git.sesse.net Git - casparcg/blob - core/producer/scene/scene_producer.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Helge Norberg, helge.norberg@svt.se
  20 */
  21
  22 #include "../../StdAfx.h"
  23
  24 #include <common/future.h>
  25 #include <common/prec_timer.h>
  26
  27 #include <boost/algorithm/string/split.hpp>
  28 #include <boost/algorithm/string.hpp>
  29
  30 #include "scene_producer.h"
  31
  32 #include "../../frame/draw_frame.h"
  33 #include "../../interaction/interaction_aggregator.h"
  34 #include "../text/text_producer.h"
  35
  36 namespace caspar { namespace core { namespace scene {
  37
  38 layer::layer(const std::wstring& name, const spl::shared_ptr<frame_producer>& producer)
  39         : name(name), producer(producer)
  40 {
  41         crop.lower_right.x.bind(producer.get()->pixel_constraints().width);
  42         crop.lower_right.y.bind(producer.get()->pixel_constraints().height);
  43         perspective.upper_right.x.bind(producer.get()->pixel_constraints().width);
  44         perspective.lower_right.x.bind(producer.get()->pixel_constraints().width);
  45         perspective.lower_right.y.bind(producer.get()->pixel_constraints().height);
  46         perspective.lower_left.y.bind(producer.get()->pixel_constraints().height);
  47 }
  48
  49 adjustments::adjustments()
  50         : opacity(1.0)
  51 {
  52 }
  53
  54 struct timeline
  55 {
  56         std::map<int64_t, keyframe> keyframes;
  57
  58         void on_frame(int64_t frame)
  59         {
  60                 auto before = --keyframes.upper_bound(frame);
  61                 bool found_before = before != keyframes.end() && before->first < frame;
  62                 auto after = keyframes.upper_bound(frame);
  63                 bool found_after = after != keyframes.end() && after->first > frame;
  64                 auto exact_frame = keyframes.find(frame);
  65                 bool found_exact_frame = exact_frame != keyframes.end();
  66
  67                 if (found_exact_frame)
  68                 {
  69                         exact_frame->second.on_destination_frame();
  70
  71                         auto next_frame = ++exact_frame;
  72
  73                         if (next_frame != keyframes.end() && next_frame->second.on_start_animate)
  74                                 next_frame->second.on_start_animate();
  75                 }
  76                 else if (found_after)
  77                 {
  78                         int64_t start_frame = 0;
  79
  80                         if (found_before)
  81                         {
  82                                 start_frame = before->first;
  83                         }
  84
  85                         if (after->second.on_start_animate && frame == 0)
  86                                 after->second.on_start_animate();
  87                         else if (after->second.on_animate_to)
  88                                 after->second.on_animate_to(start_frame, frame);
  89                 }
  90         }
  91 };
  92
  93 mark_action get_mark_action(const std::wstring& name)
  94 {
  95         if (name == L"start")
  96                 return mark_action::start;
  97         else if (name == L"stop")
  98                 return mark_action::stop;
  99         else if (name == L"jump_to")
 100                 return mark_action::jump_to;
 101         else if (name == L"remove")
 102                 return mark_action::remove;
 103         else
 104                 CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Invalid mark_action " + name));
 105 }
 106
 107 struct marker
 108 {
 109         mark_action             action;
 110         std::wstring    label_argument;
 111
 112         marker(mark_action action, const std::wstring& label_argument)
 113                 : action(action)
 114                 , label_argument(label_argument)
 115         {
 116         }
 117 };
 118
 119 struct scene_producer::impl
 120 {
 121         std::wstring                                                                                    producer_name_;
 122         constraints                                                                                             pixel_constraints_;
 123         video_format_desc                                                                               format_desc_;
 124         std::list<layer>                                                                                layers_;
 125         interaction_aggregator                                                                  aggregator_;
 126         binding<double>                                                                                 frame_number_;
 127         binding<int64_t>                                                                                timeline_frame_number_;
 128         binding<double>                                                                                 speed_;
 129         mutable tbb::atomic<int64_t>                                                    m_x_;
 130         mutable tbb::atomic<int64_t>                                                    m_y_;
 131         binding<int64_t>                                                                                mouse_x_;
