Restored audio simimarity based classifier

src/libs/som/CMakeLists.txt

@@ -16,3 +16,5 @@ target_link_libraries(lmssom PUBLIC
 	lmsutils
 	)
 
+set_property(TARGET lmssom PROPERTY POSITION_INDEPENDENT_CODE ON)
+

src/libs/som/impl/Network.cpp

@@ -201,9 +201,9 @@ Network::getClosestRefVectorPosition(const InputVector& data, InputVector::Dista
 }
 
 std::optional<Position>
-Network::getClosestRefVectorPosition(const std::set<Position>& refVectorsPosition, InputVector::Distance maxDistance) const
+Network::getClosestRefVectorPosition(const std::unordered_set<Position>& refVectorsPosition, InputVector::Distance maxDistance) const
 {
-	std::set<Position> neighboursPosition;
+	std::unordered_set<Position> neighboursPosition;
 	for (const Position& refVectorPosition : refVectorsPosition)
 	{
 		if (refVectorPosition.y > 0)

src/libs/som/include/som/InputVector.hpp

@@ -31,7 +31,7 @@ namespace SOM
 class Exception : public LmsException
 {
 	public:
-		Exception(const std::string& msg) : LmsException(msg) {}
+		using LmsException::LmsException;
 };
 
 class InputVector

src/libs/som/include/som/Matrix.hpp

@@ -21,7 +21,7 @@
 
 #include <algorithm>
 #include <cassert>
-#include <sstream>
+#include <functional>
 #include <vector>
 
 namespace SOM
@@ -116,3 +116,20 @@ class Matrix
 };
 
 } // ns SOM
+
+namespace std {
+
+template<>
+class hash<SOM::Position>
+{
+	public:
+		size_t operator()(const SOM::Position& s) const
+		{
+			size_t h1 = std::hash<SOM::Coordinate>()(s.x);
+			size_t h2 = std::hash<SOM::Coordinate>()(s.y);
+			return h1 ^ (h2 << 1);
+		}
+};
+
+} // ns std
+

src/libs/som/include/som/Network.hpp

@@ -20,7 +20,7 @@
 #pragma once
 
 #include <vector>
-#include <set>
+#include <unordered_set>
 #include <optional>
 #include <ostream>
 #include <functional>
@@ -70,7 +70,7 @@ class Network
 		Position getClosestRefVectorPosition(const InputVector& data) const;
 		std::optional<Position> getClosestRefVectorPosition(const InputVector& data, InputVector::Distance maxDistance) const;
 
-		std::optional<Position> getClosestRefVectorPosition(const std::set<Position>& refVectorsPosition, InputVector::Distance maxDistance) const;
+		std::optional<Position> getClosestRefVectorPosition(const std::unordered_set<Position>& refVectorsPosition, InputVector::Distance maxDistance) const;
 
 		InputVector::Distance getRefVectorsDistance(const Position& position1, const Position& position2) const;