git.sesse.net Git - casparcg/blob - modules/decklink/producer/decklink_producer.cpp

   1 /*\r
   2 * Copyright 2013 Sveriges Television AB http://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 "decklink_producer.h"\r
  25 \r
  26 #include "../interop/DeckLinkAPI_h.h"\r
  27 #include "../util/util.h"\r
  28 #include "../util/decklink_allocator.h"\r
  29 \r
  30 #include "../../ffmpeg/producer/filter/filter.h"\r
  31 #include "../../ffmpeg/producer/util/util.h"\r
  32 #include "../../ffmpeg/producer/muxer/frame_muxer.h"\r
  33 #include "../../ffmpeg/producer/muxer/display_mode.h"\r
  34 \r
  35 #include <common/concurrency/com_context.h>\r
  36 #include <common/diagnostics/graph.h>\r
  37 #include <common/exception/exceptions.h>\r
  38 #include <common/exception/win32_exception.h>\r
  39 #include <common/log/log.h>\r
  40 #include <common/memory/memclr.h>\r
  41 \r
  42 #include <core/parameters/parameters.h>\r
  43 #include <core/monitor/monitor.h>\r
  44 #include <core/mixer/write_frame.h>\r
  45 #include <core/mixer/audio/audio_util.h>\r
  46 #include <core/producer/frame/frame_transform.h>\r
  47 #include <core/producer/frame/frame_factory.h>\r
  48 \r
  49 #include <tbb/concurrent_queue.h>\r
  50 \r
  51 #include <boost/algorithm/string.hpp>\r
  52 #include <boost/foreach.hpp>\r
  53 #include <boost/property_tree/ptree.hpp>\r
  54 #include <boost/timer.hpp>\r
  55 \r
  56 #if defined(_MSC_VER)\r
  57 #pragma warning (push)\r
  58 #pragma warning (disable : 4244)\r
  59 #endif\r
  60 extern "C" \r
  61 {\r
  62         #define __STDC_CONSTANT_MACROS\r
  63         #define __STDC_LIMIT_MACROS\r
  64         #include <libavcodec/avcodec.h>\r
  65 }\r
  66 #if defined(_MSC_VER)\r
  67 #pragma warning (pop)\r
  68 #endif\r
  69 \r
  70 #pragma warning(push)\r
  71 #pragma warning(disable : 4996)\r
  72 \r
  73         #include <atlbase.h>\r
  74 \r
  75         #include <atlcom.h>\r
  76         #include <atlhost.h>\r
  77 \r
  78 #pragma warning(push)\r
  79 \r
  80 #include <functional>\r
  81 \r
  82 namespace caspar { namespace decklink {\r
  83                 \r
  84 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback\r
  85 {       \r
  86         core::monitor::subject                                                                          monitor_subject_;\r
  87         safe_ptr<diagnostics::graph>                                                            graph_;\r
  88         boost::timer                                                                                            tick_timer_;\r
  89         boost::timer                                                                                            frame_timer_;\r
  90 \r
  91         std::unique_ptr<thread_safe_decklink_allocator>                         allocator_;\r
  92         CComPtr<IDeckLink>                                                                                      decklink_;\r
  93         CComQIPtr<IDeckLinkInput>                                                                       input_;\r
  94         CComQIPtr<IDeckLinkAttributes >                                                         attributes_;\r
  95         \r
  96         const std::wstring                                                                                      model_name_;\r
  97         const size_t                                                                                            device_index_;\r
  98         const std::wstring                                                                                      filter_;\r
  99         \r
 100         core::video_format_desc                                                                         format_desc_;\r
 101         std::vector<size_t>                                                                                     audio_cadence_;\r
 102         boost::circular_buffer<size_t>                                                          sync_buffer_;\r
 103         ffmpeg::frame_muxer                                                                                     muxer_;\r
 104                         \r
 105         tbb::atomic<int>                                                                                        hints_;\r
 106         safe_ptr<core::frame_factory>                                                           frame_factory_;\r
 107 \r
 108         tbb::concurrent_bounded_queue<safe_ptr<core::basic_frame>>      frame_buffer_;\r
 109 \r
 110         std::exception_ptr                                                                                      exception_;     \r
 111         int                                                                                                                     num_input_channels_;\r
 112         core::channel_layout                                                                            audio_channel_layout_;\r
 113 \r
 114 public:\r
 115         decklink_producer(\r
 116                         const core::video_format_desc& format_desc,\r
 117                         const core::channel_layout& audio_channel_layout,\r
 118                         size_t device_index,\r
 119                         const safe_ptr<core::frame_factory>& frame_factory,\r
 120                         const std::wstring& filter,\r
 121                         std::size_t buffer_depth)\r
 122                 : decklink_(get_device(device_index))\r
