CN106850277A - A kind of direct broadcast server changing method, system and client - Google Patents
A kind of direct broadcast server changing method, system and client Download PDFInfo
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- CN106850277A CN106850277A CN201710028120.6A CN201710028120A CN106850277A CN 106850277 A CN106850277 A CN 106850277A CN 201710028120 A CN201710028120 A CN 201710028120A CN 106850277 A CN106850277 A CN 106850277A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
- H04L43/55—Testing of service level quality, e.g. simulating service usage
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Environmental & Geological Engineering (AREA)
- Quality & Reliability (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention discloses a kind of direct broadcast server changing method, system and client, belong to net cast technical field；Its method includes：Obtain current network packet loss, current network time delay and the current network shake of current connection server P；Based on the shake of current network packet loss, current network time delay and current network, the current network quality Q of current connection server P is calculatedP；Judge current network quality QPWhether predetermined value P is more than；If current network quality QPMore than predetermined value P, then control client switches to the destination server in alternate servers set, the technical scheme that the present invention is provided, can cause that client dynamic realtime perceives the network quality of each direct broadcast server, and switching at runtime can be carried out according to the network quality of each direct broadcast server, so as to ensure the network quality of the direct broadcast server of client connection, and seamless switching can be realized when direct broadcast server is switched, it is practical, it is applied widely.
Description
Technical field
The present invention relates to net cast technical field, more particularly to a kind of direct broadcast server changing method, system and client
End.
Background technology
As the arriving in 4G epoch, internet audio frequency and video direct broadcast service are also more and more fiery, substantial amounts of user will soon support
Full direct broadcast server.In order to meet hot business demand, present state-of-the-art direct broadcast server uses many machines mostly
Distributed architecture, will go to solve the problems, such as that separate unit service is had a full house, but solving basic connection in user distribution to different machines
After topic of corresponding, the follow-up stability and media that are the live quality for lifting audio frequency and video, mainly lift direct broadcast server pursued
The fluency of packet.
Realize it is of the invention during, inventor find at least there are the following problems：
During live, network environment is dynamic change, and during T0 moment, A clients connection S1 direct broadcast servers can
Can be optimal selection, but when having arrived T1 moment, the network quality of S1 direct broadcast servers is deteriorated because pressure is big, or because of
It is under attack directly to service, then A clients connection S2 direct broadcast servers are only best selection.But, existing skill
In art, client can not dynamic sensing each direct broadcast server network quality, and any platform direct broadcast server cannot be perceived
Network quality it is optimal, client can not in real time be switched according to the network quality of current each direct broadcast server, and existing
Having the client in technology can not accomplish seamless switching according to the different server of artificial selection switching, cause user to listen to
Feel to interrupt in journey.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of direct broadcast server changing method, system and client so that client
End can dynamic realtime perceive the network quality of each direct broadcast server, and can be according to the network matter of each direct broadcast server
Amount carries out switching at runtime, so as to ensure the network quality of the direct broadcast server of client connection, and can switch live clothes
Seamless switching is realized during business device, it is practical, it is applied widely.
According to an aspect of the present invention, The embodiment provides a kind of direct broadcast server changing method, application
In client, including：
Obtain current network packet loss, current network time delay and the current network shake of current connection server P；
Based on the shake of the current network packet loss, current network time delay and current network, current Connection Service is calculated
The current network quality Q of device PP；
Judge the current network quality QPWhether predetermined value P is more than；
If the current network quality QPMore than predetermined value P, then in controlling client to switch to alternate servers set
Destination server, wherein, alternate servers set includes at least one alternate servers.
Preferably, when the client be live client to send live data bag to current connection server P when；
The step of current network packet loss for obtaining current connection server P, current network are shaken includes：
Based on RTCP Real-time Transport Control Protocol, sender report SR is sent to current connection server P；
Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current connection
The quantity forwarded of the live data bag of server P, each live data bag at least includes：With its own unique corresponding sequence number
And packet sends time, wherein the Serial No. continuous label of live data bag；
Preferably, the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned is received；
Wherein, receiving terminal report RR at least includes：Transmission time, the current net of sender report SR corresponding with its own
Network packet loss, current network shake；
Preferably, wherein, current network packet loss, current connection server P has been sent based on live client
The quantity forwarded of live data bag, the sequence number of each live data bag for having sent and current connection server P itself are received
Each live data bag sequence number determine packet loss quantity after, be calculated；
Preferably, current network shake, is that current connection server P is based on the continuous two live data bags of sequence number
Packet sends the difference of time, and receives the difference of the packet reception time of the continuous two live data bags of the sequence number
Value, is calculated；
Preferably, the step of acquisition current network time delay includes：
The transmission time based on sender report SR, and receive receiving terminal report RR corresponding with sender report SR
Reception the time difference, calculate obtain current network time delay.