 132         binding<int64_t>                                                                                mouse_y_;
 133         double                                                                                                  frame_fraction_         = 0.0;
 134         std::map<void*, timeline>                                                               timelines_;
 135         std::map<std::wstring, std::shared_ptr<core::variable>> variables_;
 136         std::vector<std::wstring>                                                               variable_names_;
 137         std::multimap<int64_t, marker>                                                  markers_by_frame_;
 138         monitor::subject                                                                                monitor_subject_;
 139         bool                                                                                                    paused_                         = true;
 140         bool                                                                                                    removed_                        = false;
 141         bool                                                                                                    going_to_mark_          = false;
 142
 143         impl(std::wstring producer_name, int width, int height, const video_format_desc& format_desc)
 144                 : producer_name_(std::move(producer_name))
 145                 , format_desc_(format_desc)
 146                 , aggregator_([=] (double x, double y) { return collission_detect(x, y); })
 147         {
 148                 auto speed_variable = std::make_shared<core::variable_impl<double>>(L"1.0", true, 1.0);
 149                 store_variable(L"scene_speed", speed_variable);
 150                 speed_ = speed_variable->value();
 151
 152                 auto frame_variable = std::make_shared<core::variable_impl<double>>(L"-1", true, -1);
 153                 store_variable(L"frame", frame_variable);
 154                 frame_number_ = frame_variable->value();
 155
 156                 auto timeline_frame_variable = std::make_shared<core::variable_impl<int64_t>>(L"-1", false, -1);
 157                 store_variable(L"timeline_frame", timeline_frame_variable);
 158                 timeline_frame_number_ = timeline_frame_variable->value();
 159
 160                 auto mouse_x_variable = std::make_shared<core::variable_impl<int64_t>>(L"0", false, 0);
 161                 auto mouse_y_variable = std::make_shared<core::variable_impl<int64_t>>(L"0", false, 0);
 162                 store_variable(L"mouse_x", mouse_x_variable);
 163                 store_variable(L"mouse_y", mouse_y_variable);
 164                 mouse_x_ = mouse_x_variable->value();
 165                 mouse_y_ = mouse_y_variable->value();
 166                 m_x_ = 0;
 167                 m_y_ = 0;
 168
 169                 auto scene_width = std::make_shared<core::variable_impl<double>>(boost::lexical_cast<std::wstring>(width), false, width);
 170                 auto scene_height = std::make_shared<core::variable_impl<double>>(boost::lexical_cast<std::wstring>(height), false, height);
 171                 store_variable(L"scene_width", scene_width);
 172                 store_variable(L"scene_height", scene_height);
 173                 pixel_constraints_.width = scene_width->value();
 174                 pixel_constraints_.height = scene_height->value();
 175         }
 176
 177         layer& create_layer(
 178                         const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 179         {
 180                 layer layer(name, producer);
 181
 182                 layer.position.x.set(x);
 183                 layer.position.y.set(y);
 184
 185                 layers_.push_back(layer);
 186
 187                 return layers_.back();
 188         }
 189
 190         void reverse_layers() {
 191                 layers_.reverse();
 192         }
 193
 194         void store_keyframe(void* timeline_identity, const keyframe& k)
 195         {
 196                 timelines_[timeline_identity].keyframes.insert(std::make_pair(k.destination_frame, k));
 197         }
 198
 199         void store_variable(
 200                         const std::wstring& name, const std::shared_ptr<core::variable>& var)
 201         {
 202                 variables_.insert(std::make_pair(name, var));
 203                 variable_names_.push_back(name);
 204         }
 205
 206         void add_mark(int64_t frame, mark_action action, const std::wstring& label)
 207         {
 208                 markers_by_frame_.insert(std::make_pair(frame, marker(action, label)));
 209         }
 210
 211         core::variable& get_variable(const std::wstring& name)
 212         {
 213                 auto found = variables_.find(name);
 214
 215                 if (found == variables_.end())
 216                         CASPAR_THROW_EXCEPTION(user_error() << msg_info(name + L" not found in scene"));
 217
 218                 return *found->second;
 219         }
 220
 221         const std::vector<std::wstring>& get_variables() const
 222         {
 223                 return variable_names_;
 224         }
 225
