CN110830826A - Video transcoding equipment scheduling method and system - Google Patents
Video transcoding equipment scheduling method and system Download PDFInfo
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
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- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H04L65/75—Media network packet handling
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
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Abstract
The invention discloses a video transcoding device scheduling method and system, which are applied to a video network. The method comprises the steps of obtaining an information list of video transcoding equipment; acquiring running state information of each video transcoding device based on the identification information of each video transcoding device stored in the list; calculating the resource occupancy rate of each video transcoding device according to the running state information of each video transcoding device; and processing the video transcoding request by the video transcoding device with the lowest scheduling resource occupancy rate. The method and the device have the advantages that the running state information of each video transcoding device is obtained based on the identification information of each video transcoding device stored in the video transcoding device information list, the resource occupancy rate of each video transcoding device is calculated according to the running state information, the video transcoding device with the lowest resource occupancy rate is scheduled to process the video transcoding request, the resource occupancy of each video transcoding device is uniformly managed, the resource occupancy rate of each video transcoding device is controlled, the resource occupancy rate of each video transcoding device is balanced, and the video stream transcoding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a method and a system for scheduling video transcoding equipment.
Background
With the continuous development of mobile video services, mobile phone terminals are increasingly used for watching videos, so that the video streams needing transcoding are multiplied, a single video transcoding device cannot meet the existing transcoding requirement, and a plurality of video transcoding devices are required to work cooperatively to meet the transcoding requirement on a large number of video streams. This creates a resource scheduling problem for many video transcoding devices, and currently, there is no scheduling scheme available for the scheduling of video transcoding devices.
Disclosure of Invention
The invention mainly aims to provide a method and a system for scheduling video transcoding equipment so as to realize resource scheduling of a plurality of video transcoding equipment.
The invention is realized by the following technical scheme:
a scheduling method of a video transcoding device, wherein the video transcoding device is applied to a video network, and the method comprises the following steps:
acquiring an information list of video transcoding equipment; the video transcoding equipment information list records identification information of each video transcoding equipment;
acquiring running state information of each video transcoding device based on the identification information of each video transcoding device;
calculating the resource occupancy rate of each video transcoding device according to the running state information of each video transcoding device;
and when a video transcoding request is received, scheduling the video transcoding equipment with the lowest resource occupancy rate to process the video transcoding request.
Further, the video transcoding request has a corresponding priority, and the step of processing the video transcoding request by the video transcoding device with the lowest scheduling resource occupancy rate includes:
receiving a video stream transcoding request with the highest current priority;
and scheduling the video transcoding equipment with the lowest current resource occupancy rate to process the video stream transcoding request with the highest current priority.
Further, the step of obtaining the video transcoding device information list includes:
receiving registration requests containing respective identification information sent by each video transcoding device;
and storing the identification information in the registration request into the video transcoding equipment information list.
Further, the method is executed by a video transcoding device scheduling server, and each video transcoding device is arranged in a distributed mode and is connected and communicated with the video transcoding device scheduling server through a video network.
Further, the video transcoding device scheduling server is provided with a software development kit for executing the method.
A video transcoding device scheduling system is applied to a video network and comprises a video transcoding device scheduling server and a plurality of video transcoding devices connected with the video transcoding device scheduling server;
the video transcoding device scheduling server comprises:
the video transcoding equipment information list acquisition module is used for acquiring a video transcoding equipment information list; the video transcoding equipment information list records identification information of each video transcoding equipment;
the video transcoding equipment running state information acquisition module is used for acquiring the running state information of each video transcoding equipment based on the identification information of each video transcoding equipment;
the video transcoding equipment resource occupancy rate calculating module is used for calculating the resource occupancy rate of each video transcoding equipment according to the running state information of each video transcoding equipment;
and the video transcoding equipment scheduling module is used for scheduling the video transcoding equipment with the lowest resource occupancy rate to process the video transcoding request when the video transcoding request is received.
Further, the video transcoding request has a corresponding priority, and the video transcoding device scheduling module includes:
the video stream transcoding request receiving submodule is used for receiving a video stream transcoding request with the highest current priority;
and the video transcoding equipment scheduling submodule is used for scheduling the video transcoding equipment with the lowest current resource occupancy rate to process the video streaming transcoding request with the highest current priority.
