mtdm_test.cc

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#include <cstring>
#include <cmath>
#include "ardour/mtdm.h"
#include "mtdm_test.h"

CPPUNIT_TEST_SUITE_REGISTRATION (MTDMTest);

using namespace std;

void
MTDMTest::basicTest ()
{
        float in[256];
        float out[256];

        memset (in, 0, 256 * sizeof (float));
        MTDM* mtdm = new MTDM (44100);

        // initialization, need at least 3 cycles
        // to allow resolution below error limit.
        for (int i = 0; i < 4; ++i) {
                mtdm->process (256, in, out);
                memcpy (in, out, 256 * sizeof (float));
        }
        
        for (int i = 0; i < 64; ++i) {
                mtdm->process (256, in, out);
                memcpy (in, out, 256 * sizeof (float));

                CPPUNIT_ASSERT_EQUAL (0, mtdm->resolve ());
                CPPUNIT_ASSERT (mtdm->err() < 1);
                CPPUNIT_ASSERT_EQUAL (256.0, rint (mtdm->del()));
        }
}