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.