-/*\r
-* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
-*\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
-*\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
-\r
-#include "../stdafx.h"\r
-\r
-#include "layer.h"\r
-\r
-#include "frame_producer.h"\r
-\r
-#include "../video_format.h"\r
-#include "../frame/draw_frame.h"\r
-#include "../frame/frame_transform.h"\r
-\r
-#include <boost/optional.hpp>\r
-#include <boost/thread/future.hpp>\r
-\r
-namespace caspar { namespace core {\r
-\r
-struct layer::impl\r
-{ \r
- monitor::basic_subject event_subject_;\r
- monitor::basic_subject foreground_event_subject_;\r
- monitor::basic_subject background_event_subject_;\r
- spl::shared_ptr<frame_producer> foreground_;\r
- spl::shared_ptr<frame_producer> background_;\r
- boost::optional<int32_t> auto_play_delta_;\r
-\r
-public:\r
- impl(int index) \r
- : event_subject_(monitor::path("layer") % index)\r
- , foreground_event_subject_("")\r
- , background_event_subject_("background")\r
- , foreground_(frame_producer::empty())\r
- , background_(frame_producer::empty())\r
- {\r
- foreground_event_subject_.subscribe(event_subject_);\r
- background_event_subject_.subscribe(event_subject_);\r
- }\r
-\r
- void pause()\r
- {\r
- foreground_->paused(true);\r
- }\r
- \r
- void load(spl::shared_ptr<frame_producer> producer, bool preview, const boost::optional<int32_t>& auto_play_delta)\r
- { \r
- background_->unsubscribe(background_event_subject_);\r
- background_ = std::move(producer);\r
- background_->subscribe(background_event_subject_);\r
-\r
- auto_play_delta_ = auto_play_delta;\r
-\r
- if(preview)\r
- {\r
- play();\r
- foreground_->paused(true);\r
- }\r
-\r
- if(auto_play_delta_ && foreground_ == frame_producer::empty())\r
- play();\r
- }\r
- \r
- void play()\r
- { \r
- if(background_ != frame_producer::empty())\r
- {\r
- background_->leading_producer(foreground_);\r
-\r
- background_->unsubscribe(background_event_subject_);\r
- foreground_->unsubscribe(foreground_event_subject_);\r
-\r
- foreground_ = std::move(background_);\r
- background_ = std::move(frame_producer::empty());\r
- \r
- foreground_->subscribe(foreground_event_subject_);\r
-\r
- auto_play_delta_.reset();\r
- }\r
-\r
- foreground_->paused(false);\r
- }\r
- \r
- void stop()\r
- {\r
- foreground_->unsubscribe(foreground_event_subject_);\r
-\r
- foreground_ = std::move(frame_producer::empty());\r
-\r
- auto_play_delta_.reset();\r
- }\r
- \r
- draw_frame receive(const video_format_desc& format_desc)\r
- { \r
- try\r
- { \r
- auto frame = foreground_->receive();\r
- \r
- if(frame == core::draw_frame::late())\r
- return foreground_->last_frame();\r
- \r
- if(auto_play_delta_)\r
- {\r
- auto frames_left = static_cast<int64_t>(foreground_->nb_frames()) - foreground_->frame_number() - static_cast<int64_t>(*auto_play_delta_);\r
- if(frames_left < 1)\r
- {\r
- play();\r
- return receive(format_desc);\r
- }\r
- }\r
-\r
- event_subject_ << monitor::event("time") % monitor::duration(foreground_->frame_number()/format_desc.fps)\r
- % monitor::duration(static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(auto_play_delta_ ? *auto_play_delta_ : 0)/format_desc.fps)\r
- << monitor::event("frame") % static_cast<int64_t>(foreground_->frame_number())\r
- % static_cast<int64_t>((static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(auto_play_delta_ ? *auto_play_delta_ : 0)));\r
-\r
- foreground_event_subject_ << monitor::event("type") % foreground_->name();\r
- background_event_subject_ << monitor::event("type") % background_->name();\r
- \r
- return frame;\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- stop();\r
