How do I add volume control in an mp4 video?

Hi Guys,

Is there a way to add a volume control in an mp4 video?

Thank you.

The Video plugin has a Set Volume action.

Set volume

Set the volume of the audio playback from the video, in decibels attenuation. 0 is full volume, -10 dB is approximately half as loud, etc. The audio cannot be amplified: positive volume values will be treated as 0.