CN110768932A - Data transmission method and device - Google Patents
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- CN110768932A CN110768932A CN201810844083.0A CN201810844083A CN110768932A CN 110768932 A CN110768932 A CN 110768932A CN 201810844083 A CN201810844083 A CN 201810844083A CN 110768932 A CN110768932 A CN 110768932A
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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
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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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
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
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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
- H04L65/40—Support for services or applications
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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
- H04L69/08—Protocols for interworking; Protocol conversion
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Abstract
The invention provides a data transmission method and a data transmission device, which are applied to a video network, wherein the video network comprises a video network storage gateway and a terminal which are mutually connected; the video network storage gateway stores multimedia data; the method comprises the following steps: the method comprises the steps that a video networking storage gateway receives a calling request sent by a terminal; the call request includes system information; the method comprises the steps that a video networking storage gateway determines first original multimedia data corresponding to a calling request; the first original multimedia data comprises video networking transmission information; the storage gateway of the video network converts the transmission information of the video network into system information to generate first target multimedia data; and the video network storage gateway sends the first target multimedia data to the terminal. In the embodiment of the invention, the video networking storage gateway can convert the stored multimedia data into the first target multimedia data adaptive to the terminal after receiving the calling request sent by the terminal, and sends the first multimedia data to the terminal, so that the compatibility of the video networking storage gateway to the terminal is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of video networking, in particular to a data transmission method and a data transmission device.
Background
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of Ethernet applications to high-definition video, and high-definition faces.
The Video networking adopts a real-time high-definition Video exchange technology, can integrate required services such as dozens of services of Video, voice, pictures, characters, communication, data and the like On a system platform On a network platform, such as high-definition Video conferences, Video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD (Video On Demand), television mails, personalized recording, intranet (self-office) channels, intelligent Video broadcasting control, information distribution and the like, and realizes high-definition quality Video playing through a television or a computer.
Disclosure of Invention
In order to solve the above problems, the embodiment of the present invention discloses a data transmission method, which is applied to a video network, wherein the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data; the method comprises the following steps:
the video network storage gateway receives a calling request sent by the terminal; the call request includes system information;
the video network storage gateway determines first original multimedia data corresponding to the calling request; the first original multimedia data comprises video networking transmission information;
the video network storage gateway converts the video network transmission information into the system information to generate first target multimedia data;
and the video network storage gateway sends the first target multimedia data to the terminal.
Preferably, the system information comprises system protocol information; the video networking transmission information comprises video networking protocol information; the step that the storage gateway of the video network converts the transmission information of the video network into the system information to generate first target multimedia data comprises the following steps:
converting the video networking protocol information into the system protocol information to generate first intermediate data;
and generating the first target multimedia data according to the first intermediate data.
Preferably, the system information further includes system data format information; the video networking transmission information also comprises video networking data format information; the step of generating the first target multimedia data according to the first intermediate data includes:
and converting the data format information of the video networking of the first intermediate data into the system data format information to generate the first target multimedia data.
Preferably, the method further comprises:
the video network storage gateway acquires second original multimedia data sent by the terminal; the second original multimedia data includes the system information;
the video network storage gateway converts the second original multimedia data into second target multimedia data matched with the video network storage gateway according to the system information;
the video network storage gateway stores the second target multimedia data.
Preferably, the step of converting the second original multimedia data into second target multimedia data matched with the second original multimedia data by the internet of view storage gateway according to the system information includes:
converting the system protocol information into the video networking protocol information to generate second intermediate multimedia data;
and converting the system data format information in the second intermediate multimedia data into the video networking data format information to generate second target multimedia data.
The embodiment of the invention also discloses a data transmission device which is applied to the video network, wherein the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data; the device comprises:
the calling request module is used for receiving a calling request sent by the terminal by the video networking storage gateway; the call request includes system information;
the determining module is used for determining first original multimedia data corresponding to the calling request by the video networking storage gateway; the first original multimedia data comprises video networking transmission information;
the first conversion module is used for converting the video networking transmission information into the system information by the video networking storage gateway to generate first target multimedia data;
and the sending module is used for sending the first target multimedia data to the terminal by the video networking storage gateway.
Preferably, the system information comprises system protocol information; the video networking transmission information comprises video networking protocol information; the first conversion module includes:
the video networking protocol conversion submodule is used for converting the video networking protocol information into the system protocol information and generating first intermediate data;
and the target sub-module is used for generating the first target multimedia data according to the first intermediate data.
Preferably, the system information further includes system data format information; the video networking transmission information also comprises video networking data format information; the target sub-module includes:
and the video networking format conversion unit is used for converting the video networking data format information of the first intermediate data into the system data format information to generate the first target multimedia data.
