CODEWITHSUNDEEP
audioffmpegwaveform
francis
francis

Reputation: 75

ffplay - how to get only single channel audio from video

For a video file, how can I only get the showwave filter instead of both showwave n spectrum.

ffplay -f lavfi 'amovie=abc.mp4,asplit=3[out1][a][b]; [a]showwaves=s=640x240[waves]; [b]showspectrum=s=640x240[spectrum]; [waves][spectrum] vstack[out0]'

And this shows the video as audio waveform but i get 2 identical waveform (most prob left/right) ffplay - showmode 1 abc.mp4

Upvotes: 1

Views: 2651

Answers (1)

Gyan
Gyan

Reputation: 93271

Use

ffplay -f lavfi 'amovie=abc.mp4,asplit=2[out1][waves];[waves]pan=1c|c0=c0,showwaves=s=640x240[out0]'

The pan filter here keeps only the first channel, which is, likely, the Left channel. Change c0=c0 to c0=c1 to keep the Right only.

Upvotes: 2

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