Useful Mplayer/Mencoder Commands

mplayer/mencoder are powerful tools. This is a list of useful mplayer/mencoder commands.

Extract the audio, convert it to PCM and write the resulting wave file to audio.wav:

mplayer -vo null -hardframedrop -ao pcm:file=audio.wav video.avi

Convert .wav file to .mp3 file:

lame -h out.wav out.mp3

Preview a video composed of all jpeg files from the current folder at 15fps:

mplayer "mf://*.jpg" -mf fps=15

Create a 15fps video from all jpeg files of the current folder:

mencoder "mf://*.jpg" -mf fps=15 -ovc lavc -o ./output.avi

Cut a video from second 6 to second 206 (which is 200+6, the output.avi is 200 seconds long):

mencoder big-file.avi -ss 6 -endpos 200 -ovc copy -oac copy -o output.avi

Convert raw videos into ISO standard MPEG-4 (DivX 5, XVID compatible) videos:

mencoder source.avi -ovc lavc -oac lavc -ffourcc DX50 -lavcopts 
 -vf hqdn3d -o output.avi

Get informations about a video:

mplayer -frames 0 -identify ./video.avi

Show all mplayer filter list:

mplayer -vf help

Play audio files over ssh connection

ssh "cat audio.mp3" | mplayer -cache 8192 -

Play files from FTP:

wget -O - | mplayer -cache 8192 -

Repeat a file multiple times:

mplayer file1 -loop 2 file2 -loop 1 file3 -loop 4

Record stream:

mplayer -dumpstream -dumpfile output.rm -cache 4096 rtsp://

Update history:
Jun 23, 2010. Correct the errors about vcodec and endpos options.

Eric is a father and systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions expressed here are solely Eric's own and do not necessarily represent those of any third parties.

One Reply to “Useful Mplayer/Mencoder Commands”

Leave a Reply

Your email address will not be published. Required fields are marked *