 123                 , input_(decklink_)\r
 124                 , attributes_(decklink_)\r
 125                 , model_name_(get_model_name(decklink_))\r
 126                 , device_index_(device_index)\r
 127                 , filter_(filter)\r
 128                 , format_desc_(format_desc)\r
 129                 , audio_cadence_(format_desc.audio_cadence)\r
 130                 , muxer_(format_desc.fps, frame_factory, false, audio_channel_layout, filter)\r
 131                 , sync_buffer_(format_desc.audio_cadence.size())\r
 132                 , frame_factory_(frame_factory)\r
 133                 , audio_channel_layout_(audio_channel_layout)\r
 134         {               \r
 135                 hints_ = 0;\r
 136                 frame_buffer_.set_capacity(buffer_depth);\r
 137 \r
 138                 if (audio_channel_layout.num_channels <= 2)\r
 139                         num_input_channels_ = 2;\r
 140                 else if (audio_channel_layout.num_channels <= 8)\r
 141                         num_input_channels_ = 8;\r
 142                 else\r
 143                         num_input_channels_ = 16;\r
 144                 \r
 145                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 146                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 147                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 148                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 149                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 150                 graph_->set_text(print());\r
 151                 diagnostics::register_graph(graph_);\r
 152                 \r
 153                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 154                 \r
 155                 allocator_.reset(new thread_safe_decklink_allocator(print()));\r
 156 \r
 157                 if(FAILED(input_->SetVideoInputFrameMemoryAllocator(allocator_.get()))) \r
 158                         BOOST_THROW_EXCEPTION(caspar_exception()\r
 159                                                                         << msg_info(narrow(print()) + " Could not enable use of custom allocator.")\r
 160                                                                         << boost::errinfo_api_function("SetVideoInputFrameMemoryAllocator"));\r
 161 \r
 162                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 163                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, bmdVideoInputFlagDefault))) \r
 164                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 165                                                                         << msg_info(narrow(print()) + " Could not enable video input.")\r
 166                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 167 \r
 168                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, num_input_channels_))) \r
 169                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 170                                                                         << msg_info(narrow(print()) + " Could not enable audio input.")\r
 171                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 172                         \r
 173                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 174                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 175                                                                         << msg_info(narrow(print()) + " Failed to set input callback.")\r
 176                                                                         << boost::errinfo_api_function("SetCallback"));\r
 177                         \r
 178                 if(FAILED(input_->StartStreams()))\r
 179                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 180                                                                         << msg_info(narrow(print()) + " Failed to start input stream.")\r
 181                                                                         << boost::errinfo_api_function("StartStreams"));\r
 182         }\r
 183 \r
 184         ~decklink_producer()\r
 185         {\r
 186                 if(input_ != nullptr) \r
 187                 {\r
 188                         input_->StopStreams();\r
 189                         input_->DisableVideoInput();\r
 190                 }\r
 191         }\r
 192 \r
 193         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 194         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 195         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 196                 \r
 197         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 198         {\r
 199                 return S_OK;\r
 200         }\r
 201 \r
 202         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 203         {       \r
 204                 win32_exception::ensure_handler_installed_for_thread("decklink-VideoInputFrameArrived");\r
 205                 if(!video)\r
 206                         return S_OK;\r
 207 \r
 208                 try\r
 209                 {\r
 210                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 211                         tick_timer_.restart();\r
 212 \r
 213                         frame_timer_.restart();\r
 214 \r
 215                         // PUSH\r
 216 \r
 217                         void* bytes = nullptr;\r
