-/*\r
-* copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
-*\r
-* This file is part of CasparCG.\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
-*\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
-*/\r
-\r
-#include "../StdAfx.h"\r
-\r
-#include "frame_producer.h"\r
-#include "frame/basic_frame.h"\r
-#include "frame/frame_transform.h"\r
-\r
-#include "color/color_producer.h"\r
-#include "separated/separated_producer.h"\r
-\r
-#include <common/memory/safe_ptr.h>\r
-#include <common/concurrency/executor.h>\r
-#include <common/exception/exceptions.h>\r
-#include <common/utility/move_on_copy.h>\r
-\r
-namespace caspar { namespace core {\r
- \r
-std::vector<const producer_factory_t> g_factories;\r
- \r
-class destroy_producer_proxy : public frame_producer\r
-{ \r
- std::shared_ptr<frame_producer>* producer_;\r
-public:\r
- destroy_producer_proxy(safe_ptr<frame_producer>&& producer) \r
- : producer_(new std::shared_ptr<frame_producer>(std::move(producer)))\r
- {\r
- }\r
-\r
- ~destroy_producer_proxy()\r
- { \r
- static auto destroyers = std::make_shared<tbb::concurrent_bounded_queue<std::shared_ptr<executor>>>();\r
- static tbb::atomic<int> destroyer_count;\r
-\r
- try\r
- {\r
- std::shared_ptr<executor> destroyer;\r
- if(!destroyers->try_pop(destroyer))\r
- {\r
- destroyer.reset(new executor(L"destroyer"));\r
- destroyer->set_priority_class(below_normal_priority_class);\r
- if(++destroyer_count > 16)\r
- CASPAR_LOG(warning) << L"Potential destroyer dead-lock detected.";\r
- CASPAR_LOG(trace) << "Created destroyer: " << destroyer_count;\r
- }\r
- \r
- auto producer = producer_;\r
- auto pool = destroyers;\r
- destroyer->begin_invoke([=]\r
- {\r
- try\r
- {\r
- if(!producer->unique())\r
- CASPAR_LOG(trace) << (*producer)->print() << L" Not destroyed on safe asynchronous destruction thread: " << producer->use_count();\r
- else\r
- CASPAR_LOG(trace) << (*producer)->print() << L" Destroying on safe asynchronous destruction thread.";\r
- }\r
- catch(...){}\r
-\r
- delete producer;\r
- pool->push(destroyer);\r
- }); \r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- try\r
- {\r
- delete producer_;\r
- }\r
- catch(...){}\r
- }\r
- }\r
-\r
- virtual safe_ptr<basic_frame> receive(int hints) {return (*producer_)->receive(hints);}\r
- virtual safe_ptr<basic_frame> last_frame() const {return (*producer_)->last_frame();}\r
- virtual std::wstring print() const {return (*producer_)->print();}\r
- virtual void param(const std::wstring& str) {(*producer_)->param(str);}\r
- virtual safe_ptr<frame_producer> get_following_producer() const {return (*producer_)->get_following_producer();}\r
- virtual void set_leading_producer(const safe_ptr<frame_producer>& producer) {(*producer_)->set_leading_producer(producer);}\r
- virtual int64_t nb_frames() const {return (*producer_)->nb_frames();}\r
-};\r
-\r
-safe_ptr<core::frame_producer> create_destroy_proxy(safe_ptr<core::frame_producer>&& producer)\r
-{\r
- return make_safe<destroy_producer_proxy>(std::move(producer));\r
-}\r
-\r
-class last_frame_producer : public frame_producer\r
-{\r
- const std::wstring print_;\r
- const safe_ptr<basic_frame> frame_;\r
- const int64_t nb_frames_;\r
-public:\r
- last_frame_producer(const safe_ptr<frame_producer>& producer) \r
- : print_(producer->print())\r
- , frame_(producer->last_frame() != basic_frame::eof() ? producer->last_frame() : basic_frame::empty())\r
- , nb_frames_(producer->nb_frames())\r
- {\r
- }\r
- \r
- virtual safe_ptr<basic_frame> receive(int){return frame_;}\r
