mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-02 09:01:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

audioconvert: add delay to rear channels when upmixing

Browse source 
See #861
This commit is contained in:
Wim Taymans 2022-03-01 09:53:40 +01:00
parent d62d2764e8
commit 5a307c11e1
9 changed files with 141 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

37
spa/plugins/audioconvert/channelmix-ops-c.c
View file

@ -287,15 +287,20 @@ channelmix_f32_2_5p1_c(struct channelmix *mix, void * SPA_RESTRICT dst[],
for (i = 0; i < n_dst; i++)
memset(d[i], 0, n_samples * sizeof(float));
}
else if (v0 == 1.0f && v1 == 1.0f && v4 == 1.0f && v5 == 1.0f) {
else if (v0 == 1.0f && v1 == 1.0f) {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = d[4][n] = s[0][n];
d[1][n] = d[5][n] = s[1][n];
d[0][n] = s[0][n];
d[1][n] = s[1][n];
d[2][n] = c;
}
lr4_process(&mix->lr4[3], d[3], d[2], v3, n_samples);
lr4_process(&mix->lr4[2], d[2], d[2], v2, n_samples);
delay_run(mix->buffer[0], &mix->pos[0], BUFFER_SIZE, mix->delay,
d[4], s[0], v4, n_samples);
delay_run(mix->buffer[1], &mix->pos[1], BUFFER_SIZE, mix->delay,
d[5], s[1], v5, n_samples);
}
else {
for (n = 0; n < n_samples; n++) {
@ -303,11 +308,14 @@ channelmix_f32_2_5p1_c(struct channelmix *mix, void * SPA_RESTRICT dst[],
d[0][n] = s[0][n] * v0;
d[1][n] = s[1][n] * v1;
d[2][n] = c;
d[4][n] = s[0][n] * v4;
d[5][n] = s[1][n] * v5;
}
lr4_process(&mix->lr4[3], d[3], d[2], v3, n_samples);
lr4_process(&mix->lr4[2], d[2], d[2], v2, n_samples);
delay_run(mix->buffer[0], &mix->pos[0], BUFFER_SIZE, mix->delay,
d[4], s[0], v4, n_samples);
delay_run(mix->buffer[1], &mix->pos[1], BUFFER_SIZE, mix->delay,
d[5], s[1], v5, n_samples);
}
}
@ -331,16 +339,20 @@ channelmix_f32_2_7p1_c(struct channelmix *mix, void * SPA_RESTRICT dst[],
for (i = 0; i < n_dst; i++)
memset(d[i], 0, n_samples * sizeof(float));
}
else if (v0 == 1.0f && v1 == 1.0f && v4 == 1.0f && v5 == 1.0f &&
v6 == 1.0f && v7 == 1.0f) {
else if (v0 == 1.0f && v1 == 1.0f && v4 == 1.0f && v5 == 1.0f) {
for (n = 0; n < n_samples; n++) {
float c = s[0][n] + s[1][n];
d[0][n] = d[4][n] = d[6][n] = s[0][n];
d[1][n] = d[5][n] = d[7][n] = s[1][n];
d[0][n] = d[4][n] = s[0][n];
d[1][n] = d[5][n] = s[1][n];
d[2][n] = c;
}
lr4_process(&mix->lr4[3], d[3], d[2], v3, n_samples);
lr4_process(&mix->lr4[2], d[2], d[2], v2, n_samples);
delay_run(mix->buffer[0], &mix->pos[0], BUFFER_SIZE, mix->delay,
d[6], s[0], v6, n_samples);
delay_run(mix->buffer[1], &mix->pos[1], BUFFER_SIZE, mix->delay,
d[7], s[1], v7, n_samples);
}
else {
for (n = 0; n < n_samples; n++) {
@ -350,11 +362,14 @@ channelmix_f32_2_7p1_c(struct channelmix *mix, void * SPA_RESTRICT dst[],
d[2][n] = c;
d[4][n] = s[0][n] * v4;
d[5][n] = s[1][n] * v5;
d[6][n] = s[0][n] * v6;
d[7][n] = s[1][n] * v7;
}
lr4_process(&mix->lr4[3], d[3], d[2], v3, n_samples);
lr4_process(&mix->lr4[2], d[2], d[2], v2, n_samples);
delay_run(mix->buffer[0], &mix->pos[0], BUFFER_SIZE, mix->delay,
d[6], s[0], v6, n_samples);
delay_run(mix->buffer[1], &mix->pos[1], BUFFER_SIZE, mix->delay,
d[7], s[1], v7, n_samples);
}
}

