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