Video coding method and device and electronic equipment

A video coding and coding technology, applied in the field of video coding, can solve problems such as low coding efficiency of video coding, and achieve the effect of improving coding efficiency and low bit rate

Pending Publication Date: 2022-01-14
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CRF is a code rate control method. Usually, according to the service to which the video belongs, the video quality to be achieved by video coding can be determined. Based on the video quali

Method used

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  • Video coding method and device and electronic equipment
  • Video coding method and device and electronic equipment
  • Video coding method and device and electronic equipment

Examples

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Example Embodiment

[0045] A preferred embodiment includes the steps:

[0046] Step A1, encoding the current frame sequence based on a plurality of initial encoding parameters to obtain the encoding result corresponding to each initial encoding parameter;

[0047] In this embodiment, there are five initial encoding parameters, which are respectively crf 0 -4, crf 0 -2, crf 0 , crf 0 +2, crf 0 +4 is used as an example to illustrate. For the current frame sequence, five initial encoding parameters are used to GOP the current frame sequence. 1 Perform encoding to obtain the encoding result GOP corresponding to each initial encoding parameter 1 0. GOP 1 1. GOP 1 2. GOP 1 3. GOP 1 4.

[0048] Step A2, determine the code rate and the first quality parameter of the encoding result corresponding to each initial encoding parameter;

[0049] The above-mentioned first quality parameter refers to the quality parameter of the encoding result corresponding to the initial encoding parameter; specific...

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Abstract

The invention provides a video coding method and device and electronic equipment. A video to be coded is divided into a plurality of frame sequences; for each frame sequence, determining a target coding parameter of the current frame sequence based on a plurality of preset initial coding parameters and a parameter determination principle; wherein the parameter determination principle comprises that the total quality parameter of the to-be-coded video meets a preset quality parameter threshold value, and the total code rate of the to-be-coded video is the lowest; and coding the video to be coded through the target coding parameter of each frame sequence. In the mode, the frame sequence is used as an analysis unit, and the target coding parameter of the current frame sequence is determined for each frame sequence under the conditions that the total quality parameter of the video to be coded meets the preset quality parameter threshold and the total code rate of the video to be coded is the lowest, so that a lower code rate can be obtained on the premise of ensuring the video quality, and the coding efficiency is improved. And the coding efficiency of video coding is improved.

Description

technical field [0001] The present invention relates to the technical field of video coding, in particular to a video coding method, device and electronic equipment. Background technique [0002] Video coding is to encode video signals through specific compression technology to realize video format conversion, thereby reducing the amount of video data and signal bandwidth, which is conducive to video storage and transmission. Video encoding can reduce the bit rate of the video, thereby affecting the quality of the video. Generally, the lower the bitrate of the video, the lower the quality of the video. [0003] During the video encoding process, the bit rate of the video can be controlled by CRF (Constant Rate Factor, constant rate factor). CRF is a code rate control method. Usually, according to the service to which the video belongs, the video quality to be achieved by video coding can be determined. Based on the video quality, the CRF value used for video coding is dete...

Claims

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Application Information

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IPC IPC(8): H04N19/177H04N19/146H04N19/154
CPCH04N19/177H04N19/146H04N19/154H04N21/2343
Inventor 成超蔡媛樊鸿飞汪贤鲁方波
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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