1 /* |
|
2 * Copyright (c) 2010 Ixonos Plc. |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of the "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - Initial contribution |
|
11 * |
|
12 * Contributors: |
|
13 * Ixonos Plc |
|
14 * |
|
15 * Description: |
|
16 * |
|
17 */ |
|
18 |
|
19 |
|
20 |
|
21 #include "ProcVisualizationAO.h" |
|
22 #include "ProcVisProcessor.h" |
|
23 #include "AudPanic.h" |
|
24 |
|
25 |
|
26 void CProcVisualizationAO::RunL() |
|
27 { |
|
28 __ASSERT_DEBUG(iProcVisProcessor != 0, TAudPanic::Panic(TAudPanic::EInternal)); |
|
29 __ASSERT_DEBUG(iObserver != 0, TAudPanic::Panic(TAudPanic::EInternal)); |
|
30 |
|
31 if(iVisualizationState == EProcVisualizationIdle) |
|
32 { |
|
33 TAudPanic::Panic(TAudPanic::EInternal); |
|
34 } |
|
35 |
|
36 else if (iVisualizationState == EProcGettingClipVisualization) |
|
37 { |
|
38 |
|
39 TBool completed = EFalse; |
|
40 TInt progress = 0; |
|
41 TRAPD(err, completed = iProcVisProcessor->VisualizeClipPieceL(progress)); |
|
42 |
|
43 if (err != KErrNone) |
|
44 { |
|
45 delete iProcVisProcessor; |
|
46 iProcVisProcessor = 0; |
|
47 |
|
48 MAudVisualizationObserver* observer = iObserver; |
|
49 iObserver = 0; |
|
50 iSize = 0; |
|
51 iVisualizationState = EProcVisualizationIdle; |
|
52 observer->NotifyClipInfoVisualizationCompleted(*iClipInfo, err, NULL, 0); |
|
53 } |
|
54 else if (completed) |
|
55 { |
|
56 TInt8* visualization = 0; |
|
57 TInt size = 0; |
|
58 TRAPD(err2, iProcVisProcessor->GetFinalVisualizationL(visualization, size)); |
|
59 |
|
60 if (err2 != KErrNone) |
|
61 { |
|
62 MAudVisualizationObserver* observer = iObserver; |
|
63 iObserver = 0; |
|
64 |
|
65 if (visualization != 0) delete[] visualization; |
|
66 delete iProcVisProcessor; |
|
67 iProcVisProcessor = 0; |
|
68 iVisualizationState = EProcVisualizationIdle; |
|
69 |
|
70 observer->NotifyClipInfoVisualizationCompleted(*iClipInfo, err2, 0, 0); |
|
71 return; |
|
72 } |
|
73 |
|
74 delete iProcVisProcessor; |
|
75 iProcVisProcessor = 0; |
|
76 |
|
77 MAudVisualizationObserver* observer = iObserver; |
|
78 iObserver = 0; |
|
79 iSize = 0; |
|
80 iVisualizationState = EProcVisualizationIdle; |
|
81 |
|
82 // NOTE: the upper level application is responsible for releasing "visualization" |
|
83 observer->NotifyClipInfoVisualizationCompleted(*iClipInfo, KErrNone, visualization, size); |
|
84 } |
|
85 else |
|
86 { |
|
87 |
|
88 // progress is sent every 1 percent |
|
89 if (iPreviousProgressValue < progress) |
|
90 { |
|
91 iObserver->NotifyClipInfoVisualizationProgressed(*iClipInfo, progress); |
|
92 iPreviousProgressValue = progress; |
|
93 } |
|
94 |
|
95 SetActive(); |
|
96 TRequestStatus* status = &iStatus; |
|
97 User::RequestComplete(status, KErrNone); |
|
98 } |
|
99 |
|
100 } |
|
101 } |
|
102 |
|
103 void CProcVisualizationAO::DoCancel() |
|
104 { |
|
105 |
|
106 // ref to observer should be reset before callback to avoid recursion |
|
