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   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: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "stdafx.h"
  23
  24 #include "server.h"
  25 #include "included_modules.h"
  26
  27 #include <accelerator/accelerator.h>
  28
  29 #include <common/env.h>
  30 #include <common/except.h>
  31 #include <common/utf.h>
  32 #include <common/memory.h>
  33 #include <common/polling_filesystem_monitor.h>
  34
  35 #include <core/video_channel.h>
  36 #include <core/video_format.h>
  37 #include <core/producer/stage.h>
  38 #include <core/producer/frame_producer.h>
  39 #include <core/producer/scene/scene_producer.h>
  40 #include <core/producer/scene/xml_scene_producer.h>
  41 #include <core/producer/text/text_producer.h>
  42 #include <core/consumer/output.h>
  43 #include <core/thumbnail_generator.h>
  44 #include <core/producer/media_info/media_info.h>
  45 #include <core/producer/media_info/media_info_repository.h>
  46 #include <core/producer/media_info/in_memory_media_info_repository.h>
  47 #include <core/producer/cg_proxy.h>
  48 #include <core/diagnostics/subject_diagnostics.h>
  49 #include <core/diagnostics/call_context.h>
  50 #include <core/diagnostics/osd_graph.h>
  51 #include <core/system_info_provider.h>
  52 #include <core/help/help_repository.h>
  53
  54 #include <modules/image/consumer/image_consumer.h>
  55
  56 #include <protocol/amcp/AMCPProtocolStrategy.h>
  57 #include <protocol/amcp/amcp_command_repository.h>
  58 #include <protocol/amcp/AMCPCommandsImpl.h>
  59 #include <protocol/cii/CIIProtocolStrategy.h>
  60 #include <protocol/clk/CLKProtocolStrategy.h>
  61 #include <protocol/util/AsyncEventServer.h>
  62 #include <protocol/util/strategy_adapters.h>
  63 #include <protocol/osc/client.h>
  64
  65 #include <boost/algorithm/string.hpp>
  66 #include <boost/thread.hpp>
  67 #include <boost/lexical_cast.hpp>
  68 #include <boost/property_tree/ptree.hpp>
  69 #include <boost/property_tree/xml_parser.hpp>
  70 #include <boost/asio.hpp>
  71
  72 #include <tbb/atomic.h>
  73
  74 #include <future>
  75
  76 namespace caspar {
  77
  78 using namespace core;
  79 using namespace protocol;
  80
  81 std::shared_ptr<boost::asio::io_service> create_running_io_service()
  82 {
  83         auto service = std::make_shared<boost::asio::io_service>();
  84         // To keep the io_service::run() running although no pending async
  85         // operations are posted.
  86         auto work = std::make_shared<boost::asio::io_service::work>(*service);
  87         auto weak_work = std::weak_ptr<boost::asio::io_service::work>(work);
  88         auto thread = std::make_shared<boost::thread>([service, weak_work]
  89         {
  90                 ensure_gpf_handler_installed_for_thread("asio-thread");
  91
  92                 while (weak_work.lock())
  93                 {
  94                         try
  95                         {
  96                                 service->run();
  97                         }
  98                         catch (...)
