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

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "decklink_producer.h"\r
  25 \r
  26 #include "../interop/DeckLinkAPI_h.h"\r
  27 #include "../util/util.h"\r
  28 \r
  29 #include "../../ffmpeg/producer/filter/filter.h"\r
  30 #include "../../ffmpeg/producer/util/util.h"\r
  31 #include "../../ffmpeg/producer/muxer/frame_muxer.h"\r
  32 #include "../../ffmpeg/producer/muxer/display_mode.h"\r
  33 \r
  34 #include <common/concurrency/executor.h>\r
  35 #include <common/diagnostics/graph.h>\r
  36 #include <common/except.h>\r
  37 #include <common/log.h>\r
  38 #include <common/param.h>\r
  39 \r
  40 #include <core/frame/data_frame.h>\r
  41 #include <core/frame/draw_frame.h>\r
  42 #include <core/frame/frame_transform.h>\r
  43 #include <core/frame/frame_factory.h>\r
  44 \r
  45 #include <tbb/concurrent_queue.h>\r
  46 \r
  47 #include <boost/algorithm/string.hpp>\r
  48 #include <boost/foreach.hpp>\r
  49 #include <boost/property_tree/ptree.hpp>\r
  50 #include <boost/timer.hpp>\r
  51 \r
  52 #if defined(_MSC_VER)\r
  53 #pragma warning (push)\r
  54 #pragma warning (disable : 4244)\r
  55 #endif\r
  56 extern "C" \r
  57 {\r
  58         #define __STDC_CONSTANT_MACROS\r
  59         #define __STDC_LIMIT_MACROS\r
  60         #include <libavcodec/avcodec.h>\r
  61 }\r
  62 #if defined(_MSC_VER)\r
  63 #pragma warning (pop)\r
  64 #endif\r
  65 \r
  66 #pragma warning(push)\r
  67 #pragma warning(disable : 4996)\r
  68 \r
  69         #include <atlbase.h>\r
  70 \r
  71         #include <atlcom.h>\r
  72         #include <atlhost.h>\r
  73 \r
  74 #pragma warning(push)\r
  75 \r
  76 #include <functional>\r
  77 \r
  78 namespace caspar { namespace decklink {\r
  79                 \r
  80 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback\r
  81 {       \r
  82         spl::shared_ptr<diagnostics::graph>             graph_;\r
  83         boost::timer                                                    tick_timer_;\r
  84         boost::timer                                                    frame_timer_;\r
  85 \r
  86         CComPtr<IDeckLink>                                              decklink_;\r
  87         CComQIPtr<IDeckLinkInput>                               input_;\r
  88         CComQIPtr<IDeckLinkAttributes >                 attributes_;\r
  89         \r
  90         const std::wstring                                              model_name_;\r
  91         const size_t                                                    device_index_;\r
  92         const std::wstring                                              filter_;\r
  93         \r
  94         core::video_format_desc                                 format_desc_;\r
  95         std::vector<int>                                                audio_cadence_;\r
  96         boost::circular_buffer<size_t>                  sync_buffer_;\r
  97         ffmpeg::frame_muxer                                             muxer_;\r
  98                         \r
  99         tbb::atomic<int>                                                flags_;\r
 100         spl::shared_ptr<core::frame_factory>    frame_factory_;\r
 101 \r
 102         tbb::concurrent_bounded_queue<\r
 103                 spl::shared_ptr<core::draw_frame>>      frame_buffer_;\r
 104 \r
 105         std::exception_ptr                                              exception_;             \r
 106 \r
 107 public:\r
 108         decklink_producer(const core::video_format_desc& format_desc, size_t device_index, const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& filter)\r
 109                 : decklink_(get_device(device_index))\r
 110                 , input_(decklink_)\r
 111                 , attributes_(decklink_)\r
 112                 , model_name_(get_model_name(decklink_))\r
 113                 , device_index_(device_index)\r
 114                 , filter_(filter)\r
 115                 , format_desc_(format_desc)\r
 116                 , audio_cadence_(format_desc.audio_cadence)\r
 117                 , muxer_(format_desc.fps, frame_factory, filter)\r
 118                 , sync_buffer_(format_desc.audio_cadence.size())\r
 119                 , frame_factory_(frame_factory)\r
 120         {       \r
 121                 flags_ = 0;\r
 122                 frame_buffer_.set_capacity(2);\r
 123                 \r
 124                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 125                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 126                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 127                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 128                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 129                 graph_->set_text(print());\r
 130                 diagnostics::register_graph(graph_);\r
 131                 \r
 132                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 133                 \r
 134                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 135                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 136                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 137                                                                         << msg_info(print() + L" Could not enable video input.")\r
 138                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 139 \r
