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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 | |
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 | |