/*\r
-* copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
+* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
*\r
-* This file is part of CasparCG.\r
+* This file is part of CasparCG (www.casparcg.com).\r
*\r
-* CasparCG is free software: you can redistribute it and/or modify\r
-* it under the terms of the GNU General Public License as published by\r
-* the Free Software Foundation, either version 3 of the License, or\r
-* (at your option) any later version.\r
+* CasparCG is free software: you can redistribute it and/or modify\r
+* it under the terms of the GNU General Public License as published by\r
+* the Free Software Foundation, either version 3 of the License, or\r
+* (at your option) any later version.\r
*\r
-* CasparCG is distributed in the hope that it will be useful,\r
-* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-* GNU General Public License for more details.\r
-\r
-* You should have received a copy of the GNU General Public License\r
-* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
+* CasparCG is distributed in the hope that it will be useful,\r
+* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+* GNU General Public License for more details.\r
+*\r
+* You should have received a copy of the GNU General Public License\r
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
*\r
+* Author: Robert Nagy, ronag89@gmail.com\r
*/\r
-#pragma once\r
\r
-#include "../processor/draw_frame.h"\r
-#include "../processor/frame_processor_device.h"\r
+#pragma once\r
\r
-#include <common/utility/safe_ptr.h>\r
+#include <common/memory/safe_ptr.h>\r
\r
#include <boost/noncopyable.hpp>\r
\r
+#include <algorithm>\r
+#include <functional>\r
#include <string>\r
-#include <ostream>\r
+#include <vector>\r
+#include <stdint.h>\r
+#include <numeric>\r
+\r
+#include <boost/thread/future.hpp>\r
+#include <boost/property_tree/ptree_fwd.hpp>\r
+\r
+namespace caspar { \r
+ \r
+class executor;\r
+ \r
+namespace core {\r
\r
-namespace caspar { namespace core {\r
+class basic_frame;\r
+struct frame_factory;\r
\r
-class frame_producer : boost::noncopyable\r
+struct frame_producer : boost::noncopyable\r
{\r
public:\r
+ enum hints\r
+ {\r
+ NO_HINT = 0,\r
+ ALPHA_HINT = 1,\r
+ DEINTERLACE_HINT\r
+ };\r
+\r
virtual ~frame_producer(){} \r
\r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- /// \fn virtual draw_frame :::receive() = 0;\r
- ///\r
- /// \brief Renders a frame.\r
- /// \r
- /// \note This function is run in through the tbb task_schedular and shall be *non blocking*.\r
- ///\r
- /// \return The frame. \r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- virtual safe_ptr<draw_frame> receive() = 0;\r
-\r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- /// \fn virtual std::shared_ptr<frame_producer> :::get_following_producer() const\r
- ///\r
- /// \brief Gets the producer which will replace the current producer on EOF. \r
- ///\r
- /// \return The following producer, or nullptr if there is no following producer. \r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
+ virtual std::wstring print() const = 0; // nothrow\r
+ virtual boost::property_tree::wptree info() const = 0;\r
+\r
+ virtual boost::unique_future<std::wstring> call(const std::wstring&) \r
+ {\r
+ boost::promise<std::wstring> promise;\r
+ promise.set_value(L"");\r
+ return promise.get_future();\r
+ }\r
+\r
virtual safe_ptr<frame_producer> get_following_producer() const {return frame_producer::empty();} // nothrow\r
+ virtual void set_leading_producer(const safe_ptr<frame_producer>&) {} // nothrow\r
+ \r
+ virtual int64_t nb_frames() const {return std::numeric_limits<int>::max();}\r
\r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- /// \fn virtual void :::set_leading_producer(const std::shared_ptr<frame_producer>& producer)\r
- ///\r
- /// \brief Sets the producer which was run before the current producer. \r
- ///\r
- /// \param producer The leading producer.\r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- virtual void set_leading_producer(const safe_ptr<frame_producer>& /*producer*/) {} // nothrow\r
+ virtual safe_ptr<basic_frame> receive(int hints) = 0;\r
+ virtual safe_ptr<core::basic_frame> last_frame() const = 0;\r
+\r
+ static const safe_ptr<frame_producer>& empty(); // nothrow\r
+};\r
+\r
+safe_ptr<basic_frame> receive_and_follow(safe_ptr<frame_producer>& producer, int hints);\r
+\r
+typedef std::function<safe_ptr<core::frame_producer>(const safe_ptr<frame_factory>&, const std::vector<std::wstring>&)> producer_factory_t;\r
+void register_producer_factory(const producer_factory_t& factory); // Not thread-safe.\r
+safe_ptr<core::frame_producer> create_producer(const safe_ptr<frame_factory>&, const std::vector<std::wstring>& params);\r
+safe_ptr<core::frame_producer> create_producer(const safe_ptr<frame_factory>&, const std::wstring& params);\r
+safe_ptr<core::frame_producer> create_producer_destroy_proxy(safe_ptr<core::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
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- /// \fn virtual void :::initialize(const safe_ptr<frame_processor_device>& frame_processor) = 0;\r
- ///\r
- /// \brief Provides the frame frame_processor used to create frames and initializes the producer. \r
- ///\r
- /// \param frame_processor The frame frame_processor. \r
- ////////////////////////////////////////////////////////////////////////////////////////////////////\r
- virtual void initialize(const safe_ptr<frame_processor_device>& frame_processor) = 0;\r
-\r
- static safe_ptr<frame_producer> empty() // nothrow\r
+ T value = fail_value;\r
+ try\r
{\r
- struct empty_frame_producer : public frame_producer\r
- {\r
- virtual safe_ptr<draw_frame> receive(){return draw_frame::eof();}\r
- virtual void initialize(const safe_ptr<frame_processor_device>&){}\r
- virtual std::wstring print() const { return L"empty";}\r
- };\r
- static safe_ptr<frame_producer> producer = make_safe<empty_frame_producer>();\r
- return producer;\r
+ value = boost::lexical_cast<std::decay<T>::type>(*it);\r
}\r
+ catch(boost::bad_lexical_cast&){}\r
\r
- virtual std::wstring print() const = 0; // nothrow\r
-};\r
-\r
-inline std::wostream& operator<<(std::wostream& out, const frame_producer& producer)\r
-{\r
- out << producer.print().c_str();\r
- return out;\r
+ return value;\r
}\r
\r
}}\r
projects / casparcg / blobdiff