Preferably, when client be when watching client with receive live data bag that current connection server P forwards and
During sender report SR；
The step of current network packet loss of the acquisition current connection server P, includes：
The live client included based on sender report SR has been sent to the live data bag of current connection server P
Quantity forwarded, and each live data bag for having sent sequence number, and viewing each live data bag for having received of client
Sequence number, determines packet loss quantity；
Based on packet loss quantity and the quantity forwarded, calculate and obtain current network packet loss；
The step of current network for obtaining current connection server P is shaken includes：
Packet based on the continuous two live data bags of sequence number sends the difference of time, and viewing client is received
To the difference of the reception time of the continuous two live data bags of the sequence number, calculate and obtain current network shake；
Preferably, the step of current network time delay of the acquisition current connection server P includes：
Packet based on recently received live data bag sends the time, and the live data bag currently just played
Packet sends the difference of time, calculates and obtains current network time delay；
Preferably, wherein, unicast packets and sender report SR are sent to current connection server P by live client
's；Sender report SR at least includes：The transmission time of sender report SR, live client have been sent to current Connection Service
The quantity forwarded of the live data bag of device P, each live data bag at least includes：With its own unique corresponding sequence number and number
According to bag transmission time, wherein the Serial No. continuous label of live data bag.
Preferably, it is described based on the shake of the current network packet loss, current network time delay and current network, calculate and work as
The current network quality Q of preceding connection server PPThe step of include：
The current network quality Q of current connection server P is calculated based on the first preset formulaP；
Preferably, wherein, first preset formula is：
QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPIt is the current net
Network time delay；A, b, c are respectively default weight coefficient.
Preferably, before the step of the destination server during the control client switches to alternate servers set,
Also include：
The offered load and net of each alternate servers in the destination server in alternate servers set are obtained respectively
Network time delay；
Offered load, network delay and the second preset formula based on each alternate servers, calculate each alternative respectively
The alternative network quality Q of serverb；
Preferably, wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default
Weight coefficient.
Preferably, the step of control client switches to the destination server in alternate servers set includes：
Based on every alternative network quality Q of alternate serversb, by the alternative network in alternate servers set with minimum
Quality QbCorresponding alternate servers are used as destination server；
Control client switches to the destination server.
Preferably, the step of control client switches to the destination server includes：
Control client sends connection request to the destination server；
After with the destination server successful connection, timing is carried out by initial time of the time of successful connection, formed
Connection duration；
Judge whether the connection duration reaches preset duration；
If reaching preset duration, client disconnects the connection with the current connection server P；
Otherwise, then the client connects the current connection server P and the destination server simultaneously.
According to another aspect of the invention, The embodiment provides a kind of direct broadcast server switching system, application
In client, including：
Acquisition module, for obtaining the current network packet loss of current connection server P, current network time delay and current
Network jitter；
Computing module, for based on the shake of the current network packet loss, current network time delay and current network, calculating
The current network quality Q of current connection server PP；
Control module, for judging the current network quality QPWhether predetermined value P is more than；With,
For determining the current network quality QPDuring more than predetermined value P, control client switches to alternative services
Destination server in device set, wherein, alternate servers set includes at least one alternate servers.
Preferably, when the client be live client to send live data bag to current connection server P when；
The acquisition module, is additionally operable to, based on RTCP Real-time Transport Control Protocol, transmitting terminal report be sent to current connection server P
Accuse SR；Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current connection clothes
The quantity forwarded of the live data bag of business device P, each live data bag at least includes：With its own unique corresponding sequence number and
Packet sends time, wherein the Serial No. continuous label of live data bag；With,
For receiving the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned；
Preferably, wherein, receiving terminal report RR at least includes：During the transmission of sender report SR corresponding with its own
Between, current network packet loss, current network shake；
Preferably, wherein, current network packet loss, current connection server P has been sent based on live client
The quantity forwarded of live data bag, the sequence number of each live data bag for having sent and current connection server P itself are received
Each live data bag sequence number determine packet loss quantity after, be calculated；
Preferably, current network shake, is that current connection server P is based on the continuous two live data bags of sequence number
Packet sends the difference of time, and receives the difference of the packet reception time of the continuous two live data bags of the sequence number
Value, is calculated；
Preferably, wherein, the computing module is additionally operable to the transmission time based on sender report SR, and receive with
The difference of the reception time of the corresponding receiving terminal report RRs of sender report SR, calculates and obtains current network time delay.
Preferably, when client be when watching client with receive live data bag that current connection server P forwards and
During sender report SR；
The computing module, the live client for being additionally operable to be included based on sender report SR has been sent to current connection
The quantity forwarded of the live data bag of server P, and each live data bag for having sent sequence number, and viewing client connect
The sequence number of each live data bag received, determines packet loss quantity；With,
For based on packet loss quantity and the quantity forwarded, calculating and obtaining current network packet loss；With,
The difference of time, and viewing client are sent for the packet based on the continuous two live data bags of sequence number
The difference of the reception time of the continuous two live data bags of the sequence number is received, is calculated and is obtained current network shake；With,
Packet based on recently received live data bag sends the time, and the live data bag currently just played
Packet sends the difference of time, calculates and obtains approximate current network time delay；
Preferably, wherein, unicast packets and sender report SR are sent to current connection server P by live client
's；Sender report SR at least includes：The transmission time of sender report SR, live client have been sent to current Connection Service
The quantity forwarded of the live data bag of device P, each live data bag at least includes：With its own unique corresponding sequence number and number
According to bag transmission time, wherein the Serial No. continuous label of live data bag.
