On Mon, 25 Mar 2019, at 14:02, Yufei He wrote: > Matrox card is very similar to cards from other companies in terms of > accesses. Then why do you have this specific libmvM264Ffmpeg library? What is it? Is it part of the driver? Is it installed at the same time as the driver? -- Jean-Baptiste Kempf - President +33 672 704 734