Variable Framerate (VFR)

[gavo]

Variable Framerate (VFR) in real ? is it possible? what programs would I use? What is the point of Variable Framerate (VFR?)

[bond]

splitted from the mp4 faq

from my point of view the faq is clear about the tools usable to create vfr streams in .mp4
an overall discussion of vfr would definitely go beyond the purpose of a container specific faq