Preferably, the computing module, the current network for calculating current connection server P based on the first preset formula
Quality QP；
Preferably, wherein, first preset formula is：
QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPIt is the current net
Network time delay；A, b, c are respectively default weight coefficient.
Preferably, the acquisition module, is additionally operable to controlling client to switch to alternate servers collection described in control module
Before destination server in conjunction, each alternate servers in the destination server in alternate servers set are obtained respectively
Offered load and network delay；
The computing module, is additionally operable to the offered load based on each alternate servers, network delay and the second default public affairs
Formula, calculates the alternative network quality Q of each alternate servers respectivelyb；
Preferably, wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default
Weight coefficient.
Preferably, the control module, is additionally operable to based on every alternative network quality Q of alternate serversb, will alternatively take
With minimum alternative network quality Q in business device setbCorresponding alternate servers are used as destination server；With,
For controlling client to switch to the destination server.
Preferably, the system also includes：Timing module；
Wherein, the control module, is additionally operable to control client and sends connection request to the destination server；
The timing module, for after client with the destination server successful connection, with the time of successful connection
For initial time carries out timing, connection duration is formed；
The control module, is additionally operable to judge whether the connection duration reaches preset duration；
If reaching preset duration, control client disconnects the connection with the current connection server P；
Otherwise, then the client is controlled while connecting the current connection server P and the destination server.
In order to above-mentioned technical proposal is better achieved, embodiments of the invention additionally provide a kind of client, the client
End is provided with including above-described direct broadcast server switching system.
Direct broadcast server changing method provided in an embodiment of the present invention, system and client, enable to the client can
Dynamic realtime perceives the network quality of each direct broadcast server, and can be carried out according to the network quality of each direct broadcast server
Switching at runtime, so as to ensure that the network quality of the direct broadcast server of client connection, and can be in switching direct broadcast server
Shi Shixian seamless switchings, it is practical, it is applied widely.
Brief description of the drawings
Fig. 1 is the flow chart of the direct broadcast server changing method that first embodiment of the invention is provided；
Fig. 2 is the modular structure schematic diagram of the direct broadcast server switching system that second embodiment of the invention is provided.
Description of reference numerals：1- acquisition modules；2- computing modules；3- control modules；4- timing modules.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
Fig. 1 is referred to, Fig. 1 is the flow chart of the direct broadcast server changing method that first embodiment of the invention is provided.
As shown in figure 1, The embodiment provides a kind of direct broadcast server changing method, being applied to client, wrap
Include：
Obtain current network packet loss, current network time delay and the current network shake of current connection server P；
Based on the shake of the current network packet loss, current network time delay and current network, current Connection Service is calculated
The current network quality Q of device PP；
Judge the current network quality QPWhether predetermined value P is more than；
If the current network quality QPMore than predetermined value P, then in controlling client to switch to alternate servers set
Destination server, wherein, alternate servers set includes at least one alternate servers.
, wherein it is desired to explanation, obtain the current network packet loss of current connection server P, current network time delay with
And the mode of current network shake is to obtain or obtain at predetermined time intervals in real time, by the clothes for calculating client currently connection
The network quality of business device, it can be determined that whether the network quality for going out current connection server P meets predetermined value, namely client can
With dynamic sensing its own connect server network quality, and current connection server P network quality be unsatisfactory for it is pre-
During definite value (namely the network quality of current connection server P is poor), the preferable server of network quality is switched to, so as to ensure
The server of client connection can have preferably network quality.
When being in different conditions due to same client, current network packet loss that it obtains current connection server P, when
There is certain difference in preceding network delay and the method for current network shake, in other words, client has two kinds：One kind is straight
Client is broadcast, one kind is viewing client, and live client is to produce one end of live data bag, namely main broadcaster end or live
End, equivalent to data source；Viewing client is to play one end of live data bag, also is understood as viewer end or receiving terminal or broadcasts
Put end.
When the client be live client to send live data bag to current connection server P when；Also it is even objective
When family end is the data source of live data bag,
The step of current network packet loss for obtaining current connection server P, current network are shaken includes：
Based on RTCP Real-time Transport Control Protocol, sender report SR is sent to current connection server P；
Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current connection
The quantity forwarded of the live data bag of server P, each live data bag at least includes：With its own unique corresponding sequence number
And packet sends time, wherein the Serial No. continuous label of live data bag；
Receive the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned；
Wherein, receiving terminal report RR at least includes：Transmission time, the current net of sender report SR corresponding with its own
Network packet loss, current network shake；
Wherein, current network packet loss is current connection server P in the live data sent based on live client
It is each live that the quantity forwarded of bag, the sequence number of each live data bag for having sent and current connection server P itself are received
After the sequence number of packet determines packet loss quantity, it is calculated；
, wherein it is desired to explanation, the quantity forwarded of the live data bag sent according to live client and has respectively sent out
The sequence number of each live data bag that the sequence number of the live data bag for sending and current connection server P itself are received can be true
The live data bag of fixed which sequence number is lost in transmission process, and lost several live data bags, because sequence number
It is continuous label, so which sequence number is interrupted to be easy to be searched identify.
