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spa/spa/plugins/audioconvert/merger.c

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/* Spa
*
* Copyright © 2018 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 <errno.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <spa/support/plugin.h>
#include <spa/support/cpu.h>
#include <spa/support/log.h>
#include <spa/utils/result.h>
#include <spa/utils/list.h>
#include <spa/utils/names.h>
#include <spa/utils/string.h>
#include <spa/node/node.h>
#include <spa/node/io.h>
#include <spa/node/utils.h>
#include <spa/node/keys.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/param.h>
#include <spa/pod/filter.h>
#include <spa/debug/types.h>
#include <spa/debug/pod.h>
#include "volume-ops.h"
#include "fmt-ops.h"
#define NAME "merger"
#define DEFAULT_RATE 48000
#define DEFAULT_CHANNELS 2
#define MAX_SAMPLES 8192
#define MAX_ALIGN 16
#define MAX_BUFFERS 32
#define MAX_DATAS SPA_AUDIO_MAX_CHANNELS
#define MAX_PORTS SPA_AUDIO_MAX_CHANNELS
#define DEFAULT_MUTE false
#define DEFAULT_VOLUME VOLUME_NORM
struct volumes {
bool mute;
uint32_t n_volumes;
float volumes[SPA_AUDIO_MAX_CHANNELS];
};
static void init_volumes(struct volumes *vol)
{
uint32_t i;
vol->mute = DEFAULT_MUTE;
vol->n_volumes = 0;
for (i = 0; i < SPA_AUDIO_MAX_CHANNELS; i++)
vol->volumes[i] = DEFAULT_VOLUME;
}
struct props {
float volume;
uint32_t n_channels;
uint32_t channel_map[SPA_AUDIO_MAX_CHANNELS];
struct volumes channel;
struct volumes soft;
struct volumes monitor;
};
static void props_reset(struct props *props)
{
uint32_t i;
props->volume = DEFAULT_VOLUME;
props->n_channels = 0;
for (i = 0; i < SPA_AUDIO_MAX_CHANNELS; i++)
props->channel_map[i] = SPA_AUDIO_CHANNEL_UNKNOWN;
init_volumes(&props->channel);
init_volumes(&props->soft);
init_volumes(&props->monitor);
}
struct buffer {
uint32_t id;
#define BUFFER_FLAG_QUEUED (1<<0)
uint32_t flags;
struct spa_list link;
struct spa_buffer *buf;
void *datas[MAX_DATAS];
};
struct port {
uint32_t direction;
uint32_t id;
struct spa_io_buffers *io;
uint64_t info_all;
struct spa_port_info info;
struct spa_param_info params[8];
char position[16];
struct spa_audio_info format;
uint32_t blocks;
uint32_t stride;
struct buffer buffers[MAX_BUFFERS];
uint32_t n_buffers;
struct spa_list queue;
unsigned int have_format:1;
};
struct impl {
struct spa_handle handle;
struct spa_node node;
struct spa_log *log;
struct spa_cpu *cpu;
struct spa_io_position *io_position;
uint64_t info_all;
struct spa_node_info info;
struct spa_param_info params[8];
struct spa_hook_list hooks;
uint32_t port_count;
uint32_t monitor_count;
struct port in_ports[MAX_PORTS];
struct port out_ports[MAX_PORTS + 1];
struct spa_audio_info format;
unsigned int have_profile:1;
struct convert conv;
uint32_t cpu_flags;
unsigned int is_passthrough:1;
unsigned int started:1;
unsigned int monitor:1;
unsigned int monitor_channel_volumes:1;
struct volume volume;
struct props props;
uint32_t src_remap[SPA_AUDIO_MAX_CHANNELS];
uint32_t dst_remap[SPA_AUDIO_MAX_CHANNELS];
float empty[MAX_SAMPLES + MAX_ALIGN];
};
#define CHECK_IN_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) < this->port_count)
#define CHECK_OUT_PORT(this,d,p) ((d) == SPA_DIRECTION_OUTPUT && (p) <= this->monitor_count)
#define CHECK_PORT(this,d,p) (CHECK_OUT_PORT(this,d,p) || CHECK_IN_PORT (this,d,p))
#define GET_IN_PORT(this,p) (&this->in_ports[p])
#define GET_OUT_PORT(this,p) (&this->out_ports[p])
#define GET_PORT(this,d,p) (d == SPA_DIRECTION_INPUT ? GET_IN_PORT(this,p) : GET_OUT_PORT(this,p))
#define PORT_IS_DSP(d,p) (p != 0 || d != SPA_DIRECTION_OUTPUT)
static void emit_node_info(struct impl *this, bool full)
{
if (full)
this->info.change_mask = this->info_all;
if (this->info.change_mask) {
spa_node_emit_info(&this->hooks, &this->info);
this->info.change_mask = 0;
}
}
static void emit_port_info(struct impl *this, struct port *port, bool full)
{
if (full)
port->info.change_mask = port->info_all;
if (port->info.change_mask) {
struct spa_dict_item items[3];
uint32_t n_items = 0;
if (PORT_IS_DSP(port->direction, port->id)) {
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_FORMAT_DSP, "32 bit float mono audio");
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_AUDIO_CHANNEL, port->position);
if (port->direction == SPA_DIRECTION_OUTPUT)
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_MONITOR, "true");
}
