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Implement BPM support

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Based on #62896, only implements the BPM support part.

* Implements BPM support in the AudioStreamOGG/MP3 importers.
* Can select BPM/Bar Size and total beats in a song file, as well as edit looping points.
* Looping is now BPM aware
* Added a special importer UI for configuring this.
* Added a special preview showing the audio waveform as well as the playback position in the resource picker.
* Renamed `AudioStream::instance` to `instantiate` for correctness.
This commit is contained in:
reduz
2022-07-21 01:00:58 +02:00
committed by Juan Linietsky
parent 976cb7ea9f
commit d1ddee2258
41 changed files with 1548 additions and 438 deletions
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46
modules/minimp3/resource_importer_mp3.cpp
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@ -34,6 +34,10 @@
#include "core/io/resource_saver.h"
#include "scene/resources/texture.h"
#ifdef TOOLS_ENABLED
#include "editor/import/audio_stream_import_settings.h"
#endif
String ResourceImporterMP3::get_importer_name() const {
return "mp3";
}
@ -69,14 +73,26 @@ String ResourceImporterMP3::get_preset_name(int p_idx) const {
void ResourceImporterMP3::get_import_options(const String &p_path, 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));
r_options->push_back(ImportOption(PropertyInfo(Variant::FLOAT, "bpm", PROPERTY_HINT_RANGE, "0,400,0.01,or_greater"), 0));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "beat_count", PROPERTY_HINT_RANGE, "0,512,or_greater"), 0));
r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "bar_beats", PROPERTY_HINT_RANGE, "2,32,or_greater"), 4));
}
Error ResourceImporterMP3::import(const String &p_source_file, const String &p_save_path, const HashMap<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"];
#ifdef TOOLS_ENABLED
bool ResourceImporterMP3::has_advanced_options() const {
return true;
}
void ResourceImporterMP3::show_advanced_options(const String &p_path) {
Ref<AudioStreamMP3> mp3_stream = import_mp3(p_path);
if (mp3_stream.is_valid()) {
AudioStreamImportSettings::get_singleton()->edit(p_path, "mp3", mp3_stream);
}
}
#endif
Ref<FileAccess> f = FileAccess::open(p_source_file, FileAccess::READ);
ERR_FAIL_COND_V(f.is_null(), ERR_CANT_OPEN);
Ref<AudioStreamMP3> ResourceImporterMP3::import_mp3(const String &p_path) {
Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
ERR_FAIL_COND_V(f.is_null(), Ref<AudioStreamMP3>());
uint64_t len = f->get_length();
@ -90,9 +106,27 @@ Error ResourceImporterMP3::import(const String &p_source_file, const String &p_s
mp3_stream.instantiate();
mp3_stream->set_data(data);
ERR_FAIL_COND_V(!mp3_stream->get_data().size(), ERR_FILE_CORRUPT);
ERR_FAIL_COND_V(!mp3_stream->get_data().size(), Ref<AudioStreamMP3>());
return mp3_stream;
}
Error ResourceImporterMP3::import(const String &p_source_file, const String &p_save_path, const HashMap<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"];
double bpm = p_options["bpm"];
float beat_count = p_options["beat_count"];
float bar_beats = p_options["bar_beats"];
Ref<AudioStreamMP3> mp3_stream = import_mp3(p_source_file);
if (mp3_stream.is_null()) {
return ERR_CANT_OPEN;
}
mp3_stream->set_loop(loop);
mp3_stream->set_loop_offset(loop_offset);
mp3_stream->set_bpm(bpm);
mp3_stream->set_beat_count(beat_count);
mp3_stream->set_bar_beats(bar_beats);
return ResourceSaver::save(p_save_path + ".mp3str", mp3_stream);
}