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