How to quickly draw video frames from QPixmap to QOpenGLWidget?

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Andrei Vukolov2018-02-27 19:06:54

Qt

Andrei Vukolov, 2018-02-27 19:06:54

How to quickly draw video frames from QPixmap to QOpenGLWidget?

The task is to draw incoming video frames (1280x1024, 30 fps) packed in QPixmap into QOpenGLWidget with minimal CPU time. There are no problems with packing frames. But drawing, and even with scaling, raises questions. What solutions can you suggest?

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