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Video coding method and device, storage medium and electronic equipment

A coding method and video quality technology, applied in the field of video coding, can solve problems such as undiscovered solutions, achieve the effect of increasing the bit rate, enhancing the user's perception effect and perception experience

Pending Publication Date: 2022-07-15
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the above-mentioned problems existing in related technologies, no effective solution has been found yet

Method used

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  • Video coding method and device, storage medium and electronic equipment
  • Video coding method and device, storage medium and electronic equipment
  • Video coding method and device, storage medium and electronic equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] The method embodiment provided in the first embodiment of the present application may be executed in a server, a computer, an imaging device, a mobile phone, a tablet, or a similar computing device. Take running on the server as an example, figure 1 It is a hardware structural block diagram of a server according to an embodiment of the present invention. like figure 1 As shown, the server may include one or more ( figure 1 Only one is shown) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data, optionally, the above server may also Transmission devices 106 and input and output devices 108 are included for communication functions. Those of ordinary skill in the art can understand that, figure 1 The shown structure is for illustration only, and does not limit the structure of the above server. For example, the server may also i...

example 1

[0061] Example 1: Obtain the quality weights of multiple consecutive source video frames to be encoded in the source video in units of a preset number of frames, wherein the sum of the quality weights of the multiple consecutive source video frames is 1;

[0062] Optionally, the preset number of frames can be 16, 24, etc., image 3 It is a schematic diagram of a continuous source video frame according to an embodiment of the present invention, with 16 continuous frames of images as a coding unit, the source video includes several coding units, and the sum of the quality weights of the 16 continuous source video frames is 1;

example 2

[0063] Example 2: Obtain the quality weights of all source video frames to be encoded in the source video frame by frame, wherein the sum of the quality weights of all source video frames is 1;

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PUM

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Abstract

The invention discloses a video coding method and device, a storage medium and electronic equipment, and belongs to the technical field of video coding. The method comprises the steps that the quality weight of a to-be-coded source video frame is acquired, and the quality weight is used for representing the influence degree of the source video frame on the source video quality; adjusting an original fixed code rate coefficient CRF value of the source video frame based on the quality weight to obtain a target CRF value; and coding a source video frame according to the target CRF value. According to the invention, the technical problem of poor video impression caused by the adoption of fixed CRF value coding in the prior art is solved, the code rate of the key frame is improved under the condition of ensuring the overall quality of the video, and the impression effect and impression experience of a user during video playing are enhanced.

Description

technical field [0001] The present invention relates to the field of video coding, and in particular, to a video coding method and device, a storage medium, and an electronic device. Background technique [0002] The related art refers to a method of converting a file in an original video format into a file in another video format through a compression technology when performing video encoding. Common codec standards in video streaming transmission include H.264, H.265, AVS, AV1, and so on. [0003] The related art has a variety of rate control methods in video encoding, including a CBR (Constant BitRate) mode with constant bit rate, and a CRF (Constant Rate Factor) mode with constant visual quality. The rate control method finally achieves the effect of rate control by changing the QP value of each frame. Among them, the CRF mode uses the input CRF value as the reference QP (Quant parameter, quantization parameter), and the way to save the bit rate and ensure the image qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/154H04N19/146
CPCH04N19/154H04N19/146
Inventor 熊宝玉汪贤鲁方波樊鸿飞蔡媛
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD