CN109547163B - Method and device for controlling data transmission rate - Google Patents
Method and device for controlling data transmission rate Download PDFInfo
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- CN109547163B CN109547163B CN201811520042.2A CN201811520042A CN109547163B CN 109547163 B CN109547163 B CN 109547163B CN 201811520042 A CN201811520042 A CN 201811520042A CN 109547163 B CN109547163 B CN 109547163B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
- H04L47/263—Rate modification at the source after receiving feedback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/27—Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
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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
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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Abstract
The application provides a method and a device for controlling data transmission rate, a receiving window value sent by a first terminal is obtained by a streaming media server, and transmitting the receiving window value to a monitoring management platform, the monitoring management platform adopting the receiving window value to set a transmitting window value aiming at the receiving window value, then the monitoring management platform sends the sending window value to the second terminal, the second terminal sends the streaming media data to the first terminal by adopting the sending window value, therefore, the monitoring management platform and the streaming media server which are deployed in the video networking environment are used as a rate control program to realize the video networking protocol-based, the data transmission rate is controlled, so that the receiving end can process data in time, the data response capability of the receiving end is improved, the upper-layer application response capability is improved, and the usability and performance of the product are improved.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a method for controlling a data transmission rate, a device for controlling a data transmission rate, and a computer-readable storage medium.
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 Internet at present, pushes a plurality of Internet applications to high-definition video, and finally realizes no distance in the world and realizes that the distance between people in the world is only the distance of one screen.
At present, in a video networking environment, when a sending end sends data to a receiving end by using a video networking protocol, the sending end does not consider the capability of the receiving end for processing the data, so that the sending end is easy to cause that the receiving end cannot process the data in time and influence an upper application program because the sending end does not consider the capability of the receiving end for processing the data. Therefore, there is a need to control the transmission rate of data in a video networking environment.
Disclosure of Invention
In view of the above problems, embodiments of the present application are proposed to provide a method for controlling a data transmission rate, a device for controlling a data transmission rate, and a computer-readable storage medium, which overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present application discloses a method for controlling a data transmission rate, where the method is applied to a video network, and the video network is communicatively connected to an ethernet network, where the video network includes a monitoring management platform and a streaming media server, and the ethernet network includes a first terminal and a second terminal, and the method includes:
the streaming media server acquires a receiving window value sent by the first terminal;
the streaming media server sends the receiving window value to the monitoring management platform;
the monitoring management platform adopts the receiving window value to set a sending window value aiming at the receiving window value;
the monitoring management platform sends the sending window value to the second terminal;
and the second terminal sends the streaming media data to the first terminal by adopting the sending window value.
Preferably, the streaming media server sends the receiving window value to the monitoring management platform, including:
the streaming media server packages the receiving window value to generate first protocol data aiming at a preset video networking protocol;
and the streaming media server sends the first protocol data to the monitoring management platform.
Preferably, the monitoring management platform, using the receiving window value, before setting a sending window value for the receiving window value, further includes:
and the monitoring management platform analyzes the first protocol data to obtain the receiving window value.
Preferably, the sending, by the second terminal, data to the first terminal by using the sending window value includes:
the second terminal sends the streaming media data matched with the sending window value to the monitoring management platform;
the monitoring management platform encapsulates the streaming media data to generate second protocol data aiming at the preset video networking protocol;
the monitoring management platform sends the second protocol data to the streaming media server;
and the streaming media server sends the second protocol data to the first terminal.
Preferably, the streaming media server sends the second protocol data to the first terminal, and includes:
the streaming media server analyzes the second protocol data to obtain the streaming media data;
and the streaming media server sends the streaming media data to the first terminal.
The application also discloses a data transmission rate's controlling means, the device is applied to in the video networking, the video networking is connected with ethernet communication, wherein, including control management platform and streaming media server in the video networking, the ethernet includes first terminal and second terminal, the device includes:
a receiving window value obtaining module, configured to obtain, by the streaming media server, a receiving window value sent by the first terminal;
a receiving window value sending module, configured to send the receiving window value to the monitoring management platform by the streaming media server;
a sending window value setting module, configured to set, by the monitoring management platform, a sending window value for the receiving window value by using the receiving window value;
a sending window value sending module, configured to send the sending window value to the second terminal by the monitoring management platform;
and the streaming media data sending module is used for sending the streaming media data to the first terminal by the second terminal by adopting the sending window value.