- virtual safe_ptr<core::basic_frame> last_frame() const{return frame_;}\r
- virtual std::wstring print() const{return L"dummy[" + print_ + L"]";}\r
- virtual int64_t nb_frames() const {return nb_frames_;} \r
-};\r
-\r
-struct empty_frame_producer : public frame_producer\r
-{\r
- virtual safe_ptr<basic_frame> receive(int){return basic_frame::empty();}\r
- virtual safe_ptr<basic_frame> last_frame() const{return basic_frame::empty();}\r
- virtual void set_frame_factory(const safe_ptr<frame_factory>&){}\r
- virtual int64_t nb_frames() const {return 0;}\r
- virtual std::wstring print() const { return L"empty";}\r
-};\r
-\r
-const safe_ptr<frame_producer>& frame_producer::empty() // nothrow\r
-{\r
- static safe_ptr<frame_producer> producer = make_safe<empty_frame_producer>();\r
- return producer;\r
-} \r
-\r
-safe_ptr<basic_frame> receive_and_follow(safe_ptr<frame_producer>& producer, int hints)\r
-{ \r
- auto frame = producer->receive(hints);\r
- if(frame == basic_frame::eof())\r
- {\r
- CASPAR_LOG(info) << producer->print() << " End Of File.";\r
- auto following = producer->get_following_producer();\r
- if(following != frame_producer::empty())\r
- {\r
- following->set_leading_producer(producer);\r
- producer = std::move(following);\r
- }\r
- else\r
- producer = make_safe<last_frame_producer>(producer);\r
-\r
- return receive_and_follow(producer, hints);\r
- }\r
- return frame;\r
-}\r
-\r
-void register_producer_factory(const producer_factory_t& factory)\r
-{\r
- g_factories.push_back(factory);\r
-}\r
-\r
-safe_ptr<core::frame_producer> do_create_producer(const safe_ptr<frame_factory>& my_frame_factory, const std::vector<std::wstring>& params)\r
-{\r
- if(params.empty())\r
- BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("params") << arg_value_info(""));\r
- \r
- auto producer = frame_producer::empty();\r
- std::any_of(g_factories.begin(), g_factories.end(), [&](const producer_factory_t& factory) -> bool\r
- {\r
- try\r
- {\r
- producer = factory(my_frame_factory, params);\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- }\r
- return producer != frame_producer::empty();\r
- });\r
-\r
- if(producer == frame_producer::empty())\r
- producer = create_color_producer(my_frame_factory, params);\r
- \r
- return producer;\r
-}\r
-\r
-\r
-safe_ptr<core::frame_producer> create_producer(const safe_ptr<frame_factory>& my_frame_factory, const std::vector<std::wstring>& params)\r
-{ \r
- auto producer = do_create_producer(my_frame_factory, params);\r
- auto key_producer = frame_producer::empty();\r
- \r
- try // to find a key file.\r
- {\r
- auto params_copy = params;\r
- if(params_copy.size() > 0)\r
- {\r
- params_copy[0] += L"_A";\r
- key_producer = do_create_producer(my_frame_factory, params_copy); \r
- if(key_producer == frame_producer::empty())\r
- {\r
- params_copy[0] += L"LPHA";\r
- key_producer = do_create_producer(my_frame_factory, params_copy); \r
- }\r
- }\r
- }\r
- catch(...){}\r
-\r
- if(producer != frame_producer::empty() && key_producer != frame_producer::empty())\r
- return create_separated_producer(producer, key_producer);\r
- \r
- if(producer == frame_producer::empty())\r
- {\r
- std::wstring str;\r
- BOOST_FOREACH(auto& param, params)\r
- str += param + L" ";\r
- BOOST_THROW_EXCEPTION(file_not_found() << msg_info("No match found for supplied commands. Check syntax.") << arg_value_info(narrow(str)));\r
- }\r
-\r
- return producer;\r
-}\r
-\r
-}}
\ No newline at end of file
+/*
+* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
+*
+* This file is part of CasparCG (www.casparcg.com).
