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Man Pages


Manual Reference Pages  -  NORDLICHT (1)

NAME

nordlicht - creates colorful barcodes from video files

CONTENTS

Synopsis
Options
Examples
Author

SYNOPSIS

nordlicht [OPTION]... VIDEOFILE

OPTIONS

-w, --width=INT
  set the barcode’s width; by default it’s "height*10", or 1920 pixels, if both are undefined
-h, --height=INT
  set the barcode’s height; by default it’s "width/10"
-o, --output=FILENAME
  set output filename, the default is VIDEOFILE.png; when you specify an *.bgra file, you’ll get a raw 32-bit BGRA file that is updated as the barcode is generated
-s, --style=STYLE
  default is ’horizontal’, see "Styles" section below. You can specify more than one style, separated by ’+’, to get multiple tracks
--start=FLOAT
  specify where to start the barcode (in percent between 0 and 1)
--end=FLOAT
  specify where to end the barcode (in percent between 0 and 1)
-q, --quiet
  don’t show progress indicator
--help display this help and exit
--version
  output version information and exit

    Styles:

horizontal
  compress frames to vertical lines and append them
vertical
  compress frames to horizontal lines and rotate them counterclockwise by 90 degrees
slitscan
  take single columns while constantly moving to the right (and wrapping back to the left)
middlecolumn
  take the middlemost column of each frame
thumbnails
  display small thumbnails at regular intervals
spectrogram
  spectrogram of the first audio track (not all sample formats are supported yet)

EXAMPLES

nordlicht video.mp4
  generate video.mp4.png of 1000 x 100 pixels size
nordlicht video.mp4 --style=vertical
  compress individual frames to columns
nordlicht video.mp4 -w 1920 -h 200 -o barcode.png
  override size and name of the output file

AUTHOR

Written by Sebastian Morr and contributors.
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nordlicht 0.4.4 NORDLICHT (1) April 2016

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