Current network is shaken, and is the packet that current connection server P is based on the continuous two live data bags of sequence number
The difference of transmission time, and receive the difference of the packet reception time of the continuous two live data bags of the sequence number, meter
Obtain；That is, live client have sent two continuous live data bag M1 and M2 of sequence number, its live data bag M1
Packet to send the time be T1, it is that the time interval that T2, M1 and M2 send is that the packet of live data bag M2 sends the time
T2-T1；The time respectively T3 and T4 that so M1 and M2 is received in current connection server P, then receive M1's and M2
Time interval is T4-T3, then current network shake is：(T4-T3)-(T2-T1).
The step of acquisition current network time delay, includes：
The transmission time based on sender report SR, and receive receiving terminal report RR corresponding with sender report SR
Reception the time difference, calculate obtain current network time delay.
3. method according to claim 1, it is characterised in that current to receive when client is for viewing client
When the live data bag and sender report SR of connection server P forwardings；
The step of current network packet loss of the acquisition current connection server P, includes：
The live client included based on sender report SR has been sent to the live data bag of current connection server P
Quantity forwarded, and each live data bag for having sent sequence number, and viewing each live data bag for having received of client
Sequence number, determines packet loss quantity；
Based on packet loss quantity and the quantity forwarded, calculate and obtain current network packet loss；
The step of current network for obtaining current connection server P is shaken includes：
Packet based on the continuous two live data bags of sequence number sends the difference of time, and viewing client is received
To the difference of the reception time of the continuous two live data bags of the sequence number, calculate and obtain current network shake；
The step of current network time delay of the acquisition current connection server P, includes：
Packet based on recently received live data bag sends the time, and the live data bag currently just played
Packet sends the difference of time, calculates and obtains current network time delay；
Wherein, unicast packets and sender report SR are sent to current connection server P by live client；Send
End report SR at least includes：The transmission time of sender report SR, live client have sent straight to current connection server P
The quantity forwarded of unicast packets, each live data bag at least includes：Sent out with its own unique corresponding sequence number and packet
Send time, wherein the Serial No. continuous label of live data bag.
It is described to be shaken based on the current network packet loss, current network time delay and current network, calculate current connection
The current network quality Q of server PPThe step of include：
The current network quality Q of current connection server P is calculated based on the first preset formulaP；
Wherein, first preset formula is：
QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPIt is the current net
Network time delay；A, b, c are respectively default weight coefficient.
Before the step of the destination server during the control client switches to alternate servers set, also include：
The offered load and net of each alternate servers in the destination server in alternate servers set are obtained respectively
Network time delay；, wherein it is desired to illustrate, each alternate servers in destination server in acquisition alternate servers set
The method of network delay is, by RTCP Real-time Transport Control Protocol (RTCP), to send sender report SR's to alternate servers respectively
What mode was realized, wherein, the sender report SR sent to alternate servers includes the transmission time of sender report SR,
After alternate servers receive sender report SR, a corresponding receiving terminal report RR can be returned to, be wrapped in receiving terminal report RR
The transmission time of corresponding sender report SR is contained, the transmission time of the sender report SR in receiving terminal report RR is
In order to client is after receiving terminal report RR is received, can be matched for its corresponding receiving terminal report for each transmitting terminal bag SR
RR is accused, because same client is at same time point, a sender report SR can only be sent, therefore, each sender report
It is unique during the transmission time of SR, so, alternate servers are receiving a certain sender report SR and are starting to return with this certain
During the corresponding receiving terminal report RRs of one sender report SR, the transmission time of a certain sender report SR can be put into receiving terminal
In report RR, to cause when client receives multiple receiving terminal report RRs, can be based on a certain sender report SR's
The transmission time matches quickly confirms which receiving terminal report RR is only receiving terminal report corresponding with a certain sender report SR
Accuse RR.
Client can record the receiving terminal report RR when receiving terminal report RR corresponding with sender report SR is received
The reception time, network delay is the transmission time of sender report SR and receiving terminal report corresponding with sender report SR
The time difference of the reception time of RR is accused, it is also desirable to explanation, because reception time and transmission time are all with client
The time standard reference of this one end, so the accuracy of network delay calculating can be improved.
The method of offered load for obtaining each alternate servers in the destination server in alternate servers set is：
Based on RTCP Real-time Transport Control Protocol (RTCP), sent for obtaining the specific of offered load to each alternate servers
Using bag APP, offered load is returned to client by alternate servers according to the application-specific bag APP for receiving.
Offered load, network delay and the second preset formula based on each alternate servers, calculate each alternative respectively
The alternative network quality Q of serverb；
Wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default
Weight coefficient.
, wherein it is desired to explanation, when server switching is carried out, can take into account the networking matter of each alternate servers
Amount, i.e. network delay and offered load, it is contemplated that offered load, can avoid multiple client while being switched to a certain
On alternate servers, and a certain unexpected network quality of alternate servers is caused to slump, so as to can not effectively realize that server is cut
Change.
