2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG (www.casparcg.com).
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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19 * Author: Robert Nagy, ronag89@gmail.com
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22 #include "../StdAfx.h"
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28 #include "frame/basic_frame.h"
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29 #include "frame/frame_factory.h"
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31 #include <common/concurrency/executor.h>
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33 #include <core/producer/frame/frame_transform.h>
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35 #include <boost/foreach.hpp>
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36 #include <boost/timer.hpp>
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38 #include <tbb/parallel_for_each.h>
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40 #include <boost/property_tree/ptree.hpp>
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41 #include <boost/range/algorithm_ext.hpp>
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46 namespace caspar { namespace core {
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48 template<typename T>
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49 class tweened_transform
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60 , tweener_(get_tweener(L"linear")){}
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61 tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")
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64 , duration_(duration)
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66 , tweener_(get_tweener(tween)){}
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70 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);
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73 T fetch_and_tick(int num)
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75 time_ = std::min(time_+num, duration_);
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80 struct stage::impl : public std::enable_shared_from_this<impl>
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81 , boost::noncopyable
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83 safe_ptr<diagnostics::graph> graph_;
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85 std::vector<std::weak_ptr<stage::target_t>> targets_;
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86 video_format_desc format_desc_;
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88 boost::timer produce_timer_;
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89 boost::timer tick_timer_;
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91 std::map<int, layer> layers_;
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92 std::map<int, tweened_transform<core::frame_transform>> transforms_;
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96 impl(const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc)
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98 , format_desc_(format_desc)
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99 , executor_(L"stage")
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101 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
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102 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));
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107 std::weak_ptr<impl> self = shared_from_this();
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108 executor_.begin_invoke([=]{tick(self);});
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111 void link_target(const std::weak_ptr<stage::target_t>& target)
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113 targets_.push_back(target);
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116 void tick(const std::weak_ptr<impl>& self)
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120 produce_timer_.restart();
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122 std::map<int, safe_ptr<basic_frame>> frames;
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124 BOOST_FOREACH(auto& layer, layers_)
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125 frames[layer.first] = basic_frame::empty();
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127 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)
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129 auto transform = transforms_[layer.first].fetch_and_tick(1);
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131 int flags = frame_producer::NO_FLAG;
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132 if(format_desc_.field_mode != field_mode::progressive)
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134 flags |= std::abs(transform.fill_scale[1] - 1.0) > 0.0001 ? frame_producer::DEINTERLACE_FLAG : frame_producer::NO_FLAG;
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135 flags |= std::abs(transform.fill_translation[1]) > 0.0001 ? frame_producer::DEINTERLACE_FLAG : frame_producer::NO_FLAG;
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138 if(transform.is_key)
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139 flags |= frame_producer::ALPHA_ONLY_FLAG;
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141 auto frame = layer.second.receive(flags);
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143 auto frame1 = make_safe<core::basic_frame>(frame);
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144 frame1->get_frame_transform() = transform;
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146 if(format_desc_.field_mode != core::field_mode::progressive)
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148 auto frame2 = make_safe<core::basic_frame>(frame);
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149 frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);
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150 frame1 = core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode);
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153 frames[layer.first] = frame1;
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156 graph_->set_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);
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158 std::shared_ptr<void> ticket(nullptr, [self](void*)
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160 auto self2 = self.lock();
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162 self2->executor_.begin_invoke([=]{tick(self);});
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165 boost::range::remove_erase_if(targets_, [](const std::weak_ptr<target_t>& target)
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167 return target.lock() == nullptr;
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170 BOOST_FOREACH(auto target, targets_)
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171 target.lock()->send(std::make_pair(frames, ticket));
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173 graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);
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174 tick_timer_.restart();
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179 CASPAR_LOG_CURRENT_EXCEPTION();
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183 void set_transform(int index, const frame_transform& transform, unsigned int mix_duration, const std::wstring& tween)
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185 executor_.begin_invoke([=]
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187 auto src = transforms_[index].fetch();
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188 auto dst = transform;
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189 transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);
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193 void apply_transform(int index, const std::function<frame_transform(frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween)
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195 executor_.begin_invoke([=]
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197 auto src = transforms_[index].fetch();
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198 auto dst = transform(src);
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199 transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);
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203 void clear_transforms(int index)
