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/*
* Copyright © 2017-2020 Wellington Wallace
*
* This file is part of PulseEffects.
*
* PulseEffects is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PulseEffects is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PulseEffects. If not, see <https://www.gnu.org/licenses/>.
*/
#include "exciter.hpp"
#include <glibmm/main.h>
#include "util.hpp"
namespace {
void on_post_messages_changed(GSettings* settings, gchar* key, Exciter* l) {
const auto post = g_settings_get_boolean(settings, key);
if (post) {
if (!l->harmonics_connection.connected()) {
l->harmonics_connection = Glib::signal_timeout().connect(
[l]() {
float harmonics = 0.0F;
g_object_get(l->exciter, "meter-drive", &harmonics, nullptr);
l->harmonics.emit(harmonics);
return true;
},
100);
}
} else {
l->harmonics_connection.disconnect();
}
}
} // namespace
Exciter::Exciter(const std::string& tag, const std::string& schema, const std::string& schema_path)
: PluginBase(tag, "exciter", schema, schema_path) {
exciter = gst_element_factory_make("calf-sourceforge-net-plugins-Exciter", nullptr);
if (is_installed(exciter)) {
auto* in_level = gst_element_factory_make("level", "exciter_input_level");
auto* out_level = gst_element_factory_make("level", "exciter_output_level");
auto* audioconvert_in = gst_element_factory_make("audioconvert", "exciter_audioconvert_in");
auto* audioconvert_out = gst_element_factory_make("audioconvert", "exciter_audioconvert_out");
gst_bin_add_many(GST_BIN(bin), in_level, audioconvert_in, exciter, audioconvert_out, out_level, nullptr);
gst_element_link_many(in_level, audioconvert_in, exciter, audioconvert_out, out_level, nullptr);
auto* pad_sink = gst_element_get_static_pad(in_level, "sink");
auto* pad_src = gst_element_get_static_pad(out_level, "src");
gst_element_add_pad(bin, gst_ghost_pad_new("sink", pad_sink));
gst_element_add_pad(bin, gst_ghost_pad_new("src", pad_src));
gst_object_unref(GST_OBJECT(pad_sink));
gst_object_unref(GST_OBJECT(pad_src));
g_object_set(exciter, "bypass", 0, nullptr);
bind_to_gsettings();
g_signal_connect(settings, "changed::post-messages", G_CALLBACK(on_post_messages_changed), this);
g_settings_bind(settings, "post-messages", in_level, "post-messages", G_SETTINGS_BIND_DEFAULT);
g_settings_bind(settings, "post-messages", out_level, "post-messages", G_SETTINGS_BIND_DEFAULT);
// useless write just to force callback call
auto enable = g_settings_get_boolean(settings, "state");
g_settings_set_boolean(settings, "state", enable);
}
}
Exciter::~Exciter() {
util::debug(log_tag + name + " destroyed");
}
void Exciter::bind_to_gsettings() {
g_settings_bind_with_mapping(settings, "input-gain", exciter, "level-in", G_SETTINGS_BIND_DEFAULT,
util::db20_gain_to_linear, util::linear_gain_to_db20, nullptr, nullptr);
g_settings_bind_with_mapping(settings, "output-gain", exciter, "level-out", G_SETTINGS_BIND_DEFAULT,
util::db20_gain_to_linear, util::linear_gain_to_db20, nullptr, nullptr);
g_settings_bind_with_mapping(settings, "amount", exciter, "amount", G_SETTINGS_BIND_DEFAULT,
util::db20_gain_to_linear, util::linear_gain_to_db20, nullptr, nullptr);
g_settings_bind_with_mapping(settings, "harmonics", exciter, "drive", G_SETTINGS_BIND_GET, util::double_to_float,
nullptr, nullptr, nullptr);
g_settings_bind_with_mapping(settings, "scope", exciter, "freq", G_SETTINGS_BIND_GET, util::double_to_float, nullptr,
nullptr, nullptr);
g_settings_bind_with_mapping(settings, "ceil", exciter, "ceil", G_SETTINGS_BIND_GET, util::double_to_float, nullptr,
nullptr, nullptr);
g_settings_bind_with_mapping(settings, "blend", exciter, "blend", G_SETTINGS_BIND_GET, util::double_to_float, nullptr,
nullptr, nullptr);
g_settings_bind(settings, "ceil-active", exciter, "ceil-active", G_SETTINGS_BIND_DEFAULT);
g_settings_bind(settings, "listen", exciter, "listen", G_SETTINGS_BIND_DEFAULT);
}
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