1 #ifndef AUDIOGRAPHER_LISTED_SOURCE_H
2 #define AUDIOGRAPHER_LISTED_SOURCE_H
4 #include "audiographer/types.h"
5 #include "audiographer/source.h"
12 /// An generic \a Source that uses a \a std::list for managing outputs
13 template<typename T = DefaultSampleType>
14 class ListedSource : public Source<T>
17 void add_output (typename Source<T>::SinkPtr output) { outputs.push_back(output); }
18 void clear_outputs () { outputs.clear(); }
19 void remove_output (typename Source<T>::SinkPtr output) { outputs.remove(output); }
23 typedef std::list<typename Source<T>::SinkPtr> SinkList;
25 /// Helper for derived classes
26 void output (ProcessContext<T> const & c)
28 for (typename SinkList::iterator i = outputs.begin(); i != outputs.end(); ++i) {
33 void output (ProcessContext<T> & c)
35 if (output_size_is_one()) {
36 // only one output, so we can keep this non-const
37 outputs.front()->process (c);
39 output (const_cast<ProcessContext<T> const &> (c));
43 inline bool output_size_is_one () { return (!outputs.empty() && ++outputs.begin() == outputs.end()); }
50 #endif //AUDIOGRAPHER_LISTED_SOURCE_H