Update OpenAL Soft to 1.18.2

libs/openal-soft/alsoftrc.sample

@@ -48,7 +48,10 @@
 ## channels:
 #  Sets the output channel configuration. If left unspecified, one will try to
 #  be detected from the system, and defaulting to stereo. The available values
-#  are: mono, stereo, quad, surround51, surround51rear, surround61, surround71
+#  are: mono, stereo, quad, surround51, surround51rear, surround61, surround71,
+#  ambi1, ambi2, ambi3. Note that the ambi* configurations provide ambisonic
+#  channels of the given order (using ACN ordering and SN3D normalization by
+#  default), which need to be decoded to play correctly on speakers.
 #channels =
 
 ## sample-type:
@@ -78,7 +81,7 @@
 #  which helps protect against skips when the CPU is under load, but increases
 #  the delay between a sound getting mixed and being heard. Acceptable values
 #  range between 2 and 16.
-#periods = 4
+#periods = 3
 
 ## stereo-mode:
 #  Specifies if stereo output is treated as being headphones or speakers. With
@@ -86,6 +89,20 @@
 #  Valid settings are auto, speakers, and headphones.
 #stereo-mode = auto
 
+## stereo-encoding:
+#  Specifies the encoding method for non-HRTF stereo output. 'panpot' (default)
+#  uses standard amplitude panning (aka pair-wise, stereo pair, etc) between
+#  -30 and +30 degrees, while 'uhj' creates stereo-compatible two-channel UHJ
+#  output, which encodes some surround sound information into stereo output
+#  that can be decoded with a surround sound receiver. If crossfeed filters are
+#  used, UHJ is disabled.
+#stereo-encoding = panpot
+
+## ambi-format:
+#  Specifies the channel order and normalization for the "ambi*" set of channel
+#  configurations. Valid settings are: fuma, acn+sn3d, acn+n3d
+#ambi-format = acn+sn3d
+
 ## hrtf:
 #  Controls HRTF processing. These filters provide better spatialization of
 #  sounds while using headphones, but do require a bit more CPU power. The
@@ -96,22 +113,24 @@
 #  respectively.
 #hrtf = auto
 
-## hrtf_tables:
-#  Specifies a comma-separated list of files containing HRTF data sets. The
-#  format of the files are described in hrtf.txt. The filenames may contain
-#  these markers, which will be replaced as needed:
-#  %r - Device sampling rate
-#  %s - Non-greedy string (up to the following matching characters)
-#  %% - Percent sign (%)
-#  The listed files are relative to system-dependant data directories. On
-#  Windows this is:
+## default-hrtf:
+#  Specifies the default HRTF to use. When multiple HRTFs are available, this
+#  determines the preferred one to use if none are specifically requested. Note
+#  that this is the enumerated HRTF name, not necessarily the filename.
+#default-hrtf =
+
+## hrtf-paths:
+#  Specifies a comma-separated list of paths containing HRTF data sets. The
+#  format of the files are described in docs/hrtf.txt. The files within the
+#  directories must have the .mhr file extension to be recognized. By default,
+#  OS-dependent data paths will be used. They will also be used if the list
+#  ends with a comma. On Windows this is:
 #  $AppData\openal\hrtf
 #  And on other systems, it's (in order):
 #  $XDG_DATA_HOME/openal/hrtf  (defaults to $HOME/.local/share/openal/hrtf)
 #  $XDG_DATA_DIRS/openal/hrtf  (defaults to /usr/local/share/openal/hrtf and
 #                               /usr/share/openal/hrtf)
-#  An absolute path may also be specified, if the given file is elsewhere.
-#hrtf_tables = %s.mhr
+#hrtf-paths =
 
 ## cf_level:
 #  Sets the crossfeed level for stereo output. Valid values are:
@@ -131,7 +150,6 @@
 #  point - nearest sample, no interpolation
 #  linear - extrapolates samples using a linear slope between samples
 #  sinc4 - extrapolates samples using a 4-point Sinc filter
-#  sinc8 - extrapolates samples using an 8-point Sinc filter
 #  bsinc - extrapolates samples using a band-limited Sinc filter (varying
 #          between 12 and 24 points, with anti-aliasing)
 #  Specifying other values will result in using the default (linear).
@@ -156,13 +174,38 @@
 #  can use a non-negligible amount of CPU time if an effect is set on it even
 #  if no sources are feeding it, so this may help when apps use more than the
 #  system can handle.
-#slots = 4
+#slots = 64
 
