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<h1>AudioMixerControlLinux.h</h1><a href="_audio_mixer_control_linux_8h.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 <span class="comment">/*  audiodevs: Abstraction layer for audio hardware &amp; samples</span>
00002 <span class="comment">    Copyright (C) 2003-2004 Nemosoft Unv.</span>
00003 <span class="comment"></span>
00004 <span class="comment">    This program is free software; you can redistribute it and/or modify</span>
00005 <span class="comment">    it under the terms of the GNU General Public License as published by</span>
00006 <span class="comment">    the Free Software Foundation; either version 2 of the License, or</span>
00007 <span class="comment">    (at your option) any later version.</span>
00008 <span class="comment"></span>
00009 <span class="comment">    This program is distributed in the hope that it will be useful,</span>
00010 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00011 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
00012 <span class="comment">    GNU General Public License for more details.</span>
00013 <span class="comment"></span>
00014 <span class="comment">    You should have received a copy of the GNU General Public License</span>
00015 <span class="comment">    along with this program; if not, write to the Free Software</span>
00016 <span class="comment">    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA</span>
00017 <span class="comment"></span>
00018 <span class="comment">    For questions, remarks, patches, etc. for this program, the author can be</span>
00019 <span class="comment">    reached at camstream@smcc.demon.nl.</span>
00020 <span class="comment">*/</span>
00021 <span class="preprocessor">#ifndef AUDIODEVICEMIXER_HPP</span>
00022 <span class="preprocessor"></span><span class="preprocessor">#define AUDIODEVICEMIXER_HPP</span>
00023 <span class="preprocessor"></span>
00024 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span>
00026 <span class="preprocessor">#endif</span>
00027 <span class="preprocessor"></span>
00028 <span class="preprocessor">#include &lt;qbuttongroup.h&gt;</span>
00029 <span class="preprocessor">#include &lt;qcheckbox.h&gt;</span>
00030 <span class="preprocessor">#include &lt;qcombobox.h&gt;</span>
00031 <span class="preprocessor">#include &lt;qdict.h&gt;</span>
00032 <span class="preprocessor">#include &lt;qdom.h&gt;</span>
00033 <span class="preprocessor">#include &lt;qgrid.h&gt;</span>
00034 <span class="preprocessor">#include &lt;qobject.h&gt;</span>
00035 <span class="preprocessor">#include &lt;qlabel.h&gt;</span>
00036 <span class="preprocessor">#include &lt;qlayout.h&gt;</span>
00037 <span class="preprocessor">#include &lt;qradiobutton.h&gt;</span>
00038 <span class="preprocessor">#include &lt;qscrollview.h&gt;</span>
00039 <span class="preprocessor">#include &lt;qslider.h&gt;</span>
00040 <span class="preprocessor">#include &lt;qsocket.h&gt;</span>
00041 <span class="preprocessor">#include &lt;qvector.h&gt;</span>
00042 <span class="preprocessor">#include &lt;qwidget.h&gt;</span>
00043 
00044 <span class="preprocessor">#if (QT_VERSION &gt;= 0x030000)</span>
00045 <span class="preprocessor"></span><span class="preprocessor">#include &lt;qmutex.h&gt;</span>
00046 <span class="preprocessor">#endif</span>
00047 <span class="preprocessor"></span>
<a name="l00048"></a><a class="code" href="_audio_mixer_control_linux_8h.html#a0">00048</a> <span class="preprocessor">#define ALSA_PCM_NEW_HW_PARAMS_API</span>
<a name="l00049"></a><a class="code" href="_audio_mixer_control_linux_8h.html#a1">00049</a> <span class="preprocessor"></span><span class="preprocessor">#define ALSA_PCM_NEW_SW_PARAMS_API</span>
