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974 Commits

Author SHA1 Message Date
Chris Robinson
5867c7b8c2 Don't bother inlining some functions 2018-11-13 19:45:26 -08:00
Chris Robinson
09ea1d58f6 Convert the backend base to C++ 2018-11-13 01:39:42 -08:00
Chris Robinson
a6d780574d Make the enumerated HRTF entry name a char* 
Would ideally be a std::string with the HRTF name itself, but they're still
seen in C code.
 2018-11-12 22:26:12 -08:00
Chris Robinson
d4d0b1fdd4 Use a regular char* for the HRTF string name 2018-11-12 19:02:38 -08:00
Chris Robinson
58a71a1a00 Convert helpers.c to C++ 2018-11-11 14:56:25 -08:00
Chris Robinson
dc31969b04 Get rid of the last few al_fopen calls 2018-11-10 04:27:10 -08:00
Chris Robinson
0e7986eaa8 Move some extern inline declarations to C 2018-10-31 13:21:05 -07:00
Chris Robinson
7a79f09a31 Add a comment about waiting to kill the event thread 2018-10-07 17:18:50 -07:00
Chris Robinson
db65113c5f Use a 24-bit dither depth limit 2018-10-03 13:51:21 -07:00
Chris Robinson
f3f94e478b Don't limit output for ALC_DONT_CARE_SOFT and float samples 2018-10-03 13:48:04 -07:00
Chris Robinson
c39eeb9638 Don't try to get the JNIEnv on Android 
It's currently not used. More stuff is needed anyway which may need a different
approach.
 2018-10-02 12:40:26 -07:00
Chris Robinson
1860b2ec8a Make the Compressor struct opaque 2018-09-30 12:08:01 -07:00
Chris Robinson
79314c4461 Include the limiter's lookAhead delay in the device latency 2018-09-25 23:05:27 -07:00
Chris Robinson
2d6309d6fc Don't hardcode the limiter threshold 
It's now calculated from the output sample type and dither depth.
 2018-09-25 10:33:20 -07:00
Chris Robinson
c69338bc0d Update the output limiter/compressor 
This provides better characteristics for an amplitude limiter. In particular,
it utilizes the peak amplitude instead of the RMS, and the used parameters
basically guarantee no output samples exceed the given threshold... almost, due
to floating-point errors as the threshold is converted from dB to log-e for the
envelope, then is negated and converted to linear amplitude to apply to the
signal. It's quite possible for some rounding errors to creep in and not
perfectly saturate the result.
 2018-09-25 10:04:14 -07:00
Chris Robinson
f21e2df4cf Remove an unnecessary mutex 2018-09-20 22:53:16 -07:00
Chris Robinson
84a90b7cc3 Stop the event thread when releasing the context 
To ensure no user callback gets called after alcDestroyContext.
 2018-09-20 22:44:58 -07:00
Chris Robinson
ebbbeb0d66 Put user events in a union structure 2018-09-20 21:59:38 -07:00
Chris Robinson
cb8545346d Always start the event thread with the context 2018-09-20 19:58:01 -07:00
Chris Robinson
46cfedb117 Pass the device name list to the backend probe method 2018-09-07 22:02:37 -07:00
Chris Robinson
7394dd512d Rename ALCsndioBackend 2018-09-07 18:45:24 -07:00
Raulshc
83dba26ea6 EFX: Autowah implementation 
Add autowah effect using biquad peaking filter and envelope follower
 2018-07-25 12:51:09 -07:00
Chris Robinson
ed1f1d2bf3 Start an extension to allow source filter gains greater than 1 2018-07-15 21:01:26 -07:00
Tobias Kortkamp
e2d7c5dfb3
Prefer sndio over OSS when both are enabled 
Signed-off-by: Tobias Kortkamp <tobik@FreeBSD.org>
 2018-06-22 14:36:33 +02:00
kdhp
35b78d55a4 Stop capture devices while closing 
In 'alcCaptureCloseDevice', check if the capture device is
running and stop it if necessary.
