gstreamer send and receive h264 rtp stream

gs.sh

# linux send h264 rtp stream:
gst-launch-1.0 -v ximagesrc ! video/x-raw,framerate=20/1 ! videoscale ! videoconvert ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=5000

# Macos send h264 rtp stream:
gst-launch-1.0 -v avfvideosrc capture-screen=true ! video/x-raw,framerate=20/1 ! videoscale ! videoconvert ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=5000

# receive h264 rtp stream:
gst-launch-1.0 -v udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! rtph264depay ! decodebin ! videoconvert ! autovideosink

BTW, I am getting connection refused message. I hope this helps.

Is there any plugin can automatically generate sdp file?

Hi guys I need to stream h264 streams from a udpsource on omxh264dec and sink it to wayland ... can someone please help

Follow these steps to generate a sdp source
a) gstreamer source stream append a -v as follows

gst-launch-1.0 v4l2src device=/dev/video0  do-timestamp=true !
 video/x-raw,width=1280, height=800,framerate='(fraction)'20/1 ! autovideoconver
t  ! omxh264videoenc  !queue ! h264parse  config-interval=1 ! rtph264pay pt=96 !
  udpsink host=192.168.2.158 port=5000 sync=false -v

b) This will give verbose output like one below

debug  : cedarc <BitStreamCreate:102>: BitStreamCreate OK
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = video/x-h264, stream-format=(string)avc, alignment=(string)au, width=(int)1280, height=(int)800, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)20/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-format=(strin2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)4d0020, sprop-parameter-sets=(string)"Z00AIOVAKAMogA\=\=\,aO4xEg\=\=", payload=(int)96, ssrc0
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: **caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, profile-level-id=(string)4d0020, sprop-parameter-sets=(string)"Z00AIOVAKAMogA\=\=\,aO4xEg\=\=", payload=(int)96,** ssrc=(uin0
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, stream-format=(string)avc, alignment=(string)au, width=(int)1280, height=(int)800, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)20/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-format=(st2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 3016666383

c) Use the information above to make your sdp file.
Example sdp file from above is

v=0
o=IP4 192.168.2.62
i=test
c=IN IP4 192.168.2.62
s=ESP H264 STREAM
m=video 5000 RTP/AVP 96
a=rtpmap:96 H264/90000
a=fmtp:96 media=video; clock-rate=90000; encoding-name=H264; sprop-parameter-sets=Z00AIOVAKAMogA\=\=\,aO4xEg\=\=

d) Note that in the SDP file the IP address is that of the server. In the server gstreamer code, the IP address is that of the client

can anyone help me to generate rtp stream using decklink video source ?

Fahad