Simon Thelen <ffmpeg-user <at> c-14.de> writes: > ffmpeg -report -f image2 -r 1 -i png.other/%04d.png > -c:v mpeg4 othermpeg4.mkv Could you test if using -threads 1 makes a difference? $ ffmpeg -r 1 -threads 1 -i png.other/%04d.png out.mkv Carl Eugen