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 #include <boost/range/algorithm_ext.hpp>\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 spawn_token()\r
 107         {\r
 108                 std::weak_ptr<impl> self = shared_from_this();\r
 109                 executor_.begin_invoke([=]{tick(self);});\r
 110         }\r
 111         \r
 112         void tick(const std::weak_ptr<impl>& self)\r
 113         {               \r
 114                 try\r
 115                 {\r
 116                         produce_timer_.restart();\r
 117 \r
 118                         std::map<int, safe_ptr<basic_frame>> frames;\r
 119                 \r
 120                         BOOST_FOREACH(auto& layer, layers_)                     \r
 121                                 frames[layer.first] = basic_frame::empty();     \r
 122 \r
 123                         tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
 124                         {\r
 125                                 auto transform = transforms_[layer.first].fetch_and_tick(1);\r
 126 \r
 127                                 int flags = frame_producer::NO_FLAG;\r
 128                                 if(format_desc_.field_mode != field_mode::progressive)\r
 129                                 {\r
 130                                         flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::DEINTERLACE_FLAG : frame_producer::NO_FLAG;\r
 131                                         flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::DEINTERLACE_FLAG : frame_producer::NO_FLAG;\r
 132                                 }\r
 133 \r
 134                                 if(transform.is_key)\r
 135                                         flags |= frame_producer::ALPHA_ONLY_FLAG;\r
 136 \r
 137                                 auto frame = layer.second.receive(flags);       \r
 138                                 \r
 139                                 auto frame1 = make_safe<core::basic_frame>(frame);\r
 140                                 frame1->get_frame_transform() = transform;\r
 141 \r
 142                                 if(format_desc_.field_mode != core::field_mode::progressive)\r
 143                                 {                               \r
 144                                         auto frame2 = make_safe<core::basic_frame>(frame);\r
 145                                         frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);\r
 146                                         frame1 = core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode);\r
 147                                 }\r
 148 \r
 149                                 frames[layer.first] = frame1;\r
 150                         });\r
 151                         \r
 152                         graph_->set_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);\r
 153                         \r
 154                         std::shared_ptr<void> ticket(nullptr, [self](void*)\r
 155                         {\r
 156                                 auto self2 = self.lock();\r
 157                                 if(self2)                               \r
 158                                         self2->executor_.begin_invoke([=]{tick(self);});                                \r
 159                         });\r
 160                                                 \r
 161                         target_->send(std::make_pair(frames, ticket));\r
 162 \r
 163                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 164                         tick_timer_.restart();\r
 165                 }\r
 166                 catch(...)\r
 167                 {\r
 168                         layers_.clear();\r
 169                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 170                 }               \r
 171         }\r
 172                 \r
 173         void set_transform(int index, const frame_transform& transform, unsigned int mix_duration, const std::wstring& tween)\r
 174         {\r
 175                 executor_.begin_invoke([=]\r
 176                 {\r
 177                         auto src = transforms_[index].fetch();\r
 178                         auto dst = transform;\r
 179                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 180                 }, high_priority);\r
 181         }\r
 182                                 \r
 183         void apply_transform(int index, const std::function<frame_transform(frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 184         {\r
 185                 executor_.begin_invoke([=]\r
 186                 {\r
 187                         auto src = transforms_[index].fetch();\r
 188                         auto dst = transform(src);\r
 189                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 190                 }, high_priority);\r
 191         }\r
 192 \r
 193         void clear_transforms(int index)\r
 194         {\r
 195                 executor_.begin_invoke([=]\r
 196                 {\r
 197                         transforms_.erase(index);\r
 198                 }, high_priority);\r
 199         }\r
 200 \r
 201         void clear_transforms()\r
 202         {\r
 203                 executor_.begin_invoke([=]\r
 204                 {\r
 205                         transforms_.clear();\r
 206                 }, high_priority);\r
 207         }\r
 208                 \r
 209         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 210         {\r
 211                 executor_.begin_invoke([=]\r
 212                 {\r
 213                         layers_[index].load(producer, preview, auto_play_delta);\r
 214                 }, high_priority);\r
 215         }\r
 216 \r
 217         void pause(int index)\r
 218         {               \r
 219                 executor_.begin_invoke([=]\r
 220                 {\r
 221                         layers_[index].pause();\r
 222                 }, high_priority);\r
 223         }\r
 224 \r
 225         void play(int index)\r
 226         {               \r
 227                 executor_.begin_invoke([=]\r
