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158 commits

Author SHA1 Message Date
Robin Gareus
23baeee829
Tweak engine startup, initial silence 
This can help when running with very low latency and the
initial process callback is [indirectly] expensive.

E.g. load a heavy session the a RPi4, initial setup can pull
in a lot of data, which blocks the bus.

In particular with the ALSA backend this can lead to poll timeout
which effectively stops the backend.
 2020-03-30 15:20:54 +02:00
Robin Gareus
7c381dab6e
Downgrade "using all channels" warning to info - part 2 2020-01-25 04:17:53 +01:00
Robin Gareus
f9e7f10695
Downgrade "using all channels" warning to info message 2020-01-24 21:16:40 +01:00
Robin Gareus
8fadf44978
Fix possible segfault when ALSA MIDI port registration fails 2019-08-23 04:39:12 +02:00
Robin Gareus
47a62b2850
Update backend GPL boilerplate and (C) from git log 2019-08-03 15:53:16 +02:00
Robin Gareus
78fc6d6651
Prefix all env variable with "ARDOUR_" 
In particular "CONCURRENCY" can be problematic. But in general
it's good practice to use a namespace prefix for app-specifics.
 2019-07-26 16:44:29 +02:00
Robin Gareus
771f2d2499
ALSA backend: fix play/capture device param detection 2019-07-24 16:40:40 +02:00
Robin Gareus
00e226e3c6
Fix ALSA MIDI latency update call (playback/capture direction mismatch) 2019-05-06 00:14:27 +02:00
Robin Gareus
ddd1cda260
Remove outdated comment 2019-05-05 18:07:21 +02:00
Robin Gareus
c5346f5c15
Fix add/remove ALSA-MIDI ports bug 2019-05-05 18:06:37 +02:00
Robin Gareus
8ccc45d44d
Ardour/ALSA allow multiple MIDI devices with the same name 2019-03-06 23:41:15 +01:00
Robin Gareus
e1ffe7857f
Use enum for exec stderr parameter (1/2) 2019-03-05 22:49:15 +01:00
Robin Gareus
8b71967be9
ALSA: add locks to safely add/remove MIDI devices 
Theoretically this could be lock-free by using a queue of device
ports to be added/remove in sync in the process-callback, but
realistically adding/removing devices doesn't have to be rt-safe.
 2019-01-14 22:33:31 +01:00
Robin Gareus
86a78dc100
Fix a -Wunused-but-set-variable 2019-01-02 18:59:03 +01:00
Robin Gareus
d50d8b9d33
C++98 compatible map erase 2018-12-27 12:45:36 +01:00
Robin Gareus
517b5f091f
Use same has for ALSA-seq and ALSA-raw devices 2018-12-23 21:58:56 +01:00
Robin Gareus
79e247e00a
Dynamic ALSA MIDI I/O device discovery and re/connect 2018-12-23 21:58:56 +01:00
Robin Gareus
217ef4d365
Use hash for ALSA-MIDI device name/ID 2018-12-23 21:58:55 +01:00
Robin Gareus
076e9fddd4
Remove ambiguous API implementation 
* PortEngine::available() implementation
* AudioEngine::connected() wrapper

Eventually we may re-introduce PortEngine::available along
with a libardour internal port-engine.
 2018-11-28 15:32:40 +01:00
Paul Davis
e047b01aa2 add new API for retrieving port flags from backend 2018-10-17 14:11:37 -04:00
Robin Gareus
46175b6b60 Increase alsa-backend timeout 
Following discussion (https://community.ardour.org/node/15805 and
#ardour IRC) test initial disconnect due to timeout after a cold-boot.
 2018-08-29 19:23:53 +02:00
Robin Gareus
ab3889fff8 Propagate Latency to backend/system ports 
Set accumulated capture-latency for physical-outputs
and accumulated playback-latency for physical-inputs
after Ardour is done setting all non-physical port latencies.

This will be needed for latency-compensation of the complete graph.
 2017-09-23 00:34:01 +02:00
Paul Davis
30b087ab3d globally change all use of "frame" to refer to audio into "sample". 
Generated by tools/f2s. Some hand-editing will be required in a few places to fix up comments related to timecode
and video in order to keep the legible
 2017-09-18 12:39:17 -04:00
Robin Gareus
8337982766 Prototype using additional ALSA devices (w/resampling). 2017-09-18 16:13:55 +02:00
Robin Gareus
128a985361 ALSA Backend: Separate Device Reservation into its own class 2017-09-18 14:50:31 +02:00
Robin Gareus
467c801ce8 Abstract definition of rt-scheduler policy 
pthread-w32 does not support pthread_setschedparam() with
SCHED_FIFO and bails out. While pthread_create() simply ignores the policy
and sets the priority regadless.

