Date: Tue, 06 Jun 2006 22:36:26 +0200
Nick Burns wrote:
OpenAL 1.1 supports recording... (1.0 does not have recording so that is a
problem yes)
-- My driver handles this atm -- it checks for recording capabilities and
supports accordingly
half or full duplex ?
Unknown... (sorry not an openal master ...yet...). I can ask the dev working
on OpenAL about these types of things.
The OpenAL api is rather simple
- For playback : you make buffers and queue them then poll them (to find
out when they are done)
There are some extensions that cut out
copies/support eax/... (I have not looked at em yet)
(support 2d and 3d audio)
hmm that's what we said for Alsa... 3 years later quality is still not
there :-/
Hehe -- I had no knowledge of this (just learned oss, alsa and openal
existed like 3 weeks ago)
- For recording (1.1 only) : start capturing -- poll (get data -- if
there) -- stop recording
The dsound mapping stuff I want to understand better (are there any docs
for this?)
I am sure we can layer it on OpenAL (hopefully good)
I doubt it for direct HW mapping (HEL should be fine). Unfortunately, no
doc.
Hmm... Is there a way I can request some docs (or is the source code + msdn
the doc)?
PortAudio looks like a good choice as well -- afaict -- but I dont have
any exp with it (not that I had any openal exp when i started that driver
hehe)
The whole point here is that OpenAL doesn't bring much to the picture
(apart perhaps from a portability perspective, but it's still overkill).
A+
I would not say overkill (well maybe for linux its overkill but....)
Mac OSX only has JACK(does not work atm), ESD(...slow), and now
CoreAudio(crashs in winecfg -- does play games -- but has ... static)
drivers
CoreAudio is the only one that can show any decent performance -- and its
not really very... Portable
OpenAL can show good performance on Mac OSX and other platforms (so others
can test things and stuff -- even under windows)
I am not saying that OpenAL should be the catch-all sound driver -- but its
nice to have an alternative (that I can play GTA3 with -- although i suggest
not playing with a trackpad)
You can take a look at my driver (posted to this list -- and its in the
archive at http://www.winehq.org/pipermail/wine-devel/2006-June/048273.html)
It is heavily based on the esd driver (my starting point). Which was heavily
based off of arts/alsa...
- Nick
