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Merge pull request #43007 from DeleteSystem32/mp3-support

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Add MP3 import and playback support
This commit is contained in:
Rémi Verschelde 2020-12-07 11:36:03 +01:00 committed by GitHub
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#!/usr/bin/env python
Import("env")
Import("env_modules")
env_minimp3 = env_modules.Clone()
thirdparty_dir = "#thirdparty/minimp3/"
# Treat minimp3 headers as system headers to avoid raising warnings. Not supported on MSVC.
if not env.msvc:
env_minimp3.Append(CPPFLAGS=["-isystem", Dir(thirdparty_dir).path])
else:
env_minimp3.Prepend(CPPPATH=[thirdparty_dir])
# Godot's own source files
env_minimp3.add_source_files(env.modules_sources, "*.cpp")

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/*************************************************************************/
/* audio_stream_mp3.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#define MINIMP3_ONLY_MP3
#define MINIMP3_FLOAT_OUTPUT
#define MINIMP3_IMPLEMENTATION
#define MINIMP3_NO_STDIO
#include "audio_stream_mp3.h"
#include "core/os/file_access.h"
void AudioStreamPlaybackMP3::_mix_internal(AudioFrame *p_buffer, int p_frames) {
ERR_FAIL_COND(!active);
int todo = p_frames;
while (todo && active) {
mp3dec_frame_info_t frame_info;
mp3d_sample_t *buf_frame = nullptr;
int samples_mixed = mp3dec_ex_read_frame(mp3d, &buf_frame, &frame_info, mp3_stream->channels);
if (samples_mixed) {
p_buffer[p_frames - todo] = AudioFrame(buf_frame[0], buf_frame[samples_mixed - 1]);
--todo;
++frames_mixed;
}
else {
//EOF
if (mp3_stream->loop) {
seek(mp3_stream->loop_offset);
loops++;
} else {
//fill remainder with silence
for (int i = p_frames - todo; i < p_frames; i++) {
p_buffer[i] = AudioFrame(0, 0);
}
active = false;
todo = 0;
}
}
}
}
float AudioStreamPlaybackMP3::get_stream_sampling_rate() {
return mp3_stream->sample_rate;
}
void AudioStreamPlaybackMP3::start(float p_from_pos) {
active = true;
seek(p_from_pos);
loops = 0;
_begin_resample();
}
void AudioStreamPlaybackMP3::stop() {
active = false;
}
bool AudioStreamPlaybackMP3::is_playing() const {
return active;
}
int AudioStreamPlaybackMP3::get_loop_count() const {
return loops;
}
float AudioStreamPlaybackMP3::get_playback_position() const {
return float(frames_mixed) / mp3_stream->sample_rate;
}
void AudioStreamPlaybackMP3::seek(float p_time) {
if (!active)
return;
if (p_time >= mp3_stream->get_length()) {
p_time = 0;
}
frames_mixed = uint32_t(mp3_stream->sample_rate * p_time);
mp3dec_ex_seek(mp3d, frames_mixed * mp3_stream->channels);
}
AudioStreamPlaybackMP3::~AudioStreamPlaybackMP3() {
if (mp3d) {
mp3dec_ex_close(mp3d);
memfree(mp3d);
}
}
Ref<AudioStreamPlayback> AudioStreamMP3::instance_playback() {
Ref<AudioStreamPlaybackMP3> mp3s;
ERR_FAIL_COND_V(data == nullptr, mp3s);
mp3s.instance();
mp3s->mp3_stream = Ref<AudioStreamMP3>(this);
mp3s->mp3d = (mp3dec_ex_t *)memalloc(sizeof(mp3dec_ex_t));
int errorcode = mp3dec_ex_open_buf(mp3s->mp3d, (const uint8_t *)data, data_len, MP3D_SEEK_TO_SAMPLE);
mp3s->frames_mixed = 0;
mp3s->active = false;
mp3s->loops = 0;
if (errorcode) {
ERR_FAIL_COND_V(errorcode, Ref<AudioStreamPlaybackMP3>());
}
return mp3s;
}
String AudioStreamMP3::get_stream_name() const {
return ""; //return stream_name;
}
void AudioStreamMP3::clear_data() {
if (data) {
memfree(data);
data = nullptr;
data_len = 0;
}
}
void AudioStreamMP3::set_data(const Vector<uint8_t> &p_data) {
int src_data_len = p_data.size();
const uint8_t *src_datar = p_data.ptr();
mp3dec_ex_t mp3d;
mp3dec_ex_open_buf(&mp3d, src_datar, src_data_len, MP3D_SEEK_TO_SAMPLE);
channels = mp3d.info.channels;
sample_rate = mp3d.info.hz;
length = float(mp3d.samples) / (sample_rate * float(channels));
mp3dec_ex_close(&mp3d);
clear_data();
data = memalloc(src_data_len);
copymem(data, src_datar, src_data_len);
data_len = src_data_len;
}
Vector<uint8_t> AudioStreamMP3::get_data() const {
Vector<uint8_t> vdata;
if (data_len && data) {
vdata.resize(data_len);
{
uint8_t *w = vdata.ptrw();
copymem(w, data, data_len);
}
}
return vdata;
}
void AudioStreamMP3::set_loop(bool p_enable) {
loop = p_enable;
}
bool AudioStreamMP3::has_loop() const {
return loop;
}
void AudioStreamMP3::set_loop_offset(float p_seconds) {
loop_offset = p_seconds;
}
float AudioStreamMP3::get_loop_offset() const {
return loop_offset;
}
float AudioStreamMP3::get_length() const {
return length;
}
void AudioStreamMP3::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_data", "data"), &AudioStreamMP3::set_data);
ClassDB::bind_method(D_METHOD("get_data"), &AudioStreamMP3::get_data);
ClassDB::bind_method(D_METHOD("set_loop", "enable"), &AudioStreamMP3::set_loop);
ClassDB::bind_method(D_METHOD("has_loop"), &AudioStreamMP3::has_loop);
ClassDB::bind_method(D_METHOD("set_loop_offset", "seconds"), &AudioStreamMP3::set_loop_offset);
ClassDB::bind_method(D_METHOD("get_loop_offset"), &AudioStreamMP3::get_loop_offset);
ADD_PROPERTY(PropertyInfo(Variant::PACKED_BYTE_ARRAY, "data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_data", "get_data");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "loop", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_loop", "has_loop");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "loop_offset", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_loop_offset", "get_loop_offset");
}
AudioStreamMP3::AudioStreamMP3() {
}
AudioStreamMP3::~AudioStreamMP3() {
clear_data();
}

