cmwu <277893958 <at> qq.com> writes: > ffmpeg2.1 This looks old > -i /home/mps/chd/out.avi > I found the cpu load use is 140%, it's not 100% If you don't want FFmpeg to decode (!) with automatically chosen number of threads (as many cores as you have), tell it with: $ ffmpeg -threads 1 -i file Carl Eugen