The step of control client switches to the destination server in alternate servers set includes：
Based on every alternative network quality Q of alternate serversb, by the alternative network in alternate servers set with minimum
Quality QbCorresponding alternate servers are used as destination server；
Control client switches to the destination server.
The step of control client switches to the destination server includes：
Control client sends connection request to the destination server；
After with the destination server successful connection, timing is carried out by initial time of the time of successful connection, formed
Connection duration；
Judge whether the connection duration reaches preset duration；
If reaching preset duration, client disconnects the connection with the current connection server P；
Otherwise, then the client connects the current connection server P and the destination server simultaneously.
Fig. 2 is refer to, Fig. 2 is that a kind of modular structure of direct broadcast server switching system provided in an embodiment of the present invention is illustrated
Figure；
As shown in Fig. 2 The embodiment provides a kind of direct broadcast server switching system, being applied to client, wrap
Include：
Acquisition module 1, for obtaining the current network packet loss of current connection server P, current network time delay and working as
Preceding network jitter；
Computing module 2, for based on the shake of the current network packet loss, current network time delay and current network, meter
Calculate the current network quality Q of current connection server PP；
Control module 3, for judging the current network quality QPWhether predetermined value P is more than；With,
For determining the current network quality QPDuring more than predetermined value P, control client switches to alternative services
Destination server in device set, wherein, alternate servers set includes at least one alternate servers.
When the client be live client to send live data bag to current connection server P when；
The acquisition module 1, is additionally operable to, based on RTCP Real-time Transport Control Protocol, transmitting terminal be sent to current connection server P
Report SR；Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current connection
The quantity forwarded of the live data bag of server P, each live data bag at least includes：With its own unique corresponding sequence number
And packet sends time, wherein the Serial No. continuous label of live data bag；With,
For receiving the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned；
Wherein, receiving terminal report RR at least includes：Transmission time, the current net of sender report SR corresponding with its own
Network packet loss, current network shake；
Wherein, current network packet loss is current connection server P in the live data sent based on live client
It is each live that the quantity forwarded of bag, the sequence number of each live data bag for having sent and current connection server P itself are received
After the sequence number of packet determines packet loss quantity, it is calculated；
Current network is shaken, and is the packet that current connection server P is based on the continuous two live data bags of sequence number
The difference of transmission time, and receive the difference of the packet reception time of the continuous two live data bags of the sequence number, meter
Obtain；
Wherein, the computing module 2, is additionally operable to the transmission time based on sender report SR, and receive and the transmission
The difference of the reception time of the corresponding receiving terminal report RRs of end report SR, calculates and obtains current network time delay.
When client is to receive live data bag and transmitting terminal report that current connection server P is forwarded when watching client
When accusing SR；
The computing module 2, the live client for being additionally operable to be included based on sender report SR has been sent to currently connecting
Connect the quantity forwarded of the live data bag of server P, and each live data bag for having sent sequence number, and viewing client
The sequence number of each live data bag for receiving, determines packet loss quantity；With,
For based on packet loss quantity and the quantity forwarded, calculating and obtaining current network packet loss；With,
The difference of time, and viewing client are sent for the packet based on the continuous two live data bags of sequence number
The difference of the reception time of the continuous two live data bags of the sequence number is received, is calculated and is obtained current network shake；With,
Packet based on recently received live data bag sends the time, and the live data bag currently just played
Packet sends the difference of time, calculates and obtains current network time delay；
Wherein, unicast packets and sender report SR are sent to current connection server P by live client；Send
End report SR at least includes：The transmission time of sender report SR, live client have sent straight to current connection server P
The quantity forwarded of unicast packets, each live data bag at least includes：Sent out with its own unique corresponding sequence number and packet
Send time, wherein the Serial No. continuous label of live data bag.
The computing module 2, the current network quality for calculating current connection server P based on the first preset formula
QP；
Wherein, first preset formula is：
QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPIt is the current net
Network time delay；A, b, c are respectively default weight coefficient.
The acquisition module 1, is additionally operable in controlling client to switch to alternate servers set described in control module 3
Before destination server, the network that each alternate servers in the destination server in alternate servers set are obtained respectively is born
Carry and network delay；
The computing module 2, is additionally operable to the offered load based on each alternate servers, network delay and the second default public affairs
Formula, calculates the alternative network quality Q of each alternate servers respectivelyb；
Wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default
Weight coefficient.
The control module 3, is additionally operable to based on every alternative network quality Q of alternate serversb, by alternate servers collection
With minimum alternative network quality Q in conjunctionbCorresponding alternate servers are used as destination server；With,
For controlling client to switch to the destination server.
The system also includes：Timing module 4；
Wherein, the control module 3, is additionally operable to control client and sends connection request to the destination server；
The timing module 4, for after client with the destination server successful connection, with the time of successful connection
For initial time carries out timing, connection duration is formed；
The control module 3, is additionally operable to judge whether the connection duration reaches preset duration；
If reaching preset duration, control client disconnects the connection with the current connection server P；
Otherwise, then the client is controlled while connecting the current connection server P and the destination server.
