Audio decoder example.

Change-Id: I0f9fb755ef8bc6f66696a06996ac7a9f13de69cc
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

examples/audiodecoder/main.cpp

@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/QCoreApplication>
+#include <QTextStream>
+#include <iostream>
+
+#include <qfileinfo.h>
+#include <qdir.h>
+#include "audiodecoder.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication app(argc, argv);
+
+    QTextStream cout(stdout, QIODevice::WriteOnly);
+    if (app.arguments().size() < 2) {
+        cout << "Usage: audiodecoder [-p] [-pd] SOURCEFILE [TARGETFILE]" << endl;
+        cout << "Set -p option if you want to play output file." << endl;
+        cout << "Set -pd option if you want to play output file and delete it after successful playback." << endl;
+        cout << "Default TARGETFILE name is \"out.wav\" in the same directory as the source file." << endl;
+        return 0;
+    }
+
+    bool isPlayback = false;
+    bool isDelete = false;
+
+    if (app.arguments().at(1) == "-p")
+        isPlayback = true;
+    else if (app.arguments().at(1) == "-pd") {
+        isPlayback = true;
+        isDelete = true;
+    }
+
+    QFileInfo sourceFile;
+    QFileInfo targetFile;
+
+    int sourceFileIndex = (isPlayback || isDelete) ? 2 : 1;
+    if (app.arguments().size() <= sourceFileIndex) {
+        cout << "Error: source filename is not specified." << endl;
+        return 0;
+    }
+    sourceFile.setFile(app.arguments().at(sourceFileIndex));
+    if (app.arguments().size() > sourceFileIndex + 1)
+        targetFile.setFile(app.arguments().at(sourceFileIndex + 1));
+    else
+        targetFile.setFile(sourceFile.dir().absoluteFilePath("out.wav"));
+
+    AudioDecoder decoder(isPlayback, isDelete);
+    QObject::connect(&decoder, SIGNAL(done()), &app, SLOT(quit()));
+    decoder.setSourceFilename(sourceFile.absoluteFilePath());
+    decoder.setTargetFilename(targetFile.absoluteFilePath());
+    decoder.start();
+
+    return app.exec();
+};