streaming - GStreamer rtp stream to vlc

Question

I'm having some trouble figuring out how to create a simple rtp stream with gstreamer and display it on vlc.

I've installed GStreamer 0.10.30 and VLC 1.1.3. My only requirement is to use MPEG4 or H.264 codecs.

Right now, I can stream the GStreamer videotestsrc through this simple pipeline:

gst-launch videotestsrc ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink host=127.0.0.1 port=5000

which outputs the "caps" needed by the client to receive the stream:

/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d8800f50a041e1463000001b24c61766335322e3132332e30, payload=(int)96, ssrc=(uint)365697461, clock-base=(uint)390754204, seqnum-base=(uint)10399

I'm also able to display the stream using the following pipeline:

gst-launch udpsrc uri=udp://127.0.0.1:5000 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335322e3132332e30, payload=(int)96, ssrc=(uint)298758266, clock-base=(uint)3097828288, seqnum-base=(uint)63478" ! rtpmp4vdepay ! ffdec_mpeg4 ! autovideosink

but when I try to receive the stream with vlc:

vlc -vvv rtp://127.0.0.1:5000

I get nothing...

Answer 1

I've solved the issue, it just needs an sdp file like this:

v=0
m=video 5000 RTP/AVP 96
c=IN IP4 127.0.0.1
a=rtpmap:96 MP4V-ES/90000

and the option "send-config=true" for the rtpmp4vpay element:

gst-launch videotestsrc ! ffenc_mpeg4 ! rtpmp4vpay send-config=true ! udpsink host=127.0.0.1 port=5000

and then, it can be played with

vlc <filename>.sdp