 ## sends:
-#  Sets the number of auxiliary sends per source. When not specified (default),
-#  it allows the app to request how many it wants. The maximum value currently
-#  possible is 4.
-#sends =
+#  Limits the number of auxiliary sends allowed per source. Setting this higher
+#  than the default has no effect.
+#sends = 16
+
+## output-limiter:
+#  Applies a gain limiter on the final mixed output. This reduces the volume
+#  when the output samples would otherwise clamp, avoiding excessive clipping
+#  noise.
+#output-limiter = true
+
+## dither:
+#  Applies dithering on the final mix, for 8- and 16-bit output by default.
+#  This replaces the distortion created by nearest-value quantization with low-
+#  level whitenoise.
+#dither = true
+
+## dither-depth:
+#  Quantization bit-depth for dithered output. A value of 0 (or less) will
+#  match the output sample depth. For int32, uint32, and float32 output, 0 will
+#  disable dithering because they're at or beyond the rendered precision. The
+#  maximum dither depth is 24.
+#dither-depth = 0
+
+## volume-adjust:
+#  A global volume adjustment for source output, expressed in decibels. The
+#  value is logarithmic, so +6 will be a scale of (approximately) 2x, +12 will
+#  be a scale of 4x, etc. Similarly, -6 will be x1/2, and -12 is about x1/4. A
+#  value of 0 means no change.
+#volume-adjust = 0
 
 ## excludefx: (global)
 #  Sets which effects to exclude, preventing apps from using them. This can
@@ -192,6 +235,69 @@
 #  of a context error. On Windows, a breakpoint exception is generated.
 #trap-al-error = false
 
+##
+## Ambisonic decoder stuff
+##
+[decoder]
+
+## hq-mode:
+#  Enables a high-quality ambisonic decoder. This mode is capable of frequency-
+#  dependent processing, creating a better reproduction of 3D sound rendering
+#  over surround sound speakers. Enabling this also requires specifying decoder
+#  configuration files for the appropriate speaker configuration you intend to
+#  use (see the quad, surround51, etc options below). Currently, up to third-
+#  order decoding is supported.
+hq-mode = false
+
+## distance-comp:
+#  Enables compensation for the speakers' relative distances to the listener.
+#  This applies the necessary delays and attenuation to make the speakers
+#  behave as though they are all equidistant, which is important for proper
+#  playback of 3D sound rendering. Requires the proper distances to be
+#  specified in the decoder configuration file.
+distance-comp = true
+
+## nfc:
+#  Enables near-field control filters. This simulates and compensates for low-
+#  frequency effects caused by the curvature of nearby sound-waves, which
+#  creates a more realistic perception of sound distance. Note that the effect
+#  may be stronger or weaker than intended if the application doesn't use or
+#  specify an appropriate unit scale, or if incorrect speaker distances are set
+#  in the decoder configuration file. Requires hq-mode to be enabled.
+nfc = true
+
+## nfc-ref-delay
+#  Specifies the reference delay value for ambisonic output. When channels is
+#  set to one of the ambi* formats, this option enables NFC-HOA output with the
+#  specified Reference Delay parameter. The specified value can then be shared
+#  with an appropriate NFC-HOA decoder to reproduce correct near-field effects.
+#  Keep in mind that despite being designed for higher-order ambisonics, this
+#  applies to first-order output all the same. When left unset, normal output
+#  is created with no near-field simulation.
+nfc-ref-delay =
+
+## quad:
+#  Decoder configuration file for Quadrophonic channel output. See
+#  docs/ambdec.txt for a description of the file format.
+quad =
+
+## surround51:
+#  Decoder configuration file for 5.1 Surround (Side and Rear) channel output.
+#  See docs/ambdec.txt for a description of the file format.
+surround51 =
+
+## surround61:
+#  Decoder configuration file for 6.1 Surround channel output. See
+#  docs/ambdec.txt for a description of the file format.
+surround61 =
+
+## surround71:
+#  Decoder configuration file for 7.1 Surround channel output. See
+#  docs/ambdec.txt for a description of the file format. Note: This can be used
+#  to enable 3D7.1 with the appropriate configuration and speaker placement,
+#  see docs/3D7.1.txt.
+surround71 =
+
 ##
 ## Reverb effect stuff (includes EAX reverb)
 ##