 140                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, format_desc_.audio_channels))) \r
 141                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 142                                                                         << msg_info(print() + L" Could not enable audio input.")\r
 143                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 144                         \r
 145                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 146                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 147                                                                         << msg_info(print() + L" Failed to set input callback.")\r
 148                                                                         << boost::errinfo_api_function("SetCallback"));\r
 149                         \r
 150                 if(FAILED(input_->StartStreams()))\r
 151                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 152                                                                         << msg_info(print() + L" Failed to start input stream.")\r
 153                                                                         << boost::errinfo_api_function("StartStreams"));\r
 154         }\r
 155 \r
 156         ~decklink_producer()\r
 157         {\r
 158                 if(input_ != nullptr) \r
 159                 {\r
 160                         input_->StopStreams();\r
 161                         input_->DisableVideoInput();\r
 162                 }\r
 163         }\r
 164 \r
 165         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 166         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 167         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 168                 \r
 169         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 170         {\r
 171                 return S_OK;\r
 172         }\r
 173 \r
 174         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 175         {       \r
 176                 if(!video)\r
 177                         return S_OK;\r
 178 \r
 179                 try\r
 180                 {\r
 181                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 182                         tick_timer_.restart();\r
 183 \r
 184                         frame_timer_.restart();\r
 185 \r
 186                         // PUSH\r
 187 \r
 188                         void* bytes = nullptr;\r
 189                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 190                                 return S_OK;\r
 191                         \r
 192                         spl::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);      \r
 193                         avcodec_get_frame_defaults(av_frame.get());\r
 194                                                 \r
 195                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 196                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 197                         av_frame->format                        = PIX_FMT_UYVY422;\r
 198                         av_frame->width                         = video->GetWidth();\r
 199                         av_frame->height                        = video->GetHeight();\r
 200                         av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 201                         av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 202                                 \r
 203                         std::shared_ptr<core::audio_buffer> audio_buffer;\r
 204 \r
 205                         // It is assumed that audio is always equal or ahead of video.\r
 206                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)) && bytes)\r
 207                         {\r
 208                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 209                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 210                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_data, audio_data + sample_frame_count*format_desc_.audio_channels);\r
 211                         }\r
 212                         else                    \r
 213                                 audio_buffer = std::make_shared<core::audio_buffer>(audio_cadence_.front(), 0);\r
 214                         \r
 215                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)\r
 216                         // This cadence fills the audio mixer most optimally.\r
 217 \r
 218                         sync_buffer_.push_back(audio_buffer->size());           \r
 219                         if(!boost::range::equal(sync_buffer_, audio_cadence_))\r
 220                         {\r
 221                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";\r
 222                                 return S_OK;\r
 223                         }\r
 224 \r
 225                         muxer_.push(audio_buffer);\r
 226                         muxer_.push(av_frame, flags_);  \r
 227                                                                                         \r
 228                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);\r
 229                         \r
 230                         // POLL\r
 231                         \r
 232                         for(auto frame = muxer_.poll(); frame; frame = muxer_.poll())\r
 233                         {\r
