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UMidiFile

An FMidFile is primarily a container for FMidiTracks.

API > API/Plugins > API/Plugins/HarmonixMidi

An FMidFile is primarily a container for FMidiTracks.

This class can handle loading and saving standard midi files, as well as serializing itself to standard Unreal Engine FArchives.

   
Name UMidiFile
Type class
Header File /Engine/Plugins/Runtime/Harmonix/Source/HarmonixMidi/Public/HarmonixMidi/MidiFile.h
Include Path #include "HarmonixMidi/MidiFile.h"

Syntax

UCLASS (MinimalAPI, BlueprintType, Category="Music", Meta=(DisplayName="Standard MIDI File"))  
class UMidiFile :  
    public UObject ,  
    public IAudioProxyDataFactory ,  
    public IMusicMapSource

Inheritance Hierarchy

Implements Interfaces

Constructors

Name Remarks Include Path Unreal Specifiers

UMidiFile()

   HarmonixMidi/MidiFile.h  

Enums

Public

Name Remarks
ELoadResult  

Typedefs

Name Type Remarks Include Path
FMidiTrackList TArray< FMidiTrack >   HarmonixMidi/MidiFile.h

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
AssetImportData TObjectPtr< UAssetImportData > Import data for this MidiFileAsset updated during Import in MidiFile HarmonixMidi/MidiFile.h
  • VisibleAnywhere
  • Instanced
  • Category=ImportSettings
StartBar int32 The Start Bar of a Midi File. HarmonixMidi/MidiFile.h
  • EditDefaultsOnly
  • BlueprintReadOnly
  • Category="Midi File Start Bar"

Functions

Public

Name Remarks Include Path Unreal Specifiers

FMidiTrack * AddTrack ( const FString& Name
)

   HarmonixMidi/MidiFile.h  

void BuildConductorTrack()

   HarmonixMidi/MidiFile.h  

bool ConformToLength ( int32 NewLengthTicks
)

   HarmonixMidi/MidiFile.h  

bool ConformToLengthGivenLastEventTick ( int32 NewLastEventTick
)

   HarmonixMidi/MidiFile.h  

void Empty()

   HarmonixMidi/MidiFile.h  

void FindAllTextEvents ( const FString& EventText,
int32 TrackIndex,
TArray< int32 > OutIndexes
)

   HarmonixMidi/MidiFile.h  

TArray< int32 > FindAllTextEvents ( const FString& EventText,
const FString* TrackName
)

 Find all the ticks at which the text event occurs. HarmonixMidi/MidiFile.h  

int32 FindTextEvent ( const FString& EventText,
int32 TrackIndex
)

 Find the text event and return the tick or -1 if not found. HarmonixMidi/MidiFile.h  

int32 FindTextEvent ( const FString& EventText,
const FString* TrackName
)

 Find the text event and return the tick or -1 if not found. HarmonixMidi/MidiFile.h  

const FMidiTrack * FindTrackByName ( const FString& TrackName
) const

   HarmonixMidi/MidiFile.h  

int32 FindTrackIndexByName ( const FString& TrackName
) const

   HarmonixMidi/MidiFile.h  

FString GetImportedSrcFilePath()

   HarmonixMidi/MidiFile.h  

int32 GetLastEventTick()

   HarmonixMidi/MidiFile.h  

int32 GetNumTracks()

   HarmonixMidi/MidiFile.h  

TSharedPtr< FMidiFileData > GetOrCreateRenderableCopy()

   HarmonixMidi/MidiFile.h  
  HarmonixMidi/MidiFile.h  

const FSongMaps * GetSongMaps ()

   HarmonixMidi/MidiFile.h  

int32 GetStartBar()

   HarmonixMidi/MidiFile.h  

FMidiTrack * GetTrack ( int32 Index
)

   HarmonixMidi/MidiFile.h  

const FMidiTrack * GetTrack ( int32 Index
) const

   HarmonixMidi/MidiFile.h  

const FMidiTrackList & GetTracks ()

