mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
a57f2f25b6
Use a wrap around delay ringbuffer. We can then avoid some modulo arithmetic and read more efficiently. Also handle the delay convolver case better by reversing the taps and reading the taps and delay buffer without extra overhead.
140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
/* Spa */
|
|
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
|
|
/* SPDX-License-Identifier: MIT */
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#include <spa/utils/defs.h>
|
|
#include <spa/utils/string.h>
|
|
#include <spa/param/audio/raw.h>
|
|
|
|
#include "crossover.h"
|
|
#include "delay.h"
|
|
|
|
#define VOLUME_MIN 0.0f
|
|
#define VOLUME_NORM 1.0f
|
|
|
|
#define _M(ch) (1UL << SPA_AUDIO_CHANNEL_ ## ch)
|
|
#define MASK_MONO _M(FC)|_M(MONO)|_M(UNKNOWN)
|
|
#define MASK_STEREO _M(FL)|_M(FR)|_M(UNKNOWN)
|
|
#define MASK_QUAD _M(FL)|_M(FR)|_M(RL)|_M(RR)|_M(UNKNOWN)
|
|
#define MASK_3_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)
|
|
#define MASK_5_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
|
|
#define MASK_7_1 _M(FL)|_M(FR)|_M(FC)|_M(LFE)|_M(SL)|_M(SR)|_M(RL)|_M(RR)
|
|
|
|
#define BUFFER_SIZE 4096
|
|
#define MAX_TAPS 255
|
|
|
|
struct channelmix {
|
|
uint32_t src_chan;
|
|
uint32_t dst_chan;
|
|
uint64_t src_mask;
|
|
uint64_t dst_mask;
|
|
uint32_t cpu_flags;
|
|
#define CHANNELMIX_OPTION_MIX_LFE (1<<0) /**< mix LFE */
|
|
#define CHANNELMIX_OPTION_NORMALIZE (1<<1) /**< normalize volumes */
|
|
#define CHANNELMIX_OPTION_UPMIX (1<<2) /**< do simple upmixing */
|
|
uint32_t options;
|
|
#define CHANNELMIX_UPMIX_NONE 0 /**< disable upmixing */
|
|
#define CHANNELMIX_UPMIX_SIMPLE 1 /**< simple upmixing */
|
|
#define CHANNELMIX_UPMIX_PSD 2 /**< Passive Surround Decoding upmixing */
|
|
uint32_t upmix;
|
|
|
|
struct spa_log *log;
|
|
const char *func_name;
|
|
|
|
#define CHANNELMIX_FLAG_ZERO (1<<0) /**< all zero components */
|
|
#define CHANNELMIX_FLAG_IDENTITY (1<<1) /**< identity matrix */
|
|
#define CHANNELMIX_FLAG_EQUAL (1<<2) /**< all values are equal */
|
|
#define CHANNELMIX_FLAG_COPY (1<<3) /**< 1 on diagonal, can be nxm */
|
|
uint32_t flags;
|
|
float matrix_orig[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];
|
|
float matrix[SPA_AUDIO_MAX_CHANNELS][SPA_AUDIO_MAX_CHANNELS];
|
|
|
|
float freq; /* sample frequency */
|
|
float lfe_cutoff; /* in Hz, 0 is disabled */
|
|
float fc_cutoff; /* in Hz, 0 is disabled */
|
|
float rear_delay; /* in ms, 0 is disabled */
|
|
float widen; /* stereo widen. 0 is disabled */
|
|
uint32_t hilbert_taps; /* to phase shift, 0 disabled */
|
|
