CN108234511A - Method, system, equipment, storage medium and the gateway of multi-medium data transmission - Google Patents
Method, system, equipment, storage medium and the gateway of multi-medium data transmission Download PDFInfo
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- CN108234511A CN108234511A CN201810049931.9A CN201810049931A CN108234511A CN 108234511 A CN108234511 A CN 108234511A CN 201810049931 A CN201810049931 A CN 201810049931A CN 108234511 A CN108234511 A CN 108234511A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
Abstract
The present invention provides method, system, equipment, storage medium and the gateway of multi-medium data transmission, including step：Receive signaling data, and signaling data is changed according to the destination address of signaling data, the transport protocol of signaling data is converted as public network User Agreement or udp protocol, change the SDP fields of signaling data, the candidate IP address of addition and port are to realize network address translation as preset public network IP address and first port or internal network IP address and second port, signaling data after change is sent to destination address, establish multimedia transmission connection, media stream data is received, the media stream data after change is sent to destination address.The present invention is by converting the transport protocol of signaling data, so that internally the transport protocol of the data of network transmission is unified for udp protocol, background server only needs to handle the data of udp protocol, is achieved that without being transformed for all users of VoIP service support.
Description
Technical field
The present invention relates to multi-medium datas under network environment to transmit, specifically, be related to multi-medium data transmission method,
System, equipment, storage medium and gateway.
Background technology
VoIP (Voice over IP, IP-based language service) refers in internet, Intranet and local
Multi-medium data transmission is carried out on data network based on IP (Internet Protocol, the agreement interconnected between network) in net,
Multi-medium data includes voice and video data, signaling data.VoIP for consumer provide it is more diversified, simplify, price it is low
Honest and clean practical business, while cheap service is provided, meet the developing direction of unification of three nets, push the development of telecommunications industry
And transition.VoIP establishes session using SIP (Session Initiation Protocol, session initiation protocol).SIP is
The multimedia communication protocol formulated by IETF (Internet Engineering Task Force, internet engineering task group),
It is a text based application layer control protocol, for creating, changing and discharging the session of one or more participants.So
And the transmission mode of SIP session datas is varied, different data sources uses the transport protocol of different-format, such as web
SIP session datas access VoIP service can be transmitted by way of WS or WSS agreements by holding, and mobile terminal application program, software
Terminal, entity phone can access VoIP service by modes such as UDP, TCP or tls protocols.
Therefore, VoIP service will support all users, it is necessary to realize above-mentioned all transmission modes.However it realizes above-mentioned
All transmission modes to background system, background server it is more demanding, need to transform background system, background server as energy
It enough supports above-mentioned all transmission protocol datas, expends time and cost.
In addition, since public ip address is in short supply and network security problem, it usually needs use NAT (Network Address
Translation, network address translation), however realize that the multi-medium data transmission of all transmission modes becomes into one under NAT
The subject urgently to be resolved hurrily of step.
Invention content
For the problems of the prior art, in order to solve the above technical problems, The present invention provides a kind of multi-medium datas
Method, system, equipment, storage medium and the gateway of transmission, can to background server without any transformation in the case of,
Realize the multi-medium data transmission of all transmission modes, the method for multi-medium data transmission provided by the present invention can be realized
The NAT of multi-medium data is passed through, so as to effectively improve public ip address distribution and improve internet security.
The method that the first aspect of the present invention provides a kind of transmission of multi-medium data, multi-medium data include signaling data with
And media stream data, multi-medium data transmit between public network and internal network, the method packet of multi-medium data transmission
Include step：S11 receives signaling data；S12 changes signaling data, when the mesh of signaling data according to the destination address of signaling data
When marking address as public network, the transport protocol of signaling data is converted as public network User Agreement, by the network of signaling data
Address and port translation are preset public network IP address and first port, when destination address is internal network, are turned
The transport protocol for changing signaling data is udp protocol, is preset intranet by the network address of signaling data and port translation
Network IP address and second port；Signaling data after change is sent to destination address by S13, and receives destination address return
Signaling data；Step S11 to S13 is repeated until establishing multimedia transmission connection；S14 receives media stream data, conversion
The IP address of media stream data and port are for preset public network IP address and first port or preset internal network IP
Media stream data after change is sent to destination address by location and second port.
Preferably, step S12 includes：S121, the destination address and source address of certification signaling data；S122 is obtained more
Media proxy resource distributes the port numbers of first port and the port numbers of second port from multiple alternative port numbers；
S123 changes the SDP fields of signaling data according to the destination address of signaling data, and it is public to add candidate IP address and port
Network ip address and first port or internal network IP address and second port；S124, according to the target of signaling data
The transport protocol of address conversion signaling data.
Preferably, IP of the preset public network IP address in step S12 for the first network interface card of multimedia transmission gateway
Address, the first network interface card are docked with public network, and preset internal network IP address is the second network interface card of multimedia transmission gateway
IP address, the second network interface card are docked with internal network.