6
spa/plugins/audioconvert/channelmix-ops.c
View file

@ -544,11 +544,13 @@ int channelmix_init(struct channelmix *mix)
if (info == NULL)
return -ENOTSUP;
spa_log_debug(mix->log, "selected %s", info->name);
mix->free = impl_channelmix_free;
mix->process = info->process;
mix->set_volume = impl_channelmix_set_volume;
mix->cpu_flags = info->cpu_flags;
mix->delay = mix->rear_delay * mix->freq / 1000.0f;
spa_log_debug(mix->log, "selected %s delay:%d", info->name, mix->delay);
return make_matrix(mix);
}

7
spa/plugins/audioconvert/channelmix-ops.h
View file

@ -33,6 +33,7 @@
extern struct spa_log_topic *log_topic;
#include "crossover.h"
#include "delay.h"
#define VOLUME_MIN 0.0f
#define VOLUME_NORM 1.0f
@ -45,6 +46,7 @@ extern struct spa_log_topic *log_topic;
#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
struct channelmix {
uint32_t src_chan;
@ -69,8 +71,13 @@ struct channelmix {
float freq; /* sample frequency */
float lfe_cutoff; /* in Hz, 0 is disabled */
float rear_delay; /* in ms, 0 is disabled */
struct lr4 lr4[SPA_AUDIO_MAX_CHANNELS];
float buffer[2][BUFFER_SIZE];
uint32_t pos[2];
uint32_t delay;
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,