struct lr4 lr4[SPA_AUDIO_MAX_CHANNELS];
|
|
|
|
float buffer[2][BUFFER_SIZE*2];
|
|
uint32_t pos[2];
|
|
uint32_t delay;
|
|
float taps[MAX_TAPS];
|
|
uint32_t n_taps;
|
|
|
|
void (*process) (struct channelmix *mix, void * SPA_RESTRICT dst[],
|
|
const void * SPA_RESTRICT src[], uint32_t n_samples);
|
|
void (*set_volume) (struct channelmix *mix, float volume, bool mute,
|
|
uint32_t n_channel_volumes, float *channel_volumes);
|
|
void (*free) (struct channelmix *mix);
|
|
|
|
void *data;
|
|
};
|
|
|
|
int channelmix_init(struct channelmix *mix);
|
|
|
|
static const struct channelmix_upmix_info {
|
|
const char *label;
|
|
const char *description;
|
|
uint32_t upmix;
|
|
} channelmix_upmix_info[] = {
|
|
[CHANNELMIX_UPMIX_NONE] = { "none", "Disabled", CHANNELMIX_UPMIX_NONE },
|
|
[CHANNELMIX_UPMIX_SIMPLE] = { "simple", "Simple upmixing", CHANNELMIX_UPMIX_SIMPLE },
|
|
[CHANNELMIX_UPMIX_PSD] = { "psd", "Passive Surround Decoding", CHANNELMIX_UPMIX_PSD }
|
|
};
|
|
|
|
static inline uint32_t channelmix_upmix_from_label(const char *label)
|
|
{
|
|
SPA_FOR_EACH_ELEMENT_VAR(channelmix_upmix_info, i) {
|
|
if (spa_streq(i->label, label))
|
|
return i->upmix;
|
|
}
|
|
return CHANNELMIX_UPMIX_NONE;
|
|
}
|
|
|
|
#define channelmix_process(mix,...) (mix)->process(mix, __VA_ARGS__)
|
|
#define channelmix_set_volume(mix,...) (mix)->set_volume(mix, __VA_ARGS__)
|
|
#define channelmix_free(mix) (mix)->free(mix)
|
|
|
|
#define DEFINE_FUNCTION(name,arch) \
|
|
void channelmix_##name##_##arch(struct channelmix *mix, \
|
|
void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[], \
|
|
uint32_t n_samples);
|
|
|
|
#define CHANNELMIX_OPS_MAX_ALIGN 16
|
|
|
|
DEFINE_FUNCTION(copy, c);
|
|
DEFINE_FUNCTION(f32_n_m, c);
|
|
DEFINE_FUNCTION(f32_1_2, c);
|
|
DEFINE_FUNCTION(f32_2_1, c);
|
|
DEFINE_FUNCTION(f32_4_1, c);
|
|
DEFINE_FUNCTION(f32_2_4, c);
|
|
DEFINE_FUNCTION(f32_2_3p1, c);
|
|
DEFINE_FUNCTION(f32_2_5p1, c);
|
|
DEFINE_FUNCTION(f32_2_7p1, c);
|
|
DEFINE_FUNCTION(f32_3p1_2, c);
|
|
DEFINE_FUNCTION(f32_5p1_2, c);
|
|
DEFINE_FUNCTION(f32_5p1_3p1, c);
|
|
DEFINE_FUNCTION(f32_5p1_4, c);
|
|
DEFINE_FUNCTION(f32_7p1_2, c);
|
|
DEFINE_FUNCTION(f32_7p1_3p1, c);
|
|
DEFINE_FUNCTION(f32_7p1_4, c);
|
|
|
|
#if defined (HAVE_SSE)
|
|
DEFINE_FUNCTION(copy, sse);
|
|
DEFINE_FUNCTION(f32_n_m, sse);
|
|
DEFINE_FUNCTION(f32_2_3p1, sse);
|
|
DEFINE_FUNCTION(f32_2_5p1, sse);
|
|
DEFINE_FUNCTION(f32_2_7p1, sse);
|
|
DEFINE_FUNCTION(f32_3p1_2, sse);
|
|
DEFINE_FUNCTION(f32_5p1_2, sse);
|
|
DEFINE_FUNCTION(f32_5p1_3p1, sse);
|
|
DEFINE_FUNCTION(f32_5p1_4, sse);
|
|
DEFINE_FUNCTION(f32_7p1_4, sse);
|
|
#endif
|
|
|
|
#undef DEFINE_FUNCTION
|