1.2 KiB
Adding Smoothness to Video
In 1080p@30fps modes, slight video twitching is noticeable, and when shooting in slow motion, the timer shows that the picture freezes for some time and then refreshes. This is due to the unevenness of the stream, which increases sharply at key frames. This can be corrected by reconfiguring two encoder parameters on the camera. Thanks for the work done TipoMan and widgetii!
We need to put the gkrcparams file in /usr/sbin, give it execute permissions chmod +x /usr/sbin/gkrcparams and insert its launch after majestic startup in /etc/init.d/S95majestic:
start-stop-daemon -b -m -S -q -p "$PIDFILE" -x "/usr/bin/$DAEMON" -- $DAEMON_ARGS
sleep 1 <=== INSERT THIS
gkrcparams --MaxQp 30 --MaxI 2 <=== INSERT THIS
status=$?
After restarting the picture should become smooth. Other settings in majestic.yaml for mcs1 mode:
video0:
enabled: true
bitrate: 7168
codec: h265
rcMode: cbr
gopSize: 1.0
size: 1920x1080
If the picture still twitches sometimes, you will have to change mcs to 3 in /etc/wfb.conf, losing range, or reduce the bitrate.