1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the documentation of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 //! [snippet]

    43 QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args)

    44 {

    45     switch (c) {

    46     case MediaObjectClass:

    47         return new MediaObject(parent);

    48     case VolumeFaderEffectClass:

    49         return new VolumeFaderEffect(parent);

    50     case AudioOutputClass:

    51         return new AudioOutput(parent);

    52     case AudioDataOutputClass:

    53         return new AudioDataOutput(parent);

    54     case VisualizationClass:

    55         return new Visualization(parent);

    56     case VideoDataOutputClass:

    57         return new VideoDataOutput(parent);

    58     case EffectClass:

    59         return new Effect(args[0].toInt(), parent);

    60     case VideoWidgetClass:

    61         return new VideoWidget(qobject_cast<QWidget *>(parent));

    62     }

    63     return 0;

    64 }

    65 

    66 QSet<int> Backend::objectDescriptionIndexes(ObjectDescriptionType type) const

    67 {

    68     QSet<int> set;

    69     switch(type)

    70     {

    71     case Phonon::AudioOutputDeviceType:

    72         // use AudioDeviceEnumerator to list ALSA and OSS devices

    73         set << 10000 << 10001;

    74         break;

    75     case Phonon::AudioCaptureDeviceType:

    76         set << 20000 << 20001;

    77         break;

    78     case Phonon::VideoOutputDeviceType:

    79         break;

    80     case Phonon::VideoCaptureDeviceType:

    81         set << 30000 << 30001;

    82         break;

    83     case Phonon::VisualizationType:

    84     case Phonon::AudioCodecType:

    85     case Phonon::VideoCodecType:

    86     case Phonon::ContainerFormatType:

    87         break;

    88     case Phonon::EffectType:

    89         set << 0x7F000001;

    90         break;

    91     }

    92     return set;

    93 }

    94 

    95 QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(ObjectDescriptionType type, int index) const

    96 {

    97     QHash<QByteArray, QVariant> ret;

    98     switch (type) {

    99     case Phonon::AudioOutputDeviceType:

   100         switch (index) {

   101         case 10000:

   102             ret.insert("name", QLatin1String("internal Soundcard"));

   103             break;

   104         case 10001:

   105             ret.insert("name", QLatin1String("USB Headset"));

   106             ret.insert("icon", KIcon("usb-headset"));

   107             ret.insert("available", false);

   108             break;

   109         }

   110         break;

   111     case Phonon::AudioCaptureDeviceType:

   112         switch (index) {

   113         case 20000:

   114             ret.insert("name", QLatin1String("Soundcard"));

   115             ret.insert("description", QLatin1String("first description"));

   116             break;

   117         case 20001:

   118             ret.insert("name", QLatin1String("DV"));

   119             ret.insert("description", QLatin1String("second description"));

   120             break;

   121         }

   122         break;

   123     case Phonon::VideoOutputDeviceType:

   124         break;

   125     case Phonon::VideoCaptureDeviceType:

   126         switch (index) {

   127         case 30000:

   128             ret.insert("name", QLatin1String("USB Webcam"));

   129             ret.insert("description", QLatin1String("first description"));

   130             break;

   131         case 30001:

   132             ret.insert("name", QLatin1String("DV"));

   133             ret.insert("description", QLatin1String("second description"));

   134             break;

   135         }

   136         break;

   137     case Phonon::VisualizationType:

   138         break;

   139     case Phonon::AudioCodecType:

   140         break;

   141     case Phonon::VideoCodecType:

   142         break;

   143     case Phonon::ContainerFormatType:

   144         break;

   145     case Phonon::EffectType:

   146         switch (index) {

   147         case 0x7F000001:

   148             ret.insert("name", QLatin1String("Delay"));

   149             ret.insert("description", QLatin1String("Simple delay effect with time, feedback and level controls."));

   150             break;

   151         }

   152         break;

   153     }

   154     return ret;

   155 }

   156 //! [snippet]