How to demux a mp4 file to a encoded 264 video file by qtdemux?

[MaJin]

I found something like gst-launch-1.0 filesrc location=264.mp4 ! qtdemux name=mdemux mdemux.video_0 ! queue ! decodebin ! autovideosink 264.mp4 has AVC/H264 encoded byte stream and there is no audio data. I need to demux 264.mp4 to get H264 byte stream. I tried the command but there is no output file generated. How could I get the H264 byte stream? Thanks. Jin 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20150206/fc7b392b/attachment.html>