Preferably, the receiving window value transmitting module includes:
the first protocol data generation submodule is used for the streaming media server to package the receiving window value and generate first protocol data aiming at a preset video networking protocol;
and the first protocol data sending submodule is used for sending the first protocol data to the monitoring management platform by the streaming media server.
Preferably, the streaming media data sending module includes:
the streaming media data sending submodule is used for sending the streaming media data matched with the sending window value to the monitoring management platform by the second terminal;
a second protocol data generation submodule, configured to package the streaming media data by the monitoring management platform, and generate second protocol data for the preset video networking protocol;
the video networking protocol data sending submodule is used for sending the second protocol data to the streaming media server by the monitoring management platform;
and the Ethernet protocol data sending submodule is used for sending the second protocol data to the first terminal by the streaming media server.
The application also discloses a device, includes:
one or more processors; and
one or more machine readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform one or more methods of controlling data transmission rates as described above.
The present application also discloses a computer-readable storage medium storing a computer program causing a processor to execute the method of controlling a data transmission rate as described above.
The embodiment of the application has the following advantages:
in the embodiment of the application, the receiving window value sent by the first terminal is obtained through the streaming media server, the receiving window value is sent to the monitoring management platform, the receiving window value is adopted by the monitoring management platform, the sending window value aiming at the receiving window value is set, then the monitoring management platform sends the sending window value to the second terminal, the sending window value is adopted by the second terminal to send streaming media data to the first terminal, and therefore the monitoring management platform and the streaming media server deployed in the video networking environment are used as a rate control program, the video networking protocol is used for controlling the data transmission rate, the receiving end can process data in time, the data response capacity of the receiving end is improved, the upper-layer application response capacity is increased, and the usability and the performance of products are improved.
Drawings
FIG. 1 is a networking schematic of a video network of the present application;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present application;
fig. 3 is a schematic diagram of a hardware architecture of an access switch of the present application;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present application;
FIG. 5 is a flowchart illustrating steps of an embodiment of a method for controlling a data transmission rate according to an embodiment of the present application;
fig. 6 is a block diagram of an embodiment of a control apparatus for a data transmission rate according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
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 application, 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 the traditional Ethernet (Ethernet) to face the potentially huge first 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 application can be mainly classified into 3 types: server, exchanger (including Ethernet protocol conversion gateway), terminal (including various set-top boxes, code board, memory, 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 and may include 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 application: 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.
Example one
Referring to fig. 5, a flowchart of a first step of an embodiment of a method for controlling a data transmission rate according to an embodiment of the present application is shown, where the method is applied to a video network, the video network is communicatively connected to an ethernet network, the video network includes a monitoring management platform and a streaming media server, the ethernet network includes a first terminal and a second terminal, and the method specifically includes the following steps:
in the embodiment of the application, the streaming media server communicates with the monitoring management platform through a video networking protocol, the streaming media server communicates with the first terminal through an internet protocol, and the monitoring management platform communicates with the second terminal through the internet protocol.
The monitoring management platform can be used for converting streaming media data based on an internet protocol into streaming media data based on a video networking protocol, and can also be used for converting request information based on the video networking protocol into request information based on the internet protocol.
Specifically, when the monitoring management platform receives request information sent by the streaming media server through the video networking protocol, the request information can be analyzed and converted into the request information of the internet protocol, and the converted request information is sent to the internet terminal. For example, the receive window value based on the video networking protocol is converted into the receive window value based on the internet protocol.
Specifically, when the monitoring management platform receives streaming media data sent by the internet terminal, the streaming media data can be analyzed and converted into streaming media data based on the video networking protocol.
The streaming media server can be used for converting streaming media data based on the video networking protocol into streaming media data based on the internet protocol, and can also be used for converting request information based on the internet protocol into request information based on the video networking protocol.
Specifically, when the streaming media server receives streaming media data sent by the monitoring management platform through the video networking protocol, the streaming media server can analyze the data, convert the data into streaming media data based on the internet protocol, and send the converted streaming media data to the internet terminal.
Specifically, when the streaming media server receives request information sent by the internet terminal, the information can be parsed and converted into request information based on the video networking protocol. For example, an internet protocol based receive window value is converted to an internet protocol based receive window value.