Embodiments of the invention additionally provide a kind of client, and the client is provided with including above-described live clothes
Business device switching system.
Direct broadcast server changing method provided in an embodiment of the present invention, system and client, enable to the client can
Dynamic realtime perceives the network quality of each direct broadcast server, and can be carried out according to the network quality of each direct broadcast server
Switching at runtime, so as to ensure that the network quality of the direct broadcast server of client connection, and can be in switching direct broadcast server
Shi Shixian seamless switchings, it is practical, it is applied widely.
It should be appreciated that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent, improvement etc., should be included within the scope of the present invention.Additionally, appended claims purport of the present invention
In the whole changes covered in the equivalents for falling into scope and border or this scope and border and repair
Change example.
Claims (15)
1. a kind of direct broadcast server changing method, is applied to client, it is characterised in that including：
Obtain current network packet loss, current network time delay and the current network shake of current connection server P；
Based on the shake of the current network packet loss, current network time delay and current network, calculate current connection server P's
Current network quality QP；
Judge the current network quality QPWhether predetermined value P is more than；
If the current network quality QPMore than predetermined value P, then client is controlled to switch to the clothes of the target in alternate servers set
Business device, wherein, alternate servers set includes at least one alternate servers.
2. method according to claim 1, it is characterised in that when the client is live client to send live number
During according to bag to current connection server P；
The step of current network packet loss for obtaining current connection server P, current network are shaken includes：
Based on RTCP Real-time Transport Control Protocol, sender report SR is sent to current connection server P；
Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current Connection Service
The quantity forwarded of the live data bag of device P, each live data bag at least includes：With its own unique corresponding sequence number and number
According to bag transmission time, wherein the Serial No. continuous label of live data bag；
Receive the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned；
Wherein, receiving terminal report RR at least includes：The transmission time of sender report SR corresponding with its own, current network are lost
Bag rate, current network shake；
Wherein, current network packet loss is current connection server P in the live data bag sent based on live client
Each live data that quantity forwarded, the sequence number of each live data bag for having sent and current connection server P itself are received
After the sequence number of bag determines packet loss quantity, it is calculated；
Current network is shaken, and is the packet transmission that current connection server P is based on the continuous two live data bags of sequence number
The difference of time, and the difference of the packet reception time of the continuous two live data bags of the sequence number is received, calculate
Arrive；
The step of acquisition current network time delay, includes：
Transmission time based on sender report SR, and receive and connect with the sender report corresponding receiving terminal report RRs of SR
Difference between the time receiving, calculates and obtains current network time delay.
3. method according to claim 1, it is characterised in that when client is for viewing client receiving current connection
When the live data bag and sender report SR of server P forwardings；
The step of current network packet loss of the acquisition current connection server P, includes：
The live client included based on sender report SR has sent the hair of the live data bag to current connection server P
Send quantity, and each live data bag for having sent sequence number, and the sequence of each live data bag that viewing client has been received
Number, determine packet loss quantity；
Based on packet loss quantity and the quantity forwarded, calculate and obtain current network packet loss；
The step of current network for obtaining current connection server P is shaken includes：
Packet based on the continuous two live data bags of sequence number sends the difference of time, and viewing client receives this
The difference of the reception time of the continuous two live data bags of sequence number, calculates and obtains current network shake；
The step of current network time delay of the acquisition current connection server P, includes：
Packet based on recently received live data bag sends time, and the currently data of the positive live data bag played
The difference of bag transmission time, calculates and obtains current network time delay；
Wherein, unicast packets and sender report SR are sent to current connection server P by live client；Transmitting terminal report
Accusing SR at least includes：The transmission time of sender report SR, live client have been sent to the live number of current connection server P
According to the quantity forwarded of bag, each live data bag at least includes：When being sent with its own unique corresponding sequence number and packet
Between, the wherein Serial No. continuous label of live data bag.
4. the method according to any one of claims 1 to 3, it is characterised in that
It is described to be shaken based on the current network packet loss, current network time delay and current network, calculate current Connection Service
The current network quality Q of device PPThe step of include：
The current network quality Q of current connection server P is calculated based on the first preset formulaP；
Wherein, first preset formula is：
QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPFor the current network is prolonged
When；A, b, c are respectively default weight coefficient.
5. method according to claim 4, it is characterised in that switch to alternate servers set in the control client
In destination server the step of before, also include：
The offered load and network for obtaining each alternate servers in the destination server in alternate servers set respectively prolong
When；
Offered load, network delay and the second preset formula based on each alternate servers, calculate each alternative services respectively
The alternative network quality Q of deviceb；
Wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default weighting
Coefficient.
6. method according to claim 4, it is characterised in that the control client is switched in alternate servers set
Destination server the step of include：
Based on every alternative network quality Q of alternate serversb, by the alternative network quality in alternate servers set with minimum
QbCorresponding alternate servers are used as destination server；
Control client switches to the destination server.
