According to http://ffmpeg.org/ffmpeg-filters.html#crop the expression variables for t (time in seconds) and n (frame number) are available.
# X distance per frame = (400 - 0) / (10 * 25) = 1.6 # Y distance per frame = (10 - 0) / (10 * 25) = 0.04 I suspect you'll want something similar to the following. -vf "crop=enable=lt(t\,10):w=1200:h=980, crop=enable=between(t\,10\,20):w=1200:h=980:x='(t-10)*1.6':y='(t-10)*.04', crop=enable=gte(t\,20):w=1200:h=980:x=400:y=10" -----Original Message----- From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of Paul B Mahol Sent: Wednesday, 27 January 2016 05:35 To: FFmpeg user questions Subject: Re: [FFmpeg-user] How to pan hozitonally on a video? On 1/26/16, Sub Phil <phil40...@gmail.com> wrote: > RE:https://www.ffmpeg.org/ffmpeg-filters.html#zoompan > > Hi, > > I have a 30 sec video in 1920x1080@25fps > > I want to pan/crop with a constant rectangle of 1200x980 > > It rectangle starts at position (0,0) till t=10 sec than from t=10 sec > to t=20sec I wish my rectangle to move at a constant/linear speed from > position (0,0) to (400,10) > > Than from t=20 sec onwards, rectangle stays at (400,10). > > How can I do that?? Using crop filter and some kind of expressions for x and y. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
