1 #ifndef STREAMPLAYER_H
2 #define STREAMPLAYER_H
3
4 #include<MdaAudioOutputStream.h>
5
6 const TInt KSilenceBuffer = 256;
7
8 class MStreamObs
9 {
10 public:
11 enum
12 {
13 EInit,
14 EPlay,
15 EWrite,
16 EClose,
17 };
18 virtual void Complete(TInt aState, TInt aError) = 0;
19 };
20
21 class MStreamProvider
22 {
23 public:
24 virtual TPtrC8 Data() = 0;
25 };
26
NONSHARABLE_CLASS(CStreamPlayer)27 NONSHARABLE_CLASS(CStreamPlayer) : public CBase, public MMdaAudioOutputStreamCallback
28 {
29 public:
30 CStreamPlayer(MStreamProvider& aProvider, MStreamObs& aObs);
31 ~CStreamPlayer();
32 void ConstructL();
33
34 static TInt ClosestSupportedRate(TInt aRate);
35
36 TInt OpenStream(TInt aRate, TInt aChannels, TUint32 aType = KMMFFourCCCodePCM16);
37
38 void SetVolume(TInt aNew);
39 TInt Volume() const;
40 TInt MaxVolume() const;
41
42 void Stop();
43 void Start();
44 void Open();
45 void Close();
46
47 TBool Playing() const;
48 TBool Closed() const;
49
50 private:
51
52 void MaoscOpenComplete(TInt aError) ;
53 void MaoscBufferCopied(TInt aError, const TDesC8& aBuffer);
54 void MaoscPlayComplete(TInt aError);
55
56 private:
57 void Request();
58 void SetCapsL();
59
60 private:
61 MStreamProvider& iProvider;
62 MStreamObs& iObs;
63 TInt iVolume;
64
65 CMdaAudioOutputStream* iStream;
66
67 TInt iRate;
68 TInt iChannels;
69 TUint32 iType;
70
71 enum
72 {
73 ENone = 0,
74 EInited = 0x1,
75 EStarted = 0x2,
76 EStopped = 0x4,
77 EVolumeChange = 0x8,
78 EDied = 0x10
79 };
80
81 TInt iState;
82 TBuf8<KSilenceBuffer> iSilence;
83 TPtrC8 iPtr;
84
85 };
86
87
88 #endif
89
90