Workflow process that calls FFMPEG on the command line to create a storyboard
of a video. A storyboard consists of several key frames extracted from the
video. The key frames will be stored as subassets of the video asset. Also, a
merged film strip of the key frames will be stored as a storyboard rendition
of the video asset.
Process arguments / configuration:
frames:{Number} The number of key frames to use for the strip. The frames will be evenly distributed
over the length of the movie. Default number of frames is 10.
E.g.: frames:10
start:{Number} The start position in seconds for the first key frame. Default is 0. Formats supported:
plain number (seconds)
E.g.: start:5
maxWidth:{Number} The maximum width in px of key frames. Default: 320 px. Aspect ratio is kept.
maxHeight:{Number} The maximum height in px of key frames. Default: 240 px. Aspect ratio is kept.
upScale:{Boolean} Whether to upscale key frames if the source video is smaller than maxWidth/maxHeight.
[{time}],[{time}],.. Define number and time stamp of every key frame individually. Using this option
causes the "frames" and "start" options to be ignored. Time formats supported:
hh:mm:ss or plain number (seconds)
E.g.: [00:05:00],[00:10:00]
Examples:
- Create 10 frames, starting with the first at 12 seconds into the movie.
frames:10,start:12
- Create 10 frames, each 100 x 80 px, upscaled:
frames:10,maxWidth:100,maxHeight:80,upScale:true
- Create 5 frames, each at a defined position, each 100 x 80 px, upscaled:
maxWidth:100,maxHeight:80,[00:05:00],[00:10:00],[00:15:00],[00:20:00],[00:25:00]
Will create thumbnails of size 140x100 and 48x48 with a black
letterbox/pillarbox
This will only happen for assets having a video-based mime-type, others are
ignored.