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

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\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 */\r
  20  \r
  21 #include "../stdafx.h"\r
  22 \r
  23 #include "decklink_producer.h"\r
  24 \r
  25 #include "../interop/DeckLinkAPI_h.h"\r
  26 #include "../util/util.h"\r
  27 \r
  28 #include "../../ffmpeg/producer/filter/filter.h"\r
  29 #include "../../ffmpeg/producer/util.h"\r
  30 \r
  31 #include <common/diagnostics/graph.h>\r
  32 #include <common/concurrency/com_context.h>\r
  33 #include <common/exception/exceptions.h>\r
  34 #include <common/memory/memclr.h>\r
  35 \r
  36 #include <core/producer/frame/frame_factory.h>\r
  37 #include <core/mixer/write_frame.h>\r
  38 #include <core/producer/frame/audio_transform.h>\r
  39 \r
  40 #include <tbb/concurrent_queue.h>\r
  41 #include <tbb/atomic.h>\r
  42 \r
  43 #include <boost/algorithm/string.hpp>\r
  44 #include <boost/timer.hpp>\r
  45 \r
  46 #if defined(_MSC_VER)\r
  47 #pragma warning (push)\r
  48 #pragma warning (disable : 4244)\r
  49 #endif\r
  50 extern "C" \r
  51 {\r
  52         #define __STDC_CONSTANT_MACROS\r
  53         #define __STDC_LIMIT_MACROS\r
  54         #include <libavcodec/avcodec.h>\r
  55 }\r
  56 #if defined(_MSC_VER)\r
  57 #pragma warning (pop)\r
  58 #endif\r
  59 \r
  60 #pragma warning(push)\r
  61 #pragma warning(disable : 4996)\r
  62 \r
  63         #include <atlbase.h>\r
  64 \r
  65         #include <atlcom.h>\r
  66         #include <atlhost.h>\r
  67 \r
  68 #pragma warning(push)\r
  69 \r
  70 #include <functional>\r
  71 \r
  72 namespace caspar { \r
  73 \r
  74 class frame_filter\r
  75 {\r
  76         std::unique_ptr<filter>                                 filter_;\r
  77         safe_ptr<core::frame_factory>                   frame_factory_;\r
  78         std::deque<std::vector<int16_t>>                audio_buffer_;\r
  79 \r
  80         std::vector<safe_ptr<AVFrame>>                  buffer_;\r
  81 \r
  82 public:\r
  83         frame_filter(const std::string& filter_str, const safe_ptr<core::frame_factory>& frame_factory) \r
  84                 : filter_(filter_str.empty() ? nullptr : new filter(filter_str))\r
  85                 , frame_factory_(frame_factory)\r
  86         {\r
  87         }\r
  88 \r
  89         bool execute(const safe_ptr<core::write_frame>& input_frame, safe_ptr<core::basic_frame>& output_frame)\r
  90         {               \r
  91                 if(!filter_)\r
  92                 {\r
  93                         input_frame->commit();\r
  94                         output_frame = input_frame;\r
  95                         return true;\r
  96                 }\r
  97                 \r
  98                 auto desc = input_frame->get_pixel_format_desc();\r
  99 \r
 100                 auto av_frame = as_av_frame(input_frame);\r
 101 \r
 102                 audio_buffer_.push_back(std::move(input_frame->audio_data()));\r
 103                 \r
 104                 filter_->push(av_frame);        \r
 105                 buffer_ = filter_->poll();      \r
 106                 \r
 107                 return try_pop(output_frame);\r
 108         }\r
 109 \r
 110 private:                \r
 111 \r
 112         bool try_pop(safe_ptr<core::basic_frame>& output)\r
 113         {\r
 114                 if(buffer_.empty())\r
 115                         return false;\r
 116 \r
 117                 auto audio_data = std::move(audio_buffer_.front());\r
 118                 audio_buffer_.pop_back();\r
 119 \r
 120                 if(buffer_.size() == 2)\r
 121                 {\r
 122                         auto frame1 = make_write_frame(this, buffer_[0], frame_factory_);\r
 123                         auto frame2 = make_write_frame(this, buffer_[1], frame_factory_);\r
 124                         frame1->audio_data() = std::move(audio_data);\r
 125                         frame2->get_audio_transform().set_has_audio(false);\r
 126                         output = core::basic_frame::interlace(frame1, frame2, frame_factory_->get_video_format_desc().mode);\r
 127                 }\r
 128                 else if(buffer_.size() > 0)\r
 129                 {\r
 130                         auto frame1 = make_write_frame(this, buffer_[0], frame_factory_);\r
 131                         frame1->audio_data() = std::move(audio_data);\r
 132                         output = frame1;\r
 133                 }\r
 134                 buffer_.clear();\r
 135 \r
 136                 return true;\r
 137         }\r
 138 };\r
 139         \r
 140 class decklink_producer : public IDeckLinkInputCallback\r
 141 {       \r
 142         CComPtr<IDeckLink>                                                                                      decklink_;\r
 143         CComQIPtr<IDeckLinkInput>                                                                       input_;\r
 144         \r
 145         const std::wstring                                                                                      model_name_;\r
 146         const core::video_format_desc                                                           format_desc_;\r
 147         const size_t                                                                                            device_index_;\r
 148 \r
 149         std::shared_ptr<diagnostics::graph>                                                     graph_;\r
 150         boost::timer                                                                                            tick_timer_;\r
 151         boost::timer                                                                                            frame_timer_;\r
 152         \r
 153         std::vector<short>                                                                                      audio_data_;\r
 154 \r
 155         safe_ptr<core::frame_factory>                                                           frame_factory_;\r
