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<h1>AsyncAudioPacer.h</h1><a href="AsyncAudioPacer_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00028"></a>00028 <span class="preprocessor">#ifndef AUDIO_PACER_INCLUDED</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#define AUDIO_PACER_INCLUDED</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="comment">/****************************************************************************</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * System Includes</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> ****************************************************************************/</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#include <sigc++/sigc++.h></span>
<a name="l00039"></a>00039
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="comment">/****************************************************************************</span>
<a name="l00042"></a>00042 <span class="comment"> *</span>
<a name="l00043"></a>00043 <span class="comment"> * Project Includes</span>
<a name="l00044"></a>00044 <span class="comment"> *</span>
<a name="l00045"></a>00045 <span class="comment"> ****************************************************************************/</span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="preprocessor">#include <<a class="code" href="AsyncAudioSink_8h.html" title="This file contains the base class for an audio sink.">AsyncAudioSink.h</a>></span>
<a name="l00048"></a>00048 <span class="preprocessor">#include <<a class="code" href="AsyncAudioSource_8h.html" title="This file contains the base class for an audio source.">AsyncAudioSource.h</a>></span>
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">/****************************************************************************</span>
<a name="l00052"></a>00052 <span class="comment"> *</span>
<a name="l00053"></a>00053 <span class="comment"> * Local Includes</span>
<a name="l00054"></a>00054 <span class="comment"> *</span>
<a name="l00055"></a>00055 <span class="comment"> ****************************************************************************/</span>
<a name="l00056"></a>00056
<a name="l00057"></a>00057
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="comment">/****************************************************************************</span>
<a name="l00060"></a>00060 <span class="comment"> *</span>
<a name="l00061"></a>00061 <span class="comment"> * Forward declarations</span>
<a name="l00062"></a>00062 <span class="comment"> *</span>
<a name="l00063"></a>00063 <span class="comment"> ****************************************************************************/</span>
<a name="l00064"></a>00064
<a name="l00065"></a>00065
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">/****************************************************************************</span>
<a name="l00068"></a>00068 <span class="comment"> *</span>
<a name="l00069"></a>00069 <span class="comment"> * Namespace</span>
<a name="l00070"></a>00070 <span class="comment"> *</span>
<a name="l00071"></a>00071 <span class="comment"> ****************************************************************************/</span>
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keyword">namespace </span>Async
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="comment">/****************************************************************************</span>
<a name="l00078"></a>00078 <span class="comment"> *</span>
<a name="l00079"></a>00079 <span class="comment"> * Forward declarations of classes inside of the declared namespace</span>
<a name="l00080"></a>00080 <span class="comment"> *</span>
<a name="l00081"></a>00081 <span class="comment"> ****************************************************************************/</span>
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keyword">class </span>Timer;
<a name="l00084"></a>00084
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">/****************************************************************************</span>
<a name="l00087"></a>00087 <span class="comment"> *</span>
<a name="l00088"></a>00088 <span class="comment"> * Defines & typedefs</span>
<a name="l00089"></a>00089 <span class="comment"> *</span>
<a name="l00090"></a>00090 <span class="comment"> ****************************************************************************/</span>
<a name="l00091"></a>00091
<a name="l00092"></a>00092
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">/****************************************************************************</span>
<a name="l00095"></a>00095 <span class="comment"> *</span>
<a name="l00096"></a>00096 <span class="comment"> * Exported Global Variables</span>
<a name="l00097"></a>00097 <span class="comment"> *</span>