   HarmonixMidi/MidiFile.h  

FMidiTrackList & GetTracks ()

   HarmonixMidi/MidiFile.h  

bool IsEmpty()

   HarmonixMidi/MidiFile.h  
This does a quick and dirty to check to see if the length of the midi is on a musical subdivision. HarmonixMidi/MidiFile.h  

ELoadResult LoadStdMidiFile ( void* Buffer,
int32 BufferSize,
const FString& FileName,
int32 DesiredTicksPerQuarterNote,
Harmonix::Midi::Constants::EMidiTextEventEncoding InTextEncoding,
bool EnsureNotFailed
)

 A method for importing a standard midi file, with the option of providing a pointer to an FSongMaps instance that will be populated during the load. HarmonixMidi/MidiFile.h  

ELoadResult LoadStdMidiFile ( TSharedPtr< FArchive > Archive,
const FString& Filename,
int32 DesiredTicksPerQuarterNote,
Harmonix::Midi::Constants::EMidiTextEventEncoding InTextEncoding,
bool EnsureNotFailed
)

 A method for importing a standard midi file, with the option of providing a pointer to an FSongMaps instance that will be populated during the load. HarmonixMidi/MidiFile.h  

ELoadResult LoadStdMidiFile ( const FString& FilePath,
int32 DesiredTicksPerQuarterNote,
Harmonix::Midi::Constants::EMidiTextEventEncoding InTextEncoding,
bool EnsureNotFailed
)

 A method for importing a standard midi file, with the option of providing a pointer to an FSongMaps instance that will be populated during the load. HarmonixMidi/MidiFile.h  

void QuantizeLengthToNearestPerfectSubdivision ( const EMidiFileQuantizeDirection Direction
)

   HarmonixMidi/MidiFile.h  

void QuantizeLengthToSubdivision ( const EMidiFileQuantizeDirection Direction,
const EMidiClockSubdivisionQuantization Subdivision
)

   HarmonixMidi/MidiFile.h  

void SaveStdMidiFile ( const FString& FilePath
) const

 A method for exporting the midi track data to a standard midi file. HarmonixMidi/MidiFile.h  

void SaveStdMidiFile ( TSharedPtr< FArchive > Archive,
const FString& Filename
) const

 A method for exporting the midi track data to a standard midi file. HarmonixMidi/MidiFile.h  
This function must be called if any changes are made to any of the tracks of this midi file. HarmonixMidi/MidiFile.h  

void SortAllTracks()

   HarmonixMidi/MidiFile.h  

Overridden from UObject

Name Remarks Include Path Unreal Specifiers

virtual void BeginDestroy()

 UObject. HarmonixMidi/MidiFile.h  

virtual void GetAssetRegistryTags ( FAssetRegistryTagsContext Context
) const

   HarmonixMidi/MidiFile.h  

virtual EDataValidationResult IsDataValid ( FDataValidationContext& Context
) const

   HarmonixMidi/MidiFile.h  

virtual void PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

 StartBar UPROPERTY callback. HarmonixMidi/MidiFile.h  

virtual void PostInitProperties()

   HarmonixMidi/MidiFile.h  

Overridden from IAudioProxyDataFactory

Name Remarks Include Path Unreal Specifiers

virtual TSharedPtr< Audio::IProxyData > CreateProxyData ( const Audio::FProxyDataInitParams& InitParams
)

 IAudioProxyDataFactory. HarmonixMidi/MidiFile.h  

Overridden from IMusicMapSource

Name Remarks Include Path Unreal Specifiers

virtual void CreateFrameBasedMusicMap ( UFrameBasedMusicMap* Map
) const

   HarmonixMidi/MidiFile.h  

virtual FMarkerProviderResults GatherMarkers ( const UFrameBasedMusicMap* Map
) const

   HarmonixMidi/MidiFile.h  

Operators

Name Remarks Include Path Unreal Specifiers

bool operator== ( const UMidiFile& Other
) const

 A comparison operator. HarmonixMidi/MidiFile.h  

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