Trying to stream H264 over RTP

Craig Routledge web at
Wed Apr 16 18:37:02 PDT 2014

On 04/16/2014 02:29:23 AM, Robin Aproskie wrote:
> How do you work out the props?

I'm sorry, I'm new to gstreamer and I don't understand the question.
Could you be more specific please?

> -----Original Message-----
> From: gstreamer-devel  
> [mailto:gstreamer-devel-bounces at] On Behalf Of  
> Craig Routledge
> Sent: Wednesday, April 16, 2014 4:47 AM
> To: Discussion of the development of and with GStreamer
> Subject: Re: Trying to stream H264 over RTP
> > On 04/15/2014 01:36 PM, Chuck Crisler wrote:
> > > Set higher logging levels and/or get a packet capture to see if  
> the
> > problem(s) is in the transmit or receive.
> On 04/15/2014 05:46:57 PM, Michael Gruner wrote:
> > You'll need to specify the full set caps from the payloader, just  
> the
> > mimetype isn't enough. For example:
> > And yes, this means that the receiver pipeline is fixed to the  
> sender
> > pipeline's resolution and characteristics. Changing something on the
> > sender will require a new pipeline on the receiver. If this is a
> > problem for you, you might want to try using mpegtsmux or a smarter
> > protocol like RTSP.
> Thank you both.  Nothing seemed obviously wrong in the output when I  
> increased the debug level.  However, when I ran wireshark, I got an  
> unending list of "Destination unreachable (unreachable port)" ICMP  
> packets for the destination port.
> The weird part is that my firewall should not be blocking this.  I'm  
> running Fedora 20 with the standard firewall setup, the first two  
> entries of which are,
>    -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
>    -A INPUT -i lo -j ACCEPT
> So all loopback connections should go through.
> Anyone have any ideas?
> Also, I'd like to look into RTSP but although I found a packet  
> receiver
> (rtspsrc)
> with gst-inspect, I can't seem to figure out how to invoke the server.
> The
> gstreamer-rtsp-server documentation only lists the library functions.
> Does it
> have to be done via a program or can I create an RTSP stream with a  
> command line?

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