-/*\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 "stage.h"\r
-\r
-#include "../video_channel_context.h"\r
-\r
-#include "layer.h"\r
-\r
-#include <core/producer/frame/basic_frame.h>\r
-#include <core/producer/frame/frame_factory.h>\r
-\r
-#include <common/concurrency/executor.h>\r
-\r
-#include <boost/range/algorithm.hpp>\r
-\r
-#include <tbb/parallel_for.h>\r
-\r
-#include <map>\r
-\r
-namespace caspar { namespace core {\r
- \r
-void destroy_producer(safe_ptr<frame_producer>& producer)\r
-{\r
- if(!producer.unique())\r
- CASPAR_LOG(warning) << producer->print() << L" Not destroyed on safe asynchronous destruction thread.";\r
- \r
- producer = frame_producer::empty();\r
-}\r
-\r
-class destroy_producer_proxy : public frame_producer\r
-{\r
- safe_ptr<frame_producer> producer_;\r
- executor& destroy_context_;\r
-public:\r
- destroy_producer_proxy(executor& destroy_context, const safe_ptr<frame_producer>& producer) \r
- : producer_(producer)\r
- , destroy_context_(destroy_context){}\r
-\r
- ~destroy_producer_proxy()\r
- { \r
- if(destroy_context_.size() > 4)\r
- CASPAR_LOG(error) << L" Potential destroyer deadlock.";\r
-\r
- destroy_context_.begin_invoke(std::bind(&destroy_producer, std::move(producer_)));\r
- }\r
-\r
- virtual safe_ptr<basic_frame> receive() {return core::receive(producer_);}\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
-};\r
-\r
-struct stage::implementation : boost::noncopyable\r
-{ \r
- std::map<int, layer> layers_; \r
- typedef std::map<int, layer>::value_type layer_t;\r
- \r
- video_channel_context& channel_;\r
-public:\r
- implementation(video_channel_context& video_channel) \r
- : channel_(video_channel)\r
- {\r
- }\r
- \r
- std::map<int, safe_ptr<basic_frame>> execute()\r
- { \r
- std::map<int, safe_ptr<basic_frame>> frames;\r
-\r
- try\r
- {\r
- // Allocate placeholders.\r
- BOOST_FOREACH(auto layer, layers_)\r
- frames[layer.first] = basic_frame::empty();\r
-\r
- // Render layers\r
- tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](layer_t& layer)\r
- {\r
- frames[layer.first] = layer.second.receive();\r
- });\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- }\r
- \r
- return frames;\r
- }\r
-\r
- void load(int index, const safe_ptr<frame_producer>& producer, bool preview)\r
- {\r
- channel_.execution().invoke([&]\r
- {\r
- layers_[index].load(make_safe<destroy_producer_proxy>(channel_.destruction(), producer), preview);\r
- CASPAR_LOG(info) << print() << " layer [ " << index << "] Loaded: " << producer << ".";\r
- });\r
- }\r
-\r
- void pause(int index)\r
- { \r
- channel_.execution().invoke([&]\r
- {\r
- layers_[index].pause();\r
- CASPAR_LOG(info) << print() << " layer [ " << index << "] Paused.";\r
- });\r
- }\r
-\r
- void play(int index)\r
- { \r
- channel_.execution().invoke([&]\r
- {\r
- layers_[index].play();\r
- CASPAR_LOG(info) << print() << " layer [ " << index << "] Playing.";\r
- });\r
- }\r
-\r
- void stop(int index)\r
- { \r
- channel_.execution().invoke([&]\r
- {\r
- layers_[index].stop();\r
- CASPAR_LOG(info) << print() << " layer [ " << index << "] Stopped.";\r
- });\r
- }\r
-\r
- void clear(int index)\r
- {\r
- channel_.execution().invoke([&]\r
- {\r
- layers_.erase(index);\r
- CASPAR_LOG(info) << print() << " layer [ " << index << "] Cleared.";\r
- });\r
- }\r
- \r
- void clear()\r
- {\r
- channel_.execution().invoke([&]\r
- {\r
- layers_.clear();\r
- CASPAR_LOG(info) << print() << " Cleared.";\r
- });\r
- } \r
- \r
- void swap_layer(int index, size_t other_index)\r
- {\r
- channel_.execution().invoke([&]\r
- {\r
- layers_[index].swap(layers_[other_index]);\r
- });\r
- }\r
-\r
- void swap_layer(int index, size_t other_index, stage& other)\r
- {\r
- if(other.impl_.get() == this)\r
- swap_layer(index, other_index);\r
- else\r
- {\r
- if(channel_.get_format_desc() != other.impl_->channel_.get_format_desc())\r
- BOOST_THROW_EXCEPTION(not_supported() << msg_info("Cannot swap between channels with different formats."));\r
-\r
- auto func = [&]{layers_[index].swap(other.impl_->layers_[other_index]);};\r
