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 \r
  33 #include <core/producer/frame/frame_transform.h>\r
  34 \r
  35 #include <boost/foreach.hpp>\r
  36 #include <boost/timer.hpp>\r
  37 \r
  38 #include <tbb/parallel_for_each.h>\r
  39 #include <tbb/concurrent_unordered_map.h>\r
  40 \r
  41 #include <boost/property_tree/ptree.hpp>\r
  42 \r
  43 #include <map>\r
  44 \r
  45 namespace caspar { namespace core {\r
  46         \r
  47 template<typename T>\r
  48 class tweened_transform\r
  49 {\r
  50         T source_;\r
  51         T dest_;\r
  52         int duration_;\r
  53         int time_;\r
  54         tweener_t tweener_;\r
  55 public: \r
  56         tweened_transform()\r
  57                 : duration_(0)\r
  58                 , time_(0)\r
  59                 , tweener_(get_tweener(L"linear")){}\r
  60         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  61                 : source_(source)\r
  62                 , dest_(dest)\r
  63                 , duration_(duration)\r
  64                 , time_(0)\r
  65                 , tweener_(get_tweener(tween)){}\r
  66         \r
  67         const T& source() const\r
  68         {\r
  69                 return source_;\r
  70         }\r
  71         \r
  72         const T& dest() const\r
  73         {\r
  74                 return dest_;\r
  75         }\r
  76 \r
  77         T fetch()\r
  78         {\r
  79                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  80         }\r
  81 \r
  82         T fetch_and_tick(int num)\r
  83         {                                               \r
  84                 time_ = std::min(time_+num, duration_);\r
  85                 return fetch();\r
  86         }\r
  87 };\r
  88 \r
  89 struct stage::implementation : public std::enable_shared_from_this<implementation>\r
  90                                                          , boost::noncopyable\r
  91 {               \r
  92         safe_ptr<diagnostics::graph>                                                                                             graph_;\r
  93         safe_ptr<stage::target_t>                                                                                                        target_;\r
  94         video_format_desc                                                                                                                        format_desc_;\r
  95                                                                                                                                                                  \r
  96         boost::timer                                                                                                                             produce_timer_;\r
  97         boost::timer                                                                                                                             tick_timer_;\r
  98                                                                                                                                                                  \r
  99         std::map<int, layer>                                                                                                             layers_;       \r
 100         tbb::concurrent_unordered_map<int, tweened_transform<core::frame_transform>> transforms_;       \r
 101 \r
 102         executor                                                executor_;\r
 103 public:\r
 104         implementation(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<stage::target_t>& target, const video_format_desc& format_desc)  \r
 105                 : graph_(graph)\r
 106                 , format_desc_(format_desc)\r
 107                 , target_(target)\r
 108                 , executor_(L"stage")\r
 109         {\r
 110                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f, 0.8));      \r
 111                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 112         }\r
 113 \r
 114         void spawn_token()\r
 115         {\r
 116                 std::weak_ptr<implementation> self = shared_from_this();\r
 117                 executor_.begin_invoke([=]{tick(self);});\r
 118         }\r
 119                                                         \r
 120         void tick(const std::weak_ptr<implementation>& self)\r
 121         {               \r
 122                 try\r
 123                 {\r
 124                         produce_timer_.restart();\r
 125 \r
 126                         std::map<int, safe_ptr<basic_frame>> frames;\r
 127                 \r
 128                         BOOST_FOREACH(auto& layer, layers_)                     \r
 129                                 frames[layer.first] = basic_frame::empty();     \r
 130 \r
 131                         tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
 132                         {\r
 133                                 auto transform = transforms_[layer.first].fetch_and_tick(1);\r
 134 \r
 135                                 int hints = frame_producer::NO_HINT;\r
 136                                 if(format_desc_.field_mode != field_mode::progressive)\r
 137                                 {\r
 138                                         hints |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::DEINTERLACE_HINT : frame_producer::NO_HINT;\r
 139                                         hints |= std::abs(transform.fill_translation[1]) > 0.0001 ? frame_producer::DEINTERLACE_HINT : frame_producer::NO_HINT;\r
 140                                 }\r
 141 \r
 142                                 if(transform.is_key)\r
 143                                         hints |= frame_producer::ALPHA_HINT;\r
