CN108282671A - A kind of streaming media data transmission method - Google Patents
A kind of streaming media data transmission method Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of streaming media data transmission method, apparatus and systems, it is related to streaming media field, to provide a kind of transmission of flow media data scheme based on frequency spectrum perception, reduce transmission of flow media data when packet loss phenomenon while, improve the real-time in the transmission process of stream medium data.In embodiments of the present invention, server is sent to terminal for obtaining whether the terminal has the request message for supporting multichannel communication ability, and determines whether the terminal supports multichannel communication according to the feedback message of the terminal；Whether the server has the quality of the ability and/or a plurality of communication channel of supporting multichannel communication according to the terminal, it determines one or more communication channel of transmission stream medium data, and transmission of flow media data is carried out with the terminal in the communication channel determined；While to reduce packet loss phenomenon when transmission of flow media data, the real-time in the transmission process of stream medium data is improved.
Description
The application be propose on February 13rd, 2015 it is entitled " a kind of streaming media data transmission method, device and
The divisional application of the Chinese invention patent application 201510079805.4 of system ".
Technical field
The present invention relates to streaming media field more particularly to a kind of streaming media data transmission method, apparatus and systems.
Background technology
With the development of computer technology and wireless communication technique, digital multimedia enters industrialization stage, various more matchmakers
Body application platform also gradually moves to maturity in industrialization process.WLAN（Wireless Local Area Networks, wirelessly
LAN）、Bluetooth（Bluetooth）And 3G（3rd-generation, 3rd generation mobile communication technology）Technology can carry
Meets the needs of various multimedias and real-time video transmission application for basic bandwidth；Meanwhile the calculating of embedded system
Ability but also realize that real-time multimedia information processing gradually becomes a reality on the mobile apparatus.To domestic and international, real time flow medium
The fields such as transmission is mainly used in video conference, multi-screen is shared.Compared to other multimedia services, transmission of flow media data
There is strict demand for real-time, network bandwidth, fault-tolerance, media sync, broadcasting flatness etc..
On the one hand, Streaming Media is to the more demanding of network availability bandwidth, and current Internet（Internet）Not
Enough bandwidth are reserved for Streaming Media；Moreover, usually storage forwarding, queue that existing router uses passively abandon
Mode, when network bandwidth fluctuates, this mode be easy to cause big the phenomenon that postponing or being dropped of flow media data packet,
To the transmission of streaming media prodigious influence is caused with play quality.
On the other hand, requirement of the Streaming Media for delay is significantly higher than general data.As the delay of real-time voice cannot be high
In 250ms, real-time video cannot then be more than 1s, but the unpromising real time flow medium data of Internet provide delay guaranteed,
Stream medium data needs the storage, queuing, repeating process of undergoing router, when network is gathered around still as general data
When plug, only the queue delay of stream medium data on the router will be more than often the minimum delay required by Streaming Media, and prolong
The late media data packet up to receiving terminal can cause the poor result of broadcast such as pause, shake when playing.
Furthermore more stringent requirements are proposed for the transmission of the isomerism of network and the isomerism streaming media of user.
In Internet, Internet resources（For example, link bandwidth, storage capacity, processing capacity, congestion control policy etc.）Distribution right and wrong
Uniformly.The isomerism of network refers to that two or more wireless communication systems uses different access technologies, or adopts
With identical wireless access technology but belong to different cellular carriers.Using existing various wireless communication system, passes through and be
The mode merged between system makes to learn from other's strong points to offset one's weaknesses between multisystem to meet a kind of effective means of future mobile communications business demand, energy
Enough comprehensive respective advantages of performance.Since existing various wireless access systems are all overlapping covering, institute in many regions
Can intelligently be combined together these overlapped different types of wireless access systems, multimode terminal intelligence is utilized
The access means of change make a variety of different types of networks provide wireless access anywhere or anytime to the user jointly, to constitute
Heterogeneous network.Network access mode based on isomery,（Such as Ethernet, ADSL（Asymmetric Digital Subscriber
Line, asymmetric digital subscriber line）、Wi-Fi（Wireless network）、WiMax（Worldwide Interoperability for
Microwave Access, worldwide interoperability for microwave accesses）、GPRS（General Packet Radio Service, general packet
Wireless service technology）, 3G network etc.）The terminal device of isomery,（Such as PC machine, notebook, PDA（Personal Digital
Assistant, palm PC）Or mobile phone etc.）And the user demand of isomery（Such as require audio priory, video priority or speed
Priority scheduling）All so that terminal user has otherness for transmission demand, the audio-visual quality demand of Streaming Media, to exacerbate
Delay when transmission of flow media data, phenomena such as causing the pause of streaming media playing, can not even play.
