git.sesse.net Git - casparcg/blob - modules/decklink/producer/decklink_producer.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 "decklink_producer.h"\r
  25 \r
  26 #include "../interop/DeckLinkAPI_h.h"\r
  27 #include "../util/util.h"\r
  28 \r
  29 #include "../../ffmpeg/producer/filter/filter.h"\r
  30 #include "../../ffmpeg/producer/util/util.h"\r
  31 #include "../../ffmpeg/producer/muxer/frame_muxer.h"\r
  32 #include "../../ffmpeg/producer/muxer/display_mode.h"\r
  33 \r
  34 #include <common/executor.h>\r
  35 #include <common/diagnostics/graph.h>\r
  36 #include <common/except.h>\r
  37 #include <common/log.h>\r
  38 #include <common/param.h>\r
  39 \r
  40 #include <core/frame/frame.h>\r
  41 #include <core/frame/draw_frame.h>\r
  42 #include <core/frame/frame_transform.h>\r
  43 #include <core/frame/frame_factory.h>\r
  44 #include <core/monitor/monitor.h>\r
  45 #include <core/mixer/audio/audio_mixer.h>\r
  46 \r
  47 #include <tbb/concurrent_queue.h>\r
  48 \r
  49 #include <boost/algorithm/string.hpp>\r
  50 #include <boost/foreach.hpp>\r
  51 #include <boost/property_tree/ptree.hpp>\r
  52 #include <boost/timer.hpp>\r
  53 \r
  54 #if defined(_MSC_VER)\r
  55 #pragma warning (push)\r
  56 #pragma warning (disable : 4244)\r
  57 #endif\r
  58 extern "C" \r
  59 {\r
  60         #define __STDC_CONSTANT_MACROS\r
  61         #define __STDC_LIMIT_MACROS\r
  62         #include <libavcodec/avcodec.h>\r
  63 }\r
  64 #if defined(_MSC_VER)\r
  65 #pragma warning (pop)\r
  66 #endif\r
  67 \r
  68 #pragma warning(push)\r
  69 #pragma warning(disable : 4996)\r
  70 \r
  71         #include <atlbase.h>\r
  72 \r
  73         #include <atlcom.h>\r
  74         #include <atlhost.h>\r
  75 \r
  76 #pragma warning(push)\r
  77 \r
  78 #include <functional>\r
  79 \r
  80 namespace caspar { namespace decklink {\r
  81                 \r
  82 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback\r
  83 {       \r
  84         monitor::basic_subject                                                  event_subject_;\r
  85         spl::shared_ptr<diagnostics::graph>                             graph_;\r
  86         boost::timer                                                                    tick_timer_;\r
  87 \r
  88         CComPtr<IDeckLink>                                                              decklink_;\r
  89         CComQIPtr<IDeckLinkInput>                                               input_;\r
  90         CComQIPtr<IDeckLinkAttributes >                                 attributes_;\r
  91         \r
  92         const std::wstring                                                              model_name_;\r
  93         const int                                                                               device_index_;\r
  94         const std::wstring                                                              filter_;\r
  95         \r
  96         std::vector<int>                                                                audio_cadence_;\r
  97         boost::circular_buffer<size_t>                                  sync_buffer_;\r
  98         ffmpeg::frame_muxer                                                             muxer_;\r
  99                         \r
 100         spl::shared_ptr<core::frame_factory>                    frame_factory_;\r
 101         core::video_format_desc                                                 in_format_desc_;\r
 102         core::video_format_desc                                                 out_format_desc_;\r
 103 \r
 104         tbb::concurrent_bounded_queue<core::draw_frame> frame_buffer_;\r
 105 \r
 106         std::exception_ptr                                                              exception_;             \r
 107 \r
 108 public:\r
 109         decklink_producer(const core::video_format_desc& in_format_desc, \r
 110                                           int device_index, \r
 111                                           const spl::shared_ptr<core::frame_factory>& frame_factory, \r
 112                                           const core::video_format_desc& out_format_desc, \r
 113                                           const std::wstring& filter)\r
 114                 : decklink_(get_device(device_index))\r
 115                 , input_(decklink_)\r
 116                 , attributes_(decklink_)\r
 117                 , model_name_(get_model_name(decklink_))\r
 118                 , device_index_(device_index)\r
 119                 , filter_(filter)\r
 120                 , in_format_desc_(in_format_desc)\r
 121                 , out_format_desc_(out_format_desc)\r
 122                 , muxer_(in_format_desc.fps, frame_factory, out_format_desc, filter)\r
 123                 , audio_cadence_(out_format_desc.audio_cadence)\r
 124                 , sync_buffer_(out_format_desc.audio_cadence.size())\r
 125                 , frame_factory_(frame_factory)\r
 126         {       \r
 127                 frame_buffer_.set_capacity(2);\r
 128                 \r
 129                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 130                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 131                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 132                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 133                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 134                 graph_->set_text(print());\r
 135                 diagnostics::register_graph(graph_);\r
 136                 \r
 137                 auto display_mode = get_display_mode(input_, in_format_desc.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 138                 \r
 139                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 140                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 141                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 142                                                                         << msg_info(print() + L" Could not enable video input.")\r
 143                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 144 \r
 145                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, static_cast<int>(in_format_desc.audio_channels)))) \r
 146                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 147                                                                         << msg_info(print() + L" Could not enable audio input.")\r
 148                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 149                         \r
