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 #include <boost/property_tree/ptree.hpp>\r
  39 #include <boost/range/algorithm_ext.hpp>\r
  40 \r
  41 #include <tbb/parallel_for_each.h>\r
  42 \r
  43 #include <map>\r
  44 #include <vector>\r
  45 \r
  46 namespace caspar { namespace core {\r
  47         \r
  48 template<typename T>\r
  49 class tweened_transform\r
  50 {\r
  51         T source_;\r
  52         T dest_;\r
  53         int duration_;\r
  54         int time_;\r
  55         tweener_t tweener_;\r
  56 public: \r
  57         tweened_transform()\r
  58                 : duration_(0)\r
  59                 , time_(0)\r
  60                 , tweener_(get_tweener(L"linear")){}\r
  61         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  62                 : source_(source)\r
  63                 , dest_(dest)\r
  64                 , duration_(duration)\r
  65                 , time_(0)\r
  66                 , tweener_(get_tweener(tween)){}\r
  67         \r
  68         T fetch()\r
  69         {\r
  70                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  71         }\r
  72 \r
  73         T fetch_and_tick(int num)\r
  74         {                                               \r
  75                 time_ = std::min(time_+num, duration_);\r
  76                 return fetch();\r
  77         }\r
  78 };\r
  79 \r
  80 struct stage::impl : public std::enable_shared_from_this<impl>\r
  81                                    , boost::noncopyable\r
  82 {               \r
  83         safe_ptr<stage::target_t>                                                               target_;\r
  84         video_format_desc                                                                               format_desc_;\r
  85         \r
  86         safe_ptr<diagnostics::graph>                                                    graph_;\r
  87 \r
  88         boost::timer                                                                                    produce_timer_;\r
  89         boost::timer                                                                                    tick_timer_;\r
  90 \r
  91         std::map<int, layer>                                                                    layers_;        \r
  92         std::map<int, tweened_transform<core::frame_transform>> transforms_;    \r
  93 \r
  94         executor                                                                                                executor_;\r
  95 public:\r
  96         impl(const safe_ptr<stage::target_t>& target, const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc)  \r
  97                 : target_(target)\r
  98                 , graph_(graph)\r
  99                 , format_desc_(format_desc)\r
 100                 , executor_(L"stage")\r
 101         {\r
 102                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 103                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 104         }\r
 105 \r
 106         void start(int tokens)\r
 107         {\r
 108                 std::weak_ptr<impl> self = shared_from_this();\r
 109                 for(int n = 0; n < tokens; ++n)\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_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, std::wstring>>& transforms)\r
 175         {\r
 176                 executor_.begin_invoke([=]\r
 177                 {\r
 178                         BOOST_FOREACH(auto& transform, transforms)\r
 179                         {\r
 180                                 auto src = transforms_[std::get<0>(transform)].fetch();\r
 181                                 auto dst = std::get<1>(transform)(src);\r
 182                                 transforms_[std::get<0>(transform)] = tweened_transform<frame_transform>(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 183                         }\r
 184                 }, high_priority);\r
 185         }\r
 186                                                 \r
 187         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const std::wstring& tween)\r
 188         {\r
 189                 executor_.begin_invoke([=]\r
 190                 {\r
 191                         auto src = transforms_[index].fetch();\r
 192                         auto dst = transform(src);\r
 193                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 194                 }, high_priority);\r
 195         }\r
 196 \r
 197         void clear_transforms(int index)\r
 198         {\r
 199                 executor_.begin_invoke([=]\r
 200                 {\r
 201                         transforms_.erase(index);\r
 202                 }, high_priority);\r
 203         }\r
 204 \r
 205         void clear_transforms()\r
 206         {\r
 207                 executor_.begin_invoke([=]\r
 208                 {\r
 209                         transforms_.clear();\r
 210                 }, high_priority);\r
 211         }\r
 212                 \r
 213         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 214         {\r
 215                 executor_.begin_invoke([=]\r
 216                 {\r
 217                         layers_[index].load(producer, preview, auto_play_delta);\r
 218                 }, high_priority);\r
 219         }\r
 220 \r
 221         void pause(int index)\r
 222         {               \r
 223                 executor_.begin_invoke([=]\r
 224                 {\r
 225                         layers_[index].pause();\r
 226                 }, high_priority);\r
 227         }\r
 228 \r
 229         void play(int index)\r
 230         {               \r
 231                 executor_.begin_invoke([=]\r
 232                 {\r
 233                         layers_[index].play();\r
 234                 }, high_priority);\r
 235         }\r
 236 \r
