git.sesse.net Git - casparcg/blob - core/producer/stage.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../StdAfx.h"\r
  23 \r
  24 #include "stage.h"\r
  25 \r
  26 #include "layer.h"\r
  27 \r
  28 #include "frame/basic_frame.h"\r
  29 #include "frame/frame_factory.h"\r
  30 \r
  31 #include <common/concurrency/executor.h>\r
  32 #include <common/diagnostics/graph.h>\r
  33 \r
  34 #include <core/producer/frame/frame_transform.h>\r
  35 \r
  36 #include <boost/foreach.hpp>\r
  37 #include <boost/timer.hpp>\r
  38 \r
  39 #include <tbb/parallel_for_each.h>\r
  40 \r
  41 #include <boost/property_tree/ptree.hpp>\r
  42 #include <boost/range/algorithm_ext.hpp>\r
  43 \r
  44 #include <map>\r
  45 #include <vector>\r
  46 \r
  47 namespace caspar { namespace core {\r
  48         \r
  49 template<typename T>\r
  50 class tweened_transform\r
  51 {\r
  52         T source_;\r
  53         T dest_;\r
  54         int duration_;\r
  55         int time_;\r
  56         tweener_t tweener_;\r
  57 public: \r
  58         tweened_transform()\r
  59                 : duration_(0)\r
  60                 , time_(0)\r
  61                 , tweener_(get_tweener(L"linear")){}\r
  62         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  63                 : source_(source)\r
  64                 , dest_(dest)\r
  65                 , duration_(duration)\r
  66                 , time_(0)\r
  67                 , tweener_(get_tweener(tween)){}\r
  68         \r
  69         T fetch()\r
  70         {\r
  71                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  72         }\r
  73 \r
  74         T fetch_and_tick(int num)\r
  75         {                                               \r
  76                 time_ = std::min(time_+num, duration_);\r
  77                 return fetch();\r
  78         }\r
  79 };\r
  80 \r
  81 struct stage::impl : public std::enable_shared_from_this<impl>\r
  82                                    , boost::noncopyable\r
  83 {               \r
  84         safe_ptr<stage::target_t>                                                               target_;\r
  85         video_format_desc                                                                               format_desc_;\r
  86         \r
  87         safe_ptr<diagnostics::graph>                                                    graph_;\r
  88 \r
  89         boost::timer                                                                                    produce_timer_;\r
  90         boost::timer                                                                                    tick_timer_;\r
  91 \r
  92         std::map<int, layer>                                                                    layers_;        \r
  93         std::map<int, tweened_transform<core::frame_transform>> transforms_;    \r
  94 \r
  95         executor                                                                                                executor_;\r
  96 public:\r
  97         impl(const safe_ptr<stage::target_t>& target, const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc)  \r
  98                 : target_(target)\r
  99                 , graph_(graph)\r
 100                 , format_desc_(format_desc)\r
 101                 , executor_(L"stage")\r
 102         {\r
 103                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 104                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 105         }\r
 106 \r
 107         void spawn_token()\r
 108         {\r
 109                 std::weak_ptr<impl> self = shared_from_this();\r
 110                 executor_.begin_invoke([=]{tick(self);});\r
 111         }\r
 112         \r
 113         void tick(const std::weak_ptr<impl>& self)\r
 114         {               \r
 115                 try\r
 116                 {\r
 117                         produce_timer_.restart();\r
 118 \r
 119                         std::map<int, safe_ptr<basic_frame>> frames;\r
 120                 \r
 121                         BOOST_FOREACH(auto& layer, layers_)                     \r
 122                                 frames[layer.first] = basic_frame::empty();     \r
 123 \r
 124                         tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
 125                         {\r
 126                                 auto transform = transforms_[layer.first].fetch_and_tick(1);\r
 127 \r
 128                                 int flags = frame_producer::flags::none;\r
 129                                 if(format_desc_.field_mode != field_mode::progressive)\r
 130                                 {\r
 131                                         flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 132                                         flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 133                                 }\r
 134 \r
 135                                 if(transform.is_key)\r
 136                                         flags |= frame_producer::flags::alpha_only;\r
 137 \r
 138                                 auto frame = layer.second.receive(flags);       \r
 139                                 \r
 140                                 auto frame1 = make_safe<core::basic_frame>(frame);\r
 141                                 frame1->get_frame_transform() = transform;\r
 142 \r
 143                                 if(format_desc_.field_mode != core::field_mode::progressive)\r
 144                                 {                               \r
 145                                         auto frame2 = make_safe<core::basic_frame>(frame);\r
 146                                         frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);\r
 147                                         frame1 = core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode);\r
 148                                 }\r
 149 \r
 150                                 frames[layer.first] = frame1;\r
 151                         });\r
 152                         \r
 153                         graph_->set_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);\r
 154                         \r
 155                         std::shared_ptr<void> ticket(nullptr, [self](void*)\r
 156                         {\r
 157                                 auto self2 = self.lock();\r
 158                                 if(self2)                               \r
 159                                         self2->executor_.begin_invoke([=]{tick(self);});                                \r
 160                         });\r
 161                                                 \r
 162                         target_->send(std::make_pair(frames, ticket));\r
 163 \r
 164                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 165                         tick_timer_.restart();\r
 166                 }\r
 167                 catch(...)\r
 168                 {\r
 169                         layers_.clear();\r
 170                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 171                 }               \r
 172         }\r
 173                                                 \r
 174         void apply_transform(int index, const std::function<frame_transform(frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 175         {\r
 176                 executor_.begin_invoke([=]\r
 177                 {\r
 178                         auto src = transforms_[index].fetch();\r
