Mplayer

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Installation

svn checkout svn://svn.mplayerhq.hu/mplayer/trunk mplayer-svn
cd mplayer-svn
CFLAGS="-fomit-frame-pointer -O3 -I/opt/lame/include -I/opt/xvid/include" LDFLAGS="-L/opt/lame/lib \
        -L/opt/xvid/lib" ./configure --prefix=/opt/mplayer --enable-3dnow --enable-3dnowext --enable-mmx \
        --enable-mmxext --enable-shm --enable-sse --enable-theora --enable-liba52 --enable-mp3lib
make
sudo make install

See these links as to why we have to use all these extra flags:

Usage

To generate an MPEG-4 avi file from existing .png frames:

mencoder mf://*.png -mf fps=24:type=png -ovc lavc -oac copy -o movie.avi

To generate a flash video:

mencoder $file -ofps 25 -o $file.flv -of lavf -oac mp3lame -lameopts abr:br=64 -srate 22050 \
               -ovc lavc -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames \
               -lavcopts vcodec=flv:keyint=50:vbitrate=700:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 \
               -vf scale=320:240

To generate screenshots[1], start mplayer with:

mplayer -vf screenshot file.mpg

Then, while the file is playing, press "s" to generate a screenshot in the current directory. Press capital "S" to generate continuous screenshots.

Links

References