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78 commits

Author SHA1 Message Date
Wim Taymans
f7c3d37969 fmt-ops: allocate shaper memory dynamically 
It is based on the number of channels so allocate it dynamically.
 2025-10-24 12:46:38 +02:00
Wim Taymans
0817001728 audioconvert: add clear function 
Sets all samples to 0 in the target format.
 2025-07-02 10:27:26 +02:00
Wim Taymans
0c8f803d59 audioconvert: optimise f32d to/from s16s conversions 
They are mostly used for sending and receiving RTP so it might be worth
to make them a bit faster.
 2025-01-24 10:37:02 +01:00
sunyuechi
245adda985 fmt-ops: add RVV optimizations for s32_to_f32d 2024-09-29 11:17:42 +08:00
sunyuechi
79d41e183e fmt-ops: add RVV optimizations for f32d_to_s32 2024-09-26 00:55:49 +08:00
sunyuechi
74832445ba fmt-ops: add RVV optimizations for s16_to_f32d 2024-09-25 10:50:05 +00:00
sunyuechi
8a8843ba20 fmt-ops: add RVV optimizations for f32d_s16 2024-09-23 08:10:43 +00:00
sunyuechi
852de6c35c fmt-ops: add RVV optimizations for f32d_s16d 2024-09-23 08:10:43 +00:00
sunyuechi
d932e52d5b fmt-ops: add R-V V optimizations for f32_s16 2024-09-18 10:40:48 +00:00
Wim Taymans
b421331275 doc: clarify the dither.noise 
Fixes #4057
 2024-06-13 11:38:26 +02:00
Barnabás Pőcze
934ab3036e treewide: use SPDX tags to specify copyright information 
SPDX tags make the licensing information easy to understand and clear,
and they are machine parseable.

See https://spdx.dev for more information.
 2023-02-16 10:54:48 +00:00
Wim Taymans
d22feab92a spa: add macro to simplify array iterations some more 
uint32_t i;
	for (i = 0; i < SPA_N_ELEMENTS(some_array); i++)
		.. stuff with some_array[i].foo ...

   becomes:

	SPA_FOR_EACH_ELEMENT_VAR(some_array, p)
		.. stuff with p->foo ..
 2022-09-30 16:24:26 +02:00
Wim Taymans
a145c42ec4 audioconvert: make separate noise functions 
So that we can reuse optimized versions in unoptimized noise
functions.
Do allocation a little different so that we can align everything
from the start.
 2022-09-29 21:36:06 +02:00
Wim Taymans
ada39f3048 audioconvert: improve noise bits 
Make a new noise method called PATTERN and use it to add a slow (every
1024 samples) repeating pattern of -1, 0.
Only use this method when we don't already use triangular dither.

See #2540
 2022-07-18 11:41:57 +02:00
Wim Taymans
57f63feb92 audioconvert: Fix Wannamaker name 2022-07-18 10:22:21 +02:00
Wim Taymans
a4db745a7e audioconvert: improve noise shaping 
Reorganize things a little so we can add more noise shapers.
Add sloped triangular noise.
Add wanamaker3 noise shaping.
 2022-07-15 12:36:15 +02:00
Wim Taymans
7745346292 audioconvert: add sse2 s16 dither functions 2022-07-12 10:34:13 +02:00
Wim Taymans
c35006f040 audioconvert: move scaling to setup 2022-07-11 17:50:20 +02:00
Wim Taymans
68f883ff77 audioconvert: fix dither scale 
Rectangular dither should be [-0.5, 0.5]
Triangular dither should be [-1.0, 1.0]
Noise should add extra bits.
 2022-07-11 17:19:28 +02:00
Wim Taymans
dd1d5960b4 audioconvert: implement f64s 
Add swapping functions for f64s.
Fix the awkward interleave/deinterleave names for 32s.
 2022-07-11 10:58:51 +02:00
Wim Taymans
06b1cf8663 audioconvert: implement (de)interleave with existing functions 2022-06-30 18:24:05 +02:00
Wim Taymans
9b37142ef6 audioconvert: implement noise shaping 
To compare the results:

  pw-cat -r test.wav --format=u8 -P '{ dither.method=none }'

vs:

  pw-cat -r test.wav --format=u8 -P '{ dither.method=shaped5 }'
 2022-06-29 17:33:37 +02:00
Wim Taymans
938f2b123e audioconvert: improve format conversion 
Make dither noise as a value between -0.5 and 0.5 and add this
to the scaled samples.
For this, we first need to do the scaling and then the CLAMP to
the target depth. This optimizes to the same code but allows us
to avoid under and overflows when we add the dither noise.

Add more dithering methods.

