[FFmpeg-user] Fast seeking formats for storing live video

[Roger Pack]

> -ss is confusing, and maybe it could be better named.  But I really don't
> understand why, for me, just copying the file with ffmpeg should speed up
> taking a snap from many minutes (unacceptable) to a second or two (perfect).
> Is there something that I could do, for instance in the way I close the
> file, that would make a difference.  Is there an index to key frames held in
> the zeroth record, for instance, that is not being written properly by me
> but is by ff?

What if you "just close" the file before using it with ffmpeg, is it
suddenly fast?
-r