Preferably, the apparatus further comprises:
the acquisition module is used for acquiring second original multimedia data sent by the terminal by the video networking storage gateway; the second original multimedia data includes the system information;
the second conversion module is used for converting the second original multimedia data into second target multimedia data matched with the second original multimedia data by the video network storage gateway according to the system information;
and the storage module is used for storing the second target multimedia data by the video networking storage gateway.
Preferably, the second conversion module includes:
the system protocol conversion submodule is used for converting the system protocol information into the video networking protocol information and generating second intermediate multimedia data;
and the system format conversion submodule is used for converting the system data format information in the second intermediate multimedia data into the video networking data format information and generating the second target multimedia data.
The embodiment of the invention has the following advantages: after receiving a calling request sent by a terminal, a video network storage gateway determines first original multimedia data corresponding to the calling request, converts video network transmission information in the first original multimedia data into system information, generates first target multimedia data matched with the system information, and sends the first target multimedia data to the terminal, so that the video network storage gateway can convert the multimedia data stored in the video network storage gateway to generate the first target multimedia data matched with the system information of a data receiving terminal, and the compatibility of the video network storage gateway to the data receiving terminal is improved.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a flowchart illustrating steps of a first embodiment of a data transmission method according to the present invention;
FIG. 6 is a flowchart illustrating steps of a second embodiment of a data transmission method;
fig. 7 is a schematic structural diagram of an embodiment of a data transmission apparatus according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of Ethernet applications to high-definition video, and high-definition faces.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network circuit Switching (circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time switching platform, can realize the large-scale high-definition video real-time transmission of the whole network which can not be realized by the Ethernet at present, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of hard disk magnetic head track seeking, the resource consumption only accounts for 20% of the same-grade IP Ethernet, but the concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem which troubles the Ethernet from the structure by the modes of independent service permission and complete isolation of equipment and user data, and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural careless security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node server, access exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, coding board, memory, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and transcoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Referring to fig. 5, a flow chart of steps of a first embodiment of a data transmission method of the present invention is shown; the embodiment of the invention can be applied to the video network, wherein the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data;
the embodiment of the invention specifically comprises the following steps:
In the embodiment of the invention, after receiving a calling request sent by a terminal, a video network storage gateway determines first original multimedia data corresponding to the calling request, converts video network transmission information in the first original multimedia data into system information, generates first target multimedia data matched with the system information, and sends the first target multimedia data to the terminal, so that the video network storage gateway can convert the multimedia data stored in the video network storage gateway to generate the first target multimedia data matched with the system information of a data receiving terminal, thereby improving the compatibility of the video network storage gateway to the data receiving terminal.
Referring to fig. 6, a flow chart of steps of a second embodiment of a data transmission method of the present invention is shown; the embodiment of the invention can be applied to the video network, wherein the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data;
the embodiment of the invention specifically comprises the following steps:
601, the video network storage gateway receives a call request sent by the terminal; the call request includes system information;
and the video network storage gateway receives the call request sent by the terminal in a wired transmission or wireless transmission mode. The call request may include system information of the terminal, different terminals may run different development systems, and different development systems may differ in language, architecture, interface protocol, data format, and the like. The system information may be used to identify a development system run by the terminal.
The terminal may be a communication terminal capable of data transmission in a video network, or an ethernet network.
the calling request may further include multimedia identification information, and the video network storage gateway may determine multimedia data matching the calling request, that is, the first original multimedia data, using the multimedia identification information.
and the video network storage gateway converts the video network transmission information in the first original media data into system information corresponding to the calling request.
In a preferred embodiment of the present invention, the system information includes system protocol information; the video networking transmission information comprises video networking protocol information; step 603 includes:
substep S6031, converting the video networking protocol information into the system protocol information, generating first intermediate data;
the video networking storage gateway converts video networking protocol information in the first original multimedia data, and converts the video networking protocol information into system protocol information, so that first intermediate data is generated. The video networking protocol information can be a communication mode specified by video networking. The system Protocol information may be an ethernet specified communication mode including, but not limited to, HTTP (hypertext Transfer Protocol), Socket, and the like.
And a substep S6032 of generating the first target multimedia data according to the first intermediate data.
And the video network storage gateway generates first target multimedia data which can be directly suitable for the terminal according to the first intermediate data.
In a preferred embodiment of the present invention, the system information further includes system data format information; the video networking transmission information also comprises video networking data format information; the sub-step S6032 may include:
substep S60321 is to convert the internet of view data format information of the first intermediate data into the system data format information, and generate the first target multimedia data.
