Differences

This shows you the differences between two versions of the page.

--- mplayer:mplayer_usage [2007/12/01 11:14] – deva
+++ mplayer:mplayer_usage [2023/12/19 21:35] (current) – deva
@@ Line 1: / Line 1: @@
-=====MPlayer Usage=====
+=====MPlayer Usage (and some other video stuff)=====
 ====MPlayer====
+===Play video stream from webcam through v4l2===
+Make sure that mplayer is compiled with the v4l2 use flag.
+Make sure that the kerenl is compiled with video for linux support (Device Drivers ---> Multimedia support  ---> <*> Video For Linux) and with proper device driver support (in the subsections of aforementioned config section).
+<code>
+mplayer -fps 15 tv:// -tv driver=v4l2:device=/dev/video0
+</code>
+===Play MTS files===
+<code>
+mplayer -demuxer lavf -lavdopts threads=4:fast:skiploopfilter=all:skipframe=none -fps 25 SOMEFILE.MTS
+</code>
 ====MEncoder====
 ===Encoding an xvid file in 2 pass mode===
@@ Line 7: / Line 19: @@
 mencoder -o /dev/null -ovc xvid -xvidencopts pass=1 -nosound $FILENAME
 mencoder -o $OUTPUT -ovc xvid -xvidencopts bitrate=$BITRATE:pass=2 \
+    -oac mp3lame -lameopts vbr=3:br=112:mode=1 -af volnorm $FILENAME
+</code>
+===Encoding an h264 file===
+The following example will encode a file in h264 with normalized mp3 audio.
+<code>
+mencoder -o $OUTPUT -ovc x264 -x264encopts bitrate=$BITRATE:threads=3 \
     -oac mp3lame -lameopts vbr=3:br=112:mode=1 -af volnorm $FILENAME
 </code>
@@ Line 16: / Line 35: @@
          -of lavf -lavfopts format=swf $FILENAME -o $OUTPUT
 </code>
+===Making a DVD===
+http://tovid.wikia.com/wiki/Making_a_basic_DVD\\
+<del>A nice resource on the subject: http://gentoo-wiki.com/HOWTO_Create_a_DVD</del>\\
+Another resource http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-vcd-dvd.html
+===Grabbing from X11===
+Low resolution and low quality:
+<code>
+ffmpeg -f x11grab -s vga -i :0.0 /tmp/out.mpg
+</code>
+Better quality and higher resolution:
+<code>
+ffmpeg -r 24 -f x11grab -s 1024x768 -i :0.0 -threads 0 -vcodec libx264 -vpre lossless_ultrafast /tmp/out.mkv
+</code>
+===Fixing a noisy VHS rip===
+<code>
+-vf-add hqdn3d=10:10:20 -vf-add pp=fd
+</code>
+''hqdn3d'' is a denoise filter, ''pp=fd'' is a deinterlace filter.
+===Fixing annoying audio denormalisation===
+<code>
+-af volnorm=1,ladspa=/usr/lib/ladspa/fast_lookahead_limiter_1913.so:fastLookaheadLimiter:6:-0.1:0.01:20:0:0:0
+</code>
+Make sure that the swh-plugins ladspa package is installed on the system, and that mplayer is compiled with ladspa support.
+===Create Ogg/Theora file for the new html video tag===
+<code>
+ffmpeg2theora movie.avi
+mv movie.ogv movie.ogg
+</code>
+This is not exactly the mencoder approach... but this seemed to be the right place to put it.
+===Browser friendly videos===
+<code>
+ffmpeg -i my-original-video.wmv -vcodec libx264 -f mp4 -vb 1024k -preset slow my-new-video.mp4
+</code>
+Extended (pixel format conversion):
+<code>
+ffmpeg -i my-original-video.wmv -pix_fmt yuv420p -vcodec libx264 -f mp4 -vb 1024k -preset slow my-new-video.mp4
+</code>
+Extended (pixel format conversion and audio from 'other.mp4'):
+<code>
+ffmpeg -i my-original-video.wmv -i other.mp4 -map 0:0 -map 1:1 -pix_fmt yuv420p -vcodec libx264 -f mp4 -vb 1024k -preset slow my-new-video.mp4
+</code>
+===Fixed bitrate videos for Blender===
+<code>
+ffmpeg -i input.mp4 -vcodec libx264 -f mp4 -b 1200k -minrate 1200k -maxrate 1200k -preset slow output-fixed.mp4
+</code>
+https://wiki.gentoo.org/wiki/FFmpeg