port->info.props = &SPA_DICT_INIT(items, n_items);
spa_node_emit_port_info(&this->hooks, port->direction, port->id, &port->info);
port->info.change_mask = 0;
}
}
static int init_port(struct impl *this, enum spa_direction direction, uint32_t port_id,
uint32_t position)
{
struct port *port = GET_PORT(this, direction, port_id);
port->direction = direction;
port->id = port_id;
if (position < SPA_N_ELEMENTS(spa_type_audio_channel)) {
snprintf(port->position, sizeof(port->position), "%s",
spa_debug_type_short_name(spa_type_audio_channel[position].name));
} else if (position >= SPA_AUDIO_CHANNEL_CUSTOM_START) {
snprintf(port->position, sizeof(port->position), "AUX%d",
position - SPA_AUDIO_CHANNEL_CUSTOM_START);
} else {
snprintf(port->position, sizeof(port->position), "UNK");
}
port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
SPA_PORT_CHANGE_MASK_PROPS |
SPA_PORT_CHANGE_MASK_PARAMS;
port->info = SPA_PORT_INFO_INIT();
port->info.flags = SPA_PORT_FLAG_NO_REF |
SPA_PORT_FLAG_DYNAMIC_DATA;
port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
port->info.params = port->params;
port->info.n_params = 5;
port->n_buffers = 0;
port->have_format = false;
port->format.media_type = SPA_MEDIA_TYPE_audio;
port->format.media_subtype = SPA_MEDIA_SUBTYPE_dsp;
port->format.info.dsp.format = SPA_AUDIO_FORMAT_DSP_F32;
spa_list_init(&port->queue);
spa_log_debug(this->log, NAME " %p: add port %d:%d position:%s",
this, direction, port_id, port->position);
emit_port_info(this, port, true);
return 0;
}
static int impl_node_enum_params(void *object, int seq,
uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
struct impl *this = object;
struct spa_pod *param;
struct spa_pod_builder b = { 0 };
uint8_t buffer[1024];
struct spa_result_node_params result;
uint32_t count = 0;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(num != 0, -EINVAL);
result.id = id;
result.next = start;
next:
result.index = result.next++;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
switch (id) {
case SPA_PARAM_PortConfig:
return -ENOTSUP;
case SPA_PARAM_PropInfo:
{
struct props *p = &this->props;
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_volume),
SPA_PROP_INFO_name, SPA_POD_String("Volume"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0));
break;
case 1:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_mute),
SPA_PROP_INFO_name, SPA_POD_String("Mute"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->channel.mute));
break;
case 2:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_channelVolumes),
SPA_PROP_INFO_name, SPA_POD_String("Channel Volumes"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0),
SPA_PROP_INFO_container, SPA_POD_Id(SPA_TYPE_Array));
break;
case 3:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_channelMap),
SPA_PROP_INFO_name, SPA_POD_String("Channel Map"),
SPA_PROP_INFO_type, SPA_POD_Id(SPA_AUDIO_CHANNEL_UNKNOWN),
SPA_PROP_INFO_container, SPA_POD_Id(SPA_TYPE_Array));
break;
case 4:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_monitorMute),
SPA_PROP_INFO_name, SPA_POD_String("Monitor Mute"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->monitor.mute));
break;
case 5:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_monitorVolumes),
SPA_PROP_INFO_name, SPA_POD_String("Monitor Volumes"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0),
SPA_PROP_INFO_container, SPA_POD_Id(SPA_TYPE_Array));
break;
case 6:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_softMute),
SPA_PROP_INFO_name, SPA_POD_String("Soft Mute"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool(p->soft.mute));
break;
case 7:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_softVolumes),
SPA_PROP_INFO_name, SPA_POD_String("Soft Volumes"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float(p->volume, 0.0, 10.0),
SPA_PROP_INFO_container, SPA_POD_Id(SPA_TYPE_Array));
break;
default:
return 0;
}
break;
}
case SPA_PARAM_Props:
{
struct props *p = &this->props;
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_Props, id,
SPA_PROP_volume, SPA_POD_Float(p->volume),
SPA_PROP_mute, SPA_POD_Bool(p->channel.mute),
SPA_PROP_channelVolumes, SPA_POD_Array(sizeof(float),
SPA_TYPE_Float,
p->channel.n_volumes,
p->channel.volumes),
SPA_PROP_channelMap, SPA_POD_Array(sizeof(uint32_t),
SPA_TYPE_Id,
p->n_channels,
p->channel_map),
SPA_PROP_softMute, SPA_POD_Bool(p->soft.mute),
