code rate of the audio, video data to be played from the first P2P equipment
Frequency evidence.
19. device as claimed in claim 18, which is characterized in that the processing unit is also used to:
In the code rate according to the audio, video data to be played, the first P2P list of devices is determined from the Resources list
Before, the request that the receiving unit receives the acquisition first task list that the first P2P equipment is sent is controlled；And according to present count
First request of amount generates the first task list；
It controls the transmission unit and the first task list is sent to the first P2P equipment, so that the first P2P is set
It is standby that audio, video data corresponding with the first task list is downloaded according to the first task list.
20. device as claimed in claim 19, which is characterized in that the processing unit is also used to:
After the first task list is sent to the first P2P equipment by the control transmission unit, institute is controlled
State the index list that receiving unit receives the audio, video data that the first P2P equipment is sent, the index of the audio, video data
List the first P2P equipment generates after carrying out transcoding to the corresponding audio, video data of the first task list；It is described
The index list of audio, video data includes the identity ID of the first P2P equipment and the code rate of audio, video data；
The index list of the audio, video data sent according to the first P2P equipment updates described the Resources list.
21. a kind of calculating equipment characterized by comprising
Memory, for storing program instruction；
Processor requires 1 to 10 according to the program execution benefit of acquisition for calling the program instruction stored in the memory
Described in any item methods.
22. a kind of computer-readable non-volatile memory medium, which is characterized in that including computer-readable instruction, work as computer
When reading and executing the computer-readable instruction, so that computer executes method as described in any one of claim 1 to 10.
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