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Audio and video interception based on FFMPEG (C++Qt version) This blog is based on the previous blog: https://blog.csdn.net/liyuanbhu/article/details/121744275 The last blog realized the file encapsulation conversion. We add a little more function on this basis. The implementation can arbitrarily intercept audio and video within a period of ...

QMainWindow is a class that provides users with main window programs, including a menu bar, multiple tool bars, multiple dock widgets, a status bar and a central widget. It is the basis of many applications, such as text editor, picture editor, etc. This chapter also creates the interface in the form of code, so the settings of the following o ...

sketch QCustomPlot is a graphic library based on Qt C + +, which is used for drawing and data visualization - making beautiful 2D charts - curves, trends, coordinate charts, histograms, etc., and providing high-performance services for real-time visualization applications. It has no further dependencies and is well documented. download get i ...

Congratulations on finding this article. In my recent work, I need to use QT to write many functions about point cloud processing. There are too many pits in this process. (unable to resist the temptation to make complaints about PCL+VTK, the direct pop-up display of the point cloud is very simple. However, embedding VTK into Qt to display ...

1, Foreword In the process of project development, third-party libraries are often used. The path, header file path, referenced library name, etc. of the third-party library need to be specified in QtCreator project; In addition, you may also need to write a general project to select different libraries for different compiler types and differe ...

opencv opens the camera and performs face detection Development environment: Qt5.12.4, MSVC2017, win10 First, sort out the process Configure opencv Library in QtStart a sub thread to continuously obtain image frames from the cameraUse the obtained image frame to input opencv face recognition algorithm, and draw a rectangular boxTransfer the ...

The lambada expression is supported in higher versions of QT, but the line "CONFIG += C++11" needs to be added to the file "projectName.pro". The new and old forms are documented below. 1. TCP 1. Complete Project Connections between signals and slot functions in tcpserver.cpp in this project use the connect() function in ...

Generally, the drawing function is realized through three classes: QPainter, QPen and QBrush. QPixmap is used to load and render this Map image, its image presentation is essentially realized by drawing. QPainter QPainter class performs drawing operations on QWidget (control), provides highly optimized functions for most graphical interfaces, ...

1, Project requirements Don't write it first. We'll add it when we're finished 2, Design ideas It's late today. Just make a code record. It's all on paper and will be added later 3, Day 1 project diary 1. Today's summary: I wrote half a server today, Main functions 1) You can create a server using Tcp protocol, define the port yourself, a ...

1, The solution prompt window flashes: 1. adopt system()Function solution: stay return 0；Previously added system("pause"); Function call. 2. With the help of VS Tool solution: On the project --->Right click ---> attribute ---> Configuration properties ---> Connector ---> system ---> Subsystem ---> Select con ...