forwarded screen stutters every several seconds

[Nicolas Dufresne]

You can also experiment with configuring the bitrate, and selectiong
CBR (constant bitrate). You can also control the distance between
keyframe (ideally you would never send keyframe unless something is
dropped, though for that you need rtpbin).

Nicolas

Le vendredi 15 janvier 2016 à 22:38 -0800, henryco a écrit :
> Hello,
> 
> I'm trying to stream the whole desktop screen from a PC to a
> raspberry pi
> with the following pipelines and everything is fine except for a
> rapid
> stuterring every several seconds : from a few seconds when something
> changes
> on the screen, to more than 10 seconds when it's static. I have tried
> various combinations involving  sync=false on both ends, use-
> damage=0, 
> rtpjitterbuffer ... but with no success so far
> 
> sender side:
> 
> gst-launch-1.0 -v ximagesrc use-damage=true ! queue  !
> videoconvert  !
> videoscale ! "video/x-
> raw,framerate=(fraction)30/1,format=(string)I420" !
> queue ! x264enc tune=zerolatency  ! queue ! rtph264pay  pt=96 !
> udpsink
> host=192.168.1.19 port=5000
> 
> receiver side (Rpi)
> 
> gst-launch-1.0 -v udpsrc port=5000 caps="application/x-rtp,
> media=(string)video, clock-rate=(int)90000, 
> encoding-name=(string)H264" ! rtpjitterbuffer ! rtph264depay ! queue
> !
> h264parse ! queue ! omxh264dec ! 
> queue ! eglglessink
> 
> the only thing that removes the problem is when i give up the
> zerolatency
> tuning (smoothing over many frames probably makes the glitch
> disappear) but
> this is not an option  for me since the frame rate drops for a video
> (toot
> much charge for the Pi ?) and probably the latency increases much...
> 
> may be there are too many queues in my pipelines, i dont know...
> 
> thank you in advance for advice and comments
> 
> 
> 
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble
> .com/forwarded-screen-stutters-every-several-seconds-tp4675279.html
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