Add UpmixerB.

1 files changed, 125 insertions, 0 deletions

diff --git a/test/audio_processor_delay_test.cc b/test/audio_processor_delay_test.cc
new file mode 100644
index 000000000..b3948a71b
--- /dev/null
+++ b/test/audio_processor_delay_test.cc
@@ -0,0 +1,125 @@
+/*
+    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "lib/audio_delay.h"
+#include "lib/audio_buffers.h"
+#include <boost/test/unit_test.hpp>
+#include <cmath>
+
+using std::cerr;
+using std::cout;
+using boost::shared_ptr;
+
+#define CHECK_SAMPLE(c,f,r) \
+	if (fabs(out->data(c)[f] - (r)) > 0.1) {			\
+		cerr << "Sample " << f << " at line " << __LINE__ << " is " << out->data(c)[f] << " not " << r << "; difference is " << fabs(out->data(c)[f] - (r)) << "\n"; \
+		BOOST_REQUIRE (fabs(out->data(c)[f] - (r)) <= 0.1);	\
+	}
+
+/** Block size greater than delay */
+BOOST_AUTO_TEST_CASE (audio_processor_delay_test1)
+{
+	AudioDelay delay (64);
+
+	int const C = 2;
+
+	shared_ptr<AudioBuffers> in (new AudioBuffers (C, 256));
+	for (int i = 0; i < C; ++i) {
+		for (int j = 0; j < 256; ++j) {
+			in->data(i)[j] = j;
+		}
+	}
+
+	shared_ptr<AudioBuffers> out = delay.run (in);
+	BOOST_REQUIRE_EQUAL (out->frames(), in->frames());
+
+	/* Silence at the start */
+	for (int i = 0; i < C; ++i) {
+		for (int j = 0; j < 64; ++j) {
+			CHECK_SAMPLE (i, j, 0);
+		}
+	}
+
+	/* Then the delayed data */
+	for (int i = 0; i < C; ++i) {
+		for (int j = 64; j < 256; ++j) {
+			CHECK_SAMPLE (i, j, j - 64);
+		}
+	}
+
+	/* Feed some more in */
+	for (int i = 0; i < C; ++i) {
+		for (int j = 0; j < 256; ++j) {
+			in->data(i)[j] = j + 256;
+		}
+	}
+	out = delay.run (in);
+
+	/* Check again */
+	for (int i = 0; i < C; ++i) {
+		for (int j = 256; j < 512; ++j) {
+			CHECK_SAMPLE (i, j - 256, j - 64);
+		}
+	}
+}
+
+/** Block size less than delay */
+BOOST_AUTO_TEST_CASE (audio_processor_delay_test2)
+{
+	AudioDelay delay (256);
+
+	int const C = 2;
+
+	/* Feeding 4 blocks of 64 should give silence each time */
+
+	for (int i = 0; i < 4; ++i) {
+		cout << "i=" << i << "\n";
+		shared_ptr<AudioBuffers> in (new AudioBuffers (C, 64));
+		for (int j = 0; j < C; ++j) {
+			for (int k = 0; k < 64; ++k) {
+				in->data(j)[k] = k + i * 64;
+			}
+		}
+
+		shared_ptr<AudioBuffers> out = delay.run (in);
+		BOOST_REQUIRE_EQUAL (out->frames(), in->frames());
+
+		/* Check for silence */
+		for (int j = 0; j < C; ++j) {
+			for (int k = 0; k < 64; ++k) {
+				CHECK_SAMPLE (j, k, 0);
+			}
+		}
+	}
+
+	/* Now feed 4 blocks of silence and we should see the data */
+	for (int i = 0; i < 4; ++i) {
+		/* Feed some silence */
+		shared_ptr<AudioBuffers> in (new AudioBuffers (C, 64));
+		in->make_silent ();
+		shared_ptr<AudioBuffers> out = delay.run (in);
+
+		/* Should now see the delayed data */
+		for (int j = 0; j < C; ++j) {
+			for (int k = 0; k < 64; ++k) {
+				CHECK_SAMPLE (j, k, k + i * 64);
+			}
+		}
+	}
+}