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 set_transform(int index, const 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;\r
 180                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 181                 }, high_priority);\r
 182         }\r
 183                                 \r
 184         void apply_transform(int index, const std::function<frame_transform(frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 185         {\r
 186                 executor_.begin_invoke([=]\r
 187                 {\r
 188                         auto src = transforms_[index].fetch();\r
 189                         auto dst = transform(src);\r
 190                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 191                 }, high_priority);\r
 192         }\r
 193 \r
 194         void clear_transforms(int index)\r
 195         {\r
 196                 executor_.begin_invoke([=]\r
 197                 {\r
 198                         transforms_.erase(index);\r
 199                 }, high_priority);\r
 200         }\r
 201 \r
 202         void clear_transforms()\r
 203         {\r
 204                 executor_.begin_invoke([=]\r
 205                 {\r
 206                         transforms_.clear();\r
 207                 }, high_priority);\r
 208         }\r
 209                 \r
 210         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 211         {\r
 212                 executor_.begin_invoke([=]\r
 213                 {\r
 214                         layers_[index].load(producer, preview, auto_play_delta);\r
 215                 }, high_priority);\r
 216         }\r
 217 \r
 218         void pause(int index)\r
 219         {               \r
 220                 executor_.begin_invoke([=]\r
 221                 {\r
 222                         layers_[index].pause();\r
 223                 }, high_priority);\r
 224         }\r
 225 \r
 226         void play(int index)\r
 227         {               \r
 228                 executor_.begin_invoke([=]\r
 229                 {\r
 230                         layers_[index].play();\r
 231                 }, high_priority);\r
 232         }\r
 233 \r
 234         void stop(int index)\r
 235         {               \r
 236                 executor_.begin_invoke([=]\r
 237                 {\r
 238                         layers_[index].stop();\r
 239                 }, high_priority);\r
 240         }\r
 241 \r
 242         void clear(int index)\r
 243         {\r
 244                 executor_.begin_invoke([=]\r
 245                 {\r
 246                         layers_.erase(index);\r
 247                 }, high_priority);\r
 248         }\r
 249                 \r
 250         void clear()\r
 251         {\r
 252                 executor_.begin_invoke([=]\r
 253                 {\r
 254                         layers_.clear();\r
 255                 }, high_priority);\r
 256         }       \r
 257         \r
 258         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 259         {\r
 260                 return std::move(*executor_.invoke([=]\r
 261                 {\r
 262                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 263                 }, high_priority));\r
 264         }\r
 265         \r
 266         void swap_layers(const safe_ptr<stage>& other)\r
 267         {\r
 268                 if(other->impl_.get() == this)\r
 269                         return;\r
 270                 \r
 271                 auto func = [=]\r
 272                 {\r
 273                         std::swap(layers_, other->impl_->layers_);\r
 274                 };              \r
 275                 executor_.begin_invoke([=]\r
 276                 {\r
 277                         other->impl_->executor_.invoke(func, high_priority);\r
 278                 }, high_priority);\r
 279         }\r
 280 \r
 281         void swap_layer(int index, int other_index)\r
 282         {\r
 283                 executor_.begin_invoke([=]\r
 284                 {\r
 285                         std::swap(layers_[index], layers_[other_index]);\r
 286                 }, high_priority);\r
 287         }\r
 288 \r
 289         void swap_layer(int index, int other_index, const safe_ptr<stage>& other)\r
 290         {\r
 291                 if(other->impl_.get() == this)\r
 292                         swap_layer(index, other_index);\r
 293                 else\r
 294                 {\r
 295                         auto func = [=]\r
 296                         {\r
 297                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 298                         };              \r
 299                         executor_.begin_invoke([=]\r
 300                         {\r
 301                                 other->impl_->executor_.invoke(func, high_priority);\r
 302                         }, high_priority);\r
 303                 }\r
 304         }\r
 305                 \r
 306         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 307         {\r
 308                 return executor_.begin_invoke([=]\r
 309                 {\r
 310                         return layers_[index].foreground();\r
 311                 }, high_priority);\r
 312         }\r
 313         \r
 314         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 315         {\r
 316                 return executor_.begin_invoke([=]\r
 317                 {\r
 318                         return layers_[index].background();\r
 319                 }, high_priority);\r
 320         }\r
 321         \r
 322         void set_video_format_desc(const video_format_desc& format_desc)\r
 323         {\r
 324                 executor_.begin_invoke([=]\r
 325                 {\r
 326                         format_desc_ = format_desc;\r
 327                 }, high_priority);\r
 328         }\r
 329 \r
 330         boost::unique_future<boost::property_tree::wptree> info()\r
 331         {\r
 332                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 333                 {\r
 334                         boost::property_tree::wptree info;\r
 335                         BOOST_FOREACH(auto& layer, layers_)                     \r
 336                                 info.add_child(L"layers.layer", layer.second.info())\r
 337                                         .add(L"index", layer.first);    \r
 338                         return info;\r
 339                 }, high_priority));\r
 340         }\r
 341 \r
 342         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 343         {\r
 344                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 345                 {\r
 346                         return layers_[index].info();\r
 347                 }, high_priority));\r
 348         }\r
 349 };\r
 350 \r
 351 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
 352 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);}\r
 353 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);}\r
 354 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 355 void stage::clear_transforms(){impl_->clear_transforms();}\r
 356 void stage::spawn_token(){impl_->spawn_token();}\r
 357 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
 358 void stage::pause(int index){impl_->pause(index);}\r
 359 void stage::play(int index){impl_->play(index);}\r
 360 void stage::stop(int index){impl_->stop(index);}\r
 361 void stage::clear(int index){impl_->clear(index);}\r
 362 void stage::clear(){impl_->clear();}\r
 363 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 364 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 365 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 366 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 367 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 368 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 369 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 370 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 371 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 372 }}