My MediaTomb, works for XviD and FLAC

config.xml

<?xml version="1.0" encoding="UTF-8"?>
<config version="2" xmlns="http://mediatomb.cc/config/2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://mediatomb.cc/config/2 http://mediatomb.cc/config/2.xsd">
  <server>
    <protocolInfo extend="yes"/><!-- For PS3 support change to "yes" -->
    <pc-directory upnp-hide="yes"/>
    <ui enabled="yes" show-tooltips="yes">
      <accounts enabled="no" session-timeout="30">
        <account user="mediatomb" password="CHANGETHIS"/>
      </accounts>
    </ui>
    <name>Jadzia</name>
    <udn>uuid:CHANGETHIS</udn>
    <home>/etc/mediatomb</home>
    <webroot>/usr/share/mediatomb/web</webroot>
    <storage caching="yes">
      <sqlite3 enabled="yes">
        <database-file>mediatomb.db</database-file>
      </sqlite3>
      <mysql enabled="no">
        <host>localhost</host>
        <username>mediatomb</username>
        <database>mediatomb</database>
      </mysql>
    </storage>
    <extended-runtime-options>
     <ffmpegthumbnailer enabled="yes">
      <thumbnail-size>128</thumbnail-size>
      <seek-percentage>5</seek-percentage>
      <filmstrip-overlay>yes</filmstrip-overlay>
      <workaround-bugs>no</workaround-bugs>
     </ffmpegthumbnailer>
     <mark-played-items enabled="yes" suppress-cds-updates="no">
      <string mode="prepend">*</string>
      <mark><content>video</content></mark>
     </mark-played-items>
    </extended-runtime-options>

  </server>
  <import hidden-files="no">
    <scripting script-charset="UTF-8">
      <common-script>/usr/share/mediatomb/js/common.js</common-script>
      <playlist-script>/usr/share/mediatomb/js/playlists.js</playlist-script>
      <virtual-layout type="builtin">
        <import-script>/usr/share/mediatomb/js/import.js</import-script>
      </virtual-layout>
    </scripting>
    <autoscan use-inotify="auto">
     <directory location="/media/music/flac/" mode="inotify" interval="3600" level="full" recursive="yes" hidden-files="no"/>
     <directory location="/media/tv/films/" mode="inotify" interval="3600" level="full" recursive="yes" hidden-files="no"/>
    </autoscan>
    <mappings>
      <extension-mimetype ignore-unknown="no">
        <map from="mp3" to="audio/mpeg"/>
        <map from="ogg" to="application/ogg"/>
        <map from="asf" to="video/x-ms-asf"/>
        <map from="asx" to="video/x-ms-asf"/>
        <map from="wma" to="audio/x-ms-wma"/>
        <map from="wax" to="audio/x-ms-wax"/>
        <map from="wmv" to="video/x-ms-wmv"/>
        <map from="wvx" to="video/x-ms-wvx"/>
        <map from="wm" to="video/x-ms-wm"/>
        <map from="wmx" to="video/x-ms-wmx"/>
        <map from="m3u" to="audio/x-mpegurl"/>
        <map from="pls" to="audio/x-scpls"/>
        <map from="flv" to="video/x-flv"/>
        <map from="avi" to="video/divx"/>
        <map from="vob" to="video/mpeg"/>
      </extension-mimetype>
      <mimetype-upnpclass>
        <map from="audio/*" to="object.item.audioItem.musicTrack"/>
        <map from="video/*" to="object.item.videoItem"/>
        <!-- <map from="image/*" to="object.item.imageItem"/> -->
      </mimetype-upnpclass>
      <mimetype-contenttype>
        <treat mimetype="audio/mpeg" as="mp3"/>
        <treat mimetype="application/ogg" as="ogg"/>
        <treat mimetype="audio/x-flac" as="flac"/>
        <!-- <treat mimetype="image/jpeg" as="jpg"/> -->
        <treat mimetype="audio/x-mpegurl" as="playlist"/>
        <treat mimetype="audio/x-scpls" as="playlist"/>
        <treat mimetype="audio/x-wav" as="pcm"/>
        <treat mimetype="audio/L16" as="pcm"/>
        <treat mimetype="video/x-msvideo" as="avi"/>
      </mimetype-contenttype>
    </mappings>
  </import>
  <transcoding enabled="yes">
    <mimetype-profile-mappings>
      <transcode mimetype="video/x-flv" using="vlcmpeg"/>
      <transcode mimetype="application/ogg" using="vlcmpeg"/>
      <transcode mimetype="application/ogg" using="oggflac2raw"/>
      <transcode mimetype="audio/x-flac" using="audio-flac"/>
    </mimetype-profile-mappings>
    <profiles>
     <profile name="audio-flac" enabled="yes" type="external">
      <mimetype>audio/L16</mimetype>
      <accept-url>no</accept-url>
      <first-resource>yes</first-resource>
      <hide-original-resource>yes</hide-original-resource>
      <accept-ogg-theora>no</accept-ogg-theora>
      <sample-frequency>44100</sample-frequency>
      <audio-channels>2</audio-channels>
      <agent command="flac" arguments="-dfs --force-raw-format --endian=big --sign=signed -o %out %in"/>
      <buffer size="1048576" chunk-size="131072" fill-size="262144"/>
     </profile>
      <profile name="oggflac2raw" enabled="no" type="external">
        <mimetype>audio/L16</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <accept-ogg-theora>no</accept-ogg-theora>
        <agent command="ogg123" arguments="-d raw -f %out %in"/>
        <buffer size="1048576" chunk-size="131072" fill-size="262144"/>
      </profile>
      <profile name="vlcmpeg" enabled="no" type="external">
        <mimetype>video/mpeg</mimetype>
        <accept-url>yes</accept-url>
        <first-resource>yes</first-resource>
        <accept-ogg-theora>yes</accept-ogg-theora>
        <agent command="vlc" arguments="-I dummy %in --sout #transcode{venc=ffmpeg,vcodec=mp2v,vb=4096,fps=25,aenc=ffmpeg,acodec=mpga,ab=192,samplerate=44100,channels=2}:standard{access=file,mux=ps,dst=%out} vlc:quit"/>
        <buffer size="14400000" chunk-size="512000" fill-size="120000"/>
      </profile>
    </profiles>
  </transcoding>
 <lastfm enabled="yes">
  <username>johndrinkwater</username>
  <password>CHANGETHIS</password>
 </lastfm>
</config>