CN109873969B - Method for acquiring video data and video networking system - Google Patents
Method for acquiring video data and video networking system Download PDFInfo
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Abstract
The embodiment of the invention provides a video data acquisition method and a video networking system, wherein the method comprises the following steps: the terminal equipment sends a first video acquisition instruction to an instruction conversion server; the instruction conversion server obtains a second video acquisition instruction through conversion and sends the second video acquisition instruction to the sharing server; the sharing server forwards the second video acquisition instruction to the protocol conversion server; the protocol conversion server converts the second video acquisition instruction into a third video acquisition instruction and sends the third video acquisition instruction to the national standard video server; the national standard video server returns the first video data; the protocol conversion server obtains second video data through conversion and sends the second video data to the sharing server; and the sharing server obtains the first video data through conversion and sends the first video data to the terminal equipment. The embodiment of the invention realizes the effect that the terminal equipment checks the video data through the video networking platform by converting the interconnection grid type request signaling into the instruction of the video networking format and requesting the national standard video server to acquire the video data through the video networking.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a method for acquiring video data and a video networking system.
Background
The video networking is an important milestone for network development, is a higher-level form of the Internet, is a real-time network, can realize the real-time transmission of full-network high-definition videos which cannot be realized by the existing Internet, and pushes a plurality of Internet applications to high-definition video.
In the prior art, since the video networking does not support the internet protocol, and the international video is stored in the internet environment, the user cannot check the international video in the internet environment through the video networking platform, so that the video networking is greatly limited in the video checking function, and therefore, how the user checks the international video in the internet environment through the video networking platform is a problem that needs to be solved urgently by technical personnel in the industry.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a method and a video networking system for acquiring video data that overcome or at least partially solve the above problems.
In order to solve the above problem, a first aspect of the embodiments of the present invention discloses a method for acquiring video data, where the method is applied to a video network, and the video network includes: the method comprises the following steps that terminal equipment, an instruction conversion server, a sharing server, a protocol conversion server and a national standard video server which is communicated with the protocol conversion server mutually, and the method comprises the following steps:
the terminal equipment sends a first video acquisition instruction in an interconnected grid mode to the instruction conversion server;
the instruction conversion server analyzes and converts the first video acquisition instruction in the interconnected grid type to obtain a second video acquisition instruction in a video networking format, so that the second acquisition instruction is sent to the sharing server;
the sharing server forwards the second video acquisition instruction to the protocol conversion server, and the protocol conversion server is used for performing protocol conversion on the operation instruction and the data packet;
the protocol conversion server performs protocol conversion on the second video acquisition instruction to obtain a third video acquisition instruction in an interconnected grid mode, and sends the third video acquisition instruction to the national standard video server;
the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction;
the protocol conversion server carries out protocol conversion on the first video data to obtain second video data in a video networking format, and sends the second video data to the sharing server;
the sharing server carries out protocol conversion on the second video data to obtain first video data in an interconnected grid mode, and sends the first video data to the terminal equipment;
and the terminal equipment analyzes the first video data to obtain target video data.
Preferably, the first and second liquid crystal materials are,
the first video acquisition instruction includes: identification, IP address and port number of the target video data;
the method comprises the following steps that the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction, and comprises the following steps:
the international video server locally inquires the target video data according to the target video data identifier;
the international video server packages the target video data to obtain the first video data;
and the international video server returns the first video data to the protocol conversion server.
Preferably, before the step of sending the first video acquisition instruction in the internet format to the instruction conversion server, the method further includes:
and the terminal equipment receives the identification, the IP address and the port number of the target video data through a browser plug-in.
Preferably, the protocol conversion of the second video data by the shared server is performed to obtain first video data in an internet format, and the sending of the first video data to the terminal device includes:
the sharing server analyzes the second video data to obtain target video data;
the sharing server verifies the target video data according to the second video acquisition instruction;
and under the condition that the target video data passes the verification, the sharing server packages the target video data to obtain first video data in an internet format, and sends the first video data to the terminal equipment.
