[FFmpeg-user] How to extract frames and re-insert to video ?

[Lou]

On Wed, 16 Sep 2015 01:37:33 -0700 (PDT)
ankur456799 <ankur456799 at gmail.com> wrote:

> Hi i am using this i have video 5 min long and i want overlay only for 5 sec 
> 
> -i input.mp4  -i 34232944.png -filter_complex " [0:v][1:v]
> overlay=0:0:enable='between(t,5,10)',fade=t=in:st=5:d=1,
> fade=t=out:st=10:d=1  '" -c:v libx264 -crf 23 output.mp4 

The complete console output is missing which provides useful
information. I don't want to give any suggestions without it.

> but this process takes lots of time and i think it creates whole video again
> ... so i need some thing very fast.. 
> thanks for replying

Filtering requires encoding.