Update gst prrt, scripts

salt/drone/video/receive_video.sh

-gst-launch-1.0 prrtsrc \
+exec env GST_DEBUG=prrtsrc:6 gst-launch-1.0 prrtsrc \
     ! "image/jpeg,framerate=24/1" \
     ! jpegparse \
-    ! queue \
     ! jpegdec \
     ! videoconvert \
-    ! fpsdisplaysink video-sink=ximagesink
+    ! fpsdisplaysink video-sink=ximagesink sync=false

salt/drone/video/send_video.sh

@@ -2,5 +2,4 @@ raspivid -t 0 -cd MJPEG -w 640 -h 480 -fps 24 -b 6000000 -fl -o - |
 gst-launch-1.0 fdsrc \
     ! "image/jpeg,framerate=24/1" \
     ! jpegparse \
-    ! queue \
-    ! prrtsink host=10.8.0.44 port=5000 targetdelay=5000
+    ! prrtsink host=10.8.0.44 port=5000 targetdelay=8000

gst-prrt @ 4f421ef3

-Subproject commit c7cea6feb7e593f3a7ce03e6e33256732310eea8
+Subproject commit 4f421ef3e1eca6ffd34eff5af2ec36b37e31a0b1