Psyk's stuff

After some mucking around, I'm successfully streaming from my Fedora/Linux PC to the PS3 over wireless.

A great guide to get this going is from the mediatomb website and more specifically the transcoding section:

http://mediatomb.cc/dokuwiki/transcoding:transcoding

Take note to adjust your config.xml.

The site describes using ffmpeg and/or VLC as the transcoding engine, but I've always liked mencoder as I'm more familiar with it and have a lot of profiles defined already in ~/.mplayer/mencoder.conf.

In regards to the mediatomb config.xml file (located at ~/.mediatomb/config.xml), like with most things, it needs to be heavily customised. I have a stack of AVI's that aren't in DivX/XviD format (which is what mediatomb tells the PS3 by default) and I have some AVI files which ffmpeg borks on... however, mencoder works very well on all these files. As a result, I transcode everything rather than pass the DivX/XviD to the PS3 - and surprisingly it streams well over wireless.

So here's the "~/bin/mencoder-tr" script I use that mediatomb calls to transcode the video's from the PC to a format the PS3 can understand. In this case I'm transcoding to a DVD compliant MPEG2 stream and AC3 audio in 720x576 format:

exec mencoder \
-oac lavc -ovc lavc \
-of mpeg \
-mpegopts format=dvd:tsaf \
-vf softskip,scale=720:576,hqdn3d,harddup \
-srate 48000 \
-af lavcresample=48000:volnorm=2 \
-ofps 25 \
-lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=5120:vstrict=0:keyint=15:vbitrate=5120:acodec=ac3:abitrate=192:autoaspect \
"$1" -o "$2"

The "$1" and "$2" designations are mediatomb specific...

Lastly, I have the following "transcoding" section in my "~/.mediatomb/config.xml" file:

<transcoding enabled="yes">
   <mimetype-profile-mappings> 
     <transcode mimetype="audio/mpeg" using="vlcwav"/>   
     <transcode mimetype="video/x-flv" using="transvideo"/>
     <transcode mimetype="video/mp4" using="transvideo"/>
     <transcode mimetype="video/x-quicktime" using="transvideo"/>
     <transcode mimetype="application/ogg" using="vlcwav"/>
     <transcode mimetype="audio/x-ms-wma" using="vlcwav"/>
     <transcode mimetype="audio/x-ms-asf" using="vlcwav"/>
     <transcode mimetype="audio/x-flac" using="ffmpegwav"/>
     <transcode mimetype="audio/x-aac" using="vlcwav"/>
     <transcode mimetype="audio/mp4" using="vlcwav"/>
     <transcode mimetype="video/x-msvideo" using="transvideo"/>
     <transcode mimetype="video/x-ms-wmv" using="transvideo"/>
     <transcode mimetype="video/mpeg" using="mpeg2trans"/>
     <transcode mimetype="video/x-matroska" using="transvideo"/>
     <transcode mimetype="image/jpeg" using="rescalejpeg"/>
   </mimetype-profile-mappings>
   <profiles>
     <profile name="transvideo" enabled="yes" type="external">
       <mimetype>video/mpeg</mimetype>
       <accept-url>no</accept-url>
       <first-resource>yes</first-resource>
       <agent command="mencoder-tr" arguments="%in %out"/>
       <buffer size="10485760" chunk-size="262144" fill-size="524288"/>
     </profile>
     <profile name="mpeg2trans" enabled="yes" type="external">
       <mimetype>video/mpeg</mimetype>
       <accept-url>no</accept-url>
       <first-resource>yes</first-resource>
       <hide-original-resource>yes</hide-original-resource>
       <agent command="mencoder-tr" arguments="%in %out"/>
       <buffer size="28800000" chunk-size="512000" fill-size="120000"/>
     </profile>
     <profile name="ffmpegwav" enabled="yes" type="external">
       <use-chunked-encoding>no</use-chunked-encoding>
       <mimetype>audio/wav</mimetype>
       <accept-url>no</accept-url>
       <first-resource>yes</first-resource>
       <agent command="ffmpegaudio" arguments="%in %out"/>
       <buffer size="1048576" chunk-size="131072" fill-size="262144"/>
     </profile>
     <profile name="vlcwav" enabled="yes" type="external">
   <use-chunked-encoding>no</use-chunked-encoding>
       <mimetype>audio/wav</mimetype>
       <accept-url>yes</accept-url>
       <first-resource>yes</first-resource>
       <agent command="vlc" arguments="-I dummy %in --sout #transcode{acodec=s16l,ab=192,channels=2}:standard{access=file,mux=wav,dst=%out} vlc:quit"/>
       <buffer size="512000" chunk-size="32000" fill-size="64000"/>
     </profile>
     <profile name="rescalejpeg" enabled="yes" type="external">
       <mimetype>image/jpeg</mimetype>
       <accept-url>no</accept-url>
       <first-resource>yes</first-resource>
       <accept-ogg-theora>no</accept-ogg-theora>
       <agent command="convert" arguments="-size 1080x720 %in -auto-orient -resize 1080x720 +profile '*' %out"/>
       <buffer size="50000" chunk-size="100" fill-size="100"/>
     </profile>
    </profiles>
</transcoding>

Note the "mencoder-tr" entries that allows mediatomb to execute the required script to perform the transcoding.

The advantage of this method means that using mencoder's engine it can read pretty much any format and convert to any format, in this case a standard DVD mpeg stream.