 228                 {\r
 229                         layers_[index].play();\r
 230                 }, high_priority);\r
 231         }\r
 232 \r
 233         void stop(int index)\r
 234         {               \r
 235                 executor_.begin_invoke([=]\r
 236                 {\r
 237                         layers_[index].stop();\r
 238                 }, high_priority);\r
 239         }\r
 240 \r
 241         void clear(int index)\r
 242         {\r
 243                 executor_.begin_invoke([=]\r
 244                 {\r
 245                         layers_.erase(index);\r
 246                 }, high_priority);\r
 247         }\r
 248                 \r
 249         void clear()\r
 250         {\r
 251                 executor_.begin_invoke([=]\r
 252                 {\r
 253                         layers_.clear();\r
 254                 }, high_priority);\r
 255         }       \r
 256         \r
 257         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 258         {\r
 259                 return std::move(*executor_.invoke([=]\r
 260                 {\r
 261                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 262                 }, high_priority));\r
 263         }\r
 264         \r
 265         void swap_layers(const safe_ptr<stage>& other)\r
 266         {\r
 267                 if(other->impl_.get() == this)\r
 268                         return;\r
 269                 \r
 270                 auto func = [=]\r
 271                 {\r
 272                         std::swap(layers_, other->impl_->layers_);\r
 273                 };              \r
 274                 executor_.begin_invoke([=]\r
 275                 {\r
 276                         other->impl_->executor_.invoke(func, high_priority);\r
 277                 }, high_priority);\r
 278         }\r
 279 \r
 280         void swap_layer(int index, int other_index)\r
 281         {\r
 282                 executor_.begin_invoke([=]\r
 283                 {\r
 284                         std::swap(layers_[index], layers_[other_index]);\r
 285                 }, high_priority);\r
 286         }\r
 287 \r
 288         void swap_layer(int index, int other_index, const safe_ptr<stage>& other)\r
 289         {\r
 290                 if(other->impl_.get() == this)\r
 291                         swap_layer(index, other_index);\r
 292                 else\r
 293                 {\r
 294                         auto func = [=]\r
 295                         {\r
 296                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 297                         };              \r
 298                         executor_.begin_invoke([=]\r
 299                         {\r
 300                                 other->impl_->executor_.invoke(func, high_priority);\r
 301                         }, high_priority);\r
 302                 }\r
 303         }\r
 304                 \r
 305         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 306         {\r
 307                 return executor_.begin_invoke([=]\r
 308                 {\r
 309                         return layers_[index].foreground();\r
 310                 }, high_priority);\r
 311         }\r
 312         \r
 313         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 314         {\r
 315                 return executor_.begin_invoke([=]\r
 316                 {\r
 317                         return layers_[index].background();\r
 318                 }, high_priority);\r
 319         }\r
 320         \r
 321         void set_video_format_desc(const video_format_desc& format_desc)\r
 322         {\r
 323                 executor_.begin_invoke([=]\r
 324                 {\r
 325                         format_desc_ = format_desc;\r
 326                 }, high_priority);\r
 327         }\r
 328 \r
 329         boost::unique_future<boost::property_tree::wptree> info()\r
 330         {\r
 331                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 332                 {\r
 333                         boost::property_tree::wptree info;\r
 334                         BOOST_FOREACH(auto& layer, layers_)                     \r
 335                                 info.add_child(L"layers.layer", layer.second.info())\r
 336                                         .add(L"index", layer.first);    \r
 337                         return info;\r
 338                 }, high_priority));\r
 339         }\r
 340 \r
 341         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 342         {\r
 343                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 344                 {\r
 345                         return layers_[index].info();\r
 346                 }, high_priority));\r
 347         }\r
 348 };\r
 349 \r
 350 stage::stage(const safe_ptr<stage::target_t>& target,const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc) : impl_(new impl(target, graph, format_desc)){}\r
 351 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
 352 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
 353 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 354 void stage::clear_transforms(){impl_->clear_transforms();}\r
 355 void stage::spawn_token(){impl_->spawn_token();}\r
 356 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
 357 void stage::pause(int index){impl_->pause(index);}\r
 358 void stage::play(int index){impl_->play(index);}\r
 359 void stage::stop(int index){impl_->stop(index);}\r
 360 void stage::clear(int index){impl_->clear(index);}\r
 361 void stage::clear(){impl_->clear();}\r
 362 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 363 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 364 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 365 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 366 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 367 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 368 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 369 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 370 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 371 }}