 150                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 151                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 152                                                                         << msg_info(print() + L" Failed to set input callback.")\r
 153                                                                         << boost::errinfo_api_function("SetCallback"));\r
 154                         \r
 155                 if(FAILED(input_->StartStreams()))\r
 156                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 157                                                                         << msg_info(print() + L" Failed to start input stream.")\r
 158                                                                         << boost::errinfo_api_function("StartStreams"));\r
 159 \r
 160                 CASPAR_LOG(info) << print() << L" Initialized";\r
 161         }\r
 162 \r
 163         ~decklink_producer()\r
 164         {\r
 165                 if(input_ != nullptr) \r
 166                 {\r
 167                         input_->StopStreams();\r
 168                         input_->DisableVideoInput();\r
 169                 }\r
 170         }\r
 171 \r
 172         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 173         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 174         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 175                 \r
 176         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 177         {\r
 178                 return S_OK;\r
 179         }\r
 180 \r
 181         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 182         {       \r
 183                 if(!video)\r
 184                         return S_OK;\r
 185 \r
 186                 try\r
 187                 {\r
 188                         graph_->set_value("tick-time", tick_timer_.elapsed()*out_format_desc_.fps*0.5);\r
 189                         tick_timer_.restart();\r
 190 \r
 191                         boost::timer frame_timer;       \r
 192 \r
 193                         // PUSH\r
 194 \r
 195                         void* bytes = nullptr;\r
 196                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 197                                 return S_OK;\r
 198                         \r
 199                         std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);      \r
 200                         avcodec_get_frame_defaults(av_frame.get());\r
 201                                                 \r
 202                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 203                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 204                         av_frame->format                        = PIX_FMT_UYVY422;\r
 205                         av_frame->width                         = video->GetWidth();\r
 206                         av_frame->height                        = video->GetHeight();\r
 207                         av_frame->interlaced_frame      = in_format_desc_.field_mode != core::field_mode::progressive;\r
 208                         av_frame->top_field_first       = in_format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 209                                 \r
 210                         event_subject_  << monitor::event("file/name")                          % model_name_\r
 211                                                         << monitor::event("file/path")                          % device_index_\r
 212                                                         << monitor::event("file/video/width")           % video->GetWidth()\r
 213                                                         << monitor::event("file/video/height")          % video->GetHeight()\r
 214                                                         << monitor::event("file/video/field")           % u8(!av_frame->interlaced_frame ? "progressive" : (av_frame->top_field_first ? "upper" : "lower"))\r
 215                                                         << monitor::event("file/audio/sample-rate")     % 48000\r
 216                                                         << monitor::event("file/audio/channels")        % 2\r
 217                                                         << monitor::event("file/audio/format")          % u8(av_get_sample_fmt_name(AV_SAMPLE_FMT_S32))\r
 218                                                         << monitor::event("file/fps")                           % in_format_desc_.fps;\r
 219 \r
 220                         std::shared_ptr<core::audio_buffer> audio_buffer;\r
 221 \r
 222                         // It is assumed that audio is always equal or ahead of video.\r
 223                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)) && bytes)\r
 224                         {\r
 225                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 226                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 227                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_data, audio_data + sample_frame_count*out_format_desc_.audio_channels);\r
 228                         }\r
 229                         else                    \r
 230                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_cadence_.front(), 0);\r
 231                         \r
 232                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)\r
 233                         // This cadence fills the audio mixer most optimally.\r
 234 \r
 235                         sync_buffer_.push_back(audio_buffer->size());           \r
 236                         if(!boost::range::equal(sync_buffer_, audio_cadence_))\r
 237                         {\r
 238                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";\r
 239                                 return S_OK;\r
 240                         }\r
 241                         \r
 242                         muxer_.push(av_frame);  \r
 243                         muxer_.push(audio_buffer);\r
 244                                                                                         \r
 245                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);\r
 246                         \r
 247                         // POLL\r
 248 \r
 249                         auto frame = core::draw_frame::late();\r
 250                         if(!muxer_.empty())\r
 251                         {\r
 252                                 frame = std::move(muxer_.front());\r
 253                                 muxer_.pop();\r
