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*mplayer - command line driven video and audio player#mplayer - command line driven video and audio player*mencoder - video encoder and converter#mencoder - video encoder and converter*gmplayer - MPlayer with a graphical user interface#gmplayer - MPlayer with a graphical user interface== [http://www.mplayerhq.hu/design7/news.html MPlayer] ==== mplayer ==Open Analog TV Tuner or Capture Device mplayer tv:// -tv driver=v4l2:norm=NTSC:input=0:amode=1:outfmt=yv12:device=/dev/video0=== rtsp ===although mplayer does rtsp and depending on how it is compiled, it demonstrated poor ability with dropped frames compared to other options. mplayer rtsp://192.168.0.15:554obviously depends on encoding, however better results were achieved by alternatively using ffplay like this: ffplay rtsp://192.168.0.15:554ffplay uses FFmpeg libraries and the SDL library. On Ubuntu Mplayer has it's own FFmpeg implementation. Depending on your distribution and/or if you build from source your results will differ. You can build mplayer against the ffmpeg you have installed on your system. To do so add --disable-libavcodec_a --disable-libavutil_a --disable-libavformat_a --disable-libpostproc_a and --disable-libswscale_a to the mplayer configure line. To find out how your mplayer is linked type this: ldd `which mplayer`ldd `which mplayer`|grep ffmpeg== mencoder ==MEncoder can convert all the formats that MPlayer recognizes into a variety of compressed and uncompressed formats using different codecs. It can decode all media which MPlayer can decode and it supports all filters which MPlayer can use. Supported filters: cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibility of compression artifacts caused by MPEG compression (deblocking, deringing), automatic brightness/contrast enhancement (autolevel), sharpness/blur, denoising filters, several ways of deinterlacing, and reversing telecine.=== Rip / Encode a DVD ===You can use libavcodec to encode the video. Identify the source video. * Identify video framerate* Identify video frames/fields/pulldown/telecine* Encode constant bitrate (CBR), constant quantizer, and multipass* Crop black borders or letterboxing* select resolution and bitratesee: http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-dvd-mpeg4.html=== Rip from TV or Composite Source (V4L capture) ===Using mencoder for this is considered inefficient. It is possible to capture and encode live TV in [[H.264]]. mencoder -tv driver=v4l2:device=/dev/video0$DEV:fps=30000/1001:audiorate=32000:adevice=/dev/dsp$DEV:input=0:amode=1:normid=4:width=512:height=384-ovc x264 -x264encopts threads=2:bitrate=800:subq=2:me=2:frameref=4:8x8dct-oac mp3lame -lameopts cbr:br=96 -endpos $TIM -o $DIR/$FIL.avi tv:// > /dev/nullThis is a Qt5 front-end for mplayer. SMPlayer remembers the settings of all files you play including time position. Warning: The developers added an annoying DONATE NAG that occasionally pops up on launch. See [https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964359 Debian Bug report logs - #964359] and request to remove from Debian repository. Playback Speed Shortcuts Action SMPlayer Shortcut Keys Normal speed Backspace Half the speed of the video Shift + ] Double speed of video Shift + [ Zoom Shortcuts Action SMPlayer Shortcut Keys Zoom increase E Zoom decrease W Zoom 100% Ctrl + 1 Zoom 200% Ctrl + 2 Reset Shift + E Auto zoom Shift + W Zoom for 16:9 Shift + A Zoom for 2.35:1 Shift + S== Problems =====SMPlayer on X11 error Could not find the Qt platform plugin===Error experienced on Mint Linux when using MPlayer with SMPlayer front-end. This is on x11 and not Wayland. $ smplayer qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in "" This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Aborted (core dumped)The problem is caused by the environment variable LD_LIBRARY_PATH. Some poorly written software, such as newshosting, requires LD_LIBRARY_PATH set to an alternative location such as within the installation directory of newshosting, as an example. SMPlayer relies on access to the "correct" library, not the hacked up copy needed for poorly written software. Type this in console: unset LD_LIBRARY_PATHNow SMPlayer should function again. ''Be careful running hack-job poorly written scabware like newshosting or other software that requires you to substitute libraries in local directories over system libraries.'' On a related note, if you are using Wayland rather than x11 there are discussions online about SMPlayer compatibility not covered here.== References and External Resources ==* http://www.mplayerhq.hu/design7/news.html