Re: DVD Player failling to start on Tiger + user land coreaudio driver
Re: DVD Player failling to start on Tiger + user land coreaudio driver
- Subject: Re: DVD Player failling to start on Tiger + user land coreaudio driver
- From: Jeff Moore <email@hidden>
- Date: Mon, 7 Nov 2005 11:55:58 -0800
I presume that you are referring to linear PCM output. The DVD Player
is client of AUHAL for linear PCM output and as such, if it didn't
work, other clients, like iTunes and QuickTime, would probably also
have issues. Do they?
There are lots of new things in the HAL in Tiger, so without more
info, it's hard to say what you might be doing wrong. One thing you
can do is log the calls to your plug-in (including arguments and
return values) when things work and when they don't and look at the
differences. Chances are your plug-in is missing some crucial bit of
protocol.
On Nov 7, 2005, at 5:50 AM, Stéphane Letz wrote:
Starting on Tiger, the DVD Player does not work correctly anymore
with our user land coreaudio driver. DVD Player (4.0) was correctly
working on OSX 10.3.9.
Tracing calls from the application into the driver reveals that the
AudioDeviceStart function is not called at all, probably due to an
incorrect behaviour of the driver at a previous stage. Is there
anything new into the HAL on Tiger that could explain this problem?
Or something new in DVD Player itself ? (current version is 4.6)
--
Jeff Moore
Core Audio
Apple
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