- return core::draw_frame::empty();\r
- }\r
- }\r
- \r
- boost::property_tree::wptree info() const\r
- {\r
- boost::property_tree::wptree info;\r
- info.add(L"auto_delta", (auto_play_delta_ ? boost::lexical_cast<std::wstring>(*auto_play_delta_) : L"null"));\r
- info.add(L"frame-number", foreground_->frame_number());\r
-\r
- auto nb_frames = foreground_->nb_frames();\r
-\r
- info.add(L"nb_frames", nb_frames == std::numeric_limits<int64_t>::max() ? -1 : nb_frames);\r
- info.add(L"frames-left", nb_frames == std::numeric_limits<int64_t>::max() ? -1 : (foreground_->nb_frames() - foreground_->frame_number() - (auto_play_delta_ ? *auto_play_delta_ : 0)));\r
- info.add_child(L"producer", foreground_->info());\r
- info.add_child(L"background.producer", background_->info());\r
- return info;\r
- }\r
-};\r
-\r
-layer::layer(int index) : impl_(new impl(index)){}\r
-layer::layer(layer&& other) : impl_(std::move(other.impl_)){}\r
-layer& layer::operator=(layer&& other)\r
-{\r
- other.swap(*this);\r
- return *this;\r
-}\r
-void layer::swap(layer& other)\r
-{ \r
- impl_.swap(other.impl_);\r
-}\r
-void layer::load(spl::shared_ptr<frame_producer> frame_producer, bool preview, const boost::optional<int32_t>& auto_play_delta){return impl_->load(std::move(frame_producer), preview, auto_play_delta);} \r
-void layer::play(){impl_->play();}\r
-void layer::pause(){impl_->pause();}\r
-void layer::stop(){impl_->stop();}\r
-draw_frame layer::receive(const video_format_desc& format_desc) {return impl_->receive(format_desc);}\r
-spl::shared_ptr<frame_producer> layer::foreground() const { return impl_->foreground_;}\r
-spl::shared_ptr<frame_producer> layer::background() const { return impl_->background_;}\r
-boost::property_tree::wptree layer::info() const{return impl_->info();}\r
-void layer::subscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.subscribe(o);}\r
-void layer::unsubscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.unsubscribe(o);}\r
+/*
+* 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 "layer.h"
+
+#include "frame_producer.h"
+
+#include "../video_format.h"
+#include "../frame/draw_frame.h"
+#include "../frame/frame_transform.h"
+
+#include <boost/optional.hpp>
+#include <boost/thread/future.hpp>
+
+namespace caspar { namespace core {
+
+struct layer::impl
+{
+ monitor::basic_subject event_subject_;
+ monitor::basic_subject foreground_event_subject_;
+ monitor::basic_subject background_event_subject_;
+ spl::shared_ptr<frame_producer> foreground_;
+ spl::shared_ptr<frame_producer> background_;
+ boost::optional<int32_t> auto_play_delta_;
+
+public:
+ impl(int index)
+ : event_subject_(monitor::path("layer") % index)
+ , foreground_event_subject_("")
+ , background_event_subject_("background")
+ , foreground_(frame_producer::empty())
+ , background_(frame_producer::empty())
+ {
+ foreground_event_subject_.subscribe(event_subject_);
+ background_event_subject_.subscribe(event_subject_);
+ }
+
+ void pause()
+ {
+ foreground_->paused(true);
+ }
+
+ void load(spl::shared_ptr<frame_producer> producer, bool preview, const boost::optional<int32_t>& auto_play_delta)
+ {
+ background_->unsubscribe(background_event_subject_);
+ background_ = std::move(producer);
+ background_->subscribe(background_event_subject_);
+
+ auto_play_delta_ = auto_play_delta;
+
+ if(preview)
+ {
+ play();
+ foreground_->paused(true);
+ }
+
+ if(auto_play_delta_ && foreground_ == frame_producer::empty())
+ play();
+ }
+
+ void play()
+ {
+ if(background_ != frame_producer::empty())
+ {
+ background_->leading_producer(foreground_);
