QtMEL

Qt Media Encoding Library is a Qt library that wraps Libav, OpenCV and RtAudio libraries and allows you easily grab your desktop screen, your cameras, your audio input devices and finally encode audio/video streams.

Key features:

• desktop screen capture with variable frame rate
• web-cameras capture with variable frame rate
• changing the image source on the fly (screen<->camera) while recording a video
• audio input devices capture
• video encoding with variable and fixed frame rate
• audio encoding