SPA_PROP_softVolumes, SPA_POD_Array(sizeof(float),
SPA_TYPE_Float,
p->soft.n_volumes,
p->soft.volumes),
SPA_PROP_monitorMute, SPA_POD_Bool(p->monitor.mute),
SPA_PROP_monitorVolumes, SPA_POD_Array(sizeof(float),
SPA_TYPE_Float,
p->monitor.n_volumes,
p->monitor.volumes));
break;
default:
return 0;
}
break;
}
default:
return 0;
}
if (spa_pod_filter(&b, &result.param, param, filter) < 0)
goto next;
spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
if (++count != num)
goto next;
return 0;
}
static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
{
struct impl *this = object;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_log_debug(this->log, NAME " %p: io %d %p/%zd", this, id, data, size);
switch (id) {
case SPA_IO_Position:
this->io_position = data;
break;
default:
return -ENOENT;
}
return 0;
}
static int apply_props(struct impl *this, const struct spa_pod *param)
{
struct spa_pod_prop *prop;
struct spa_pod_object *obj = (struct spa_pod_object *) param;
struct props *p = &this->props;
int changed = 0;
SPA_POD_OBJECT_FOREACH(obj, prop) {
switch (prop->key) {
case SPA_PROP_volume:
if (spa_pod_get_float(&prop->value, &p->volume) == 0)
changed++;
break;
case SPA_PROP_mute:
if (spa_pod_get_bool(&prop->value, &p->channel.mute) == 0)
changed++;
break;
case SPA_PROP_channelVolumes:
if ((p->channel.n_volumes = spa_pod_copy_array(&prop->value, SPA_TYPE_Float,
p->channel.volumes, SPA_AUDIO_MAX_CHANNELS)) > 0)
changed++;
break;
case SPA_PROP_channelMap:
if ((p->n_channels = spa_pod_copy_array(&prop->value, SPA_TYPE_Id,
p->channel_map, SPA_AUDIO_MAX_CHANNELS)) > 0)
changed++;
break;
case SPA_PROP_softMute:
if (spa_pod_get_bool(&prop->value, &p->soft.mute) == 0)
changed++;
break;
case SPA_PROP_softVolumes:
if ((p->soft.n_volumes = spa_pod_copy_array(&prop->value, SPA_TYPE_Float,
p->soft.volumes, SPA_AUDIO_MAX_CHANNELS)) > 0)
changed++;
break;
case SPA_PROP_monitorMute:
if (spa_pod_get_bool(&prop->value, &p->monitor.mute) == 0)
changed++;
break;
case SPA_PROP_monitorVolumes:
if ((p->monitor.n_volumes = spa_pod_copy_array(&prop->value, SPA_TYPE_Float,
p->monitor.volumes, SPA_AUDIO_MAX_CHANNELS)) > 0)
changed++;
break;
default:
break;
}
}
return changed;
}
static int int32_cmp(const void *v1, const void *v2)
{
int32_t a1 = *(int32_t*)v1;
int32_t a2 = *(int32_t*)v2;
if (a1 == 0 && a2 != 0)
return 1;
if (a2 == 0 && a1 != 0)
return -1;
return a1 - a2;
}
static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *this = object;
int res;
spa_return_val_if_fail(this != NULL, -EINVAL);
switch (id) {
case SPA_PARAM_PortConfig:
{
struct spa_audio_info info = { 0, };
struct port *port;
struct spa_pod *format;
enum spa_direction direction;
enum spa_param_port_config_mode mode;
bool monitor = false;
uint32_t i;
if (spa_pod_parse_object(param,
SPA_TYPE_OBJECT_ParamPortConfig, NULL,
SPA_PARAM_PORT_CONFIG_direction, SPA_POD_Id(&direction),
SPA_PARAM_PORT_CONFIG_mode, SPA_POD_Id(&mode),
SPA_PARAM_PORT_CONFIG_monitor, SPA_POD_OPT_Bool(&monitor),
SPA_PARAM_PORT_CONFIG_format, SPA_POD_Pod(&format)) < 0)
return -EINVAL;
if (!spa_pod_is_object_type(format, SPA_TYPE_OBJECT_Format))
return -EINVAL;
if (mode != SPA_PARAM_PORT_CONFIG_MODE_dsp)
return -ENOTSUP;
if (direction != SPA_DIRECTION_INPUT)
return -EINVAL;
if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0)
return res;
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
return -EINVAL;
if (spa_format_audio_raw_parse(format, &info.info.raw) < 0)
return -EINVAL;
if (this->have_profile && memcmp(&this->format, &info, sizeof(info)) == 0)
return 0;
spa_log_debug(this->log, NAME " %p: port config %d/%d %d", this,
info.info.raw.rate, info.info.raw.channels, monitor);
for (i = 0; i < this->port_count; i++) {
spa_node_emit_port_info(&this->hooks,
SPA_DIRECTION_INPUT, i, NULL);
if (this->monitor)
spa_node_emit_port_info(&this->hooks,
SPA_DIRECTION_OUTPUT, i+1, NULL);
}
this->monitor = monitor;
this->format = info;
this->have_profile = true;
this->port_count = info.info.raw.channels;
this->monitor_count = this->monitor ? this->port_count : 0;
for (i = 0; i < this->port_count; i++)
this->props.channel_map[i] = info.info.raw.position[i];
this->props.channel.n_volumes = this->port_count;
this->props.monitor.n_volumes = this->port_count;
this->props.soft.n_volumes = this->port_count;
this->props.n_channels = this->port_count;
for (i = 0; i < this->port_count; i++) {
