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doc/filters: add one more zoompan example

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
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Paul B Mahol 2015-06-12 17:33:13 +00:00
parent 7e240f9581
commit ce3bcb9479
1 changed files with 6 additions and 0 deletions
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doc/filters.texi
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@ -10149,6 +10149,12 @@ Zoom-in up to 1.5 and pan at same time to some spot near center of picture:
@example
zoompan=z='min(zoom+0.0015,1.5)':d=700:x='if(gte(zoom,1.5),x,x+1/a)':y='if(gte(zoom,1.5),y,y+1)':s=640x360
@end example
@item
Zoom-in up to 1.5 and pan always at center of picture:
@example
zoompan=z='min(zoom+0.0015,1.5)':d=700:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'
@end example
@end itemize
@c man end VIDEO FILTERS