NORDLICHT(1) User Commands NORDLICHT(1)NAMEnordlicht - creates colorful barcodes from video files
SYNOPSISnordlicht [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 counter‐
clockwise 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)
EXAMPLESnordlicht 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.
nordlicht 0.4.4 February 2016 NORDLICHT(1)