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/*************************************************************************/
/* audio_stream_mp3.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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_MP3_H
#define AUDIO_STREAM_MP3_H
#include "core/io/resource_loader.h"
#include "servers/audio/audio_stream.h"
#include "minimp3_ex.h"
class AudioStreamMP3;
class AudioStreamPlaybackMP3 : public AudioStreamPlaybackResampled {
GDCLASS(AudioStreamPlaybackMP3, AudioStreamPlaybackResampled);
mp3dec_ex_t *mp3d = nullptr;
uint32_t frames_mixed = 0;
bool active = false;
int loops = 0;
friend class AudioStreamMP3;
Ref<AudioStreamMP3> mp3_stream;
protected:
virtual void _mix_internal(AudioFrame *p_buffer, int p_frames) override;
virtual float get_stream_sampling_rate() override;
public:
virtual void start(float 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 float get_playback_position() const override;
virtual void seek(float p_time) override;
AudioStreamPlaybackMP3() {}
~AudioStreamPlaybackMP3();
};
class AudioStreamMP3 : public AudioStream {
GDCLASS(AudioStreamMP3, AudioStream);
OBJ_SAVE_TYPE(AudioStream) //children are all saved as AudioStream, so they can be exchanged
RES_BASE_EXTENSION("mp3str");
friend class AudioStreamPlaybackMP3;
void *data = nullptr;
uint32_t data_len = 0;
float sample_rate = 1;
int channels = 1;
float length = 0;
bool loop = false;
float loop_offset = 0;
void clear_data();
protected:
static void _bind_methods();
public:
void set_loop(bool p_enable);
bool has_loop() const;
void set_loop_offset(float p_seconds);
float get_loop_offset() const;
virtual Ref<AudioStreamPlayback> instance_playback() override;
virtual String get_stream_name() const override;
void set_data(const Vector<uint8_t> &p_data);
Vector<uint8_t> get_data() const;
virtual float get_length() const override;
AudioStreamMP3();
virtual ~AudioStreamMP3();
};
#endif // AUDIO_STREAM_MP3_H

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def can_build(env, platform):
return True
def configure(env):
pass
def get_doc_classes():
return [
"AudioStreamMP3",
]
def get_doc_path():
return "doc_classes"

