100 lines
4.0 KiB
C++
100 lines
4.0 KiB
C++
/**************************************************************************/
|
|
/* audio_stream_generator.h */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* 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_GENERATOR_H
|
|
#define AUDIO_STREAM_GENERATOR_H
|
|
|
|
#include "core/templates/ring_buffer.h"
|
|
#include "servers/audio/audio_stream.h"
|
|
|
|
class AudioStreamGenerator : public AudioStream {
|
|
GDCLASS(AudioStreamGenerator, AudioStream);
|
|
|
|
float mix_rate;
|
|
float buffer_len;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
void set_mix_rate(float p_mix_rate);
|
|
float get_mix_rate() const;
|
|
|
|
void set_buffer_length(float p_seconds);
|
|
float get_buffer_length() const;
|
|
|
|
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
|
|
virtual String get_stream_name() const override;
|
|
|
|
virtual double get_length() const override;
|
|
virtual bool is_monophonic() const override;
|
|
AudioStreamGenerator();
|
|
};
|
|
|
|
class AudioStreamGeneratorPlayback : public AudioStreamPlaybackResampled {
|
|
GDCLASS(AudioStreamGeneratorPlayback, AudioStreamPlaybackResampled);
|
|
friend class AudioStreamGenerator;
|
|
RingBuffer<AudioFrame> buffer;
|
|
int skips;
|
|
bool active;
|
|
float mixed;
|
|
AudioStreamGenerator *generator = nullptr;
|
|
|
|
protected:
|
|
virtual int _mix_internal(AudioFrame *p_buffer, int p_frames) override;
|
|
virtual float get_stream_sampling_rate() override;
|
|
|
|
static void _bind_methods();
|
|
|
|
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;
|
|
|
|
bool push_frame(const Vector2 &p_frame);
|
|
bool can_push_buffer(int p_frames) const;
|
|
bool push_buffer(const PackedVector2Array &p_frames);
|
|
int get_frames_available() const;
|
|
int get_skips() const;
|
|
|
|
virtual void tag_used_streams() override;
|
|
|
|
void clear_buffer();
|
|
|
|
AudioStreamGeneratorPlayback();
|
|
};
|
|
|
|
#endif // AUDIO_STREAM_GENERATOR_H
|