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/concurrency/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 \r
  45 #include <tbb/concurrent_queue.h>\r
  46 \r
  47 #include <boost/algorithm/string.hpp>\r
  48 #include <boost/foreach.hpp>\r
  49 #include <boost/property_tree/ptree.hpp>\r
  50 #include <boost/timer.hpp>\r
  51 \r
  52 #if defined(_MSC_VER)\r
  53 #pragma warning (push)\r
  54 #pragma warning (disable : 4244)\r
  55 #endif\r
  56 extern "C" \r
  57 {\r
  58         #define __STDC_CONSTANT_MACROS\r
  59         #define __STDC_LIMIT_MACROS\r
  60         #include <libavcodec/avcodec.h>\r
  61 }\r
  62 #if defined(_MSC_VER)\r
  63 #pragma warning (pop)\r
  64 #endif\r
  65 \r
  66 #pragma warning(push)\r
  67 #pragma warning(disable : 4996)\r
  68 \r
  69         #include <atlbase.h>\r
  70 \r
  71         #include <atlcom.h>\r
  72         #include <atlhost.h>\r
  73 \r
  74 #pragma warning(push)\r
  75 \r
  76 #include <functional>\r
  77 \r
  78 namespace caspar { namespace decklink {\r
  79                 \r
  80 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback\r
  81 {       \r
  82         spl::shared_ptr<diagnostics::graph>                             graph_;\r
  83         boost::timer                                                                    tick_timer_;\r
  84         boost::timer                                                                    frame_timer_;\r
  85 \r
  86         CComPtr<IDeckLink>                                                              decklink_;\r
  87         CComQIPtr<IDeckLinkInput>                                               input_;\r
  88         CComQIPtr<IDeckLinkAttributes >                                 attributes_;\r
  89         \r
  90         const std::wstring                                                              model_name_;\r
  91         const int                                                                               device_index_;\r
  92         const std::wstring                                                              filter_;\r
  93         \r
  94         std::vector<int>                                                                audio_cadence_;\r
  95         boost::circular_buffer<size_t>                                  sync_buffer_;\r
  96         ffmpeg::frame_muxer                                                             muxer_;\r
  97                         \r
  98         tbb::atomic<int>                                                                flags_;\r
  99         spl::shared_ptr<core::frame_factory>                    frame_factory_;\r
 100         core::video_format_desc                                                 in_format_desc_;\r
 101         core::video_format_desc                                                 out_format_desc_;\r
 102 \r
 103         tbb::concurrent_bounded_queue<core::draw_frame> frame_buffer_;\r
 104 \r
 105         std::exception_ptr                                                              exception_;             \r
 106 \r
 107 public:\r
 108         decklink_producer(const core::video_format_desc& in_format_desc, \r
 109                                           int device_index, \r
 110                                           const spl::shared_ptr<core::frame_factory>& frame_factory, \r
 111                                           const core::video_format_desc& out_format_desc, \r
 112                                           const std::wstring& filter)\r
 113                 : decklink_(get_device(device_index))\r
 114                 , input_(decklink_)\r
 115                 , attributes_(decklink_)\r
 116                 , model_name_(get_model_name(decklink_))\r
 117                 , device_index_(device_index)\r
 118                 , filter_(filter)\r
 119                 , in_format_desc_(in_format_desc)\r
 120                 , out_format_desc_(out_format_desc)\r
 121                 , muxer_(in_format_desc.fps, frame_factory, out_format_desc, filter)\r
 122                 , audio_cadence_(out_format_desc.audio_cadence)\r
 123                 , sync_buffer_(out_format_desc.audio_cadence.size())\r
 124                 , frame_factory_(frame_factory)\r
 125         {       \r
 126                 flags_ = 0;\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                         frame_timer_.restart();\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                         spl::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                         std::shared_ptr<core::audio_buffer> audio_buffer;\r
 211 \r
 212                         // It is assumed that audio is always equal or ahead of video.\r
 213                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)) && bytes)\r
 214                         {\r
 215                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 216                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 217                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_data, audio_data + sample_frame_count*out_format_desc_.audio_channels);\r
 218                         }\r
 219                         else                    \r
 220                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_cadence_.front(), 0);\r
 221                         \r
 222                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)\r
 223                         // This cadence fills the audio mixer most optimally.\r
 224 \r
 225                         sync_buffer_.push_back(audio_buffer->size());           \r
 226                         if(!boost::range::equal(sync_buffer_, audio_cadence_))\r
 227                         {\r
 228                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";\r
 229                                 return S_OK;\r
 230                         }\r
 231 \r
 232                         muxer_.push(audio_buffer);\r
 233                         muxer_.push(av_frame, flags_);  \r
 234                                                                                         \r