init_port(this, SPA_DIRECTION_INPUT, i, info.info.raw.position[i]);
if (this->monitor)
init_port(this, SPA_DIRECTION_OUTPUT, i+1,
info.info.raw.position[i]);
}
port = GET_OUT_PORT(this, 0);
qsort(info.info.raw.position, info.info.raw.channels,
sizeof(uint32_t), int32_cmp);
port->format = info;
port->have_format = true;
this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
this->params[2].flags ^= SPA_PARAM_INFO_SERIAL;
emit_node_info(this, false);
return 0;
}
case SPA_PARAM_Props:
if (apply_props(this, param) > 0) {
this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
this->params[2].flags ^= SPA_PARAM_INFO_SERIAL;
emit_node_info(this, false);
}
break;
default:
return -ENOENT;
}
return 0;
}
static int impl_node_send_command(void *object, const struct spa_command *command)
{
struct impl *this = object;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(command != NULL, -EINVAL);
switch (SPA_NODE_COMMAND_ID(command)) {
case SPA_NODE_COMMAND_Start:
this->started = true;
break;
case SPA_NODE_COMMAND_Suspend:
case SPA_NODE_COMMAND_Flush:
case SPA_NODE_COMMAND_Pause:
this->started = false;
break;
default:
return -ENOTSUP;
}
return 0;
}
static int
impl_node_add_listener(void *object,
struct spa_hook *listener,
const struct spa_node_events *events,
void *data)
{
struct impl *this = object;
uint32_t i;
struct spa_hook_list save;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_log_trace(this->log, NAME" %p: add listener %p", this, listener);
spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
emit_node_info(this, true);
emit_port_info(this, GET_OUT_PORT(this, 0), true);
for (i = 0; i < this->port_count; i++) {
emit_port_info(this, GET_IN_PORT(this, i), true);
if (this->monitor)
emit_port_info(this, GET_OUT_PORT(this, i+1), true);
}
spa_hook_list_join(&this->hooks, &save);
return 0;
}
static int
impl_node_set_callbacks(void *object,
const struct spa_node_callbacks *callbacks,
void *user_data)
{
return 0;
}
static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id,
const struct spa_dict *props)
{
return -ENOTSUP;
}
static int
impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id)
{
return -ENOTSUP;
}
static int port_enum_formats(void *object,
enum spa_direction direction, uint32_t port_id,
uint32_t index,
struct spa_pod **param,
struct spa_pod_builder *builder)
{
struct impl *this = object;
struct port *port = GET_PORT(this, direction, port_id);
switch (index) {
case 0:
if (PORT_IS_DSP(direction, port_id)) {
*param = spa_format_audio_dsp_build(builder,
SPA_PARAM_EnumFormat, &port->format.info.dsp);
} else if (port->have_format) {
*param = spa_format_audio_raw_build(builder,
SPA_PARAM_EnumFormat, &port->format.info.raw);
}
else {
*param = spa_pod_builder_add_object(builder,
SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
SPA_FORMAT_AUDIO_format, SPA_POD_CHOICE_ENUM_Id(16,
SPA_AUDIO_FORMAT_F32P,
SPA_AUDIO_FORMAT_F32P,
SPA_AUDIO_FORMAT_F32,
SPA_AUDIO_FORMAT_S32P,
SPA_AUDIO_FORMAT_S32,
SPA_AUDIO_FORMAT_S24_32P,
SPA_AUDIO_FORMAT_S24_32,
SPA_AUDIO_FORMAT_S24P,
SPA_AUDIO_FORMAT_S24,
SPA_AUDIO_FORMAT_S24_OE,
SPA_AUDIO_FORMAT_S16P,
SPA_AUDIO_FORMAT_S16,
SPA_AUDIO_FORMAT_S8P,
SPA_AUDIO_FORMAT_S8,
SPA_AUDIO_FORMAT_U8,
SPA_AUDIO_FORMAT_U8P),
SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(
DEFAULT_RATE, 1, INT32_MAX),
SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(
DEFAULT_CHANNELS, 1, MAX_PORTS));
}
break;
default:
return 0;
}
return 1;
}
static int
impl_node_port_enum_params(void *object, int seq,
enum spa_direction direction, uint32_t port_id,
uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
struct impl *this = object;
struct port *port;
struct spa_pod *param;
struct spa_pod_builder b = { 0 };
uint8_t buffer[1024];
struct spa_result_node_params result;
uint32_t count = 0;
int res;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(num != 0, -EINVAL);
spa_log_debug(this->log, "%p: enum params port %d.%d %d %u",
this, direction, port_id, seq, id);
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
port = GET_PORT(this, direction, port_id);
result.id = id;
result.next = start;
next:
result.index = result.next++;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
switch (id) {
case SPA_PARAM_EnumFormat:
if ((res = port_enum_formats(object, direction, port_id, result.index, &param, &b)) <= 0)
return res;
break;
case SPA_PARAM_Format:
if (!port->have_format)
return -EIO;
if (result.index > 0)
