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