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#include "tests/utils.h"
#include "audiographer/general/sample_format_converter.h"
using namespace AudioGrapher;
class SampleFormatConverterTest : public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE (SampleFormatConverterTest);
CPPUNIT_TEST (testInit);
CPPUNIT_TEST (testFrameCount);
CPPUNIT_TEST (testFloat);
CPPUNIT_TEST (testInt32);
CPPUNIT_TEST (testInt24);
CPPUNIT_TEST (testInt16);
CPPUNIT_TEST (testUint8);
CPPUNIT_TEST (testChannelCount);
CPPUNIT_TEST_SUITE_END ();
public:
void setUp()
{
frames = 128;
random_data = TestUtils::init_random_data(frames, 1.0);
}
void tearDown()
{
delete [] random_data;
}
void testInit()
{
// Float never uses dithering and should always use full 32 bits of data
boost::shared_ptr<SampleFormatConverter<float> > f_converter (new SampleFormatConverter<float>(1));
f_converter->init (frames, D_Tri, 32); // Doesn't throw
CPPUNIT_ASSERT_THROW (f_converter->init (frames, D_Tri, 24), Exception);
CPPUNIT_ASSERT_THROW (f_converter->init (frames, D_Tri, 48), Exception);
/* Test that too large data widths throw.
We are fine with unnecessarily narrow data widths */
boost::shared_ptr<SampleFormatConverter<int32_t> > i_converter (new SampleFormatConverter<int32_t>(1));
i_converter->init (frames, D_Tri, 32); // Doesn't throw
i_converter->init (frames, D_Tri, 24); // Doesn't throw
i_converter->init (frames, D_Tri, 8); // Doesn't throw
i_converter->init (frames, D_Tri, 16); // Doesn't throw
CPPUNIT_ASSERT_THROW (i_converter->init (frames, D_Tri, 48), Exception);
boost::shared_ptr<SampleFormatConverter<int16_t> > i16_converter (new SampleFormatConverter<int16_t>(1));
i16_converter->init (frames, D_Tri, 16); // Doesn't throw
i16_converter->init (frames, D_Tri, 8); // Doesn't throw
CPPUNIT_ASSERT_THROW (i16_converter->init (frames, D_Tri, 32), Exception);
CPPUNIT_ASSERT_THROW (i16_converter->init (frames, D_Tri, 48), Exception);
boost::shared_ptr<SampleFormatConverter<uint8_t> > ui_converter (new SampleFormatConverter<uint8_t>(1));
ui_converter->init (frames, D_Tri, 8); // Doesn't throw
ui_converter->init (frames, D_Tri, 4); // Doesn't throw
CPPUNIT_ASSERT_THROW (ui_converter->init (frames, D_Tri, 16), Exception);
}
void testFrameCount()
{
boost::shared_ptr<SampleFormatConverter<int32_t> > converter (new SampleFormatConverter<int32_t>(1));
boost::shared_ptr<VectorSink<int32_t> > sink (new VectorSink<int32_t>());
converter->init (frames, D_Tri, 32);
converter->add_output (sink);
framecnt_t frames_output = 0;
{
ProcessContext<float> pc(random_data, frames / 2, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames / 2, frames_output);
}
{
ProcessContext<float> pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
}
{
ProcessContext<float> pc(random_data, frames + 1, 1);
CPPUNIT_ASSERT_THROW(converter->process (pc), Exception);
}
}
void testFloat()
{
boost::shared_ptr<SampleFormatConverter<float> > converter (new SampleFormatConverter<float>(1));
boost::shared_ptr<VectorSink<float> > sink (new VectorSink<float>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 32);
converter->add_output (sink);
converter->set_clip_floats (false);
ProcessContext<float> const pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_equals(sink->get_array(), random_data, frames));
// Make sure a few samples are < -1.0 and > 1.0
random_data[10] = -1.5;
random_data[20] = 1.5;
converter->set_clip_floats (true);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), frames));
for (framecnt_t i = 0; i < frames; ++i) {
// fp comparison needs a bit of tolerance, 1.01 << 1.5
CPPUNIT_ASSERT(sink->get_data()[i] < 1.01);
CPPUNIT_ASSERT(sink->get_data()[i] > -1.01);
}
}
void testInt32()
{
boost::shared_ptr<SampleFormatConverter<int32_t> > converter (new SampleFormatConverter<int32_t>(1));
boost::shared_ptr<VectorSink<int32_t> > sink (new VectorSink<int32_t>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 32);
converter->add_output (sink);
ProcessContext<float> pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), frames));
}
void testInt24()
{
boost::shared_ptr<SampleFormatConverter<int32_t> > converter (new SampleFormatConverter<int32_t>(1));
boost::shared_ptr<VectorSink<int32_t> > sink (new VectorSink<int32_t>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 24);
converter->add_output (sink);
ProcessContext<float> pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), frames));
}
void testInt16()
{
boost::shared_ptr<SampleFormatConverter<int16_t> > converter (new SampleFormatConverter<int16_t>(1));
boost::shared_ptr<VectorSink<int16_t> > sink (new VectorSink<int16_t>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 16);
converter->add_output (sink);
ProcessContext<float> pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), frames));
}
void testUint8()
{
boost::shared_ptr<SampleFormatConverter<uint8_t> > converter (new SampleFormatConverter<uint8_t>(1));
boost::shared_ptr<VectorSink<uint8_t> > sink (new VectorSink<uint8_t>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 8);
converter->add_output (sink);
ProcessContext<float> pc(random_data, frames, 1);
converter->process (pc);
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (frames, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), frames));
}
void testChannelCount()
{
boost::shared_ptr<SampleFormatConverter<int32_t> > converter (new SampleFormatConverter<int32_t>(3));
boost::shared_ptr<VectorSink<int32_t> > sink (new VectorSink<int32_t>());
framecnt_t frames_output = 0;
converter->init(frames, D_Tri, 32);
converter->add_output (sink);
ProcessContext<float> pc(random_data, 4, 1);
CPPUNIT_ASSERT_THROW (converter->process (pc), Exception);
framecnt_t new_frame_count = frames - (frames % 3);
converter->process (ProcessContext<float> (pc.data(), new_frame_count, 3));
frames_output = sink->get_data().size();
CPPUNIT_ASSERT_EQUAL (new_frame_count, frames_output);
CPPUNIT_ASSERT (TestUtils::array_filled(sink->get_array(), pc.frames()));
}
private:
float * random_data;
framecnt_t frames;
};
CPPUNIT_TEST_SUITE_REGISTRATION (SampleFormatConverterTest);
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