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Cava back/front end transformation

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This commit is contained in:
Viktar Lukashonak
2025-09-26 23:34:11 +03:00
parent cbab9c9713
commit 76d3b47ffd
8 changed files with 381 additions and 273 deletions
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59
include/modules/cava.hpp
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@ -1,59 +0,0 @@
#pragma once
#include "ALabel.hpp"
#include "util/sleeper_thread.hpp"
namespace cava {
extern "C" {
// Need sdl_glsl output feature to be enabled on libcava
#ifndef SDL_GLSL
#define SDL_GLSL
#endif
#include <cava/common.h>
#ifdef SDL_GLSL
#undef SDL_GLSL
#endif
}
} // namespace cava
namespace waybar::modules {
using namespace std::literals::chrono_literals;
class Cava final : public ALabel {
public:
Cava(const std::string&, const Json::Value&);
virtual ~Cava();
auto update() -> void override;
auto doAction(const std::string& name) -> void override;
private:
util::SleeperThread thread_;
util::SleeperThread thread_fetch_input_;
struct cava::error_s error_{}; // cava errors
struct cava::config_params prm_{}; // cava parameters
struct cava::audio_raw audio_raw_{}; // cava handled raw audio data(is based on audio_data)
struct cava::audio_data audio_data_{}; // cava audio data
struct cava::cava_plan* plan_; //{new cava_plan{}};
// Cava API to read audio source
cava::ptr input_source_;
// Delay to handle audio source
std::chrono::milliseconds frame_time_milsec_{1s};
// Text to display
std::string text_{""};
int rePaint_{1};
std::chrono::seconds fetch_input_delay_{4};
std::chrono::seconds suspend_silence_delay_{0};
bool silence_{false};
bool hide_on_silence_{false};
std::string format_silent_{""};
int sleep_counter_{0};
// Cava method
void pause_resume();
// ModuleActionMap
static inline std::map<const std::string, void (waybar::modules::Cava::* const)()> actionMap_{
{"mode", &waybar::modules::Cava::pause_resume}};
};
} // namespace waybar::modules

30
include/modules/cava/cava.hpp Normal file
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@ -0,0 +1,30 @@
#pragma once
#include "ALabel.hpp"
#include "cava_backend.hpp"
namespace waybar::modules::cava {
class Cava final : public ALabel, public sigc::trackable {
public:
Cava(const std::string&, const Json::Value&);
~Cava() = default;
auto onUpdate(const std::string& input) -> void;
auto onSilence() -> void;
auto doAction(const std::string& name) -> void override;
private:
std::shared_ptr<CavaBackend> backend_;
// Text to display
std::string label_text_{""};
bool hide_on_silence_{false};
std::string format_silent_{""};
int ascii_range_{0};
bool silence_{false};
// Cava method
void pause_resume();
// ModuleActionMap
static inline std::map<const std::string, void (waybar::modules::cava::Cava::* const)()>
actionMap_{{"mode", &waybar::modules::cava::Cava::pause_resume}};
};
} // namespace waybar::modules::cava

74
include/modules/cava/cava_backend.hpp Normal file
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@ -0,0 +1,74 @@
#pragma once
#include <json/json.h>
#include <sigc++/sigc++.h>
#include "util/sleeper_thread.hpp"
namespace cava {
extern "C" {
// Need sdl_glsl output feature to be enabled on libcava
#ifndef SDL_GLSL
#define SDL_GLSL
#endif
#include <cava/common.h>
#ifdef SDL_GLSL
#undef SDL_GLSL
#endif
}
} // namespace cava
namespace waybar::modules::cava {
using namespace std::literals::chrono_literals;
class CavaBackend final {
public:
static std::shared_ptr<CavaBackend> inst(const Json::Value& config);
virtual ~CavaBackend();
// Methods
int getAsciiRange();
void doPauseResume();
void Update();
// Signal accessor