This fixes the case where the device data is deallocated while
a background thread is still running (Issue #199)
 2018-06-08 01:42:13 +00:00
Chris Robinson
422cf429e6 Clamp the dither depth between 2 and 20 bits 2018-05-23 19:49:49 -07:00
Raulshc
d3a81f4f28
EFX: Frequency Shifter implementation 
Add frequency shifter effect using discrete Hilbert transform. Only mono signal processing by now (LEFT_DIRECTION).
 2018-05-20 17:23:03 +02:00
Chris Robinson
7a23330ffe Move the filter implementation to a separate directory 2018-03-22 07:05:40 -07:00
Raulshc
6fd23f0984
EFX:Pitch Shifter implementation 
Add pitch shifter effect using standard phase vocoder, based on work of Stephan Bernsee. Only mono signal processing by now.
 2018-03-18 17:47:17 +01:00
Chris Robinson
dac9379449 Add methods to clean up althrd and altss data 2018-03-10 12:10:58 -08:00
Chris Robinson
a6ddeaf5f1 Rename the mmdevapi backend to wasapi 2018-03-09 18:56:24 -08:00
Chris Robinson
0c7fa1b955 Avoid deinitializing backends that never initialized 2018-03-08 18:53:49 -08:00
Chris Robinson
19281868dc Properly limit the max number of effect slots to 2^31 - 1 2018-03-08 17:48:21 -08:00
Jan Niklas Hasse
86319127e3 Add SDL2 backend for playback, fix #173 2018-03-07 20:57:53 +01:00
Chris Robinson
179e1c4dbc Don't check for space in the ringbuffer before trying to write 
The write method already checks and returns how much it managed to fit in.
 2018-03-03 21:57:42 -08:00
Chris Robinson
4e6c758daf Use a plain mutex for the property lock 2018-03-03 13:42:37 -08:00
Chris Robinson
4bd02eada6 Init more stuff in InitDevice 2018-03-03 09:00:14 -08:00
Chris Robinson
bd32a682f7 Use atomic variables instead of volatile 2018-03-02 19:16:55 -08:00
Chris Robinson
4d417f3dd4 Make bformatdec_free and ambiup_free clear the freed pointer 2018-02-12 20:48:28 -08:00
Chris Robinson
e63e0ee596 Combine multiple functions called sequentially 2018-02-11 22:23:03 -08:00
Chris Robinson
5b11129eaa Use a function pointer for applying the dry mix post-process 2018-02-10 15:50:05 -08:00
Chris Robinson
9b878c64f9 Make the Connected state atomic 
Also don't send the Disconnected event more than once.
 2018-02-04 00:01:12 -08:00
Chris Robinson
b99e64a0e3 Provide more descriptive messages to disconnection events 2018-02-03 13:54:42 -08:00
Chris Robinson
80cc32d77b Remove the unused thunk code 2018-02-02 22:59:06 -08:00
Chris Robinson
e240351d81 Use a semaphore to signal the event handler 
Semaphores allow for semi-persistent signals, compared to a condition variable
which requires a mutex for proper detection. A semaphore can be 'post'ed after
writing some data on one thread, and another thread will be able to recognize
it quickly even if the post occured in between checking for data and waiting.

This more correctly fixes a race condition with events since the mixer
shouldn't be using mutexes, and arbitrary wake-ups just to make sure an event
wasn't missed was quite inefficient.
 2018-02-01 18:20:14 -08:00
Chris Robinson
7256bc92fa Add a thread to marshal events from the mixer 
To avoid having unknown user code running in the mixer thread that could
significantly delay the mixed output, a lockless ringbuffer is used for the
mixer to provide events that a secondary thread will pop off and process.
 2018-01-31 20:21:54 -08:00
Chris Robinson
0394d5a44f Rename EventLock to make it more clear it's protecting the callback 2018-01-30 12:34:25 -08:00
Chris Robinson
e7217760f3 Don't bother with an explicit stop backend method 2018-01-29 01:00:53 -08:00
Chris Robinson
328fd7329d Combine common initialization code into a function 2018-01-28 18:03:54 -08:00
Chris Robinson
c2710ffe87 Make EnabledEvts atomic 2018-01-28 16:58:41 -08:00