Preferably, the verifying the target video data by the shared server according to the second video acquisition instruction includes:
the sharing server judges whether the target video data is matched with the second video acquisition instruction or not;
if the target video data is matched with the second video acquisition instruction, the sharing server packages the target video data to obtain first video data in an internet format, and sends the first video data to the terminal equipment;
and if the target video data is not matched with the second video acquisition instruction, returning an error prompt to the terminal equipment.
The second aspect of the embodiments of the present invention discloses a video networking system for acquiring video data, wherein the video networking system comprises: terminal equipment, instruction conversion server, sharing server, protocol conversion server and the national standard video server that communicates with the protocol conversion server each other, the video networking system includes:
the first instruction module is used for sending a first video acquisition instruction in an internet grid mode to the instruction conversion server by the terminal equipment;
the second instruction module is used for analyzing and converting the first video acquisition instruction in the interconnected grid type by the instruction conversion server to obtain a second video acquisition instruction in a video networking format, so as to send the second acquisition instruction to the sharing server;
the instruction forwarding module is used for the shared server to forward the second video acquisition instruction to the protocol conversion server, and the protocol conversion service is used for performing protocol conversion on the operation instruction and the data packet;
a third instruction module, configured to perform protocol conversion on the second video acquisition instruction by the protocol conversion server to obtain a third video acquisition instruction in an interconnected grid format, and send the third video acquisition instruction to the national standard video server;
the first returning module is used for returning first video data in an interconnected grid form to the protocol conversion server by the national standard video server according to the third video acquisition instruction;
the second return module is used for the protocol conversion server to perform protocol conversion on the first video data to obtain second video data in a video networking format and send the second video data to the sharing server;
a third returning module, configured to perform protocol conversion on the second video data by the shared server to obtain first video data in an interconnected grid format, and send the first video data to the terminal device;
and the analysis module is used for analyzing the first video data by the terminal equipment to obtain target video data.
Preferably, the first and second liquid crystal materials are,
the first video acquisition instruction includes: identification, IP address and port number of the target video data;
the first return module comprising:
the query submodule is used for the international video server to query the target video data locally according to the target video data identifier;
the packaging submodule is used for packaging the target video data by the international video server to obtain the first video data;
and the first returning submodule is used for returning the first video data to the protocol conversion server by the international video server.
Preferably, before the first instruction module, the method further includes:
and the receiving module is used for receiving the identification, the IP address and the port number of the target video data by the terminal equipment through a browser plug-in.
Preferably, the third returning module includes:
the analysis submodule is used for analyzing the second video data by the shared server to obtain target video data;
the verification submodule is used for verifying the target video data by the shared server according to the second video acquisition instruction;
and the second return submodule is used for packaging the target video data by the shared server to obtain first video data in an internet format under the condition that the target video data passes the verification, and sending the first video data to the terminal equipment.
Preferably, the check submodule includes:
a judging unit, configured to judge, by the shared server, whether the target video data matches the second video acquisition instruction;
a returning unit, configured to, if the target video data matches the second video acquisition instruction, package the target video data by the shared server to obtain first video data in an internet format, and send the first video data to the terminal device;
and the error reporting unit is used for returning an error prompt to the terminal equipment if the target video data is not matched with the second video acquisition instruction.