Invention content
A kind of streaming media data transmission method of offer of the embodiment of the present invention, apparatus and system, it is a kind of based on frequency to provide
Compose perception transmission of flow media data scheme, reduce transmission of flow media data when packet loss phenomenon while, improve Streaming Media
Real-time in the transmission process of data.
The embodiment of the present invention provides a kind of streaming media data transmission method, and this method includes：
Server is sent to terminal for obtaining whether the terminal has the request message for supporting multichannel communication ability, and root
Determine whether the terminal supports multichannel communication according to the feedback message of the terminal；
Whether the server has the matter of the ability and/or a plurality of communication channel of supporting multichannel communication according to the terminal
Amount, determine transmission stream medium data one or more communication channel, and in the communication channel determined with the terminal into
Row transmission of flow media data.
The embodiment of the present invention also provides a kind of transmission of flow media data device, which includes：
Communications capability request unit, for being sent to terminal for obtaining whether the terminal has support multichannel communication ability
Request message, and determine whether the terminal supports multichannel communication according to the feedback message of the terminal；
Whether channel selection and transmission unit have the ability for supporting multichannel communication and/or a plurality of communication according to the terminal
The quality of channel, determine transmission stream medium data one or more communication channel, and in the communication channel determined with institute
It states terminal and carries out transmission of flow media data.
The embodiment of the present invention provides a kind of stream medium data transmission system again, which includes：
Server disappears for sending the request for whether having support multichannel communication ability for obtaining the terminal to terminal
Breath, and determine whether the terminal supports multichannel communication according to the feedback message of the terminal；Whether had according to the terminal
The ability of standby support multichannel communication and/or the quality of a plurality of communication channel, determine the one or more of transmission stream medium data
Communication channel, and in the communication channel determined transmission of flow media data is carried out with the terminal；
The terminal, the request message sent for receiving the server support multichannel to lead to by whether the terminal has
The identification information carrying of letter ability returns to the server in feedback message；And in the communication determined by the server
Transmission of flow media data is carried out on channel.
It can be seen from the above technical proposal that server can be sent to terminal for obtaining whether the terminal has support
The request message of multichannel communication ability, and determine whether the terminal is supported using multichannel while passing according to the feedback of terminal
It is defeated, in this way, server can obtain the information of communication capability first, so that can when carrying out data transmission with the terminal
Most effective communication channel is selected to be communicated with the terminal according to the communication capacity of the terminal；In turn, server can also be according to the end
Whether the quality and the terminal of every communication channel at end have the ability for supporting multichannel communication, determine one or more
Communication channel, so that when server carries out streaming media in one or more communication channel determined with the terminal,
Greatly increase channel utilization, especially, in embodiments of the present invention, server is no longer limited to using default single channel
Stream medium data is sent to terminal, but is directed to the communication capacity of each terminal or the quality of each channel, stream matchmaker can be made by selecting
The highest several channels of body efficiency of transmission are to the terminal transmission stream medium data, to effectively raise the transmission of Streaming Media
Efficiency, and then congestion phenomenon when reducing transmission of flow media data.
Description of the drawings
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 having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow diagram of streaming media data transmission method provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of system architecture provided in an embodiment of the present invention；
Fig. 3 is the flow diagram that a kind of transmitting terminal provided in an embodiment of the present invention transmits stream medium data to receiving terminal；
Fig. 4 is the structural schematic diagram of transmission of flow media data device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of stream medium data transmission system provided in an embodiment of the present invention.