  99                         {
 100                                 CASPAR_LOG_CURRENT_EXCEPTION();
 101                         }
 102                 }
 103         });
 104
 105         return std::shared_ptr<boost::asio::io_service>(
 106                         service.get(),
 107                         [service, work, thread](void*) mutable
 108                         {
 109                                 work.reset();
 110                                 service->stop();
 111                                 if (thread->get_id() != boost::this_thread::get_id())
 112                                         thread->join();
 113                                 else
 114                                         thread->detach();
 115                         });
 116 }
 117
 118 struct server::impl : boost::noncopyable
 119 {
 120         std::shared_ptr<boost::asio::io_service>                        io_service_                                             = create_running_io_service();
 121         spl::shared_ptr<monitor::subject>                                       monitor_subject_;
 122         spl::shared_ptr<monitor::subject>                                       diag_subject_                                   = core::diagnostics::get_or_create_subject();
 123         accelerator::accelerator                                                        accelerator_;
 124         spl::shared_ptr<help_repository>                                        help_repo_;
 125         std::shared_ptr<amcp::amcp_command_repository>          amcp_command_repo_;
 126         std::vector<spl::shared_ptr<IO::AsyncEventServer>>      async_servers_;
 127         std::shared_ptr<IO::AsyncEventServer>                           primary_amcp_server_;
 128         std::shared_ptr<osc::client>                                            osc_client_                                             = std::make_shared<osc::client>(io_service_);
 129         std::vector<std::shared_ptr<void>>                                      predefined_osc_subscriptions_;
 130         std::vector<spl::shared_ptr<video_channel>>                     channels_;
 131         spl::shared_ptr<media_info_repository>                          media_info_repo_;
 132         boost::thread                                                                           initial_media_info_thread_;
 133         spl::shared_ptr<system_info_provider_repository>        system_info_provider_repo_;
 134         spl::shared_ptr<core::cg_producer_registry>                     cg_registry_;
 135         spl::shared_ptr<core::frame_producer_registry>          producer_registry_;
 136         spl::shared_ptr<core::frame_consumer_registry>          consumer_registry_;
 137         tbb::atomic<bool>                                                                       running_;
 138         std::shared_ptr<thumbnail_generator>                            thumbnail_generator_;
 139         std::promise<bool>&                                                                     shutdown_server_now_;
 140
 141         explicit impl(std::promise<bool>& shutdown_server_now)
 142                 : accelerator_(env::properties().get(L"configuration.accelerator", L"auto"))
 143                 , media_info_repo_(create_in_memory_media_info_repository())
 144                 , producer_registry_(spl::make_shared<core::frame_producer_registry>(help_repo_))
 145                 , consumer_registry_(spl::make_shared<core::frame_consumer_registry>(help_repo_))
 146                 , shutdown_server_now_(shutdown_server_now)
 147         {
 148                 running_ = false;
 149                 core::diagnostics::osd::register_sink();
 150                 diag_subject_->attach_parent(monitor_subject_);
 151
 152                 module_dependencies dependencies(
 153                                 system_info_provider_repo_,
 154                                 cg_registry_,
 155                                 media_info_repo_,
 156                                 producer_registry_,
 157                                 consumer_registry_);
 158
 159                 initialize_modules(dependencies);
 160                 core::text::init(dependencies);
 161                 core::scene::init(dependencies);
 162         }
 163
 164         void start()
 165         {
 166                 running_ = true;
 167
 168                 setup_channels(env::properties());
 169                 CASPAR_LOG(info) << L"Initialized channels.";
 170
 171                 setup_thumbnail_generation(env::properties());
 172                 CASPAR_LOG(info) << L"Initialized thumbnail generator.";
 173
 174                 setup_controllers(env::properties());
 175                 CASPAR_LOG(info) << L"Initialized controllers.";
 176
 177                 setup_osc(env::properties());
 178                 CASPAR_LOG(info) << L"Initialized osc.";
 179
 180                 start_initial_media_info_scan();
 181                 CASPAR_LOG(info) << L"Started initial media information retrieval.";
 182         }
 183
 184         ~impl()
 185         {
 186                 if (running_)
 187                 {
 188                         running_ = false;
 189                         initial_media_info_thread_.join();
 190                 }
 191
 192                 std::weak_ptr<boost::asio::io_service> weak_io_service = io_service_;
 193                 io_service_.reset();
 194                 osc_client_.reset();
 195                 thumbnail_generator_.reset();
 196                 amcp_command_repo_.reset();
 197                 primary_amcp_server_.reset();
 198                 async_servers_.clear();
 199                 destroy_producers_synchronously();
 200                 destroy_consumers_synchronously();
 201                 channels_.clear();
 202
 203                 while (weak_io_service.lock())
 204                         boost::this_thread::sleep_for(boost::chrono::milliseconds(100));
 205
 206                 uninitialize_modules();
 207                 core::diagnostics::osd::shutdown();
 208         }
 209
 210         void setup_channels(const boost::property_tree::wptree& pt)
 211         {
 212                 using boost::property_tree::wptree;
 213                 for (auto& xml_channel : pt.get_child(L"configuration.channels"))
 214                 {
 215                         auto format_desc = video_format_desc(xml_channel.second.get(L"video-mode", L"PAL"));
 216                         if(format_desc.format == video_format::invalid)
 217                                 CASPAR_THROW_EXCEPTION(caspar_exception() << msg_info("Invalid video-mode."));
 218
 219                         auto channel = spl::make_shared<video_channel>(static_cast<int>(channels_.size()+1), format_desc, accelerator_.create_image_mixer());
 220
 221                         core::diagnostics::scoped_call_context save;
 222                         core::diagnostics::call_context::for_thread().video_channel = channel->index();
 223
 224                         for (auto& xml_consumer : xml_channel.second.get_child(L"consumers"))
 225                         {
 226                                 try
 227                                 {
 228                                         auto name = xml_consumer.first;
 229
 230                                         if (name != L"<xmlcomment>")
 231                                                 channel->output().add(consumer_registry_->create_consumer(name, xml_consumer.second, &channel->stage()));
 232                                 }
 233                                 catch(...)