The embodiment of the invention has the following advantages:
the embodiment of the invention provides a video data acquisition method and a video network system, wherein the method is applied to the video network and comprises the following steps: the terminal equipment sends a first video acquisition instruction in an interconnected grid mode to the instruction conversion server; the instruction conversion server analyzes and converts the first video acquisition instruction in the interconnected grid type to obtain a second video acquisition instruction in a video networking format, so that the second acquisition instruction is sent to the sharing server; the sharing server forwards the second video acquisition instruction to the protocol conversion server, and the protocol conversion server is used for performing protocol conversion on the operation instruction and the data packet; the protocol conversion server performs protocol conversion on the second video acquisition instruction to obtain a third video acquisition instruction in an interconnected grid mode, and sends the third video acquisition instruction to the national standard video server; the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction; the protocol conversion server carries out protocol conversion on the first video data to obtain second video data in a video networking format, and sends the second video data to the sharing server; the sharing server carries out protocol conversion on the second video data to obtain first video data in an interconnected grid mode, and sends the first video data to the terminal equipment; and the terminal equipment analyzes the first video data to obtain target video data. The embodiment of the invention realizes the effect that the terminal equipment checks the video data through the video networking platform by converting the interconnection grid type request signaling into the instruction of the video networking format and requesting the national standard video server to acquire the video data through the video networking.
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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 schematic diagram illustrating a data transmission process for acquiring video data according to the present invention;
FIG. 6 is a flow chart of steps of a method of acquiring video data in accordance with the present invention;
fig. 7 is a block diagram of a video networking system for acquiring video data 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 internet applications to high-definition video, and high-definition faces each other.
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 exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, 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 the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but 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 troubling the internet structurally by the modes of independent service permission control each time, 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 carefree 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 servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, 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 MAC SA of the ethernet protocol 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 decoding 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.
Based on the characteristics of the video network, one of the core concepts of the embodiment of the invention is provided, and the instruction server and the protocol conversion server are responsible for protocol conversion of the video recording instruction according to the protocol of the video network; the protocol conversion server and the sharing server are responsible for protocol conversion of the video data.
In an embodiment of the invention, the video network comprises: the system comprises terminal equipment, an instruction conversion server, a sharing server, a protocol conversion server and a national standard video server which is communicated with the protocol conversion server.
Referring to fig. 5, in the embodiment of the present invention, a terminal device 501, an instruction server 502, a sharing server 503, a protocol conversion server 504, and a national standard video server 505 are connected in communication via the internet. The instruction server 502 and the shared server 503, and the shared server 503 and the protocol conversion server 504 are connected in communication via a video network.
Example one
Referring to fig. 6, a flow chart illustrating steps of an embodiment of a method for acquiring video data according to the present invention is shown, wherein the method is applied to a video network, and the video network comprises: the method comprises the following steps that terminal equipment, an instruction conversion server, a sharing server, a protocol conversion server and a national standard video server which is communicated with the protocol conversion server mutually, and the method comprises the following steps:
In the embodiment of the invention, the terminal equipment can be personal computer equipment, a computer host and mobile terminal equipment in an internet environment. The instruction conversion server is used for carrying out protocol conversion on the request and the instruction of the Internet protocol to obtain a format which can be transmitted and identified in a video networking environment, the instruction conversion server can be a video networking Mserver, the server is provided with two interfaces of a video networking and an Internet, and the instruction conversion server can be used as the instruction conversion server as long as the request and the instruction of the Internet protocol can be converted. In the embodiment of the invention, the Mserver is specially used for carrying out protocol conversion on the request and the instruction of the Internet protocol, so that the conversion efficiency of the first video acquisition instruction can be improved, and the overall efficiency of acquiring international video data is improved. The first video acquisition instruction in the internet format may be a request signaling based on GB28181 (requirements for information transmission, exchange, and control technology of security and protection video monitoring networking system).
Preferably, before the step 601, the method further includes:
and the terminal equipment receives the identification, the IP address and the port number of the target video data through a browser plug-in.
In the embodiment of the present invention, target video data acquisition information input by an operator may be received in the terminal device in a form of a plug-in, where the target video data acquisition information at least includes basic data information conforming to GB 28181. The basic data information includes: identification, IP address and port number of the target video data.
