#11070: showwaves filter doesn't work any more
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Reporter: Michael | Type: defect
Koch |
Status: new | Priority: normal
Component: avfilter | Version: git-
| master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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This is an example from chapter 3.48 in my book:
http://www.astro-electronic.de/FFmpeg_Book.pdf
I'm sure it did work some time ago, when I wrote this chapter. Now it
doesn't work any more. The output is only a line.
rem Create a sample waveform:
ffmpeg -f lavfi -i sine=250:b=2 -t 0.2 -y sine.wav
rem Convert the waveform to an image:
ffmpeg -i sine.wav -lavfi showwaves=n=15:mode=p2p:draw=full -frames 1 -y
waveform.png
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Ticket URL: <https://trac.ffmpeg.org/ticket/11070>
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