As requested, here is my entire ~/.mediatomb/config.xml

<?xml version="1.0" encoding="UTF-8"?>
<config version="1" xmlns="http://mediatomb.cc/config/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://mediatomb.cc/config/1 http://mediatomb.cc/config/1.xsd">
  <server>
    <ui enabled="yes">
      <accounts enabled="no" session-timeout="30">
        <account user="mediatomb" password="mediatomb"/>
      </accounts>
    </ui>
    <name>MediaTomb</name>
    <udn>uuid:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</udn>
    <home>/home/xxxxxxxxxxxxx</home>
    <webroot>/usr/share/mediatomb/web</webroot>
    <storage>
      <sqlite3 enabled="yes">
        <database-file>mediatomb.db</database-file>
      </sqlite3>
      <mysql enabled="no">
        <host>localhost</host>
        <username>mediatomb</username>
        <database>mediatomb</database>
      </mysql>
    </storage>
    <protocolInfo extend="yes"/>
  </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>
    <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="ts" to="video/mpeg"/>
    <map from="vob" to="video/mpeg"/>
    <map from="wav" to="audio/wav"/>
    <map from="mpg" to="video/mpeg"/>
    <map from="aac" to="audio/x-aac"/>
    <map from="m4a" to="audio/mp4"/>
    <map from="mkv" to="video/x-matroska"/>
    <map from="mov" to="video/x-quicktime"/> 
    <map from="flv" to="video/x-flv"/>
    <map from="divx" to="video/x-divx"/>
      </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"/>
      </mimetype-contenttype>
    </mappings>
  </import>
<transcoding enabled="yes">
    <mimetype-profile-mappings>  
      <transcode mimetype="audio/mpeg" using="vlcwav"/>    
      <transcode mimetype="video/x-flv" using="transvideo"/>
      <transcode mimetype="video/mp4" using="transvideo"/>
      <transcode mimetype="video/x-quicktime" using="transvideo"/>
      <transcode mimetype="application/ogg" using="vlcwav"/>
      <transcode mimetype="audio/x-ms-wma" using="vlcwav"/>
      <transcode mimetype="audio/x-ms-asf" using="vlcwav"/>
      <transcode mimetype="audio/x-flac" using="ffmpegwav"/>
      <transcode mimetype="audio/x-aac" using="vlcwav"/>
      <transcode mimetype="audio/mp4" using="vlcwav"/>
      <transcode mimetype="video/x-msvideo" using="transvideo"/>
      <transcode mimetype="video/x-ms-wmv" using="transvideo"/>
      <transcode mimetype="video/mpeg" using="mpeg2trans"/>
      <transcode mimetype="video/x-matroska" using="transvideo"/>
      <transcode mimetype="image/jpeg" using="rescalejpeg"/>
    </mimetype-profile-mappings>
    <profiles>
      <profile name="transvideo" enabled="yes" type="external">
        <mimetype>video/mpeg</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <agent command="mencoder-tr" arguments="%in %out"/>
    <buffer size="10485760" chunk-size="262144" fill-size="524288"/>
      </profile>
      <profile name="mpeg2trans" enabled="yes" type="external">
        <mimetype>video/mpeg</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <hide-original-resource>yes</hide-original-resource>
        <agent command="mencoder-tr" arguments="%in %out"/>
        <buffer size="28800000" chunk-size="512000" fill-size="120000"/>
      </profile>
      <profile name="ffmpegwav" enabled="yes" type="external">
        <use-chunked-encoding>no</use-chunked-encoding>
        <mimetype>audio/wav</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <agent command="ffmpegaudio" arguments="%in %out"/>
        <buffer size="1048576" chunk-size="131072" fill-size="262144"/>
      </profile>
      <profile name="vlcwav" enabled="yes" type="external">
    <use-chunked-encoding>no</use-chunked-encoding> 
        <mimetype>audio/wav</mimetype>
        <accept-url>yes</accept-url>
        <first-resource>yes</first-resource>
        <agent command="vlc" arguments="-I dummy %in --sout #transcode{acodec=s16l,ab=192,channels=2}:standard{access=file,mux=wav,dst=%out} vlc:quit"/>
        <buffer size="512000" chunk-size="32000" fill-size="64000"/>
      </profile>
      <profile name="rescalejpeg" enabled="yes" type="external">
        <mimetype>image/jpeg</mimetype>
        <accept-url>no</accept-url>
        <first-resource>yes</first-resource>
        <accept-ogg-theora>no</accept-ogg-theora>
        <agent command="convert" arguments="-size 1080x720 %in -auto-orient -resize 1080x720 +profile '*' %out"/>
        <buffer size="50000" chunk-size="100" fill-size="100"/>
      </profile>
      <profile name="vlcyoutube" 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{vcodec=mp2v,vb=4096,canvas-width=448,canvas-height=252,acodec=mpga,ab=64,samplerate=44100,channels=1}:standard{access=file,mux=ts,dst=%out} vlc:quit"/> 
        <buffer size="14400000" chunk-size="256000" fill-size="80000"/>
      </profile> 
    </profiles>
  </transcoding>
</config>

Note the bold and italicized regions. The home designation should be your "/home/(username)/.mediatomb" directory, and the uuid is a unique 32 alpha-numeric string.

Lastly, my config.xml probably needs a lot of cleaning up also. I basically heavily modified the one avialable from the mediatomb website and didn't go and clean it up. Fo example, I could probably delete the "vlcyoutube" transcoding trigger as I'm using the transvideo one instead.