304 lines
9.7 KiB
C++
304 lines
9.7 KiB
C++
/**************************************************************************/
|
|
/* audio_stream.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_H
|
|
#define AUDIO_STREAM_H
|
|
|
|
#include "core/io/image.h"
|
|
#include "core/io/resource.h"
|
|
#include "servers/audio/audio_filter_sw.h"
|
|
#include "servers/audio_server.h"
|
|
|
|
#include "core/object/gdvirtual.gen.inc"
|
|
#include "core/object/script_language.h"
|
|
#include "core/variant/native_ptr.h"
|
|
|
|
class AudioStream;
|
|
|
|
class AudioStreamPlayback : public RefCounted {
|
|
GDCLASS(AudioStreamPlayback, RefCounted);
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
GDVIRTUAL1(_start, double)
|
|
GDVIRTUAL0(_stop)
|
|
GDVIRTUAL0RC(bool, _is_playing)
|
|
GDVIRTUAL0RC(int, _get_loop_count)
|
|
GDVIRTUAL0RC(double, _get_playback_position)
|
|
GDVIRTUAL1(_seek, double)
|
|
GDVIRTUAL3R(int, _mix, GDExtensionPtr<AudioFrame>, float, int)
|
|
GDVIRTUAL0(_tag_used_streams)
|
|
public:
|
|
virtual void start(double p_from_pos = 0.0);
|
|
virtual void stop();
|
|
virtual bool is_playing() const;
|
|
|
|
virtual int get_loop_count() const; //times it looped
|
|
|
|
virtual double get_playback_position() const;
|
|
virtual void seek(double p_time);
|
|
|
|
virtual void tag_used_streams();
|
|
|
|
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames);
|
|
};
|
|
|
|
class AudioStreamPlaybackResampled : public AudioStreamPlayback {
|
|
GDCLASS(AudioStreamPlaybackResampled, AudioStreamPlayback);
|
|
|
|
enum {
|
|
FP_BITS = 16, //fixed point used for resampling
|
|
FP_LEN = (1 << FP_BITS),
|
|
FP_MASK = FP_LEN - 1,
|
|
INTERNAL_BUFFER_LEN = 128, // 128 warrants 3ms positional jitter at much at 44100hz
|
|
CUBIC_INTERP_HISTORY = 4
|
|
};
|
|
|
|
AudioFrame internal_buffer[INTERNAL_BUFFER_LEN + CUBIC_INTERP_HISTORY];
|
|
unsigned int internal_buffer_end = -1;
|
|
uint64_t mix_offset = 0;
|
|
|
|
protected:
|
|
void begin_resample();
|
|
// Returns the number of frames that were mixed.
|
|
virtual int _mix_internal(AudioFrame *p_buffer, int p_frames);
|
|
virtual float get_stream_sampling_rate();
|
|
|
|
GDVIRTUAL2R(int, _mix_resampled, GDExtensionPtr<AudioFrame>, int)
|
|
GDVIRTUAL0RC(float, _get_stream_sampling_rate)
|
|
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
|
|
|
|
AudioStreamPlaybackResampled() { mix_offset = 0; }
|
|
};
|
|
|
|
class AudioStream : public Resource {
|
|
GDCLASS(AudioStream, Resource);
|
|
OBJ_SAVE_TYPE(AudioStream); // Saves derived classes with common type so they can be interchanged.
|
|
|
|
enum {
|
|
MAX_TAGGED_OFFSETS = 8
|
|
};
|
|
|
|
uint64_t tagged_frame = 0;
|
|
uint64_t offset_count = 0;
|
|
float tagged_offsets[MAX_TAGGED_OFFSETS];
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
GDVIRTUAL0RC(Ref<AudioStreamPlayback>, _instantiate_playback)
|
|
GDVIRTUAL0RC(String, _get_stream_name)
|
|
GDVIRTUAL0RC(double, _get_length)
|
|
GDVIRTUAL0RC(bool, _is_monophonic)
|
|
GDVIRTUAL0RC(double, _get_bpm)
|
|
GDVIRTUAL0RC(bool, _has_loop)
|
|
GDVIRTUAL0RC(int, _get_bar_beats)
|
|
GDVIRTUAL0RC(int, _get_beat_count)
|
|
|
|
public:
|
|
virtual Ref<AudioStreamPlayback> instantiate_playback();
|
|
virtual String get_stream_name() const;
|
|
|
|
virtual double get_bpm() const;
|
|
virtual bool has_loop() const;
|
|
virtual int get_bar_beats() const;
|
|
virtual int get_beat_count() const;
|
|
|
|
virtual double get_length() const;
|
|
virtual bool is_monophonic() const;
|
|
|
|
void tag_used(float p_offset);
|
|
uint64_t get_tagged_frame() const;
|
|
uint32_t get_tagged_frame_count() const;
|
|
float get_tagged_frame_offset(int p_index) const;
|
|
};
|
|
|
|
// Microphone
|
|
|
|
class AudioStreamPlaybackMicrophone;
|
|
|
|
class AudioStreamMicrophone : public AudioStream {
|
|
GDCLASS(AudioStreamMicrophone, AudioStream);
|
|
friend class AudioStreamPlaybackMicrophone;
|
|
|
|
HashSet<AudioStreamPlaybackMicrophone *> playbacks;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