 144 \r
 145                                 auto frame = layer.second.receive(hints);       \r
 146                                 \r
 147                                 auto frame1 = make_safe<core::basic_frame>(frame);\r
 148                                 frame1->get_frame_transform() = transform;\r
 149 \r
 150                                 if(format_desc_.field_mode != core::field_mode::progressive)\r
 151                                 {                               \r
 152                                         auto frame2 = make_safe<core::basic_frame>(frame);\r
 153                                         frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);\r
 154                                         frame1 = core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode);\r
 155                                 }\r
 156 \r
 157                                 frames[layer.first] = frame1;\r
 158                         });\r
 159                         \r
 160                         graph_->set_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);\r
 161                         \r
 162                         std::shared_ptr<void> ticket(nullptr, [self](void*)\r
 163                         {\r
 164                                 auto self2 = self.lock();\r
 165                                 if(self2)                               \r
 166                                         self2->executor_.begin_invoke([=]{tick(self);});                                \r
 167                         });\r
 168 \r
 169                         target_->send(std::make_pair(frames, ticket));\r
 170 \r
 171                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 172                         tick_timer_.restart();\r
 173                 }\r
 174                 catch(...)\r
 175                 {\r
 176                         layers_.clear();\r
 177                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 178                 }               \r
 179         }\r
 180                 \r
 181         void set_transform(int index, const frame_transform& transform, unsigned int mix_duration, const std::wstring& tween)\r
 182         {\r
 183                 executor_.begin_invoke([=]\r
 184                 {\r
 185                         auto src = transforms_[index].fetch();\r
 186                         auto dst = transform;\r
 187                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 188                 }, high_priority);\r
 189         }\r
 190                                         \r
 191         void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, std::wstring>>& transforms)\r
 192         {\r
 193                 executor_.begin_invoke([=]\r
 194                 {\r
 195                         BOOST_FOREACH(auto& transform, transforms)\r
 196                         {\r
 197                                 auto& tween = transforms_[std::get<0>(transform)];\r
 198                                 auto src = tween.fetch();\r
 199                                 auto dst = std::get<1>(transform)(tween.dest());\r
 200                                 transforms_[std::get<0>(transform)] = tweened_transform<frame_transform>(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 201                         }\r
 202                 }, high_priority);\r
 203         }\r
 204                                                 \r
 205         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const std::wstring& tween)\r
 206         {\r
 207                 executor_.begin_invoke([=]\r
 208                 {\r
 209                         auto src = transforms_[index].fetch();\r
 210                         auto dst = transform(src);\r
 211                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 212                 }, high_priority);\r
 213         }\r
 214 \r
 215         void clear_transforms(int index)\r
 216         {\r
 217                 executor_.begin_invoke([=]\r
 218                 {\r
 219                         transforms_[index] = tweened_transform<core::frame_transform>();\r
 220                 }, high_priority);\r
 221         }\r
 222 \r
 223         void clear_transforms()\r
 224         {\r
 225                 executor_.begin_invoke([=]\r
 226                 {\r
 227                         transforms_.clear();\r
 228                 }, high_priority);\r
 229         }\r
 230                 \r
 231         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 232         {\r
 233                 executor_.begin_invoke([=]\r
 234                 {\r
 235                         layers_[index].load(producer, preview, auto_play_delta);\r
 236                 }, high_priority);\r
 237         }\r
 238 \r
 239         void pause(int index)\r
 240         {               \r
 241                 executor_.begin_invoke([=]\r
 242                 {\r
 243                         layers_[index].pause();\r
 244                 }, high_priority);\r
 245         }\r
 246 \r
 247         void play(int index)\r
 248         {               \r
 249                 executor_.begin_invoke([=]\r
 250                 {\r
 251                         layers_[index].play();\r
 252                 }, high_priority);\r
 253         }\r
 254 \r
 255         void stop(int index)\r
 256         {               \r
 257                 executor_.begin_invoke([=]\r
 258                 {\r
 259                         layers_[index].stop();\r
 260                 }, high_priority);\r
 261         }\r
 262 \r
 263         void clear(int index)\r
 264         {\r
 265                 executor_.begin_invoke([=]\r
