mencoder

encodes video from MPlayer

TLDR

Convert video

$ mencoder [input.avi] -o [output.mp4] -ovc lavc -oac mp3lame

Extract audio

$ mencoder [video.avi] -o [audio.mp3] -ovc copy -oac mp3lame

Resize video

$ mencoder [input.avi] -o [output.avi] -vf scale=[640:480] -ovc lavc -oac copy

Two-pass encoding

$ mencoder [input.avi] -o /dev/null -ovc lavc -lavcopts vpass=1 && mencoder [input.avi] -o [output.avi] -ovc lavc -lavcopts vpass=2

Join videos

$ mencoder -ovc copy -oac copy -o [joined.avi] [file1.avi] [file2.avi]

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 Superseded by FFmpeg in many cases.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.

INSTALL

sudo apt install mencoder

sudo pacman -S mencoder

sudo apk add mplayer

brew install mplayer

nix profile install nixpkgs#mplayer

CAVEATS

MPlayer project (legacy). FFmpeg often preferred. Complex options.

HISTORY

mencoder was the encoding companion to MPlayer, providing video conversion capabilities.