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Subject: Request for help - documenting Rockbox's audio codec support

Request for help - documenting Rockbox's audio codec support

From: Dave Chapman <>
Date: Thu, 07 Jun 2007 17:14:48 +0100

Rockbox now supports almost 20 different audio formats (on the swcodec
targets) and I thought it would be useful to start documenting them in
more detail than the information available on the current SoundCodecs
wiki page.

My intention is to create a separate wiki page for each format supported
in Rockbox, and populate them with the following information:

1) A brief description of the format, with links for further
information, encoders, etc.

2) Details of the current status of playing that format in Rockbox -
any limitations, which tagging formats are supported, etc.

3) A table showing the decoding speed (the % realtime figure given by
test_codec) for a range of different encoding settings on the three
different architectures Rockbox runs on - Coldfire, PortalPlayer and the
Gigabeat's 300MHz ARM.

Related to 3) is the need to find a freely-distributed test track which
can be used to compare the decoding speed of the different codecs. If
anyone has suggestions for such a track, or views on any methodology we
should use to choose it, please say so.

I've added a first attempt at a page for the newly supported Monkey's
Audio here:

If anyone feels like working on pages for other formats, please feel
free to do so.

These pages are (automagically) linked to from the SoundCodecs page -
please make sure you add the "CategorySoundCodecs: Codec Name" line to
the bottom of any new page you add.

I think this page could also benefit from being restructured - e.g.
moving the main table into a "SoundCodecDevelopment" or similar page,
and leaving SoundCodecs to just document the currently supported formats.


Received on 2007-06-07

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