 226         binding<int64_t> timeline_frame()
 227         {
 228                 return timeline_frame_number_;
 229         }
 230
 231         frame_transform get_transform(const layer& layer) const
 232         {
 233                 frame_transform transform;
 234
 235                 auto& anchor            = transform.image_transform.anchor;
 236                 auto& pos                       = transform.image_transform.fill_translation;
 237                 auto& scale                     = transform.image_transform.fill_scale;
 238                 auto& angle                     = transform.image_transform.angle;
 239                 auto& crop                      = transform.image_transform.crop;
 240                 auto& pers                      = transform.image_transform.perspective;
 241
 242                 anchor[0]       = layer.anchor.x.get()                                                                          / layer.producer.get()->pixel_constraints().width.get();
 243                 anchor[1]       = layer.anchor.y.get()                                                                          / layer.producer.get()->pixel_constraints().height.get();
 244                 pos[0]          = layer.position.x.get()                                                                        / pixel_constraints_.width.get();
 245                 pos[1]          = layer.position.y.get()                                                                        / pixel_constraints_.height.get();
 246                 scale[0]        = layer.producer.get()->pixel_constraints().width.get()         / pixel_constraints_.width.get();
 247                 scale[1]        = layer.producer.get()->pixel_constraints().height.get()        / pixel_constraints_.height.get();
 248                 crop.ul[0]      = layer.crop.upper_left.x.get()                                                         / layer.producer.get()->pixel_constraints().width.get();
 249                 crop.ul[1]      = layer.crop.upper_left.y.get()                                                         / layer.producer.get()->pixel_constraints().height.get();
 250                 crop.lr[0]      = layer.crop.lower_right.x.get()                                                        / layer.producer.get()->pixel_constraints().width.get();
 251                 crop.lr[1]      = layer.crop.lower_right.y.get()                                                        / layer.producer.get()->pixel_constraints().height.get();
 252                 pers.ul[0]      = layer.perspective.upper_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 253                 pers.ul[1]      = layer.perspective.upper_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 254                 pers.ur[0]      = layer.perspective.upper_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 255                 pers.ur[1]      = layer.perspective.upper_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 256                 pers.lr[0]      = layer.perspective.lower_right.x.get()                                         / layer.producer.get()->pixel_constraints().width.get();
 257                 pers.lr[1]      = layer.perspective.lower_right.y.get()                                         / layer.producer.get()->pixel_constraints().height.get();
 258                 pers.ll[0]      = layer.perspective.lower_left.x.get()                                          / layer.producer.get()->pixel_constraints().width.get();
 259                 pers.ll[1]      = layer.perspective.lower_left.y.get()                                          / layer.producer.get()->pixel_constraints().height.get();
 260
 261                 static const double PI = 3.141592653589793;
 262
 263                 angle           = layer.rotation.get() * PI / 180.0;
 264
 265                 transform.image_transform.opacity                               = layer.adjustments.opacity.get();
 266                 transform.image_transform.is_key                                = layer.is_key.get();
 267                 transform.image_transform.use_mipmap                    = layer.use_mipmap.get();
 268                 transform.image_transform.blend_mode                    = layer.blend_mode.get();
 269                 transform.image_transform.chroma.enable                 = layer.chroma_key.enable.get();
 270                 transform.image_transform.chroma.target_hue             = layer.chroma_key.target_hue.get();
 271                 transform.image_transform.chroma.hue_width              = layer.chroma_key.hue_width.get();
 272                 transform.image_transform.chroma.min_saturation = layer.chroma_key.min_saturation.get();
 273                 transform.image_transform.chroma.min_brightness = layer.chroma_key.min_brightness.get();
 274                 transform.image_transform.chroma.softness               = layer.chroma_key.softness.get();
 275                 transform.image_transform.chroma.spill                  = layer.chroma_key.spill.get();
 276                 transform.image_transform.chroma.spill_darken   = layer.chroma_key.spill_darken.get();
 277
 278                 // Mark as sublayer, so it will be composited separately by the mixer.
