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