7. method according to claim 6, it is characterised in that the control client switches to the destination server
Step includes：
Control client sends connection request to the destination server；
After with the destination server successful connection, timing is carried out by initial time of the time of successful connection, form connection
Duration；
Judge whether the connection duration reaches preset duration；
If reaching preset duration, client disconnects the connection with the current connection server P；
Otherwise, then the client connects the current connection server P and the destination server simultaneously.
8. a kind of direct broadcast server switching system, is applied to client, it is characterised in that including：
Acquisition module, current network packet loss, current network time delay and current network for obtaining current connection server P
Shake；
Computing module, for based on the shake of the current network packet loss, current network time delay and current network, calculating current
The current network quality Q of connection server PP；
Control module, for judging the current network quality QPWhether predetermined value P is more than；With,
For determining the current network quality QPDuring more than predetermined value P, control client switches to alternate servers set
In destination server, wherein, alternate servers set include at least one alternate servers.
9. system according to claim 8, it is characterised in that when the client is live client to send live number
During according to bag to current connection server P；
The acquisition module, is additionally operable to, based on RTCP Real-time Transport Control Protocol, sender report be sent to current connection server P
SR；Wherein, the sender report SR at least includes：The transmission time of sender report SR, send to current Connection Service
The quantity forwarded of the live data bag of device P, each live data bag at least includes：With its own unique corresponding sequence number and number
According to bag transmission time, wherein the Serial No. continuous label of live data bag；With,
For receiving the receiving terminal report RR corresponding with the sender report SR that current connection server P is returned；
Wherein, receiving terminal report RR at least includes：The transmission time of sender report SR corresponding with its own, current network are lost
Bag rate, current network shake；
Wherein, current network packet loss is current connection server P in the live data bag sent based on live client
Each live data that quantity forwarded, the sequence number of each live data bag for having sent and current connection server P itself are received
After the sequence number of bag determines packet loss quantity, it is calculated；
Current network is shaken, and is the packet transmission that current connection server P is based on the continuous two live data bags of sequence number
The difference of time, and the difference of the packet reception time of the continuous two live data bags of the sequence number is received, calculate
Arrive；
Wherein, the computing module, is additionally operable to the transmission time based on sender report SR, and receive and the sender report
The difference of the reception time of the corresponding receiving terminal report RRs of SR, calculates and obtains current network time delay.
10. system according to claim 8, it is characterised in that currently connected with receiving when client is for viewing client
When connecing the live data bag and sender report SR of server P forwardings；
The computing module, the live client for being additionally operable to be included based on sender report SR has been sent to current Connection Service
The quantity forwarded of the live data bag of device P, and each live data bag for having sent sequence number, and viewing client received
The sequence number of each live data bag, determines packet loss quantity；With,
For based on packet loss quantity and the quantity forwarded, calculating and obtaining current network packet loss；With for being connected based on sequence number
The packet of two continuous live data bags sends the difference of time, and viewing client receives continuous two of the sequence number
The difference of the reception time of live data bag, calculates and obtains current network shake；With,
Packet based on recently received live data bag sends time, and the currently data of the positive live data bag played
The difference of bag transmission time, calculates and obtains current network time delay；
Wherein, unicast packets and sender report SR are sent to current connection server P by live client；Transmitting terminal report
Accusing SR at least includes：The transmission time of sender report SR, live client have been sent to the live number of current connection server P
According to the quantity forwarded of bag, each live data bag at least includes：When being sent with its own unique corresponding sequence number and packet
Between, the wherein Serial No. continuous label of live data bag.
11. system according to any one of claim 8 to 10, it is characterised in that
The computing module, the current network quality Q for calculating current connection server P based on the first preset formulaP；
Wherein, first preset formula is：QP=a*LOSTP+b*JITTERP+c*DELAYP；
LOSTPIt is the current network packet loss；JITTERPFor the current network is shaken；DELAYPFor the current network is prolonged
When；A, b, c are respectively default weight coefficient.
12. methods according to claim 11, it is characterised in that
The acquisition module, is additionally operable to the target clothes in controlling client to switch to alternate servers set described in control module
Before business device, the offered load and net of each alternate servers in the destination server in alternate servers set are obtained respectively
Network time delay；
The computing module, is additionally operable to the offered load based on each alternate servers, network delay and the second preset formula, point
The alternative network quality Q of each alternate servers is not calculatedb；
Wherein, the second preset formula is：Qb=x*LOADb+y*DELAYb；
LOADbIt is the offered load of alternate servers, DELAYbIt is the network delay of alternate servers, x, y is respectively default weighting
Coefficient.
13. systems according to claim 11, it is characterised in that
The control module, is additionally operable to based on every alternative network quality Q of alternate serversb, by alternate servers set with
Minimum alternative network quality QbCorresponding alternate servers are used as destination server；With,
For controlling client to switch to the destination server.
14. systems according to claim 13, it is characterised in that also include：Timing module；
Wherein, the control module, is additionally operable to control client and sends connection request to the destination server；
The timing module, for after client with the destination server successful connection, with the time of successful connection to rise
Time beginning carries out timing, forms connection duration；
The control module, is additionally operable to judge whether the connection duration reaches preset duration；
If reaching preset duration, control client disconnects the connection with the current connection server P；
Otherwise, then the client is controlled while connecting the current connection server P and the destination server.
