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/mixer/write_frame.h>\r
  37 #include <core/producer/frame/audio_transform.h>\r
  38 #include <core/producer/frame/frame_factory.h>\r
  39 #include <core/producer/frame_muxer.h>\r
  40 \r
  41 #include <tbb/concurrent_queue.h>\r
  42 #include <tbb/atomic.h>\r
  43 \r
  44 #include <boost/algorithm/string.hpp>\r
  45 #include <boost/timer.hpp>\r
  46 \r
  47 #if defined(_MSC_VER)\r
  48 #pragma warning (push)\r
  49 #pragma warning (disable : 4244)\r
  50 #endif\r
  51 extern "C" \r
  52 {\r
  53         #define __STDC_CONSTANT_MACROS\r
  54         #define __STDC_LIMIT_MACROS\r
  55         #include <libavcodec/avcodec.h>\r
  56 }\r
  57 #if defined(_MSC_VER)\r
  58 #pragma warning (pop)\r
  59 #endif\r
  60 \r
  61 #pragma warning(push)\r
  62 #pragma warning(disable : 4996)\r
  63 \r
  64         #include <atlbase.h>\r
  65 \r
  66         #include <atlcom.h>\r
  67         #include <atlhost.h>\r
  68 \r
  69 #pragma warning(push)\r
  70 \r
  71 #include <functional>\r
  72 \r
  73 namespace caspar { \r
  74                 \r
  75 class decklink_producer : public IDeckLinkInputCallback\r
  76 {       \r
  77         CComPtr<IDeckLink>                                                                                      decklink_;\r
  78         CComQIPtr<IDeckLinkInput>                                                                       input_;\r
  79         \r
  80         const std::wstring                                                                                      model_name_;\r
  81         const core::video_format_desc                                                           format_desc_;\r
  82         const size_t                                                                                            device_index_;\r
  83 \r
  84         std::shared_ptr<diagnostics::graph>                                                     graph_;\r
  85         boost::timer                                                                                            tick_timer_;\r
  86         boost::timer                                                                                            frame_timer_;\r
  87 \r
  88         std::vector<int16_t>                                                                            audio_samples_;\r
  89         \r
  90         safe_ptr<core::frame_factory>                                                           frame_factory_;\r
  91 \r
  92         tbb::concurrent_bounded_queue<safe_ptr<core::basic_frame>>      frame_buffer_;\r
  93         safe_ptr<core::basic_frame>                                                                     tail_;\r
  94 \r
  95         std::exception_ptr                                                                                      exception_;\r
  96         filter                                                                                                          filter_;\r
  97                 \r
  98         core::frame_muxer                                                                                       muxer_;\r
  99 \r
 100 public:\r
 101         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)\r
 102                 : decklink_(get_device(device_index))\r
 103                 , input_(decklink_)\r
 104                 , model_name_(get_model_name(decklink_))\r
 105                 , format_desc_(format_desc)\r
 106                 , device_index_(device_index)\r
 107                 , frame_factory_(frame_factory)\r
 108                 , tail_(core::basic_frame::empty())\r
 109                 , filter_(filter)\r
 110                 , muxer_(double_rate(filter) ? format_desc.fps * 2.0 : format_desc.fps, frame_factory->get_video_format_desc().mode, frame_factory->get_video_format_desc().fps)\r
 111         {\r
 112                 frame_buffer_.set_capacity(2);\r
 113                 \r
 114                 graph_ = diagnostics::create_graph(boost::bind(&decklink_producer::print, this));\r
 115                 graph_->add_guide("tick-time", 0.5);\r
 116                 graph_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
 117                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 118                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 119                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 120                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 121                 \r
 122                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 123                 \r
 124                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 125                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 126                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 127                                                                         << msg_info(narrow(print()) + " Could not enable video input.")\r
 128                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 129 \r
 130                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, 2))) \r
 131                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 132                                                                         << msg_info(narrow(print()) + " Could not enable audio input.")\r
 133                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 134                         \r
 135                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 136                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 137                                                                         << msg_info(narrow(print()) + " Failed to set input callback.")\r
 138                                                                         << boost::errinfo_api_function("SetCallback"));\r
 139                         \r
 140                 if(FAILED(input_->StartStreams()))\r
 141                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 142                                                                         << msg_info(narrow(print()) + " Failed to start input stream.")\r
 143                                                                         << boost::errinfo_api_function("StartStreams"));\r
 144 \r
 145                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";\r
 146         }\r
 147 \r
 148         ~decklink_producer()\r
 149         {\r
 150                 if(input_ != nullptr) \r
 151                 {\r
 152                         input_->StopStreams();\r
 153                         input_->DisableVideoInput();\r
 154                 }\r
 155         }\r
 156 \r
 157         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 158         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 159         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 160                 \r