In the embodiment of the present invention, the instruction conversion server analyzes the first video acquisition instruction following the internet format, and acquires basic data information conforming to GB28181 in the first video, where the data at least includes an identifier, an IP address, and a port number of the national standard video. And generating a second video acquisition instruction which can be identified and transmitted in a video networking environment according to the first video acquisition instruction. The second video recording acquisition instruction comprises basic data information which accords with GB28181 in the first video recording acquisition instruction. The shared server is used for transmitting the data instruction of the video networking and is also used for carrying out protocol conversion on the data packet in the video networking format to obtain the data packet of the Internet protocol.
In an embodiment of the present invention, the protocol conversion server is configured to establish a communication connection between a device in the video networking environment and a device in the internet environment. And the sharing server forwards the second video acquisition instruction to the protocol conversion server so as to acquire a target video data packet from a national standard video server.
In the embodiment of the present invention, after receiving the second video acquisition instruction, the protocol conversion server generates a third video acquisition instruction in an interconnected grid format according to GB28181 according to the basic data information according to GB28181 in the second video acquisition instruction, and sends the second video acquisition instruction to the national standard video server according to the IP address in the second video acquisition instruction.
In the embodiment of the invention, the national standard video server can locally inquire the target video data according to the identification of the target video. The national standard video server can only read the request signaling conforming to GB28181, so the third video acquisition instruction generated by the protocol conversion server needs to conform to the format requirement of GB 28181. And the national standard video server generates the first video data in an interconnected grid mode according to the target video data and returns the first video data to the video networking equipment. Because the video networking device cannot directly read the first video data, the first video data needs to be returned to the protocol conversion server for protocol conversion.
Preferably, the step 605 may include:
the first video acquisition instruction includes: identification, IP address and port number of the target video data; the international video server locally inquires the target video data according to the target video data identifier; the international video server packages the target video data to obtain the first video data; and the international video server returns the first video data to the protocol conversion server.
In the embodiment of the invention, the national standard video server generates the first video data after acquiring the target video data according to the data identifier, and returns the first video data to the sharing server through the protocol conversion server special for data protocol conversion.
The efficiency of data transmission can be greatly improved by receiving data from the internet environment through a protocol conversion server dedicated to protocol conversion.
In the embodiment of the present invention, the protocol conversion server splits the first video data, repacks the first video data into the video networking packet and the second video data of the packet header, and returns the second video data to the sharing server. The sharing server is also provided with two interfaces of a video network and an internet, and can convert the second video data into a data packet in an internet grid form by a protocol and return the data packet to the terminal equipment. It can be understood that if the performance of the shared server is strong enough, the shared server can be used as the instruction conversion server, but considering that the throughput of the video networking data is too large, the instruction conversion server special for the equipment can effectively improve the national standard video acquisition efficiency.
In the embodiment of the present invention, the sharing server performs protocol conversion on the second video data in the video networking format to obtain the first video data in the internet format, and directly sends the first video data to the terminal device.
Preferably, the step 607 may include:
the sharing server analyzes the second video data to obtain target video data; the sharing server checks the target video data according to the second video acquisition request; and under the condition that the target video data passes the verification, the sharing server packages the target video data to obtain first video data in an internet format, and sends the first video data to the terminal equipment. The sharing server judges whether the target video data is matched with the second video acquisition instruction or not; if the target video data is matched with the second video acquisition instruction, the sharing server encapsulates the target video data to obtain second video data in an interconnected grid mode, and sends the second video data to the terminal equipment; and if the target video data is not matched with the first video acquisition instruction, returning an error prompt to the terminal equipment.
In this embodiment of the present invention, the shared server parses the second video data, and verifies the target video data according to the target video data identifier in the stored second video acquisition instruction. And if the verification is passed, repackaging the target video data to obtain the first video data in the video networking format and sending the first video data to the terminal equipment. And if the target video data is not matched with the second video data instruction, judging that the target video data is wrong, stopping the return process, and returning an error prompt to the terminal equipment, wherein the error prompt can comprise a stop reason.
In the embodiment of the present invention, the terminal device may analyze the first video to obtain the target video data, and the target video data may be displayed through streaming media software or player software of the terminal device.
