On 22/06/2006, at 7:10 PM, Frantisek Dufka wrote:
Steve Landers wrote:
Yes - I looked there. Nothing that stands out as being an alsa
driver - snd_hwdep and snd_rawmidi being the closest but neither
appears to provide the functionality of the inbuilt Alsa drivers
in IT2005 nor the Alsa support referred to in the Maemo
documentation. And, unfortunately, I cannot find any
documentation on how to use these modules.
Tha basic support is in kernel
Nokia770-22:~# cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.11rc2 (Wed Jan
04 08:57:20 2006 UTC).
and with the rest in modules I think it is the same functionality
as it was in IT2005 (i.e almost none). What exactly did work in
IT2005 out of box? I thought alsa is not working yet for the
internal audio and people should use gstreamer or esd deamon for
that as the audio chip is used only by DSP (via gstreamer)
directly. Am I wrong? Was there really alsa to DSP audio driver in
kernel in IT2005?
I'll answer that question in a few hours when I rebuild the Maemo 1.1
scratchbox and try building and running aplayer. I've just reflashed
to 1.1 (oh how I miss IT2006 already :)) and note that the /proc/
asounds directory has a subdir card0 with a symlink Dummy -> card0.
Inside card0 is a device file id which just returns "dummy". So at
this stage I'm not sure if that indicates there is or isn't an Alsa
driver present.
What I do know is that the documentation (http://www.maemo.org/
platform/docs/multimedia/multimedia_architecture.html) explicitly
states that Alsa is supported and seems to discourage one from using
ESD.
I've looked into Gstreamer but quickly got bogged down in the
complexity and it isn't obvious if it is even possible to get it
working in the way I need (basically, playing midi notes - ideally
with soundfont support) without developing a plugin. I could go down
the SDL path as an alternative but given I use a library that
supports Alsa (Fluidsynth) and the Maemo multimedia documentation
says that it supports Alsa then I'm naive enough to believe it should
be possible :)
Don't get me wrong - I love the 770 and think that it is a great
device. I'm just a bit frustrated at the moment with the quality of
the available documentation (I can live with missing documentation, I
find incorrect documentation a little harder to deal with).
In any case, I appreciate your input.
Steve
_______________________________________________
maemo-developers mailing list
maemo-developers@maemo.org
https://maemo.org/mailman/listinfo/maemo-developers