+*
+* CasparCG is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* CasparCG is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
+*
+* Author: Robert Nagy, ronag89@gmail.com
+*/
+
+#include "../StdAfx.h"
+
+#include "frame_producer.h"
+
+#include "../frame/draw_frame.h"
+#include "../frame/frame_transform.h"
+
+#include "color/color_producer.h"
+#include "separated/separated_producer.h"
+#include "variable.h"
+
+#include <common/assert.h>
+#include <common/except.h>
+#include <common/executor.h>
+#include <common/future.h>
+#include <common/memory.h>
+
+#include <boost/thread.hpp>
+
+namespace caspar { namespace core {
+struct frame_producer_registry::impl
+{
+ std::vector<producer_factory_t> producer_factories;
+ std::vector<thumbnail_producer_t> thumbnail_producers;
+ spl::shared_ptr<help_repository> help_repo;
+
+ impl(spl::shared_ptr<help_repository> help_repo)
+ : help_repo(std::move(help_repo))
+ {
+ }
+};
+
+frame_producer_registry::frame_producer_registry(spl::shared_ptr<help_repository> help_repo)
+ : impl_(new impl(std::move(help_repo)))
+{
+}
+
+void frame_producer_registry::register_producer_factory(std::wstring name, const producer_factory_t& factory, const help_item_describer& describer)
+{
+ impl_->producer_factories.push_back(factory);
+ impl_->help_repo->register_item({ L"producer" }, std::move(name), describer);
+}
+
+void frame_producer_registry::register_thumbnail_producer(const thumbnail_producer_t& thumbnail_producer)
+{
+ impl_->thumbnail_producers.push_back(thumbnail_producer);
+}
+
+frame_producer_dependencies::frame_producer_dependencies(
+ const spl::shared_ptr<core::frame_factory>& frame_factory,
+ const std::vector<spl::shared_ptr<video_channel>>& channels,
+ const video_format_desc& format_desc,
+ const spl::shared_ptr<const frame_producer_registry> producer_registry)
+ : frame_factory(frame_factory)
+ , channels(channels)
+ , format_desc(format_desc)
+ , producer_registry(producer_registry)
+{
+}
+
+constraints::constraints(double width, double height)
+ : width(width), height(height)
+{
+}
+
+constraints::constraints()
+{
+}
+
+struct frame_producer_base::impl
+{
+ tbb::atomic<uint32_t> frame_number_;
+ tbb::atomic<bool> paused_;
+ frame_producer_base& self_;
+ draw_frame last_frame_;
+
+ impl(frame_producer_base& self)
+ : self_(self)
+ , last_frame_(draw_frame::empty())
+ {
+ frame_number_ = 0;
+ paused_ = false;
+ }
+
+ draw_frame receive()
+ {
+ if(paused_)
+ return self_.last_frame();
+
+ auto frame = self_.receive_impl();
+ if(frame == draw_frame::late())
+ return self_.last_frame();
+
+ ++frame_number_;
+
+ return last_frame_ = draw_frame::push(frame);
+ }
+
+ void paused(bool value)
+ {
+ paused_ = value;
+ }
+
+ draw_frame last_frame()
+ {
+ return draw_frame::still(last_frame_);
+ }
+};
+
+frame_producer_base::frame_producer_base() : impl_(new impl(*this))
+{
+}
+
+draw_frame frame_producer_base::receive()
+{
+ return impl_->receive();
+}
+
+void frame_producer_base::paused(bool value)
+{
+ impl_->paused(value);
+}
+
+draw_frame frame_producer_base::last_frame()
+{
+ return impl_->last_frame();
+}
+
+std::future<std::wstring> frame_producer_base::call(const std::vector<std::wstring>&)
+{
+ CASPAR_THROW_EXCEPTION(not_supported());
+}
+
+uint32_t frame_producer_base::nb_frames() const
+{
+ return std::numeric_limits<uint32_t>::max();
+}
+
+uint32_t frame_producer_base::frame_number() const
+{
+ return impl_->frame_number_;
+}
+
+variable& frame_producer_base::get_variable(const std::wstring& name)
+{
+ CASPAR_THROW_EXCEPTION(user_error()
+ << msg_info(L"No variable called " + name + L" found in " + print()));
+}
+
+const std::vector<std::wstring>& frame_producer_base::get_variables() const
+{
+ static std::vector<std::wstring> empty;
+
+ return empty;
+}
+
+const spl::shared_ptr<frame_producer>& frame_producer::empty()
+{
+ class empty_frame_producer : public frame_producer
+ {
+ public:
+ empty_frame_producer(){}
+ draw_frame receive() override{return draw_frame::empty();}
+ void paused(bool value) override{}
+ uint32_t nb_frames() const override {return 0;}
+ std::wstring print() const override { return L"empty";}
+ monitor::subject& monitor_output() override {static monitor::subject monitor_subject(""); return monitor_subject;}
+ std::wstring name() const override {return L"empty";}
+ uint32_t frame_number() const override {return 0;}