15. a kind of clients, it is characterised in that the client is provided with including straight described in any one of claim 8 to 14
Broadcast server switching system.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483990A (en) * | 2017-08-21 | 2017-12-15 | 广州多益网络股份有限公司 | Dynamic code rate adjusting method, device and the Transmission system of a kind of streaming media |
| WO2019084972A1 (en) * | 2017-11-06 | 2019-05-09 | 深圳市大疆创新科技有限公司 | Streaming media live broadcast method and system |
| CN110460878A (en) * | 2019-07-19 | 2019-11-15 | 视联动力信息技术股份有限公司 | A kind of switching method and apparatus of video communication link |
| CN111212087A (en) * | 2020-01-20 | 2020-05-29 | 上海米哈游天命科技有限公司 | Method, device, equipment and storage medium for determining login server |
| CN111371774A (en) * | 2020-02-28 | 2020-07-03 | 深信服科技股份有限公司 | Information processing method and device, equipment and storage medium |
| CN115022730A (en) * | 2022-06-13 | 2022-09-06 | 北京达佳互联信息技术有限公司 | Data transmission method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562615A (en) * | 2009-05-20 | 2009-10-21 | 宁波大学 | Transmission method for MPEG-4 code based multimedia data stream self-adapting network bandwidth |
| CN101834799A (en) * | 2010-05-06 | 2010-09-15 | 工业和信息化部电信传输研究所 | Selection method of server of mobile IPTV (Internet Protocol Television), client, server and system |
| CN104320296A (en) * | 2014-09-30 | 2015-01-28 | 深圳市云之讯网络技术有限公司 | Network quality estimation and detection method and device |
| CN105323529A (en) * | 2015-10-19 | 2016-02-10 | 掌赢信息科技（上海）有限公司 | Method for switching between audio call and video call, and electronic equipment |
| CN105847854A (en) * | 2016-04-12 | 2016-08-10 | 乐视控股（北京）有限公司 | Webcasting method and system |
-
2017
- 2017-01-13 CN CN201710028120.6A patent/CN106850277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562615A (en) * | 2009-05-20 | 2009-10-21 | 宁波大学 | Transmission method for MPEG-4 code based multimedia data stream self-adapting network bandwidth |
| CN101834799A (en) * | 2010-05-06 | 2010-09-15 | 工业和信息化部电信传输研究所 | Selection method of server of mobile IPTV (Internet Protocol Television), client, server and system |
| CN104320296A (en) * | 2014-09-30 | 2015-01-28 | 深圳市云之讯网络技术有限公司 | Network quality estimation and detection method and device |
| CN105323529A (en) * | 2015-10-19 | 2016-02-10 | 掌赢信息科技（上海）有限公司 | Method for switching between audio call and video call, and electronic equipment |
| CN105847854A (en) * | 2016-04-12 | 2016-08-10 | 乐视控股（北京）有限公司 | Webcasting method and system |
Non-Patent Citations (1)
| Title |
|---|
| H. SCHULZRINNE.ETC: ""RTP: A Transport Protocol for Real-Time Applications"", 《RFC3550》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107483990A (en) * | 2017-08-21 | 2017-12-15 | 广州多益网络股份有限公司 | Dynamic code rate adjusting method, device and the Transmission system of a kind of streaming media |
| CN107483990B (en) * | 2017-08-21 | 2020-04-14 | 广州多益网络股份有限公司 | Dynamic code rate adjusting method and device for streaming media transmission and transmission system |
| WO2019084972A1 (en) * | 2017-11-06 | 2019-05-09 | 深圳市大疆创新科技有限公司 | Streaming media live broadcast method and system |
| US11284126B2 (en) | 2017-11-06 | 2022-03-22 | SZ DJI Technology Co., Ltd. | Method and system for streaming media live broadcast |
| CN110460878A (en) * | 2019-07-19 | 2019-11-15 | 视联动力信息技术股份有限公司 | A kind of switching method and apparatus of video communication link |
| CN110460878B (en) * | 2019-07-19 | 2022-01-11 | 视联动力信息技术股份有限公司 | Switching method and device of video communication link |
| CN111212087A (en) * | 2020-01-20 | 2020-05-29 | 上海米哈游天命科技有限公司 | Method, device, equipment and storage medium for determining login server |
| CN111371774A (en) * | 2020-02-28 | 2020-07-03 | 深信服科技股份有限公司 | Information processing method and device, equipment and storage medium |
| CN113574841A (en) * | 2020-02-28 | 2021-10-29 | 深信服科技股份有限公司 | Information processing method and device, equipment and storage medium |
| CN115022730A (en) * | 2022-06-13 | 2022-09-06 | 北京达佳互联信息技术有限公司 | Data transmission method and device, electronic equipment and storage medium |
| CN115022730B (en) * | 2022-06-13 | 2024-04-30 | 北京达佳互联信息技术有限公司 | Data transmission method, device, electronic equipment and storage medium |
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Application publication date: 20170613 |