silence

Another Video -> GIF creation tool. Similar to gify except:

• It only uses ffmpeg, so it's 10x faster.
• It uses ffmpeg's new palettegen to create better GIFs.
• It will eventually support APNG and animated WebP when ffmpeg supports it.
• Requires the latest version of ffmpeg.

It uses settings from this post: http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html

It also supports slicing videos into (silent) videos in the encoding of your choice:

• vp8 (webm)
• vp9
• x264 (mp4)
• x265

API

silence([input], options).then( options => )

Options:

• .input - input filename
• .output - output filename
• .format=gif - alternative to .output. Creates a specific format.
• .fps=20 - number of frames per second
• .start_time=0 - a string of the form hh:mm:ss[.ms] or in milliseconds
• .max_size=320 - maximum dimension of the file
• .duration - milliseconds

options is returned, mutated, with .output always defined.