plugin: add cava provider

1 files changed, 64 insertions, 0 deletions

diff --git a/plugin/src/Caelestia/cavaprovider.hpp b/plugin/src/Caelestia/cavaprovider.hpp
new file mode 100644
index 0000000..d819f54
--- /dev/null
+++ b/plugin/src/Caelestia/cavaprovider.hpp
@@ -0,0 +1,64 @@
+#pragma once
+
+#include "audioprovider.hpp"
+#include <QObject>
+#include <cava/cavacore.h>
+#include <qqmlintegration.h>
+
+namespace caelestia {
+
+class CavaProcessor : public AudioProcessor {
+    Q_OBJECT
+
+public:
+    explicit CavaProcessor(AudioProvider* provider, QObject* parent = nullptr);
+    ~CavaProcessor();
+
+signals:
+    void valuesChanged(QVector<double> values);
+
+private:
+    struct cava_plan* m_plan;
+    double* m_in;
+    double* m_out;
+
+    int m_bars;
+    QVector<double> m_values;
+
+    Q_INVOKABLE void setBars(int bars);
+
+    void reload();
+    void initCava();
+    void cleanup();
+
+    void processChunk(const QVector<double>& chunk) override;
+};
+
+class CavaProvider : public AudioProvider {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(int bars READ bars WRITE setBars NOTIFY barsChanged)
+
+    Q_PROPERTY(QVector<double> values READ values NOTIFY valuesChanged)
+
+public:
+    explicit CavaProvider(int sampleRate = 48000, int chunkSize = 512, QObject* parent = nullptr);
+
+    [[nodiscard]] int bars() const;
+    void setBars(int bars);
+
+    [[nodiscard]] QVector<double> values() const;
+
+signals:
+    void barsChanged();
+    void valuesChanged();
+
+private:
+    int m_bars;
+    QVector<double> m_values;
+
+    void updateValues(QVector<double> values);
+};
+
+} // namespace caelestia