 234                                 {
 235                                         CASPAR_LOG_CURRENT_EXCEPTION();
 236                                 }
 237                         }
 238
 239                     channel->monitor_output().attach_parent(monitor_subject_);
 240                         channels_.push_back(channel);
 241                 }
 242
 243                 // Dummy diagnostics channel
 244                 if (env::properties().get(L"configuration.channel-grid", false))
 245                 {
 246                         channels_.push_back(spl::make_shared<video_channel>(static_cast<int>(channels_.size() + 1), core::video_format_desc(core::video_format::x576p2500), accelerator_.create_image_mixer()));
 247                         channels_.back()->monitor_output().attach_parent(monitor_subject_);
 248                 }
 249         }
 250
 251         void setup_osc(const boost::property_tree::wptree& pt)
 252         {
 253                 using boost::property_tree::wptree;
 254                 using namespace boost::asio::ip;
 255
 256                 monitor_subject_->attach_parent(osc_client_->sink());
 257
 258                 auto default_port =
 259                                 pt.get<unsigned short>(L"configuration.osc.default-port", 6250);
 260                 auto predefined_clients =
 261                                 pt.get_child_optional(L"configuration.osc.predefined-clients");
 262
 263                 if (predefined_clients)
 264                 {
 265                         for (auto& predefined_client : *predefined_clients)
 266                         {
 267                                 const auto address =
 268                                                 predefined_client.second.get<std::wstring>(L"address");
 269                                 const auto port =
 270                                                 predefined_client.second.get<unsigned short>(L"port");
 271                                 predefined_osc_subscriptions_.push_back(
 272                                                 osc_client_->get_subscription_token(udp::endpoint(
 273                                                                 address_v4::from_string(u8(address)),
 274                                                                 port)));
 275                         }
 276                 }
 277
 278                 if (primary_amcp_server_)
 279                         primary_amcp_server_->add_client_lifecycle_object_factory(
 280                                         [=] (const std::string& ipv4_address)
 281                                                         -> std::pair<std::wstring, std::shared_ptr<void>>
 282                                         {
 283                                                 using namespace boost::asio::ip;
 284
 285                                                 return std::make_pair(
 286                                                                 std::wstring(L"osc_subscribe"),
 287                                                                 osc_client_->get_subscription_token(
 288                                                                                 udp::endpoint(
 289                                                                                                 address_v4::from_string(
 290                                                                                                                 ipv4_address),
 291                                                                                                 default_port)));
 292                                         });
 293         }
 294
 295         void setup_thumbnail_generation(const boost::property_tree::wptree& pt)
 296         {
 297                 if (!pt.get(L"configuration.thumbnails.generate-thumbnails", true))
 298                         return;
 299
 300                 auto scan_interval_millis = pt.get(L"configuration.thumbnails.scan-interval-millis", 5000);
 301
 302                 polling_filesystem_monitor_factory monitor_factory(io_service_, scan_interval_millis);
 303                 thumbnail_generator_.reset(new thumbnail_generator(
 304                         monitor_factory,
 305                         env::media_folder(),
 306                         env::thumbnails_folder(),
 307                         pt.get(L"configuration.thumbnails.width", 256),
 308                         pt.get(L"configuration.thumbnails.height", 144),
 309                         core::video_format_desc(pt.get(L"configuration.thumbnails.video-mode", L"720p2500")),
 310                         accelerator_.create_image_mixer(),
 311                         pt.get(L"configuration.thumbnails.generate-delay-millis", 2000),
 312                         &image::write_cropped_png,
 313                         media_info_repo_,
 314                         producer_registry_,
 315                         pt.get(L"configuration.thumbnails.mipmap", true)));
 316
 317                 CASPAR_LOG(info) << L"Initialized thumbnail generator.";
 318         }
 319
 320         void setup_controllers(const boost::property_tree::wptree& pt)
 321         {
 322                 amcp_command_repo_ = spl::make_shared<amcp::amcp_command_repository>(
 323                                 channels_,
 324                                 thumbnail_generator_,
 325                                 media_info_repo_,