 266                 {\r
 267                         layers_.erase(index);\r
 268                 }, high_priority);\r
 269         }\r
 270                 \r
 271         void clear()\r
 272         {\r
 273                 executor_.begin_invoke([=]\r
 274                 {\r
 275                         layers_.clear();\r
 276                 }, high_priority);\r
 277         }       \r
 278         \r
 279         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 280         {\r
 281                 return std::move(*executor_.invoke([=]\r
 282                 {\r
 283                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 284                 }, high_priority));\r
 285         }\r
 286         \r
 287         void swap_layers(const safe_ptr<stage>& other)\r
 288         {\r
 289                 if(other->impl_.get() == this)\r
 290                         return;\r
 291                 \r
 292                 auto func = [=]\r
 293                 {\r
 294                         std::swap(layers_, other->impl_->layers_);\r
 295                 };              \r
 296                 executor_.begin_invoke([=]\r
 297                 {\r
 298                         other->impl_->executor_.invoke(func, high_priority);\r
 299                 }, high_priority);\r
 300         }\r
 301 \r
 302         void swap_layer(int index, size_t other_index)\r
 303         {\r
 304                 executor_.begin_invoke([=]\r
 305                 {\r
 306                         std::swap(layers_[index], layers_[other_index]);\r
 307                 }, high_priority);\r
 308         }\r
 309 \r
 310         void swap_layer(int index, size_t other_index, const safe_ptr<stage>& other)\r
 311         {\r
 312                 if(other->impl_.get() == this)\r
 313                         swap_layer(index, other_index);\r
 314                 else\r
 315                 {\r
 316                         auto func = [=]\r
 317                         {\r
 318                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 319                         };              \r
 320                         executor_.begin_invoke([=]\r
 321                         {\r
 322                                 other->impl_->executor_.invoke(func, high_priority);\r
 323                         }, high_priority);\r
 324                 }\r
 325         }\r
 326                 \r
 327         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 328         {\r
 329                 return executor_.begin_invoke([=]\r
 330                 {\r
 331                         return layers_[index].foreground();\r
 332                 }, high_priority);\r
 333         }\r
 334         \r
 335         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 336         {\r
 337                 return executor_.begin_invoke([=]\r
 338                 {\r
 339                         return layers_[index].background();\r
 340                 }, high_priority);\r
 341         }\r
 342         \r
 343         void set_video_format_desc(const video_format_desc& format_desc)\r
 344         {\r
 345                 executor_.begin_invoke([=]\r
 346                 {\r
 347                         format_desc_ = format_desc;\r
 348                 }, high_priority);\r
 349         }\r
 350 \r
 351         boost::unique_future<boost::property_tree::wptree> info()\r
 352         {\r
 353                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 354                 {\r
 355                         boost::property_tree::wptree info;\r
 356                         BOOST_FOREACH(auto& layer, layers_)                     \r
 357                                 info.add_child(L"layers.layer", layer.second.info())\r
 358                                         .add(L"index", layer.first);    \r
 359                         return info;\r
 360                 }, high_priority));\r
 361         }\r
 362 \r
 363         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 364         {\r
 365                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 366                 {\r
 367                         return layers_[index].info();\r
 368                 }, high_priority));\r
 369         }\r
 370 };\r
 371 \r
 372 stage::stage(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<target_t>& target, const video_format_desc& format_desc) : impl_(new implementation(graph, target, format_desc)){}\r
 373 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 374 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
 375 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 376 void stage::clear_transforms(){impl_->clear_transforms();}\r
 377 void stage::spawn_token(){impl_->spawn_token();}\r
 378 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
 379 void stage::pause(int index){impl_->pause(index);}\r
 380 void stage::play(int index){impl_->play(index);}\r
 381 void stage::stop(int index){impl_->stop(index);}\r
 382 void stage::clear(int index){impl_->clear(index);}\r
 383 void stage::clear(){impl_->clear();}\r
 384 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 385 void stage::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
 386 void stage::swap_layer(int index, size_t other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 387 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 388 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 389 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 390 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 391 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 392 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 393 }}