Screen Recorder

A library to capture and record from your audio and video devices.

Contains the main library and two example applications (command line and graphic interface).

A video presentation of the QT application can be found here.

Build

MacOS

1. Install dependencies

brew install ffmpeg
brew install fmt
brew install qt6

2. Build project

   export CMAKE_PREFIX_PATH=/usr/local/Cellar/qt/6.2.2
   mkdir build
   cd build
   cmake -DCMAKE_BUILD_TYPE=Release ..
   cmake --build .  

Linux

1. Install dependencies

sudo apt-get install libavdevice-dev
sudo apt-get install libavfilter-dev
sudo apt-get install libfmt-dev
sudo apt-get install libxrandr-dev
sudo apt-get install pip
pip install -U pip
pip install aqtinstall
aqt install-qt linux desktop 6.2.0

2. Build project

sudo snap install cmake --classic
export CMAKE_PREFIX_PATH=~/6.2.0/gcc_64
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
cmake --build .  

Windows

1. Install CMake (>= 3.22)

2. Install Visual Studio environment for desktop c++ applications

3. Install Qt6 MSVC environment for desktop applications

4. Install dependencies

cd \
git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
.\bootstrap-vcpkg.bat
.\vcpkg integrate install
.\vcpkg install ffmpeg[avcodec,avdevice,avfilter,avformat,avresample,core,gpl,postproc,swresample,swscale,x264,ffmpeg]:x64-windows
.\vcpkg install fmt:x64-windows

5. Build project

cmake -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_PREFIX_PATH=C:/Qt/6.2.3/msvc2019_64 ..
cmake --build  . -- /property:Configuration=Release

6. Provide dependencies

• Release:

  cd build\qt_screen_recorder\Release
  C:\Qt\6.2.3\msvc2019_64\bin\windeployqt.exe -qmldir ..\..\..\qt_screen_recorder\components --release appqt_screen_recorder.exe

• Debug:

  cd build\qt_screen_recorder\Debug
  C:\Qt\6.2.3\msvc2019_64\bin\windeployqt.exe -qmldir ..\..\..\qt_screen_recorder\components --debug appqt_screen_recorder.exe

7. Run

   set QSG_RHI_BACKEND=opengl // Might be needed for VMs
   appqt_screen_recorder.exe