Preferably, in step S123, the alternative port numbers quantity of first port and the alternative port of second port
Number amount is equal, each time multimedia transmission connection in, be distributed into the port numbers of first port and the end of second port
Slogan.
The second aspect of the present invention also provides a kind of system of multi-medium data transmission, and multi-medium data includes signaling data
And media stream data, multi-medium data transmit between public network and internal network, including：Signalling service module, letter
Enable service module for receive send signaling data, with establish multimedia transmission connect, signalling service module is according to signaling data
Destination address change signaling data, when signaling data destination address be public network when, convert signaling data transmission association
Discuss as public network User Agreement, by the network address of signaling data and port translation for preset public network IP address with
And first port, when destination address is internal network, the transport protocol of signaling data is converted as udp protocol, by signaling data
Network address and port translation be preset internal network IP address and second port；Media streaming services module, media
Stream service module is used to receive media stream data after multimedia transmission connection is established, and converts IP address and the end of media stream data
Mouth is preset public network IP address and first port or preset internal network IP address and second port, after change
Media stream data is sent to destination address.
Preferably, the system of multi-medium data transmission includes the first IP address and the second IP address, preset public network
Network IP address is the first IP address, and the first IP address is used for and public network communication, and preset internal network IP address is second
IP address, the second IP address is used for and internal network communication.
Preferably, signalling service module obtains multimedia proxy resources to media streaming services module, from multiple alternative ends
The port numbers of first port are distributed in slogan and state the port numbers of second port, the alternative port numbers quantity of first port with
The alternative port numbers quantity of second port is equal, each time multimedia transmission connection in, be distributed into first port end
The port numbers of slogan and second port.
Preferably, signalling service module changes the SDP fields of signaling data according to the destination address of signaling data, and addition is waited
IP address and port are selected as public network IP address and first port or internal network IP address and second port.
The third aspect of the present invention also provides a kind of multi-medium data transmission device, including：Processor；Memory, wherein
It is stored with the executable instruction of processor；Wherein, processor is configured to perform above-mentioned first party via executable instruction is performed
The step of method of the multi-medium data transmission in face.
The fourth aspect of the present invention also provides a kind of computer readable storage medium, and for storing program, program is performed
The step of method of the multi-medium data transmission of the above-mentioned first aspects of Shi Shixian.
The fifth aspect of the present invention also provides a kind of multi-medium data transport gateway, and multi-medium data transport gateway includes upper
The system for stating the multi-medium data transmission of second aspect.
Method, system, equipment, storage medium and the gateway of multi-medium data transmission provided by the present invention are according to signaling number
According to destination address change signaling data, the transport protocol of signaling data is converted, so that the internally biography of the data of network transmission
Defeated agreement is unified for udp protocol, and meets public network User Agreement to the data of public network transmissions.Background system, backstage
Server only need handle udp protocol data, without be transformed be achieved that for VoIP service support it is all
User.
By the change to signaling data SDP fields, candidate IP address and port are added to realize network address translation,
IP address and the port of the media stream data are converted, is passed through so as to fulfill NAT, effectively improve public ip address distribution and is carried
High internet security.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon.
Fig. 1 is the flow chart of the method for the multi-medium data transmission of one embodiment of the invention；
Fig. 2 is the detail flowchart of step S12 in Fig. 1；
Fig. 3 is the configuration diagram of the system of the multi-medium data transmission of one embodiment of the invention；
Time diagram when Fig. 4 is internal network exhalation of the present invention；
Time diagram when Fig. 5 is public network exhalation of the present invention；
Fig. 6 is the structure diagram of the equipment of the multi-medium data transmission of one embodiment of the invention；
Fig. 7 is the structure diagram of the computer readable storage medium of one embodiment of the invention；And
Fig. 8 is the structure diagram of the multi-medium data transport gateway of one embodiment of the invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.On the contrary, these embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note represents same or similar structure, thus will omit repetition thereof.
Existing VoIP service for background system, background server it is more demanding, it is desirable to be able to support all public
Network user's agreement, since background server is more, transformation backstage is difficult one by one, expends time and cost.Meanwhile
The multi-medium data transmission of all transmission modes is realized under NAT becomes further subject urgently to be resolved hurrily.
The VoIP of the present invention establishes session using SIP, in both sides or multi-party progress voice-over-net service, each side's transmission
Multi-medium data include signaling data and media stream data, signaling data be used for coordinate multimedia transmission communication process,
Media stream data includes specific media content such as voice data, video data.The targeted multi-medium data of the present invention passes
It is defeated, it is mainly used in situation about being transmitted between public network and internal network.
Fig. 1 is the flow chart of the method for the multi-medium data transmission of one embodiment of the invention.The multi-medium data of the present invention
The method of transmission includes multimedia transmission gateway, and multimedia transmission gateway is arranged between public network and internal network, is used for
As the multi-medium data packet between gateway processes public network and internal network.
