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Commit Graph

24 Commits

Author SHA1 Message Date
38a4bb6736
Fix prev commit (properly stop pulse) 2021-07-21 05:56:42 +02:00
03a17df68c
Pulseaudio: tweak freewheel recovery
Always cork stream before calling pa_stream_flush.
2021-07-21 05:03:54 +02:00
634d325e5d
Prevent deadlock when disconnecting
The backend holds `_port_callback_mutex` while disconnecting ports.
In some cases disconnecting a port can drop the last reference
resulting in a port-deletion from the connection handler.
This in turn will eventually aquire the `_port_callback_mutex`
and deadlock.

This is now circumvented by using atomic operations instead of
taking a lock to set the `_port_change_flag`.

The flag is also used to trigger a latency update in some cases,
atomic is preferable to taking a lock to set this flag.

--

Full bt: https://paste.debian.net/1184056/
Short:

#1  in pthread_mutex_lock ()
#2  in ARDOUR::PortEngineSharedImpl::port_connect_add_remove_callback()
#3  in ARDOUR::BackendPort::~BackendPort()
#4  in ARDOUR::DummyPort::~DummyPort()
#6  in ARDOUR::DummyAudioPort::~DummyAudioPort()
#7  in boost::checked_delete<ARDOUR::BackendPort>(ARDOUR::BackendPort*)
#12 in boost::shared_ptr<ARDOUR::ProtoPort>::reset()
#13 in ARDOUR::Port::drop()
#14 in ARDOUR::Port::~Port()
#15 in ARDOUR::AudioPort::~AudioPort()
#17 in ARDOUR::AudioEngine::add_pending_port_deletion(ARDOUR::Port*)
#20 in boost::detail::sp_counted_base::release()
#37 in ARDOUR::PortManager::connect_callback() at libs/ardour/port_manager.cc:788
#38 in ARDOUR::DummyAudioBackend::main_process_thread() at libs/backends/dummy/dummy_audiobackend.cc:1018
2021-02-04 21:06:20 +01:00
21e66216be
Separate user-set pretty-names from hardware I/O names
This allow to restore original engine port-names as set
by the backend. ALSA MIDI, CoreAudio, CoreMIDI and PortAudio
drivers can provide human readable physical port names for
some devices.
2021-01-18 03:18:20 +01:00
80e3c191e4
Pulseaudio: allow steam being suspended during export
When exporting long sessions with freewheeling, pulseaudio
may meanwhile suspend the corked audio device. The "FAIL_ON_SUSPEND"
option then prevents ardour to uncork it after export, and the
audio-backend is halted.
2020-11-22 21:41:47 +01:00
81862f8c30
Allow to move pulse stream #8467
This potentially breaks various assumptions (e.g. no resampling,
fixed buffersize) when the stream is moved to a different device.
Then again it's pulseaudio, which is unsuitable for pro-audio to
begin with.
2020-11-11 15:59:26 +01:00
cf0904f752
Handle vfork/exec failure
Don't call atexit, exit without cleanup.
2020-10-31 22:33:10 +01:00
a9bd7b2848
Remove unused compile-time option to not use vfork 2020-10-31 22:30:45 +01:00
a80064981e
NO-OP: Consolidate PortConnect code into shared parent class 2020-09-05 23:05:57 +02:00
92f54b3e98
Add API to query if systemic latency can be measured 2020-06-30 03:34:26 +02:00
09aa0a3d1a
Consolidate code using pthread_attr_setstacksize
This also adds some stack constraint to rt and fallback threads
that didn't have those before (ALSA MIDI for example)
2020-06-06 18:35:44 +02:00
ae3c8b19c6
Tweak PulseAudio re-initialization
This fixes an issue with pulse disconnecting after freewheeling,
and possibly also address #8193
2020-06-05 04:24:09 +02:00
3d166c7789
Consolidate stack-size and priority of rt-threads 2020-04-23 01:28:58 +02:00
78a66b7180 improved port cleanup as backend is destroyed 2020-04-07 23:26:51 -06:00
b9cb306e8b use shared_ptr to manage backend port lifetimes (Pulse,ALSA,Dummy,JACK)
JACK is not yet finished.

Changes also include minor reformatting and a spelling correction (latecies to latencies)
2020-04-07 13:23:49 -06:00
e5507f7072 use PortEngineSharedImpl with PulseAudio backend 2020-04-02 19:45:31 -06:00
a8ff35accb
Reset DSP load on backend re-start and after freewheeling 2020-03-30 16:58:55 +02:00
f866ed6305
Remove duplicate calls 2020-03-30 15:20:54 +02:00
45cf29b7c5
Use preferred pa_context_new_with_proplist API 2019-09-01 19:01:18 +02:00
47a62b2850
Update backend GPL boilerplate and (C) from git log 2019-08-03 15:53:16 +02:00
8a969b56c9
PA-backend: Flush buffer and wake up main thread at stop 2019-07-26 21:38:40 +02:00
b759fb883e
Launch pavucontrol as PA's control app 2019-07-26 04:43:56 +02:00
d7454714ab
Fix PA: unlock mainloop on abort 2019-07-25 21:24:36 +02:00
384c97e12d
Puls der Zeit
Prototype a basic stereo-playback only pulseaudio backend.
2019-07-25 17:49:42 +02:00