 254 \r
 255                                 if(!frame_buffer_.try_push(frame))\r
 256                                 {\r
 257                                         auto dummy = core::draw_frame::empty();\r
 258                                         frame_buffer_.try_pop(dummy);\r
 259                                         frame_buffer_.try_push(frame);\r
 260                                                 \r
 261                                         graph_->set_tag("dropped-frame");\r
 262                                 }\r
 263                         }\r
 264                         \r
 265                         graph_->set_value("frame-time", frame_timer.elapsed()*out_format_desc_.fps*0.5);        \r
 266                         event_subject_ << monitor::event("profiler/time") % frame_timer.elapsed() % out_format_desc_.fps;\r
 267 \r
 268                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 269                         event_subject_ << monitor::event("buffer") % frame_buffer_.size() % frame_buffer_.capacity();\r
 270                 }\r
 271                 catch(...)\r
 272                 {\r
 273                         exception_ = std::current_exception();\r
 274                         return E_FAIL;\r
 275                 }\r
 276 \r
 277                 return S_OK;\r
 278         }\r
 279         \r
 280         core::draw_frame get_frame()\r
 281         {\r
 282                 if(exception_ != nullptr)\r
 283                         std::rethrow_exception(exception_);\r
 284                 \r
 285                 core::draw_frame frame = core::draw_frame::late();\r
 286                 if(!frame_buffer_.try_pop(frame))\r
 287                         graph_->set_tag("late-frame");\r
 288                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 289                 return frame;\r
 290         }\r
 291         \r
 292         std::wstring print() const\r
 293         {\r
 294                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + in_format_desc_.name + L"]";\r
 295         }\r
 296 \r
 297         void subscribe(const monitor::observable::observer_ptr& o)\r
 298         {\r
 299                 event_subject_.subscribe(o);\r
 300         }\r
 301 \r
 302         void unsubscribe(const monitor::observable::observer_ptr& o)\r
 303         {\r
 304                 event_subject_.unsubscribe(o);\r
 305         }\r
 306 };\r
 307         \r
 308 class decklink_producer_proxy : public core::frame_producer_base\r
 309 {               \r
 310         std::unique_ptr<decklink_producer>      producer_;\r
 311         const uint32_t                                          length_;\r
 312         executor                                                        executor_;\r
 313 public:\r
 314         explicit decklink_producer_proxy(const core::video_format_desc& in_format_desc,\r
 315                                                                          const spl::shared_ptr<core::frame_factory>& frame_factory, \r
 316                                                                          const core::video_format_desc& out_format_desc, \r
 317                                                                          int device_index,\r
 318                                                                          const std::wstring& filter_str, uint32_t length)\r
 319                 : executor_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 320                 , length_(length)\r
 321         {\r
 322                 executor_.invoke([=]\r
 323                 {\r
 324                         CoInitialize(nullptr);\r
 325                         producer_.reset(new decklink_producer(in_format_desc, device_index, frame_factory, out_format_desc, filter_str));\r
 326                 });\r
 327         }\r
 328 \r
 329         ~decklink_producer_proxy()\r
 330         {               \r
 331                 executor_.invoke([=]\r
 332                 {\r
 333                         producer_.reset();\r
 334                         CoUninitialize();\r
 335                 });\r
 336         }\r
 337 \r
 338         void subscribe(const monitor::observable::observer_ptr& o) override\r
 339         {\r
 340                 producer_->subscribe(o);\r
 341         }\r
 342 \r
 343         void unsubscribe(const monitor::observable::observer_ptr& o) override\r
 344         {\r
 345                 producer_->unsubscribe(o);\r
 346         }\r
 347         \r
 348         // frame_producer\r
 349                                 \r
 350         core::draw_frame receive_impl() override\r
 351         {               \r
 352                 return producer_->get_frame();\r
 353         }\r
 354                         \r
 355         uint32_t nb_frames() const override\r
 356         {\r
 357                 return length_;\r
 358         }\r
 359         \r
 360         std::wstring print() const override\r
 361         {\r
 362                 return producer_->print();\r
 363         }\r
 364         \r
 365         std::wstring name() const override\r
 366         {\r
 367                 return L"decklink";\r
 368         }\r
 369 \r
 370         boost::property_tree::wptree info() const override\r
 371         {\r
 372                 boost::property_tree::wptree info;\r
 373                 info.add(L"type", L"decklink");\r
 374                 return info;\r
 375         }\r
 376 };\r
 377 \r
 378 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& out_format_desc, const std::vector<std::wstring>& params)\r
 379 {\r
 380         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 381                 return core::frame_producer::empty();\r
 382 \r
 383         auto device_index       = get_param(L"DEVICE", params, -1);\r
 384         if(device_index == -1)\r
 385                 device_index = boost::lexical_cast<int>(params.at(1));\r
 386         \r
 387         auto filter_str         = get_param(L"FILTER", params);         \r
 388         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());   \r
 389         auto in_format_desc = core::video_format_desc(get_param(L"FORMAT", params, L"INVALID"));\r
 390                 \r
 391         if(in_format_desc.format == core::video_format::invalid)\r
 392                 in_format_desc = out_format_desc;\r
 393                         \r
 394         return spl::make_shared<decklink_producer_proxy>(in_format_desc, frame_factory, out_format_desc, device_index, filter_str, length);\r
 395 }\r
 396 \r
 397 }}