Master-slave multi-node coding method for 8K ultra-high definition
An encoding method and master node technology, applied in the field of master-slave multi-node encoding for 8K ultra-high definition, can solve problems such as inability to complete 8K real-time encoding, and achieve the effect of improving performance
Active Publication Date: 2020-01-03
HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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Problems solved by technology
Since the computing power of one server cannot complete 8K real-time encoding, dual-node or even multi-node parallel encoding may be required
But how to use dual-node parallel encoding and balance the computing load of the dual-nodes to achieve maximum encoding performance is a problem
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0030] A master-slave multi-node encoding method for 8K ultra-high definition, the specific operation steps are as follows:
[0031] (1) Deploy the overall encoding and transcoding system on the master node, including input signal acquisition, input audio and video decoding, input audio and video preprocessing, encoding core, encoded audio and video multiplexing, IP distribution, and on the slave node Only deploy the coded kernel and the modules that communicate with the master node, such as figure 1 As shown; the input audio and video preprocessing includes chromaticity space conversion, HDR conversion, and image quality enhancement. The master and slave nodes are connected by 40Gbps optical modules and the master and slave nodes use TCP protocol communication;
[0032] (2) Initially, the number of encoded GOP frames of the master and slave n...
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The invention discloses a master-slave multi-node coding method for 8K ultra-high definition. The master-slave multi-node coding method comprises the following specific operation steps: deploying an integral encoding and transcoding system on a master node, and only deploying an encoding kernel and a module communicated with the master node on a slave node; initially, setting the number of coded GOP frames of the master node and the slave node to be equal, wherein the frame number of the current coding frame in the GOP and the serial number of the current coding GOP are both 0; if the GOP serial number is an even number, coding the current frame in a main node coding kernel; otherwise, indicating coding in the coding kernel of the slave node; after one frame is decoded each time, obtaininga to-be-decoded frame by the main node and deciding which node the current to-be-decoded frame is placed in for coding; and meanwhile, monitoring CPU usage resources of the master node and the slavenode within a period of time in real time, dynamically adjusting the GOP frame number of the slave node, and finally achieving calculation complexity and balance of the master node and the slave node.The master-slave multi-node coding method has the beneficial effects that the GOP size is dynamically adjusted to achieve the balance of computing resources of the master node and the slave node, sothat the overall performance is fully improved.
Description
technical field [0001] The present invention relates to the technical field of video decoding, in particular to a master-slave multi-node encoding method for 8K ultra-high definition. Background technique [0002] HEVC is the latest generation of video coding standard released by the International Telecommunication Union (ITU-T) in 2013. Compared with the previous generation coding standard H264, the compression efficiency of HEVC has doubled, which can greatly reduce the 8K ultra-high-definition video that is currently popularized. bit rate, reducing bandwidth consumption. [0003] AVS2 is the latest generation standard for ultra-high-definition video applications released by China in December 2016. The coding framework of AVS2 is similar to HEVC, and its coding efficiency is slightly better than HEVC. At present, the AVS2 video standard has become the only video coding standard adopted by the State Administration of Radio, Film and Television of China, and has broad appl...
Claims
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Login to View More IPC IPC(8): H04N19/177H04N19/42
CPCH04N19/177H04N19/42
Inventor 谢亚光李日朱建国
Owner HANGZHOU ARCVIDEO TECHNOLOGY CO LTD