MediaConnection: Non simple connections should be inherited

* BSimpleMediaConnections are provided for that.
* Make SetOutputEnabled private.

headers/private/media/experimental/MediaConnection.h

@@ -115,10 +115,8 @@ private:
 
 
 class BMediaInput : public virtual BMediaConnection {
-public:
-									BMediaInput();
-
 protected:
+									BMediaInput();
 	virtual							~BMediaInput();
 
 	// Callbacks
@@ -147,13 +145,8 @@ private:
 
 
 class BMediaOutput : public virtual BMediaConnection {
-public:
-									BMediaOutput();
-
-	void							SetEnabled(bool enabled);
-	bool							IsEnabled() const;
-
 protected:
+									BMediaOutput();
 	virtual							~BMediaOutput();
 
 	// Callbacks
@@ -172,6 +165,10 @@ protected:
 private:
 	media_output					_MediaOutput() const;
 
+	// TODO: possibly unneeded.
+	void							_SetEnabled(bool enabled);
+	bool							_IsEnabled() const;
+
 	bool							fEnabled;
 	size_t							fFramesSent;
 

src/kits/media/experimental/MediaClientNode.cpp

@@ -479,7 +479,7 @@ BMediaClientNode::EnableOutput(const media_source& source,
 
 	BMediaOutput* conn = fOwner->_FindOutput(source);
 	if (conn != NULL)
-		conn->SetEnabled(enabled);
+		conn->_SetEnabled(enabled);
 }
 
 
@@ -623,7 +623,7 @@ BMediaClientNode::_ProduceNewBuffer(const media_timed_event* event,
 	if (output == NULL)
 		return;
 
-	if (output->IsEnabled()) {
+	if (output->_IsEnabled()) {
 		BBuffer* buffer = _GetNextBuffer(output, event->event_time);
 
 		if (buffer != NULL) {

src/kits/media/experimental/MediaConnection.cpp

@@ -269,7 +269,7 @@ BMediaOutput::~BMediaOutput()
 
 
 bool
-BMediaOutput::IsEnabled() const
+BMediaOutput::_IsEnabled() const
 {
 	CALLED();
 
@@ -278,7 +278,7 @@ BMediaOutput::IsEnabled() const
 
 
 void
-BMediaOutput::SetEnabled(bool enabled)
+BMediaOutput::_SetEnabled(bool enabled)
 {
 	fEnabled = enabled;
 }