+
+ background_->unsubscribe(background_event_subject_);
+ foreground_->unsubscribe(foreground_event_subject_);
+
+ foreground_ = std::move(background_);
+ background_ = std::move(frame_producer::empty());
+
+ foreground_->subscribe(foreground_event_subject_);
+
+ auto_play_delta_.reset();
+ }
+
+ foreground_->paused(false);
+ }
+
+ void stop()
+ {
+ foreground_->unsubscribe(foreground_event_subject_);
+
+ foreground_ = std::move(frame_producer::empty());
+
+ auto_play_delta_.reset();
+ }
+
+ draw_frame receive(const video_format_desc& format_desc)
+ {
+ try
+ {
+ auto frame = foreground_->receive();
+
+ if(frame == core::draw_frame::late())
+ return foreground_->last_frame();
+
+ if(auto_play_delta_)
+ {
+ auto frames_left = static_cast<int64_t>(foreground_->nb_frames()) - foreground_->frame_number() - static_cast<int64_t>(*auto_play_delta_);
+ if(frames_left < 1)
+ {
+ play();
+ return receive(format_desc);
+ }
+ }
+
+ event_subject_ << monitor::event("time") % monitor::duration(foreground_->frame_number()/format_desc.fps)
+ % monitor::duration(static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(auto_play_delta_ ? *auto_play_delta_ : 0)/format_desc.fps)
+ << monitor::event("frame") % static_cast<int64_t>(foreground_->frame_number())
+ % static_cast<int64_t>((static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(auto_play_delta_ ? *auto_play_delta_ : 0)));
+
+ foreground_event_subject_ << monitor::event("type") % foreground_->name();
+ background_event_subject_ << monitor::event("type") % background_->name();
+
+ return frame;
+ }
+ catch(...)
+ {
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ stop();
+ return core::draw_frame::empty();
+ }
+ }
+
+ boost::property_tree::wptree info() const
+ {
+ boost::property_tree::wptree info;
+ info.add(L"auto_delta", (auto_play_delta_ ? boost::lexical_cast<std::wstring>(*auto_play_delta_) : L"null"));
+ info.add(L"frame-number", foreground_->frame_number());
+
+ auto nb_frames = foreground_->nb_frames();
+
+ info.add(L"nb_frames", nb_frames == std::numeric_limits<int64_t>::max() ? -1 : nb_frames);
+ info.add(L"frames-left", nb_frames == std::numeric_limits<int64_t>::max() ? -1 : (foreground_->nb_frames() - foreground_->frame_number() - (auto_play_delta_ ? *auto_play_delta_ : 0)));
+ info.add_child(L"producer", foreground_->info());
+ info.add_child(L"background.producer", background_->info());
+ return info;
+ }
+};
+
+layer::layer(int index) : impl_(new impl(index)){}
+layer::layer(layer&& other) : impl_(std::move(other.impl_)){}
+layer& layer::operator=(layer&& other)
+{
+ other.swap(*this);
+ return *this;
+}
+void layer::swap(layer& other)
+{
+ impl_.swap(other.impl_);
+}
+void layer::load(spl::shared_ptr<frame_producer> frame_producer, bool preview, const boost::optional<int32_t>& auto_play_delta){return impl_->load(std::move(frame_producer), preview, auto_play_delta);}
+void layer::play(){impl_->play();}
+void layer::pause(){impl_->pause();}
+void layer::stop(){impl_->stop();}
+draw_frame layer::receive(const video_format_desc& format_desc) {return impl_->receive(format_desc);}
+spl::shared_ptr<frame_producer> layer::foreground() const { return impl_->foreground_;}
+spl::shared_ptr<frame_producer> layer::background() const { return impl_->background_;}
+boost::property_tree::wptree layer::info() const{return impl_->info();}
+void layer::subscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.subscribe(o);}
+void layer::unsubscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.unsubscribe(o);}
}}
\ No newline at end of file
projects / casparcg / blobdiff