using type_signal_update = sigc::signal<void(const std::string&)>;
type_signal_update signal_update();
using type_signal_silence = sigc::signal<void()>;
type_signal_silence signal_silence();
private:
CavaBackend(const Json::Value& config);
util::SleeperThread thread_;
util::SleeperThread read_thread_;
// Cava API to read audio source
::cava::ptr input_source_;
struct ::cava::error_s error_{}; // cava errors
struct ::cava::config_params prm_{}; // cava parameters
struct ::cava::audio_raw audio_raw_{}; // cava handled raw audio data(is based on audio_data)
struct ::cava::audio_data audio_data_{}; // cava audio data
struct ::cava::cava_plan* plan_; //{new cava_plan{}};
std::chrono::seconds fetch_input_delay_{4};
// Delay to handle audio source
std::chrono::milliseconds frame_time_milsec_{1s};
int re_paint_{0};
bool silence_{false};
bool silence_prev_{false};
std::chrono::seconds suspend_silence_delay_{0};
int sleep_counter_{0};
std::string output_{};
// Methods
void invoke();
void execute();
bool isSilence();
void doUpdate(bool force = false);
// Signal
type_signal_update m_signal_update_;
type_signal_silence m_signal_silence_;
};
} // namespace waybar::modules::cava

2
meson.build
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@ -505,7 +505,7 @@ cava = dependency('cava',
if cava.found()
add_project_arguments('-DHAVE_LIBCAVA', language: 'cpp')
src_files += files('src/modules/cava.cpp')
src_files += files('src/modules/cava/cava.cpp', 'src/modules/cava/cava_backend.cpp')
man_files += files('man/waybar-cava.5.scd')
endif

4
src/factory.cpp
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@ -109,7 +109,7 @@
#include "modules/wireplumber.hpp"
#endif
#ifdef HAVE_LIBCAVA
#include "modules/cava.hpp"
#include "modules/cava/cava.hpp"
#endif
#ifdef HAVE_SYSTEMD_MONITOR
#include "modules/systemd_failed_units.hpp"
@ -343,7 +343,7 @@ waybar::AModule* waybar::Factory::makeModule(const std::string& name,
#endif
#ifdef HAVE_LIBCAVA
if (ref == "cava") {
return new waybar::modules::Cava(id, config_[name]);
return new waybar::modules::cava::Cava(id, config_[name]);
}
#endif
#ifdef HAVE_SYSTEMD_MONITOR

211
src/modules/cava.cpp
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@ -1,211 +0,0 @@
#include "modules/cava.hpp"
#include <spdlog/spdlog.h>
waybar::modules::Cava::Cava(const std::string& id, const Json::Value& config)
: ALabel(config, "cava", id, "{}", 60, false, false, false) {
// Load waybar module config
char cfgPath[PATH_MAX];
cfgPath[0] = '\0';
if (config_["cava_config"].isString()) strcpy(cfgPath, config_["cava_config"].asString().data());
// Load cava config
error_.length = 0;
if (!load_config(cfgPath, &prm_, false, &error_)) {
spdlog::error("Error loading config. {0}", error_.message);
exit(EXIT_FAILURE);
}
// Override cava parameters by the user config
prm_.inAtty = 0;
prm_.output = cava::output_method::OUTPUT_RAW;
strcpy(prm_.data_format, "ascii");
strcpy(prm_.raw_target, "/dev/stdout");
prm_.ascii_range = config_["format-icons"].size() - 1;
prm_.bar_width = 2;
prm_.bar_spacing = 0;
prm_.bar_height = 32;
prm_.bar_width = 1;
prm_.orientation = cava::ORIENT_TOP;
prm_.xaxis = cava::xaxis_scale::NONE;
prm_.mono_opt = cava::AVERAGE;
prm_.autobars = 0;
prm_.gravity = 0;
prm_.integral = 1;
if (config_["framerate"].isInt()) prm_.framerate = config_["framerate"].asInt();
if (config_["autosens"].isInt()) prm_.autosens = config_["autosens"].asInt();
if (config_["sensitivity"].isInt()) prm_.sens = config_["sensitivity"].asInt();
if (config_["bars"].isInt()) prm_.fixedbars = config_["bars"].asInt();
if (config_["lower_cutoff_freq"].isNumeric())
prm_.lower_cut_off = config_["lower_cutoff_freq"].asLargestInt();
if (config_["higher_cutoff_freq"].isNumeric())
