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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Mobility Components. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "qmediastreamscontrol.h" |
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43 #include "qmediacontrol_p.h" |
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44 |
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45 QTM_BEGIN_NAMESPACE |
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46 |
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47 /*! |
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48 \class QMediaStreamsControl |
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49 \preliminary |
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50 \ingroup multimedia-serv |
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51 \brief The QMediaStreamsControl class provides a media stream selection control. |
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52 |
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53 \ingroup multimedia |
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54 |
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55 The QMediaStreamsControl class provides descriptions of the available media streams |
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56 and allows individual streams to be activated and deactivated. |
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57 |
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58 The interface name of QMediaStreamsControl is \c com.nokia.Qt.MediaStreamsControl as |
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59 defined in QMediaStreamsControl_iid. |
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60 |
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61 \sa QMediaService::control() |
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62 */ |
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63 |
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64 /*! |
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65 \macro QMediaStreamsControl_iid |
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66 |
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67 \c com.nokia.Qt.MediaStreamsControl |
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68 |
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69 Defines the interface name of the QMediaStreamsControl class. |
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70 |
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71 \relates QMediaStreamsControl |
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72 */ |
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73 |
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74 /*! |
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75 Constructs a new media streams control with the given \a parent. |
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76 */ |
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77 QMediaStreamsControl::QMediaStreamsControl(QObject *parent) |
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78 :QMediaControl(*new QMediaControlPrivate, parent) |
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79 { |
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80 } |
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81 |
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82 /*! |
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83 Destroys a media streams control. |
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84 */ |
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85 QMediaStreamsControl::~QMediaStreamsControl() |
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86 { |
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87 } |
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88 |
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89 /*! |
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90 \enum QMediaStreamsControl::StreamType |
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91 |
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92 Media stream type. |
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93 |
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94 \value AudioStream Audio stream. |
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95 \value VideoStream Video stream. |
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96 \value SubPictureStream Subpicture or teletext stream. |
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97 \value UnknownStream The stream type is unknown. |
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98 \value DataStream |
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99 */ |
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100 |
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101 /*! |
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102 \fn QMediaStreamsControl::streamCount() |
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103 |
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104 Returns the number of media streams. |
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105 */ |
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106 |
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107 /*! |
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108 \fn QMediaStreamsControl::streamType(int stream) |
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109 |
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110 Return the type of a media \a stream. |
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111 */ |
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112 |
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113 /*! |
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114 \fn QMediaStreamsControl::metaData(int stream, QtMedia::MetaData key) |
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115 |
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116 Returns the meta-data value of \a key for a given \a stream. |
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117 |
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118 Useful metadata keya are QtMedia::Title, QtMedia::Description and QtMedia::Language. |
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119 */ |
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120 |
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121 /*! |
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122 \fn QMediaStreamsControl::isActive(int stream) |
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123 |
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124 Returns true if the media \a stream is active. |
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125 */ |
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126 |
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127 /*! |
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128 \fn QMediaStreamsControl::setActive(int stream, bool state) |
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129 |
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130 Sets the active \a state of a media \a stream. |
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131 |
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132 Setting the active state of a media stream to true will activate it. If any other stream |
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133 of the same type was previously active it will be deactivated. Setting the active state fo a |
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134 media stream to false will deactivate it. |
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135 */ |
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136 |
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137 /*! |
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138 \fn QMediaStreamsControl::streamsChanged() |
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139 |
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140 The signal is emited when the available streams list is changed. |
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141 */ |
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142 |
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143 /*! |
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144 \fn QMediaStreamsControl::activeStreamsChanged() |
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145 |
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146 The signal is emited when the active streams list is changed. |
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147 */ |
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148 |
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149 #include "moc_qmediastreamscontrol.cpp" |
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150 QTM_END_NAMESPACE |
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151 |