Further, the video transcoding device information list obtaining module includes:
the registration request receiving module is used for receiving registration requests which are sent by all the video transcoding devices and contain respective identification information;
and the identification information storage module is used for storing the identification information in the registration request into the video transcoding equipment information list.
Furthermore, all the video transcoding devices are arranged in a distributed mode and are connected and communicated with the video transcoding device scheduling server through a video network.
Further, the video transcoding device scheduling server is provided with a software development kit for executing the method.
Compared with the prior art, the video transcoding equipment scheduling method and the video transcoding equipment scheduling system provided by the invention have the advantages that the video transcoding equipment scheduling server is used for obtaining the video transcoding equipment information list, the running state information of each video transcoding equipment is obtained based on the identification information of each video transcoding equipment stored in the list, the resource occupancy rate of each video transcoding equipment is calculated according to the running state information, the video transcoding equipment with the lowest resource occupancy rate is scheduled according to the resource occupancy rate of each video transcoding equipment to process the video transcoding request, the resource occupancy rate of each video transcoding equipment is uniformly managed, the resource occupancy rate of each video transcoding equipment is controlled, the resource occupancy rate of each video transcoding equipment is balanced, and the video transcoding efficiency is improved.
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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 main flow chart of a scheduling method of a video transcoding device according to a first embodiment of the present invention;
fig. 6 is a schematic flowchart of step D in the scheduling method of the video transcoding device;
fig. 7 is a schematic flowchart of step a in the scheduling method of the video transcoding device;
fig. 8 is a schematic diagram illustrating logical relationships among modules of a scheduling system of a video transcoding device and connection relationships with the video transcoding device according to a second embodiment of the present invention;
fig. 9 is a schematic diagram illustrating the composition of a video transcoding device scheduling module in the video transcoding device scheduling system;
fig. 10 is a schematic diagram illustrating the composition principle of a video transcoding device information list acquisition module in the video transcoding device scheduling system;
fig. 11 is a schematic diagram illustrating the components and the operation principle of a scheduling system for video transcoding devices according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments and the accompanying drawings.
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 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.
The 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 incoming data packet of the CPU module 304 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 308 is configured by the CPU module 304, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MACSA of the ethernet coordination gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and 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 above-mentioned characteristics of the video network, one of the core concepts of the embodiments of the present invention is presented. With reference to fig. 5 and fig. 8, a video transcoding device scheduling method provided by a first embodiment of the present invention is a method for scheduling a video transcoding device in a video network, where the method is applied in the video network, and includes the following steps:
step A: acquiring an information list of video transcoding equipment; the video transcoding device information list records identification information of each video transcoding device 2.
And B: and acquiring the running state information of each video transcoding device 2 based on the identification information of each video transcoding device 2. The identification information is an identification of the video transcoding devices 2, each video transcoding device 2 has unique identification information, and meanwhile, each video transcoding device 2 with unique identification information can make clear of each video transcoding device 2 through the identification information, so that the running state information of the video transcoding device 2 corresponding to each identification information is obtained. The identification information may be an identification code, a network address, a physical address, etc. of the video transcoding device 2.
And C: and calculating the resource occupancy rate of each video transcoding device 2 according to the running state information of each video transcoding device 2. Like a computer or other like devices, the operation state information of the video transcoding device 2 also includes resource occupancy information of the video transcoding device 2, and the resource occupancy rate of the video transcoding device 2 can be calculated through the operation state information.
Step D: and when the video transcoding request is received, the video transcoding device 2 with the lowest scheduling resource occupancy rate processes the video transcoding request. And scheduling the video transcoding equipment with the lowest current resource occupancy rate to process the video transcoding request every time, so that the resource occupancy rates of the video transcoding equipment 2 can be balanced, the resource occupancy rates of the video transcoding equipment 2 with higher resource occupancy rates can be reduced, the resource occupancy rates of the video transcoding equipment 2 with lower resource occupancy rates can be increased, the resource occupancy rates of the video transcoding equipment 2 can be balanced, the video transcoding equipment 2 can work in the optimal load state, and the video stream transcoding efficiency can be improved.
