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<h1>example.c</h1> </div>
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<p>Example producing short random music with FluidSynth</p>
<div class="fragment"><pre class="fragment"><span class="comment">/*</span>
<span class="comment"></span>
<span class="comment"> An example of how to use FluidSynth.</span>
<span class="comment"></span>
<span class="comment"> To compile it on Linux:</span>
<span class="comment"> $ gcc -o example example.c `pkg-config fluidsynth --libs`</span>
<span class="comment"></span>
<span class="comment"> To compile it on Windows:</span>
<span class="comment"> ... </span>
<span class="comment"></span>
<span class="comment"></span>
<span class="comment"> Author: Peter Hanappe.</span>
<span class="comment"> This code is in the public domain. Use it as you like.</span>
<span class="comment"></span>
<span class="comment">*/</span>
<span class="preprocessor">#include <<a class="code" href="fluidsynth_8h.html" title="FluidSynth is a real-time synthesizer designed for SoundFont(R) files.">fluidsynth.h</a>></span>
<span class="preprocessor">#if defined(WIN32)</span>
<span class="preprocessor"></span><span class="preprocessor">#include <windows.h></span>
<span class="preprocessor">#define sleep(_t) Sleep(_t * 1000)</span>
<span class="preprocessor"></span><span class="preprocessor">#else</span>
<span class="preprocessor"></span><span class="preprocessor">#include <stdlib.h></span>
<span class="preprocessor">#endif</span>
<span class="preprocessor"></span>
<span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv)
{
<a class="code" href="types_8h.html#aa363402d3c77333b0f070ba531d034ba" title="Configuration settings instance.">fluid_settings_t</a>* settings;
<a class="code" href="types_8h.html#ae265f10ae174a13afe010de50d87e1a4" title="Synthesizer instance.">fluid_synth_t</a>* synth;
<a class="code" href="types_8h.html#ac3706330ce49cac5b7dd079e90d376d8" title="Audio driver instance.">fluid_audio_driver_t</a>* adriver;
<span class="keywordtype">int</span> sfont_id;
<span class="keywordtype">int</span> i, key;
<span class="comment">/* Create the settings. */</span>
settings = <a name="a0"></a><a class="code" href="settings_8h.html#ad7ab9269a28c2b5852d512ffe3546949" title="Create a new settings object.">new_fluid_settings</a>();
<span class="comment">/* Change the settings if necessary*/</span>
<span class="comment">/* Create the synthesizer. */</span>
synth = <a name="a1"></a><a class="code" href="synth_8h.html#a344f7369c0f57d30f72702d0c88e6178" title="Create new FluidSynth instance.">new_fluid_synth</a>(settings);
<span class="comment">/* Create the audio driver. The synthesizer starts playing as soon</span>
<span class="comment"> as the driver is created. */</span>
adriver = <a name="a2"></a><a class="code" href="audio_8h.html#a4ad51317b10b89bfe94ade5db345864b" title="Create a new audio driver.">new_fluid_audio_driver</a>(settings, synth);
<span class="comment">/* Load a SoundFont and reset presets (so that new instruments</span>
<span class="comment"> * get used from the SoundFont) */</span>
sfont_id = <a name="a3"></a><a class="code" href="synth_8h.html#aaf9376cf7189f9c64da5ffdeed85c9c4" title="Load a SoundFont file (filename is interpreted by SoundFont loaders).">fluid_synth_sfload</a>(synth, <span class="stringliteral">"example.sf2"</span>, 1);
<span class="comment">/* Initialize the random number generator */</span>
srand(getpid());
<span class="keywordflow">for</span> (i = 0; i < 12; i++) {
<span class="comment">/* Generate a random key */</span>
key = 60 + (int) (12.0f * rand() / (float) RAND_MAX);
<span class="comment">/* Play a note */</span>
<a name="a4"></a><a class="code" href="synth_8h.html#a4a98222fe1c36bfd598dc4cd89f4b75c" title="Send a note-on event to a FluidSynth object.">fluid_synth_noteon</a>(synth, 0, key, 80);
<span class="comment">/* Sleep for 1 second */</span>
sleep(1);
<span class="comment">/* Stop the note */</span>
<a name="a5"></a><a class="code" href="synth_8h.html#a5e8f96cacbc6460f7677a6191cbd4472" title="Send a note-off event to a FluidSynth object.">fluid_synth_noteoff</a>(synth, 0, key);
}
<span class="comment">/* Clean up */</span>
<a name="a6"></a><a class="code" href="audio_8h.html#a05678e633d37da0f93000045393e9442" title="Deletes an audio driver instance.">delete_fluid_audio_driver</a>(adriver);
<a name="a7"></a><a class="code" href="synth_8h.html#a585a63f3a25b9df17b82ae87f2d38cfc" title="Delete a FluidSynth instance.">delete_fluid_synth</a>(synth);
<a name="a8"></a><a class="code" href="settings_8h.html#a550270f09e4f3c645cbe9e6d3c514ca4" title="Delete the provided settings object.">delete_fluid_settings</a>(settings);
<span class="keywordflow">return</span> 0;
}
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