[FFmpeg-user] force/replace colors of waveform (showwaves)? (and 60fps at 720p)?

Nicolas George george at nsup.org
Sun Apr 20 13:57:26 CEST 2014

Le primidi 1er floréal, an CCXXII, DopeLabs a écrit :
> also... when -r 60 is specified before -filter_complex, the output is 60
> fps, but showwaves still only outputs at 34fps (@720p)(even if r=60 is
> specified in the filter_complex), but if i change to showwaves=s=720x405,
> showwaves outputs a proper 60fps... 
> not sure at what point showwaves decides to not try for 60fps anymore, but
> id like to avoid generating a smaller sized true 60fps file, and then
> scaling the rest of the way to reach my target of 720p... any ideas?

Your input has 44100 samples per second, showwaves plots 1280 samples per
frame, that makes 44100/1280. = 34.453125 frames per second.

With the 720 resolution, you get 61.25, not 60.


  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-user/attachments/20140420/6c82d189/attachment.asc>

More information about the ffmpeg-user mailing list