ffmpeg mencoder 图像转视频

Turn X images to a video sequence

ffmpeg -f image2 -i image%d.jpg video.mpg

Turn a video to X images

ffmpeg -i video.mpg image%d.jpg

-r fps
Set frame rate (Hz value, fraction or abbreviation), (default =
25).
MPEG-1 and MPEG-2 streams are no good, since the frame rate is locked to 29.97 or 25 FPS.

mencoder mf://*.bmp -mf fps=3 -o test.avi -ovc lavc