HTCondorWiki: Hosting Video

 {endcode}
 
 Be sure to also include links to download the file and to the slides.
+
+
+{section: Building ffmpeg}
+
+Stock ffmpeg installs may not have functionality you require.  The following, derived from https://trac.ffmpeg.org/wiki/CompilationGuide/Centos worked on a CSL RHEL 6 computer as of October 2014.
+
+{code}
+DST=/afs/cs.wisc.edu/u/a/d/adesmet/bin/opt/ffmpeg-git-20140805
+PATH=$DST/bin:$PATH
+
+mkdir ffmpeg-install
+cd ffmpeg-install
+
+curl -O http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
+tar xzvf yasm-1.2.0.tar.gz
+pushd yasm-1.2.0
+./configure --prefix=$DST
+make && make install && make distclean
+popd
+
+git clone --depth 1 git://git.videolan.org/x264
+pushd x264
+./configure --prefix=$DST --enable-static
+make && make install && make distclean
+popd
+
+git clone --depth 1 git://git.code.sf.net/p/opencore-amr/fdk-aac
+pushd fdk-aac
+autoreconf -fiv
+./configure --prefix=$DST --disable-shared
+make && make install && make distclean
+popd
+
+curl -L -O http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz
+tar xzvf lame-3.99.5.tar.gz
+pushd lame-3.99.5
+./configure --prefix=$DST --disable-shared --enable-nasm
+make && make install && make distclean
+popd
+
+curl -O http://downloads.xiph.org/releases/opus/opus-1.1.tar.gz
+tar xzvf opus-1.1.tar.gz
+pushd opus-1.1
+./configure --prefix=$DST --disable-shared
+make && make install && make distclean
+popd
+
+curl -O http://downloads.xiph.org/releases/ogg/libogg-1.3.1.tar.gz
+tar xzvf libogg-1.3.1.tar.gz
+pushd libogg-1.3.1
+./configure --prefix=$DST --disable-shared
+make && make install && make distclean
+popd
+
+curl -O http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.4.tar.gz
+tar xzvf libvorbis-1.3.4.tar.gz
+pushd libvorbis-1.3.4
+./configure --prefix=$DST --with-ogg=$DST --disable-shared
+make && make install && make distclean
+popd
+
+git clone --depth 1 https://chromium.googlesource.com/webm/libvpx.git
+pushd libvpx
+./configure --prefix=$DST --disable-examples
+make && make install && make distclean
+popd
+
+
+git clone --depth 1 git://source.ffmpeg.org/ffmpeg
+pushd ffmpeg
+PKG_CONFIG_PATH="$DST/lib/pkgconfig"
+export PKG_CONFIG_PATH
+./configure --prefix=$DST --extra-cflags="-I$DST/include" --extra-ldflags="-L$DST/lib" --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264
+make && make install && make distclean
+popd
+
+# Excluded:
+# --enable-libass - subtitles
+# --enable-libfaac - AAC, dupe of libfdk_aac
+{endcode}