 161         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 162         {\r
 163                 return S_OK;\r
 164         }\r
 165 \r
 166         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 167         {       \r
 168                 if(!video)\r
 169                         return S_OK;\r
 170 \r
 171                 try\r
 172                 {\r
 173                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 174                         tick_timer_.restart();\r
 175 \r
 176                         frame_timer_.restart();\r
 177 \r
 178                         void* bytes = nullptr;\r
 179                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 180                                 return S_OK;\r
 181                         \r
 182                         safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 183                         avcodec_get_frame_defaults(av_frame.get());\r
 184                                                 \r
 185                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 186                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 187                         av_frame->format                        = PIX_FMT_UYVY422;\r
 188                         av_frame->width                         = video->GetWidth();\r
 189                         av_frame->height                        = video->GetHeight();\r
 190                         av_frame->interlaced_frame      = format_desc_.mode != core::video_mode::progressive;\r
 191                         av_frame->top_field_first       = format_desc_.mode == core::video_mode::upper ? 1 : 0;\r
 192                                         \r
 193                         filter_.push(av_frame);\r
 194                         BOOST_FOREACH(auto& av_frame2, filter_.poll())\r
 195                                 muxer_.push(make_write_frame(this, av_frame2, frame_factory_));         \r
 196                                                                         \r
 197                         // It is assumed that audio is always equal or ahead of video.\r
 198                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)))\r
 199                         {\r
 200                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 201                                 auto audio_data = reinterpret_cast<short*>(bytes);\r
 202                                 audio_samples_.insert(audio_samples_.end(), audio_data, audio_data + sample_frame_count*2);\r
 203 \r
 204                                 if(audio_samples_.size() > frame_factory_->get_video_format_desc().audio_samples_per_frame)\r
 205                                 {\r
 206                                         const auto begin = audio_samples_.begin();\r
 207                                         const auto end   = begin +  frame_factory_->get_video_format_desc().audio_samples_per_frame;\r
 208                                         muxer_.push(std::vector<int16_t>(begin, end));\r
 209                                         audio_samples_.erase(begin, end);\r
 210                                 }\r
 211                         }\r
 212                         else\r
 213                                 muxer_.push(std::vector<int16_t>(frame_factory_->get_video_format_desc().audio_samples_per_frame, 0));\r
 214                                         \r
 215                         while(!muxer_.empty())\r
 216                         {\r
 217                                 if(!frame_buffer_.try_push(muxer_.pop()))\r
 218                                         graph_->add_tag("dropped-frame");\r
 219                         }\r
 220 \r
 221                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 222 \r
 223                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 224                 }\r
 225                 catch(...)\r
 226                 {\r
 227                         exception_ = std::current_exception();\r
 228                         return E_FAIL;\r
 229                 }\r
 230 \r
 231                 return S_OK;\r
 232         }\r
 233         \r
 234         safe_ptr<core::basic_frame> get_frame()\r
 235         {\r
 236                 if(exception_ != nullptr)\r
 237                         std::rethrow_exception(exception_);\r
 238 \r
 239                 if(!frame_buffer_.try_pop(tail_))\r
 240                         graph_->add_tag("late-frame");\r
 241                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 242                 return tail_;\r
 243         }\r
 244         \r
 245         std::wstring print() const\r
 246         {\r
 247                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"]";\r
 248         }\r
 249 };\r
 250         \r
 251 class decklink_producer_proxy : public core::frame_producer\r
 252 {               \r
 253         com_context<decklink_producer> context_;\r
 254 public:\r
 255 \r
 256         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
 257                 : context_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 258         {\r
 259                 context_.reset([&]{return new decklink_producer(format_desc, device_index, frame_factory, filter_str);}); \r
 260         }\r
 261                                 \r
 262         virtual safe_ptr<core::basic_frame> receive()\r
 263         {\r
 264                 return context_->get_frame();\r
 265         }\r
 266         \r
 267         std::wstring print() const\r
 268         {\r
 269                 return context_->print();\r
 270         }\r
 271 };\r
 272 \r
 273 safe_ptr<core::frame_producer> create_decklink_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 274 {\r
 275         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 276                 return core::frame_producer::empty();\r
 277 \r
 278         size_t device_index = 1;\r
 279         if(params.size() > 1)\r
 280                 device_index = lexical_cast_or_default(params[1], 1);\r
 281 \r
 282         core::video_format_desc format_desc = core::video_format_desc::get(L"PAL");\r
 283         if(params.size() > 2)\r
 284         {\r
 285                 auto desc = core::video_format_desc::get(params[2]);\r
 286                 if(desc.format != core::video_format::invalid)\r
 287                         format_desc = desc;\r
 288         }\r
 289         \r
 290         std::wstring filter_str = L"";\r
 291 \r
 292         auto filter_it = std::find(params.begin(), params.end(), L"FILTER");\r
 293         if(filter_it != params.end())\r
 294         {\r
 295                 if(++filter_it != params.end())\r
 296                         filter_str = *filter_it;\r
 297         }\r
 298 \r
 299         return make_safe<decklink_producer_proxy>(frame_factory, format_desc, device_index, filter_str);\r
 300 }\r
 301 \r
 302 }