Update README-buildnotes.md

docs/README-buildnotes.md

@@ -45,3 +45,9 @@ sudo apt-get install libopus-dev libvpx-dev
 
 This is TBD but using these links might help: https://github.com/dusty-nv/jetson-containers#pre-built-container-images
 https://github.com/NVIDIA/nvidia-docker/wiki/NVIDIA-Container-Runtime-on-Jetson
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+* Hardware support
+The Jetson is a edge device with low computing capabilities - so using the dedicated hardware efficiently is important. If everything just uses CPU then we are doing it wrong. Using software libraries that can leverage the HW is important (encoding and decoding video). Initial research shows ffmpeg available for the Jetson might not support HW enc/dec - also H.264 might be required vs. other formats. See here for discussion/alternatives: 
+* https://forums.developer.nvidia.com/t/webrtc-low-performances-with-nvidia-encoder/115324
+* https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/hardware_acceleration_in_webrtc.html#wwpID0E0OB0HA