In a specific implementation, the first terminal and the second terminal may be a server or a user terminal located in a local area network. The server may be a computer device, a cloud, or a computer device group, and the like, and the type of the server is not particularly limited in the embodiment of the present invention.
The user terminal may be a mobile terminal, such as a mobile phone, a tablet computer, a personal digital assistant, a wearable device (such as glasses, a watch, etc.), and the like, which is generally capable of playing audio and video. The operating system of the internet terminal may include Android (Android), IOS, Windows Phone, Windows, and the like, which is not specifically limited in this embodiment of the present application.
In this embodiment, the first terminal may be a receiving end, and the second terminal may be a transmitting end. The first terminal can send the streaming media data to the second terminal through a streaming media server deployed in the video network. The streaming media server may receive streaming media data sent by at least one sending end, and send the streaming media data to at least one receiving end.
In specific implementation, the receiving end can send the receiving window value to the streaming media server according to the capability of receiving data or processing data, and the streaming media server can process the receiving window value and then send the processed receiving window value to the monitoring management platform.
in the embodiment of the application, the monitoring management platform deployed in the video network and the streaming media server can communicate through a video network protocol, and the streaming media server can send the receiving window value to the monitoring management platform, so that the monitoring management platform monitors the transmission rate.
In a preferred embodiment of the present application, step 502 may include the following sub-steps:
substep S11, the streaming media server packages the receiving window value to generate first protocol data;
in this embodiment of the application, the first protocol data is data based on a video networking protocol, and a format of a data frame of the first protocol data may include: frame header, video networking protocol header, and user data packet. And the streaming media server encapsulates the receiving window value sent by the first terminal and converts the request information based on the Internet protocol into first protocol data based on the video networking protocol.
In a specific implementation, the streaming media server may encapsulate the receive window value sent by the receiving end in a header window field of the packet of the video networking protocol, and convert the receive window value based on the internet protocol into the first protocol data based on the video networking protocol.
In sub-step S12, the streaming media server sends the first protocol data to the monitoring management platform.
After the streaming media server completes encapsulation of the receiving window value and generates the first protocol data, the first protocol data may be sent to the monitoring management platform.
in the embodiment of the application, the monitoring management platform can receive and analyze the first protocol data sent by the streaming media data to obtain the receiving window value. The monitoring management platform may then use the receive window value to set a send window value for the receive window value.
In a specific implementation, after receiving the first protocol data, the sending rate control module in the monitoring management platform analyzes the first protocol data to obtain a receiving window value, and then sets the size of the sending window value according to the size of the receiving window value, so that the size of the sending window value is equal to the size of the receiving window value.
in the specific implementation, the monitoring management platform adopts a receiving window value, after the sending window value is set, the sending window value can be sent to the second terminal, so that the second terminal can send the streaming media data according to the sending window value, and the monitoring management platform and the streaming media server deployed in the video networking environment are used as a rate control program to control the data transmission rate between the sending end and the receiving end, so that the receiving end can process data in time, the data response capacity of the receiving end is increased, the upper-layer application response capacity is increased, and the usability and the performance of a product are improved.
And 505, the second terminal sends the streaming media data to the first terminal by adopting the sending window value.
In this embodiment of the application, after receiving the sending window value sent by the monitoring management platform, the second terminal may send streaming media data adapted to the sending window value to the first terminal.
In a preferred embodiment of the present application, step 505 may comprise the following sub-steps:
in the substep S31, the second terminal sends the streaming media data adapted to the sending window value to the monitoring management platform;
in a specific implementation, the sending end sends the adapted streaming media data to the monitoring management platform according to the size of the sending window value, so that the monitoring platform processes the streaming media data.
Substep S32, the monitoring management platform packages the streaming media data to generate second protocol data;
the monitoring management platform can convert the streaming media data based on the internet protocol into the streaming media data based on the video networking protocol, so as to generate second protocol data.
The monitoring management platform sends the second protocol data to the streaming media server in the substep S33;
in a specific implementation, after the monitoring management platform completes the conversion of the streaming media data sent by the sending end, the monitoring management platform can send the second protocol data to the streaming media server through the video networking protocol sending module.
In sub-step S34, the streaming server sends the second protocol data to the first terminal.
And after receiving the second protocol data sent by the monitoring management platform, the streaming media server analyzes the second protocol data to obtain corresponding streaming media data, and then sends the streaming media data to the receiving end.
