[FFmpeg-user] How to add zoom in effect to a video?

Alfredo Aiello stuzzo at gmail.com
Mon Feb 9 10:54:03 CET 2015

yes, the scale filter avoid the shaky effect when I have an input image, 
but with an input video, problem is the same.

I red your suggest in this ticket https://trac.ffmpeg.org/ticket/4298.
In a comment, slhck suggests to use ffplay instead.

On 02/09/2015 10:42 AM, Carl Eugen Hoyos wrote:
> Alfredo Aiello <stuzzo <at> gmail.com> writes:
>> ffmpeg -i small.mp4
>> -vf "zoompan=z='min(zoom+0.0015,1.5)':d=125:s=640x360"
> Does it make a difference if you insert the scale filter?
> -vf "scale=640x360,zoompan=z='min(zoom+0.0015,1.5)':d=125:s=640x360"
> Carl Eugen
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