Specific implementation mode
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.
The embodiment of the present invention can be applied to transmit the application of various types of stream medium datas by Internet network
Scene, the embodiment of the present invention can be specifically adapted to the applied field of the multichannel real time streaming perceived based on wireless frequency spectrum
Scape.In embodiments of the present invention, the transmitting terminal of stream medium data can be server or other network equipments, stream medium data
Receiving terminal can be various terminals；Generally, transmitting terminal can be to have the network equipment for supporting multichannel communication ability, connect
Receiving end can be to have the terminal device for supporting multichannel communication ability, or be alternatively only to have and support single channel communication capacity
Terminal device；Wherein, transmitting terminal can establish linking on communication link with terminal by router, which can both have
It is standby to support multichannel communication ability, can not also have and support multichannel communication ability, support that multichannel is logical when router does not have
When letter ability, transmitting terminal can establish the connection on communication link with receiving terminal by various end-to-end direct-connected modes.
The embodiment of the present invention is directed to the problem of wireless network environment is vulnerable to external interference in the prior art, such as：Due to
Wireless network has the problems such as low bit rate, high packet loss, strong jamming, relative to wired real time streaming, wireless transmission letter
Road environment will badly much, and the reception bit error rate of data packet is several orders of magnitude higher than cable network.And compressed video data pair
Error code is very sensitive, though the bit error rate for receiving data packet decoded picture quality can be caused if very low it is very serious
It influences.This is because compressed encoding eliminates the redundancy in most of spatial domain and time-domain included in original image,
Even if the video flowing after coding only occurs to make if the mistake of a bit having in decoded image greatly empty
Between domain and time area image data be affected and can not normally decode display.And if the frame influenced by data packet error code is conduct
Below prediction frame reference frame when, cause a data packet error code can be rearwards picture frame diffusion so that decoding after
The deterioration of picture quality is more serious.An embodiment of the present invention provides a kind of binary channels based on wireless frequency spectrum perception is real-time
Transmission of flow media data technology can judge the occupancy situation of current wireless frequency spectrum, and optimal communication is selected according to judging result
Channel carries out the transmission of wireless flow media data, improves the real-time of transmission of flow media data, reduces stream medium data biography
Packet loss quantity when defeated enhances subjective viewing effect, improves user experience.
Fig. 1 shows a kind of flow diagram of streaming media data transmission method provided in an embodiment of the present invention, such as Fig. 1 institutes
Show, this method may include：
Step 11：Server is sent to terminal for obtaining whether terminal has the request message for supporting multichannel communication ability,
And determine whether terminal supports multichannel communication according to the feedback message of terminal.
Step 12：Whether server has the ability and/or a plurality of communication channel for supporting multichannel communication according to terminal
Quality determines one or more communication channel of transmission stream medium data, and is carried out with terminal in the communication channel determined
Transmission of flow media data.
Optionally, in above-mentioned steps 12, if terminal does not have the ability for supporting multichannel communication, server uses eventually
Any communication channel in a plurality of communication channel that can be supported is held to carry out transmission of flow media data with terminal；If terminal has branch
The ability of multichannel communication is held, then in server using terminal can be supported a plurality of communication channel or a plurality of communication channel
Any communication channel carries out transmission of flow media data with terminal.
Optionally, in above-mentioned steps, the quality of a plurality of communication channel includes：The quality of current communication channel and it is a plurality of not
Occupy the quality of communication channel；Server judges whether the quality of current communication channel is higher than the first predetermined threshold value, if so, making
Transmission of flow media data is carried out with current communication channel and terminal；If it is not, then judging to whether there is in a plurality of unoccupied channel
The quality of communication channel is more than the communication channel of the quality of current communication channel, and if it exists, then using the communication channel as to be cut
The communication channel changed, and the alteration command for being switched to be switched communication channel is sent to terminal, it is true to return to change in terminal
After recognizing message, transmission of flow media data is carried out using to be switched communication channel and terminal；If being not present, believed using present communications
Road carries out transmission of flow media data with terminal.