 279                 transform.image_transform.layer_depth = 1;
 280
 281                 return transform;
 282         }
 283
 284         boost::optional<std::pair<int64_t, marker>> find_first_stop_or_jump_or_remove(int64_t start_frame, int64_t end_frame)
 285         {
 286                 auto lower = markers_by_frame_.lower_bound(start_frame);
 287                 auto upper = markers_by_frame_.upper_bound(end_frame);
 288
 289                 if (lower == markers_by_frame_.end())
 290                         return boost::none;
 291
 292                 for (auto iter = lower; iter != upper; ++iter)
 293                 {
 294                         auto action = iter->second.action;
 295
 296                         if (action == mark_action::stop || action == mark_action::jump_to || action == mark_action::remove)
 297                                 return std::make_pair(iter->first, iter->second);
 298                 }
 299
 300                 return boost::none;
 301         }
 302
 303         boost::optional<std::pair<int64_t, marker>> find_first_start(int64_t start_frame)
 304         {
 305                 auto lower = markers_by_frame_.lower_bound(start_frame);
 306
 307                 if (lower == markers_by_frame_.end())
 308                         return boost::none;
 309
 310                 for (auto iter = lower; iter != markers_by_frame_.end(); ++iter)
 311                 {
 312                         auto action = iter->second.action;
 313
 314                         if (action == mark_action::start)
 315                                 return std::make_pair(iter->first, iter->second);
 316                 }
 317
 318                 return boost::none;
 319         }
 320
 321         draw_frame render_frame()
 322         {
 323                 if (format_desc_.field_count == 1)
 324                         return render_progressive_frame();
 325                 else
 326                 {
 327                         prec_timer timer;
 328                         timer.tick_millis(0);
 329
 330                         auto field1 = render_progressive_frame();
 331
 332                         timer.tick(0.5 / format_desc_.fps);
 333
 334                         auto field2 = render_progressive_frame();
 335
 336                         return draw_frame::interlace(field1, field2, format_desc_.field_mode);
 337                 }
 338         }
 339
 340         void advance()
 341         {
 342                 frame_fraction_ += speed_.get();
 343
 344                 if (std::abs(frame_fraction_) >= 1.0)
 345                 {
 346                         int64_t delta = static_cast<int64_t>(frame_fraction_);
 347                         auto previous_frame = timeline_frame_number_.get();
 348                         auto next_frame = timeline_frame_number_.get() + delta;
 349                         auto marker = find_first_stop_or_jump_or_remove(previous_frame + 1, next_frame);
 350
 351                         if (marker && marker->second.action == mark_action::remove)
 352                         {
 353                                 remove();
 354                         }
 355                         if (marker && !going_to_mark_)
 356                         {
 357                                 if (marker->second.action == mark_action::stop)
 358                                 {
 359                                         timeline_frame_number_.set(marker->first);
 360                                         frame_fraction_ = 0.0;
 361                                         paused_ = true;
 362                                 }
 363                                 else if (marker->second.action == mark_action::jump_to)
 364                                 {
 365                                         go_to_marker(marker->second.label_argument, 0);
 366                                 }
 367                         }
 368                         else
 369                         {
 370                                 timeline_frame_number_.set(next_frame);
 371                                 frame_fraction_ -= delta;
 372                         }
 373
 374                         going_to_mark_ = false;
 375                 }
 376         }
 377
 378         draw_frame render_progressive_frame()
 379         {
 380                 if (removed_)
 381                         return draw_frame::empty();
 382
 383                 mouse_x_.set(m_x_);
 384                 mouse_y_.set(m_y_);
 385
 386                 if (!paused_)
 387                         advance();
 388
 389                 frame_number_.set(frame_number_.get() + speed_.get());
 390
 391                 for (auto& timeline : timelines_)
 392                         timeline.second.on_frame(timeline_frame_number_.get());
 393
 394                 std::vector<draw_frame> frames;
 395
 396                 for (auto& layer : layers_)
 397                 {
 398                         if (layer.hidden.get())
 399                                 continue;
 400
 401                         draw_frame frame(layer.producer.get()->receive());
