Chris Robinson
22a7bcd5ad
Avoid placing a 2K sample buffer on the stack
2018-03-21 09:01:32 -07:00
Chris Robinson
ecc51c8c55
Clean up some code formatting in the pitch shifter source
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Clean up excessive newlines and extra-long comments, move static inline
definitions to their declarations.
2018-03-21 08:56:26 -07:00
Chris Robinson
55a73b8df9
Fix for older MSVC lacking strtof
2018-03-21 08:35:37 -07:00
kcat
c40b4ce3f2
Merge pull request #177 from Raulshc/Pitch-shifter
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EFX:Pitch shifter
2018-03-21 08:35:09 -07:00
Chris Robinson
47260fc70b
Update the multi-reverb example with improved transitions
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This better calculates the environment coverage by correctly calculating the
portal's extents, improves the panning direction when close to the portal, and
applies attenuation based on contribution. Movement has changed to make the
listener move back and forth between environments with a stationary source,
rather than continually looping environments with a position-relative source.
2018-03-20 23:58:32 -07:00
Raulshc
c38854fe3d
EFX:Own size for pitch shifter buffers
2018-03-19 16:48:00 +01:00
Chris Robinson
df6e4617e4
Fix the reverb panning behavior to better fit the spec
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Previously it would attenuate the response from direction opposite to the
vector, whereas the property descriptions say it should simply move all
reflections toward the given direction.
2018-03-19 06:41:38 -07:00
Raulshc
56423b9ef1
Alsoft-config: Add pitch shifter effect
2018-03-18 17:53:07 +01:00
Raulshc
6fd23f0984
EFX:Pitch Shifter implementation
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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
325fca5215
Change the presets for the multireverb example
2018-03-16 05:01:00 -07:00
Chris Robinson
3fde27d890
Use a macro template to define similar functions
2018-03-15 00:28:49 -07:00
Chris Robinson
445f63f350
Remove an extraneous +
2018-03-14 23:59:20 -07:00
Chris Robinson
603e3e23ac
Remove an outdated comment
2018-03-14 23:51:13 -07:00
Chris Robinson
2011421e18
Release the PulseAudio mainloop lock sooner
2018-03-14 23:48:46 -07:00
Chris Robinson
7c0e68a33e
Store the filter history in local variables
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Despite being marked as restrict (and const for src) to mark the pointers as
being non-aliased, it seems the compiler optimizes better this way.
2018-03-14 17:27:41 -07:00
Chris Robinson
f65e83c349
Avoid using pa_stream_begin_write with PulseAudio
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It seems to actually have a negative performance impact when the system is
under load. Without having actual measurements for any potential benefits,
simply go with the recommended (and previous fallback) method of allocating
space for the write and passing the free method.
Ideally some kind of ring buffer could be used, so rather than constantly
allocating and freeing blocks of memory, it uses the same memory over again
with the callback marking each one as reusable. Unfortunately the callback
isn't given much information to work with, and the update size (minreq) can
potentially change during playback, which complicates things.
2018-03-14 03:21:26 -07:00
Chris Robinson
942abab8f9
Move a loop into a function
2018-03-13 03:45:24 -07:00
Chris Robinson
8eb7a94e1c
Apply a distance decay on the source send for the reverb's DecayLFRatio
2018-03-11 22:40:08 -07:00
Chris Robinson
6b35a4534f
Comment and clarify some code
2018-03-11 22:18:11 -07:00
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
30821e978b
Add extern "C" to some headers
2018-03-09 17:24:03 -08:00
Chris Robinson
c0e7a5b8b0
Prefix SDL2 device names on Windows
2018-03-09 11:41:28 -08:00
Chris Robinson
8b24255557
Request the device's sample type for SDL2
2018-03-09 10:53:03 -08:00
Chris Robinson
46e7e96eb3
Store the frame size for the SDL2 backend
2018-03-08 22:23:36 -08:00
Chris Robinson
41cc82e84b
Print the unsupported values from SDL2
2018-03-08 22:09:30 -08:00
Chris Robinson
2866c6cf28
Init and quit the SDL2 audio subsystem with the factory
2018-03-08 18:59:22 -08:00
Chris Robinson
0c7fa1b955
Avoid deinitializing backends that never initialized
2018-03-08 18:53:49 -08:00
Chris Robinson
aa7df8183f
Also save the update size with SDL2
2018-03-08 18:22:03 -08:00
Chris Robinson
58760e6184
Use the audio device lock for the SDL2 backend
2018-03-08 18:16:10 -08:00
Chris Robinson
52ca70d98e
Properly close the SDL2 audio device
2018-03-08 18:12:14 -08:00
Chris Robinson
d4fc87fc9c
Avoid calling SDL_GetNumAudioDevices multiple times
2018-03-08 18:07:49 -08:00
Chris Robinson
2187316bce
Use function-like macros to call filter and effect vtable methods
2018-03-08 17:48:22 -08:00
Chris Robinson
52dee31270
Only calculate the modulation samples once for all 4 channels
2018-03-08 17:48:22 -08:00
Chris Robinson
22d3e3b563
Simplify modulator effect index updating
2018-03-08 17:48:21 -08:00
Chris Robinson
4e613c5d4b
Rename UpdateContextSources for clarity
2018-03-08 17:48:21 -08:00
Chris Robinson
07c8857558
Fix struct forward declaration typo
2018-03-08 17:48:21 -08:00
Chris Robinson
9bd1678299
Fix adding to and removing from the active effect slots
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It wasn't properly removing all duplicates on insertion, and didn't remove the
first effect slot when removing them.
2018-03-08 17:48:21 -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
kcat
5133fe5115
Merge pull request #175 from jhasse/sdl2-backend
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Add SDL2 backend for playback, fix #173
2018-03-08 17:47:32 -08:00
Jan Niklas Hasse
2eb29d538b
SDL2 backend: Reset device parameters
2018-03-08 20:42:47 +01:00
Jan Niklas Hasse
0af075b5ff
SDL2 backend: Allow changes to channels and format
2018-03-08 20:27:02 +01:00
Jan Niklas Hasse
ef2b813776
SDL2 backend: Allow frequency changes
2018-03-08 10:17:02 +01:00
Jan Niklas Hasse
a6f93a501a
Handle passing NULL to SDL_OpenAudioDevice as a special device
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https://discourse.libsdl.org/t/changing-audio-output-when-the-default-audio-playback-device-changes/22399/2
2018-03-08 10:07:22 +01:00
Jan Niklas Hasse
767807cd22
SDL2 backend: Use callback instead of a timing loop
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The system clock and audio clock aren't necessarily synchronized.
2018-03-08 09:51:44 +01:00
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
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The write method already checks and returns how much it managed to fit in.
2018-03-03 21:57:42 -08:00
Chris Robinson
945d74cbc9
Avoid some code duplication
2018-03-03 14:04:10 -08:00
Chris Robinson
b8636a3dbf
Add some missing locks to protect reading state
2018-03-03 13:54:21 -08:00
Chris Robinson
4e6c758daf
Use a plain mutex for the property lock
2018-03-03 13:42:37 -08:00