 218                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 219                                 return S_OK;\r
 220                         \r
 221                         safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 222                         avcodec_get_frame_defaults(av_frame.get());\r
 223                                                 \r
 224                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 225                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 226                         av_frame->format                        = PIX_FMT_UYVY422;\r
 227                         av_frame->width                         = video->GetWidth();\r
 228                         av_frame->height                        = video->GetHeight();\r
 229                         av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 230                         av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 231                                 \r
 232                         std::shared_ptr<core::audio_buffer> audio_buffer;\r
 233 \r
 234                         // It is assumed that audio is always equal or ahead of video.\r
 235                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)) && bytes)\r
 236                         {\r
 237                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 238                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 239 \r
 240                                 if (num_input_channels_ == audio_channel_layout_.num_channels)\r
 241                                 {\r
 242                                         audio_buffer = std::make_shared<core::audio_buffer>(\r
 243                                                         audio_data, \r
 244                                                         audio_data + sample_frame_count * num_input_channels_);\r
 245                                 }\r
 246                                 else\r
 247                                 {\r
 248                                         audio_buffer = std::make_shared<core::audio_buffer>();\r
 249                                         audio_buffer->resize(sample_frame_count * audio_channel_layout_.num_channels, 0);\r
 250                                         auto src_view = core::make_multichannel_view<int32_t>(\r
 251                                                         audio_data, \r
 252                                                         audio_data + sample_frame_count * num_input_channels_, \r
 253                                                         audio_channel_layout_, \r
 254                                                         num_input_channels_);\r
 255                                         auto dst_view = core::make_multichannel_view<int32_t>(\r
 256                                                         audio_buffer->begin(),\r
 257                                                         audio_buffer->end(),\r
 258                                                         audio_channel_layout_);\r
 259 \r
 260                                         core::rearrange(src_view, dst_view);\r
 261                                 }\r
 262                         }\r
 263                         else                    \r
 264                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_cadence_.front() * audio_channel_layout_.num_channels, 0);\r
 265                         \r
 266                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)\r
 267                         // This cadence fills the audio mixer most optimally.\r
 268 \r
 269                         sync_buffer_.push_back(audio_buffer->size() / audio_channel_layout_.num_channels);              \r
 270                         if(!boost::range::equal(sync_buffer_, audio_cadence_))\r
 271                         {\r
 272                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";\r
 273                                 return S_OK;\r
 274                         }\r
 275 \r
 276                         muxer_.push(audio_buffer);\r
 277                         muxer_.push(av_frame, hints_);  \r
 278                                                                                         \r
 279                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);\r
 280                         \r
 281                         // POLL\r
 282                         \r
 283                         for(auto frame = muxer_.poll(); frame; frame = muxer_.poll())\r
 284                         {\r
 285                                 if(!frame_buffer_.try_push(make_safe_ptr(frame)))\r
 286                                 {\r
 287                                         auto dummy = core::basic_frame::empty();\r
 288                                         frame_buffer_.try_pop(dummy);\r
 289 \r
 290                                         frame_buffer_.try_push(make_safe_ptr(frame));\r
 291 \r
 292                                         graph_->set_tag("dropped-frame");\r
 293                                 }\r
 294                         }\r
 295 \r
 296                         graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 297 \r
 298                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 299                 }\r
 300                 catch(...)\r
 301                 {\r
 302                         exception_ = std::current_exception();\r