40
spa/plugins/audioconvert/channelmix.c
View file

@ -466,6 +466,14 @@ static int impl_node_enum_params(void *object, int seq,
SPA_PROP_INFO_container, SPA_POD_Id(SPA_TYPE_Array));
break;
case 8:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.disable"),
SPA_PROP_INFO_description, SPA_POD_String("Disable Channel mixing"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->disabled),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 9:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.normalize"),
@ -474,7 +482,7 @@ static int impl_node_enum_params(void *object, int seq,
SPA_FLAG_IS_SET(this->mix.options, CHANNELMIX_OPTION_NORMALIZE)),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 9:
case 10:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.mix-lfe"),
@ -483,7 +491,7 @@ static int impl_node_enum_params(void *object, int seq,
SPA_FLAG_IS_SET(this->mix.options, CHANNELMIX_OPTION_MIX_LFE)),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 10:
case 11:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.upmix"),
@ -492,21 +500,22 @@ static int impl_node_enum_params(void *object, int seq,
SPA_FLAG_IS_SET(this->mix.options, CHANNELMIX_OPTION_UPMIX)),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 11:
case 12:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.lfe-cutoff"),
SPA_PROP_INFO_description, SPA_POD_String("LFE cutoff frequency"),
SPA_PROP_INFO_description, SPA_POD_String("LFE cutoff frequency (Hz)"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(
this->mix.lfe_cutoff, 0.0, 1000.0),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
case 12:
case 13:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_name, SPA_POD_String("channelmix.disable"),
SPA_PROP_INFO_description, SPA_POD_String("Disable Channel mixing"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->disabled),
SPA_PROP_INFO_name, SPA_POD_String("channelmix.rear-delay"),
SPA_PROP_INFO_description, SPA_POD_String("Rear channels delay (ms)"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(
this->mix.rear_delay, 0.0, 1000.0),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
break;
default:
@ -547,6 +556,8 @@ static int impl_node_enum_params(void *object, int seq,
0);
spa_pod_builder_prop(&b, SPA_PROP_params, 0);
spa_pod_builder_push_struct(&b, &f[1]);
spa_pod_builder_string(&b, "channelmix.disable");
spa_pod_builder_bool(&b, this->props.disabled);
spa_pod_builder_string(&b, "channelmix.normalize");
spa_pod_builder_bool(&b, SPA_FLAG_IS_SET(this->mix.options,
CHANNELMIX_OPTION_NORMALIZE));
@ -558,8 +569,8 @@ static int impl_node_enum_params(void *object, int seq,
CHANNELMIX_OPTION_UPMIX));
spa_pod_builder_string(&b, "channelmix.lfe-cutoff");
spa_pod_builder_float(&b, this->mix.lfe_cutoff);
spa_pod_builder_string(&b, "channelmix.disable");
spa_pod_builder_bool(&b, this->props.disabled);
spa_pod_builder_string(&b, "channelmix.rear-delay");
spa_pod_builder_float(&b, this->mix.rear_delay);
spa_pod_builder_pop(&b, &f[1]);
param = spa_pod_builder_pop(&b, &f[0]);
break;
@ -585,7 +596,9 @@ static int impl_node_enum_params(void *object, int seq,
static int channelmix_set_param(struct impl *this, const char *k, const char *s)
{
if (spa_streq(k, "channelmix.normalize"))
if (spa_streq(k, "channelmix.disable"))
this->props.disabled = spa_atob(s);
else if (spa_streq(k, "channelmix.normalize"))
SPA_FLAG_UPDATE(this->mix.options, CHANNELMIX_OPTION_NORMALIZE, spa_atob(s));
else if (spa_streq(k, "channelmix.mix-lfe"))
SPA_FLAG_UPDATE(this->mix.options, CHANNELMIX_OPTION_MIX_LFE, spa_atob(s));
@ -593,8 +606,8 @@ static int channelmix_set_param(struct impl *this, const char *k, const char *s)
SPA_FLAG_UPDATE(this->mix.options, CHANNELMIX_OPTION_UPMIX, spa_atob(s));
else if (spa_streq(k, "channelmix.lfe-cutoff"))
spa_atof(s, &this->mix.lfe_cutoff);
else if (spa_streq(k, "channelmix.disable"))
this->props.disabled = spa_atob(s);
else if (spa_streq(k, "channelmix.rear-delay"))
spa_atof(s, &this->mix.rear_delay);
else
return 0;
return 1;
@ -1577,6 +1590,7 @@ impl_init(const struct spa_handle_factory *factory,
this->mix.options = CHANNELMIX_OPTION_NORMALIZE;
this->mix.log = this->log;
this->mix.rear_delay = 12.0f;
for (i = 0; info && i < info->n_items; i++) {
const char *k = info->items[i].key;

72
spa/plugins/audioconvert/delay.h Normal file
View file

@ -0,0 +1,72 @@
/* 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.
*/
#ifndef DELAY_H
#define DELAY_H
#ifdef __cplusplus
extern "C" {
#endif
static inline void delay_run(float *buffer, uint32_t *pos,
uint32_t n_buffer, uint32_t delay,
float *dst, const float *src, const float vol, uint32_t n_samples)
{
uint32_t i;
uint32_t p = *pos;
for (i = 0; i < n_samples; i++) {
buffer[p] = src[i];
dst[i] = buffer[(p - delay) & (n_buffer-1)] * vol;
p = (p + 1) & (n_buffer-1);
}
*pos = p;
}
static inline void delay_convolve_run(float *buffer, uint32_t *pos,
uint32_t n_buffer, uint32_t delay,
const float *taps, uint32_t n_taps,
float *dst, const float *src, const float vol, uint32_t n_samples)
{
uint32_t i, j;
uint32_t p = *pos;
for (i = 0; i < n_samples; i++) {
float sum = 0.0f;
buffer[p] = src[i];
for (j = 0; j < n_taps; j++)
sum += (taps[j] * buffer[((p - delay) - j) & (n_buffer-1)]);
dst[i] = sum * vol;
p = (p + 1) & (n_buffer-1);
}
*pos = p;
}
#ifdef __cplusplus
}
#endif
#endif /* DELAY_H */