return 0;
if (PORT_IS_DSP(direction, port_id))
param = spa_format_audio_dsp_build(&b, id, &port->format.info.dsp);
else
param = spa_format_audio_raw_build(&b, id, &port->format.info.raw);
break;
case SPA_PARAM_Buffers:
if (!port->have_format)
return -EIO;
if (result.index > 0)
return 0;
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamBuffers, id,
SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(1, 1, MAX_BUFFERS),
SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(port->blocks),
SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int(
MAX_SAMPLES * port->stride,
16 * port->stride,
INT32_MAX),
SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->stride),
SPA_PARAM_BUFFERS_align, SPA_POD_Int(16));
break;
case SPA_PARAM_Meta:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamMeta, id,
SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header)));
break;
default:
return 0;
}
break;
case SPA_PARAM_IO:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamIO, id,
SPA_PARAM_IO_id, SPA_POD_Id(SPA_IO_Buffers),
SPA_PARAM_IO_size, SPA_POD_Int(sizeof(struct spa_io_buffers)));
break;
default:
return 0;
}
break;
default:
return -ENOENT;
}
if (spa_pod_filter(&b, &result.param, param, filter) < 0)
goto next;
spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
if (++count != num)
goto next;
return 0;
}
static int clear_buffers(struct impl *this, struct port *port)
{
if (port->n_buffers > 0) {
spa_log_debug(this->log, NAME " %p: clear buffers %p", this, port);
port->n_buffers = 0;
spa_list_init(&port->queue);
}
return 0;
}
static int setup_convert(struct impl *this)
{
struct port *outport;
struct spa_audio_info informat, outformat;
uint32_t i, j, src_fmt, dst_fmt;
int res;
outport = GET_OUT_PORT(this, 0);
informat = this->format;
outformat = outport->format;
src_fmt = SPA_AUDIO_FORMAT_DSP_F32;
dst_fmt = outformat.info.raw.format;
spa_log_info(this->log, NAME " %p: %s/%d@%dx%d->%s/%d@%d", this,
spa_debug_type_find_name(spa_type_audio_format, src_fmt),
1,
informat.info.raw.rate,
informat.info.raw.channels,
spa_debug_type_find_name(spa_type_audio_format, dst_fmt),
outformat.info.raw.channels,
outformat.info.raw.rate);
for (i = 0; i < informat.info.raw.channels; i++) {
for (j = 0; j < outformat.info.raw.channels; j++) {
if (informat.info.raw.position[i] !=
outformat.info.raw.position[j])
continue;
this->src_remap[j] = i;
this->dst_remap[i] = j;
spa_log_debug(this->log, NAME " %p: channel %d -> %d (%s -> %s)", this,
i, j,
spa_debug_type_find_short_name(spa_type_audio_channel,
informat.info.raw.position[i]),
spa_debug_type_find_short_name(spa_type_audio_channel,
outformat.info.raw.position[j]));
outformat.info.raw.position[j] = -1;
break;
}
}
this->conv.src_fmt = src_fmt;
this->conv.dst_fmt = dst_fmt;
this->conv.n_channels = outformat.info.raw.channels;
this->conv.cpu_flags = this->cpu_flags;
if ((res = convert_init(&this->conv)) < 0)
return res;
this->is_passthrough = this->conv.is_passthrough;
spa_log_debug(this->log, NAME " %p: got converter features %08x:%08x passthrough:%d", this,
this->cpu_flags, this->conv.cpu_flags, this->is_passthrough);
return 0;
}
static int calc_width(struct spa_audio_info *info)
{
switch (info->info.raw.format) {
case SPA_AUDIO_FORMAT_U8:
case SPA_AUDIO_FORMAT_S8:
return 1;
case SPA_AUDIO_FORMAT_S16:
case SPA_AUDIO_FORMAT_S16_OE:
return 2;
case SPA_AUDIO_FORMAT_S24:
case SPA_AUDIO_FORMAT_S24_OE:
return 3;
default:
return 4;
}
}
static int port_set_format(void *object,
enum spa_direction direction,
uint32_t port_id,
uint32_t flags,
const struct spa_pod *format)
{
struct impl *this = object;
struct port *port;
int res;
port = GET_PORT(this, direction, port_id);
spa_log_debug(this->log, NAME " %p: set format", this);
if (format == NULL) {
if (port->have_format) {
if (PORT_IS_DSP(direction, port_id))
port->have_format = false;
else
port->have_format = this->have_profile;
clear_buffers(this, port);
}
} else {
struct spa_audio_info info = { 0 };
if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) {
spa_log_error(this->log, "can't parse format %s", spa_strerror(res));
return res;
}
if (PORT_IS_DSP(direction, port_id)) {
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_dsp) {
spa_log_error(this->log, "unexpected types %d/%d",
info.media_type, info.media_subtype);
return -EINVAL;
}
if ((res = spa_format_audio_dsp_parse(format, &info.info.dsp)) < 0) {
