all: pres2014.mp4 pres2014.jpg pres2014.mp4: orig/CREP\ mai\ 2014.mp4 ffmpeg -i "$<" -strict -2 $@ -y pres2014.jpg: pres2014.mp4 ffmpeg -ss 00:01:49 -i $< -frames:v 1 $@ -y convert -strip -interlace Plane -gaussian-blur 0.05 -quality 90% $@ $@ clear: rm pres2014.*