git-svn-id: https://casparcg.svn.sourceforge.net/svnroot/casparcg/server/branches...

[casparcg] / core / producer / frame_producer.h

diff --git a/core/producer/frame_producer.h b/core/producer/frame_producer.h
index 830461d5b9841ca7a31c73bc28e0285033b1c88a..3cf7e50107fcc7ad38a2acf8de243e6569b9ac27 100644 (file)
--- a/core/producer/frame_producer.h
+++ b/core/producer/frame_producer.h
@@ -23,6 +23,7 @@
 \r
 #include <boost/noncopyable.hpp>\r
 \r
+#include <algorithm>\r
 #include <functional>\r
 #include <string>\r
 #include <vector>\r
@@ -72,4 +73,21 @@ safe_ptr<core::frame_producer> create_producer(const safe_ptr<frame_factory>&, c
 \r
 safe_ptr<core::frame_producer> create_destroy_producer_proxy(executor& destroy_context, const safe_ptr<frame_producer>& producer);\r
 \r
+template<typename T>\r
+typename std::decay<T>::type get_param(const std::wstring& name, const std::vector<std::wstring>& params, T fail_value)\r
+{      \r
+       auto it = std::find(params.begin(), params.end(), name);\r
+       if(it == params.end() || ++it == params.end())  \r
+               return fail_value;\r
+       \r
+       T value = fail_value;\r
+       try\r
+       {\r
+               value = boost::lexical_cast<std::decay<T>::type>(*it);\r
+       }\r
+       catch(boost::bad_lexical_cast&){}\r
+\r
+       return value;\r
+}\r
+\r
 }}\r