spa_log_error(this->log, "can't parse format %s", spa_strerror(res));
return res;
}
if (info.info.dsp.format != SPA_AUDIO_FORMAT_DSP_F32) {
spa_log_error(this->log, "unexpected format %d<->%d",
info.info.dsp.format, SPA_AUDIO_FORMAT_DSP_F32);
return -EINVAL;
}
port->blocks = 1;
port->stride = 4;
}
else {
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw) {
spa_log_error(this->log, "unexpected types %d/%d",
info.media_type, info.media_subtype);
return -EINVAL;
}
if ((res = spa_format_audio_raw_parse(format, &info.info.raw)) < 0) {
spa_log_error(this->log, "can't parse format %s", spa_strerror(res));
return res;
}
if (info.info.raw.channels != this->port_count) {
spa_log_error(this->log, "unexpected channels %d<->%d",
info.info.raw.channels, this->port_count);
return -EINVAL;
}
port->stride = calc_width(&info);
if (SPA_AUDIO_FORMAT_IS_PLANAR(info.info.raw.format)) {
port->blocks = info.info.raw.channels;
}
else {
port->stride *= info.info.raw.channels;
port->blocks = 1;
}
}
port->format = info;
spa_log_debug(this->log, NAME " %p: %d %d %d", this,
port_id, port->stride, port->blocks);
if (!PORT_IS_DSP(direction, port_id))
if ((res = setup_convert(this)) < 0)
return res;
port->have_format = true;
}
port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS;
if (port->have_format) {
port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE);
port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ);
} else {
port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
}
emit_port_info(this, port, false);
return 0;
}
static int
impl_node_port_set_param(void *object,
enum spa_direction direction, uint32_t port_id,
uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *this = object;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
switch (id) {
case SPA_PARAM_Format:
return port_set_format(this, direction, port_id, flags, param);
default:
return -ENOENT;
}
}
static void queue_buffer(struct impl *this, struct port *port, uint32_t id)
{
struct buffer *b = &port->buffers[id];
spa_log_trace_fp(this->log, NAME " %p: queue buffer %d on port %d %d",
this, id, port->id, b->flags);
if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_QUEUED))
return;
spa_list_append(&port->queue, &b->link);
SPA_FLAG_SET(b->flags, BUFFER_FLAG_QUEUED);
}
static struct buffer *dequeue_buffer(struct impl *this, struct port *port)
{
struct buffer *b;
if (spa_list_is_empty(&port->queue))
return NULL;
b = spa_list_first(&port->queue, struct buffer, link);
spa_list_remove(&b->link);
SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_QUEUED);
spa_log_trace_fp(this->log, NAME " %p: dequeue buffer %d on port %d %u",
this, b->id, port->id, b->flags);
return b;
}
static int
impl_node_port_use_buffers(void *object,
enum spa_direction direction,
uint32_t port_id,
uint32_t flags,
struct spa_buffer **buffers,
uint32_t n_buffers)
{
struct impl *this = object;
struct port *port;
uint32_t i, j;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
port = GET_PORT(this, direction, port_id);
spa_return_val_if_fail(port->have_format, -EIO);
spa_log_debug(this->log, NAME " %p: use buffers %d on port %d:%d",
this, n_buffers, direction, port_id);
clear_buffers(this, port);
for (i = 0; i < n_buffers; i++) {
struct buffer *b;
uint32_t n_datas = buffers[i]->n_datas;
struct spa_data *d = buffers[i]->datas;
b = &port->buffers[i];
b->id = i;
b->flags = 0;
b->buf = buffers[i];
if (n_datas != port->blocks) {
spa_log_error(this->log, NAME " %p: invalid blocks %d on buffer %d",
this, n_datas, i);
return -EINVAL;
}
for (j = 0; j < n_datas; j++) {
if (d[j].data == NULL) {
spa_log_error(this->log, NAME " %p: invalid memory %d on buffer %d %d %p",
this, j, i, d[j].type, d[j].data);
return -EINVAL;
}
if (!SPA_IS_ALIGNED(d[j].data, MAX_ALIGN)) {
spa_log_warn(this->log, NAME " %p: memory %d on buffer %d not aligned",
this, j, i);
}
b->datas[j] = d[j].data;
if (direction == SPA_DIRECTION_OUTPUT &&
!SPA_FLAG_IS_SET(d[j].flags, SPA_DATA_FLAG_DYNAMIC))
this->is_passthrough = false;
}
if (direction == SPA_DIRECTION_OUTPUT)
queue_buffer(this, port, i);
}
port->n_buffers = n_buffers;
return 0;
}
static int
impl_node_port_set_io(void *object,
enum spa_direction direction, uint32_t port_id,
uint32_t id, void *data, size_t size)
{
struct impl *this = object;
struct port *port;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_log_debug(this->log, NAME " %p: set io %d on port %d:%d %p",
