#4298: zoompan filter creates shaky image
------------------------------------+------------------------------------
Reporter: slhck | Owner: (none)
Type: defect | Status: open
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: zoompan | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
------------------------------------+------------------------------------
Comment (by David):
Adding bilinear interpolation to this filter to prevent the jitter should
be increased to priority critical.
The jitter makes the zoompan filter completely unusable for zooming into
the center of a video. By default, it's so jittery that it looks like I
deliberately added a shaking filter. For example, see this video I
exported locally on VideoGen: https://app.videogen.io/view/ksabnn. Even
with the trick of upscaling, zooming, and downscaling, the jitter is still
noticeable when looking closely.
I tried using the geq filter and doing the math for zooming myself, but
this is significantly slower. How is anyone supposed to use the zoompan
filter in its current state? Why doesn't zoompan have interpolation while
geq and many other filters do?
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4298#comment:10>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
