Chimera Publisher

The ChimeraPublisherComponent is the core component for connecting to a room and publishing audio/video streams.

Properties

Property	Type	Description
`RoomUrl`	`FString`	Server WebSocket URL
`Token`	`FString`	JWT access token
`Role`	`EChimeraClientRole`	Client role (Auto/Publisher/Subscriber/Both)
`bReceiveAudio`	`bool`	Enable receiving audio (required for lip sync)
`SampleRate`	`int32`	Audio sample rate (default: 48000)
`Channels`	`int32`	Audio channels (1 = mono recommended)

Events

OnConnected

Fired when successfully connected to a room.

UPROPERTY(BlueprintAssignable)
FOnChimeraConnected OnConnected;

OnDisconnected

Fired when disconnected from the room.

UPROPERTY(BlueprintAssignable)
FOnChimeraDisconnected OnDisconnected;

OnAudioDataReceived

Fired when audio data is received from the room. Use this for lip sync integration or feeding AEC.

UPROPERTY(BlueprintAssignable)
FOnChimeraAudioDataReceived OnAudioDataReceived;
// Parameters: AudioData (TArray<float>), FramesPerChannel, Channels, SampleRate

Methods

Connect

Connect to the room using configured URL and token.

UFUNCTION(BlueprintCallable)
void Connect();

Disconnect

Disconnect from the current room.

UFUNCTION(BlueprintCallable)
void Disconnect();

SendAudioData

Send audio data to the room.

UFUNCTION(BlueprintCallable)
void SendAudioData(const TArray<float>& AudioData, int32 FramesPerChannel);

Blueprint Usage

Add the component to your Actor
Set the Room URL and Token properties
Call Connect() to join the room
Bind to OnAudioDataReceived for incoming audio

C++ Example

void AMyActor::BeginPlay()
{
    Super::BeginPlay();
 
    Publisher = FindComponentByClass<UChimeraPublisherComponent>();
    if (Publisher)
    {
        Publisher->OnConnected.AddDynamic(this, &AMyActor::HandleConnected);
        Publisher->OnAudioDataReceived.AddDynamic(this, &AMyActor::HandleAudioReceived);
        Publisher->Connect();
    }
}
 
void AMyActor::HandleConnected()
{
    UE_LOG(LogTemp, Log, TEXT("Connected to room!"));
}
 
void AMyActor::HandleAudioReceived(const TArray<float>& AudioData, int32 FramesPerChannel, int32 Channels, int32 SampleRate)
{
    // Process received audio (e.g., feed to AEC or lip sync)
}

Chimera Publisher

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