mencoder
encodes video from MPlayer
TLDR
Convert video
$ mencoder [input.avi] -o [output.mp4] -ovc lavc -oac mp3lame
Extract audiocopy
$ mencoder [video.avi] -o [audio.mp3] -ovc copy -oac mp3lame
Resize videocopy
$ mencoder [input.avi] -o [output.avi] -vf scale=[640:480] -ovc lavc -oac copy
Two-pass encodingcopy
$ mencoder [input.avi] -o /dev/null -ovc lavc -lavcopts vpass=1 && mencoder [input.avi] -o [output.avi] -ovc lavc -lavcopts vpass=2
Join videoscopy
$ mencoder -ovc copy -oac copy -o [joined.avi] [file1.avi] [file2.avi]
copy
SYNOPSIS
mencoder [options] input -o output
DESCRIPTION
mencoder encodes video from MPlayer. It converts between formats and applies filters.The tool is part of MPlayer project. Superseded by FFmpeg in many cases.
PARAMETERS
INPUT
Input media file.-o FILE
Output file.-ovc CODEC
Video codec.-oac CODEC
Audio codec.-vf FILTERS
Video filters.--help
Display help information.
CAVEATS
MPlayer project (legacy). FFmpeg often preferred. Complex options.
HISTORY
mencoder was the encoding companion to MPlayer, providing video conversion capabilities.