As shown in Figure 1, the method for the multi-medium data transmission of the present invention, includes the following steps：
S11, signaling data is received.Signaling data includes the signaling data of call request according to its content, call
Signaling data.By the interaction of multiple signaling data, each side's multimedia transmission establishment of connection is realized.
S12, the destination address change signaling data according to the signaling data received.
Fig. 2 is the detail flowchart of step S12 in Fig. 1, and step S12 is illustrated with reference to Fig. 2.First such as step
S121, the destination address and source address of certification signaling data.When the calling for receiving the transmission of multi-medium data session setup side
During the signaling data of request, the destination address and source address of the signaling data are authenticated, it is abnormal to confirm that address is not present,
So as to ensure communications security.
Preferably, further include authentication registration step before the signaling data for receiving call request in the present embodiment, i.e., it is public
The communication information is registered and is stored in multimedia transmission gateway by the client of network or the background server of internal network.It is above-mentioned
The communication information includes the client of public network or IP address and the port of server.For communication security, multimedia transmission
Gateway is authenticated the client of public network.In the present embodiment, in order to improving the processing of multimedia transmission gateway
Efficiency, reduce operation occupy, improve system throughput, inquire public network client whether within the preset period once
Went registration, in this way then no longer authentication registration, the client for directly giving tacit consent to the public network is security client, is subsequently walked
Suddenly.
Then, such as step S122, multimedia proxy resources are obtained.Multimedia proxy resources include first port and second end
The port numbers of mouth.Multimedia transmission gateway distributes the port numbers and second port of first port from multiple alternative port numbers
Port numbers.For being docked with public network, second port is used to dock with internal network wherein first port.
Preferably, in order to ensure treating capacity during high concurrent, the alternative port numbers quantity and second port of first port
Alternative port numbers quantity it is equal, that is to say, that can be directed to each time multimedia transmission connection assignment of port numbers 1 to 1 into
To first port and second port.In order to facilitate management, in a multimedia transmission connection, first port and described the
The port numbers of Two-port netwerk are identical.
At least alternative port numbers of 1000 pairs of first ports and second port in the present embodiment are set, are further ensured
The processing speed and treating capacity of multi-medium data.
Then such as step S123, according to the destination address of signaling data, network address and the port of signaling data are converted.
Multimedia transmission gateway includes the first network interface card and the second network interface card, and the first network interface card is docked with public network, the second net
Card is docked with internal network.IP address of the preset public network IP address for the first network interface card of multimedia transmission gateway, presets
Internal network IP address for multimedia transmission gateway the second network interface card IP address.
Preferably, in the present invention, by change signaling data SDP fields convert signaling data network address and
Port.Specifically, candidate IP address and port are added in the SDP fields of signaling data, so that after receiving change
The recipient of signaling data can be by reading candidate IP address and port position multimedia proxy resources, so as to facilitate height
It imitates and has reliably ensured the NAT of information data and passed through.
For changing the SDP fields of signaling data, when signaling data destination address is public network, addition is candidate
IP address and port are to realize that network address translation as preset public network IP address and first port, works as signaling data
When destination address is internal network, candidate IP address and port are added to realize network address translation as preset internal network
IP address and second port.
Such as step S124, the transport protocol of signaling data is converted.When signaling data destination address is public network, conversion
The transport protocol of signaling data is public network User Agreement.When signaling data destination address is internal network, signaling is converted
The transport protocol of data is udp protocol.
Public network User Agreement includes WS agreements, WSS agreements, udp protocol, Transmission Control Protocol or tls protocol.WS agreements are
The protocol specification that html5 is proposed, was set to standard RFC 6455, and supplement specification by RFC7936 in 2011 by IETF,
The specification of one communication of WS protocol conventions, the mechanism shaken hands by one can establish a class between browser and server
Like the connection of TCP.WSS agreements are the encryption versions of WS agreements, and WS agreements are combined with SSL, realize safe WS agreements and lead to
Letter, i.e. WSS agreements.Transmission Control Protocol (Transmission Control Protocol, transmission control protocol) is a kind of towards even
Transport layer communication protocol connecing, reliable, based on byte stream, is defined by the RFC 793 of IETF.Tls protocol
(TransportLayer Security, safe transmission layer protocol) between two communication application programs for providing confidentiality
And data integrity.Udp protocol (User Datagram Protocol, User Datagram Protocol) is OSI (Open System
Interconnection, open system interconnection) a kind of connectionless transport layer protocol in reference model, it provides towards affairs
Simple unreliable information transmission service, IETF RFC 768 are the formal specifications of UDP.
Due to having changed the transport protocol of signaling data, so that internally the transport protocol of the data of network transmission is unified for
Udp protocol, and meet public network User Agreement to the data of public network transmissions.Therefore background system, background server
The data of processing udp protocol are needed, are achieved that without being transformed for all users of VoIP service support.
