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CoreAudio: subscribe to device-alive property

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This notifies the user about device disconnect and properly
shuts down the backend.
This commit is contained in:
Robin Gareus 2023-04-22 19:33:03 +02:00
parent 65c81feb5e
commit a7ca4cf8a1
4 changed files with 60 additions and 6 deletions
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29
libs/backends/coreaudio/coreaudio_backend.cc
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@ -60,6 +60,12 @@ static void error_callback_ptr (void *arg)
d->error_callback();
}
static void halted_callback_ptr (void *arg)
{
CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
d->halted_callback();
}
static void xrun_callback_ptr (void *arg)
{
CoreAudioBackend *d = static_cast<CoreAudioBackend*> (arg);
@ -544,6 +550,7 @@ CoreAudioBackend::_start (bool for_latency_measurement)
_last_process_start = 0;
_pcmio->set_error_callback (error_callback_ptr, this);
_pcmio->set_halted_callback (halted_callback_ptr, this);
_pcmio->set_buffer_size_callback (buffer_size_callback_ptr, this);
_pcmio->set_sample_rate_callback (sample_rate_callback_ptr, this);
@ -1521,16 +1528,31 @@ CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t hos
}
void
CoreAudioBackend::error_callback ()
CoreAudioBackend::unset_callbacks ()
{
_pcmio->set_error_callback (NULL, NULL);
_pcmio->set_halted_callback (NULL, NULL);
_pcmio->set_sample_rate_callback (NULL, NULL);
_pcmio->set_xrun_callback (NULL, NULL);
_midiio->set_port_changed_callback(NULL, NULL);
}
void
CoreAudioBackend::error_callback ()
{
unset_callbacks ();
engine.halted_callback("CoreAudio Process aborted.");
_active_ca = false;
}
void
CoreAudioBackend::halted_callback ()
{
unset_callbacks ();
engine.halted_callback("Audio device was disconnected or shut down.");
stop ();
}
void
CoreAudioBackend::xrun_callback ()
{
@ -1558,10 +1580,7 @@ CoreAudioBackend::sample_rate_callback ()
#endif
return;
}
_pcmio->set_error_callback (NULL, NULL);
_pcmio->set_sample_rate_callback (NULL, NULL);
_pcmio->set_xrun_callback (NULL, NULL);
_midiio->set_port_changed_callback(NULL, NULL);
unset_callbacks ();
engine.halted_callback("Sample Rate Changed.");
stop();
}