In the embodiment of the application, the receiving window value sent by the first terminal is obtained through the streaming media server, the receiving window value is sent to the monitoring management platform, the receiving window value is adopted by the monitoring management platform, the sending window value aiming at the receiving window value is set, then the monitoring management platform sends the sending window value to the second terminal, the sending window value is adopted by the second terminal to send streaming media data to the first terminal, and therefore the monitoring management platform and the streaming media server deployed in the video networking environment are used as a rate control program, the video networking protocol is used for controlling the data transmission rate, the receiving end can process data in time, the data response capacity of the receiving end is improved, the upper-layer application response capacity is increased, and the usability and the performance of products are improved.
Example two
Referring to fig. 6, a block diagram of an embodiment of a control apparatus for data transmission rate according to an embodiment of the present application is shown, where the apparatus is applied in a video network, the video network is communicatively connected to an ethernet network, where the video network includes a monitoring management platform and a streaming media server, the ethernet network includes a first terminal and a second terminal, and the apparatus may include the following modules:
a receiving window value obtaining module 601, configured to obtain, by the streaming media server, a receiving window value sent by the first terminal;
a receiving window value sending module 602, configured to send the receiving window value to the monitoring management platform by the streaming media server;
a sending window value setting module 603, configured to set, by the monitoring management platform, a sending window value for the receiving window value by using the receiving window value;
a sending window value sending module 604, configured to send the sending window value to the second terminal by the monitoring management platform;
a streaming media data sending module 605, configured to send, by the second terminal, streaming media data to the first terminal by using the sending window value.
In a preferred embodiment of the present invention, the receiving window value sending module includes:
a first protocol data generation submodule, configured to encapsulate the receiving window value by the streaming media server, and generate first protocol data;
and the first protocol data sending submodule is used for sending the first protocol data to the monitoring management platform by the streaming media server.
In a preferred embodiment of the embodiments of the present invention, the apparatus further comprises:
and the first protocol data analysis module is used for analyzing the first protocol data by the monitoring management platform to obtain the receiving window value.
In a preferred embodiment of the present invention, the streaming media data sending module includes:
the streaming media data sending submodule is used for sending the streaming media data matched with the sending window value to the monitoring management platform by the second terminal;
a second protocol data generation submodule, configured to encapsulate the streaming media data by the monitoring management platform, and generate second protocol data;
the video networking protocol data sending submodule is used for sending the second protocol data to the streaming media server by the monitoring management platform;
and the Ethernet protocol data sending submodule is used for sending the second protocol data to the first terminal by the streaming media server.
In a preferred embodiment of the present invention, the second protocol data transmission submodule includes:
a streaming media data obtaining unit, configured to analyze the second protocol data by the streaming media server to obtain the streaming media data;
and the streaming media data sending unit is used for sending the streaming media data to the first terminal by the streaming media server.
For the embodiment of the control device of the data transmission rate, since it is basically similar to the embodiment of the control method of the data transmission rate, the description is relatively simple, and for the relevant points, refer to the partial description of the embodiment of the control method of the data transmission rate.
The embodiment of the application also discloses a device, which can comprise:
one or more processors; and
one or more machine readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform one or more methods of controlling data transmission rates as described above.
The embodiment of the application also discloses a computer readable storage medium, which stores a computer program for causing a processor to execute the control method of the data transmission rate.
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 of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application 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 application 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 application 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 application. 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 application 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 the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
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 foregoing detailed description is directed to a method for controlling a data transmission rate, a device for controlling a data transmission rate, and a computer-readable storage medium, which are provided by the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the descriptions of the foregoing examples are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, 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 application.
Claims (10)
1. A method for controlling data transmission rate is applied to a video network, wherein the video network is in communication connection with an Ethernet, the video network comprises a monitoring management platform and a streaming media server, the Ethernet comprises a first terminal and a second terminal, and the method comprises the following steps:
the streaming media server acquires a receiving window value sent by the first terminal; the receiving window value is used for representing the capability of the first terminal for receiving data or processing data;
the streaming media server sends the receiving window value to the monitoring management platform; the monitoring management platform is used for monitoring the data transmission rate between the first terminal and the second terminal according to the receiving window value;
the monitoring management platform adopts the receiving window value to set a sending window value aiming at the receiving window value; the size of the send window value is equal to the size of the receive window value;
the monitoring management platform sends the sending window value to the second terminal; the monitoring management platform and the streaming media server are used for controlling the data transmission rate between the first terminal and the second terminal;
and the second terminal sends the streaming media data to the first terminal by adopting the sending window value.
