Commit Graph

6 Commits

Author SHA1 Message Date
wm4 c87224bf1b ao_coreaudio: change license to LGPL
All authors have agreed to the relicensing.

The code was pretty much rewritten by Stefano Pigozzi. Since the rewrite
happened incrementally, and seems to include refactored portions of
older code, this relicensing was done on the pre-refactor code do.

The original commit adding this AO (as ao_macosx.c) credits Timothy J.
Wood as original author. He was asked and agreed to LGPL. It's not
entirely sure from which project this code came from, but it's probably
libao. In that project, Stanley Seibert made some changes to it (who as
a major developer of libao was asked just to be sure), and also Ralph
Giles and Ben Hines made two small changes. The latter were not asked,
but none of their code survived anyway.
2017-05-08 13:57:40 +02:00
Stefano Pigozzi 97f6d7f4ec ao_coreaudio: report hardware latency to ao_read_data
Commit a6a4cd2c88 added reporting of playout latency, this commit also adds
support for reporting hardware and constant audio unit latency.
2014-07-03 20:05:15 +02:00
wm4 41f2b26d11 audio/out: make ao struct opaque
We want to move the AO to its own thread. There's no technical reason
for making the ao struct opaque to do this. But it helps us sleep at
night, because we can control access to shared state better.
2014-03-09 00:19:31 +01:00
Dmitry Kalinkin 721071a5ec ao_coreaudio: fix compilation on OS X 10.7
Reverts one of the changes from 18777ecf. `kAudioObjectPropertyScopeOutput`
was introduced in the 10.8 SDK while `kAudioDevicePropertyScopeOutput` was
moved to `AudioHardwareDeprecated.h`. Since the deprecation is silent for now
(no warnings), just use the old constant.

Either way, they both evaluate to 'outp', and in the 10.8 SDK the deprecated
constant is defined in terms of the non-deprecated one.

Fixes #155
2013-07-28 09:48:49 +02:00
Stefano Pigozzi 18777ecfe8 ao_coreaudio: refactor properties code
Introduce some macros to deal with properties. These allow to work around the
limitation of CoreAudio's API being `void **` based. The macros allow to keep
their client's code DRY, by not asking size and other details which can be
derived by the macro itself. I have no idea why Apple didn't design their API
like this in the first place.
2013-07-22 21:53:18 +02:00
Stefano Pigozzi 1e37965597 ao_coreaudio: split ao_coreaudio_common in two files
* ao_coreaudio_utils: contains several utility function
 * ao_coreaudio_properties: contains functions to set and get  audio object
   properties.

Conflicts:
	audio/out/ao_coreaudio.c
2013-07-22 21:53:18 +02:00