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<title>aubio: synth/test-wavetable.c</title>
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<div class="title">synth/test-wavetable.c</div> </div>
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<div class="fragment"><div class="line"><span class="preprocessor">#include <<a class="code" href="aubio_8h.html">aubio.h</a>></span></div><div class="line"><span class="preprocessor">#include "utils_tests.h"</span></div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)</div><div class="line">{</div><div class="line"> <a class="code" href="types_8h.html#a73eb223321cb66fc30f473677e6356bb">sint_t</a> err = 0;</div><div class="line"></div><div class="line"> <span class="keywordflow">if</span> (argc < 2) {</div><div class="line"> err = 2;</div><div class="line"> PRINT_ERR(<span class="stringliteral">"not enough arguments\n"</span>);</div><div class="line"> PRINT_MSG(<span class="stringliteral">"usage: %s <output_path> [freq] [samplerate]\n"</span>, argv[0]);</div><div class="line"> <span class="keywordflow">return</span> err;</div><div class="line"> }</div><div class="line"></div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> samplerate = 44100; <span class="comment">// default is the samplerate of input_path</span></div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> hop_size = 256;</div><div class="line"> <a class="code" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> freq = 440.;</div><div class="line"></div><div class="line"> <a class="code" href="types_8h.html#a40bb5262bf908c328fbcfbe5d29d0201">char_t</a> *sink_path = argv[1];</div><div class="line"> <span class="keywordflow">if</span> ( argc == 4 ) samplerate = atoi(argv[3]);</div><div class="line"> <span class="keywordflow">if</span> ( argc == 3 ) freq = atof(argv[2]);</div><div class="line"></div><div class="line"> <a name="_a0"></a><a class="code" href="structfvec__t.html">fvec_t</a> *vec = <a name="a1"></a><a class="code" href="fvec_8h.html#aa9bc0906651523429a4ebf7b4342fe73">new_fvec</a>(hop_size);</div><div class="line"> <a class="code" href="sink_8h.html#ab3fd37f3117e99c10c63cb595821c31d">aubio_sink_t</a> *sink = <a name="a2"></a><a class="code" href="sink_8h.html#a2de2683d91ada3cf80fcf418606032e3">new_aubio_sink</a>(sink_path, samplerate);</div><div class="line"></div><div class="line"> <a class="code" href="wavetable_8h.html#abbf3d07fc6bfec0ababa1e36fa4d2953">aubio_wavetable_t</a> * wavetable = <a name="a3"></a><a class="code" href="wavetable_8h.html#ae1433850799b37ef1c13772b8a5d332b">new_aubio_wavetable</a> (samplerate, hop_size);</div><div class="line"></div><div class="line"> <span class="comment">// 2 seconds duration, in samples</span></div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> duration = 2 * samplerate;</div><div class="line"></div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> n_frames = 0;</div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> write = 0;</div><div class="line"></div><div class="line"> <a name="a4"></a><a class="code" href="wavetable_8h.html#aeb76a5d89b91b509b297ea480a1b7b2a">aubio_wavetable_play</a> (wavetable);</div><div class="line"> <a name="a5"></a><a class="code" href="wavetable_8h.html#a1f51931af1a13db4667173aca645d05d">aubio_wavetable_set_freq</a> ( wavetable, freq );</div><div class="line"></div><div class="line"> <a class="code" href="types_8h.html#a12a1e9b3ce141648783a82445d02b58d">uint_t</a> region = 0;</div><div class="line"></div><div class="line"> <span class="keywordflow">do</span> {</div><div class="line"> <span class="keywordflow">if</span> ( n_frames > duration / 3 && region < 1) {</div><div class="line"> <a name="a6"></a><a class="code" href="wavetable_8h.html#ab39769ce70db186dd340cce48a20431f">aubio_wavetable_stop</a> (wavetable);</div><div class="line"> region++;</div><div class="line"> }</div><div class="line"> <span class="keywordflow">if</span> ( n_frames > 2 * duration / 3 && region < 2) {</div><div class="line"> <a class="code" href="wavetable_8h.html#aeb76a5d89b91b509b297ea480a1b7b2a">aubio_wavetable_play</a> (wavetable);</div><div class="line"> <a class="code" href="wavetable_8h.html#a1f51931af1a13db4667173aca645d05d">aubio_wavetable_set_freq</a> ( wavetable, freq / 2.);</div><div class="line"> region++;</div><div class="line"> }</div><div class="line"> <span class="keywordflow">if</span> (duration - n_frames < hop_size * 2 ) {</div><div class="line"> <a class="code" href="wavetable_8h.html#ab39769ce70db186dd340cce48a20431f">aubio_wavetable_stop</a>( wavetable );</div><div class="line"> }</div><div class="line"> <span class="keywordflow">if</span> (duration - n_frames < hop_size ) {</div><div class="line"> write = duration - n_frames;</div><div class="line"> } <span class="keywordflow">else</span> {</div><div class="line"> write = hop_size;</div><div class="line"> }</div><div class="line"> <a name="a7"></a><a class="code" href="wavetable_8h.html#acb766dead872e20b256117a03a0a54ce">aubio_wavetable_do</a> (wavetable, vec, vec);</div><div class="line"> <a name="a8"></a><a class="code" href="sink_8h.html#a72cd56dca6c57b30c8d62797fc9ff687">aubio_sink_do</a>(sink, vec, write);</div><div class="line"> n_frames += hop_size;</div><div class="line"> } <span class="keywordflow">while</span> ( n_frames <= duration );</div><div class="line"></div><div class="line"> <a name="a9"></a><a class="code" href="wavetable_8h.html#aef974c1cee018f29d8b61c12a430b63a">del_aubio_wavetable</a> (wavetable);</div><div class="line"> <a name="a10"></a><a class="code" href="sink_8h.html#a75792712904746e13373dd7227a7e846">del_aubio_sink</a>(sink);</div><div class="line"> <a name="a11"></a><a class="code" href="fvec_8h.html#a86fad6d27aad91c910d1b48195922cb9">del_fvec</a>(vec);</div><div class="line"> <a name="a12"></a><a class="code" href="musicutils_8h.html#a2b5d813f8d70b69add6f4811a68c9424">aubio_cleanup</a>();</div><div class="line"></div><div class="line"> <span class="keywordflow">return</span> 0;</div><div class="line">}</div></div><!-- fragment --> </div><!-- contents -->
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