2. The method of claim 1, wherein the streaming media server sends the receive window value to the monitoring management platform, comprising:
the streaming media server packages the receiving window value to generate first protocol data aiming at a preset video networking protocol;
and the streaming media server sends the first protocol data to the monitoring management platform.
3. The method of claim 2, wherein the monitoring management platform, using the receive window value, further comprises, before setting a send window value for the receive window value:
and the monitoring management platform analyzes the first protocol data to obtain the receiving window value.
4. The method of claim 1, wherein the second terminal transmitting data to the first terminal using the transmission window value comprises:
the second terminal sends the streaming media data matched with the sending window value to the monitoring management platform;
the monitoring management platform encapsulates the streaming media data to generate second protocol data aiming at a preset video networking protocol;
the monitoring management platform sends the second protocol data to the streaming media server;
and the streaming media server sends the second protocol data to the first terminal.
5. The method according to claim 4, wherein the streaming server sends the second protocol data to the first terminal, and comprises:
the streaming media server analyzes the second protocol data to obtain the streaming media data;
and the streaming media server sends the streaming media data to the first terminal.
6. A data transmission rate control device is applied to a video network, wherein the video network is in communication connection with an Ethernet, the video network comprises a monitoring management platform and a streaming media server, the Ethernet comprises a first terminal and a second terminal, and the device comprises:
a receiving window value obtaining module, configured to obtain, by the streaming media server, a receiving window value sent by the first terminal; the receiving window value is used for representing the capability of the first terminal for receiving data or processing data;
a receiving window value sending module, configured to send the receiving window value to the monitoring management platform by the streaming media server; the monitoring management platform is used for monitoring the data transmission rate between the first terminal and the second terminal according to the receiving window value;
a sending window value setting module, configured to set, by the monitoring management platform, a sending window value for the receiving window value by using the receiving window value; the size of the send window value is equal to the size of the receive window value;
a sending window value sending module, configured to send the sending window value to the second terminal by the monitoring management platform; the monitoring management platform and the streaming media server are used for controlling the data transmission rate between the first terminal and the second terminal;
and the streaming media data sending module is used for sending the streaming media data to the first terminal by the second terminal by adopting the sending window value.
7. The apparatus of claim 6, wherein the receive window value sending module comprises:
the first protocol data generation submodule is used for the streaming media server to package the receiving window value and generate first protocol data aiming at a preset video networking protocol;
and the first protocol data sending submodule is used for sending the first protocol data to the monitoring management platform by the streaming media server.
8. The apparatus of claim 6, wherein the streaming media data sending module comprises:
the streaming media data sending submodule is used for sending the streaming media data matched with the sending window value to the monitoring management platform by the second terminal;
the second protocol data generation submodule is used for packaging the streaming media data by the monitoring management platform and generating second protocol data aiming at a preset video networking protocol;
the video networking protocol data sending submodule is used for sending the second protocol data to the streaming media server by the monitoring management platform;
and the Ethernet protocol data sending submodule is used for sending the second protocol data to the first terminal by the streaming media server.
9. An apparatus, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform a method of controlling a data transmission rate according to any one of claims 1 to 5.
10. A computer-readable storage medium storing a computer program for causing a processor to execute the method for controlling a data transmission rate according to any one of claims 1 to 5.
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| CN110113382A (en) * | 2019-04-10 | 2019-08-09 | 视联动力信息技术股份有限公司 | A kind of long- distance tabletop control method and device of view networking |
| CN113056008B (en) * | 2021-02-04 | 2023-04-07 | 浙江大华技术股份有限公司 | Data transmission method and device |
| CN113993197B (en) * | 2021-10-26 | 2023-11-03 | 成都亿佰特电子科技有限公司 | Communication method and device of LoRa gateway and node, storage medium and electronic equipment |
| CN115022931B (en) * | 2022-05-27 | 2024-02-06 | 中国电信股份有限公司 | Rate control method and device, computer readable storage medium and electronic equipment |
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| CN107979563B (en) * | 2016-10-21 | 2019-05-17 | 视联动力信息技术股份有限公司 | A kind of information processing method and device based on view networking |
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