UPDATE This is the service that won't start: 849 root 20 0 147744 19192 12352 S 74.4 2.2 1:05.69 gst-launch-1.0 if(window.hljsLoader && !document.currentScript.parentNode.hasAttribute('data-s9e-livepreview-onupdate')) { window.hljsLoader.highlightBlocks(document.currentScript.parentNode); } PeeKey

Hmmm... That dosn't help, i have change the time from 20 to 30 without any luck. gstreamer log says: Caught SIGSEGV Spinning. Please run 'gdb gst-launch-1.0 980' to continue debugging, Ctrl-C to quit, or Ctrl-\ to dump core. if(window.hljsLoader && !document.currentScript.parentNode.hasAttribute('data-s9e-livepreview-onupdate')) { window.hljsLoader.highlightBlocks(document.currentScript.parentNode); }

UAVCast gstreamer

Per_Kristian_Frydenl

Hi guys.

We hve now flown for quite a while and it seems stable.
However the last flights it looks like the gstreamer service on the navio Board will not start before about 5 reboots and it looks like it growing.

This is added in rc.local:

sleep 20
sudo /home/pi/UAVcast/DroneStart.sh

And the gstreamer log says:

Spinning.  Please run 'gdb gst-launch-1.0 808' to continue debugging, Ctrl-C to quit, or Ctrl-\ to dump core.
Caught SIGSEGVing\)progressive\,\ framerate\=\(fraction\)30/1"/GstPipeline:pipeline0/GstOMXH264Enc-
omxh264enc:omxh264enc-omxh264enc0.GstPad:sink: caps = "video/x-raw\,\ format\=\(string\)I420\,
\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=
\(stramerate\=\(fraction\)30/1"/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.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\,\fr(fraction\)30/1"
/GstPipeline:pipeline0/GstQueue:queue0.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\,\framerate\=\fraction\)30/1"/GstPipeline:pipeline0/GstQueue:queue0.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\,\ framerate\=\(merate\=\
(fraction\)30/1"/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.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\,\ fra\=\(fraction\)30/1"/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.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\,\ framerateNew clock: GstSystemClockSetting 
pipeline to PLAYING ...Pipeline is live and does not need PREROLL 
...Setting pipeline to PAUSED ...

pi@navio:~/UAVcast/log $ more gstreamer.log

I use a Logitech C920 Regards Per Kristian

Per_Kristian_Frydenl

UPDATE

This is the service that won't start:

849 root      20   0  147744  19192  12352 S  74.4  2.2   1:05.69 gst-launch-1.0

PeeKey

Sinamics

Hi Per,

You probably dealing with bad startup sequence. If the Gstreamer starts before the cellular connection is completed, you will end up with a black screen.
I should probably add a correct boot order in UAVcast, that starts gstreamer as soon as everything else is up and running. Video should be the last thing on list.

For a quick fix, you can try to increase the 20s to 30s. See if that makes any diffrence.

Per_Kristian_Frydenl

Thanks Sin...

It seems like a very good idea!
I will try that tomorrow and give feedback.
It's a little bit strange since this was working like a charm the first 20 flights, and then it got "slower and slower".

Just a notice.

PeeKey...

Per_Kristian_Frydenl

Hmmm...

That dosn't help, i have change the time from 20 to 30 without any luck.
gstreamer log says:

Caught SIGSEGV
Spinning.  Please run 'gdb gst-launch-1.0 980' to continue debugging, Ctrl-C to
quit, or Ctrl-\ to dump core.

Per_Kristian_Frydenl

After 4 reboot (pull the powercord) i get blue light in the C920 and thing working.

The log says:

pi@navio:~/UAVcast/log $ more gstreamer.log
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.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\,\ framerate
\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.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\,\ fra
merate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstQueue:queue0.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\,\ framerate\=\
(fraction\)30/1"
/GstPipeline:pipeline0/GstQueue:queue0.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\,\ framerate\=\
(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.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\,\ fr
amerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstOMXH264Enc-omxh264enc:omxh264enc-omxh264enc0.GstPad:sink: caps = "video/x-raw\,\ format\=\(string\)I420\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ interlace-mode\=\(str
ing\)progressive\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstOMXH264Enc-omxh264enc:omxh264enc-omxh264enc0.GstPad:src: caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)
1280\,\ height\=\(int\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:src: caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\
)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:sink: caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\)
720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter1.GstPad:sink: caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int
\)720\,\ pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pi
xel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\ parsed\=\(boolean\)true\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0"
/GstPipeline:pipeline0/GstQueue:queue1.GstPad:src: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-aspe
ct-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\ parsed\=\(boolean\)true\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0"
/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\\\=\\\
,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtp_sink_0.GstProxyPad:proxypad1: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string
\)\"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin/GstRtpSession:rtpsession0.GstPad:send_rtp_src: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"
J2QAKKwrQCgC3QDxImo\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtp_src_0: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"J2QAKKwrQCgC3QDxImo
\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstUDPSink:vrtpsink.GstPad:sink: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4C
XLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtp_src_0.GstProxyPad:proxypad0: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\
)\"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin/GstRtpSession:rtpsession0.GstPad:send_rtp_sink: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\
"J2QAKKwrQCgC3QDxImo\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtp_sink_0: caps = "application/x-rtp\,\ media\=\(string\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ sprop-parameter-sets\=\(string\)\"J2QAKKwrQCgC3QDxIm
o\\\=\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ ssrc\=\(uint\)2463111836\,\ timestamp-offset\=\(uint\)4061139501\,\ seqnum-offset\=\(uint\)60"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\
 pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\ parsed\=\(boolean\)true\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0"
/GstPipeline:pipeline0/GstQueue:queue1.GstPad:sink: caps = "video/x-h264\,\ stream-format\=\(string\)avc\,\ alignment\=\(string\)au\,\ profile\=\(string\)high\,\ level\=\(string\)4\,\ width\=\(int\)1280\,\ height\=\(int\)720\,\ pixel-asp
ect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\ parsed\=\(boolean\)true\,\ codec_data\=\(buffer\)01640028ffe1000e27640028ac2b402802dd00f1226a01000528ee025cb0"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 4061139501
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 60
/GstPipeline:pipeline0/GstRtpBin:rtpbin/GstRtpSession:rtpsession0.GstPad:send_rtcp_src: caps = application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_0: caps = application/x-rtcp
/GstPipeline:pipeline0/GstUDPSink:vrtcpsink.GstPad:sink: caps = application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_0.GstProxyPad:proxypad2: caps = application/x-rtcp