What makes these tools unique are the ratecontrol systems which achieve those goals.

This package is based on my original collection of Video Transcoding Scripts written in Bash. While still available online, those scripts are no longer in active development. Users are encouraged to install this Ruby Gem instead.

Most of the tools in this package are essentially intelligent wrappers around Open Source software like HandBrake, FFmpeg, MKVToolNix, and MP4v2. And they're all designed to be executed from the command line shell:

transcode-video Transcode video file or disc image directory into format and size similar to popular online downloads.

detect-crop Detect crop values for video file or disc image directory.

convert-video Convert video file from Matroska to MP4 format or from MP4 to Matroksa format without transcoding video.

query-handbrake-log Report information from HandBrake-generated .log files.