streamplayer.h
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#ifndef STREAMPLAYER_H
#define STREAMPLAYER_H
#include<MdaAudioOutputStream.h>
const TInt KSilenceBuffer = 256;
class MStreamObs
{
public:
enum
{
EInit,
EPlay,
EWrite,
EClose,
};
virtual void Complete(TInt aState, TInt aError) = 0;
};
class MStreamProvider
{
public:
virtual TPtrC8 Data() = 0;
};
NONSHARABLE_CLASS(CStreamPlayer) : public CBase, public MMdaAudioOutputStreamCallback
{
public:
CStreamPlayer(MStreamProvider& aProvider, MStreamObs& aObs);
~CStreamPlayer();
void ConstructL();
static TInt ClosestSupportedRate(TInt aRate);
TInt OpenStream(TInt aRate, TInt aChannels, TUint32 aType = KMMFFourCCCodePCM16);
void SetVolume(TInt aNew);
TInt Volume() const;
TInt MaxVolume() const;
void Stop();
void Start();
void Open();
void Close();
TBool Playing() const;
TBool Closed() const;
private:
void MaoscOpenComplete(TInt aError) ;
void MaoscBufferCopied(TInt aError, const TDesC8& aBuffer);
void MaoscPlayComplete(TInt aError);
private:
void Request();
void SetCapsL();
private:
MStreamProvider& iProvider;
MStreamObs& iObs;
TInt iVolume;
CMdaAudioOutputStream* iStream;
TInt iRate;
TInt iChannels;
TUint32 iType;
enum
{
ENone = 0,
EInited = 0x1,
EStarted = 0x2,
EStopped = 0x4,
EVolumeChange = 0x8,
EDied = 0x10
};
TInt iState;
TBuf8<KSilenceBuffer> iSilence;
TPtrC8 iPtr;
};
#endif