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