Khang,
For 1.b. case: can you try the following command on your side and let me know if the performance is increased?
root@imx8mpevk:~# export DISPLAY=:0
root@imx8mpevk:~# gst-launch-1.0 -vvv imxcompositor_g2d name=comp \
sink_0::xpos=0 sink_0::ypos=0 sink_0::width=1440 sink_0::height=1080 \
sink_1::xpos=0 sink_1::ypos=1080 sink_1::width=1440 sink_1::height=1080 \
! queue ! video/x-raw, width=1440, height=2160 ! fpsdisplaysink video-sink="ximagesink" text-overlay=false sync=false \
v4l2src device=/dev/video2 ! video/x-raw, width=1440, height=1080, framerate=15/1 ! comp.sink_0 \
v4l2src device=/dev/video3 ! video/x-raw, width=1440, height=1080, framerate=15/1 ! comp.sink_1
On my side it looks better than previous pipeline. (I'm using 2 Basler cameras)
Best regards,
Diana