 234                                 if(!frame_buffer_.try_push(spl::make_shared_ptr(frame)))\r
 235                                         graph_->set_tag("dropped-frame");\r
 236                         }\r
 237 \r
 238                         graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 239 \r
 240                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 241                 }\r
 242                 catch(...)\r
 243                 {\r
 244                         exception_ = std::current_exception();\r
 245                         return E_FAIL;\r
 246                 }\r
 247 \r
 248                 return S_OK;\r
 249         }\r
 250         \r
 251         spl::shared_ptr<core::draw_frame> get_frame(int flags)\r
 252         {\r
 253                 if(exception_ != nullptr)\r
 254                         std::rethrow_exception(exception_);\r
 255 \r
 256                 flags_ = flags;\r
 257 \r
 258                 spl::shared_ptr<core::draw_frame> frame = core::draw_frame::late();\r
 259                 if(!frame_buffer_.try_pop(frame))\r
 260                         graph_->set_tag("late-frame");\r
 261                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 262                 return frame;\r
 263         }\r
 264         \r
 265         std::wstring print() const\r
 266         {\r
 267                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + format_desc_.name + L"]";\r
 268         }\r
 269 };\r
 270         \r
 271 class decklink_producer_proxy : public core::frame_producer\r
 272 {               \r
 273         std::unique_ptr<decklink_producer>      producer_;\r
 274         const uint32_t                                          length_;\r
 275         spl::shared_ptr<core::draw_frame>       last_frame_;\r
 276         executor                                                        executor_;\r
 277 public:\r
 278         explicit decklink_producer_proxy(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, size_t device_index, const std::wstring& filter_str, uint32_t length)\r
 279                 : executor_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 280                 , length_(length)\r
 281                 , last_frame_(core::draw_frame::empty())\r
 282         {\r
 283                 executor_.invoke([=]\r
 284                 {\r
 285                         CoInitialize(nullptr);\r
 286                         producer_.reset(new decklink_producer(format_desc, device_index, frame_factory, filter_str));\r
 287                 });\r
 288         }\r
 289 \r
 290         ~decklink_producer_proxy()\r
 291         {               \r
 292                 executor_.invoke([=]\r
 293                 {\r
 294                         producer_.reset();\r
 295                         CoUninitialize();\r
 296                 });\r
 297         }\r
 298         \r
 299         // frame_producer\r
 300                                 \r
 301         virtual spl::shared_ptr<core::draw_frame> receive(int flags) override\r
 302         {\r
 303                 auto frame = producer_->get_frame(flags);\r
 304 \r
 305                 if(frame != core::draw_frame::late())\r
 306                         last_frame_ = frame;\r
 307 \r
 308                 return frame;\r
 309         }\r
 310 \r
 311         virtual spl::shared_ptr<core::draw_frame> last_frame() const override\r
 312         {\r
 313                 return core::draw_frame::still(last_frame_);\r
 314         }\r
 315                 \r
 316         virtual uint32_t nb_frames() const override\r
 317         {\r
 318                 return length_;\r
 319         }\r
 320         \r
 321         virtual std::wstring print() const override\r
 322         {\r
 323                 return producer_->print();\r
 324         }\r
 325         \r
 326         virtual std::wstring name() const override\r
 327         {\r
 328                 return L"decklink";\r
 329         }\r
 330 \r
 331         virtual boost::property_tree::wptree info() const override\r
 332         {\r
 333                 boost::property_tree::wptree info;\r
 334                 info.add(L"type", L"decklink");\r
 335                 return info;\r
 336         }\r
 337 };\r
 338 \r
 339 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 340 {\r
 341         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 342                 return core::frame_producer::empty();\r
 343 \r
 344         auto device_index       = get_param(L"DEVICE", params, -1);\r
 345         if(device_index == -1)\r
 346                 device_index = boost::lexical_cast<int>(params.at(1));\r
 347         \r
 348         auto filter_str         = get_param(L"FILTER", params);         \r
 349         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());   \r
 350         auto format_desc        = core::video_format_desc(get_param(L"FORMAT", params, L"INVALID"));\r
 351         \r
 352         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 353         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 354         \r
 355         if(format_desc.format == core::video_format::invalid)\r
 356                 format_desc = frame_factory->video_format_desc();\r
 357                         \r
 358         return core::wrap_producer(spl::make_shared<decklink_producer_proxy>(frame_factory, format_desc, device_index, filter_str, length));\r
 359 }\r
 360 \r
 361 }}