prm_.upper_cut_off = config_["higher_cutoff_freq"].asLargestInt();
if (config_["sleep_timer"].isInt()) prm_.sleep_timer = config_["sleep_timer"].asInt();
if (config_["method"].isString())
prm_.input = cava::input_method_by_name(config_["method"].asString().c_str());
if (config_["source"].isString()) prm_.audio_source = config_["source"].asString().data();
if (config_["sample_rate"].isNumeric()) prm_.samplerate = config_["sample_rate"].asLargestInt();
if (config_["sample_bits"].isInt()) prm_.samplebits = config_["sample_bits"].asInt();
if (config_["stereo"].isBool()) prm_.stereo = config_["stereo"].asBool();
if (config_["reverse"].isBool()) prm_.reverse = config_["reverse"].asBool();
if (config_["bar_delimiter"].isInt()) prm_.bar_delim = config_["bar_delimiter"].asInt();
if (config_["monstercat"].isBool()) prm_.monstercat = config_["monstercat"].asBool();
if (config_["waves"].isBool()) prm_.waves = config_["waves"].asBool();
if (config_["noise_reduction"].isDouble())
prm_.noise_reduction = config_["noise_reduction"].asDouble();
if (config_["input_delay"].isInt())
fetch_input_delay_ = std::chrono::seconds(config_["input_delay"].asInt());
if (config_["hide_on_silence"].isBool()) hide_on_silence_ = config_["hide_on_silence"].asBool();
if (config_["format_silent"].isString()) format_silent_ = config_["format_silent"].asString();
// Make cava parameters configuration
plan_ = new cava::cava_plan{};
audio_raw_.height = prm_.ascii_range;
audio_data_.format = -1;
audio_data_.source = new char[1 + strlen(prm_.audio_source)];
audio_data_.source[0] = '\0';
strcpy(audio_data_.source, prm_.audio_source);
audio_data_.rate = 0;
audio_data_.samples_counter = 0;
audio_data_.channels = 2;
audio_data_.IEEE_FLOAT = 0;
audio_data_.input_buffer_size = BUFFER_SIZE * audio_data_.channels;
audio_data_.cava_buffer_size = audio_data_.input_buffer_size * 8;
audio_data_.cava_in = new double[audio_data_.cava_buffer_size]{0.0};
audio_data_.terminate = 0;
audio_data_.suspendFlag = false;
input_source_ = get_input(&audio_data_, &prm_);
if (!input_source_) {
spdlog::error("cava API didn't provide input audio source method");
exit(EXIT_FAILURE);
}
// Calculate delay for Update() thread
frame_time_milsec_ = std::chrono::milliseconds((int)(1e3 / prm_.framerate));
// Init cava plan, audio_raw structure
audio_raw_init(&audio_data_, &audio_raw_, &prm_, plan_);
if (!plan_) spdlog::error("cava plan is not provided");
audio_raw_.previous_frame[0] = -1; // For first Update() call need to rePaint text message
// Read audio source trough cava API. Cava orginizes this process via infinity loop
thread_fetch_input_ = [this] {
thread_fetch_input_.sleep_for(fetch_input_delay_);
input_source_(&audio_data_);
};
thread_ = [this] {
dp.emit();
thread_.sleep_for(frame_time_milsec_);
};
}
waybar::modules::Cava::~Cava() {
thread_fetch_input_.stop();
thread_.stop();
delete plan_;
plan_ = nullptr;
}
void upThreadDelay(std::chrono::milliseconds& delay, std::chrono::seconds& delta) {
if (delta == std::chrono::seconds{0}) {
delta += std::chrono::seconds{1};
delay += delta;
}
}
void downThreadDelay(std::chrono::milliseconds& delay, std::chrono::seconds& delta) {
if (delta > std::chrono::seconds{0}) {
delay -= delta;
delta -= std::chrono::seconds{1};
}
}
auto waybar::modules::Cava::update() -> void {
if (audio_data_.suspendFlag) return;
silence_ = true;
for (int i{0}; i < audio_data_.input_buffer_size; ++i) {
if (audio_data_.cava_in[i]) {
silence_ = false;
sleep_counter_ = 0;
break;
}
}
if (silence_ && prm_.sleep_timer != 0) {
if (sleep_counter_ <=
(int)(std::chrono::milliseconds(prm_.sleep_timer * 1s) / frame_time_milsec_)) {
++sleep_counter_;
silence_ = false;
}
}
if (!silence_ || prm_.sleep_timer == 0) {
