Gstreamer PI to PI

[Tell]

Hi guys,

as the topic says i am streaming from one Pi to another. The following scenario works flawlessly:
Webcam attached to the PI and streaming to my Windows 7 PC:

Sender:
raspivid -n -t 0 -w 1280 -h 720 -fps 50 -b 2000000 -o - | gst-launch-1.0 -e -vvvv fdsrc ! h264parse ! rtph264pay config-interval=1 pt=96 ! udpsink host=192.168.0.111 port=5000

Receiver:
gst-launch-1.0 -e -v udpsrc port=5000 ! application/x-rtp, payload=96 ! rtpjitterbuffer ! rtph264depay ! avdec_h264 ! fpsdisplaysink sync=false text-overlay=false

Now i want to do the same with 2 PIs. Starting the receiver command above on the second PI i get immediately a clear picture. But the screen is frozen, i cant see any movement but the first picture that appears. And the CPU load is about 90%.

Log file of the sender:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = "video/x-h264\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ framerate\=\(fraction\)0/1\,\ parsed\=\(boolean\)true\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ level\=\(string\)4\,\ profile\=\(string\)high\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee01372c"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4BNyw\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)3332051949\,\ timestamp-offset\=\(uint\)1632913687\,\ seqnum-offset\=\(uint\)12122"
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4BNyw\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)3332051949\,\ timestamp-offset\=\(uint\)1632913687\,\ seqnum-offset\=\(uint\)12122"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = "video/x-h264\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ framerate\=\(fraction\)0/1\,\ parsed\=\(boolean\)true\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ level\=\(string\)4\,\ profile\=\(string\)high\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee01372c"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 1632913687
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 12122
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock


Log file of the receiver:

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Got context from element 'autovideosink0-actual-sink-glimage': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayX11\)\ gldisplayx11-0";
Setting pipeline to PLAYING ...
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = "application/x-rtp\,\ payload\=\(int\)96\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264"
New clock: GstSystemClock
/GstPipeline:pipeline0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:src: caps = "application/x-rtp\,\ payload\=\(int\)96\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264"
/GstPipeline:pipeline0/GstRtpJitterBuffer:rtpjitterbuffer0.GstPad:src: caps = "application/x-rtp\,\ payload\=\(int\)96\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264"
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay0.GstPad:sink: caps = "application/x-rtp\,\ payload\=\(int\)96\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264"
/GstPipeline:pipeline0/GstRtpH264Depay:rtph264depay0.GstPad:src: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee01372c"
/GstPipeline:pipeline0/avdec_h264:avdec_h264-0.GstPad:sink: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee01372c"
/GstPipeline:pipeline0/avdec_h264:avdec_h264-0.GstPad:src: caps = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ chroma-site\=\(string\)mpeg2\,\ colorimetry\=\(string\)bt709\,\ framerate\=\(fraction\)25/1"
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ chroma-site\=\(string\)mpeg2\,\ colorimetry\=\(string\)bt709\,\ framerate\=\(fraction\)25/1"
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstGLImageSink:autovideosink0-actual-sink-glimage.GstPad:sink: caps = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ chroma-site\=\(string\)mpeg2\,\ colorimetry\=\(string\)bt709\,\ framerate\=\(fraction\)25/1"
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink: caps = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(string\)progressive\,\ chroma-site\=\(string\)mpeg2\,\ colorimetry\=\(string\)bt709\,\ framerate\=\(fraction\)25/1"


Receiver PI: model 2 B. pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.4.50+ #970 Mon Feb 23 19:12:50 GMT 2016 armv6l GNU/Linux

Sender PI: model 1 B+. pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.4.34+ #930 Wed Nov 23 15:12:30 GMT 2016 armv6l GNU/Linux