This only affects ctrl-surface event-loops & AutomationWatch on Windows.
 2017-08-29 20:35:36 +02:00
Robin Gareus
df659e91f1 Consolidate _realtime_pthread_create() into libpbd. 2017-08-29 17:25:23 +02:00
Robin Gareus
59a63a08f9 ALSA backend RT-safe MIDI buffer allocation 2017-08-05 15:36:36 +02:00
Robin Gareus
2b7c585dba Update backend API: read-only MIDI input buffers 2017-08-05 15:36:36 +02:00
Robin Gareus
c125cd2647 Reduce DSP thread priority (main-i/o > midi i/o > computation) 2017-08-05 01:28:11 +02:00
Robin Gareus
0d668b9beb ALSA backend: always register ports with systemic latency 
and allow re-start to un/set reporting latency.
 2017-04-27 20:59:15 +02:00
Robin Gareus
d7d86a99d2 Re-nice ALSA MIDI port names 2017-04-21 10:43:22 +02:00
Robin Gareus
f9db9bf5fd Retain order of concurrent MIDI events 
This fixes an issue with FaderPort8 (and maybe other surfaces or synths).
 2017-04-08 23:43:50 +02:00
Paul Davis
cf52d6e4b4 enough with umpteen "i18n.h" files. Consolidate on pbd/i18n.h 2016-07-14 14:45:23 -04:00
Robin Gareus
ac923be7af fix port-sort order for good. 
TODO find out how to make std::set::find() work with custom sort order,
as std::find may only be O(N) and not O(log (N)).
 2016-07-08 21:37:42 +02:00
Robin Gareus
43e620504a port 93eac8b0 to ALSA and CoreAudio 2016-04-26 18:19:48 +02:00
Robin Gareus
2169de3975 keep portmap & portindex in sync when renaming ports 
Fixes crash on session re-load (introduced in 800c8182 and fde99e68)
 2016-04-26 02:26:20 +02:00
Robin Gareus
800c8182c6 O(log(n)) port and connection lookup for ALSA 2016-04-24 20:45:37 +02:00
Robin Gareus
9840a11537 implement metadata-set for remaining backends 2016-04-18 00:35:51 +02:00
Robin Gareus
10140a8e68 implement pretty-name set-property for ALSA and Dummy 2016-04-17 18:22:21 +02:00
Robin Gareus
cf6a3afcaa name ALSA midi ports after device 2016-01-11 11:46:10 +01:00
Robin Gareus
4dc49ee4fa fix -Wreorder 2015-12-05 02:42:58 +01:00
Robin Gareus
a6f27f09a7 update ALSA backend: separate playback/capture periods 
fixed: 2 for capture,  configurable 2,3 for playback.
 2015-12-05 01:53:13 +01:00
Robin Gareus
bfd2cbaa3f ALSA: allow to dynamically add/remove midi devices & update their latency. 2015-12-04 22:19:47 +01:00
Robin Gareus
ac075560bd ALSA: allow to measure & set systemic audio latency w/o restart. 
(MIDI needs a bit more work)
 2015-12-04 17:45:49 +01:00
Robin Gareus
990fd75c5f implement ALSA period/cycle setting 2015-12-04 10:16:19 +01:00
Robin Gareus
87c36aba60 use new error-messages 2015-10-02 17:51:17 +02:00
Tim Mayberry
dcf327f86a Return meaningful error codes when ALSA backend fails to start 
Unfortunately it seems that in zita-alsa-pcmi doesn't set state() correctly in
some cases. Setting an invalid SR doesn't display the correct error message,
first guess would be that set_hwpar is failing and state() is not
representative of the actual error.
 2015-10-01 09:10:19 +10:00
Robin Gareus
1691e965a5 update reported DSP load for ALSA & Dummy 2015-09-16 18:24:57 +02:00
Tim Mayberry
782dbf0e3f Set max time of DSPLoadCalculator in every cycle in ALSA backend 2015-09-16 11:22:17 +10:00