[maemo-developers] [maemo-developers] OGG support

[From: Martin Grimme]

Hello,

Am Sonntag, den 30.10.2005, 01:28 -0200 schrieb Gustavo Sverzut
Barbieri:

> Are you using GStreamer OGG or what? If not, why not?
> 
> A oggsink, in the same way mp3sink acts, would rock!

Currently, I'm not using gstreamer. My Ogg player was just a
proof of concept to see whether the Nokia 770 is fast enough
to decode Ogg Vorbis or not.
Of course it is not fast enough for the standard Ogg Vorbis
decoder. But there exists an integer-only version called
Tremor (http://www.xiph.org/vorbis/) which is usable on the
device.
The best way, however, would be utilizing the DSP for
decoding in order to decrease CPU load (constantly 20% is
a lot and drains battery). The DSP is already used for
decoding MP3 and MPEG4, so Nokia should be able to provide
Ogg support as well.
The gstreamer guys also tested Ogg on the device, but by using
the standard plugin, which is too slow. Currently there is
no plugin which uses Tremor, but Christian Schaller wrote in
his blog that they will be working on it.


Regards, Martin