- \r
- channel_.execution().invoke([&]{other.impl_->channel_.execution().invoke(func);});\r
- }\r
- }\r
-\r
- void swap(stage& other)\r
- {\r
- if(other.impl_.get() == this)\r
- return;\r
-\r
- if(channel_.get_format_desc() != other.impl_->channel_.get_format_desc())\r
- BOOST_THROW_EXCEPTION(not_supported() << msg_info("Cannot swap between channels with different formats."));\r
-\r
- auto func = [&]\r
- {\r
- auto sel_first = [](const std::pair<int, layer>& pair){return pair.first;};\r
-\r
- std::set<int> indices;\r
- auto inserter = std::inserter(indices, indices.begin());\r
-\r
- std::transform(layers_.begin(), layers_.end(), inserter, sel_first);\r
- std::transform(other.impl_->layers_.begin(), other.impl_->layers_.end(), inserter, sel_first);\r
-\r
- BOOST_FOREACH(auto index, indices)\r
- layers_[index].swap(other.impl_->layers_[index]);\r
- };\r
- \r
- channel_.execution().invoke([&]{other.impl_->channel_.execution().invoke(func);});\r
- }\r
- \r
- boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
- {\r
- return channel_.execution().begin_invoke([=]{return layers_[index].foreground();});\r
- }\r
- \r
- boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
- {\r
- return channel_.execution().begin_invoke([=]{return layers_[index].background();});\r
- }\r
-\r
- std::wstring print() const\r
- {\r
- return L"stage [" + boost::lexical_cast<std::wstring>(channel_.index()) + L"]";\r
- }\r
-\r
-};\r
-\r
-stage::stage(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
-void stage::swap(stage& other){impl_->swap(other);}\r
-void stage::load(int index, const safe_ptr<frame_producer>& producer, bool preview){impl_->load(index, producer, preview);}\r
-void stage::pause(int index){impl_->pause(index);}\r
-void stage::play(int index){impl_->play(index);}\r
-void stage::stop(int index){impl_->stop(index);}\r
-void stage::clear(int index){impl_->clear(index);}\r
-void stage::clear(){impl_->clear();}\r
-void stage::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
-void stage::swap_layer(int index, size_t other_index, stage& other){impl_->swap_layer(index, other_index, other);}\r
-boost::unique_future<safe_ptr<frame_producer>> stage::foreground(size_t index) {return impl_->foreground(index);}\r
-boost::unique_future<safe_ptr<frame_producer>> stage::background(size_t index) {return impl_->background(index);}\r
-std::map<int, safe_ptr<basic_frame>> stage::execute(){return impl_->execute();}\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 "stage.h"
+
+#include "layer.h"
+
+#include "../frame/draw_frame.h"
+#include "../frame/frame_factory.h"
+
+#include <common/executor.h>
+#include <common/future.h>
+#include <common/diagnostics/graph.h>
+
+#include <core/frame/frame_transform.h>
+
+#include <boost/foreach.hpp>
+#include <boost/timer.hpp>
+#include <boost/property_tree/ptree.hpp>
+#include <boost/range/algorithm_ext.hpp>
+
+#include <tbb/parallel_for_each.h>
+
+#include <functional>
+#include <map>
+#include <vector>
+
+namespace caspar { namespace core {
+
+struct stage::impl : public std::enable_shared_from_this<impl>
+{
+ spl::shared_ptr<diagnostics::graph> graph_;
+ monitor::basic_subject event_subject_;
+ reactive::basic_subject<std::map<int, class draw_frame>> frames_subject_;
+ std::map<int, layer> layers_;
+ std::map<int, tweened_transform> tweens_;
+ executor executor_;
+public:
+ impl(spl::shared_ptr<diagnostics::graph> graph)
+ : graph_(std::move(graph))
+ , event_subject_("stage")
+ , executor_(L"stage")
+ {
+ graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));
+ }
+
+ std::map<int, draw_frame> operator()(const struct video_format_desc& format_desc)
+ {
+ boost::timer frame_timer;
+
+ auto frames = executor_.invoke([=]() -> std::map<int, draw_frame>
+ {
+
+ std::map<int, class draw_frame> frames;
+
+ try
+ {
+ std::vector<int> indices;
+
+ BOOST_FOREACH(auto& layer, layers_)
+ {
+ frames[layer.first] = draw_frame::empty();
+ indices.push_back(layer.first);
+ }
+
+ // WORKAROUND: Compiler doesn't seem to like lambda.
