[FFmpeg-trac] #9410(avfilter:reopened): Problem in vidstabtransform

FFmpeg trac at avcodec.org
Sun Oct 10 16:43:15 EEST 2021

#9410: Problem in vidstabtransform
             Reporter:  Michael Koch  |                    Owner:  (none)
                 Type:  defect        |                   Status:  reopened
             Priority:  normal        |                Component:  avfilter
              Version:  git-master    |               Resolution:
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
Comment (by Michael Koch):

 With the ski.mkv video the no-data borders are also filled with the color
 of the border of the data area. That can be shown by drawing a red border
 around the frame, before applying vidstabtransform=crop=black. Black
 borders appear only when the shift is very large.

 ffmpeg -i ski.mkv -lavfi vidstabdetect -y dummy.mp4
 ffmpeg -i ski.mkv -lavfi
 drawbox=w=iw:h=ih:c=red,vidstabtransform=crop=black:optzoom=0 -y out.mp4
Ticket URL: <https://trac.ffmpeg.org/ticket/9410#comment:4>
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