git.sesse.net Git - casparcg/blob - core/producer/decklink/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 <mixer/frame/draw_frame.h>\r
  26 #include "../../consumer/decklink/DeckLinkAPI_h.h" // TODO: Change this\r
  27 #include "../../consumer/decklink/util.h" // TODO: Change this\r
  28 \r
  29 #include <common/concurrency/executor.h>\r
  30 #include <common/exception/exceptions.h>\r
  31 \r
  32 #include <tbb/concurrent_queue.h>\r
  33 #include <tbb/atomic.h>\r
  34 \r
  35 #include <boost/algorithm/string.hpp>\r
  36 \r
  37 #pragma warning(push)\r
  38 #pragma warning(disable : 4996)\r
  39 \r
  40         #include <atlbase.h>\r
  41 \r
  42         #include <atlcom.h>\r
  43         #include <atlhost.h>\r
  44 \r
  45 #pragma warning(push)\r
  46 \r
  47 namespace caspar { namespace core {\r
  48 \r
  49 class decklink_input : public IDeckLinkInputCallback\r
  50 {\r
  51         struct co_init\r
  52         {\r
  53                 co_init(){CoInitialize(nullptr);}\r
  54                 ~co_init(){CoUninitialize();}\r
  55         } co_;\r
  56 \r
  57         const video_format_desc format_desc_;\r
  58         const size_t device_index_;\r
  59 \r
  60         CComPtr<IDeckLink>                      decklink_;\r
  61         CComQIPtr<IDeckLinkInput>       input_;\r
  62         IDeckLinkDisplayMode*           d_mode_;\r
  63 \r
  64         std::shared_ptr<frame_factory> frame_factory_;\r
  65 \r
  66         tbb::concurrent_bounded_queue<safe_ptr<draw_frame>> frame_buffer_;\r
  67         safe_ptr<draw_frame> head_;\r
  68         safe_ptr<draw_frame> tail_;\r
  69 \r
  70 public:\r
  71 \r
  72         decklink_input(const video_format_desc& format_desc, size_t device_index, const std::shared_ptr<frame_factory>& frame_factory)\r
  73                 : device_index_(device_index)\r
  74                 , frame_factory_(frame_factory)\r
  75                 , head_(draw_frame::empty())\r
  76                 , tail_(draw_frame::empty())\r
  77         {\r
  78                 frame_buffer_.set_capacity(4);\r
  79                 \r
  80                 CComPtr<IDeckLinkIterator> pDecklinkIterator;\r
  81                 if(FAILED(pDecklinkIterator.CoCreateInstance(CLSID_CDeckLinkIterator)))\r
  82                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: No Decklink drivers installed."));\r
  83 \r
  84                 size_t n = 0;\r
  85                 while(n < device_index_ && pDecklinkIterator->Next(&decklink_) == S_OK){++n;}   \r
  86 \r
  87                 if(n != device_index_ || !decklink_)\r
  88                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: No Decklink card found.") << arg_name_info("device_index") << arg_value_info(boost::lexical_cast<std::string>(device_index_)));\r
  89 \r
  90                 input_ = decklink_;\r
  91 \r
  92                 BSTR pModelName;\r
  93                 decklink_->GetModelName(&pModelName);\r
  94                 if(pModelName != nullptr)\r
  95                         CASPAR_LOG(info) << "decklink_producer: Modelname: " << pModelName;\r
  96                 \r
  97                 unsigned long decklinkVideoFormat = GetDecklinkVideoFormat(format_desc.format);\r
  98                 if(decklinkVideoFormat == ULONG_MAX) \r
  99                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: Card does not support requested videoformat."));\r
 100 \r
 101                 d_mode_ = get_display_mode((BMDDisplayMode)decklinkVideoFormat);\r
 102                 if(d_mode_ == nullptr) \r
 103                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: Card does not support requested videoformat."));\r
 104 \r
 105                 BMDDisplayModeSupport displayModeSupport;\r
 106                 if(FAILED(input_->DoesSupportVideoMode((BMDDisplayMode)decklinkVideoFormat, bmdFormat8BitYUV, &displayModeSupport)))\r
 107                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: Card does not support requested videoformat."));\r
 108 \r
 109                 // NOTE: bmdFormat8BitABGR does not seem to work with Decklink HD Extreme 3D\r
 110                 if(FAILED(input_->EnableVideoInput((BMDDisplayMode)decklinkVideoFormat, bmdFormat8BitYUV, 0))) \r
 111                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("DECKLINK: Could not enable video input."));\r
 112                         \r
 113                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 114                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("decklink_producer: Failed to set input callback."));\r
 115                         \r
 116                 if(FAILED(input_->StartStreams()))\r
 117                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("DECKLINK: Failed to start input stream."));\r
 118 \r
 119                 CASPAR_LOG(info) << "decklink_producer: Successfully initialized decklink for " << format_desc_.name;\r
 120         }\r
 121 \r
 122         ~decklink_input()\r
 123         {\r
 124                 if(input_ != nullptr) \r
 125                 {\r
 126                         input_->StopStreams();\r
 127                         input_->DisableVideoInput();\r
 128                 }\r
 129         }\r
 130 \r
 131         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 132         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 133         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 134                 \r
 135         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 136         {\r
 137                 d_mode_ = newDisplayMode;\r
 138                 return S_OK;\r
 139         }\r
 140 \r
 141         // TODO: Enable audio input\r
 142         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* /*audio*/)\r
 143         {               \r
 144                 if(!frame_buffer_.try_push(head_) || video == nullptr)\r
 145                         return S_OK;            \r
 146                                 \r
 147                 void* bytes = nullptr;\r
 148                 if(FAILED(video->GetBytes(&bytes)))\r
 149                         return S_OK;\r
 150 \r
 151                 pixel_format_desc desc;\r
 152                 desc.pix_fmt = pixel_format::ycbcr;\r
 153                 desc.planes.push_back(pixel_format_desc::plane(d_mode_->GetWidth(),   d_mode_->GetHeight(), 1));\r
 154                 desc.planes.push_back(pixel_format_desc::plane(d_mode_->GetWidth()/2, d_mode_->GetHeight(), 1));\r
 155                 desc.planes.push_back(pixel_format_desc::plane(d_mode_->GetWidth()/2, d_mode_->GetHeight(), 1));                        \r
 156                 auto frame = frame_factory_->create_frame(desc);\r
 157 \r
 158                 unsigned char* data = reinterpret_cast<unsigned char*>(bytes);\r
 159                 int frame_size = (d_mode_->GetWidth() * 16 / 8) * d_mode_->GetHeight();\r
 160 \r
 161                 // Convert to planar YUV422\r
 162                 unsigned char* y  = frame->image_data(0).begin();\r
 163                 unsigned char* cb = frame->image_data(1).begin();\r
 164                 unsigned char* cr = frame->image_data(2).begin();\r
 165                 \r
 166                 tbb::parallel_for(tbb::blocked_range<size_t>(0, frame_size/4), \r
 167                 [&](const tbb::blocked_range<size_t>& r)\r
 168                 {\r
 169                         for(auto n = r.begin(); n != r.end(); ++n)\r
 170                         {\r
 171                                 cb[n]     = data[n*4+0];\r
 172                                 y [n*2+0] = data[n*4+1];\r
 173                                 cr[n]     = data[n*4+2];\r
 174                                 y [n*2+1] = data[n*4+3];\r
 175                         }\r
 176                 });\r
 177 \r
 178                 head_ = frame;\r
 179 \r
 180                 return S_OK;\r
 181         }\r
 182 \r
 183         IDeckLinkDisplayMode* get_display_mode(BMDDisplayMode mode)\r
 184         {       \r
 185                 CComPtr<IDeckLinkDisplayModeIterator>   iterator;\r
 186                 IDeckLinkDisplayMode*                                   d_mode;\r
 187         \r
 188                 if (input_->GetDisplayModeIterator(&iterator) != S_OK)\r
 189                         return nullptr;\r
 190 \r
 191                 while (iterator->Next(&d_mode) == S_OK)\r
 192                 {\r
 193                         if(d_mode->GetDisplayMode() == mode)\r
 194                                 return d_mode;\r
 195                 }\r
 196                 return nullptr;\r
 197         }\r
 198 \r
 199         safe_ptr<draw_frame> get_frame()\r
 200         {\r
 201                 frame_buffer_.try_pop(tail_);\r
 202                 return tail_;\r
 203         }\r
 204 };\r
 205         \r
 206 class decklink_producer : public frame_producer\r
 207 {       \r
 208         const size_t device_index_;\r
 209 \r
 210         std::unique_ptr<decklink_input> input_;\r
 211         \r
 212         const video_format_desc format_desc_;\r
 213         \r
 214         executor executor_;\r
 215 public:\r
 216 \r
 217         explicit decklink_producer(const video_format_desc& format_desc, size_t device_index)\r
 218                 : format_desc_(format_desc) \r
 219                 , device_index_(device_index){}\r
 220 \r
 221         ~decklink_producer()\r
 222         {       \r
 223                 executor_.invoke([this]\r
 224                 {\r
 225                         input_ = nullptr;\r
 226                 });\r
 227         }\r
 228 \r
 229         virtual void initialize(const safe_ptr<frame_factory>& frame_factory)\r
 230         {\r
 231                 executor_.start();\r
 232                 executor_.invoke([=]\r
 233                 {\r
 234                         input_.reset(new decklink_input(format_desc_, device_index_, frame_factory));\r
 235                 });\r
 236         }\r
 237         \r
 238         virtual safe_ptr<draw_frame> receive()\r
 239         {\r
 240                 return input_->get_frame();\r
 241         }\r
 242         \r
 243         virtual std::wstring print() const { return + L"decklink"; }\r
 244 };\r
 245 \r
 246 safe_ptr<frame_producer> create_decklink_producer(const std::vector<std::wstring>& params)\r
 247 {\r
 248         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 249                 return frame_producer::empty();\r
 250 \r
 251         size_t device_index = 1;\r
 252         if(params.size() > 1)\r
 253         {\r
 254                 try{device_index = boost::lexical_cast<int>(params[1]);}\r
 255                 catch(boost::bad_lexical_cast&){}\r
 256         }\r
 257 \r
 258         video_format_desc format_desc = video_format_desc::get(L"PAL");\r
 259         if(params.size() > 2)\r
 260         {\r
 261                 format_desc = video_format_desc::get(params[2]);\r
 262                 format_desc = format_desc.format != video_format::invalid ? format_desc : video_format_desc::get(L"PAL");\r
 263         }\r
 264 \r
 265         return make_safe<decklink_producer>(format_desc, device_index);\r
 266 }\r
 267 \r
 268 }}