Preferably, step S122 and step S123 are performed before step S124, are implemented so as to ensure in step S124
When failing or there is mistake, transmission signaling data still is able to, so as to improve communication success rate.
Signaling data after change is sent to destination address by S13, and receives the signaling data of destination address return.
It is to repeat step S11 to receive the signaling data returned, and it is each until communicating to repeat step S11 to S13
Fang Jianli multimedia transmissions connect.Step S14 is performed if multimedia transmission successful connection has been established.
S14 receives conversion and sends media stream data.
Specifically, after multimedia transmission connection is established, media stream data is received.According to the target of media stream data
Location convert media stream data IP address and port into preset public network IP address and first port or preset intranet
Media stream data after change is sent to destination address by network IP address and second port.
By the change to signaling data SDP fields, candidate IP address and port are added to realize network address translation,
So that when multimedia transmission connection is established, communication parties can obtain media stream data in public network and internal network
The transmission objectives address of processing.IP address and the port of the media stream data are converted, passes through, effectively improves so as to fulfill NAT
Public ip address distributes and improves internet security.
Fig. 3 is the configuration diagram of the system of the multi-medium data transmission of one embodiment of the invention, is said as shown in Figure 3 below
The system of the multi-medium data transmission of the bright present invention.
The system 10 of multi-medium data transmission includes signalling service module 11 and media streaming services module 12.Wherein, believe
Enable service module 11 for receive send signaling data, with establish multimedia transmission connect.Media streaming services module 12 is used for
Transmitting media flow data after multimedia transmission connection is established.
In figure 3, the client 21,22,23 in public network 20 transmits multimedia with a variety of public network User Agreements
Data.The transmitting multimedia data by way of WS agreements or WSS agreements of web terminal user 21.Mobile terminal application user 22
Or software terminal accesses VoIP service by modes such as TCP or tls protocols.Entity handset users 23 can be passed by udp protocol
Defeated multi-medium data.
There are multiple processing speech processes background servers 31 in internal network 30,32, such as call center 31 and language
Sound server 32.
As shown in figure 3, the client 21,22,23 in public network 20 and the background server 31,32 in internal network 30
It needs to carry out multi-medium data transmission.
In the present embodiment, the signalling service module 11 first in the system 10 of multi-medium data transmission receives signaling data.
Then signalling service module 11 changes signaling data according to the destination address of signaling data.Specifically, multimedia
The system 10 of data transmission includes the first IP address and the second IP address, and preset public network IP address is for the first IP
Location, the first IP address with public network 20 for communicating, and preset internal network IP address is the second IP address, the second IP address
For communicating with internal network 30.
Signalling service module 11 applies for first end after the signaling data that calling is initiated is received, to media streaming services module 12
Mouth and the port numbers of second port, media streaming services module 12 distribute the end of first port and second port in multiple port numbers
Slogan, in a multimedia transmission connection, first port is identical with the port numbers of second port.
When signaling data destination address is public network 20, the transport protocol of signaling data is converted as public network user
Agreement changes the SDP fields of signaling data, adds candidate IP address and port to realize network address translation as preset public affairs
Network ip address and first port altogether, when destination address is internal network, the transport protocol for converting signaling data is assisted into UDP
View changes the SDP fields of signaling data, adds candidate IP address and port to realize network address translation as preset inside
Network ip address and second port.
Public network User Agreement includes WS agreements, WSS agreements, udp protocol, Transmission Control Protocol or tls protocol.
Signaling data after change is sent to destination address by signalling service module 11, and receives the letter of destination address return
Enable data.Signalling service module 11, which steps be repeated alternatively until, establishes multimedia transmission connection.
Media streaming services module receives media stream data after multimedia transmission connection is established, and converts the IP of media stream data
Address and port are preset public network IP address and first port or preset internal network IP address and second port, are incited somebody to action
Media stream data after change is sent to destination address, so as to carry out media stream data transmission.
Time diagram when Fig. 4 is internal network exhalation of the present invention, sequential when Fig. 5 is public network exhalation of the present invention
Schematic diagram.The data handling procedure of the system of multi-medium data transmission is illustrated with reference to Fig. 4, Fig. 5.
As shown in figure 4, internal network 30 sends out the signaling data of call request.In the system 10 of multi-medium data transmission
Signalling service module 11 receives the signaling data.Signalling service module 11 applies for proxy resources, matchmaker to media streaming services module 12
Body stream service module 12 returns to proxy resources to signalling service module 11.Proxy resources include the end of first port and second port
Slogan.
Signalling service module 11 changes signaling data according to the destination address of signaling data, and destination address is public network
20, then the transport protocol of signaling data is converted as public network User Agreement, the SDP fields of signaling data is changed, in SDP fields
Middle addition candidate's IP address and IP address and first port that port is the first network interface card.Signalling service module 11 is to public network
The signaling data of call request after the destination address forwarding change of network 20.