|
|
virtual String get_stream_name() const override;
|
|
|
|
virtual double get_length() const override; //if supported, otherwise return 0
|
|
|
|
virtual bool is_monophonic() const override;
|
|
|
|
AudioStreamMicrophone();
|
|
};
|
|
|
|
class AudioStreamPlaybackMicrophone : public AudioStreamPlaybackResampled {
|
|
GDCLASS(AudioStreamPlaybackMicrophone, AudioStreamPlaybackResampled);
|
|
friend class AudioStreamMicrophone;
|
|
|
|
bool active = false;
|
|
unsigned int input_ofs = 0;
|
|
|
|
Ref<AudioStreamMicrophone> microphone;
|
|
|
|
protected:
|
|
virtual int _mix_internal(AudioFrame *p_buffer, int p_frames) override;
|
|
virtual float get_stream_sampling_rate() override;
|
|
virtual double get_playback_position() const override;
|
|
|
|
public:
|
|
virtual int mix(AudioFrame *p_buffer, float p_rate_scale, int p_frames) override;
|
|
|
|
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 void seek(double p_time) override;
|
|
|
|
virtual void tag_used_streams() override;
|
|
|
|
~AudioStreamPlaybackMicrophone();
|
|
AudioStreamPlaybackMicrophone();
|
|
};
|
|
|
|
//
|
|
|
|
class AudioStreamPlaybackRandomizer;
|
|
|
|
class AudioStreamRandomizer : public AudioStream {
|
|
GDCLASS(AudioStreamRandomizer, AudioStream);
|
|
|
|
public:
|
|
enum PlaybackMode {
|
|
PLAYBACK_RANDOM_NO_REPEATS,
|
|
PLAYBACK_RANDOM,
|
|
PLAYBACK_SEQUENTIAL,
|
|
};
|
|
|
|
private:
|
|
friend class AudioStreamPlaybackRandomizer;
|
|
|
|
struct PoolEntry {
|
|
Ref<AudioStream> stream;
|
|
float weight;
|
|
};
|
|
|
|
HashSet<AudioStreamPlaybackRandomizer *> playbacks;
|
|
Vector<PoolEntry> audio_stream_pool;
|
|
float random_pitch_scale = 1.0f;
|
|
float random_volume_offset_db = 0.0f;
|
|
|
|
Ref<AudioStreamPlayback> instance_playback_random();
|
|
Ref<AudioStreamPlayback> instance_playback_no_repeats();
|
|
Ref<AudioStreamPlayback> instance_playback_sequential();
|
|
|
|
Ref<AudioStream> last_playback = nullptr;
|
|
PlaybackMode playback_mode = PLAYBACK_RANDOM_NO_REPEATS;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
bool _set(const StringName &p_name, const Variant &p_value);
|
|
bool _get(const StringName &p_name, Variant &r_ret) const;
|
|
void _get_property_list(List<PropertyInfo> *p_list) const;
|
|
|
|
public:
|
|
void add_stream(int p_index, Ref<AudioStream> p_stream, float p_weight = 1.0);
|
|
void move_stream(int p_index_from, int p_index_to);
|
|
void remove_stream(int p_index);
|
|
|
|
void set_stream(int p_index, Ref<AudioStream> p_stream);
|
|
Ref<AudioStream> get_stream(int p_index) const;
|
|
void set_stream_probability_weight(int p_index, float p_weight);
|
|
float get_stream_probability_weight(int p_index) const;
|
|
|
|
void set_streams_count(int p_count);
|
|
int get_streams_count() const;
|
|
|
|
void set_random_pitch(float p_pitch_scale);
|
|
float get_random_pitch() const;
|
|
|
|
void set_random_volume_offset_db(float p_volume_offset_db);
|
|
float get_random_volume_offset_db() const;
|
|
|
|
void set_playback_mode(PlaybackMode p_playback_mode);
|
|
PlaybackMode get_playback_mode() const;
|
|
|
|
virtual Ref<AudioStreamPlayback> instantiate_playback() override;
|
|
virtual String get_stream_name() const override;
|
|
|
|
virtual double get_length() const override; //if supported, otherwise return 0
|
|
virtual bool is_monophonic() const override;
|
|
|
|
AudioStreamRandomizer();
|
|
};
|
|
|
|
class AudioStreamPlaybackRandomizer : public AudioStreamPlayback {
|
|
GDCLASS(AudioStreamPlaybackRandomizer, AudioStreamPlayback);
|
|
friend class AudioStreamRandomizer;
|
|
|
|
Ref<AudioStreamRandomizer> randomizer;
|
|
Ref<AudioStreamPlayback> playback;
|
|
Ref<AudioStreamPlayback> playing;
|
|
|
|
float pitch_scale;
|
|
float volume_scale;
|
|
|
|
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;
|
|
|
|
~AudioStreamPlaybackRandomizer();
|
|
};
|
|
|
|
VARIANT_ENUM_CAST(AudioStreamRandomizer::PlaybackMode);
|
|
|
|
#endif // AUDIO_STREAM_H
|