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205 executor_.begin_invoke([=]
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207 transforms_.erase(index);
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211 void clear_transforms()
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213 executor_.begin_invoke([=]
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215 transforms_.clear();
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219 void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)
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221 executor_.begin_invoke([=]
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223 layers_[index].load(producer, preview, auto_play_delta);
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227 void pause(int index)
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229 executor_.begin_invoke([=]
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231 layers_[index].pause();
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235 void play(int index)
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237 executor_.begin_invoke([=]
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239 layers_[index].play();
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243 void stop(int index)
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245 executor_.begin_invoke([=]
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247 layers_[index].stop();
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251 void clear(int index)
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253 executor_.begin_invoke([=]
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255 layers_.erase(index);
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261 executor_.begin_invoke([=]
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267 boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)
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269 return std::move(*executor_.invoke([=]
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271 return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));
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272 }, high_priority));
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275 void swap_layers(const safe_ptr<stage>& other)
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277 if(other->impl_.get() == this)
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282 std::swap(layers_, other->impl_->layers_);
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284 executor_.begin_invoke([=]
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286 other->impl_->executor_.invoke(func, high_priority);
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290 void swap_layer(int index, int other_index)
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292 executor_.begin_invoke([=]
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294 std::swap(layers_[index], layers_[other_index]);
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298 void swap_layer(int index, int other_index, const safe_ptr<stage>& other)
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300 if(other->impl_.get() == this)
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301 swap_layer(index, other_index);
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306 std::swap(layers_[index], other->impl_->layers_[other_index]);
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308 executor_.begin_invoke([=]
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310 other->impl_->executor_.invoke(func, high_priority);
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315 boost::unique_future<safe_ptr<frame_producer>> foreground(int index)
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317 return executor_.begin_invoke([=]
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319 return layers_[index].foreground();
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323 boost::unique_future<safe_ptr<frame_producer>> background(int index)
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325 return executor_.begin_invoke([=]
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327 return layers_[index].background();
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331 void set_video_format_desc(const video_format_desc& format_desc)
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333 executor_.begin_invoke([=]
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335 format_desc_ = format_desc;
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339 boost::unique_future<boost::property_tree::wptree> info()
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341 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree
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343 boost::property_tree::wptree info;
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344 BOOST_FOREACH(auto& layer, layers_)
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345 info.add_child(L"layers.layer", layer.second.info())
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346 .add(L"index", layer.first);
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348 }, high_priority));
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351 boost::unique_future<boost::property_tree::wptree> info(int index)
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353 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree
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355 return layers_[index].info();
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356 }, high_priority));
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360 stage::stage(const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc) : impl_(new impl(graph, format_desc)){}
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361 void stage::link_target(const std::weak_ptr<target_t>& target){impl_->link_target(target);}
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362 void stage::set_frame_transform(int index, const core::frame_transform& transform, unsigned int mix_duration, const std::wstring& tween){impl_->set_transform(index, transform, mix_duration, tween);}
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363 void stage::apply_frame_transform(int index, const std::function<core::frame_transform(core::frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform(index, transform, mix_duration, tween);}
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364 void stage::clear_transforms(int index){impl_->clear_transforms(index);}
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365 void stage::clear_transforms(){impl_->clear_transforms();}
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366 void stage::spawn_token(){impl_->spawn_token();}
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367 void stage::load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta){impl_->load(index, producer, preview, auto_play_delta);}
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368 void stage::pause(int index){impl_->pause(index);}
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369 void stage::play(int index){impl_->play(index);}
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370 void stage::stop(int index){impl_->stop(index);}
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371 void stage::clear(int index){impl_->clear(index);}
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372 void stage::clear(){impl_->clear();}
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373 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}
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374 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}
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375 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}
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376 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}
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377 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}
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378 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}
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379 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}
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380 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}
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381 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}
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