Signalling service module 11 receives the signaling data for the call that public network 20 returns, according to the mesh of signaling data
Address change signaling data is marked, destination address is internal network 10, then converts the transport protocol of signaling data as udp protocol, more
Change the SDP fields of signaling data, candidate IP address and port are added in SDP fields as the IP address of the second network interface card and the
Two-port netwerk.Signalling service module 11 internally network 10 destination address forwarding change after call signaling data.
The background server in client and internal network 10 in public network 20 is obtained for subsequent media stream
The IP address of data transmission and port, multimedia transmission connection are established.Client and internal network in public network 20
Background server in 10 handles media stream data by media streaming services module 12, so as to fulfill multimedia communication.
Similar, as shown in figure 5, public network 20 sends out the signaling data of call request.Multi-medium data transmission be
Signalling service module 11 in system 10 receives the signaling data.Signalling service module 11 applies acting on behalf of to media streaming services module 12
Resource, media streaming services module 12 return to proxy resources to signalling service module 11.In the present embodiment, proxy resources are
The port numbers of Single port and second port.
Signalling service module 11 changes signaling data according to the destination address of signaling data, and destination address is internal network
10, then the transport protocol of signaling data is converted as udp protocol, changes the SDP fields of signaling data, is added and is waited in SDP fields
Select the IP address and second port of IP address and port for the second network interface card.The mesh of the internally network 10 of signalling service module 11
Mark the signaling data of the call request after the forwarding change of address.
Signalling service module 11 receives the signaling data for the call that public network 20 returns, according to the mesh of signaling data
Address change signaling data is marked, destination address is public network 20, then the transport protocol for converting signaling data is used into public network
Family agreement changes the SDP fields of signaling data, and the IP of candidate IP address and port for the first network interface card is added in SDP fields
Address and first port.The letter of call of the signalling service module 11 after the destination address forwarding change of public network 20
Enable data.
The background server in client and internal network 10 in public network 20 is obtained for subsequent media stream
The IP address of data transmission and port, multimedia transmission connection are established.Client and internal network in public network 20
Background server in 10 handles media stream data by media streaming services module 12, so as to fulfill multimedia communication.
By the system introduction that transmits above to multi-medium data it is found that the present invention according to the destination address of signaling data more
Change signaling data, convert the transport protocol of signaling data, so that internally the transport protocol of the data of network transmission is unified for UDP
Agreement, and meet public network User Agreement to the data of public network transmissions.Background system, background server only need to handle
The data of udp protocol are achieved that without being transformed for all users of VoIP service support.
By the change to signaling data SDP fields, candidate IP address and port are added to realize network address translation,
IP address and the port of the media stream data are converted, is passed through so as to fulfill NAT, effectively improve public ip address distribution and is carried
High internet security.
The embodiment of the present invention also provides a kind of multi-medium data transmission device, including processor.Memory, wherein being stored with
The executable instruction of processor.Wherein, processor is configured to be performed above-mentioned multimedia number via execution executable instruction
According to transmission method the step of.
As above, which changes signaling data according to the destination address of signaling data, converts the transmission association of signaling data
View so that internally the transport protocol of the data of network transmission is unified for udp protocol, and meets to the data of public network transmissions
Public network User Agreement.By the change to signaling data SDP fields, candidate IP address and port are added to realize network
Address conversion converts IP address and the port of the media stream data, realizes that NAT is passed through.
Person of ordinary skill in the field it is understood that various aspects of the invention can be implemented as system, method or
Program product.Therefore, various aspects of the invention can be with specific implementation is as follows, i.e.,：It is complete hardware embodiment, complete
The embodiment combined in terms of full Software Implementation (including firmware, microcode etc.) or hardware and software, can unite here
Referred to as " circuit ", " module " or " platform ".
Fig. 6 is the structure diagram of the multi-medium data transmission device of one embodiment of the invention.It is described referring to Fig. 6
The multi-medium data transmission device 600 of this embodiment according to the present invention.The multi-medium data transmission device that Fig. 6 is shown
600 be only an example, should not bring any restrictions to the function and use scope of the embodiment of the present invention.
As shown in fig. 6, multi-medium data transmission device 600 is showed in the form of universal computing device.Multi-medium data passes
The component of transfer device 600 can include but is not limited to：At least one processing unit 610, at least one storage unit 620, connection
The bus 630 of different platform component (including storage unit 620 and processing unit 610), display unit 640 etc..
Wherein, storage unit has program stored therein code, and program code can be performed by processing unit 610 so that processing is single
Member 610 perform described in this specification above-mentioned electronic prescription circulation processing method part according to the various exemplary implementations of the present invention
The step of mode.For example, the step of processing unit 610 can perform as shown in fig. 1.
Storage unit 620 can include the readable medium of volatile memory cell form, such as Random Access Storage Unit
(RAM) 6201 and/or cache memory unit 6202, it can further include read-only memory unit (ROM) 6203.