 303                         return E_FAIL;\r
 304                 }\r
 305 \r
 306                 return S_OK;\r
 307         }\r
 308         \r
 309         safe_ptr<core::basic_frame> get_frame(int hints)\r
 310         {\r
 311                 if(exception_ != nullptr)\r
 312                         std::rethrow_exception(exception_);\r
 313 \r
 314                 hints_ = hints;\r
 315 \r
 316                 safe_ptr<core::basic_frame> frame = core::basic_frame::late();\r
 317                 if(!frame_buffer_.try_pop(frame))\r
 318                         graph_->set_tag("late-frame");\r
 319                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 320                 return frame;\r
 321         }\r
 322         \r
 323         std::wstring print() const\r
 324         {\r
 325                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + format_desc_.name + L"]";\r
 326         }\r
 327 \r
 328         core::monitor::source& monitor_output()\r
 329         {\r
 330                 return monitor_subject_;\r
 331         }\r
 332 };\r
 333         \r
 334 class decklink_producer_proxy : public core::frame_producer\r
 335 {               \r
 336         safe_ptr<core::basic_frame>             last_frame_;\r
 337         com_context<decklink_producer>  context_;\r
 338         const uint32_t                                  length_;\r
 339 public:\r
 340 \r
 341         explicit decklink_producer_proxy(\r
 342                         const safe_ptr<core::frame_factory>& frame_factory,\r
 343                         const core::video_format_desc& format_desc,\r
 344                         const core::channel_layout& audio_channel_layout,\r
 345                         size_t device_index,\r
 346                         const std::wstring& filter_str,\r
 347                         uint32_t length,\r
 348                         std::size_t buffer_depth)\r
 349                 : context_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 350                 , last_frame_(core::basic_frame::empty())\r
 351                 , length_(length)\r
 352         {\r
 353                 context_.reset([&]{return new decklink_producer(format_desc, audio_channel_layout, device_index, frame_factory, filter_str, buffer_depth);}); \r
 354         }\r
 355         \r
 356         // frame_producer\r
 357                                 \r
 358         virtual safe_ptr<core::basic_frame> receive(\r
 359                         int hints) override\r
 360         {\r
 361                 auto frame = context_->get_frame(hints);\r
 362                 if(frame != core::basic_frame::late())\r
 363                         last_frame_ = frame;\r
 364                 return frame;\r
 365         }\r
 366 \r
 367         virtual safe_ptr<core::basic_frame> last_frame() const override\r
 368         {\r
 369                 return disable_audio(last_frame_);\r
 370         }\r
 371         \r
 372         virtual uint32_t nb_frames() const override\r
 373         {\r
 374                 return length_;\r
 375         }\r
 376         \r
 377         std::wstring print() const override\r
 378         {\r
 379                 return context_->print();\r
 380         }\r
 381 \r
 382         virtual boost::property_tree::wptree info() const override\r
 383         {\r
 384                 boost::property_tree::wptree info;\r
 385                 info.add(L"type", L"decklink-producer");\r
 386                 return info;\r
 387         }\r
 388 \r
 389         core::monitor::source& monitor_output()\r
 390         {\r
 391                 return context_->monitor_output();\r
 392         }\r
 393 };\r
 394 \r
 395 safe_ptr<core::frame_producer> create_producer(\r
 396                 const safe_ptr<core::frame_factory>& frame_factory,\r
 397                 const core::parameters& params)\r
 398 {\r
 399         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 400                 return core::frame_producer::empty();\r
 401 \r
 402         auto device_index       = params.get(L"DEVICE", -1);\r
 403         if(device_index == -1)\r
 404                 device_index = boost::lexical_cast<int>(params.at(1));\r
 405         auto filter_str         = params.get(L"FILTER");        \r
 406         auto length                     = params.get(L"LENGTH", std::numeric_limits<uint32_t>::max());  \r
 407         auto buffer_depth       = params.get(L"BUFFER", 2);     \r
 408         auto format_desc        = core::video_format_desc::get(params.get(L"FORMAT", L"INVALID"));\r
 409         auto audio_layout               = core::create_custom_channel_layout(\r
 410                         params.get(L"CHANNEL_LAYOUT", L"STEREO"),\r
 411                         core::default_channel_layout_repository());\r
 412         \r
 413         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 414         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 415         \r
 416         if(format_desc.format == core::video_format::invalid)\r
 417                 format_desc = frame_factory->get_video_format_desc();\r
 418                         \r
 419         return create_producer_print_proxy(\r
 420                    create_producer_destroy_proxy(\r
 421                         make_safe<decklink_producer_proxy>(frame_factory, format_desc, audio_layout, device_index, filter_str, length, buffer_depth)));\r
 422 }\r
 423 \r
 424 }}