this, id, direction, port_id, data);
spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL);
port = GET_PORT(this, direction, port_id);
switch (id) {
case SPA_IO_Buffers:
port->io = data;
break;
default:
return -ENOENT;
}
return 0;
}
static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id)
{
struct impl *this = object;
struct port *port;
spa_return_val_if_fail(this != NULL, -EINVAL);
spa_return_val_if_fail(CHECK_PORT(this, SPA_DIRECTION_OUTPUT, port_id), -EINVAL);
port = GET_OUT_PORT(this, port_id);
queue_buffer(this, port, buffer_id);
return 0;
}
static inline int get_in_buffer(struct impl *this, struct port *port, struct buffer **buf)
{
struct spa_io_buffers *io;
if ((io = port->io) == NULL) {
spa_log_trace_fp(this->log, NAME " %p: no io on port %d",
this, port->id);
return -EIO;
}
if (io->status != SPA_STATUS_HAVE_DATA ||
io->buffer_id >= port->n_buffers) {
spa_log_trace_fp(this->log, NAME " %p: empty port %d %p %d %d %d",
this, port->id, io, io->status, io->buffer_id,
port->n_buffers);
return -EPIPE;
}
*buf = &port->buffers[io->buffer_id];
io->status = SPA_STATUS_NEED_DATA;
return 0;
}
static inline int get_out_buffer(struct impl *this, struct port *port, struct buffer **buf)
{
struct spa_io_buffers *io;
if (SPA_UNLIKELY((io = port->io) == NULL ||
io->status == SPA_STATUS_HAVE_DATA))
return SPA_STATUS_HAVE_DATA;
if (SPA_LIKELY(io->buffer_id < port->n_buffers))
queue_buffer(this, port, io->buffer_id);
if (SPA_UNLIKELY((*buf = dequeue_buffer(this, port)) == NULL))
return -EPIPE;
io->status = SPA_STATUS_HAVE_DATA;
io->buffer_id = (*buf)->id;
return 0;
}
static inline int handle_monitor(struct impl *this, const void *data, float volume, int n_samples, struct port *outport)
{
struct buffer *dbuf;
struct spa_data *dd;
int res, size;
if (SPA_UNLIKELY((res = get_out_buffer(this, outport, &dbuf)) != 0))
return res;
dd = &dbuf->buf->datas[0];
size = SPA_MIN(dd->maxsize, n_samples * outport->stride);
dd->chunk->offset = 0;
dd->chunk->size = size;
spa_log_trace(this->log, "%p: io %p %08x", this, outport->io, dd->flags);
if (SPA_FLAG_IS_SET(dd->flags, SPA_DATA_FLAG_DYNAMIC) && volume == VOLUME_NORM)
dd->data = (void*)data;
else
volume_process(&this->volume, dd->data, data, volume, size / outport->stride);
return res;
}
static int impl_node_process(void *object)
{
struct impl *this = object;
struct port *outport;
struct spa_io_buffers *outio;
uint32_t i, maxsize, n_samples;
struct spa_data *sd, *dd;
struct buffer *sbuf, *dbuf;
uint32_t n_src_datas, n_dst_datas;
const void **src_datas;
void **dst_datas;
int res;
spa_return_val_if_fail(this != NULL, -EINVAL);
outport = GET_OUT_PORT(this, 0);
outio = outport->io;
spa_return_val_if_fail(outio != NULL, -EIO);
spa_return_val_if_fail(this->conv.process != NULL, -EIO);
spa_log_trace_fp(this->log, NAME " %p: status %p %d %d", this,
outio, outio->status, outio->buffer_id);
if (SPA_UNLIKELY((res = get_out_buffer(this, outport, &dbuf)) != 0))
return res;
dd = &dbuf->buf->datas[0];
maxsize = dd->maxsize;
if (SPA_LIKELY(this->io_position))
n_samples = this->io_position->clock.duration;
else
n_samples = maxsize / outport->stride;
n_dst_datas = dbuf->buf->n_datas;
dst_datas = alloca(sizeof(void*) * n_dst_datas);
n_src_datas = this->port_count;
src_datas = alloca(sizeof(void*) * this->port_count);
/* produce more output if possible */
for (i = 0; i < n_src_datas; i++) {
struct port *inport = GET_IN_PORT(this, i);
if (SPA_UNLIKELY(get_in_buffer(this, inport, &sbuf) < 0)) {
src_datas[i] = SPA_PTR_ALIGN(this->empty, MAX_ALIGN, void);
continue;
}
sd = &sbuf->buf->datas[0];
src_datas[i] = SPA_PTROFF(sd->data, sd->chunk->offset, void);
n_samples = SPA_MIN(n_samples, sd->chunk->size / inport->stride);
spa_log_trace_fp(this->log, NAME " %p: %d %d %d %p", this,
sd->chunk->size, maxsize, n_samples, src_datas[i]);
}
for (i = 0; i < this->monitor_count; i++) {
float volume;
volume = this->props.monitor.mute ? 0.0f : this->props.monitor.volumes[i];
if (this->monitor_channel_volumes)
volume *= this->props.channel.mute ? 0.0f : this->props.channel.volumes[i];
handle_monitor(this, src_datas[i], volume, n_samples,
GET_OUT_PORT(this, i + 1));
}
for (i = 0; i < n_dst_datas; i++) {
uint32_t dst_remap = this->dst_remap[i];
uint32_t src_remap = this->src_remap[i];
struct spa_data *dd = dbuf->buf->datas;
if (this->is_passthrough)
dd[i].data = (void *)src_datas[src_remap];