The embodiment of the invention provides a video data acquisition method and a video networking system, wherein the method is applied to the video networking, and comprises the following steps: the terminal equipment sends a first video acquisition instruction in an interconnected grid mode to the instruction conversion server; the instruction conversion server analyzes and converts the first video acquisition instruction in the interconnected grid type to obtain a second video acquisition instruction in a video networking format, so that the second acquisition instruction is sent to the sharing server; the sharing server forwards the second video acquisition instruction to the protocol conversion server, and the protocol conversion server is used for performing protocol conversion on the operation instruction and the data packet; the protocol conversion server performs protocol conversion on the second video acquisition instruction to obtain a third video acquisition instruction in an interconnected grid mode, and sends the third video acquisition instruction to the national standard video server; the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction; the protocol conversion server carries out protocol conversion on the first video data to obtain second video data in a video networking format, and sends the second video data to the sharing server; the sharing server carries out protocol conversion on the second video data to obtain first video data in an interconnected grid mode, and sends the first video data to the terminal equipment; and the terminal equipment analyzes the first video data to obtain target video data. The embodiment of the invention realizes the effect that the terminal equipment checks the video data through the video networking platform by converting the interconnection grid type request signaling into the instruction of the video networking format and requesting the national standard video server to acquire the video data through the video networking.
Example two
Referring to fig. 7, a block diagram of an embodiment of a video networking system 700 for acquiring video data according to the present invention is shown, wherein the video networking system comprises: terminal equipment, instruction conversion server, sharing server, protocol conversion server and the national standard video server that communicates with the protocol conversion server each other, the video networking system includes:
a first instruction module 701, configured to send a first video acquisition instruction in an internet format to the instruction conversion server by the terminal device.
Preferably, before the first instruction module 701, the method may further include: and the receiving module is used for receiving the identification, the IP address and the port number of the target video data by the terminal equipment through a browser plug-in.
A second instruction module 702, configured to the instruction conversion server analyze and convert the first video acquisition instruction in the internet format to obtain a second video acquisition instruction in a video networking format, so as to send the second acquisition instruction to the sharing server.
An instruction forwarding module 703 is configured to forward, by the shared server, the second video acquisition instruction to the protocol conversion server, where the protocol conversion service is configured to perform protocol conversion on the operation instruction and the data packet.
A third instruction module 704, configured to perform protocol conversion on the second video acquisition instruction by the protocol conversion server to obtain a third video acquisition instruction in an interconnected grid manner, and send the third video acquisition instruction to the national standard video server.
A first returning module 705, configured to return, by the national standard video server, the first video data in the internet format to the protocol conversion server according to the third video acquisition instruction.
Preferably, the first video recording acquisition instruction includes: identification, IP address and port number of the target video data; the first returning module 705 includes: the query submodule is used for the international video server to query the target video data locally according to the target video data identifier; the packaging submodule is used for packaging the target video data by the international video server to obtain the first video data; and the first returning submodule is used for returning the first video data to the protocol conversion server by the international video server.
A second returning module 706, configured to perform protocol conversion on the first video data by the protocol conversion server to obtain second video data in a video networking format, and send the second video data to the sharing server.
A third returning module 707, configured to perform protocol conversion on the second video data by the shared server to obtain first video data in an internet format, and send the first video data to the terminal device.
Preferably, the third returning 707 module may include:
the analysis submodule is used for analyzing the second video data by the shared server to obtain target video data; the verification submodule is used for verifying the target video data by the shared server according to the second video acquisition instruction; and the second return submodule is used for packaging the target video data by the shared server to obtain first video data in an internet format under the condition that the target video data passes the verification, and sending the first video data to the terminal equipment. The checking submodule comprises a judging unit and a checking unit, wherein the judging unit is used for judging whether the target video data is matched with the second video acquisition instruction by the shared server; a returning unit, configured to, if the target video data matches the second video acquisition instruction, package the target video data by the shared server to obtain first video data in an internet format, and send the first video data to the terminal device; and the error reporting unit is used for returning an error prompt to the terminal equipment if the target video data is not matched with the second video acquisition instruction.
