Prevent clipping during the import of files from sources that have

amplitudes greater than 1 when data is being stored in files that
are clamped. e.g. when importing hot sources and resampling them
when the session file format is integer.


git-svn-id: svn://localhost/ardour2/branches/3.0@6879 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 31 insertions, 0 deletions

diff --git a/libs/ardour/test/resampled_source.cc b/libs/ardour/test/resampled_source.cc
new file mode 100644
index 0000000000..02bd7ff1a8
--- /dev/null
+++ b/libs/ardour/test/resampled_source.cc
@@ -0,0 +1,31 @@
+#include "ardour/resampled_source.h"
+#include "ardour/sndfileimportable.h"
+#include "resampled_source.h"
+
+CPPUNIT_TEST_SUITE_REGISTRATION (ResampledSourceTest);
+
+using namespace ARDOUR;
+
+void
+ResampledSourceTest::seekTest ()
+{
+	boost::shared_ptr<SndFileImportableSource> s (new SndFileImportableSource ("../../libs/ardour/test/test.wav"));
+	ResampledImportableSource r (s, 48000, SrcBest);
+
+	/* Make sure that seek (0) has the desired effect, ie that
+	   given the same input you get the same output after seek (0)
+	   as you got when the Source was newly created.
+	*/
+
+	Sample A[64];
+	r.read (A, 64);
+
+	r.seek (0);
+	
+	Sample B[64];
+	r.read (B, 64);
+
+	for (int i = 0; i < 64; ++i) {
+		CPPUNIT_ASSERT (A[i] == B[i]);
+	}
+}