#1686: Dataloss because ffmpeg manpage about -passlogfile is wrong
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Reporter: jonb | Owner:
Type: defect | Status: new
Priority: minor | Component:
Version: unspecified | documentation
Keywords: passlogfile | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by jonb):
Excuse me, but dataloss is NEVER EVER minor. Dataloss is a serious problem
and the documentation and/or code should be changed quickly.
I can confirm that I did not overwrite the input source file with these
commands:
ffmpeg -i 00004.MTS -vcodec mpeg4 -sameq -acodec copy -deinterlace -r 25
-s 1440x1080 -t 1537 -pass 1 -an -passlogfile 00004.MTS -f rawvideo -y
/dev/null
ffmpeg -i 00004.MTS -vcodec mpeg4 -sameq -acodec copy -deinterlace -r 25
-s 1440x1080 -t 1537 -pass 2 -an -passlogfile 00004.MTS -f rawvideo -y
/dev/null
ffmpeg -i 00004.MTS -vcodec mpeg4 -sameq -acodec copy -deinterlace -r 25
-s 1440x1080 -t 1537 -pass 3 -passlogfile 00004.MTS 00004.MTS.t1537.mp4
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1686#comment:2>
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