 156 \r
 157         tbb::concurrent_bounded_queue<safe_ptr<core::basic_frame>>      frame_buffer_;\r
 158         safe_ptr<core::basic_frame>                                                                     tail_;\r
 159 \r
 160         std::exception_ptr                                                                                      exception_;\r
 161         frame_filter                                                                                            filter_;\r
 162 \r
 163 public:\r
 164         decklink_producer(const core::video_format_desc& format_desc, size_t device_index, const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filter_str)\r
 165                 : decklink_(get_device(device_index))\r
 166                 , input_(decklink_)\r
 167                 , model_name_(get_model_name(decklink_))\r
 168                 , format_desc_(format_desc)\r
 169                 , device_index_(device_index)\r
 170                 , frame_factory_(frame_factory)\r
 171                 , tail_(core::basic_frame::empty())\r
 172                 , filter_(narrow(filter_str), frame_factory_)\r
 173         {\r
 174                 frame_buffer_.set_capacity(2);\r
 175                 \r
 176                 graph_ = diagnostics::create_graph(boost::bind(&decklink_producer::print, this));\r
 177                 graph_->add_guide("tick-time", 0.5);\r
 178                 graph_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
 179                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 180                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 181                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 182                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 183                 \r
 184                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 185                 \r
 186                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 187                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 188                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 189                                                                         << msg_info(narrow(print()) + " Could not enable video input.")\r
 190                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 191 \r
 192                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, 2))) \r
 193                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 194                                                                         << msg_info(narrow(print()) + " Could not enable audio input.")\r
 195                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 196                         \r
 197                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 198                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 199                                                                         << msg_info(narrow(print()) + " Failed to set input callback.")\r
 200                                                                         << boost::errinfo_api_function("SetCallback"));\r
 201                         \r
 202                 if(FAILED(input_->StartStreams()))\r
 203                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 204                                                                         << msg_info(narrow(print()) + " Failed to start input stream.")\r
 205                                                                         << boost::errinfo_api_function("StartStreams"));\r
 206 \r
 207                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";\r
 208         }\r
 209 \r
 210         ~decklink_producer()\r
 211         {\r
 212                 if(input_ != nullptr) \r
 213                 {\r
 214                         input_->StopStreams();\r
 215                         input_->DisableVideoInput();\r
 216                 }\r
 217         }\r
 218 \r
 219         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 220         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 221         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 222                 \r
 223         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 224         {\r
 225                 return S_OK;\r
 226         }\r
 227 \r
 228         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 229         {       \r
 230                 if(!video)\r
 231                         return S_OK;\r
 232 \r
 233                 try\r
 234                 {\r
 235                         auto result = core::basic_frame::empty();\r
 236 \r
 237                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 238                         tick_timer_.restart();\r
 239 \r
 240                         frame_timer_.restart();\r
 241                                                 \r
 242                         core::pixel_format_desc desc;\r
 243                         desc.pix_fmt = core::pixel_format::ycbcr;\r
 244                         desc.planes.push_back(core::pixel_format_desc::plane(video->GetWidth(),   video->GetHeight(), 1));\r
 245                         desc.planes.push_back(core::pixel_format_desc::plane(video->GetWidth()/2, video->GetHeight(), 1));\r
 246                         desc.planes.push_back(core::pixel_format_desc::plane(video->GetWidth()/2, video->GetHeight(), 1));                      \r
 247                         auto frame = frame_factory_->create_frame(this, desc);\r
 248                                                 \r
 249                         void* bytes = nullptr;\r
 250                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 251                                 return S_OK;\r
 252 \r
 253                         unsigned char* data = reinterpret_cast<unsigned char*>(bytes);\r