downThreadDelay(frame_time_milsec_, suspend_silence_delay_);
// Process: execute cava
pthread_mutex_lock(&audio_data_.lock);
cava::cava_execute(audio_data_.cava_in, audio_data_.samples_counter, audio_raw_.cava_out,
plan_);
if (audio_data_.samples_counter > 0) audio_data_.samples_counter = 0;
pthread_mutex_unlock(&audio_data_.lock);
// Do transformation under raw data
audio_raw_fetch(&audio_raw_, &prm_, &rePaint_, plan_);
if (rePaint_ == 1) {
text_.clear();
for (int i{0}; i < audio_raw_.number_of_bars; ++i) {
audio_raw_.previous_frame[i] = audio_raw_.bars[i];
text_.append(
getIcon((audio_raw_.bars[i] > prm_.ascii_range) ? prm_.ascii_range : audio_raw_.bars[i],
"", prm_.ascii_range + 1));
if (prm_.bar_delim != 0) text_.push_back(prm_.bar_delim);
}
label_.set_markup(text_);
label_.show();
ALabel::update();
label_.get_style_context()->add_class("updated");
}
label_.get_style_context()->remove_class("silent");
} else {
upThreadDelay(frame_time_milsec_, suspend_silence_delay_);
if (hide_on_silence_)
label_.hide();
else if (config_["format_silent"].isString())
label_.set_markup(format_silent_);
label_.get_style_context()->add_class("silent");
label_.get_style_context()->remove_class("updated");
}
}
auto waybar::modules::Cava::doAction(const std::string& name) -> void {
if ((actionMap_[name])) {
(this->*actionMap_[name])();
} else
spdlog::error("Cava. Unsupported action \"{0}\"", name);
}
// Cava actions
void waybar::modules::Cava::pause_resume() {
pthread_mutex_lock(&audio_data_.lock);
if (audio_data_.suspendFlag) {
audio_data_.suspendFlag = false;
pthread_cond_broadcast(&audio_data_.resumeCond);
downThreadDelay(frame_time_milsec_, suspend_silence_delay_);
} else {
audio_data_.suspendFlag = true;
upThreadDelay(frame_time_milsec_, suspend_silence_delay_);
}
pthread_mutex_unlock(&audio_data_.lock);
}

51
src/modules/cava/cava.cpp Normal file
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@ -0,0 +1,51 @@
#include "modules/cava/cava.hpp"
#include <spdlog/spdlog.h>
waybar::modules::cava::Cava::Cava(const std::string& id, const Json::Value& config)
: ALabel(config, "cava", id, "{}", 60, false, false, false),
backend_{waybar::modules::cava::CavaBackend::inst(config)} {
if (config_["hide_on_silence"].isBool()) hide_on_silence_ = config_["hide_on_silence"].asBool();
if (config_["format_silent"].isString()) format_silent_ = config_["format_silent"].asString();
ascii_range_ = backend_->getAsciiRange();
backend_->signal_update().connect(sigc::mem_fun(*this, &Cava::onUpdate));
backend_->signal_silence().connect(sigc::mem_fun(*this, &Cava::onSilence));
backend_->Update();
}
auto waybar::modules::cava::Cava::doAction(const std::string& name) -> void {
if ((actionMap_[name])) {
(this->*actionMap_[name])();
} else
spdlog::error("Cava. Unsupported action \"{0}\"", name);
}
// Cava actions
void waybar::modules::cava::Cava::pause_resume() { backend_->doPauseResume(); }
auto waybar::modules::cava::Cava::onUpdate(const std::string& input) -> void {
if (silence_) {
label_.get_style_context()->remove_class("silent");
label_.get_style_context()->add_class("updated");
}
label_text_.clear();
for (auto& ch : input)
label_text_.append(getIcon((ch > ascii_range_) ? ascii_range_ : ch, "", ascii_range_ + 1));
label_.set_markup(label_text_);
label_.show();
ALabel::update();
silence_ = false;
}
auto waybar::modules::cava::Cava::onSilence() -> void {
if (!silence_) {
label_.get_style_context()->remove_class("updated");
if (hide_on_silence_)
label_.hide();
else if (config_["format_silent"].isString())
label_.set_markup(format_silent_);
silence_ = true;
label_.get_style_context()->add_class("silent");
}
}

223
src/modules/cava/cava_backend.cpp Normal file
