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dockerfiles/audiowaveform/README.md
2015-08-15 10:05:14 +08:00

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audiowaveform

audiowaveform is a C++ command-line application that generates waveform data from either MP3, WAV, or FLAC format audio files. Waveform data can be used to produce a visual rendering of the audio, similar in appearance to audio editing applications.

Run

$ docker pull vimagick/audiowaveform
$ alias awf='docker run --rm -v `pwd`:/work -w /work vimagick/audiowaveform'
$ awf -i input.mp3 -o output.png

Command line options

audiowaveform accepts the following command-line options:

Short Long Description
--help Show help message
-v --version Show version information
-i <filename> --input-filename <filename> Input mono or stereo audio (.wav or .mp3) or waveform data (.dat) file name
-o <filename> --output-filename <filename> Output waveform data (.dat or .json), audio (.wav), or PNG image (.png) file name
-z <level> --zoom <zoom> Zoom level (samples per pixel), default: 256. Not valid if --end or --pixels-per-second is also specified
--pixels-per-second <zoom> Zoom level (pixels per second), default: 100. Not valid if --end or --zoom is also specified
-b <bits> --bits <bits> Number of bits resolution when creating a waveform data file (either 8 or 16), default: 16
-s <seconds> --start <seconds> Start time (seconds), default: 0
-e <seconds> --end <seconds> End time (seconds). Not valid if --zoom is also specified
-w <width> --width <width> Width of output image (pixels), default: 800
-h <height> --height <height> Height of output image (pixels), default: 250
-c <scheme> --colors <scheme> Color scheme of output image (either 'audition' or 'audacity'), default: audacity
--border-color <color> Border color (in rrggbb[aa] hex format), default: set by --colors option
--background-color <color> Background color (in rrggbb[aa] hex format), default: set by --colors option
--waveform-color <color> Waveform color (in rrggbb[aa] hex format), default: set by --colors option
--axis-label-color <color> Axis label color (in rrggbb[aa] hex format), default: set by --colors option
--no-axis-labels Render PNG images without axis labels
--with-axis-labels Render PNG images with axis labels (default)