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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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+<title>Graphic Equalizer: C:/Project Marcel &amp; Oliver/Graphic_Equalizer/include/audio.hch Source File</title>
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+<a class="el" href="dir_000000.html">C:</a>&nbsp;/&nbsp;<a class="el" href="dir_000001.html">Project Marcel &amp; Oliver</a>&nbsp;/&nbsp;<a class="el" href="dir_000002.html">Graphic_Equalizer</a>&nbsp;/&nbsp;<a class="el" href="dir_000003.html">include</a></div>
+<h1>audio.hch</h1><a href="audio_8hch.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
+00019 <span class="preprocessor">#ifndef _AUDIO_HCH</span>
+00020 <span class="preprocessor"></span><span class="preprocessor">#define _AUDIO_HCH 1</span>
+00021 <span class="preprocessor"></span>
+00022 <span class="comment">/*</span>
+00023 <span class="comment"> * Type definition of the shared memory to be used in various processes</span>
+00024 <span class="comment"> */</span>
+00025 <span class="keyword">typedef</span> <span class="keyword">struct </span>{
+00026 mpram {
+00027 ram <span class="keywordtype">unsigned</span> 7 write[256];
+00028 rom <span class="keywordtype">unsigned</span> 7 read[256];
+00029 } fft_info with { block = <span class="stringliteral">"BlockRAM"</span>};
+00030 mpram {
+00031 ram <span class="keywordtype">unsigned</span> 6 write[256];
+00032 rom <span class="keywordtype">unsigned</span> 6 read[256];
+00033 } ifft_info with { block = <span class="stringliteral">"BlockRAM"</span>};
+00034 <span class="keywordtype">unsigned</span> 4 *equalizer_levels_ptr;
+00035 <span class="keywordtype">unsigned</span> 1 display_log;
+00036 } audiodata_t;
+00037
+00038
+00039
+00040
+00041 <span class="comment">/*</span>
+00042 <span class="comment"> * States used to indicate wether audio data is sampled.</span>
+00043 <span class="comment"> */</span>
+00044 <span class="preprocessor">#define AUDIO_NOT_READY 0</span>
+00045 <span class="preprocessor"></span><span class="preprocessor">#define AUDIO_READY 1</span>
+00046 <span class="preprocessor"></span>
+00047
+00048
+00049 <span class="comment">/*</span>
+00050 <span class="comment"> * Line in or Mic in aliases for audio_init.</span>
+00051 <span class="comment"> */</span>
+00052 <span class="preprocessor">#define LINE_IN RC200AudioInLineIn</span>
+00053 <span class="preprocessor"></span><span class="preprocessor">#define MIC_IN RC200AudioInMicrophone</span>
+00054 <span class="preprocessor"></span>
+00055
+00056
+00057 <span class="comment">/*</span>
+00058 <span class="comment"> * Sample Rate Aliases for audio_init.</span>
+00059 <span class="comment"> */</span>
+00060 <span class="preprocessor">#define SR_8000 RC200AudioSampleRate8000</span>
+00061 <span class="preprocessor"></span><span class="preprocessor">#define SR_11025 RC200AudioSampleRate11025</span>
+00062 <span class="preprocessor"></span><span class="preprocessor">#define SR_16000 RC200AudioSampleRate16000</span>
+00063 <span class="preprocessor"></span><span class="preprocessor">#define SR_22050 RC200AudioSampleRate22050</span>
+00064 <span class="preprocessor"></span><span class="preprocessor">#define SR_44100 RC200AudioSampleRate44100</span>
+00065 <span class="preprocessor"></span><span class="preprocessor">#define SR_48000 RC200AudioSampleRate48000</span>
+00066 <span class="preprocessor"></span>
+00067
+00068
+00069 <span class="comment">/*</span>
+00070 <span class="comment"> * Initialize the Audio sub-system. gain_level sets the internal amplifier to</span>
+00071 <span class="comment"> * passed level, input_source chooses between line in or mic in. The</span>
+00072 <span class="comment"> * sample_rate is set to supplied rate. Defines for these are mentioned above.</span>
+00073 <span class="comment"> */</span>
+00074 macro proc <a class="code" href="audio_8hcc.html#a0">audio_init</a>(gain_level, input_source, sample_rate, AUDIOIN, AUDIOOUT);
+00075
+00076
+00077
+00078 <span class="comment">/*</span>
+00079 <span class="comment"> * Main audiodriver loop. This procedure never returns! It handles audio io and</span>
+00080 <span class="comment"> * updates the shared memory. It needs Audio I/O handlers passed.</span>
+00081 <span class="comment"> */</span>
+00082 macro proc <a class="code" href="audio_8hcc.html#a1">audio_main</a>(audiodata, AUDIOIN, AUDIOOUT);
+00083
+00084 <span class="preprocessor">#else</span>
+00085 <span class="preprocessor"></span><span class="preprocessor">#error "ERROR file audio.hch multiple times included"</span>
+00086 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* --- _AUDIO_HCH --- */</span>
+00087
+</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Nov 29 12:04:46 2004 for Graphic Equalizer by&nbsp;
+<a href="http://www.doxygen.org/index.html">
+<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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+</html>