An analyzing module 708, configured to analyze the first video data by the terminal device to obtain target video data.
The embodiment of the invention provides a video networking system for acquiring video data, which comprises: terminal equipment, instruction conversion server, sharing server, protocol conversion server and the national standard video server that communicates with the protocol conversion server each other, the video networking system includes: the first instruction module is used for sending a first video acquisition instruction in an internet grid mode to the instruction conversion server by the terminal equipment; the second instruction module is used for analyzing and converting the first video acquisition instruction in the interconnected grid type by the instruction conversion server to obtain a second video acquisition instruction in a video networking format, so as to send the second acquisition instruction to the sharing server; the instruction forwarding module is used for the shared server to forward the second video acquisition instruction to the protocol conversion server, and the protocol conversion service is used for performing protocol conversion on the operation instruction and the data packet; a third instruction module, configured to perform protocol conversion on the second video acquisition instruction by the protocol conversion server to obtain a third video acquisition instruction in an interconnected grid format, and send the third video acquisition instruction to the national standard video server; the first returning module is used for returning first video data in an interconnected grid form to the protocol conversion server by the national standard video server according to the third video acquisition instruction; the second return module is used for the protocol conversion server to perform protocol conversion on the first video data to obtain second video data in a video networking format and send the second video data to the sharing server; a third returning module, configured to perform protocol conversion on the second video data by the shared server to obtain first video data in an interconnected grid format, and send the first video data to the terminal device; and the analysis module is used for analyzing the first video data by the terminal equipment to obtain target video data. The embodiment of the invention realizes the effect that the terminal equipment checks the video data through the video networking platform by converting the interconnection grid type request signaling into the instruction of the video networking format and requesting the national standard video server to acquire the video data through the video networking.
For the embodiment of the video networking system, since it is basically similar to the embodiment of the method, the description is simple, and for relevant points, reference may be made to part of the description of the embodiment of the method.
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.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, a video networking system, or a 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 a visual networking system 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 video network systems 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 method for acquiring video data and the video networking system provided by the invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the 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 (8)
1. A method for acquiring video data is applied to a video network, and the video network comprises the following steps: the method comprises the following steps that terminal equipment, an instruction conversion server, a sharing server, a protocol conversion server and a national standard video server which is communicated with the protocol conversion server mutually, and the method comprises the following steps:
the terminal equipment sends a first video acquisition instruction in an interconnected grid mode to the instruction conversion server;
the instruction conversion server analyzes and converts the first video acquisition instruction in the interconnected grid mode to obtain a second video acquisition instruction in a video networking format, so that the second video acquisition instruction is sent to the sharing server;
the sharing server forwards the second video acquisition instruction to the protocol conversion server, and the protocol conversion server is used for performing protocol conversion on the operation instruction and the data packet;
the protocol conversion server performs protocol conversion on the second video acquisition instruction to obtain a third video acquisition instruction in an interconnected grid mode, and sends the third video acquisition instruction to the national standard video server;
the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction;
the protocol conversion server carries out protocol conversion on the first video data to obtain second video data in a video networking format, and sends the second video data to the sharing server;
the sharing server carries out protocol conversion on the second video data to obtain first video data in an interconnected grid mode, and sends the first video data to the terminal equipment;
the terminal equipment analyzes the first video data to obtain target video data;
the first video acquisition instruction includes: the identification, IP address and port number of the target video data;
the method comprises the following steps that the national standard video server returns first video data in an interconnected grid form to the protocol conversion server according to the third video acquisition instruction, and comprises the following steps:
the national standard video server inquires the target video data locally according to the target video data identification;
the national standard video server packages the target video data to obtain the first video data;
and the national standard video server returns the first video data to the protocol conversion server.