Optionally, in above-mentioned steps, the quality of a plurality of communication channel includes：The quality of current communication channel and it is a plurality of not
Occupy the quality of communication channel；Server is using currently used communication channel as principal communication channel, by vacant communication channel
In one or more communication channel as auxiliary communication channel, stream medium data is proportionally assigned to principal communication channel and auxiliary
It is transmitted in communication channel；Wherein, the network throughput of ratio and the network throughput and auxiliary communication channel of principal communication channel
It is related.
Optionally, in above-mentioned steps, when terminal has the ability for supporting double-channel communication, server will be currently used
Communication channel as principal communication channel, another communication channel that terminal is supported obtains master as auxiliary communication channel respectively
The network throughput T1 of the communication channel and network throughput T2 of auxiliary communication channel；Server is by stream medium data according to T1/ (T1
+ T2) ratio terminal is sent to by principal communication channel, stream medium data is passed through into auxiliary communication according to the ratio of T2/ (T1+T2)
Channel is sent to terminal.
The embodiment of the present invention is described in detail below.
The embodiment of the present invention is broadly divided into two parts：A part is frequency spectrum perception, and another part is real time flow medium
The distribution and transmission of data.Based on above-mentioned design, Fig. 2 shows the structural representations of system architecture provided in an embodiment of the present invention
Figure, as shown in Fig. 2, the system architecture is at least made of transmitting terminal 21 and receiving terminal 22, wherein transmitting terminal 21 can be wrapped at least
It includes：Wireless frequency spectrum sensing module and real time flow medium data distribute sending module, wireless frequency spectrum sensing module be used for currently without
Line frequency spectrum is perceived and is analyzed, and real time flow medium data distribution sending module is for receiving real time flow medium data and according to nothing
The perception of line frequency spectrum sensing module and analysis result, streaming media data are allocated, and pass through one or more communication channel
Stream medium data is transmitted to receiving terminal.
Fig. 3 shows that a kind of transmitting terminal provided in an embodiment of the present invention transmits the flow signal of stream medium data to receiving terminal
Figure is illustrated for being provided with the transmitting terminal and receiving terminal of supporting double-channel communication capacity in embodiments of the present invention,
In, a communication channel is the communication channel in 2.4GHz frequency ranges, and another communication channel is the communication channel in 5GHz frequency ranges；
But it in practical applications, is not limited to only have and supports double-channel communication capacity, can also have and support multichannel communication ability
Transmitting terminal and receiving terminal；In embodiments of the present invention, transmitting terminal can be streaming media server, receiving terminal can be client or
Terminal；As shown in figure 3, this method may include：
Step 31：Streaming media server（It can be referred to as server below）It is initialized.
When specific implementation, server initiation dual band wireless communication module can be by the communication in 2.4GHz frequency ranges
Channel is set as principal communication channel, will in the communication channel of 5GHz frequency ranges be arranged supplemented by communication channel.
Step 32：Server is begun listening in pre-set port numbers, and client is waited for initiate the connection.And in visitor
After Connection Service device is asked at family end, by Streaming Media link is established after the identity of server authentication client on principal communication channel.
When specific implementation, server（Usually Streaming Media transmitting terminal）Network is opened in the starting communication channel 0 of acquiescence
Interface is begun listening for, and waits for client（Usually Streaming Media receiving terminal, as terminal can claim below for convenience
For client）That initiates establishes connection request；The identity of server authentication client, and in principal communication channel after being proved to be successful
On establish Streaming Media link.
Step 33：After link is established, server is sent to client for obtaining whether the client has the double letters of support
The request message of road communication capacity.
When specific implementation, after establishing connection with client, server can be to the wireless of client request client
The ability of communication capacity and audio/video decoding.
Step 34：The response message that server is returned according to client judges whether client has and supports that double-channel is logical
The ability of letter thens follow the steps 35 if having, if not having, executes 36.