 402                         frame.transform() = get_transform(layer);
 403                         frames.push_back(frame);
 404                 }
 405
 406                 return draw_frame(frames);
 407         }
 408
 409         void on_interaction(const interaction_event::ptr& event)
 410         {
 411                 aggregator_.translate_and_send(event);
 412         }
 413
 414         bool collides(double x, double y) const
 415         {
 416                 m_x_ = static_cast<int64_t>(x * pixel_constraints_.width.get());
 417                 m_y_ = static_cast<int64_t>(y * pixel_constraints_.height.get());
 418
 419                 return static_cast<bool>((collission_detect(x, y)));
 420         }
 421
 422         boost::optional<interaction_target> collission_detect(double x, double y) const
 423         {
 424                 for (auto& layer : layers_ | boost::adaptors::reversed)
 425                 {
 426                         if (layer.hidden.get())
 427                                 continue;
 428
 429                         auto transform = get_transform(layer);
 430                         auto translated = translate(x, y, transform);
 431
 432                         if (translated.first >= 0.0
 433                                 && translated.first <= 1.0
 434                                 && translated.second >= 0.0
 435                                 && translated.second <= 1.0
 436                                 && layer.producer.get()->collides(translated.first, translated.second))
 437                         {
 438                                 return std::make_pair(transform, static_cast<interaction_sink*>(layer.producer.get().get()));
 439                         }
 440                 }
 441
 442                 return boost::optional<interaction_target>();
 443         }
 444
 445         std::future<std::wstring> call(const std::vector<std::wstring>& params)
 446         {
 447                 if (!params.empty() && boost::ends_with(params.at(0), L"()"))
 448                         return make_ready_future(handle_call(params));
 449                 else
 450                         return make_ready_future(handle_variable_set(params));
 451         }
 452
 453         std::wstring handle_variable_set(const std::vector<std::wstring>& params)
 454         {
 455                 for (int i = 0; i + 1 < params.size(); i += 2)
 456                 {
 457                         auto found = variables_.find(boost::to_lower_copy(params.at(i)));
 458
 459                         if (found != variables_.end() && found->second->is_public())
 460                                 found->second->from_string(params.at(i + 1));
 461                 }
 462
 463                 return L"";
 464         }
 465
 466         std::wstring handle_call(const std::vector<std::wstring>& params)
 467         {
 468                 auto call = params.at(0);
 469
 470                 if (call == L"play()")
 471                         go_to_marker(params.at(1), -1);
 472                 else if (call == L"remove()")
 473                         remove();
 474                 else if (call == L"next()")
 475                         next();
 476                 else
 477                         CASPAR_THROW_EXCEPTION(user_error() << msg_info(L"Unknown call " + call));
 478
 479                 return L"";
 480         }
 481
 482         void remove()
 483         {
 484                 removed_ = true;
 485                 layers_.clear();
 486         }
 487
 488         void next()
 489         {
 490                 auto marker = find_first_start(timeline_frame_number_.get() + 1);
 491
 492                 if (marker)
 493                 {
 494                         timeline_frame_number_.set(marker->first - 1);
 495                         frame_fraction_ = 0.0;
 496                         paused_ = false;
 497                         going_to_mark_ = true;
 498                 }
 499                 else
 500                 {
 501                         remove();
 502                 }
 503         }
 504
 505         void go_to_marker(const std::wstring& marker_name, int64_t offset)
 506         {
 507                 for (auto& marker : markers_by_frame_)
 508                 {
 509                         if (marker.second.label_argument == marker_name && marker.second.action == mark_action::start)
 510                         {
 511                                 timeline_frame_number_.set(marker.first + offset);
 512                                 frame_fraction_ = 0.0;
 513                                 paused_ = false;
 514                                 going_to_mark_ = true;
 515
 516                                 return;
 517                         }
 518                 }
 519
 520                 if (marker_name == L"intro")
 521                 {
 522                         timeline_frame_number_.set(offset);
 523                         frame_fraction_ = 0.0;
 524                         paused_ = false;
 525                         going_to_mark_ = true;
 526                 }
 527                 else if (marker_name == L"outro")
