#2631: fade filter offset from the end of stream
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Reporter: burek | Owner:
Type: enhancement | Status: open
Priority: wish | Component: avfilter
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by richardacre):
Suggest a more flexible approach would be to allow a negative start-frame
to count back from the end but also allow the second parameter to be
omitted to also signify "from here until the end" ... so that in the 200
frame video example (above) the following would all have the same effect:
fade=out:155:45
fade=out:-45:45
fade=out:155
fade=out:-45
Same timekeeping could also apply to any filter (e.g. show a watermark for
final X frames and audio fades)
This would certainly help me, as I am currently tasked with watermarking
and processing several dozen videos and would love to be able to automate
all of it in one simple script, rather than having to determine the length
of each clip and then tailor the parameters individually!
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2631#comment:2>
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