 254                         const size_t frame_size = (format_desc_.width * 16 / 8) * format_desc_.height;\r
 255 \r
 256                         // Convert to planar YUV422\r
 257                         unsigned char* y  = frame->image_data(0).begin();\r
 258                         unsigned char* cb = frame->image_data(1).begin();\r
 259                         unsigned char* cr = frame->image_data(2).begin();\r
 260                 \r
 261                         tbb::parallel_for(tbb::blocked_range<size_t>(0, frame_size/4), [&](const tbb::blocked_range<size_t>& r)\r
 262                         {\r
 263                                 for(auto n = r.begin(); n != r.end(); ++n)\r
 264                                 {\r
 265                                         cb[n]     = data[n*4+0];\r
 266                                         y [n*2+0] = data[n*4+1];\r
 267                                         cr[n]     = data[n*4+2];\r
 268                                         y [n*2+1] = data[n*4+3];\r
 269                                 }\r
 270                         });\r
 271                         frame->set_type(format_desc_.mode);\r
 272                         \r
 273                         // It is assumed that audio is always equal or ahead of video.\r
 274                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)))\r
 275                         {\r
 276                                 const size_t audio_samples = static_cast<size_t>(48000.0 / format_desc_.fps);\r
 277                                 const size_t audio_nchannels = 2;\r
 278 \r
 279                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 280                                 auto audio_data = reinterpret_cast<short*>(bytes);\r
 281                                 audio_data_.insert(audio_data_.end(), audio_data, audio_data + sample_frame_count*2);\r
 282 \r
 283                                 if(audio_data_.size() > audio_samples*audio_nchannels)\r
 284                                 {\r
 285                                         frame->audio_data() = std::vector<short>(audio_data_.begin(), audio_data_.begin() +  audio_samples*audio_nchannels);\r
 286                                         audio_data_.erase(audio_data_.begin(), audio_data_.begin() +  audio_samples*audio_nchannels);\r
 287                                 }\r
 288                         }\r
 289                 \r
 290                         filter_.execute(frame, result);         \r
 291                         \r
 292                         if(!frame_buffer_.try_push(result))\r
 293                                 graph_->add_tag("dropped-frame");\r
 294                         \r
 295                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 296 \r
 297                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 298                 }\r
 299                 catch(...)\r
 300                 {\r
 301                         exception_ = std::current_exception();\r
 302                         return E_FAIL;\r
 303                 }\r
 304 \r
 305                 return S_OK;\r
 306         }\r
 307         \r
 308         safe_ptr<core::basic_frame> get_frame()\r
 309         {\r
 310                 if(exception_ != nullptr)\r
 311                         std::rethrow_exception(exception_);\r
 312 \r
 313                 if(!frame_buffer_.try_pop(tail_))\r
 314                         graph_->add_tag("late-frame");\r
 315                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 316                 return tail_;\r
 317         }\r
 318         \r
 319         std::wstring print() const\r
 320         {\r
 321                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"]";\r
 322         }\r
 323 };\r
 324         \r
 325 class decklink_producer_proxy : public core::frame_producer\r
 326 {               \r
 327         com_context<decklink_producer> context_;\r
 328 public:\r
 329 \r
 330         explicit decklink_producer_proxy(const safe_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, size_t device_index, const std::wstring& filter_str = L"")\r
 331                 : context_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 332         {\r
 333                 context_.reset([&]{return new decklink_producer(format_desc, device_index, frame_factory, filter_str);}); \r
 334         }\r
 335                                 \r
 336         virtual safe_ptr<core::basic_frame> receive()\r
 337         {\r
 338                 return context_->get_frame();\r
 339         }\r
 340         \r
 341         std::wstring print() const\r
 342         {\r
 343                 return context_->print();\r
 344         }\r
 345 };\r
 346 \r
 347 safe_ptr<core::frame_producer> create_decklink_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 348 {\r
 349         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 350                 return core::frame_producer::empty();\r
 351 \r
 352         size_t device_index = 1;\r
 353         if(params.size() > 1)\r
 354                 device_index = lexical_cast_or_default(params[1], 1);\r
 355 \r
 356         core::video_format_desc format_desc = core::video_format_desc::get(L"PAL");\r
 357         if(params.size() > 2)\r
 358         {\r
 359                 auto desc = core::video_format_desc::get(params[2]);\r
 360                 if(desc.format != core::video_format::invalid)\r
 361                         format_desc = desc;\r
 362         }\r
 363         \r
 364         std::wstring filter_str = L"";\r
 365 \r
 366         auto filter_it = std::find(params.begin(), params.end(), L"FILTER");\r
 367         if(filter_it != params.end())\r
 368         {\r
 369                 if(++filter_it != params.end())\r
 370                         filter_str = *filter_it;\r
 371         }\r
 372 \r
 373         return make_safe<decklink_producer_proxy>(frame_factory, format_desc, device_index, filter_str);\r
 374 }\r
 375 \r
 376 }