Video encoding and decoding method, device, system and storage medium

Abstract

The embodiment of the invention discloses a video encoding and decoding method, a video encoding and decoding device, a video encoding and decoding system and a storage medium, and belongs to the technical field of communication. The video encoding method comprises the following steps: performing macro block division on pixel data of a screen change area; classifying the divided macro blocks intocharacter macro blocks or image macro blocks according to pixel data in the macro blocks; determining the compression type of each character macro block according to the color data in each character macro block; and according to the compression type of each character macro block, carrying out encoding compression on each character macro block by adopting corresponding compression quality. By adopting the embodiment of the invention, the corresponding compression quality is selected while the character definition is met. The compression efficiency is improved as much as possible. The bandwidthis reduced, so that the method is suitable for a desktop office scene containing a large number of characters.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a video encoding and decoding method, device, system, and storage medium. Background technique [0002] With the popularization of cloud computing, virtual desktop and other technologies, a large amount of decoding end data needs to be transmitted to the user end through the network for processing. In order to meet the transmission of desktop content under narrow bandwidth network conditions, video coding technology based on screen content is widely used. In the realm of virtual desktops. [0003] The existing remote transmission classification coding technology can be roughly divided into two categories: the first category is that the entire screen is roughly divided into equal areas, roughly divided into text and pictures according to the color of the area, and then lossless compression is used for the text. Lossy compression is performed on...

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Problems solved by technology

[0006] In view of this, the purpose of the embodiments of the present invention is to provide a video encoding and decoding method, device, system, and storage medium to solve the problem that the prior art video encoding technology has low compression efficiency for discontinuous tone content such as text, especially for The desktop office scene with a lot of text, the problem of poor applicability

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