Storage unit 620 can also include program/utility with one group of (at least one) program module 6205
6204, such program module 6205 includes but not limited to：Operating system, one or more application program, other program moulds
Block and program data may include the realization of network environment in each or certain combination in these examples.
Bus 630 can be to represent one or more in a few class bus structures, including storage unit bus or storage
Cell controller, peripheral bus, graphics acceleration port, processing unit use the arbitrary bus structures in a variety of bus structures
Local bus.
Multi-medium data transmission device 600 can also with one or more external equipments 700 (such as keyboard, sensing equipment,
Bluetooth equipment etc.) communication, it can also enable a user to set with what the multi-medium data transmission device 600 interacted with one or more
It is standby to communicate and/or with enabling what the multi-medium data transmission device 600 communicated with one or more of the other computing device
Any equipment (such as router, modem etc.) communication.This communication can pass through input/output (I/O) interface 650
It carries out.Also, multi-medium data transmission device 600 can also by network adapter 660 and one or more network (such as
LAN (LAN), wide area network (WAN) and/or public network, such as internet) communication.Network adapter 660 can be by total
Line 630 communicates with other modules of multi-medium data transmission device 600.It should be understood that although not shown in the drawings, can combine more
Media data transmission equipment 600 uses other hardware and/or software module, including but not limited to：Microcode, device driver,
Redundant processing unit, external disk drive array, RAID system, tape drive and data backup storage platform etc..
The embodiment of the present invention also provides a kind of computer readable storage medium, and for storing program, program is performed reality
The step of method of multi-medium data transmission in existing above-described embodiment.In some possible embodiments, it is of the invention each
A aspect is also implemented as a kind of form of program product, including program code, when program product is transported on the terminal device
During row, program code is used to that terminal device to be made to perform the root described in the above-mentioned electronic prescription circulation processing method part of this specification
The step of according to various illustrative embodiments of the invention.
As it appears from the above, the program of the computer readable storage medium of the embodiment is when being executed, according to the mesh of signaling data
Address change signaling data is marked, the transport protocol of signaling data is converted, so that the internally transport protocol of the data of network transmission
Udp protocol is unified for, and meets public network User Agreement to the data of public network transmissions.By to signaling data SDP words
The change of section adds candidate IP address and port to realize network address translation, converts the IP address of the media stream data
And port, realize that NAT is passed through.
Fig. 7 is the structure diagram of the computer readable storage medium of one embodiment of the invention.Refering to what is shown in Fig. 7, description
The program product 800 for being used to implement the above method according to the embodiment of the present invention, may be used portable compact disc
Read-only memory (CD-ROM) and including program code, and can be run on terminal device, such as PC.However, this
The program product of invention is without being limited thereto, and in this document, readable storage medium storing program for executing can any include or store the tangible of program
Medium, the program can be commanded the either device use or in connection of execution system, device.
The arbitrary combination of one or more readable mediums may be used in program product.Readable medium can be that readable signal is situated between
Matter or readable storage medium storing program for executing.Readable storage medium storing program for executing for example can be but be not limited to electricity, magnetic, optical, electromagnetic, infrared ray or partly lead
System, device or the device of body or arbitrary above combination.More specific example (the non exhaustive row of readable storage medium storing program for executing
Table) include：Electrical connection, portable disc, hard disk, random access memory (RAM), read-only storage with one or more conducting wires
Device (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read only memory (CD-
ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.
Computer readable storage medium can include in a base band or as a carrier wave part propagation data-signal,
In carry readable program code.The data-signal of this propagation may be used diversified forms, including but not limited to electromagnetic signal,
Optical signal or above-mentioned any appropriate combination.Readable storage medium storing program for executing can also be any readable Jie other than readable storage medium storing program for executing
Matter, which can send, propagate either transmit for used by instruction execution system, device or device or and its
The program of combined use.The program code included on readable storage medium storing program for executing can use any appropriate medium to transmit, including but not
It is limited to wireless, wired, optical cable, RF etc. or above-mentioned any appropriate combination.
It can combine to write to perform the program that the present invention operates with the arbitrary of one or more programming languages
Code, programming language include object oriented program language-Java, C++ etc., further include conventional process
Formula programming language-such as " C " language or similar programming language.Program code can be calculated fully in user
It performs in equipment, partly perform on a user device, the software package independent as one performs, partly in user calculating equipment
Upper part performs or is performed in remote computing device or server completely on a remote computing.It is being related to remotely counting
In the situation for calculating equipment, remote computing device can be by the network of any kind, including LAN (LAN) or wide area network
(WAN), be connected to user calculating equipment or, it may be connected to external computing device (such as utilizes ISP
To pass through Internet connection).
The embodiment of the present invention also provides a kind of multi-medium data transport gateway, and Fig. 8 is the multimedia of one embodiment of the invention
The structure diagram of data transmission gateway.Multi-medium data transport gateway 10 includes above-mentioned multi-medium data transport gateway
System.Specifically, multi-medium data transport gateway 10 includes signalling service module 11 and media streaming services module 12.Signaling takes
Business module 11 and media streaming services module 12 can be software or the hardware device with correlation function.Such as believe
It is the software for including softsbc services to enable service module 11, for carrying out the signaling data between public network and internal network
Conversion, registration and signaling data NAT are passed through.Media streaming services module 12 is, for example, to include the software of rtpengine services, is used
It is passed through and transcoding in the NAT for carrying out media stream data.Concrete function about multi-medium data transport gateway 10 is above-mentioned to more
It has been described in detail in the system of media data transmission gateway, details are not described herein again.
Method, system, equipment, storage medium and the gateway of the multi-medium data transmission of the present invention are according to the mesh of signaling data
Address change signaling data is marked, the transport protocol of signaling data is converted, so that the internally transport protocol of the data of network transmission
Udp protocol is unified for, and meets public network User Agreement to the data of public network transmissions.Background system, background server
The data of processing udp protocol are only needed, are achieved that without being transformed for all users of VoIP service support.
By the change to signaling data SDP fields, candidate IP address and port are added to realize network address translation,
IP address and the port of the media stream data are converted, is passed through so as to fulfill NAT, effectively improve public ip address distribution and is carried
High internet security.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (11)
1. a kind of method of multi-medium data transmission, the multi-medium data includes signaling data and media stream data, described
Multi-medium data transmits between public network and internal network, it is characterised in that the method packet of the multi-medium data transmission
Include step：
S11 receives signaling data；
S12 changes signaling data according to the destination address of the signaling data, when the destination address of the signaling data is public
During network, convert the transport protocol of signaling data as public network User Agreement, by the network address of the signaling data and
Port translation is preset public network IP address and first port, when destination address is internal network, converts signaling number
According to transport protocol for udp protocol, be preset internal network IP by the network address of the signaling data and port translation
Address and second port；
Signaling data after change is sent to destination address by S13, and receives the signaling data of destination address return；
Step S11 to S13 is repeated until establishing multimedia transmission connection；
S14, receive media stream data, convert the media stream data IP address and port into preset public network IP address
With first port or preset internal network IP address and second port, by the media stream data after change with being sent to target
Location.
2. the method for multi-medium data transmission as described in claim 1, which is characterized in that
The step S12 includes：
S121, the destination address and source address of signaling data described in certification；
S122, obtain multimedia proxy resources, distributed from multiple alternative port numbers the first port port numbers and
The port numbers of the second port；
S123 changes the SDP fields of the signaling data according to the destination address of the signaling data, add candidate IP address with
And port is public network IP address and first port or internal network IP address and second port；
S124 converts the transport protocol of the signaling data according to the destination address of the signaling data.
3. the method for multi-medium data transmission as claimed in claim 2, which is characterized in that described preset in step S12
IP address of the public network IP address for the first network interface card of multimedia transmission gateway, first network interface card and the public network pair
Connect, the preset internal network IP address for multimedia transmission gateway the second network interface card IP address, second network interface card with
The internal network docking.
4. the method for multi-medium data transmission as claimed in claim 2, which is characterized in that
In step S123, the alternative port numbers quantity of the first port and the alternative port numbers quantity phase of second port
Deng, each time multimedia transmission connection in, be distributed into the port numbers of first port and the port numbers of second port.
5. a kind of system of multi-medium data transmission, the multi-medium data includes signaling data and media stream data, described
Multi-medium data transmits between public network and internal network, it is characterised in that including：
Signalling service module, the signalling service module send signaling data for receiving, to establish multimedia transmission connection, institute
It states signalling service module and signaling data is changed according to the destination address of the signaling data, when the destination address of the signaling data
During for public network, the transport protocol of signaling data is converted as public network User Agreement, by the network of the signaling data
Location and port translation are preset public network IP address and first port, when destination address is internal network, conversion
The transport protocol of signaling data is udp protocol, is preset inside by the network address of the signaling data and port translation
Network ip address and second port；
Media streaming services module, the media streaming services module are used to receive media stream number after multimedia transmission connection is established
According to, convert the media stream data IP address and port into preset public network IP address and first port or it is preset in
Media stream data after change is sent to destination address by portion's network ip address and second port.
6. the system of multi-medium data transmission as claimed in claim 5, which is characterized in that
The system of the multi-medium data transmission includes the first IP address and the second IP address, the preset public network IP
Address is first IP address, and first IP address is used for and the public network communication, the preset internal network
IP address is second IP address, and second IP address is used for and the internal network communication.
7. the system of multi-medium data transmission as claimed in claim 5, which is characterized in that
The signalling service module obtains multimedia proxy resources to the media streaming services module, from multiple alternative port numbers
The port numbers of the middle distribution first port and the port numbers for stating second port, the alternative port numbers quantity of first port with
The alternative port numbers quantity of second port is equal, each time multimedia transmission connection in, be distributed into first port end
The port numbers of slogan and second port.
