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main/audio/processors/no_audio_processor.h

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+#ifndef DUMMY_AUDIO_PROCESSOR_H
+#define DUMMY_AUDIO_PROCESSOR_H
+
+#include <vector>
+#include <functional>
+
+#include "audio_processor.h"
+#include "audio_codec.h"
+
+class NoAudioProcessor : public AudioProcessor {
+public:
+    NoAudioProcessor() = default;
+    ~NoAudioProcessor() = default;
+
+    void Initialize(AudioCodec* codec, int frame_duration_ms, srmodel_list_t* models_list) override;
+    void Feed(std::vector<int16_t>&& data) override;
+    void Start() override;
+    void Stop() override;
+    bool IsRunning() override;
+    void OnOutput(std::function<void(std::vector<int16_t>&& data)> callback) override;
+    void OnVadStateChange(std::function<void(bool speaking)> callback) override;
+    size_t GetFeedSize() override;
+    void EnableDeviceAec(bool enable) override;
+
+private:
+    AudioCodec* codec_ = nullptr;
+    int frame_samples_ = 0;
+    std::function<void(std::vector<int16_t>&& data)> output_callback_;
+    std::function<void(bool speaking)> vad_state_change_callback_;
+    bool is_running_ = false;
+};
+
+#endif