AudioMain.hpp

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#pragma once
 
#include "EyeAICore/audio/DepthAudioSourceData.hpp"
#include "EyeAICore/audio/ObjectAudioSourceData.hpp"
#include "EyeAICore/audio/SpatialAudioSettings.hpp"
#include <AL/al.h>
#include <AL/alc.h>
#include <atomic>
#include <deque>
#include <mutex>
#include <vector>
 
/*
AudioMain handles the audio playback:
- managing the playback of the
  depth estimation data
- managing the playback of the objects
  recognized by the object detection
Once these loops start, continues playback
is ensured
*/
 
class AudioMain {
  public:
    explicit AudioMain(const SpatialAudioSettings& audio_settings);
    ~AudioMain();
 
    // Functions for playing depth estimation data
    void startDepthAudioLoop(std::atomic<bool>& running);
    void changeDepthAudioData(
        std::vector<DepthAudioSourceData> new_audio_source_data
    );
 
    // Functions for playing object detection data
    void startObjectAudioLoop(std::atomic<bool>& running);
    void changeObjectAudioData(
        const std::vector<ObjectAudioSourceData>& new_audio_source_data
    );
 
  private:
    // global settings for spatial audio
    const SpatialAudioSettings& audio_settings;
 
    // for playing depth estimation data
    std::vector<ALuint> sources;
    std::vector<std::vector<ALuint>> buffers;
    std::vector<DepthAudioSourceData> depth_audio_sources_data;
 
    // for playing object detection data
    std::deque<ObjectAudioSourceData> object_audio_sources_data;
    std::vector<short> audio_labels_file_buffer;
    std::mutex object_mutex;
    int AUDIO_FILE_SAMPLE_RATE = 0;
 
    ALCdevice* device = AL_NONE;
    ALCcontext* context = AL_NONE;
 
    void setupDepthAudioSources();
    void loadAudioLabelsFile();
};