MPlayer / MEncoder

Paul Hänsch

FUB Course: Digital Video

Contents

• Intro
• MPlayer for Users
  • Shortcuts | Invocation | Output Drivers | Video Filters | Additional Codecs | Config Files
• MEncoder for Users
  • Invocation | Output Container | Video Codec | Audio Codec
• For Developers
  • Slave Mode | Status Line
• Future Development

Intro

http://mplayerhq.hu

MPlayer for Users - Shortcuts

• [Up], [Down], [Left], [Right], [PgUp], [PgDown] - Seek by 10 seconds, 1 minute or 10 minutes
• [space], m, f - Toggle pause, mute, fullscreen
• 9, 0 - Adjust volume
• o, v - Toggle OSD, subtitles
• # - Cycle through audio channels (languages)
• +, - - Adjust audio-/video- delay
• q - quit

MPlayer for Users - Invocation

Simple files:

mplayer video1.avi video2.mkv dvdrip.iso

• supports a lot of video file formats including dvd- and cd- images

Web-URL:

mplayer http://example.com/video.mpg

• also supports: FTP, RTSP, SMB, …

MPlayer for Users - Invocation

Image sequence:

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

• supports jpeg, tga, png, …

Webcam, DVD, AudioCD:

mplayer dvd://1 cdda://0 tv:// -dvd-device /dev/dvd -cdrom-device /dev/cdrom -tv device=/dev/video0

• different inputs in one line if you like

MPlayer for Users - Invocation

Play in fullscreen, start playback at 1 hour, 22 minutes

mplayer -fs movie.mp4 -ss 4920

MPlayer for Users - Output Drivers

Video Output

mplayer -novideo 
mplayer -vo matrixview:cols=48:rows=32

• null - Decode video, but do not display
• xv, x11 - Accelerated and unaccelerated X11 output
• fbdev, fbdev2 - Framebuffer output (works on linux text terminals)
• directx, quartz - MS Windows and Mac OS X video systems
• vdpau - Hardware accellerated decoding
• gif89a - Animated gif
• png, jpeg, pnm, … - Image Sequence

MPlayer for Users - Output Drivers

Audio Output

mplayer -nosound
mplayer -ao pulse:example.com

• null - Decode audio, but do not play
• alsa - Standard Linux sound system
• pulse - Use pulseaudio service
• pcm - PCM/WAVE file

MPlayer for Users - Video Filters

mplayer -vf scale=1280:600,crop=400:200,mirror video.mpeg

mplayer -vf-add scale=1280:600 -vf-add crop=400:200 -vf-add mirror video.mpeg

• lots of filters for postprocessing, color adjustment, resizing, etc…

MPlayer for Users - Additional Codecs

• support for binary codecs taken from QuickTime, RealPlayer, Windows Media Player, etc…
• just put the codecs into /usr/lib/codecs

MPlayer for Users - Config Files

~/.mplayer/config

cache=8192
cache-min=2

fs=yes
vf=scale=-2:600
vo=x11
ao=pulse:Jupiter
hardframedrop=yes
subfont-osd-scale=2
osdlevel=3
heartbeat-cmd="xscreensaver-command -deactivate >/dev/null 2>/dev/null &"

MEncoder for Users - Invocation

mencoder -oac lavc -ovc lavc -of avi -o Out.avi In1.mpg In2.mkv

mencoder -vf mirror In1.avi In2.avi -o Out.avi
mencoder In1.avi -vf mirror In2.avi -o Out.avi

MEncoder for Users - Output Container

mencoder -of avi
mencoder -of mpeg
mencoder -of lavf -lavfopts format=...

MEncoder for Users - Video Codec

mencoder -ovc help
mencoder -ovc lavc -lavcopts vcodec=...
mencoder -ovc x264enc

MEncoder for Users - Audio Codec

mencoder -nosound mencoder -oac help mencoder -oac lavc mencoder -oac twolame mencoder -oac mp3lame …

For Developers - Slave Mode

mplayer -slave

For Developers - Status Line

Future Development

• new video standards
• MPlayer2 fork

Thank You!

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