[FFmpeg-user] Extract frames from an AVI and then frames to AVI

[Moritz Barsnick]

Hi Virgil,

On Fri, Aug 08, 2014 at 17:43:40 +0200, Virgil Stokes wrote:
> I would like to know a method that could be used to first, extract frames from 
> an AVI file

$ ffmpeg -i in.avi -f image2 image%05d.png

> and then reconstruct the AVI from these extracted frames.

$ ffmpeg -f image2 -i image%05d.png out.avi

This is just a very simple example.

Note that it only partially "reconstructs". Sound isn't taken into
consideration, and you're losing all information about frame timing,
which is relevant amongst others for fps, variable frame rates, and
audio sync.

You also need to tune your video codec and its quality. And possibly
the fps...

Moritz