1. Epic GamesDeveloper
  3. IAudioStreamingManager

IAudioStreamingManager

Interface to add functions specifically related to audio streaming

API > API/Runtime > API/Runtime/Engine

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/ContentStreaming.h
Include #include "ContentStreaming.h"

Syntax

struct IAudioStreamingManager : public IStreamingManager

Remarks

Interface to add functions specifically related to audio streaming

Variables

  Type Name Description
Protected variable friend FAudioChunkHandle  

Functions

  Type Name Description
Public function void

AddDecoder ( ICompressedAudioInfo* CompressedAudioInfo
)

 Adds the decoder to the streaming manager to prevent stream chunks from getting reaped from underneath it
Protected function void This can be used to increment reference counted handles to audio chunks.
Public function void Adds a new Sound Source to the streaming manager.
Public function void

AddStreamingSoundWave ( const FSoundWaveProxyPtr& SoundWave
)

 Adds a new Sound Wave to the streaming manager.
Protected function Static FAudioChunkHandle

BuildChunkHandle ( const uint8* InData,
uint32 NumBytes,
const FSoundWaveProxyPtr& InSoundWave,
const FName& SoundWaveName,
uint32 InChunkIndex,
uint64 CacheLookupID
)

 This can be called by implementers of IAudioStreamingManager to construct an FAudioChunkHandle using an otherwise inaccessible constructor.
Public function Const bool

CanCreateSoundSource ( const FWaveInstance* WaveInstance
)

  
Public function FString Generate a memory report as a formatted string for this streaming manager.
Public function Const FAudioChunkHandle

GetLoadedChunk ( const FSoundWaveProxyPtr& SoundWave,
uint32 ChunkIndex,
bool bBlockForLoad,
bool bForImmediatePlayback
)

 Gets a pointer to a chunk of audio data
Public function Const bool Returns true if this is a streaming Sound Source that is managed by the streaming manager.
Public function Const bool

IsManagedStreamingSoundWave ( const FSoundWaveProxyPtr& SoundWave
)

 Returns true if this is a Sound Wave that is managed by the streaming manager.
Public function bool

IsStreamingInProgress ( const FSoundWaveProxyPtr& SoundWave
)

 Returns true if this Sound Wave is currently streaming a chunk.
Public function void

RemoveDecoder ( ICompressedAudioInfo* CompressedAudioInfo
)

 Removes the decoder from the streaming manager.
Protected function void This can be used to decrement reference counted handles to audio chunks.
Public function void Removes a Sound Source from the streaming manager.
Public function void

RemoveStreamingSoundWave ( const FSoundWaveProxyPtr& SoundWave
)

 Removes a Sound Wave from the streaming manager.
Public function int32

RenderStatAudioStreaming ( UWorld* World,
FViewport* Viewport,
FCanvas* Canvas,
int32 X,
int32 Y,
const FVector* ViewLocation,
const FRotator* ViewRotation
)

 Used for rendering debug info:
Public function bool

RequestChunk ( const FSoundWaveProxyPtr& SoundWave,
uint32 ChunkIndex,
TFunction< void(EAudioChunkLoadResult)> OnLoadCompleted,
ENamedThreads::Type ThreadToCallOnLoadCompletedOn,
bool bForImmediatePlayback
)

 Manually prepare a chunk to start playing back.
Public function void

SetProfilingMode ( bool bEnabled
)

 Whether to toggle a performance intensive profiling mode the streaming manager.
Public function uint64

TrimMemory ( uint64 NumBytesToFree
)

 This will start evicting elements from the cache until either hit our target of bytes or run out of chunks we can free.

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