+ std::future<std::wstring> call(const std::vector<std::wstring>& params) override{CASPAR_THROW_EXCEPTION(not_implemented());}
+ variable& get_variable(const std::wstring& name) override { CASPAR_THROW_EXCEPTION(not_implemented()); }
+ const std::vector<std::wstring>& get_variables() const override { static std::vector<std::wstring> empty; return empty; }
+ draw_frame last_frame() {return draw_frame::empty();}
+ constraints& pixel_constraints() override { static constraints c; return c; }
+
+ boost::property_tree::wptree info() const override
+ {
+ boost::property_tree::wptree info;
+ info.add(L"type", L"empty-producer");
+ return info;
+ }
+ };
+
+ static spl::shared_ptr<frame_producer> producer = spl::make_shared<empty_frame_producer>();
+ return producer;
+}
+
+tbb::atomic<bool>& destroy_producers_in_separate_thread()
+{
+ static tbb::atomic<bool> state;
+
+ return state;
+}
+
+void destroy_producers_synchronously()
+{
+ destroy_producers_in_separate_thread() = false;
+}
+
+class destroy_producer_proxy : public frame_producer
+{
+ std::shared_ptr<frame_producer> producer_;
+public:
+ destroy_producer_proxy(spl::shared_ptr<frame_producer>&& producer)
+ : producer_(std::move(producer))
+ {
+ destroy_producers_in_separate_thread() = true;
+ }
+
+ virtual ~destroy_producer_proxy()
+ {
+ static tbb::atomic<int> counter;
+ static std::once_flag counter_init_once;
+ std::call_once(counter_init_once, []{ counter = 0; });
+
+ if(producer_ == core::frame_producer::empty() || !destroy_producers_in_separate_thread())
+ return;
+
+ ++counter;
+ CASPAR_VERIFY(counter < 8);
+
+ auto producer = new spl::shared_ptr<frame_producer>(std::move(producer_));
+ boost::thread([=]
+ {
+ std::unique_ptr<spl::shared_ptr<frame_producer>> pointer_guard(producer);
+ auto str = (*producer)->print();
+ try
+ {
+ ensure_gpf_handler_installed_for_thread(u8(L"Destroyer: " + str).c_str());
+
+ if (!producer->unique())
+ CASPAR_LOG(debug) << str << L" Not destroyed on asynchronous destruction thread: " << producer->use_count();
+ else
+ CASPAR_LOG(debug) << str << L" Destroying on asynchronous destruction thread.";
+ }
+ catch(...){}
+
+ try
+ {
+ pointer_guard.reset();
+ CASPAR_LOG(info) << str << L" Destroyed.";
+ }
+ catch(...)
+ {
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ }
+
+ --counter;
+ }).detach();
+ }
+
+ draw_frame receive() override {return producer_->receive();}
+ std::wstring print() const override {return producer_->print();}
+ void paused(bool value) override {producer_->paused(value);}
+ std::wstring name() const override {return producer_->name();}
+ uint32_t frame_number() const override {return producer_->frame_number();}
+ boost::property_tree::wptree info() const override {return producer_->info();}
+ std::future<std::wstring> call(const std::vector<std::wstring>& params) override {return producer_->call(params);}
+ variable& get_variable(const std::wstring& name) override {return producer_->get_variable(name);}
+ const std::vector<std::wstring>& get_variables() const override {return producer_->get_variables();}
+ void leading_producer(const spl::shared_ptr<frame_producer>& producer) override {return producer_->leading_producer(producer);}
+ uint32_t nb_frames() const override {return producer_->nb_frames();}
+ draw_frame last_frame() {return producer_->last_frame();}
+ monitor::subject& monitor_output() override {return producer_->monitor_output();}
+ bool collides(double x, double y) const override {return producer_->collides(x, y);}
+ void on_interaction(const interaction_event::ptr& event) override {return producer_->on_interaction(event);}
+ constraints& pixel_constraints() override {return producer_->pixel_constraints();}
+};
+
+spl::shared_ptr<core::frame_producer> create_destroy_proxy(spl::shared_ptr<core::frame_producer> producer)
+{
+ return spl::make_shared<destroy_producer_proxy>(std::move(producer));
+}
+
+spl::shared_ptr<core::frame_producer> do_create_producer(const frame_producer_dependencies& dependencies, const std::vector<std::wstring>& params, const std::vector<producer_factory_t>& factories, bool throw_on_fail = false)
+{
+ if(params.empty())
+ CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("params cannot be empty"));
+
+ auto producer = frame_producer::empty();
+ std::any_of(factories.begin(), factories.end(), [&](const producer_factory_t& factory) -> bool
+ {
+ try
+ {
+ producer = factory(dependencies, params);
+ }
+ catch (user_error&)
+ {
+ throw;
+ }
+ catch(...)
