plugin/ap: fix collector

Actually read from speakers not mic

1 files changed, 76 insertions, 0 deletions

diff --git a/plugin/src/Caelestia/audiocollector.hpp b/plugin/src/Caelestia/audiocollector.hpp
new file mode 100644
index 0000000..3db294f
--- /dev/null
+++ b/plugin/src/Caelestia/audiocollector.hpp
@@ -0,0 +1,76 @@
+#pragma once
+
+#include "service.hpp"
+#include <QObject>
+#include <cstdint>
+#include <mutex>
+#include <pipewire/pipewire.h>
+#include <spa/param/audio/format-utils.h>
+#include <stop_token>
+#include <thread>
+#include <vector>
+
+namespace caelestia {
+
+class AudioCollector;
+
+class PipeWireWorker {
+public:
+    explicit PipeWireWorker(std::stop_token token, AudioCollector* collector);
+
+    void run();
+
+private:
+    pw_main_loop* m_loop;
+    pw_stream* m_stream;
+    spa_source* m_timer;
+
+    std::stop_token m_token;
+    AudioCollector* m_collector;
+
+    void cleanup();
+
+    static void handleTimeout(void* data, uint64_t expirations);
+    void processStream();
+    void processSamples(const int16_t* samples, uint32_t count);
+
+    [[nodiscard]] unsigned int nextPowerOf2(unsigned int n);
+};
+
+class AudioCollector : public Service {
+    Q_OBJECT
+
+public:
+    explicit AudioCollector(
+        uint32_t sampleRate = 44100, uint32_t chunkSize = 512, uint32_t bufferSize = 1024, QObject* parent = nullptr);
+    ~AudioCollector();
+
+    static AudioCollector* instance();
+
+    [[nodiscard]] uint32_t sampleRate() const;
+    [[nodiscard]] uint32_t chunkSize() const;
+    [[nodiscard]] uint32_t bufferSize() const;
+
+    void loadChunk(const int16_t* samples, uint32_t count);
+    uint32_t readChunk(float* out, uint32_t count = 0);
+    uint32_t readChunk(double* out, uint32_t count = 0);
+
+private:
+    inline static AudioCollector* s_instance = nullptr;
+    inline static std::mutex s_mutex;
+
+    std::jthread m_thread;
+    std::vector<float> m_buffer;
+    uint32_t m_bufferIndex;
+    bool m_bufferFull;
+    std::mutex m_bufferMutex;
+
+    const uint32_t m_sampleRate;
+    const uint32_t m_chunkSize;
+    const uint32_t m_bufferSize;
+
+    void start() override;
+    void stop() override;
+};
+
+} // namespace caelestia