[FFmpeg-user] Why the fps of concatenate video file change with old video file?

[Cley Faye]

2016-06-23 11:12 GMT+02:00 cuizhe <cuizhe960307 at hotmail.com>:

> >ffmpeg -r 25 -f concat -i 1.txt -c copy output.wmv
>
> 1.txt:
> file g:\1.wmv
> file g:\2.wmv
>
> It works. But the fps of output.wmv is 30.
> How can I maintain the fps of concatenate video file?
>

You should post the full log, it most likely contains the answer.