2694 Commits

Author SHA1 Message Date
Chris Robinson
05dace6525 Mix Dedicated effects to the real output if possible 2016-03-25 14:47:30 -07:00
Chris Robinson
3148986184 Implement AL_EXT_STEREO_ANGLES support 2016-03-25 14:40:44 -07:00
Chris Robinson
19b130c45d Use the "decoder" config section instead of "ambisonics" 2016-03-25 13:55:23 -07:00
Chris Robinson
b0acfa1763 Add a cast and a couple float type fixes 2016-03-24 11:11:17 -07:00
Chris Robinson
3646cf817c Trace the HQ decoder order 2016-03-23 16:00:07 -07:00
Chris Robinson
2847590d45 Simplify setting a custom channel map configuration 2016-03-23 15:11:33 -07:00
Chris Robinson
147274f165 Up-sample first-order content when using a higher order HQ decoder 2016-03-23 15:10:59 -07:00
Chris Robinson
0dc35784db Allow second-order HQ decoding
Could really do with some optimizations to the mixing gain calculations. For
ambisonic targets, the coefficients will only have 1 non-0 entry for each
output, so the double loop in unnecessarily wasteful. Similarly, most uses
won't need a full height encoding either, so a horizontal-only or mixed-order
target could reduce the number of channels.
2016-03-23 10:39:14 -07:00
Chris Robinson
713ac9e679 Add a specific output for first-order sources 2016-03-22 17:52:20 -07:00
Chris Robinson
0a03596af1 Simplify setting the matrix coeffs 2016-03-22 14:42:53 -07:00
Chris Robinson
3877545d8c Add a workaround for a buggy modff 2016-03-18 14:05:45 -07:00
Chris Robinson
ce575718ef Store the effect's output buffer in the effect state 2016-03-17 10:10:26 -07:00
Chris Robinson
606402fff0 Make sure enough reverb panning gains are defined 2016-03-16 08:51:12 -07:00
Chris Robinson
55ff0c143e Rename the BFormat channels to Aux 2016-03-16 06:49:35 -07:00
Chris Robinson
a3863d5834 Add config options to enable the hq ambisonic decoder 2016-03-16 01:36:57 -07:00
Chris Robinson
8ff4a54356 Properly handle negative matrix values and fix decoder initialization 2016-03-15 09:07:03 -07:00
Chris Robinson
3a26d853ba Replace the custom layout options with an ambdec loader
The ambisonic layout options were never very good for clarity or flexibility.
Hopefully using ambdec files will prove to be better.
2016-03-15 08:00:03 -07:00
Chris Robinson
23bce59c66 Rename a couple functions for more informative logging 2016-03-15 07:07:09 -07:00
Chris Robinson
53fadf5497 Add a dual-band ambisonic decoder
This uses a virtual B-Format buffer for mixing, and then uses a dual-band
decoder for improved positional quality. This currently only works with first-
order output since first-order input (from the AL_EXT_BFROMAT extension) would
not sound correct when fed through a second- or third-order decoder.

This also does not currently implement near-field compensation since near-field
rendering effects are not implemented.
2016-03-15 05:08:05 -07:00
Chris Robinson
64cb21cb9f Downgrade some ERRs to WARNs or TRACEs 2016-03-15 04:02:25 -07:00
Chris Robinson
066df88a2c Always mix to the real output for DirectChannels 2016-03-14 20:25:36 -07:00
Chris Robinson
919b35295e Add a loader for ambdec files 2016-03-14 20:13:50 -07:00
Chris Robinson
0220404a91 Use second-order coefficients for 5.1
Since the panning only drives 5 speakers, it shouldn't use more than 5
ambisonic channels (9 total in second order, minus 4 for unused height).
2016-03-13 03:32:32 -07:00
Chris Robinson
22abaa287d Use the real output's left and right channels with HRTF 2016-03-11 20:59:12 -08:00
Chris Robinson
5328972193 Separate writing to the output buffer from HRTF filtering 2016-03-11 20:44:05 -08:00
Chris Robinson
bb03fe227b Update the current HRTF delays if the stepping is not finished 2016-03-11 19:59:14 -08:00
Chris Robinson
859cc703e7 Use the proper left and right channels for UHJ output 2016-03-10 22:56:44 -08:00
Chris Robinson
d648486bcd Generalize GetChannelIdxByName 2016-03-10 14:29:44 -08:00
Chris Robinson
da5f75615b Allocate enough reverb panning gains 2016-03-10 01:45:30 -08:00
Chris Robinson
effb9d1e35 Keep track of the real output's channel names 2016-03-10 01:04:28 -08:00
Chris Robinson
a457157516 Organize the dry buffer properties into a struct 2016-03-09 23:43:57 -08:00
Chris Robinson
3e2672ec9f Track the virtual and real output buffers ecplicitly 2016-03-09 22:57:38 -08:00
Chris Robinson
4e3fdf9f5d Fix reverb with UHJ encoding 2016-03-03 01:41:42 -08:00
Chris Robinson
9fdca9e29f Remove the extra scaling on W for UHJ encoding
There seems to be some inconsistent info about whether W should be scaled by
sqrt(2) for encoding. Not applying the scaling results in a wider stereo image,
which seems more appropriate.
2016-03-01 15:48:23 -08:00
Chris Robinson
adce176a35 Separate the left and right output writes with UHJ encoding 2016-02-27 11:38:40 -08:00
Chris Robinson
99f685d20d Add an option for pair-wise stereo panning 2016-02-26 21:48:03 -08:00
Chris Robinson
ac91083ceb Use 2-channel UHJ for stereo output 2016-02-26 16:09:06 -08:00
Chris Robinson
67f086d1d4 Add a function to encode 2-channel UHJ from B-Format 2016-02-26 14:51:56 -08:00
Chris Robinson
b6824ca716 Add and use a copy-range string function 2016-02-24 04:53:32 -08:00
Chris Robinson
d04970e568 Exclude the file extension from the HRTF name 2016-02-24 04:21:03 -08:00
Chris Robinson
68a2ae4024 Replace the hrtf_tables option with hrtf-paths 2016-02-23 10:56:06 -08:00
Chris Robinson
e7ed3e2f72 Remove an unused function 2016-02-23 07:41:17 -08:00
Chris Robinson
ae1a2fa9c0 Allow selecting a preferred HRTF in alsoft-config
This currently only checks the default paths when they're being used.
2016-02-23 06:52:13 -08:00
Chris Robinson
2c6e59c4ca Fix when ESTRPIPE and EPIPE are the same 2016-02-22 08:12:09 -08:00
Chris Robinson
bd233c8cdb Avoid enumerating the same HRTF file twice 2016-02-21 04:46:14 -08:00
Chris Robinson
e6f120df23 Add a config option to specify the preferred HRTF 2016-02-21 02:44:02 -08:00
Chris Robinson
c2dd681940 Remove an unused declaration 2016-02-20 21:01:24 -08:00
Chris Robinson
e2bbee653e Include the HRTF filename in the HRTF memory chunk 2016-02-20 05:32:42 -08:00
Chris Robinson
e1ce7f9180 Use an 8-channel cube for HRTF's virtual format.
There were phase issues caused by applying HRTF directly to the B-Format
channels, since the HRIR delays were all averaged which removed the inter-aural
time-delay, which in turn removed significant spatial information.
2016-02-20 00:53:01 -08:00
Chris Robinson
7ff5cf7820 Allocate each HRTF as a single chunk 2016-02-16 19:56:44 -08:00