 528                 {
 529                         remove();
 530                 }
 531                 else
 532                         CASPAR_LOG(info) << print() << L" no marker called " << marker_name << " found";
 533         }
 534
 535         std::wstring print() const
 536         {
 537                 return L"scene[type=" + name() + L"]";
 538         }
 539
 540         std::wstring name() const
 541         {
 542                 return producer_name_;
 543         }
 544
 545         boost::property_tree::wptree info() const
 546         {
 547                 boost::property_tree::wptree info;
 548                 info.add(L"type", L"scene");
 549                 info.add(L"producer-name", name());
 550                 info.add(L"frame-number", frame_number_.get());
 551                 info.add(L"timeline-frame-number", timeline_frame_number_.get());
 552
 553                 for (auto& var : variables_)
 554                 {
 555                         boost::property_tree::wptree variable_info;
 556
 557                         variable_info.add(L"name", var.first);
 558                         variable_info.add(L"public", var.second->is_public());
 559                         variable_info.add(L"value", var.second->to_string());
 560
 561                         info.add_child(L"variables.variable", variable_info);
 562                 }
 563
 564                 for (auto& layer : layers_)
 565                 {
 566                         boost::property_tree::wptree layer_info;
 567
 568                         layer_info.add(L"name", layer.name.get());
 569                         layer_info.add_child(L"producer", layer.producer.get()->info());
 570                         layer_info.add(L"x", layer.position.x.get());
 571                         layer_info.add(L"y", layer.position.y.get());
 572                         layer_info.add(L"width", layer.producer.get()->pixel_constraints().width.get());
 573                         layer_info.add(L"height", layer.producer.get()->pixel_constraints().height.get());
 574
 575                         info.add_child(L"layers.layer", layer_info);
 576                 }
 577
 578                 return info;
 579         }
 580
 581         monitor::subject& monitor_output()
 582         {
 583                 return monitor_subject_;
 584         }
 585 };
 586
 587 scene_producer::scene_producer(std::wstring producer_name, int width, int height, const video_format_desc& format_desc)
 588         : impl_(new impl(std::move(producer_name), width, height, format_desc))
 589 {
 590 }
 591
 592 scene_producer::~scene_producer()
 593 {
 594 }
 595
 596 layer& scene_producer::create_layer(
 597                 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
 598 {
 599         return impl_->create_layer(producer, x, y, name);
 600 }
 601
 602 layer& scene_producer::create_layer(
 603                 const spl::shared_ptr<frame_producer>& producer, const std::wstring& name)
 604 {
 605         return impl_->create_layer(producer, 0, 0, name);
 606 }
 607
 608 void scene_producer::reverse_layers() {
 609         impl_->reverse_layers();
 610 }
 611
 612 binding<int64_t> scene_producer::timeline_frame()
 613 {
 614         return impl_->timeline_frame();
 615 }
 616
 617 draw_frame scene_producer::receive_impl()
 618 {
 619         return impl_->render_frame();
 620 }
 621
 622 constraints& scene_producer::pixel_constraints() { return impl_->pixel_constraints_; }
 623
 624 void scene_producer::on_interaction(const interaction_event::ptr& event)
 625 {
 626         impl_->on_interaction(event);
 627 }
 628
 629 bool scene_producer::collides(double x, double y) const
 630 {
 631         return impl_->collides(x, y);
 632 }
 633
 634 std::wstring scene_producer::print() const
 635 {
 636         return impl_->print();
 637 }
 638
 639 std::wstring scene_producer::name() const
 640 {
 641         return impl_->name();
 642 }
 643
 644 boost::property_tree::wptree scene_producer::info() const
 645 {
 646         return impl_->info();
 647 }
 648
 649 std::future<std::wstring> scene_producer::call(const std::vector<std::wstring>& params)
 650 {
 651         return impl_->call(params);
 652 }
 653
 654 monitor::subject& scene_producer::monitor_output()
 655 {
 656         return impl_->monitor_output();
 657 }
 658
 659 void scene_producer::store_keyframe(void* timeline_identity, const keyframe& k)
 660 {
 661         impl_->store_keyframe(timeline_identity, k);
 662 }
 663
 664 void scene_producer::store_variable(
 665                 const std::wstring& name, const std::shared_ptr<core::variable>& var)
 666 {
 667         impl_->store_variable(name, var);
 668 }
 669
 670 void scene_producer::add_mark(int64_t frame, mark_action action, const std::wstring& label)
 671 {
 672         impl_->add_mark(frame, action, label);
 673 }
 674
 675 core::variable& scene_producer::get_variable(const std::wstring& name)
 676 {
 677         return impl_->get_variable(name);
 678 }
 679
 680 const std::vector<std::wstring>& scene_producer::get_variables() const
 681 {
 682         return impl_->get_variables();
 683 }
 684
 685 }}}