3 files changed, 6 insertions, 6 deletions
diff --git a/Gem/develop/include/Gem/plugins/film.h b/Gem/develop/include/Gem/plugins/film.h
index 679c753..14f39ec 100644
--- a/Gem/develop/include/Gem/plugins/film.h
+++ b/Gem/develop/include/Gem/plugins/film.h
@@ -80,7 +80,7 @@ class GEM_EXTERN film
    * anything about the internal cs of the decoder
    */
   /* returns TRUE if loading was successful, FALSE otherwise */
-  virtual bool open(const std::string,
+  virtual bool open(const std::string&,
 		    const gem::Properties&requestprops) = 0;
 
   /* some error codes */
diff --git a/Gem/develop/include/Gem/plugins/record.h b/Gem/develop/include/Gem/plugins/record.h
index b2aa254..ed0113c 100644
--- a/Gem/develop/include/Gem/plugins/record.h
+++ b/Gem/develop/include/Gem/plugins/record.h
@@ -54,11 +54,11 @@ public:
   /**
    * get a human readable description of the given codec (e.g. "Motion Jpeg A")
    */
-  virtual const std::string getCodecDescription(const std::string codecname) = 0;
+  virtual const std::string getCodecDescription(const std::string&codecname) = 0;
   /**
    * set the current codec
    */
-  virtual bool setCodec(const std::string name) = 0;
+  virtual bool setCodec(const std::string&name) = 0;
 
   /**
    * list all properties the currently selected codec supports
@@ -76,7 +76,7 @@ public:
   /*
    * returns TRUE if opening was successful, FALSE otherwise
    */
-  virtual bool start(const std::string filename, gem::Properties&props) = 0;
+  virtual bool start(const std::string&filename, gem::Properties&props) = 0;
 
   //////////
   // record a frame
diff --git a/Gem/develop/include/Gem/plugins/video.h b/Gem/develop/include/Gem/plugins/video.h
index 7be968d..4944f94 100644
--- a/Gem/develop/include/Gem/plugins/video.h
+++ b/Gem/develop/include/Gem/plugins/video.h
@@ -71,7 +71,7 @@ namespace gem { namespace plugins {
        * the default implementation (which you normally shouldn't need to override)
        * will simply set m_devicename and clear m_devicenum
        */
-      virtual bool	    	setDevice(const std::string) = 0;
+      virtual bool	    	setDevice(const std::string&) = 0;
 
 
       //! open the device (calls openDevice())
@@ -194,7 +194,7 @@ namespace gem { namespace plugins {
 
       // for pix_video: query whether this backend provides access to this class of devices
       // (e.g. "dv")
-      virtual bool provides(const std::string) = 0;
+      virtual bool provides(const std::string&) = 0;
       // get a list of all provided devices
       virtual std::vector<std::string>provides(void) = 0;