#2484: atempo - low accuracy
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Reporter: bars | Owner: pkoshevoy
Type: defect | Status: closed
Priority: normal | Component: avfilter
Version: git-master | Resolution: fixed
Keywords: atempo | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by pkoshevoy):
Try a different file, it will probably be off by some other amount (unless
both files end the same way, same credits music, etc...)
If the error is about 1 frame or less (at 24fps) I don't really consider
it a bug. It's a limitation of the algorithm. The output from atempo is
off a little pretty much all of the time (unless the input is something
trivial, like silence). How much off the output is at any instance in
time depends on the waveform at that time point. Overall mean error will
be converging to 0.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2484#comment:17>
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