107 MAudVisualizationObserver* observer = iObserver; |
|
108 iObserver = 0; |
|
109 // ref to clipInfo is good to reset before callback |
|
110 const CAudClipInfo* clipInfo = iClipInfo; |
|
111 iClipInfo = 0; |
|
112 // processor not needed and should not exist any more; a new processor will be created for next visualization |
|
113 delete iProcVisProcessor; |
|
114 iProcVisProcessor = 0; |
|
115 |
|
116 if ((observer != 0) && (iVisualizationState == EProcGettingClipVisualization)) |
|
117 { |
|
118 // reset state |
|
119 iVisualizationState = EProcVisualizationIdle; |
|
120 |
|
121 // note! this callback at least at the time of writing deletes this object => no operations should be done after this call |
|
122 observer->NotifyClipInfoVisualizationCompleted(*clipInfo, KErrCancel, 0, 0); |
|
123 } |
|
124 } |
|
125 |
|
126 CProcVisualizationAO* CProcVisualizationAO::NewL() |
|
127 { |
|
128 CProcVisualizationAO* self = new (ELeave) CProcVisualizationAO(); |
|
129 CleanupStack::PushL(self); |
|
130 self->ConstructL(); |
|
131 CleanupStack::Pop(self); |
|
132 return self; |
|
133 } |
|
134 |
|
135 CProcVisualizationAO::~CProcVisualizationAO() |
|
136 { |
|
137 // cancel the active object; it also deletes or resets member variables |
|
138 Cancel(); |
|
139 } |
|
140 |
|
141 |
|
142 void CProcVisualizationAO::ConstructL() |
|
143 { |
|
144 // nothing to do; iProcVisProcessor will be created when started |
|
145 } |
|
146 |
|
147 CProcVisualizationAO::CProcVisualizationAO() : |
|
148 CActive(0), |
|
149 iVisualizationState(EProcVisualizationIdle) |
|
150 { |
|
151 |
|
152 CActiveScheduler::Add(this); |
|
153 |
|
154 } |
|
155 |
|
156 void CProcVisualizationAO::StartClipVisualizationL(const CAudClipInfo* aClipInfo, TInt aSize, |
|
157 MAudVisualizationObserver& aObserver, |
|
158 TInt aPriority) |
|
159 { |
|
160 |
|
161 if (iVisualizationState != EProcVisualizationIdle || iClipInfo != 0) |
|
162 { |
|
163 TAudPanic::Panic(TAudPanic::EVisualizationProcessAlreadyRunning); |
|
164 } |
|
165 |
|
166 iSize = aSize; |
|
167 iClipInfo = aClipInfo; |
|
168 iProcVisProcessor = CProcVisProcessor::NewL(); |
|
169 |
|
170 iPreviousProgressValue = 0; |
|
171 |
|
172 |
|
173 TRAPD(err, iProcVisProcessor->VisualizeClipL(aClipInfo, aSize)); |
|
174 |
|
175 if (err != KErrNone) |
|
176 { |
|
177 delete iProcVisProcessor; |
|
178 iProcVisProcessor = 0; |
|
179 aObserver.NotifyClipInfoVisualizationCompleted(*aClipInfo, err, 0, 0); |
|
180 User::Leave(err); |
|
181 } |
|
182 |
|
183 aObserver.NotifyClipInfoVisualizationStarted(*aClipInfo, KErrNone); |
|
184 |
|
185 iObserver = &aObserver; |
|
186 |
|
187 SetPriority(aPriority); |
|
188 SetActive(); |
|
189 TRequestStatus* status = &iStatus; |
|
190 User::RequestComplete(status, KErrNone); |
|
191 |
|
192 iVisualizationState = EProcGettingClipVisualization; |
|
193 |
|
194 } |
|
195 |
|
196 |
|
197 |
|
198 |
|
199 void CProcVisualizationAO::CancelVisualization() |
|
200 { |
|
201 Cancel(); |
|
202 } |
|
203 |
|