view test/TestYin.cpp @ 137:109c3a2ad930 vamp-fft-revision

Make use of new Vamp FFT interface. This reduces the runtime of the regression test from 5.7 to 2.2 seconds on this machine, but it does need the right version of the SDK, which is currently only available in the vampipe branch.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

#include "Yin.h"

#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MAIN

#include <boost/test/unit_test.hpp>

BOOST_AUTO_TEST_SUITE(TestYin)

BOOST_AUTO_TEST_CASE(implicitYinOutput)
{
    // this test is just to make sure a YinOutput initialises
    // -- the actual reason for me to write this is to have written 
    // a test, so let's plough on...
    Yin::YinOutput out;
    
    BOOST_CHECK_EQUAL(out.f0, 0);
    BOOST_CHECK_EQUAL(out.periodicity, 0);
    BOOST_CHECK_EQUAL(out.rms, 0);
}

BOOST_AUTO_TEST_CASE(sine128)
{
    
    // a very short frame (8) with maximum frequency (128),
    // assuming a sampling rate of 256 1/sec.
    // Yin should get it approximately right... 
    // but because of post-processing we want to be tolerant

    double in[] = { 1, -1, 1, -1, 1, -1, 1, -1 };
    Yin y(8, 256);
    Yin::YinOutput yo = y.process(in);
    
    BOOST_CHECK(yo.f0 > 114);
    BOOST_CHECK(yo.f0 < 142);
}

BOOST_AUTO_TEST_SUITE_END()