else
dst_datas[dst_remap] = dd[i].data = dbuf->datas[i];
dd[i].chunk->offset = 0;
dd[i].chunk->size = n_samples * outport->stride;
}
spa_log_trace_fp(this->log, NAME " %p: n_src:%d n_dst:%d n_samples:%d max:%d p:%d", this,
n_src_datas, n_dst_datas, n_samples, maxsize, this->is_passthrough);
if (!this->is_passthrough)
convert_process(&this->conv, dst_datas, src_datas, n_samples);
return SPA_STATUS_NEED_DATA | SPA_STATUS_HAVE_DATA;
}
static const struct spa_node_methods impl_node = {
SPA_VERSION_NODE_METHODS,
.add_listener = impl_node_add_listener,
.set_callbacks = impl_node_set_callbacks,
.enum_params = impl_node_enum_params,
.set_param = impl_node_set_param,
.set_io = impl_node_set_io,
.send_command = impl_node_send_command,
.add_port = impl_node_add_port,
.remove_port = impl_node_remove_port,
.port_enum_params = impl_node_port_enum_params,
.port_set_param = impl_node_port_set_param,
.port_use_buffers = impl_node_port_use_buffers,
.port_set_io = impl_node_port_set_io,
.port_reuse_buffer = impl_node_port_reuse_buffer,
.process = impl_node_process,
};
static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
{
struct impl *this;
spa_return_val_if_fail(handle != NULL, -EINVAL);
spa_return_val_if_fail(interface != NULL, -EINVAL);
this = (struct impl *) handle;
if (spa_streq(type, SPA_TYPE_INTERFACE_Node))
*interface = &this->node;
else
return -ENOENT;
return 0;
}
static int impl_clear(struct spa_handle *handle)
{
return 0;
}
static size_t
impl_get_size(const struct spa_handle_factory *factory,
const struct spa_dict *params)
{
return sizeof(struct impl);
}
static int
impl_init(const struct spa_handle_factory *factory,
struct spa_handle *handle,
const struct spa_dict *info,
const struct spa_support *support,
uint32_t n_support)
{
struct impl *this;
struct port *port;
const char *str;
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(handle != NULL, -EINVAL);
handle->get_interface = impl_get_interface;
handle->clear = impl_clear;
this = (struct impl *) handle;
this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
this->cpu = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_CPU);
if (this->cpu)
this->cpu_flags = spa_cpu_get_flags(this->cpu);
this->monitor_channel_volumes = false;
if (info) {
if ((str = spa_dict_lookup(info, "monitor.channel-volumes")) != NULL)
this->monitor_channel_volumes = spa_atob(str);
}
this->node.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_Node,
SPA_VERSION_NODE,
&impl_node, this);
spa_hook_list_init(&this->hooks);
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
SPA_NODE_CHANGE_MASK_PARAMS;
this->info = SPA_NODE_INFO_INIT();
this->info.max_input_ports = MAX_PORTS;
this->info.max_output_ports = MAX_PORTS+1;
this->info.flags = SPA_NODE_FLAG_RT |
SPA_NODE_FLAG_IN_PORT_CONFIG;
this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PortConfig, SPA_PARAM_INFO_WRITE);
this->params[1] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
this->params[2] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
this->info.params = this->params;
this->info.n_params = 3;
port = GET_OUT_PORT(this, 0);
port->direction = SPA_DIRECTION_OUTPUT;
port->id = 0;
port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
SPA_PORT_CHANGE_MASK_PARAMS;
port->info = SPA_PORT_INFO_INIT();
port->info.flags = SPA_PORT_FLAG_DYNAMIC_DATA;
port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ);
port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ);
port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0);
port->info.params = port->params;
port->info.n_params = 5;
spa_list_init(&port->queue);
this->volume.cpu_flags = this->cpu_flags;
volume_init(&this->volume);
props_reset(&this->props);
return 0;
}
static const struct spa_interface_info impl_interfaces[] = {
{SPA_TYPE_INTERFACE_Node,},
};
static int
impl_enum_interface_info(const struct spa_handle_factory *factory,
const struct spa_interface_info **info,
uint32_t *index)
{
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(info != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
switch (*index) {
case 0:
*info = &impl_interfaces[*index];
break;
default:
return 0;
}
(*index)++;
return 1;
}
const struct spa_handle_factory spa_merger_factory = {
SPA_VERSION_HANDLE_FACTORY,
SPA_NAME_AUDIO_PROCESS_INTERLEAVE,
NULL,
impl_get_size,
impl_init,
impl_enum_interface_info,
};
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