[FFmpeg-trac] #5931(avfilter:new): showwavespic, showspectrumpic innacurate length of resulting image

FFmpeg trac at avcodec.org
Mon Nov 7 21:12:40 EET 2016


#5931: showwavespic, showspectrumpic innacurate length of resulting image
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             Reporter:  jonata    |                     Type:  defect
               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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 Summary of the bug:showwavespic, showspectrumpic innacurate length of
 resulting image
 How to reproduce:

 {{{
 ffmpeg -i voice.wav -lavfi  showwavespic=scale=log:s=1000x180 waveform.png
 }}}

 In this example, the waveform is rendered correctly (end of waveform on
 image1.png). But if we increase the with to 10000, the end of waveform
 have an extra gap (end of waveform on image2.png).

 {{{
 ffmpeg -i voice.wav -lavfi  showwavespic=scale=log:s=10000x180
 waveform.png
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5931>
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