mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-02 09:01:50 -05:00
b5e0151cc0
Move the noise setting in the dither struct so that it can be handled separately. Setup dither separately. Set used cpu_flags in structures after setup.
95 lines
3 KiB
C
95 lines
3 KiB
C
/* Spa
|
|
*
|
|
* Copyright © 2022 Wim Taymans
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#include <spa/utils/defs.h>
|
|
#include <spa/utils/string.h>
|
|
#include <spa/param/audio/raw.h>
|
|
|
|
#define DITHER_OPS_MAX_ALIGN 16
|
|
#define DITHER_OPS_MAX_OVERREAD 16
|
|
|
|
struct dither {
|
|
uint32_t quantize;
|
|
uint32_t noise;
|
|
#define DITHER_METHOD_NONE 0
|
|
#define DITHER_METHOD_RECTANGULAR 2
|
|
#define DITHER_METHOD_TRIANGULAR 3
|
|
#define DITHER_METHOD_SHAPED_5 4
|
|
uint32_t method;
|
|
uint32_t n_channels;
|
|
uint32_t cpu_flags;
|
|
|
|
struct spa_log *log;
|
|
|
|
void (*process) (struct dither *d, void * SPA_RESTRICT dst[],
|
|
const void * SPA_RESTRICT src[], uint32_t n_samples);
|
|
void (*free) (struct dither *d);
|
|
|
|
uint32_t random[16 + DITHER_OPS_MAX_ALIGN/sizeof(uint32_t)];
|
|
float *dither;
|
|
uint32_t dither_size;
|
|
float scale;
|
|
};
|
|
|
|
int dither_init(struct dither *d);
|
|
|
|
static const struct dither_method_info {
|
|
const char *label;
|
|
const char *description;
|
|
uint32_t method;
|
|
} dither_method_info[] = {
|
|
[DITHER_METHOD_NONE] = { "none", "Disabled", DITHER_METHOD_NONE },
|
|
[DITHER_METHOD_RECTANGULAR] = { "rectangular", "Rectangular dithering", DITHER_METHOD_RECTANGULAR },
|
|
[DITHER_METHOD_TRIANGULAR] = { "triangular", "Triangular dithering", DITHER_METHOD_TRIANGULAR },
|
|
[DITHER_METHOD_SHAPED_5] = { "shaped5", "Shaped 5 dithering", DITHER_METHOD_SHAPED_5 }
|
|
};
|
|
|
|
static inline uint32_t dither_method_from_label(const char *label)
|
|
{
|
|
uint32_t i;
|
|
for (i = 0; i < SPA_N_ELEMENTS(dither_method_info); i++) {
|
|
if (spa_streq(dither_method_info[i].label, label))
|
|
return dither_method_info[i].method;
|
|
}
|
|
return DITHER_METHOD_NONE;
|
|
}
|
|
|
|
#define dither_process(d,...) (d)->process(d, __VA_ARGS__)
|
|
#define dither_free(d) (d)->free(d)
|
|
|
|
#define DEFINE_FUNCTION(name,arch) \
|
|
void dither_##name##_##arch(struct dither *d, \
|
|
void * SPA_RESTRICT dst[], \
|
|
const void * SPA_RESTRICT src[], \
|
|
uint32_t n_samples);
|
|
|
|
DEFINE_FUNCTION(f32, c);
|
|
#if defined(HAVE_SSE2)
|
|
DEFINE_FUNCTION(f32, sse2);
|
|
#endif
|
|
|
|
#undef DEFINE_FUNCTION
|