[FFmpeg-trac] #6816(undetermined:new): Combine "vidstabdetect" or "vidstabtransform" with scene detection

[FFmpeg]

#6816: Combine "vidstabdetect" or "vidstabtransform" with scene detection
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             Reporter:  JouMxyzptlk  |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  libvidstab   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by JouMxyzptlk):

 The hacking of the transform.trf does not really solve the issue, it just
 makes the jumps a bit less. Phase two of deshaking should get a "scene
 change thresold".
 And an option to ignore frames when the camera moves left, but a person
 near the camera moves right, i.e. when two areas move in different
 directions, ignore those frames else the deshaking may take care of the
 wrong region.

 So options would be:
 "scenethresold=50" which sets it to ignore frames (i.e. treat them as
 scene change) with "LM +-50 +-50", and as second option like
 "blockthresold=30" to discard block which have "LM +-30 +-30" if there is
 no scene change detected.
 Which value might be right for each video would be to the user test out.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6816#comment:3>
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