https://bugs.freedesktop.org/show_bug.cgi?id=65122
Priority: medium
Bug ID: 65122
CC: [email protected]
Assignee: [email protected]
Summary: Audio doesn't work on OSX due to bugs in the coreaudio
implementation
QA Contact: [email protected]
Severity: blocker
Classification: Unclassified
OS: Mac OS X (All)
Reporter: [email protected]
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: modules
Product: PulseAudio
Created attachment 79947
--> https://bugs.freedesktop.org/attachment.cgi?id=79947&action=edit
Fix bugs in coreaudio latency calculation code
Pulseaudio on OSX sometimes works and sometimes doesn't. When it works it
usually takes a while before sound starts playing. A sound file might start
playing after being stuck for a few minutes.
I tracked this down to a bug in the coreaudio implementation: the
get_latency_us function is buggy and uses an uninitialized variable as part of
the calculation. Sometimes the resulting latency turns out low enough for it to
play, sometimes not.
The attached patch fixes the issue. It also fixes AudioObjectGetPropertyData
calls that weren't working due to the wrong mScope and adds error logging.
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