+ {
+ if(throw_on_fail)
+ throw;
+ else
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ }
+ return producer != frame_producer::empty();
+ });
+
+ if(producer == frame_producer::empty())
+ producer = create_color_producer(dependencies.frame_factory, params);
+
+ if(producer == frame_producer::empty())
+ return producer;
+
+ return producer;
+}
+
+draw_frame do_create_thumbnail_frame(
+ const frame_producer_dependencies& dependencies,
+ const std::wstring& media_file,
+ const std::vector<thumbnail_producer_t>& thumbnail_producers)
+{
+ for (auto& thumbnail_producer : thumbnail_producers)
+ {
+ auto frame = thumbnail_producer(dependencies, media_file);
+
+ if (frame != draw_frame::empty())
+ return frame;
+ }
+
+ return draw_frame::empty();
+}
+
+draw_frame frame_producer_registry::create_thumbnail(const frame_producer_dependencies& dependencies, const std::wstring& media_file) const
+{
+ auto& thumbnail_producers = impl_->thumbnail_producers;
+ std::vector<std::wstring> params;
+ params.push_back(media_file);
+
+ auto fill_frame = do_create_thumbnail_frame(dependencies, media_file, thumbnail_producers);
+ auto key_frame = do_create_thumbnail_frame(dependencies, media_file + L"_A", thumbnail_producers);
+
+ if (key_frame == draw_frame::empty())
+ key_frame = do_create_thumbnail_frame(dependencies, media_file + L"_ALPHA", thumbnail_producers);
+
+ if (fill_frame != draw_frame::empty() && key_frame != draw_frame::empty())
+ return draw_frame::mask(fill_frame, key_frame);
+
+ return fill_frame;
+}
+
+spl::shared_ptr<core::frame_producer> frame_producer_registry::create_producer(const frame_producer_dependencies& dependencies, const std::vector<std::wstring>& params) const
+{
+ auto& producer_factories = impl_->producer_factories;
+ auto producer = do_create_producer(dependencies, params, producer_factories);
+ auto key_producer = frame_producer::empty();
+
+ if (!params.empty() && !boost::contains(params.at(0), L"://"))
+ {
+ try // to find a key file.
+ {
+ auto params_copy = params;
+ if (params_copy.size() > 0)
+ {
+ params_copy[0] += L"_A";
+ key_producer = do_create_producer(dependencies, params_copy, producer_factories);
+ if (key_producer == frame_producer::empty())
+ {
+ params_copy[0] += L"LPHA";
+ key_producer = do_create_producer(dependencies, params_copy, producer_factories);
+ }
+ }
+ }
+ catch (...) {}
+ }
+
+ if(producer != frame_producer::empty() && key_producer != frame_producer::empty())
+ return create_separated_producer(producer, key_producer);
+
+ if(producer == frame_producer::empty())
+ {
+ std::wstring str;
+ for (auto& param : params)
+ str += param + L" ";
+ CASPAR_THROW_EXCEPTION(file_not_found() << msg_info("No match found for supplied commands. Check syntax.") << arg_value_info(u8(str)));
+ }
+
+ return producer;
+}
+
+
+spl::shared_ptr<core::frame_producer> frame_producer_registry::create_producer(const frame_producer_dependencies& dependencies, const std::wstring& params) const
+{
+ std::wstringstream iss(params);
+ std::vector<std::wstring> tokens;
+ typedef std::istream_iterator<std::wstring, wchar_t, std::char_traits<wchar_t> > iterator;
+ std::copy(iterator(iss), iterator(), std::back_inserter(tokens));
+ return create_producer(dependencies, tokens);
+}
+}}
projects / casparcg / blobdiff