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@ -0,0 +1,223 @@
#include "modules/cava/cava_backend.hpp"
#include <spdlog/spdlog.h>
std::shared_ptr<waybar::modules::cava::CavaBackend> waybar::modules::cava::CavaBackend::inst(
const Json::Value& config) {
static auto* backend = new CavaBackend(config);
static std::shared_ptr<CavaBackend> backend_ptr{backend};
return backend_ptr;
}
waybar::modules::cava::CavaBackend::CavaBackend(const Json::Value& config) {
// Load waybar module config
char cfgPath[PATH_MAX];
cfgPath[0] = '\0';
if (config["cava_config"].isString()) strcpy(cfgPath, config["cava_config"].asString().data());
// Load cava config
error_.length = 0;
if (!load_config(cfgPath, &prm_, false, &error_)) {
spdlog::error("cava backend. Error loading config. {0}", error_.message);
exit(EXIT_FAILURE);
}
// Override cava parameters by the user config
prm_.inAtty = 0;
prm_.output = ::cava::output_method::OUTPUT_RAW;
strcpy(prm_.data_format, "ascii");
strcpy(prm_.raw_target, "/dev/stdout");
prm_.ascii_range = config["format-icons"].size() - 1;
prm_.bar_width = 2;
prm_.bar_spacing = 0;
prm_.bar_height = 32;
prm_.bar_width = 1;
prm_.orientation = ::cava::ORIENT_TOP;
prm_.xaxis = ::cava::xaxis_scale::NONE;
prm_.mono_opt = ::cava::AVERAGE;
prm_.autobars = 0;
prm_.gravity = 0;
prm_.integral = 1;
if (config["framerate"].isInt()) prm_.framerate = config["framerate"].asInt();
// Calculate delay for Update() thread
frame_time_milsec_ = std::chrono::milliseconds((int)(1e3 / prm_.framerate));
if (config["autosens"].isInt()) prm_.autosens = config["autosens"].asInt();
if (config["sensitivity"].isInt()) prm_.sens = config["sensitivity"].asInt();
if (config["bars"].isInt()) prm_.fixedbars = config["bars"].asInt();
if (config["lower_cutoff_freq"].isNumeric())
prm_.lower_cut_off = config["lower_cutoff_freq"].asLargestInt();
if (config["higher_cutoff_freq"].isNumeric())
prm_.upper_cut_off = config["higher_cutoff_freq"].asLargestInt();
if (config["sleep_timer"].isInt()) prm_.sleep_timer = config["sleep_timer"].asInt();
if (config["method"].isString())
prm_.input = ::cava::input_method_by_name(config["method"].asString().c_str());
if (config["source"].isString()) prm_.audio_source = config["source"].asString().data();
if (config["sample_rate"].isNumeric()) prm_.samplerate = config["sample_rate"].asLargestInt();
if (config["sample_bits"].isInt()) prm_.samplebits = config["sample_bits"].asInt();
if (config["stereo"].isBool()) prm_.stereo = config["stereo"].asBool();
if (config["reverse"].isBool()) prm_.reverse = config["reverse"].asBool();
if (config["bar_delimiter"].isInt()) prm_.bar_delim = config["bar_delimiter"].asInt();
if (config["monstercat"].isBool()) prm_.monstercat = config["monstercat"].asBool();
if (config["waves"].isBool()) prm_.waves = config["waves"].asBool();
if (config["noise_reduction"].isDouble())
prm_.noise_reduction = config["noise_reduction"].asDouble();
if (config["input_delay"].isInt())
fetch_input_delay_ = std::chrono::seconds(config["input_delay"].asInt());
// Make cava parameters configuration
plan_ = new ::cava::cava_plan{};
audio_raw_.height = prm_.ascii_range;
audio_data_.format = -1;
audio_data_.source = new char[1 + strlen(prm_.audio_source)];
audio_data_.source[0] = '\0';
strcpy(audio_data_.source, prm_.audio_source);
audio_data_.rate = 0;
audio_data_.samples_counter = 0;
audio_data_.channels = 2;
audio_data_.IEEE_FLOAT = 0;
audio_data_.input_buffer_size = BUFFER_SIZE * audio_data_.channels;
audio_data_.cava_buffer_size = audio_data_.input_buffer_size * 8;
audio_data_.cava_in = new double[audio_data_.cava_buffer_size]{0.0};
audio_data_.terminate = 0;
audio_data_.suspendFlag = false;
input_source_ = get_input(&audio_data_, &prm_);
