BlackBerry/QNX: Implement audio recording with QAudioInput

Change-Id: I62cad152a7b7fd92905744439de838306dc7a558 Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
2013-02-25 10:58:05 +01:00
parent 909a09069f
commit 6a83c20318
4 changed files with 593 additions and 2 deletions
--- a/src/plugins/qnx/audio/qnxaudioinput.h
+++ b/src/plugins/qnx/audio/qnxaudioinput.h
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QNXAUDIOINPUT_H
+#define QNXAUDIOINPUT_H
+
+#include "qaudiosystem.h"
+
+#include <QSocketNotifier>
+#include <QTime>
+#include <QTimer>
+
+#include <sys/asoundlib.h>
+
+QT_BEGIN_NAMESPACE
+
+class QnxAudioInput : public QAbstractAudioInput
+{
+    Q_OBJECT
+
+public:
+    QnxAudioInput();
+    ~QnxAudioInput();
+
+    void start(QIODevice*) Q_DECL_OVERRIDE;
+    QIODevice* start() Q_DECL_OVERRIDE;
+    void stop() Q_DECL_OVERRIDE;
+    void reset() Q_DECL_OVERRIDE;
+    void suspend() Q_DECL_OVERRIDE;
+    void resume() Q_DECL_OVERRIDE;
+    int bytesReady() const Q_DECL_OVERRIDE;
+    int periodSize() const Q_DECL_OVERRIDE;
+    void setBufferSize(int ) Q_DECL_OVERRIDE;
+    int bufferSize() const  Q_DECL_OVERRIDE;
+    void setNotifyInterval(int ) Q_DECL_OVERRIDE;
+    int notifyInterval() const Q_DECL_OVERRIDE;
+    qint64 processedUSecs() const Q_DECL_OVERRIDE;
+    qint64 elapsedUSecs() const Q_DECL_OVERRIDE;
+    QAudio::Error error() const Q_DECL_OVERRIDE;
+    QAudio::State state() const Q_DECL_OVERRIDE;
+    void setFormat(const QAudioFormat&) Q_DECL_OVERRIDE;
+    QAudioFormat format() const Q_DECL_OVERRIDE;
+    void setVolume(qreal) Q_DECL_OVERRIDE;
+    qreal volume() const Q_DECL_OVERRIDE;
+
+private slots:
+    void userFeed();
+    bool deviceReady();
+
+private:
+    friend class InputPrivate;
+
+    bool open();
+    void close();
+    qint64 read(char *data, qint64 len);
+    void setError(QAudio::Error error);
+    void setState(QAudio::State state);
+
+    QTime m_timeStamp;
+    QTime m_clockStamp;
+    QAudioFormat m_format;
+
+    QIODevice *m_audioSource;
+    snd_pcm_t *m_pcmHandle;
+    QSocketNotifier *m_pcmNotifier;
+
+    QAudio::Error m_error;
+    QAudio::State m_state;
+
+    qint64 m_bytesRead;
+    qint64 m_elapsedTimeOffset;
+    qint64 m_totalTimeValue;
+
+    qreal m_volume;
+
+    int m_bytesAvailable;
+    int m_bufferSize;
+    int m_periodSize;
+    int m_intervalTime;
+
+    bool m_pullMode;
+};
+
+class InputPrivate : public QIODevice
+{
+    Q_OBJECT
+public:
+    InputPrivate(QnxAudioInput *audio);
+
+    qint64 readData(char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
+
+    void trigger();
+
+private:
+    QnxAudioInput *m_audioDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif