Implemented equalizer

[someplayer] / src / player / player.cpp

diff --git a/src/player/player.cpp b/src/player/player.cpp
index 05d37cd..9395d8f 100644 (file)
--- a/src/player/player.cpp
+++ b/src/player/player.cpp
@@ -19,6 +19,11 @@
 
 #include "player.h"
 #include <phonon/MediaSource>
+#include <phonon/Effect>
+#include <phonon/BackendCapabilities>
+#include <phonon/EffectParameter>
+#include "../config.h"
+#include <QTime>
 
 using namespace SomePlayer::Playback;
 using namespace SomePlayer::DataObjects;
@@ -30,10 +35,30 @@ Player::Player(QObject *parent) :
        _player = new Phonon::MediaObject(this);
        _output = new Phonon::AudioOutput(Phonon::MusicCategory, this);
        _player->setTickInterval(1000);
+       _equalizer == NULL;
+       _equalizer_enabled == false;
+       QList<Phonon::EffectDescription> effects = Phonon::BackendCapabilities::availableAudioEffects();
+       foreach (Phonon::EffectDescription desc, effects) {
+               if (desc.name() == "equalizer-10bands") {
+                       _equalizer = new Phonon::Effect(desc, this);
+                       Config config;
+                       if (config.getValue("equalizer/equalizer").toString() == "enabled") {
+                               for (int i = 0; i < 10; i++) {
+                                       QVariant var = config.getValue(QString("equalizer/band%1").arg(i));
+                                       setEqualizerValue(i, var.toDouble());
+                               }
+                               _equalizer_enabled = true;
+                       } else if (config.getValue("equalizer/equalizer") == "") {
+                               for (int i = 0; i < 10; i++) {
+                                       config.setValue(QString("equalizer/band%1").arg(i), 0);
+                               }
+                       }
+               }
+       }
        connect(_player, SIGNAL(stateChanged(Phonon::State,Phonon::State)), this, SLOT(_stateChanged(Phonon::State,Phonon::State)));
        connect(_player, SIGNAL(tick(qint64)), this, SLOT(_tick(qint64)));
-       Phonon::createPath(_player, _output);
-       int seed = reinterpret_cast<int> (_player);
+       _path = Phonon::createPath(_player, _output);
+       int seed = QTime::currentTime().msec();
        qsrand(seed);
        _random = _config.getValue("playback/random").toBool();
        _repeat = _config.getValue("playback/repeat").toBool();
@@ -135,7 +160,6 @@ void Player::_stateChanged(Phonon::State newState, Phonon::State /*oldState*/) {
                break;
        case Phonon::ErrorState:
                _state = PLAYER_ERROR;
-               qDebug() << _player->errorString();
                break;
        }
 }
@@ -191,3 +215,39 @@ void Player::toggleRepeat() {
 void Player::setVolume(int v) {
        _output->setVolume(v*0.01);
 }
+
+void Player::equalizerValue(int band, double *val) {
+       if (band < 0 || band > 9) {
+               *val = -24;
+               return;
+       }
+       if (_equalizer_enabled) {
+               QList<Phonon::EffectParameter> plist = _equalizer->parameters();
+               QVariant var = _equalizer->parameterValue(plist[band]);
+               *val = var.toDouble();
+       }
+}
+
+void Player::enableEqualizer() {
+       _equalizer_enabled = true;
+       _path.insertEffect(_equalizer);
+       Config config;
+       config.setValue("equalizer/equalizer", "enabled");
+}
+
+void Player::disableEqualizer() {
+       _equalizer_enabled = false;
+       _path.removeEffect(_equalizer);
+       Config config;
+       config.setValue("equalizer/equalizer", "disabled");
+}
+
+void Player::setEqualizerValue(int band, double value) {
+       if (band < 0 || band > 9 || value < -24 || value > 12) {
+               return;
+       }
+       QList<Phonon::EffectParameter> plist = _equalizer->parameters();
+       _equalizer->setParameterValue(plist[band], QVariant::fromValue(value));
+       Config config;
+       config.setValue(QString("equalizer/band%1").arg(band), value);
+}