if (!input_source_) {
spdlog::error("cava backend API didn't provide input audio source method");
exit(EXIT_FAILURE);
}
// Init cava plan, audio_raw structure
audio_raw_init(&audio_data_, &audio_raw_, &prm_, plan_);
if (!plan_) spdlog::error("cava backend plan is not provided");
audio_raw_.previous_frame[0] = -1; // For first Update() call need to rePaint text message
// Read audio source trough cava API. Cava orginizes this process via infinity loop
read_thread_ = [this] {
try {
input_source_(&audio_data_);
} catch (const std::runtime_error& e) {
spdlog::warn("Cava backend. Read source error: {0}", e.what());
}
read_thread_.sleep_for(fetch_input_delay_);
};
thread_ = [this] {
doUpdate();
thread_.sleep_for(frame_time_milsec_);
};
}
waybar::modules::cava::CavaBackend::~CavaBackend() {
thread_.stop();
read_thread_.stop();
delete plan_;
plan_ = nullptr;
}
static void upThreadDelay(std::chrono::milliseconds& delay, std::chrono::seconds& delta) {
if (delta == std::chrono::seconds{0}) {
delta += std::chrono::seconds{1};
delay += delta;
}
}
static void downThreadDelay(std::chrono::milliseconds& delay, std::chrono::seconds& delta) {
if (delta > std::chrono::seconds{0}) {
delay -= delta;
delta -= std::chrono::seconds{1};
}
}
bool waybar::modules::cava::CavaBackend::isSilence() {
for (int i{0}; i < audio_data_.input_buffer_size; ++i) {
if (audio_data_.cava_in[i]) {
return false;
}
}
return true;
}
int waybar::modules::cava::CavaBackend::getAsciiRange() { return prm_.ascii_range; }
// Process: execute cava
void waybar::modules::cava::CavaBackend::invoke() {
pthread_mutex_lock(&audio_data_.lock);
::cava::cava_execute(audio_data_.cava_in, audio_data_.samples_counter, audio_raw_.cava_out,
plan_);
if (audio_data_.samples_counter > 0) audio_data_.samples_counter = 0;
pthread_mutex_unlock(&audio_data_.lock);
}
// Do transformation under raw data
void waybar::modules::cava::CavaBackend::execute() {
invoke();
audio_raw_fetch(&audio_raw_, &prm_, &re_paint_, plan_);
if (re_paint_ == 1) {
output_.clear();
for (int i{0}; i < audio_raw_.number_of_bars; ++i) {
audio_raw_.previous_frame[i] = audio_raw_.bars[i];
output_.push_back(audio_raw_.bars[i]);
if (prm_.bar_delim != 0) output_.push_back(prm_.bar_delim);
}
}
}
void waybar::modules::cava::CavaBackend::doPauseResume() {
pthread_mutex_lock(&audio_data_.lock);
if (audio_data_.suspendFlag) {
audio_data_.suspendFlag = false;
pthread_cond_broadcast(&audio_data_.resumeCond);
downThreadDelay(frame_time_milsec_, suspend_silence_delay_);
} else {
audio_data_.suspendFlag = true;
upThreadDelay(frame_time_milsec_, suspend_silence_delay_);
}
pthread_mutex_unlock(&audio_data_.lock);
}
waybar::modules::cava::CavaBackend::type_signal_update
waybar::modules::cava::CavaBackend::signal_update() {
return m_signal_update_;
}
waybar::modules::cava::CavaBackend::type_signal_silence
waybar::modules::cava::CavaBackend::signal_silence() {
return m_signal_silence_;
}
void waybar::modules::cava::CavaBackend::Update() { doUpdate(true); }
void waybar::modules::cava::CavaBackend::doUpdate(bool force) {
if (audio_data_.suspendFlag && !force) return;
silence_ = isSilence();
if (!silence_) sleep_counter_ = 0;
if (silence_ && prm_.sleep_timer != 0) {
if (sleep_counter_ <=
(int)(std::chrono::milliseconds(prm_.sleep_timer * 1s) / frame_time_milsec_)) {
++sleep_counter_;
silence_ = false;
}
}
if (!silence_ || prm_.sleep_timer == 0) {
downThreadDelay(frame_time_milsec_, suspend_silence_delay_);
execute();
if (re_paint_ == 1 || force) m_signal_update_.emit(output_);
} else {
upThreadDelay(frame_time_milsec_, suspend_silence_delay_);
if (silence_ != silence_prev_ || force) m_signal_silence_.emit();
}
silence_prev_ = silence_;
}