This release improves the video stream quality by setting the video resolution to 720p and providing an option to set the minimum video bit rate.

The pre-configured Raspbian image sets the video resolution via v4l2-ctl in the /etc/sv/hkcam/run script. The minimum bit rate is not specified but you can set it with the --min_video_bitrate argument.

A run script with a minimum bit rate of 500kbps might look like this

#!/bin/sh -e
exec 2>&1
v4l2-ctl --set-fmt-video=width=1280,height=720,pixelformat=YU12
exec hkcam --min_video_bitrate=500 --data_dir=/var/lib/hkcam/data --verbose=true

Note: Setting a minimum video bitrate might break streaming to Apple Watch.