[FFmpeg-trac] #9447(avfilter:closed): avfilter/vf_v360 interprets commands as relative rotation offsets

FFmpeg trac at avcodec.org
Mon Oct 18 22:02:11 EEST 2021

#9447: avfilter/vf_v360 interprets commands as relative rotation offsets
             Reporter:  Saul Baker  |                    Owner:  (none)
                 Type:  defect      |                   Status:  closed
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:  invalid
             Keywords:  v360        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
Comment (by Michael Koch):

 I did spend 2 hours testing the reset_rot option with an old example that
 did work before the rotations were changed from absolute to relative. In
 some cases it works, however in some other cases it fails and I don't yet
 understand why. I doubt that anybody will use it, because it's too
 complicated now.
 I'm sure it would have been much better to keep the absolute rotations as
 they were, and add new options (with new names) for relative rotations. An
 open question is which kind of rotation has priority, if both are
 It's confusing to have an option with different behaviour in the command
 line / in sendcmd. No other filter has such behaviour. The sooner this is
 corrected, the better it is.

Ticket URL: <https://trac.ffmpeg.org/ticket/9447#comment:20>
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