- added MultiBuffer

- improved tests

delay/buffer_multi.hpp

@@ -31,18 +31,17 @@
 namespace dsp {
 
 template <typename T>
-class BufferMulti
+class BufferMulti : public Buffer<T>
 {
-	Buffer<T> m_buffer;
-	size_t m_capacity;
 	size_t m_numChannels;
+	size_t m_capacity;
 
 	public:
-	BufferMulti(size_t capacity, size_t numChannels)
-	: m_capacity(capacity)
+	BufferMulti(size_t numChannels, size_t capacity)
+	: Buffer<T>(capacity*numChannels)
 	, m_numChannels(numChannels)
+	, m_capacity(capacity)
 	{
-		m_buffer.resize(capacity*numChannels);
 	}
 
 	size_t capacity()
@@ -55,11 +54,19 @@ class BufferMulti
 		return m_numChannels;
 	}
 
-	void reset()
+    using Buffer<T>::at;
+	T & at(uint channel, int offset)
 	{
-		m_buffer.reset();
+		return at(int(m_capacity*channel + offset));
 	}
 
+	const T & at(uint channel, int offset) const
+	{
+		return at(channel, offset);
+	}
+
+protected:
+
 };
 }