+ tbb::parallel_for_each(indices.begin(), indices.end(), std::bind(&stage::impl::draw, this, std::placeholders::_1, std::ref(format_desc), std::ref(frames)));
+ }
+ catch(...)
+ {
+ layers_.clear();
+ CASPAR_LOG_CURRENT_EXCEPTION();
+ }
+
+
+ return frames;
+ });
+
+ frames_subject_ << frames;
+
+ graph_->set_value("produce-time", frame_timer.elapsed()*format_desc.fps*0.5);
+ event_subject_ << monitor::event("profiler/time") % frame_timer.elapsed() % (1.0/format_desc.fps);
+
+ return frames;
+ }
+
+ void draw(int index, const video_format_desc& format_desc, std::map<int, draw_frame>& frames)
+ {
+ auto& layer = layers_[index];
+ auto& tween = tweens_[index];
+
+ auto frame = layer.receive(format_desc);
+ auto frame1 = frame;
+ frame1.transform() *= tween.fetch_and_tick(1);
+
+ if(format_desc.field_mode != core::field_mode::progressive)
+ {
+ auto frame2 = frame;
+ frame2.transform() *= tween.fetch_and_tick(1);
+ frame1 = core::draw_frame::interlace(frame1, frame2, format_desc.field_mode);
+ }
+
+ frames[index] = frame1;
+ }
+
+ layer& get_layer(int index)
+ {
+ auto it = layers_.find(index);
+ if(it == std::end(layers_))
+ {
+ it = layers_.insert(std::make_pair(index, layer(index))).first;
+ it->second.subscribe(event_subject_);
+ }
+ return it->second;
+ }
+
+ boost::unique_future<void> apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)
+ {
+ return executor_.begin_invoke([=]
+ {
+ BOOST_FOREACH(auto& transform, transforms)
+ {
+ auto src = tweens_[std::get<0>(transform)].fetch();
+ auto dst = std::get<1>(transform)(src);
+ tweens_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));
+ }
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)
+ {
+ return executor_.begin_invoke([=]
+ {
+ auto src = tweens_[index].fetch();
+ auto dst = transform(src);
+ tweens_[index] = tweened_transform(src, dst, mix_duration, tween);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> clear_transforms(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ tweens_.erase(index);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> clear_transforms()
+ {
+ return executor_.begin_invoke([=]
+ {
+ tweens_.clear();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> load(int index, const spl::shared_ptr<frame_producer>& producer, bool preview, const boost::optional<int32_t>& auto_play_delta)
+ {
+ return executor_.begin_invoke([=]
+ {
+ get_layer(index).load(producer, preview, auto_play_delta);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> pause(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ layers_[index].pause();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> play(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ layers_[index].play();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> stop(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ layers_[index].stop();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> clear(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ layers_.erase(index);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> clear()
+ {
+ return executor_.begin_invoke([=]
+ {
+ layers_.clear();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> swap_layers(stage& other)
+ {
+ auto other_impl = other.impl_;
+
+ if(other_impl.get() == this)
+ return async(launch::deferred, []{});
+
+ auto func = [=]
+ {
+ auto layers = layers_ | boost::adaptors::map_values;
+ auto other_layers = other_impl->layers_ | boost::adaptors::map_values;
+
+ BOOST_FOREACH(auto& layer, layers)
+ layer.unsubscribe(event_subject_);
+
+ BOOST_FOREACH(auto& layer, other_layers)
+ layer.unsubscribe(event_subject_);
+
+ std::swap(layers_, other_impl->layers_);
+
+ BOOST_FOREACH(auto& layer, layers)
+ layer.subscribe(event_subject_);
+
+ BOOST_FOREACH(auto& layer, other_layers)
+ layer.subscribe(event_subject_);
+ };
+
+ return executor_.begin_invoke([=]
+ {
+ other_impl->executor_.invoke(func, task_priority::high_priority);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> swap_layer(int index, int other_index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ std::swap(layers_[index], layers_[other_index]);
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<void> swap_layer(int index, int other_index, stage& other)