When specific implementation, client will carry the response message of the ability of own radio ability and audio/video decoding
Return to client.It should be noted that in the poor quality of present channel, whether server can have according to client
The ability of double-channel communication, selection is supported to execute step 35 or step 36；If the quality of present channel is preferable, server can
It is transmitted using current communication channel with maintenance, can also select to execute step 35 or step 36.
Step 35：When client has the ability for supporting double-channel communication, server according to a certain percentage, is led to using main
Believe that channel and auxiliary communication channel carry out transmission of flow media data.
When specific implementation, server first initializes its auxiliary communication channel（Communication channel in 5Ghz frequency ranges）.At this point,
What server and client side established is the data connection channel of binary channels two-band, and server and client side will pass through binary channels
Two-band carries out sending and receiving for data.During data transmission and reception, the real time flow medium data point of server
The data of real time flow medium are assigned to according to a certain percentage on two different radio communication channels with module.Real-time streams matchmaker
Volume data distribution sending module counts the network throughput of each wireless channel during data are sent, if will lead
The network throughput in channel is denoted as T1, the network throughput of auxiliary communication channel is denoted as to T2, real time flow medium data distribution hair
Module is sent to send stream medium data by main data channel according to the ratio of T1/ (T1+T2), and according to the ratio of T2/ (T1+T2)
Stream medium data is sent by assisting data channel.In embodiments of the present invention, selected two be separated by big frequency range into
The twin-channel data transmission of row two-way, therefore, the possibility that two data channel are interfered simultaneously are smaller.
It should be noted that after executing step 35, current transmission of flow media data flow terminates, but is not meant to
Transmission of flow media data is carried out by dual communication channel and client during follow-up transmission of flow media data.Server still may be used
Real-time perception is carried out to wireless frequency spectrum with reality, and single communication channel or more communication channels are used according to wireless frequency spectrum sensing results
Follow-up transmission of flow media data is carried out with client.
Step 36：When client does not have the ability for supporting double-channel communication, server determination is believed using single communication
Road carries out transmission of flow media data.
When specific implementation, if client can only support the broadcasting of single pass real time flow medium, server and visitor
What family end was established is common wireless flow media transmission channel, that is, uses single communication channel to carry out transmission of flow media data.When
When what server and client side established is common single-channel data interface channel, only by single between server and receiving terminal
Communication channel send and receive data, however, since server in embodiments of the present invention has at least two communication channels,
Therefore server can use any communication channel in principal communication channel or auxiliary communication channel to carry out stream medium data with client
Transmission.
Step 37：Server judges whether to need from master according to the quality of the quality and auxiliary communication channel of principal communication channel
Communication channel is switched to auxiliary communication channel, if not needing, thens follow the steps 38, otherwise, executes step 39.
When specific implementation, server judges the quality of current communication channel（That is the quality of principal communication channel）Whether less than the
One predetermined threshold value, if it is not, thening follow the steps 38；Otherwise, judge the quality of auxiliary communication channel whether better than current communication channel
Quality（That is the quality of principal communication channel）；When whether the quality of auxiliary communication channel is better than the quality of current communication channel（It is i.e. main logical
Believe the quality of channel）When, execute step 39；When whether the quality of auxiliary communication channel is not better than the quality of current communication channel（I.e.
The quality of principal communication channel）When, execute step 38.
In embodiments of the present invention, the first predetermined threshold value can be specially the value of the 20%, also, first predetermined threshold value can
To be adjusted according to practical situations.
Step 38：Server still uses principal communication channel to carry out transmission of flow media data with client.
It should be noted that after executing step 38, current transmission of flow media data flow terminates, but is not meant to
Transmission of flow media data is carried out by principal communication channel and client during follow-up transmission of flow media data.Server still may be used
Real-time perception is carried out to wireless frequency spectrum with reality, and is carried out using other communication channels and client according to wireless frequency spectrum sensing results
Follow-up transmission of flow media data.
