<page xmlns="http://projectmallard.org/1.0/"
type="guide"
id="xiph">
<info>
<link type="guide" xref="index#channels"/>
<link type="guide" xref="channels#list"/>
<link type="guide" xref="configuration#plugins"/>
<desc>ICEcast radio directory.</desc>
</info>
<title>Xiph.org</title>
<p>Xiph.org is a non-profit organization, which develops and
promotes the OGG streaming format, and develops audio compression
schemes such as Vorbis, FLAC, Opus, or the Theora video encoding
enve. It also hosts a list of ICEcast streaming stations. ICEcast
is their non-commercial pendant to the SHOUTcast server.</p>
<p>This channel is somehwat easy to read for Streamtuner2, because the source data is already
provided as <XML> file. (Internally we're using a caching service, which pre-converts
that into JSON lists. The Xiph-org JSON API isn't really working yet).</p>
<p>However, it lacks some essential informations like station homepages and listener numbers.</p>
<p>Xiph also uses the .xspf format, instead of .pls stream links</p>
<terms>
<title>Channel options.</title>
<item>
<title><code>Filter by minimum bitrate</code></title>
<p>The bitrate of an audio stream determines the music quality. Many Xiph streams have simple
and low quality microphone sources. To filter these out, and only leave high quality music
stations, you can therefore change this option. OGG starts to sound well with 96 kbit/s (whereas
MP3 often requires 128 or 160 kbit/s at least).</p>
</item>
<item>
<title><code>Fetch mode</code></title>
<p>There are now three options to retrieve Xiph directory stations.</p>
<p></p>
<terms>
<item>
<title><code>Cache JSON</code></title>
<p>There's a caching server specifically for streamtuner2. It fixes
Xiphs quirky JSON API, and provides a simpler interface. It can't
correct the invalid encodings however, which is why you see ????
question marks a lot. This method does not reveal station homepages,
but enables the channel/server search.</p>
</item>
<p></p>
<item>
<title><code>Clunky YP.XML</code></title>
<p>The "yellow pages" YP.XML contains the full list of all known
ICEcast streaming servers. It's however quite bulky and super slow
to download. It furthermore clogs up a lot of memory, and requires
manual searching (only cache search works). Which is why streamtuner2
is trying hard to avoid it. It doesn't contain station homepages either.
</p>
<p>It's only still an option, because it's likely to remain accessible
after Xiph.org rewrites their directory service. (Which though is
getting delayed since a few years already.)
You can set the special "buffy" mode in your <file>settings.json</file>
to keep the whole YP.XML in memory. Which avoids the
slow station list download/unpacking.
</p>
</item>
<p></p>
<item>
<title><code>Forbidden fruits</code></title>
<p>As new alternative, you can let ST2 directly scrape the station
lists from dir.xiph.org (like it does for other channels). This is
something which Xiph doesn't like/encourage. But the drawbacks of
their alternative offerings are too severe and user-unfriendly;
which is why there's this raw HTML extraction mode now.</p><p>The website
listings contain full station homepages and a few more extras. In
this mode we can even acceess the XSPF playlist formats directly.
And the server search function, or browsing by audio/video format is
supported.
</p>
</item>
</terms>
</item>
</terms>
</page>