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#ifndef AUDIO_STREAM_PREVIEW_H
#define AUDIO_STREAM_PREVIEW_H
#include "os/thread.h"
#include "scene/main/node.h"
#include "servers/audio/audio_stream.h"
class AudioStreamPreview : public Reference {
GDCLASS(AudioStreamPreview, Reference)
friend class AudioStream;
Vector<uint8_t> preview;
float length;
friend class AudioStreamPreviewGenerator;
public:
float get_length() const;
float get_max(float p_time, float p_time_next) const;
float get_min(float p_time, float p_time_next) const;
AudioStreamPreview();
};
class AudioStreamPreviewGenerator : public Node {
GDCLASS(AudioStreamPreviewGenerator, Node)
static AudioStreamPreviewGenerator *singleton;
struct Preview {
Ref<AudioStreamPreview> preview;
Ref<AudioStream> base_stream;
Ref<AudioStreamPlayback> playback;
volatile bool generating;
ObjectID id;
Thread *thread;
};
Map<ObjectID, Preview> previews;
static void _preview_thread(void *p_preview);
void _update_emit(ObjectID p_id);
protected:
void _notification(int p_what);
static void _bind_methods();
public:
static AudioStreamPreviewGenerator *get_singleton() { return singleton; }
Ref<AudioStreamPreview> generate_preview(const Ref<AudioStream> &p_preview);
AudioStreamPreviewGenerator();
};
#endif // AUDIO_STREAM_PREVIEW_H
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