00050 <span class="preprocessor"></span><span class="preprocessor">#include &lt;alsa/asoundlib.h&gt;</span>
00051 
<a name="l00052"></a><a class="code" href="class_c_audio_control_scroll_widget.html">00052</a> <span class="keyword">class </span><a class="code" href="class_c_audio_control_scroll_widget.html">CAudioControlScrollWidget</a>: <span class="keyword">public</span> QScrollView
00053 {
00054 <span class="keyword">protected</span>:
00055    <span class="keywordtype">void</span> <a class="code" href="class_c_audio_control_scroll_widget.html#b0">viewportResizeEvent</a>(QResizeEvent *e);
00056 
00057 <span class="keyword">public</span>:
<a name="l00058"></a><a class="code" href="class_c_audio_control_scroll_widget.html#o0">00058</a>    QWidget *<a class="code" href="class_c_audio_control_scroll_widget.html#o0">m_pCanvas</a>;
<a name="l00059"></a><a class="code" href="class_c_audio_control_scroll_widget.html#o1">00059</a>    QGridLayout *<a class="code" href="class_c_audio_control_scroll_widget.html#o1">m_pGrid</a>;
00060 
<a name="l00061"></a><a class="code" href="class_c_audio_control_scroll_widget.html#o2">00061</a>    QVector &lt;QButtonGroup&gt; <a class="code" href="class_c_audio_control_scroll_widget.html#o2">m_CaptureGroups</a>;
00062 
00063    <a class="code" href="class_c_audio_control_scroll_widget.html">CAudioControlScrollWidget</a>(QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0, WFlags f = 0);
00064 
00065    <span class="keywordtype">void</span> <a class="code" href="class_c_audio_control_scroll_widget.html#a1">SetSize</a>();
00066 };
00067 
<a name="l00068"></a><a class="code" href="class_c_audio_mixer_element.html">00068</a> <span class="keyword">class </span><a class="code" href="class_c_audio_mixer_element.html">CAudioMixerElement</a>: <span class="keyword">public</span> QObject
00069 {
00070    Q_OBJECT
00071 <span class="keyword">private</span>:
00072    <span class="keyword">enum</span> ControlType { Unknown, Playback, Capture, PlaybackCapture, Switch, Enumeration };
00073 
00074    ControlType m_SliderType;
00075    snd_mixer_t *m_pMixer;
00076    snd_mixer_selem_id_t *m_pSID;
00077 
00078    <span class="keywordtype">int</span> m_ChannelMask, m_ChannelCount;
00079    snd_mixer_selem_channel_id_t m_Channels[SND_MIXER_SCHN_LAST + 1];
00080 
00081    <span class="comment">// column 0</span>
00082    QString m_Name;
00083 
00084    <span class="comment">// column 1</span>
00085    <span class="keywordtype">bool</span> m_PlaybackMono;
00086    <span class="keywordtype">bool</span> m_PlaybackSwitch;
00087    <span class="keywordtype">bool</span> m_PlaybackSwitchIsMute;
00088    <span class="keywordtype">bool</span> m_PlaybackVolumeJoined, m_PlaybackSwitchJoined;
00089    QSlider *m_pPlaybackSlider[SND_MIXER_SCHN_LAST + 1];
00090    QComboBox *m_pDropdownBox;
00091 
00092    <span class="comment">// column 2</span>
00093    QCheckBox *m_pPlaybackCheckBox;
00094 
00095    <span class="comment">// column 3</span>
00096    <span class="keywordtype">bool</span> m_CaptureMono;
00097    <span class="keywordtype">bool</span> m_CaptureSwitch;
00098    <span class="keywordtype">bool</span> m_CaptureVolumeJoined, m_CaptureSwitchJoined;
00099    <span class="keywordtype">bool</span> m_CaptureExclusive;
00100    <span class="keywordtype">int</span> m_CaptureGroup;
00101    QSlider *m_pCaptureSlider;
00102 
00103    <span class="comment">// column 4</span>
00104    QRadioButton *m_pCaptureRadioButton; <span class="comment">// only one of these two is used</span>
00105    QCheckBox *m_pCaptureCheckBox;
00106 
00107 
00108 <span class="keyword">private</span> slots:
00109    <span class="keywordtype">void</span> MovedCaptureVolume(<span class="keywordtype">int</span>);
