On Mon, 2012-09-10 at 04:00 -0700, ligen wrote: Hi, > gstreamer vesion: > > pkg-config --modversion gstreamer-0.10 > > 0.10.36 > > I use decodebin to play H264 encoded MP4 video Yes, but what decoder is used? ffdec_h264? a proprietary decoder? a hardware-accelerated decoder on an embedded system? Cheers -Tim