 326                                 system_info_provider_repo_,
 327                                 cg_registry_,
 328                                 help_repo_,
 329                                 producer_registry_,
 330                                 consumer_registry_,
 331                                 shutdown_server_now_);
 332                 amcp::register_commands(*amcp_command_repo_);
 333
 334                 using boost::property_tree::wptree;
 335                 for (auto& xml_controller : pt.get_child(L"configuration.controllers"))
 336                 {
 337                         try
 338                         {
 339                                 auto name = xml_controller.first;
 340                                 auto protocol = xml_controller.second.get<std::wstring>(L"protocol");
 341
 342                                 if(name == L"tcp")
 343                                 {
 344                                         unsigned int port = xml_controller.second.get(L"port", 5250);
 345                                         auto asyncbootstrapper = spl::make_shared<IO::AsyncEventServer>(
 346                                                         io_service_,
 347                                                         create_protocol(protocol, L"TCP Port " + boost::lexical_cast<std::wstring>(port)),
 348                                                         port);
 349                                         async_servers_.push_back(asyncbootstrapper);
 350
 351                                         if (!primary_amcp_server_ && boost::iequals(protocol, L"AMCP"))
 352                                                 primary_amcp_server_ = asyncbootstrapper;
 353                                 }
 354                                 else
 355                                         CASPAR_LOG(warning) << "Invalid controller: " << name;
 356                         }
 357                         catch(...)
 358                         {
 359                                 CASPAR_LOG_CURRENT_EXCEPTION();
 360                         }
 361                 }
 362         }
 363
 364         IO::protocol_strategy_factory<char>::ptr create_protocol(const std::wstring& name, const std::wstring& port_description) const
 365         {
 366                 using namespace IO;
 367
 368                 if(boost::iequals(name, L"AMCP"))
 369                         return wrap_legacy_protocol("\r\n", spl::make_shared<amcp::AMCPProtocolStrategy>(port_description, spl::make_shared_ptr(amcp_command_repo_)));
 370                 else if(boost::iequals(name, L"CII"))
 371                         return wrap_legacy_protocol("\r\n", spl::make_shared<cii::CIIProtocolStrategy>(channels_, cg_registry_, producer_registry_));
 372                 else if(boost::iequals(name, L"CLOCK"))
 373                         return spl::make_shared<to_unicode_adapter_factory>(
 374                                         "ISO-8859-1",
 375                                         spl::make_shared<CLK::clk_protocol_strategy_factory>(channels_, cg_registry_, producer_registry_));
 376
 377                 CASPAR_THROW_EXCEPTION(caspar_exception() << arg_name_info(L"name") << arg_value_info(name) << msg_info(L"Invalid protocol"));
 378         }
 379
 380         void start_initial_media_info_scan()
 381         {
 382                 initial_media_info_thread_ = boost::thread([this]
 383                 {
 384                         try
 385                         {
 386                                 ensure_gpf_handler_installed_for_thread("initial media scan");
 387
 388                                 for (boost::filesystem::wrecursive_directory_iterator iter(env::media_folder()), end; iter != end; ++iter)
 389                                 {
 390                                         if (running_)
 391                                         {
 392                                                 if (boost::filesystem::is_regular_file(iter->path()))
 393                                                         media_info_repo_->get(iter->path().wstring());
 394                                         }
 395                                         else
 396                                         {
 397                                                 CASPAR_LOG(info) << L"Initial media information retrieval aborted.";
 398                                                 return;
 399                                         }
 400                                 }
 401
 402                                 CASPAR_LOG(info) << L"Initial media information retrieval finished.";
 403                         }
 404                         catch (...)
 405                         {
 406                                 CASPAR_LOG_CURRENT_EXCEPTION();
 407                         }
 408                 });
 409         }
 410 };
 411
 412 server::server(std::promise<bool>& shutdown_server_now) : impl_(new impl(shutdown_server_now)){}
 413 void server::start() { impl_->start(); }
 414 spl::shared_ptr<core::system_info_provider_repository> server::get_system_info_provider_repo() const { return impl_->system_info_provider_repo_; }
 415 spl::shared_ptr<protocol::amcp::amcp_command_repository> server::get_amcp_command_repository() const { return spl::make_shared_ptr(impl_->amcp_command_repo_); }
 416 core::monitor::subject& server::monitor_output() { return *impl_->monitor_subject_; }
 417
 418 }