Step 39：Server sends the alteration command for being switched to auxiliary communication channel to client, and is returned in client
After returning change confirmation message, transmission of flow media data is carried out using auxiliary communication channel and client.
When specific implementation, during data communicate, the wireless communication spectrum sensing module in server is periodic
The frequency spectrum service condition in Current wireless communication environment is detected, when the transmission failure rate rising of real time flow medium data, or is occurred
When a large amount of data-bag lost phenomenon or network heavy congestion, according to the statistics calculating of frequency spectrum sensing module as a result, by data
Transmission channel is transferred in the preferable communication channel of radio communication quality.In this way, server is in transmission process, once perception
It is being perceived according to wireless frequency spectrum as a result, being switched to channel radio with client negotiation after being deteriorated to current transmission environment situation
The letter interference preferable communication channel of smaller or radio communication quality.
It should be noted that in above-mentioned steps 39, if client does not return to change confirmation message or client returns and becomes
More failed message, then server is still using principal communication channel and client progress transmission of flow media data.
It should also be noted that, after executing step 39, current transmission of flow media data flow terminates, but is not meant to
Transmission of flow media data is carried out by auxiliary communication channel and client during follow-up transmission of flow media data.Server is still
Can real-time perception be carried out to wireless frequency spectrum in fact, and according to wireless frequency spectrum sensing results using other communication channels and client into
The follow-up transmission of flow media data of row.
It can be seen from the above technical proposal that server can be sent to terminal for obtaining whether the terminal has support
The request message of multichannel communication ability, and determine whether the terminal is supported using multichannel while passing according to the feedback of terminal
It is defeated, to unify the network access mode of isomery in the prior art, server and terminal is made to use identical procotol
Network is accessed, is reduced in the prior art due to the delay phenomenon of transmission of flow media data caused by the isomerism of network；Also,
Whether server can also have the quality of the ability and every communication channel of supporting multichannel communication according to terminal, determine one
Item or a plurality of communication channel can make biography when carrying out streaming media in one or more communication channel determined
Defeated efficiency highest, to reduce congestion phenomenon when transmission of flow media data.
Based on the same technical idea, the embodiment of the present invention also provides a kind of transmission of flow media data device, and Fig. 4 is shown
The structural schematic diagram of transmission of flow media data device provided in an embodiment of the present invention, as shown in figure 4, the device may include：
Communications capability request unit 41, for being sent to terminal for obtaining whether the terminal has support multichannel communication energy
The request message of power, and determine whether the terminal supports multichannel communication according to the feedback message of the terminal；
Whether channel selection and transmission unit 42 have the ability for supporting multichannel communication and/or a plurality of logical according to the terminal
Believe channel quality, determine transmission stream medium data one or more communication channel, and in the communication channel determined with
The terminal carries out transmission of flow media data.
Optionally, the channel selection and transmission unit 42 are specifically used for：Do not have in the terminal and supports that multichannel is logical
When the ability of letter, any communication channel in a plurality of communication channel that can be supported using the terminal is flowed with the terminal
Media data transmission；When the terminal has the ability for supporting multichannel communication, a plurality of communication that using terminal can be supported
Any communication channel in channel or a plurality of communication channel carries out transmission of flow media data with the terminal.
Optionally, the quality of a plurality of communication channel includes：The quality of current communication channel and a plurality of vacant communication
The quality of channel；The channel selection and transmission unit 42 are specifically used for：Judge whether the quality of the current communication channel is high
In the first predetermined threshold value, if so, carrying out transmission of flow media data using current communication channel and the terminal；If it is not, then sentencing
Break and be more than the quality of the current communication channel with the presence or absence of the quality of any communication channel in a plurality of unoccupied channel,
If in the presence of, using the communication channel as to be switched communication channel, and it is described to be cut for being switched to terminal transmission
The alteration command for changing communication channel uses the to be switched communication channel and institute after the terminal returns to change confirmation message
It states terminal and carries out transmission of flow media data；If being not present, stream medium data is carried out using current communication channel and the terminal
Transmission.