Because the first original multimedia data comprises the transmission information of the video network and the transmission information of the video network comprises the format information of the video network, namely, the first intermediate data generated by converting the video network protocol information in the first original multimedia data also comprises the format information of the video network data. And converting the data format information of the video networking in the first intermediate data into system data format information so as to generate first target multimedia data matched with the system information. The data format information of the video network is the data format adopted when the data specified by the video network is transmitted in the video network. The system data format information is a data format that can be directly used by the terminal, and includes, but is not limited to, XML (Extensible Markup Language), JSON (JavaScript Object Notation), YAML (YAML Ain't Markup Language, another Markup Language), and the like.
In practical application, the storage gateway of the video networking may convert the system data format information in the first original multimedia data into the data format information of the video networking, and then convert the system protocol information into the protocol information of the video networking, thereby implementing the conversion of the first original multimedia data into the first target multimedia data matched with the terminal.
the video network storage gateway sends the first target multimedia data to the terminal, and the terminal can directly use the first target multimedia data without additionally performing data format conversion and/or transmission protocol conversion on the first target multimedia data.
In a preferred embodiment of the present invention, the data transmission method may further include:
on the other hand, the video network storage gateway can receive second original multimedia data sent by the terminal.
the second original media data is applicable to a system corresponding to the terminal, but not necessarily applicable to the storage gateway of the video networking, and the storage gateway of the video networking may generate second target multimedia data matched with the second original media data according to system information in the second original multimedia data, that is, generate data applicable to the storage gateway of the video networking.
In a preferred embodiment of the present invention, step 606 may comprise:
substep S6061, convert the system protocol information into the internet of things protocol information, generate second intermediate multimedia data;
the video network storage gateway can convert the system protocol information in the second original multimedia data into video network protocol information to generate intermediate multimedia data. The video networking protocol information can be a communication mode specified by video networking. The system protocol information may be an ethernet specified communication mode including, but not limited to, HTTP (hypertext transfer protocol), Socket, and the like.
Substep S6062, converting the system data format information in the second intermediate multimedia data into the internet of things data format information, and generating the second target multimedia data.
The video network storage gateway can convert the system data format information in the second intermediate multimedia data into the video network data format information to generate second target multimedia data suitable for the video network storage gateway. The data format information of the video network is the data format adopted when the data specified by the video network is transmitted in the video network. The system data format information is a data format that can be directly used by the terminal, and includes, but is not limited to, XML (Extensible Markup Language), JSON (JavaScript Object Notation), YAML (YAMLAin't Markup Language, another Markup Language), and the like.
In practical application, the storage gateway of the video networking may convert the system data format information in the second original multimedia data into the data format information of the video networking, and then convert the system protocol information into the protocol information of the video networking, thereby realizing that the second original multimedia data is converted into the second target multimedia data matched with the storage gateway of the video networking.
And storing the second target multimedia data which can be generated by the video networking gateway.
When a call request matched with second target multimedia data is received, the video network gateway can extract and send the second target multimedia data.
In the embodiment of the invention, after receiving a call request sent by a terminal, a video networking storage gateway determines first original multimedia data corresponding to the call request stored by the video networking storage gateway, converts video networking protocol information in the first multimedia data into system protocol information in the call request, and converts video networking data format information in the first multimedia data into system data format information in the call request, so as to generate first target multimedia data adaptive to the terminal, and send the first target multimedia data to the terminal. The video network storage gateway can also receive second original multimedia data sent by the terminal, convert system protocol information in the second original multimedia data into video network protocol information, and convert system data format information in the second original multimedia data into video network data format information, so that second target multimedia data matched with the video network storage gateway is generated, and the second target multimedia data is stored, thereby realizing the addition of a conversion function in the video network storage gateway, enabling the terminal to be free from data conversion when communicating with the video network storage gateway, and improving the compatibility of the video network storage gateway to the terminal.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 7, a schematic structural diagram of an embodiment of a data transmission apparatus of the present invention is shown; the embodiment of the invention can be applied to the video network, wherein the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data;
the embodiment of the invention can comprise the following structures:
a calling request module 701, configured to receive, by the video networking storage gateway, a calling request sent by the terminal; the call request includes system information;
a determining module 702, configured to determine, by the video networking storage gateway, first original multimedia data corresponding to the invocation request; the first original multimedia data comprises video networking transmission information;
a first conversion module 703, configured to convert, by the internet of view storage gateway, the internet of view transmission information into the system information, and generate first target multimedia data;
a sending module 704, configured to send the first target multimedia data to the terminal through the internet of things storage gateway.
In a preferred embodiment of the present invention, the system information includes system protocol information; the video networking transmission information comprises video networking protocol information; the first conversion module 703 may include:
the video networking protocol conversion submodule is used for converting the video networking protocol information into the system protocol information and generating first intermediate data;
and the target sub-module is used for generating the first target multimedia data according to the first intermediate data.
