Multiple cameras use nvdewarper

Accelerated Computing Intelligent Video Analytics DeepStream SDK
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  1. Please use “nvvideoconvert” instead of “nvvidconv” for you are constructing DeepStream pipeline. DeepStream SDK FAQ - Intelligent Video Analytics / DeepStream SDK - NVIDIA Developer Forums
  2. Take one camera as the example:
v4l2src device=/dev/video0 ! tee name=t0 \
        t0. ! queue max-size-buffers=800 leaky=downstream ! nvvideoconvert ! "video/x-raw(memory:NVMM),width=1920,height=1080,format=RGBA" ! nvdewarper config-file=your_dewarper_config.txt source-id=0  ! nvvideoconvert mux.sink_0 \
        t0. ! queue max-size-buffers=800 leaky=downstream ! nvvideoconvert !  videorate max-rate=5 ! nvv4l2h264enc ! h264parse ! splitmuxsink location="videos/camera_0/output_%010d.mp4" max-size-time=10000000000 sync=false