2. The method according to claim 1, wherein before the step of sending the first video acquisition instruction in the internet format to the instruction conversion server, the terminal device further comprises:
and the terminal equipment receives the identification, the IP address and the port number of the target video data through a browser plug-in.
3. The method of claim 1, wherein the sharing server performs protocol conversion on the second video data to obtain first video data in an interconnected format, and sends the first video data to the terminal device, and the method comprises:
the sharing server analyzes the second video data to obtain target video data;
the sharing server verifies the target video data according to the second video acquisition instruction;
and under the condition that the target video data passes the verification, the sharing server packages the target video data to obtain first video data in an internet format, and sends the first video data to the terminal equipment.
4. The method of claim 3, wherein the verifying the target video data by the shared server according to the second video capture instruction comprises:
the sharing server judges whether the target video data is matched with the second video acquisition instruction or not;
if the target video data is matched with the second video acquisition instruction, the sharing server packages the target video data to obtain first video data in an internet format, and sends the first video data to the terminal equipment;
and if the target video data is not matched with the second video acquisition instruction, returning an error prompt to the terminal equipment.
5. A video networking system for obtaining video data, the video networking system comprising: terminal equipment, instruction conversion server, sharing server, protocol conversion server and the national standard video server that communicates with the protocol conversion server each other, the video networking system includes:
the first instruction module is used for sending a first video acquisition instruction in an internet grid mode to the instruction conversion server by the terminal equipment;
the second instruction module is used for analyzing and converting the first video acquisition instruction in the interconnected grid type by the instruction conversion server to obtain a second video acquisition instruction in a video networking format, so as to send the second video acquisition instruction to the sharing server;
the instruction forwarding module is used for the shared server to forward the second video acquisition instruction to the protocol conversion server, and the protocol conversion service is used for performing protocol conversion on the operation instruction and the data packet;
a third instruction module, configured to perform protocol conversion on the second video acquisition instruction by the protocol conversion server to obtain a third video acquisition instruction in an interconnected grid format, and send the third video acquisition instruction to the national standard video server;
the first returning module is used for returning first video data in an interconnected grid form to the protocol conversion server by the national standard video server according to the third video acquisition instruction;
the second return module is used for the protocol conversion server to perform protocol conversion on the first video data to obtain second video data in a video networking format and send the second video data to the sharing server;
a third returning module, configured to perform protocol conversion on the second video data by the shared server to obtain first video data in an interconnected grid format, and send the first video data to the terminal device;
the analysis module is used for analyzing the first video data by the terminal equipment to obtain target video data;
the first video acquisition instruction includes: the identification, IP address and port number of the target video data;
the first return module comprising:
the query submodule is used for the national standard video server to query the target video data locally according to the target video data identification;
the encapsulation submodule is used for encapsulating the target video data by the national standard video server to obtain the first video data;
and the first return submodule is used for returning the first video data to the protocol conversion server by the national standard video server.
6. The video networking system of claim 5, wherein the first instruction module further comprises, before:
and the receiving module is used for receiving the identification, the IP address and the port number of the target video data by the terminal equipment through a browser plug-in.
7. The video networking system of claim 5, wherein the third return module comprises:
the analysis submodule is used for analyzing the second video data by the shared server to obtain target video data;
the verification submodule is used for verifying the target video data by the shared server according to the second video acquisition instruction;
and the second return submodule is used for packaging the target video data by the shared server to obtain first video data in an internet format under the condition that the target video data passes the verification, and sending the first video data to the terminal equipment.
8. The video networking system of claim 7, wherein the verification submodule comprises:
a judging unit, configured to judge, by the shared server, whether the target video data matches the second video acquisition instruction;
a returning unit, configured to, if the target video data matches the second video acquisition instruction, package the target video data by the shared server to obtain first video data in an internet format, and send the first video data to the terminal device;
and the error reporting unit is used for returning an error prompt to the terminal equipment if the target video data is not matched with the second video acquisition instruction.
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