[FFmpeg-user] Extract N-frames sequence from input file to output with specified framerate.

[Carl Eugen Hoyos]

Vasiliy Volkov <volk.vasiliy <at> gmail.com> writes:

> the output framerate is not as I need (I need it to 
> be as normal like 25 fps):
> 
> ffmpeg -i source.mkv -vf "fps=fps=1/<Period>" 
> -vframes 1000 -qp 0 -an -f yuv4mpegpipe pipe:1 > frames.yuv

You can specify a frame rate for your output file 
with "-r 25".

There is also the select filter which may do what 
you want.

Carl Eugen