This is the command nordlicht that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
nordlicht - creates colorful barcodes from video files
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
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