public void GetSetOption() { const string fileName = "dummy2.avi"; try { using var writer = new VideoWriter(fileName, VideoCaptureAPIs.OPENCV_MJPEG, FourCC.MJPG, 10, new Size(640, 480)); Assert.True(writer.IsOpened()); Assert.Equal("CV_MJPEG", writer.GetBackendName()); Assert.True(writer.Set(VideoWriterProperties.Quality, 50), "VideoWriter.Set failed"); Assert.Equal(50, writer.Get(VideoWriterProperties.Quality), 3); } finally { DeleteFile(fileName); } }