showwavespic

Convert input audio to a single video frame, representing the samples waves.

The filter accepts the following options:

size, s

Specify the video size for the output. For the syntax of this option, check the (ffmpeg-utils)"Video size" section in the ffmpeg-utils manual. Default value is 600x240.

split_channels

Set if channels should be drawn separately or overlap. Default value is 0.

colors

Set colors separated by ’|’ which are going to be used for drawing of each channel.

scale

Set amplitude scale.

Available values are:

‘lin’

Linear.

‘log’

Logarithmic.

‘sqrt’

Square root.

‘cbrt’

Cubic root.

Default is linear.

draw

Set the draw mode.

Available values are:

‘scale’

Scale pixel values for each drawn sample.

‘full’

Draw every sample directly.

Default value is scale.

filter

Set the filter mode.

Available values are:

‘average’

Use average samples values for each drawn sample.

‘peak’

Use peak samples values for each drawn sample.

Default value is average.

Examples

• Extract a channel split representation of the wave form of a whole audio track in a 1024x800 picture using ffmpeg:

  ffmpeg -i audio.flac -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png