 179                         auto dst = transform(src);\r
 180                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 181                 }, high_priority);\r
 182         }\r
 183 \r
 184         void clear_transforms(int index)\r
 185         {\r
 186                 executor_.begin_invoke([=]\r
 187                 {\r
 188                         transforms_.erase(index);\r
 189                 }, high_priority);\r
 190         }\r
 191 \r
 192         void clear_transforms()\r
 193         {\r
 194                 executor_.begin_invoke([=]\r
 195                 {\r
 196                         transforms_.clear();\r
 197                 }, high_priority);\r
 198         }\r
 199                 \r
 200         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 201         {\r
 202                 executor_.begin_invoke([=]\r
 203                 {\r
 204                         layers_[index].load(producer, preview, auto_play_delta);\r
 205                 }, high_priority);\r
 206         }\r
 207 \r
 208         void pause(int index)\r
 209         {               \r
 210                 executor_.begin_invoke([=]\r
 211                 {\r
 212                         layers_[index].pause();\r
 213                 }, high_priority);\r
 214         }\r
 215 \r
 216         void play(int index)\r
 217         {               \r
 218                 executor_.begin_invoke([=]\r
 219                 {\r
 220                         layers_[index].play();\r
 221                 }, high_priority);\r
 222         }\r
 223 \r
 224         void stop(int index)\r
 225         {               \r
 226                 executor_.begin_invoke([=]\r
 227                 {\r
 228                         layers_[index].stop();\r
 229                 }, high_priority);\r
 230         }\r
 231 \r
 232         void clear(int index)\r
 233         {\r
 234                 executor_.begin_invoke([=]\r
 235                 {\r
 236                         layers_.erase(index);\r
 237                 }, high_priority);\r
 238         }\r
 239                 \r
 240         void clear()\r
 241         {\r
 242                 executor_.begin_invoke([=]\r
 243                 {\r
 244                         layers_.clear();\r
 245                 }, high_priority);\r
 246         }       \r
 247         \r
 248         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 249         {\r
 250                 return std::move(*executor_.invoke([=]\r
 251                 {\r
 252                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 253                 }, high_priority));\r
 254         }\r
 255         \r
 256         void swap_layers(const safe_ptr<stage>& other)\r
 257         {\r
 258                 if(other->impl_.get() == this)\r
 259                         return;\r
 260                 \r
 261                 auto func = [=]\r
 262                 {\r
 263                         std::swap(layers_, other->impl_->layers_);\r
 264                 };              \r
 265                 executor_.begin_invoke([=]\r
 266                 {\r
 267                         other->impl_->executor_.invoke(func, high_priority);\r
 268                 }, high_priority);\r
 269         }\r
 270 \r
 271         void swap_layer(int index, int other_index)\r
 272         {\r
 273                 executor_.begin_invoke([=]\r
 274                 {\r
 275                         std::swap(layers_[index], layers_[other_index]);\r
 276                 }, high_priority);\r
 277         }\r
 278 \r
 279         void swap_layer(int index, int other_index, const safe_ptr<stage>& other)\r
 280         {\r
 281                 if(other->impl_.get() == this)\r
 282                         swap_layer(index, other_index);\r
 283                 else\r
 284                 {\r
 285                         auto func = [=]\r
 286                         {\r
 287                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 288                         };              \r
 289                         executor_.begin_invoke([=]\r
 290                         {\r
 291                                 other->impl_->executor_.invoke(func, high_priority);\r
 292                         }, high_priority);\r
 293                 }\r
 294         }\r
 295                 \r
 296         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 297         {\r
 298                 return executor_.begin_invoke([=]\r
 299                 {\r
 300                         return layers_[index].foreground();\r
 301                 }, high_priority);\r
 302         }\r
 303         \r
 304         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 305         {\r
 306                 return executor_.begin_invoke([=]\r
 307                 {\r
 308                         return layers_[index].background();\r
 309                 }, high_priority);\r
 310         }\r
 311         \r
 312         void set_video_format_desc(const video_format_desc& format_desc)\r
 313         {\r
 314                 executor_.begin_invoke([=]\r
 315                 {\r
 316                         format_desc_ = format_desc;\r
 317                 }, high_priority);\r
 318         }\r
 319 \r
 320         boost::unique_future<boost::property_tree::wptree> info()\r
 321         {\r
 322                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 323                 {\r
 324                         boost::property_tree::wptree info;\r
 325                         BOOST_FOREACH(auto& layer, layers_)                     \r
 326                                 info.add_child(L"layers.layer", layer.second.info())\r
 327                                         .add(L"index", layer.first);    \r
 328                         return info;\r
 329                 }, high_priority));\r
 330         }\r
 331 \r
 332         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 333         {\r
 334                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 335                 {\r
 336                         return layers_[index].info();\r
 337                 }, high_priority));\r
 338         }\r
 339 };\r
 340 \r
 341 stage::stage(const safe_ptr<stage::target_t>& target, const safe_ptr<diagnostics::graph>& graph, const struct video_format_desc& format_desc) : impl_(new impl(target, graph, format_desc)){}\r
 342 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);}\r
 343 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 344 void stage::clear_transforms(){impl_->clear_transforms();}\r
 345 void stage::spawn_token(){impl_->spawn_token();}\r
 346 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);}\r
 347 void stage::pause(int index){impl_->pause(index);}\r
 348 void stage::play(int index){impl_->play(index);}\r
 349 void stage::stop(int index){impl_->stop(index);}\r
 350 void stage::clear(int index){impl_->clear(index);}\r
 351 void stage::clear(){impl_->clear();}\r
 352 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 353 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 354 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 355 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 356 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 357 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 358 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 359 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 360 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 361 }}