As shown in fig. 6, in this embodiment, the video transcoding request has a corresponding priority, and the step of scheduling the video transcoding device 2 with the lowest resource occupancy to process the video transcoding request includes:
step D1: receiving a video stream transcoding request with the highest current priority;
step D2: and scheduling the video transcoding device 2 with the lowest current resource occupancy rate to process the video stream transcoding request with the highest current priority.
Thus, while resource occupation of each video transcoding device 2 is balanced to the maximum, priority processing of a video stream transcoding request with a higher priority processing level is also considered.
As shown in fig. 7, in this embodiment, the step of obtaining the video transcoding device information list includes:
step A1: receiving registration requests containing respective identification information sent by each video transcoding device 2;
step A2: and storing the identification information in the registration request into the video transcoding equipment information list.
The registration request may include other information of the video transcoding apparatus 2, such as a hardware version, a software version, and the like, in addition to the identification information of the video transcoding apparatus 2.
The scheduling method provided by the invention is executed by the video transcoding equipment scheduling server, and each video transcoding equipment is arranged in a distributed mode and is connected and communicated with the video transcoding equipment scheduling server through the video networking. The video transcoding equipment scheduling server is provided with a software development kit for executing the scheduling method provided by the invention.
As shown in fig. 8, based on the above method, a second embodiment of the present invention provides a video transcoding device scheduling system, where the video transcoding device 2 is applied in a video network, and the system is applied in the video network. The system comprises a video transcoding device scheduling server 1 and a plurality of video transcoding devices 2 connected with the video transcoding device scheduling server 1. Wherein:
the video transcoding device scheduling server 1 includes:
the video transcoding equipment information list acquiring module 11 is used for acquiring a video transcoding equipment information list; the video transcoding equipment information list records identification information of each video transcoding equipment 2;
the video transcoding device operating state information acquiring module 12 is configured to acquire operating state information of each video transcoding device 2 based on the identification information of each video transcoding device 2;
the video transcoding equipment resource occupancy rate calculating module 13 is used for calculating the resource occupancy rate of each video transcoding equipment 2 according to the running state information of each video transcoding equipment 2;
and the video transcoding device scheduling module 14 is configured to schedule the video transcoding device 2 with the lowest resource occupancy rate to process the video transcoding request when the video transcoding request is received.
As shown in fig. 9, in this embodiment, the video transcoding request has a corresponding priority, and the video transcoding device scheduling module 14 includes:
the video stream transcoding request receiving submodule 141 is configured to receive a video stream transcoding request with the highest current priority;
and the video transcoding device scheduling submodule 142 is configured to schedule the video transcoding device 2 with the lowest current resource occupancy rate to process the video stream transcoding request with the highest current priority.
As shown in fig. 10, in this embodiment, the video transcoding device information list obtaining module 11 includes:
a registration request receiving module 111, configured to receive registration requests that include respective identification information and are sent by each video transcoding device 2;
and the identification information storage module 112 is used for storing the identification information in the registration request into the video transcoding device information list.
And each video transcoding device is arranged in a distributed mode and is connected with the video transcoding device scheduling server through the video network for communication. And the video transcoding equipment scheduling server is provided with a software development kit for executing the scheduling work.
As shown in fig. 11, after processing the video stream transcoding request, the video transcoding device 2 may send the obtained transcoded video to the user terminal 3, and the video transcoding device scheduling server 1 may provide a scheduling service in the form of an SDK (Software development Kit), and the SDK provided by the video transcoding device scheduling server 1 may be integrated in the user terminal 3.
