[gst-devel] about GStreamer performance problem

[Wim Taymans]

On Tue, 2009-04-14 at 09:54 +0200, Marc Leeman wrote:
> > I did such a test:
> > make an HDV camera connect to a PC, I call it PC1, and then streaming the mpeg2ts video data captured from this device with:
> > hdv1394src ! queue ! mpegtsparse ! rtpmp2tpay ! udpsink host=192.168.1.100 port=500
> > and some other stuff, such as gstrtpbin  related.
> > and then I received the stream on PC2 use GStreamer pipeline first, and VLC to compare.
> 
> Yeah,
> 
> just don't use gstrtpbin and use udpsrc, gstrtpjitter and gstptdemux
> instead (a subset of udpsrc). I've written a bin that does this for this
> problem with pretty good results.
> 
> gstrtpbin does way too much buffering with the default params; haven't
> tested tweaking them.
> 
> The same is actually true for rtspsrc (which uses gstrtpbin).
> 
> > I found that GStreamer's performance is rather bad, the delay is more
> > than 3 seconds, which of VLC is 1.2s.
> 
> gstrtpbin loads the CPU, that's right.

Would you care to back up this statement? which component is eating CPU?

Wim

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