Optionally, the quality of a plurality of communication channel includes：The quality of current communication channel and a plurality of vacant communication
The quality of channel；The channel selection and transmission unit 42 are specifically used for：Believe currently used communication channel as principal communication
Road, using one or more communication channel in the vacant communication channel as auxiliary communication channel, by stream medium data according to
It is transmitted in pro rate to the principal communication channel and the auxiliary communication channel；Wherein, the ratio and the principal communication
The network throughput of channel is related with the network throughput of the auxiliary communication channel.
Optionally, when the terminal has the ability for supporting double-channel communication, the channel selection and transmission unit 42
It is specifically used for：Using currently used communication channel as principal communication channel, another communication channel that terminal is supported is as auxiliary
Communication channel obtains the network throughput T2 of the network throughput T1 and the auxiliary communication channel of the principal communication channel respectively；
Stream medium data is sent to the terminal according to the ratio of T1/ (T1+T2) by the principal communication channel, by the Streaming Media
Data are sent to the terminal according to the ratio of T2/ (T1+T2) by the auxiliary communication channel.
Based on the same technical idea, the embodiment of the present invention also provides a kind of stream medium data transmission system, and Fig. 5 is shown
The structural schematic diagram of stream medium data transmission system provided in an embodiment of the present invention, as shown in figure 5, the system may include：
Server 51, for being sent to terminal 52 for obtaining whether the terminal 52 has asking for support multichannel communication ability
Message is sought, and determines whether the terminal 52 supports multichannel communication according to the feedback message of the terminal 52；According to the end
Whether end 52 has the quality of the ability and/or a plurality of communication channel of supporting multichannel communication, determines transmission stream medium data
One or more communication channel, and in the communication channel determined transmission of flow media data is carried out with the terminal 52；
Whether the terminal is had the more letters of support by the terminal 52, the request message for receiving the transmission of the server 51
The identification information carrying of road communication capacity returns to the server 51 in feedback message；And it is determined by the server 51
Transmission of flow media data is carried out in the communication channel gone out.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices so that
A stream in flow chart can be achieved in the instruction executed by the computer or the processor of other programmable data processing devices
The function of being specified in journey or multiple flows and/or one box of block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of 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 count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in a flow of flow chart or multiple flows and/or block diagram
A box or multiple boxes in specify function the step of.
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 can 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
God 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 (2)
1. a kind of streaming media data transmission method, which is characterized in that this method includes：
Step 31：Streaming media server is initialized；
Step 32：Streaming media server is begun listening in pre-set port numbers, and client is waited for initiate the connection；
And client request connect streaming media server after, by streaming media server verify client identity after in principal communication
Streaming Media link is established on channel；
Step 33：After link is established, streaming media server is sent to client for obtaining whether the client has support pair
The request message of channel communication ability；
Step 34：The response message that streaming media server is returned according to client, judges whether client has support double-channel
The ability of communication thens follow the steps 35 if having, if not having, executes 36；
Step 35：When client has the ability for supporting double-channel communication, streaming media server according to a certain percentage, uses
Principal communication channel and auxiliary communication channel carry out transmission of flow media data；
Step 36：When client does not have the ability for supporting double-channel communication, streaming media server, which determines, uses single communication
Channel carries out transmission of flow media data；
Step 37：Streaming media server according to the quality of the quality and auxiliary communication channel of principal communication channel, judge whether to need from
Principal communication channel is switched to auxiliary communication channel, if not needing, thens follow the steps 38, otherwise, executes step 39；
Step 38：Streaming media server still uses principal communication channel to carry out transmission of flow media data with client；
Step 39：Streaming media server sends the alteration command for being switched to auxiliary communication channel to client, and in client
After returning to change confirmation message, transmission of flow media data is carried out using auxiliary communication channel and client.
2. the method as described in claim 1, which is characterized in that in above-mentioned steps 39, if client does not return to change and confirms
Message or client return to change failed message, then streaming media server still carries out stream matchmaker using principal communication channel and client
Volume data is transmitted.
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