Expose a dither.method property on audioconvert. Disable dither when
the target depth > 16.
 2022-06-29 14:10:15 +02:00
Wim Taymans
22d02a7891 audioconvert: dither in 24 bits 
This saves some shifts.
 2022-06-28 17:15:27 +02:00
Wim Taymans
7a0f201dc7 audioconvert: set right flags for functions 2022-06-28 17:02:15 +02:00
Wim Taymans
6b49bded3a audioconvert: move dither and noise to fmt-ops 
We need to do dithering and noise when converting f32 to the
target format. This is more natural because we can work in 32 bits
integers instead of floats.

This will also make it possible to actually calculate the error between
source and target values and implement some sort of feedback and
noise shaping later.
 2022-06-28 16:55:50 +02:00
Wim Taymans
734470f0cd audioconvert: add SSE (de)interleave_32(s) versions 2022-03-11 15:02:02 +01:00
Wim Taymans
9f5caa6358 audioconvert: add f64 conversion 
See #1990
 2022-01-10 13:04:31 +01:00
Wim Taymans
0ace131d72 audioconvert: add stereo deinterleave neon asm 
This can take some shortcuts and convert twice as many samples in one
iteration as the strided stereo deinterleave one.
 2021-10-28 11:30:04 +02:00
Julian Bouzas
20e64b39da fmtconvert: add support for U16, U24, U32 and U24_32 formats 2021-09-08 14:24:26 -04:00
Wim Taymans
df9f79d869 audioconvert: add converstion to and from alaw/ulaw 2021-08-17 17:32:25 +02:00
Wim Taymans
a5e2e955d2 audioconvert: add more conversions 
Add the other endian conversions.
 2021-08-17 14:45:00 +02:00
George Kiagiadakis
bc1f9d304f audioconvert: handle S8/S8P raw audio formats 2021-05-05 08:56:59 +03:00
Wim Taymans
a8faad9f17 fmt: support f32p -> s24s conversion 
As used by MAudio Fasttrack Pro

See rhbz#916017
 2021-01-14 17:58:54 +01:00
Wim Taymans
a520335581 fmt-ops: add sse2 version of f32 to s16 planar/interleaved 2020-07-03 11:05:26 +02:00
Wim Taymans
1b3aaba206 fmt-ops: set the right flags on optimized functions 
Or else we could select an avx2 version on a non-capable CPU.

Fixes #227
 2020-04-02 17:34:47 +02:00
Wim Taymans
527dc89365 fmt-ops: add neon optimizations for format conversion 2020-03-30 10:59:21 -04:00
Wim Taymans
949dba7bfc fmt-ops: flesh out avx optimizations 2020-03-17 17:27:47 +01:00
Wim Taymans
3a911dfe3b fmt-ops: add avx2 optimized version 
Only one optimized version but the sse2 version are compiled with
the avx2 flags so that they get optimized better.
 2020-03-16 16:11:29 +01:00
Wim Taymans
fd3dd14ebe fmt-ops: add optimized f32 to s16 stereo conversion 2020-03-16 13:04:21 +01:00
Wim Taymans
f4387e0568 fmt-ops: add support for s24 with endian conversion 2020-01-27 15:46:25 +01:00
Wim Taymans
3c9aa2e96c fmt: add sse2 optimized s32->f32d 2019-10-24 11:06:04 +02:00
Wim Taymans
d8e399dee9 audioconvert: pass state to functions 
Pass some state to convert and channelmix functions. This makes it
possible to select per channel optimized convert functions but
also makes it possible to implement noise shaping later.
Pass the channelmix matrix and volume in the state.
Handle specialized 2 channel s16 -> f32 conversion
 2019-03-29 17:39:59 +01:00
Wim Taymans
d260cb19be audioconvert: compile c version separately 
Also compile the c versions in a separate module with their own
flags.
 2019-03-28 21:07:53 +01:00
Wim Taymans
c8d3d475bb audioconvert: handle more optimizations 
Compile an optimized library for the given CPU with the right flags,
then link it with the main library.
 2019-03-27 17:58:48 +01:00
Wim Taymans
ecc3e78ad4 fmt-ops: use faster f32 -> s32 conversion 2019-03-26 17:24:14 +01:00
Wim Taymans
0505f2dc98 audioconvert: implement passthrough 
Add some const and SPA_RESTRICT to methods
When the input and output is the same, work in passthrough mode
where we simply copy place the input pointer onto the output buffer
without doing a memcpy.
Do memcpy when the resampler is not active.
 2019-03-20 19:29:14 +01:00
Wim Taymans
74cf412f47 utils: add debugable spa_memcpy 2019-03-20 19:27:46 +01:00
Wim Taymans
fa3bcabbca audioconvert: some more optimizations 2019-03-20 13:04:44 +01:00
George Kiagiadakis
d9c2f77cfe spa/audioconvert: don't include xmmintrin.h in the non-sse fmt-ops 
Fixes compilation for arm
 2019-02-13 11:22:57 +01:00