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/**************************************************************************/
/* audio_stream_playlist.h */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef AUDIO_STREAM_PLAYLIST_H
#define AUDIO_STREAM_PLAYLIST_H
#include "servers/audio/audio_stream.h"
class AudioStreamPlaybackPlaylist;
class AudioStreamPlaylist : public AudioStream {
GDCLASS(AudioStreamPlaylist, AudioStream)
OBJ_SAVE_TYPE(AudioStream)
private:
friend class AudioStreamPlaybackPlaylist;
enum {
MAX_STREAMS = 64
};
bool shuffle = false;
bool loop = true;
double fade_time = 0.3;
int stream_count = 0;
Ref<AudioStream> audio_streams[MAX_STREAMS];
HashSet<AudioStreamPlaybackPlaylist *> playbacks;
public:
virtual double get_bpm() const override;
void set_stream_count(int p_count);
int get_stream_count() const;
void set_fade_time(float p_time);
float get_fade_time() const;
void set_shuffle(bool p_shuffle);
bool get_shuffle() const;
void set_loop(bool p_loop);
virtual bool has_loop() const override;
void set_list_stream(int p_stream_index, Ref<AudioStream> p_stream);
Ref<AudioStream> get_list_stream(int p_stream_index) const;
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
virtual String get_stream_name() const override;
virtual double get_length() const override;
protected:
static void _bind_methods();
void _validate_property(PropertyInfo &r_property) const;
};
///////////////////////////////////////
class AudioStreamPlaybackPlaylist : public AudioStreamPlayback {
GDCLASS(AudioStreamPlaybackPlaylist, AudioStreamPlayback)
friend class AudioStreamPlaylist;
private:
enum {
MIX_BUFFER_SIZE = 128
};
AudioFrame mix_buffer[MIX_BUFFER_SIZE];
AudioFrame fade_buffer[MIX_BUFFER_SIZE];
Ref<AudioStreamPlaylist> playlist;
Ref<AudioStreamPlayback> playback[AudioStreamPlaylist::MAX_STREAMS];
int play_order[AudioStreamPlaylist::MAX_STREAMS] = {};
double stream_todo = 0.0;
int fade_index = -1;
double fade_volume = 1.0;
int play_index = 0;
double offset = 0.0;
int loop_count = 0;
bool active = false;
void _update_order();
void _update_playback_instances();
public:
virtual void start(double p_from_pos = 0.0) override;
virtual void stop() override;
virtual bool is_playing() const override;
virtual int get_loop_count() const override; // times it looped
virtual double get_playback_position() const override;
virtual void seek(double p_time) override;
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
virtual void tag_used_streams() override;
~AudioStreamPlaybackPlaylist();
};
#endif // AUDIO_STREAM_PLAYLIST_H
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