Linux and Joystick info

Remember that both jstest-gtk and evdev-joystick are important in tuning the the joystick behavior:

$ apt install jstest-gtk


sudo evdev-joystick --evdev /dev/input/by-id/{controller name} --d 0 # zero's out the dead zone that the hid "event" system inserts into that abstraction layer

FFMPEG PNG to webm

Most the examples don't list basic file globing for input... so here it is:

$ ffmpeg -pattern_type glob -i '*.png' -c:v libvpx-vp9 -pix_fmt yuva420p output.webm

When new enough ffmpeg can do vp8 with transparency that is backwards compatible with decoders that DON'T support alpha channel:

$ ffmpeg -pattern_type glob -i '*.png' -c:v libvpx -pix_fmt yuva420p -metadata:s:v:0 alpha_mode="1" output.webm

Most examples show something like this:

$ ffmpeg -framerate 25 -f image2 -i frames/%03d.png -c:v libvpx -pix_fmt yuva420p output.webm

CH Pedal Information

I should have documented this (and other useful tools which I can't remember at this time) earlier:

KERNEL=="event*", ATTRS{idProduct}=="00f2", ATTRS{idVendor}=="068e", MODE="0666"
KERNEL=="event*", ATTRS{idProduct}=="00f3", ATTRS{idVendor}=="068e", MODE="0666"

There are some ways to scan input devices .. some "jstest" and another way -- can't remember because it would come in handy with previous post about NX6000D HID interface: