On Fri, 7 Dec 2012 15:18:57 +0800 "王安刚" <angang at cloudacc-inc.com> wrote: > hi all > > > i was trying to > 1、 convert a file into pipe > 2、 convert the pipe into netstream > > > about step 1 how can i do that? Untested idea, on linux, make a pipe file: mkfifo pipefile, then: ffmpeg -i inputfile pipefile