Streaming Picture in Picture H264 video from Raspberry Pi

[Shantanu Gore]

Hi guys,

I would like to stream multiple H264 (from Logitech C920s) streams from a
Raspberry Pi to a Windows computer using GStreamer. So far, I have been
able to stream a single video stream, using the following commands:

Raspberry Pi Side:
gst-launch-1.0 v4l2src device=/dev/video0 !
video/x-h264,width=1280,height=720,framerate=30/1 ! h264parse ! rtph264pay
pt=127 config-interval=4 ! udpsink host=192.168.2.7

Windows Side:
C:\gstreamer\1.0\x86_64\bin>gst-launch-1.0 udpsrc ! application/x-rtp,
payload=1
27 ! rtph264depay ! avdec_h264 ! fpsdisplaysink sync=false
text-overlay=false

However, when I try to stream using a videomixer, it seems that the
Raspberry Pi is processing the video somehow (perhaps due to my use of the
videoconvert command), and thus I get extremely slow video and gstreamer
complains that my computer (the Pi) isn't fast enough.

Is there a way to accomplish this without first converting the video on the
Pi? I tried using a command similar to the one I have provided above, but
it said that videomixer could not connect to rtph264pay.

Any help would be very much appreciated. Thanks in advance!

-- 
Thanks,
Shantanu Gore
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