<a name="l00098"></a>00098 <span class="comment"> ****************************************************************************/</span>
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="comment">/****************************************************************************</span>
<a name="l00103"></a>00103 <span class="comment"> *</span>
<a name="l00104"></a>00104 <span class="comment"> * Class definitions</span>
<a name="l00105"></a>00105 <span class="comment"> *</span>
<a name="l00106"></a>00106 <span class="comment"> ****************************************************************************/</span>
<a name="l00107"></a>00107
<a name="l00115"></a><a class="code" href="classAsync_1_1AudioPacer.html">00115</a> <span class="keyword">class </span><a class="code" href="classAsync_1_1AudioPacer.html" title="An audio pipe class that pace audio output.">AudioPacer</a> : <span class="keyword">public</span> <a class="code" href="classAsync_1_1AudioSink.html" title="The base class for an audio sink.">AudioSink</a>, <span class="keyword">public</span> <a class="code" href="classAsync_1_1AudioSource.html" title="The base class for an audio source.">AudioSource</a>, <span class="keyword">public</span> SigC::Object
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 <span class="keyword">public</span>:
<a name="l00124"></a>00124 <a class="code" href="classAsync_1_1AudioPacer.html#a0b8ace0c3986757c94d4c4c5fc75b044" title="Constuctor.">AudioPacer</a>(<span class="keywordtype">int</span> sample_rate, <span class="keywordtype">int</span> block_size, <span class="keywordtype">int</span> prebuf_time);
<a name="l00125"></a>00125
<a name="l00129"></a>00129 <a class="code" href="classAsync_1_1AudioPacer.html#ab4970e79ce5d8f30d7c6dd2893daa7e2" title="Destructor.">~AudioPacer</a>(<span class="keywordtype">void</span>);
<a name="l00130"></a>00130
<a name="l00142"></a>00142 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classAsync_1_1AudioPacer.html#a8e22bd32dc5554311fe302d661c17cc8" title="Write samples into this audio sink.">writeSamples</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *samples, <span class="keywordtype">int</span> count);
<a name="l00143"></a>00143
<a name="l00152"></a>00152 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classAsync_1_1AudioPacer.html#a541d3c29ccd9e0db563f93a5bc666abd" title="Tell the sink to flush the previously written samples.">flushSamples</a>(<span class="keywordtype">void</span>);
<a name="l00153"></a>00153
<a name="l00161"></a>00161 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classAsync_1_1AudioPacer.html#a1ef0821e8a2e5b42772d7873ecb027af" title="Resume audio output to the sink.">resumeOutput</a>(<span class="keywordtype">void</span>);
<a name="l00162"></a>00162
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="keyword">protected</span>:
<a name="l00173"></a>00173 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classAsync_1_1AudioPacer.html#a7abb7e35757c80527a145a483a025c4c" title="The registered sink has flushed all samples.">allSamplesFlushed</a>(<span class="keywordtype">void</span>);
<a name="l00174"></a>00174
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keyword">private</span>:
<a name="l00177"></a>00177 <span class="keywordtype">int</span> sample_rate;
<a name="l00178"></a>00178 <span class="keywordtype">int</span> buf_size;
<a name="l00179"></a>00179 <span class="keywordtype">int</span> prebuf_time;
<a name="l00180"></a>00180 <span class="keywordtype">float</span> *buf;
<a name="l00181"></a>00181 <span class="keywordtype">int</span> buf_pos;
<a name="l00182"></a>00182 <span class="keywordtype">int</span> prebuf_samples;
<a name="l00183"></a>00183 <a class="code" href="classAsync_1_1Timer.html" title="A class that produces timer events.">Async::Timer</a> *pace_timer;
<a name="l00184"></a>00184 <span class="keywordtype">bool</span> do_flush;
<a name="l00185"></a>00185 <span class="keywordtype">bool</span> input_stopped;
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">void</span> outputNextBlock(<a class="code" href="classAsync_1_1Timer.html" title="A class that produces timer events.">Async::Timer</a> *t=0);
<a name="l00188"></a>00188
<a name="l00189"></a>00189 }; <span class="comment">/* class AudioPacer */</span>
<a name="l00190"></a>00190
<a name="l00191"></a>00191
<a name="l00192"></a>00192 } <span class="comment">/* namespace */</span>
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="preprocessor">#endif </span><span class="comment">/* AUDIO_PACER_INCLUDED */</span>
<a name="l00195"></a>00195
<a name="l00196"></a>00196
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="comment">/*</span>
<a name="l00199"></a>00199 <span class="comment"> * This file has not been truncated</span>
<a name="l00200"></a>00200 <span class="comment"> */</span>
<a name="l00201"></a>00201
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