 235                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);\r
 236                         \r
 237                         // POLL\r
 238 \r
 239                         auto frame = core::draw_frame::late();\r
 240                         if(muxer_.try_pop(frame))\r
 241                         {\r
 242                                 if(!frame_buffer_.try_push(frame))\r
 243                                         graph_->set_tag("dropped-frame");\r
 244                         }\r
 245                         \r
 246                         graph_->set_value("frame-time", frame_timer_.elapsed()*out_format_desc_.fps*0.5);\r
 247 \r
 248                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 249                 }\r
 250                 catch(...)\r
 251                 {\r
 252                         exception_ = std::current_exception();\r
 253                         return E_FAIL;\r
 254                 }\r
 255 \r
 256                 return S_OK;\r
 257         }\r
 258         \r
 259         core::draw_frame get_frame(int flags)\r
 260         {\r
 261                 if(exception_ != nullptr)\r
 262                         std::rethrow_exception(exception_);\r
 263 \r
 264                 flags_ = flags;\r
 265 \r
 266                 core::draw_frame frame = core::draw_frame::late();\r
 267                 if(!frame_buffer_.try_pop(frame))\r
 268                         graph_->set_tag("late-frame");\r
 269                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 270                 return frame;\r
 271         }\r
 272         \r
 273         std::wstring print() const\r
 274         {\r
 275                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + in_format_desc_.name + L"]";\r
 276         }\r
 277 };\r
 278         \r
 279 class decklink_producer_proxy : public core::frame_producer\r
 280 {               \r
 281         std::unique_ptr<decklink_producer>      producer_;\r
 282         const uint32_t                                          length_;\r
 283         core::draw_frame                                        last_frame_;\r
 284         executor                                                        executor_;\r
 285 public:\r
 286         explicit decklink_producer_proxy(const core::video_format_desc& in_format_desc,\r
 287                                                                          const spl::shared_ptr<core::frame_factory>& frame_factory, \r
 288                                                                          const core::video_format_desc& out_format_desc, \r
 289                                                                          int device_index,\r
 290                                                                          const std::wstring& filter_str, uint32_t length)\r
 291                 : executor_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 292                 , length_(length)\r
 293                 , last_frame_(core::draw_frame::empty())\r
 294         {\r
 295                 executor_.invoke([=]\r
 296                 {\r
 297                         CoInitialize(nullptr);\r
 298                         producer_.reset(new decklink_producer(in_format_desc, device_index, frame_factory, out_format_desc, filter_str));\r
 299                 });\r
 300         }\r
 301 \r
 302         ~decklink_producer_proxy()\r
 303         {               \r
 304                 executor_.invoke([=]\r
 305                 {\r
 306                         producer_.reset();\r
 307                         CoUninitialize();\r
 308                 });\r
 309         }\r
 310         \r
 311         // frame_producer\r
 312                                 \r
 313         virtual core::draw_frame receive(int flags) override\r
 314         {\r
 315                 auto frame = producer_->get_frame(flags);\r
 316 \r
 317                 if(frame != core::draw_frame::late())\r
 318                         last_frame_ = frame;\r
 319 \r
 320                 return frame;\r
 321         }\r
 322 \r
 323         virtual core::draw_frame last_frame() const override\r
 324         {\r
 325                 return core::draw_frame::still(last_frame_);\r
 326         }\r
 327                 \r
 328         virtual uint32_t nb_frames() const override\r
 329         {\r
 330                 return length_;\r
 331         }\r
 332         \r
 333         virtual std::wstring print() const override\r
 334         {\r
 335                 return producer_->print();\r
 336         }\r
 337         \r
 338         virtual std::wstring name() const override\r
 339         {\r
 340                 return L"decklink";\r
 341         }\r
 342 \r
 343         virtual boost::property_tree::wptree info() const override\r
 344         {\r
 345                 boost::property_tree::wptree info;\r
 346                 info.add(L"type", L"decklink");\r
 347                 return info;\r
 348         }\r
 349 };\r
 350 \r
 351 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
 352 {\r
 353         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 354                 return core::frame_producer::empty();\r
 355 \r
 356         auto device_index       = get_param(L"DEVICE", params, -1);\r
 357         if(device_index == -1)\r
 358                 device_index = boost::lexical_cast<int>(params.at(1));\r
 359         \r
 360         auto filter_str         = get_param(L"FILTER", params);         \r
 361         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());   \r
 362         auto in_format_desc = core::video_format_desc(get_param(L"FORMAT", params, L"INVALID"));\r
 363         \r
 364         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 365         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 366         \r
 367         if(in_format_desc.format == core::video_format::invalid)\r
 368                 in_format_desc = out_format_desc;\r
 369                         \r
 370         return spl::make_shared<decklink_producer_proxy>(in_format_desc, frame_factory, out_format_desc, device_index, filter_str, length);\r
 371 }\r
 372 \r
 373 }}