other versions
- bullseye 0.4.5-2
| 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 (ratio between 0 and 1)
- --end=FLOAT
- specify where to end the barcode (ratio 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.nordlicht.png of default size
- nordlicht video.mp4 -s vertical
- compress individual frames to columns
- nordlicht video.mp4 -w 1000 -h 1000 -o barcode.png
- override size and name of the output file
AUTHOR¶
Written by Sebastian Morr and contributors.
| September 2019 | nordlicht 0.4.5 |