8. the system of multi-medium data transmission as claimed in claim 5, which is characterized in that
The signalling service module changes the SDP fields of the signaling data, addition according to the destination address of the signaling data
Candidate IP address and port are public network IP address and first port or internal network IP address and second port.
9. a kind of equipment of multi-medium data transmission, which is characterized in that including：
Processor；
Memory, wherein being stored with the executable instruction of the processor；
Wherein, the processor is configured to come any one institute in perform claim requirement 1 to 4 via the execution executable instruction
The step of stating the method for multi-medium data transmission.
10. a kind of computer readable storage medium, for storing program, which is characterized in that described program is performed realization power
Profit requires the step of method that multi-medium data described in any one transmits in 1 to 4.
11. a kind of multi-medium data transport gateway, which is characterized in that multi-medium data transport gateway is included in claim 5 to 8
A kind of system of multi-medium data transmission described in any one.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547474A (en) * | 2018-12-21 | 2019-03-29 | 深圳市创梦天地科技有限公司 | A kind of data transmission method and device |
| CN110290140A (en) * | 2019-06-28 | 2019-09-27 | 腾讯科技（深圳）有限公司 | Multimedia data processing method and device, storage medium, electronic equipment |
| CN113489717A (en) * | 2021-07-02 | 2021-10-08 | 北京飞讯数码科技有限公司 | Internal and external network intercommunication method, device, equipment and storage medium based on SIP protocol |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030018814A1 (en) * | 2001-06-29 | 2003-01-23 | Yung-Chung Kao | Method of letting a single LAN port voice over IP device have network address translation function |
| CN101208935A (en) * | 2005-05-04 | 2008-06-25 | 西门子企业通讯有限责任两合公司 | Method and device for converting an internet protocol address inside a communications network |
| CN103107983A (en) * | 2011-11-09 | 2013-05-15 | 广达电脑股份有限公司 | Data management method of network system and related system thereof |
| CN103227788A (en) * | 2013-04-17 | 2013-07-31 | 广州市和声信息技术有限公司 | Method and system realizing communication between web-based application and SIP equipment |
| CN104717234A (en) * | 2013-12-11 | 2015-06-17 | 中兴通讯股份有限公司 | Enterprise network communication device and communication method |
| CN105049541A (en) * | 2014-04-17 | 2015-11-11 | 财团法人资讯工业策进会 | Network address translation traversal system and method for real-time communications |
| CN107566671A (en) * | 2017-10-12 | 2018-01-09 | 携程旅游信息技术（上海）有限公司 | Network voice communication method and its system, storage medium, electronic equipment |
-
2018
- 2018-01-18 CN CN201810049931.9A patent/CN108234511B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030018814A1 (en) * | 2001-06-29 | 2003-01-23 | Yung-Chung Kao | Method of letting a single LAN port voice over IP device have network address translation function |
| CN101208935A (en) * | 2005-05-04 | 2008-06-25 | 西门子企业通讯有限责任两合公司 | Method and device for converting an internet protocol address inside a communications network |
| CN103107983A (en) * | 2011-11-09 | 2013-05-15 | 广达电脑股份有限公司 | Data management method of network system and related system thereof |
| CN103227788A (en) * | 2013-04-17 | 2013-07-31 | 广州市和声信息技术有限公司 | Method and system realizing communication between web-based application and SIP equipment |
| CN104717234A (en) * | 2013-12-11 | 2015-06-17 | 中兴通讯股份有限公司 | Enterprise network communication device and communication method |
| CN105049541A (en) * | 2014-04-17 | 2015-11-11 | 财团法人资讯工业策进会 | Network address translation traversal system and method for real-time communications |
| CN107566671A (en) * | 2017-10-12 | 2018-01-09 | 携程旅游信息技术（上海）有限公司 | Network voice communication method and its system, storage medium, electronic equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547474A (en) * | 2018-12-21 | 2019-03-29 | 深圳市创梦天地科技有限公司 | A kind of data transmission method and device |
| CN110290140A (en) * | 2019-06-28 | 2019-09-27 | 腾讯科技（深圳）有限公司 | Multimedia data processing method and device, storage medium, electronic equipment |
| CN110290140B (en) * | 2019-06-28 | 2021-09-24 | 腾讯科技（深圳）有限公司 | Multimedia data processing method and device, storage medium and electronic equipment |
| US11522922B2 (en) | 2019-06-28 | 2022-12-06 | Tencent Technology (Shenzhen) Company Limited | Multimedia data processing method and apparatus, storage medium, and electronic device |
| CN113489717A (en) * | 2021-07-02 | 2021-10-08 | 北京飞讯数码科技有限公司 | Internal and external network intercommunication method, device, equipment and storage medium based on SIP protocol |
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|---|---|
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