 237         void stop(int index)\r
 238         {               \r
 239                 executor_.begin_invoke([=]\r
 240                 {\r
 241                         layers_[index].stop();\r
 242                 }, high_priority);\r
 243         }\r
 244 \r
 245         void clear(int index)\r
 246         {\r
 247                 executor_.begin_invoke([=]\r
 248                 {\r
 249                         layers_.erase(index);\r
 250                 }, high_priority);\r
 251         }\r
 252                 \r
 253         void clear()\r
 254         {\r
 255                 executor_.begin_invoke([=]\r
 256                 {\r
 257                         layers_.clear();\r
 258                 }, high_priority);\r
 259         }       \r
 260         \r
 261         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 262         {\r
 263                 return std::move(*executor_.invoke([=]\r
 264                 {\r
 265                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 266                 }, high_priority));\r
 267         }\r
 268         \r
 269         void swap_layers(const safe_ptr<stage>& other)\r
 270         {\r
 271                 if(other->impl_.get() == this)\r
 272                         return;\r
 273                 \r
 274                 auto func = [=]\r
 275                 {\r
 276                         std::swap(layers_, other->impl_->layers_);\r
 277                 };              \r
 278                 executor_.begin_invoke([=]\r
 279                 {\r
 280                         other->impl_->executor_.invoke(func, high_priority);\r
 281                 }, high_priority);\r
 282         }\r
 283 \r
 284         void swap_layer(int index, int other_index)\r
 285         {\r
 286                 executor_.begin_invoke([=]\r
 287                 {\r
 288                         std::swap(layers_[index], layers_[other_index]);\r
 289                 }, high_priority);\r
 290         }\r
 291 \r
 292         void swap_layer(int index, int other_index, const safe_ptr<stage>& other)\r
 293         {\r
 294                 if(other->impl_.get() == this)\r
 295                         swap_layer(index, other_index);\r
 296                 else\r
 297                 {\r
 298                         auto func = [=]\r
 299                         {\r
 300                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 301                         };              \r
 302                         executor_.begin_invoke([=]\r
 303                         {\r
 304                                 other->impl_->executor_.invoke(func, high_priority);\r
 305                         }, high_priority);\r
 306                 }\r
 307         }\r
 308                 \r
 309         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 310         {\r
 311                 return executor_.begin_invoke([=]\r
 312                 {\r
 313                         return layers_[index].foreground();\r
 314                 }, high_priority);\r
 315         }\r
 316         \r
 317         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 318         {\r
 319                 return executor_.begin_invoke([=]\r
 320                 {\r
 321                         return layers_[index].background();\r
 322                 }, high_priority);\r
 323         }\r
 324         \r
 325         void set_video_format_desc(const video_format_desc& format_desc)\r
 326         {\r
 327                 executor_.begin_invoke([=]\r
 328                 {\r
 329                         format_desc_ = format_desc;\r
 330                 }, high_priority);\r
 331         }\r
 332 \r
 333         boost::unique_future<boost::property_tree::wptree> info()\r
 334         {\r
 335                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 336                 {\r
 337                         boost::property_tree::wptree info;\r
 338                         BOOST_FOREACH(auto& layer, layers_)                     \r
 339                                 info.add_child(L"layers.layer", layer.second.info())\r
 340                                         .add(L"index", layer.first);    \r
 341                         return info;\r
 342                 }, high_priority));\r
 343         }\r
 344 \r
 345         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 346         {\r
 347                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 348                 {\r
 349                         return layers_[index].info();\r
 350                 }, high_priority));\r
 351         }\r
 352 };\r
 353 \r
 354 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
 355 void stage::start(int tokens){impl_->start(tokens);}\r
 356 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 357 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
 358 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 359 void stage::clear_transforms(){impl_->clear_transforms();}\r
 360 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
 361 void stage::pause(int index){impl_->pause(index);}\r
 362 void stage::play(int index){impl_->play(index);}\r
 363 void stage::stop(int index){impl_->stop(index);}\r
 364 void stage::clear(int index){impl_->clear(index);}\r
 365 void stage::clear(){impl_->clear();}\r
 366 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 367 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 368 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 369 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 370 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 371 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 372 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 373 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 374 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 375 }}