[streaming_consumer] Implemented support for separating audio channels into separate...

[casparcg] / common / param.h

diff --git a/common/param.h b/common/param.h
index ae38d35b164bedc9c01f2b8ec9cb858cd49e3db5..91d9fa4d873c75c4610c3387938f1a41e601992c 100644 (file)
--- a/common/param.h
+++ b/common/param.h
@@ -10,12 +10,13 @@
 
 namespace caspar {
 
-class param_comparer {
-               const std::wstring& lhs;
-       public:
-               explicit param_comparer(const std::wstring& p) : lhs(p) {}
-               bool operator()(const std::wstring& rhs) { return boost::iequals(lhs, rhs); }
-       };
+class param_comparer
+{
+       const std::wstring& lhs;
+public:
+       explicit param_comparer(const std::wstring& p) : lhs(p) {}
+       bool operator()(const std::wstring& rhs) { return boost::iequals(lhs, rhs); }
+};
 
 template<typename C>
 bool contains_param(const std::wstring& name, C&& params)
@@ -23,44 +24,85 @@ bool contains_param(const std::wstring& name, C&& params)
        return std::find_if(params.begin(), params.end(), param_comparer(name)) != params.end();
 }
 
+template<typename C>
+bool get_and_consume_flag(const std::wstring& flag_param, C& params)
+{
+       auto flag_it = std::find_if(params.begin(), params.end(), param_comparer(flag_param));
+       bool flag = false;
+
+       if (flag_it != params.end())
+       {
+               flag = true;
+               params.erase(flag_it);
+       }
+
+       return flag;
+}
+
+template<typename C>
+void replace_placeholders(const std::wstring& placeholder, const std::wstring& replacement, C&& params)
+{
+       for (auto& param : params)
+               boost::ireplace_all(param, placeholder, replacement);
+}
+
+static std::vector<std::wstring> protocol_split(const std::wstring& s)
+{
+       std::vector<std::wstring> result;
+       size_t pos;
+
+       if ((pos = s.find(L"://")) != std::wstring::npos)
+       {
+               result.push_back(s.substr(0, pos));
+               result.push_back(s.substr(pos + 3));
+       }
+       else
+       {
+               result.push_back(L"");
+               result.push_back(s);
+       }
+
+       return result;
+}
+
 template<typename T, typename C>
 typename std::enable_if<!std::is_convertible<T, std::wstring>::value, typename std::decay<T>::type>::type get_param(const std::wstring& name, C&& params, T fail_value = T())
-{      
+{
        auto it = std::find_if(std::begin(params), std::end(params), param_comparer(name));
-       if(it == params.end())  
+       if(it == params.end())
                return fail_value;
-       
+
        try
        {
                if(++it == params.end())
                        throw std::out_of_range("");
 
-               return boost::lexical_cast<std::decay<T>::type>(*it);
+               return boost::lexical_cast<typename std::decay<T>::type>(*it);
        }
        catch(...)
-       {               
-               CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("Failed to parse param.") << arg_name_info(name) << nested_exception(std::current_exception()));
+       {
+               CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Failed to parse param " + name) << nested_exception(std::current_exception()));
        }
 }
 
 template<typename C>
 std::wstring get_param(const std::wstring& name, C&& params, const std::wstring& fail_value = L"")
-{      
+{
        auto it = std::find_if(std::begin(params), std::end(params), param_comparer(name));
-       if(it == params.end())  
+       if(it == params.end())
                return fail_value;
-       
+
        try
        {
                if(++it == params.end())
                        throw std::out_of_range("");
 
-               return *it;     
+               return *it;
        }
        catch(...)
-       {               
-               CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("Failed to parse param.") << arg_name_info(name) << nested_exception(std::current_exception()));
+       {
+               CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Failed to parse param " + name) << nested_exception(std::current_exception()));
        }
 }
 
-}
\ No newline at end of file
+}