Adds keyboard shortcuts for controlling HTML5 media player (audio/video) with OSD support. Seek media to 0%, 5%, 10%, ..., or 95%. Rewind and fast fordward media by 30 seconds, 1 minute, and 5 minutes. Change media speed even beyond YouTube's speed limit. Change audio volume to 20%, 40%, 60%, 80%, or 100%. Change video aspect ratio for TV and letterbox content (for widescreen monitors). This script is designed for US keyboards. Non US keyboard users will need to edit keys in the script.
Per
Keyboard Shortcuts:
SHIFT+LEFT = Rewind media by 30 seconds
SHIFT+RIGHT = Fast forward media by 30 seconds
CTRL+LEFT = Rewind media by 1 minute
CTRL+RIGHT = Fast forward media by 1 minute
CTRL+SHIFT+LEFT = Rewind media by 5 minutes
CTRL+SHIFT+RIGHT = Fast forward media by 5 minutes
CTRL+/ = Fast forward media by 1.5 minutes
0 to 9 = Seek media to 0%, 10%, 20%,...90%
SHIFT+0 to SHIFT+9 = Seek media to 5%, 15%, 25%,...95%
CTRL+1 to CTRL+5 = Change audio volume to 20%, 40%, 60$, 80%, 100%
CTRL+[ = Decrease media speed by 0.2x (by default)
CTRL+] = Increase media speed by 0.2x (by default)
CTRL+; = Reset media speed
CTRL+' = Change custom media speed
CTRL+\ = Change unit of media speed increment/decrement
CTRL+7 = Change video aspect ratio for letterbox content. Fix 4:3 letterbox content stretched to widescreen format.
CTRL+8 = Change video aspect ratio for TV content. Fix 4:3 TV content stretched to widescreen format.
CTRL+9 = Reset video aspect ratio
Notes:
In YouTube, if the video speed is below 0.25x or above 2x, the YouTube setting display will be capped to 0.1x or 2x.
Web browser video speeds: Firefox = 0.25 to 5.0; Chrome = 0.1 to 16.0.