BinkAudioInfo.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "AudioDecompress.h"
 
class  FBinkAudioInfo : public IStreamedCompressedInfo
{
public:
    BINKAUDIODECODER_API FBinkAudioInfo();
    BINKAUDIODECODER_API virtual ~FBinkAudioInfo();
 
    //~ Begin IStreamedCompressedInfo Interface
    virtual bool ParseHeader(const uint8* InSrcBufferData, uint32 InSrcBufferDataSize, FSoundQualityInfo* QualityInfo) override;
    virtual int32 GetFrameSize() override;
    virtual uint32 GetMaxFrameSizeSamples() const override;
    virtual bool CreateDecoder() override;
    virtual void SeekToTime(const float SeekToTimeSeconds) override;
    virtual void SeekToFrame(const uint32 SeekTimeFrames) override;
    virtual FDecodeResult Decode(const uint8* CompressedData, const int32 CompressedDataSize, uint8* OutPCMData, const int32 OutputPCMDataSize) override;
    virtual bool HasError() const override;
    //~ End IStreamedCompressedInfo Interface
 
protected:
    using Super = IStreamedCompressedInfo;
    
    void NotifySeek();
    
    // copied from header during ParseHeader
    uint32 MaxCompSpaceNeeded;
    uint32 SampleRate;
 
    // we lazy init this because the general use case (streaming) should always be able to decode
    // directly to the output buffer.
    TArray<uint8, TAlignedHeapAllocator<16>> OutputReservoir;
    struct BinkAudioDecoder* Decoder = 0;
    TArray<uint8, TAlignedHeapAllocator<16>> RawMemory;
    bool bErrorStateLatch = false;
};