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<?xml version="1.0" encoding="UTF-8" ?>
<class name="AudioStreamMP3" inherits="AudioStream" version="4.0">
<brief_description>
MP3 audio stream driver.
</brief_description>
<description>
MP3 audio stream driver.
</description>
<tutorials>
</tutorials>
<methods>
</methods>
<members>
<member name="data" type="PackedByteArray" setter="set_data" getter="get_data" default="PackedByteArray( )">
Contains the audio data in bytes.
</member>
<member name="loop" type="bool" setter="set_loop" getter="has_loop" default="false">
If [code]true[/code], the stream will automatically loop when it reaches the end.
</member>
<member name="loop_offset" type="float" setter="set_loop_offset" getter="get_loop_offset" default="0.0">
Time in seconds at which the stream starts after being looped.
</member>
</members>
<constants>
</constants>
</class>

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/*************************************************************************/
/* register_types.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#include "register_types.h"
#include "audio_stream_mp3.h"
#ifdef TOOLS_ENABLED
#include "core/config/engine.h"
#include "resource_importer_mp3.h"
#endif
void register_minimp3_types() {
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
Ref<ResourceImporterMP3> mp3_import;
mp3_import.instance();
ResourceFormatImporter::get_singleton()->add_importer(mp3_import);
}
#endif
ClassDB::register_class<AudioStreamMP3>();
}
void unregister_minimp3_types() {
}

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/*************************************************************************/
/* register_types.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 MINIMP3_REGISTER_TYPES_H
#define MINIMP3_REGISTER_TYPES_H
void register_minimp3_types();
void unregister_minimp3_types();
#endif // MINIMP3_REGISTER_TYPES_H

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/*************************************************************************/
/* resource_importer_mp3.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#include "resource_importer_mp3.h"
#include "core/io/resource_saver.h"
#include "core/os/file_access.h"
#include "scene/resources/texture.h"
String ResourceImporterMP3::get_importer_name() const {
return "mp3";
}
String ResourceImporterMP3::get_visible_name() const {
return "MP3";
}
void ResourceImporterMP3::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("mp3");
}
String ResourceImporterMP3::get_save_extension() const {
return "mp3str";
}
String ResourceImporterMP3::get_resource_type() const {
return "AudioStreamMP3";
}
bool ResourceImporterMP3::get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const {
return true;
}
int ResourceImporterMP3::get_preset_count() const {
return 0;
}
String ResourceImporterMP3::get_preset_name(int p_idx) const {
return String();
}
void ResourceImporterMP3::get_import_options(List<ImportOption> *r_options, int p_preset) const {
r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "loop"), true));
r_options->push_back(ImportOption(PropertyInfo(Variant::FLOAT, "loop_offset"), 0));
}
Error ResourceImporterMP3::import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
bool loop = p_options["loop"];
float loop_offset = p_options["loop_offset"];
FileAccess *f = FileAccess::open(p_source_file, FileAccess::READ);
ERR_FAIL_COND_V(!f, ERR_CANT_OPEN);
size_t len = f->get_len();
Vector<uint8_t> data;
data.resize(len);
uint8_t *w = data.ptrw();
f->get_buffer(w, len);
memdelete(f);
Ref<AudioStreamMP3> mp3_stream;
mp3_stream.instance();
mp3_stream->set_data(data);
ERR_FAIL_COND_V(!mp3_stream->get_data().size(), ERR_FILE_CORRUPT);
mp3_stream->set_loop(loop);
mp3_stream->set_loop_offset(loop_offset);
return ResourceSaver::save(p_save_path + ".mp3str", mp3_stream);
}
ResourceImporterMP3::ResourceImporterMP3() {
}

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/*************************************************************************/
/* resource_importer_mp3.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 RESOURCE_IMPORTER_MP3_H
#define RESOURCE_IMPORTER_MP3_H
#include "audio_stream_mp3.h"
#include "core/io/resource_importer.h"
class ResourceImporterMP3 : public ResourceImporter {
GDCLASS(ResourceImporterMP3, ResourceImporter);
public:
virtual String get_importer_name() const override;
virtual String get_visible_name() const override;
virtual void get_recognized_extensions(List<String> *p_extensions) const override;
virtual String get_save_extension() const override;
virtual String get_resource_type() const override;
virtual int get_preset_count() const override;
virtual String get_preset_name(int p_idx) const override;
virtual void get_import_options(List<ImportOption> *r_options, int p_preset = 0) const override;
virtual bool get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const override;
virtual Error import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = nullptr, Variant *r_metadata = nullptr) override;
ResourceImporterMP3();
};
#endif // RESOURCE_IMPORTER_MP3_H

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