00110    <span class="keywordtype">void</span> MovedPlaybackVolume(<span class="keywordtype">int</span>);
00111    <span class="keywordtype">void</span> ChangedEnumerationSelection(<span class="keywordtype">int</span>);
00112    <span class="keywordtype">void</span> ToggledSwitch(<span class="keywordtype">bool</span>);
00113    <span class="keywordtype">void</span> ToggledCapture(<span class="keywordtype">int</span>);
00114 
00115 <span class="keyword">public</span>:
00116    <a class="code" href="class_c_audio_mixer_element.html">CAudioMixerElement</a>(snd_mixer_t *mixer, snd_mixer_elem_t *elem, <span class="keywordtype">int</span> row, <a class="code" href="class_c_audio_control_scroll_widget.html">CAudioControlScrollWidget</a> *parent);
00117    <a class="code" href="class_c_audio_mixer_element.html#a1">~CAudioMixerElement</a>();
00118 
<a name="l00119"></a><a class="code" href="class_c_audio_mixer_element.html#a2">00119</a>    <span class="keyword">const</span> QString &amp;<a class="code" href="class_c_audio_mixer_element.html#a2">GetName</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_Name; };
00120    <span class="keywordtype">void</span> GetConfiguration(QDomNode &amp;dom_node) <span class="keyword">const</span>;
00121    <span class="keywordtype">void</span> SetConfiguration(<span class="keyword">const</span> QDomNode &amp;dom_node) <span class="keyword">const</span>;
00122 
00123    <span class="keywordtype">int</span> <a class="code" href="class_c_audio_mixer_element.html#a5">GetCaptureGroup</a>() const;
00124 
00125 public slots:
00126    <span class="keywordtype">void</span> UpdateFromDevice();
00127 
00128 signals:
00129    <span class="keywordtype">void</span> UserClickedSomething();
00130 };
00131 
00132 
00133 
00134 
<a name="l00135"></a><a class="code" href="class_c_audio_control_linux.html">00135</a> class <a class="code" href="class_c_audio_control_linux.html">CAudioControlLinux</a>: public QObject
00136 {
00137    Q_OBJECT
00138 <span class="keyword">private</span>:
00139    QString m_DeviceName;
00140    snd_mixer_t *m_pMixer;
00141    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_Count;
00142    QDict&lt;CAudioMixerElement&gt; m_Elements;
00143    QWidget *m_pMixerWidget;
00144    <a class="code" href="class_c_audio_control_scroll_widget.html">CAudioControlScrollWidget</a> *m_pScrollWidget;
00145 
00146    <span class="keywordtype">int</span> m_PollFDCount;
00147    <span class="keyword">struct </span>pollfd *m_pPollFDs;
00148    QVector&lt;QSocket&gt; m_Sockets;
00149 
00150 <span class="keyword">private</span> slots:
00151    <span class="keywordtype">void</span> SocketRead();
00152 
00153 <span class="keyword">protected</span>:
00154 
00155 <span class="keyword">public</span>:
00156    <a class="code" href="class_c_audio_control_linux.html">CAudioControlLinux</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *device);
00157    ~<a class="code" href="class_c_audio_control_linux.html">CAudioControlLinux</a>();
00158 
00159    <span class="keywordtype">void</span> GetConfiguration(QDomNode &amp;dom_node) <span class="keyword">const</span>;
00160    <span class="keywordtype">void</span> SetConfiguration(<span class="keyword">const</span> QDomNode &amp;dom_node);
00161 
00162 <span class="keyword">public</span> slots:
00163    <span class="keywordtype">void</span> ShowControls();
00164 
00165 signals:
00166    <span class="keywordtype">void</span> ForceUpdate(); 
00167 
00168    <span class="keywordtype">void</span> UpdateControls(); 
00169 };
00170 
00171 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Wed Dec 13 23:38:46 2006 for CamStream by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.7 </small></address>
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