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python+QT+ffmpeg Integrate the actual needs of the project and the required libraries

One 、 Libraries needed for the actual project

Our final project name is PyPlayer, It is developed based on the following libraries

• QT5.11
• ffmpeg 4.0.1
• Python 3.7.0

Two 、python+QT+ffmpeg Actual project encapsulation

Concrete PyPlayer Will realize those things ？ Our goal is not to build a software with complex functions , It's going to be C++ call Python The architecture of , In the process , We don't think about design patterns , The main consideration is the simple presentation , This is convenient for you to do secondary reconstruction , There are not too many object-oriented things done here . The main reason is that we can not understand the characteristics of the project better , Too much encapsulation will increase the difficulty of understanding .

Our projects all heap classes in QT In the class , This is definitely not the case in a production environment , The necessary interfaces will be opened in the production environment .

3、 ... and 、PyPlayer The specific work

• python Configure window size and title
• Open external video （ Select window ） Release thread call python function
• Use pyffmpeg Expansion library decodes video
• heavy load QT Window play video
• Python The virtual machine runs in the thread and refreshes the display
• Main thread exit notification python

From the list Not much functionality , But there are many internal factors to consider , And after the architecture is built , Very scalable ,

Four 、 summary

• This article introduces the basic libraries needed for the project .
• Next class will explain QT Environmental knowledge
• If you think the article is useful to you , Remember give the thumbs-up Collection forward A wave , Bloggers also support making exclusive dynamic wallpapers for iron fans ~

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