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39 
40 #ifndef QOPENSLESAUDIOINPUT_H
41 #define QOPENSLESAUDIOINPUT_H
42 
43 #include <qaudiosystem.h>
44 #include <QTime>
45 #include <SLES/OpenSLES.h>
46 
47 #ifdef ANDROID
48 #include <SLES/OpenSLES_Android.h>
49 
50 #define QT_ANDROID_PRESET_MIC "mic"
51 #define QT_ANDROID_PRESET_CAMCORDER "camcorder"
52 #define QT_ANDROID_PRESET_VOICE_RECOGNITION "voicerecognition"
53 #define QT_ANDROID_PRESET_VOICE_COMMUNICATION "voicecommunication"
54 
55 #endif
56 
57 QT_BEGIN_NAMESPACE
58 
59 class QOpenSLESEngine;
60 class QIODevice;
61 class QBuffer;
62 
63 class QOpenSLESAudioInput : public QAbstractAudioInput
64 {
65     Q_OBJECT
66 
67 public:
68     QOpenSLESAudioInput(const QByteArray &device);
69     ~QOpenSLESAudioInput();
70 
71     void start(QIODevice *device);
72     QIODevice *start();
73     void stop();
74     void reset();
75     void suspend();
76     void resume();
77     int bytesReady() const;
78     int periodSize() const;
79     void setBufferSize(int value);
80     int bufferSize() const;
81     void setNotifyInterval(int milliSeconds);
82     int notifyInterval() const;
83     qint64 processedUSecs() const;
84     qint64 elapsedUSecs() const;
85     QAudio::Error error() const;
86     QAudio::State state() const;
87     void setFormat(const QAudioFormat &format);
88     QAudioFormat format() const;
89 
90     void setVolume(qreal volume);
91     qreal volume() const;
92 
93 public Q_SLOTS:
94     void processBuffer();
95 
96 private:
97     bool startRecording();
98     void stopRecording();
99     void writeDataToDevice(const char *data, int size);
100     void flushBuffers();
101 
102     QByteArray m_device;
103     QOpenSLESEngine *m_engine;
104     SLObjectItf m_recorderObject;
105     SLRecordItf m_recorder;
106 #ifdef ANDROID
107     SLuint32 m_recorderPreset;
108     SLAndroidSimpleBufferQueueItf m_bufferQueue;
109 #else
110     SLBufferQueueItf m_bufferQueue;
111 #endif
112 
113     bool m_pullMode;
114     qint64 m_processedBytes;
115     QIODevice *m_audioSource;
116     QBuffer *m_bufferIODevice;
117     QByteArray m_pushBuffer;
118     QAudioFormat m_format;
119     QAudio::Error m_errorState;
120     QAudio::State m_deviceState;
121     QTime m_clockStamp;
122     qint64 m_lastNotifyTime;
123     qreal m_volume;
124     int m_bufferSize;
125     int m_periodSize;
126     int m_intervalTime;
127     QByteArray *m_buffers;
128     int m_currentBuffer;
129 };
130 
131 QT_END_NAMESPACE
132 
133 #endif // QOPENSLESAUDIOINPUT_H
134