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/draw_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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32 #include <common/diagnostics/graph.h>
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34 #include <core/frame/frame_transform.h>
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36 #include <boost/foreach.hpp>
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37 #include <boost/timer.hpp>
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38 #include <boost/property_tree/ptree.hpp>
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39 #include <boost/range/algorithm_ext.hpp>
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41 #include <tbb/parallel_for_each.h>
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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 std::map<int, layer> layers_;
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84 std::map<int, tweened_transform<core::frame_transform>> transforms_;
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89 : executor_(L"stage")
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93 std::map<int, safe_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)
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95 return executor_.invoke([=]() -> std::map<int, safe_ptr<draw_frame>>
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97 std::map<int, safe_ptr<class draw_frame>> result;
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101 BOOST_FOREACH(auto& layer, layers_)
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102 result[layer.first] = draw_frame::empty();
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104 auto format_desc2 = format_desc;
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106 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)
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108 auto transform = transforms_[layer.first].fetch_and_tick(1);
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110 int flags = frame_producer::flags::none;
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111 if(format_desc2.field_mode != field_mode::progressive)
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113 flags |= std::abs(transform.fill_scale[1] - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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114 flags |= std::abs(transform.fill_translation[1]) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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117 if(transform.is_key)
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118 flags |= frame_producer::flags::alpha_only;
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120 auto frame = layer.second.receive(flags);
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122 auto frame1 = make_safe<core::draw_frame>(frame);
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123 frame1->get_frame_transform() = transform;
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125 if(format_desc2.field_mode != core::field_mode::progressive)
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127 auto frame2 = make_safe<core::draw_frame>(frame);
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128 frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);
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129 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc2.field_mode);
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132 result[layer.first] = frame1;
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138 CASPAR_LOG_CURRENT_EXCEPTION();
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145 void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, std::wstring>>& transforms)
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147 executor_.begin_invoke([=]
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149 BOOST_FOREACH(auto& transform, transforms)
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151 auto src = transforms_[std::get<0>(transform)].fetch();
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152 auto dst = std::get<1>(transform)(src);
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153 transforms_[std::get<0>(transform)] = tweened_transform<frame_transform>(src, dst, std::get<2>(transform), std::get<3>(transform));
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158 void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const std::wstring& tween)
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160 executor_.begin_invoke([=]
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162 auto src = transforms_[index].fetch();
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163 auto dst = transform(src);
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164 transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);
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168 void clear_transforms(int index)
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170 executor_.begin_invoke([=]
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172 transforms_.erase(index);
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176 void clear_transforms()
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178 executor_.begin_invoke([=]
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180 transforms_.clear();
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184 void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)
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186 executor_.begin_invoke([=]
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188 layers_[index].load(producer, preview, auto_play_delta);
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192 void pause(int index)
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194 executor_.begin_invoke([=]
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196 layers_[index].pause();
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200 void play(int index)
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202 executor_.begin_invoke([=]
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204 layers_[index].play();
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208 void stop(int index)
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210 executor_.begin_invoke([=]
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212 layers_[index].stop();
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216 void clear(int index)
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218 executor_.begin_invoke([=]
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220 layers_.erase(index);
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226 executor_.begin_invoke([=]
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232 boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)
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234 return std::move(*executor_.invoke([=]
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236 return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));
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237 }, high_priority));
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240 void swap_layers(const safe_ptr<stage>& other)
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242 if(other->impl_.get() == this)
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247 std::swap(layers_, other->impl_->layers_);
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249 executor_.begin_invoke([=]
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251 other->impl_->executor_.invoke(func, high_priority);
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255 void swap_layer(int index, int other_index)
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257 executor_.begin_invoke([=]
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259 std::swap(layers_[index], layers_[other_index]);
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263 void swap_layer(int index, int other_index, const safe_ptr<stage>& other)
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265 if(other->impl_.get() == this)
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266 swap_layer(index, other_index);
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271 std::swap(layers_[index], other->impl_->layers_[other_index]);
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273 executor_.begin_invoke([=]
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275 other->impl_->executor_.invoke(func, high_priority);
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280 boost::unique_future<safe_ptr<frame_producer>> foreground(int index)
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282 return executor_.begin_invoke([=]
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284 return layers_[index].foreground();
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288 boost::unique_future<safe_ptr<frame_producer>> background(int index)
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290 return executor_.begin_invoke([=]
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292 return layers_[index].background();
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296 boost::unique_future<boost::property_tree::wptree> info()
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298 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree
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300 boost::property_tree::wptree info;
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301 BOOST_FOREACH(auto& layer, layers_)
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302 info.add_child(L"layers.layer", layer.second.info())
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303 .add(L"index", layer.first);
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305 }, high_priority));
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308 boost::unique_future<boost::property_tree::wptree> info(int index)
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310 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree
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312 return layers_[index].info();
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313 }, high_priority));
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317 stage::stage() : impl_(new impl()){}
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318 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}
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319 void stage::apply_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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320 void stage::clear_transforms(int index){impl_->clear_transforms(index);}
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321 void stage::clear_transforms(){impl_->clear_transforms();}
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322 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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323 void stage::pause(int index){impl_->pause(index);}
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324 void stage::play(int index){impl_->play(index);}
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325 void stage::stop(int index){impl_->stop(index);}
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326 void stage::clear(int index){impl_->clear(index);}
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327 void stage::clear(){impl_->clear();}
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328 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}
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329 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}
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330 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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331 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}
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332 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}
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333 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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334 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}
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335 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}
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336 std::map<int, safe_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}
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