In a preferred embodiment of the present invention, the system information further includes system data format information; the video networking transmission information also comprises video networking data format information; the target sub-module may include:
and the video networking format conversion unit is used for converting the video networking data format information of the first intermediate data into the system data format information to generate the first target multimedia data.
In a preferred embodiment of the present invention, the apparatus may further include:
the acquisition module is used for acquiring second original multimedia data sent by the terminal by the video networking storage gateway; the second original multimedia data includes the system information;
the second conversion module is used for converting the second original multimedia data into second target multimedia data matched with the second original multimedia data by the video network storage gateway according to the system information;
and the storage module is used for storing the second target multimedia data by the video networking storage gateway.
In a preferred embodiment of the present invention, the second conversion module may include:
the system protocol conversion submodule is used for converting the system protocol information into the video networking protocol information and generating second intermediate multimedia data;
and the system format conversion submodule is used for converting the system data format information in the second intermediate multimedia data into the video networking data format information and generating the second target multimedia data.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The data transmission method and apparatus provided by the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A data transmission method is applied to a video network, and is characterized in that the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data; the method comprises the following steps:
the video network storage gateway receives a calling request sent by the terminal; the call request includes system information;
the video network storage gateway determines first original multimedia data corresponding to the calling request; the first original multimedia data comprises video networking transmission information;
the video network storage gateway converts the video network transmission information into the system information to generate first target multimedia data;
and the video network storage gateway sends the first target multimedia data to the terminal.
2. The method of claim 1, wherein the system information comprises system protocol information; the video networking transmission information comprises video networking protocol information; the step that the storage gateway of the video network converts the transmission information of the video network into the system information to generate first target multimedia data comprises the following steps:
converting the video networking protocol information into the system protocol information to generate first intermediate data;
and generating the first target multimedia data according to the first intermediate data.
3. The method of claim 2, wherein the system information further comprises system data format information; the video networking transmission information also comprises video networking data format information; the step of generating the first target multimedia data according to the first intermediate data includes:
and converting the data format information of the video networking of the first intermediate data into the system data format information to generate the first target multimedia data.
4. The method of claim 3, further comprising:
the video network storage gateway acquires second original multimedia data sent by the terminal; the second original multimedia data includes the system information;
the video network storage gateway converts the second original multimedia data into second target multimedia data matched with the video network storage gateway according to the system information;
the video network storage gateway stores the second target multimedia data.
5. The method of claim 4, wherein the step of the internet of view storage gateway converting the second original multimedia data into a second target multimedia data matching itself according to the system information comprises:
converting the system protocol information into the video networking protocol information to generate second intermediate multimedia data;
and converting the system data format information in the second intermediate multimedia data into the video networking data format information to generate second target multimedia data.
6. A data transmission device is applied to a video network, and is characterized in that the video network comprises a video network storage gateway and a terminal which are connected with each other; the video network storage gateway stores multimedia data; the device comprises:
the calling request module is used for receiving a calling request sent by the terminal by the video networking storage gateway; the call request includes system information;
the determining module is used for determining first original multimedia data corresponding to the calling request by the video networking storage gateway; the first original multimedia data comprises video networking transmission information;
the first conversion module is used for converting the video networking transmission information into the system information by the video networking storage gateway to generate first target multimedia data;
and the sending module is used for sending the first target multimedia data to the terminal by the video networking storage gateway.
7. The apparatus of claim 6, wherein the system information comprises system protocol information; the video networking transmission information comprises video networking protocol information; the first conversion module includes:
the video networking protocol conversion submodule is used for converting the video networking protocol information into the system protocol information and generating first intermediate data;
and the target sub-module is used for generating the first target multimedia data according to the first intermediate data.
8. The apparatus of claim 7, wherein the system information further comprises system data format information; the video networking transmission information also comprises video networking data format information; the target sub-module includes:
and the video networking format conversion unit is used for converting the video networking data format information of the first intermediate data into the system data format information to generate the first target multimedia data.
9. The apparatus of claim 8, further comprising:
the acquisition module is used for acquiring second original multimedia data sent by the terminal by the video networking storage gateway; the second original multimedia data includes the system information;
the second conversion module is used for converting the second original multimedia data into second target multimedia data matched with the second original multimedia data by the video network storage gateway according to the system information;
and the storage module is used for storing the second target multimedia data by the video networking storage gateway.
10. The apparatus of claim 9, wherein the second conversion module comprises:
the system protocol conversion submodule is used for converting the system protocol information into the video networking protocol information and generating second intermediate multimedia data;
and the system format conversion submodule is used for converting the system data format information in the second intermediate multimedia data into the video networking data format information and generating the second target multimedia data.
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