The invention integrates the single video transcoding equipment 2 into a video transcoding equipment 2 cluster through a registration mechanism and a scheduling algorithm, and provides video transcoding service to the outside in a unified way. When the video transcoding service is provided, the invention coordinates and manages a plurality of video transcoding devices 2 simultaneously to balance the resource occupation of each video transcoding device 2, so that the load (namely the resource occupation) of each video transcoding device 2 is controllable to adapt to the current requirements of a large number of batch video transcoding, and when the transcoding service needs to be provided, the video transcoding device scheduling server 1 selects the optimal video transcoding device 2 (namely the video transcoding device 2 with the lowest resource occupancy rate) to provide the service, thereby improving the transcoding service efficiency and capacity. For the apparatus embodiment, since it is basically similar to the method embodiment, it is described relatively simply, and for the relevant points, refer to the partial description of the method embodiment. The modules of the video transcoding device dispatch server 1 in the system are used for executing the steps in the method, and the specific working principle of each module can refer to the description of each step in 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.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The foregoing describes in detail a method and system for scheduling a video transcoding device according to the present invention, and a specific example is applied in the description to explain the principle and implementation of the present invention, and the description of the foregoing embodiment is only used to help understanding the method and core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A video transcoding device scheduling method is applied to a video network, and comprises the following steps:
acquiring an information list of video transcoding equipment; the video transcoding equipment information list records identification information of each video transcoding equipment;
acquiring running state information of each video transcoding device based on the identification information of each video transcoding device;
calculating the resource occupancy rate of each video transcoding device according to the running state information of each video transcoding device;
and when a video transcoding request is received, scheduling the video transcoding equipment with the lowest resource occupancy rate to process the video transcoding request.
2. The method for scheduling a video transcoding device of claim 1, wherein the video transcoding request has a corresponding priority, and the step of scheduling the video transcoding device with the lowest resource occupancy rate to process the video transcoding request comprises:
receiving a video stream transcoding request with the highest current priority;
and scheduling the video transcoding equipment with the lowest current resource occupancy rate to process the video stream transcoding request with the highest current priority.
3. The method for scheduling a video transcoding device of claim 1, wherein the step of obtaining the list of video transcoding device information comprises:
receiving registration requests containing respective identification information sent by each video transcoding device;
and storing the identification information in the registration request into the video transcoding equipment information list.
4. The method for scheduling the video transcoding device of claim 1, wherein the method is executed by a video transcoding device scheduling server, and each video transcoding device is distributed and connected to communicate with the video transcoding device scheduling server through a video network.
5. The video transcoding device scheduling method of claim 4, wherein the video transcoding device scheduling server is installed with a software development kit for performing the method.
6. A video transcoding device scheduling system is characterized in that a video transcoding device is applied to a video network and comprises a video transcoding device scheduling server and a plurality of video transcoding devices connected with the video transcoding device scheduling server;
the video transcoding device scheduling server comprises:
the video transcoding equipment information list acquisition module is used for acquiring a video transcoding equipment information list; the video transcoding equipment information list records identification information of each video transcoding equipment;
the video transcoding equipment running state information acquisition module is used for acquiring the running state information of each video transcoding equipment based on the identification information of each video transcoding equipment;
the video transcoding equipment resource occupancy rate calculating module is used for calculating the resource occupancy rate of each video transcoding equipment according to the running state information of each video transcoding equipment;
and the video transcoding equipment scheduling module is used for scheduling the video transcoding equipment with the lowest resource occupancy rate to process the video transcoding request when the video transcoding request is received.
7. The video transcoding device scheduling system of claim 6, wherein the video transcoding request has a corresponding priority, the video transcoding device scheduling module comprising:
the video stream transcoding request receiving submodule is used for receiving a video stream transcoding request with the highest current priority;
and the video transcoding equipment scheduling submodule is used for scheduling the video transcoding equipment with the lowest current resource occupancy rate to process the video streaming transcoding request with the highest current priority.
8. The video transcoding device scheduling system of claim 6, wherein the video transcoding device information list obtaining module comprises:
the registration request receiving module is used for receiving registration requests which are sent by all the video transcoding devices and contain respective identification information;
and the identification information storage module is used for storing the identification information in the registration request into the video transcoding equipment information list.
9. The video transcoding device scheduling system of claim 6 wherein each video transcoding device is distributed and communicatively coupled to the video transcoding device scheduling server via a video network.
10. The video transcoding device scheduling system of claim 9, wherein the video transcoding device scheduling server is installed with a software development kit for performing the method.
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