DragonFly On-Line Manual Pages

NORDLICHT(1)                     User Commands                    NORDLICHT(1)

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

AUTHOR
       Written by Sebastian Morr and contributors.

nordlicht 0.4.4                  February 2016                    NORDLICHT(1)