+ {
+ auto other_impl = other.impl_;
+
+ if(other_impl.get() == this)
+ return swap_layer(index, other_index);
+ else
+ {
+ auto func = [=]
+ {
+ auto& my_layer = get_layer(index);
+ auto& other_layer = other_impl->get_layer(other_index);
+
+ my_layer.unsubscribe(event_subject_);
+ other_layer.unsubscribe(other_impl->event_subject_);
+
+ std::swap(my_layer, other_layer);
+
+ my_layer.subscribe(event_subject_);
+ other_layer.subscribe(other_impl->event_subject_);
+ };
+
+ return executor_.begin_invoke([=]
+ {
+ other_impl->executor_.invoke(func, task_priority::high_priority);
+ }, task_priority::high_priority);
+ }
+ }
+
+ boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ return layers_[index].foreground();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ return layers_[index].background();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<boost::property_tree::wptree> info()
+ {
+ return executor_.begin_invoke([this]() -> boost::property_tree::wptree
+ {
+ boost::property_tree::wptree info;
+ BOOST_FOREACH(auto& layer, layers_)
+ info.add_child(L"layers.layer", layer.second.info())
+ .add(L"index", layer.first);
+ return info;
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<boost::property_tree::wptree> info(int index)
+ {
+ return executor_.begin_invoke([=]
+ {
+ return layers_[index].info();
+ }, task_priority::high_priority);
+ }
+
+ boost::unique_future<std::wstring> call(int index, const std::wstring& params)
+ {
+ return flatten(executor_.begin_invoke([=]
+ {
+ return make_shared(layers_[index].foreground()->call(params));
+ }, task_priority::high_priority));
+ }
+};
+
+stage::stage(spl::shared_ptr<diagnostics::graph> graph) : impl_(new impl(std::move(graph))){}
+boost::unique_future<std::wstring> stage::call(int index, const std::wstring& params){return impl_->call(index, params);}
+boost::unique_future<void> stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){return impl_->apply_transforms(transforms);}
+boost::unique_future<void> stage::apply_transform(int index, const std::function<core::frame_transform(core::frame_transform)>& transform, unsigned int mix_duration, const tweener& tween){return impl_->apply_transform(index, transform, mix_duration, tween);}
+boost::unique_future<void> stage::clear_transforms(int index){return impl_->clear_transforms(index);}
+boost::unique_future<void> stage::clear_transforms(){return impl_->clear_transforms();}
+boost::unique_future<void> stage::load(int index, const spl::shared_ptr<frame_producer>& producer, bool preview, const boost::optional<int32_t>& auto_play_delta){return impl_->load(index, producer, preview, auto_play_delta);}
+boost::unique_future<void> stage::pause(int index){return impl_->pause(index);}
+boost::unique_future<void> stage::play(int index){return impl_->play(index);}
+boost::unique_future<void> stage::stop(int index){return impl_->stop(index);}
+boost::unique_future<void> stage::clear(int index){return impl_->clear(index);}
+boost::unique_future<void> stage::clear(){return impl_->clear();}
+boost::unique_future<void> stage::swap_layers(stage& other){return impl_->swap_layers(other);}
+boost::unique_future<void> stage::swap_layer(int index, int other_index){return impl_->swap_layer(index, other_index);}
+boost::unique_future<void> stage::swap_layer(int index, int other_index, stage& other){return impl_->swap_layer(index, other_index, other);}
+boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}
+boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}
+boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}
+boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}
+std::map<int, class draw_frame> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}
+void stage::subscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.subscribe(o);}
+void stage::unsubscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.unsubscribe(o);}
+void stage::subscribe(const frame_observable::observer_ptr& o) {impl_->frames_subject_.subscribe(o);}
+void stage::unsubscribe(const frame_observable::observer_ptr& o) {impl_->frames_subject_.unsubscribe(o);}
}}
\ No newline at end of file
projects / casparcg / blobdiff