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/util/util.h"\r
  29 #include "../../ffmpeg/producer/muxer/frame_muxer.h"\r
  30 \r
  31 #include <common/concurrency/governor.h>\r
  32 #include <common/diagnostics/graph.h>\r
  33 #include <common/exception/exceptions.h>\r
  34 #include <common/log/log.h>\r
  35 #include <common/utility/co_init.h>\r
  36 \r
  37 #include <core/producer/frame/frame_factory.h>\r
  38 #include <core/producer/frame/basic_frame.h>\r
  39 \r
  40 #include <agents.h>\r
  41 \r
  42 #include <boost/algorithm/string.hpp>\r
  43 #include <boost/timer.hpp>\r
  44 \r
  45 #if defined(_MSC_VER)\r
  46 #pragma warning (push)\r
  47 #pragma warning (disable : 4244)\r
  48 #endif\r
  49 extern "C" \r
  50 {\r
  51         #define __STDC_CONSTANT_MACROS\r
  52         #define __STDC_LIMIT_MACROS\r
  53         #include <libavcodec/avcodec.h>\r
  54 }\r
  55 #if defined(_MSC_VER)\r
  56 #pragma warning (pop)\r
  57 #endif\r
  58 \r
  59 namespace caspar { namespace decklink {\r
  60                 \r
  61 class decklink_producer : public core::frame_producer, public IDeckLinkInputCallback\r
  62 {               \r
  63         safe_ptr<diagnostics::graph>                                                                                            graph_;\r
  64         \r
  65         const core::video_format_desc                                                                                           format_desc_;\r
  66         const size_t                                                                                                                            device_index_;\r
  67 \r
  68         safe_ptr<core::basic_frame>                                                                                                     last_frame_;\r
  69         const int64_t                                                                                                                           length_;\r
  70         int64_t                                                                                                                                         frame_number_;\r
  71         \r
  72         CComPtr<IDeckLink>                                                                                                                      decklink_;\r
  73         CComQIPtr<IDeckLinkInput>                                                                                                       input_;\r
  74 \r
  75         const std::wstring                                                                                                                      model_name_;\r
  76 \r
  77         Concurrency::unbounded_buffer<ffmpeg::frame_muxer2::video_source_element_t>     video_;\r
  78         Concurrency::unbounded_buffer<ffmpeg::frame_muxer2::audio_source_element_t>     audio_;\r
  79         Concurrency::unbounded_buffer<ffmpeg::frame_muxer2::target_element_t>           frames_;\r
  80                         \r
  81         ffmpeg::frame_muxer2                                                                                                            muxer_;\r
  82                 \r
  83         governor                                                                                                                                        governor_;\r
  84 \r
  85 public:\r
  86         decklink_producer(const co_init& com, const safe_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, size_t device_index, const std::wstring& filter_str, int64_t length)\r
  87                 : format_desc_(format_desc)\r
  88                 , device_index_(device_index)\r
  89                 , length_(length)\r
  90                 , frame_number_(0)\r
  91                 , decklink_(get_device(device_index))\r
  92                 , input_(decklink_)\r
  93                 , model_name_(get_model_name(decklink_))\r
  94                 , muxer_(&video_, &audio_, frames_, format_desc.fps, frame_factory, filter_str)\r
  95                 , governor_(1)\r
  96         {               \r
  97                 graph_->add_guide("tick-time", 0.5);\r
  98                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
  99                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 100                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 101                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 102                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 103                 graph_->set_text(narrow(print()));\r
 104                 diagnostics::register_graph(graph_);\r
 105                 \r
 106                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 107                 \r
 108                 Concurrency::scoped_oversubcription_token oversubscribe;\r
 109                 \r
 110                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 111                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 112                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 113                                                                         << msg_info(narrow(print()) + " Could not enable video input.")\r
 114                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 115 \r
 116                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, format_desc_.audio_channels))) \r
 117                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 118                                                                         << msg_info(narrow(print()) + " Could not enable audio input.")\r
 119                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 120                         \r
 121                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 122                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 123                                                                         << msg_info(narrow(print()) + " Failed to set input callback.")\r
 124                                                                         << boost::errinfo_api_function("SetCallback"));\r
 125                         \r
 126                 if(FAILED(input_->StartStreams()))\r
 127                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 128                                                                         << msg_info(narrow(print()) + " Failed to start input stream.")\r
 129                                                                         << boost::errinfo_api_function("StartStreams"));\r
 130 \r
 131                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";\r
 132         }\r
 133 \r
 134         ~decklink_producer()\r
 135         {\r
 136                 governor_.cancel();\r
 137                 \r
 138                 send(video_, ffmpeg::eof_video());\r
 139                 send(audio_, ffmpeg::eof_audio());\r
 140 \r
 141                 Concurrency::scoped_oversubcription_token oversubscribe;\r
 142                 if(input_ != nullptr) \r
 143                 {\r
 144                         input_->StopStreams();\r
 145                         input_->DisableVideoInput();\r
 146                 }\r
 147 \r
 148                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized.";\r
 149         }\r
 150 \r
 151         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 152         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 153         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 154                 \r
 155         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 156         {\r
 157                 return S_OK;\r
 158         }\r
 159 \r
 160         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* raw_video, IDeckLinkAudioInputPacket* raw_audio)\r
 161         {       \r
 162                 try\r
 163                 {\r
 164                         ticket_t ticket;\r
 165                         if(!governor_.try_acquire(ticket))\r
 166                         {\r
 167                                 graph_->add_tag("dropped-frame");\r
 168                                 return S_OK;\r
 169                         }\r
 170 \r
 171                         CComPtr<IDeckLinkVideoInputFrame>  video = raw_video;\r
 172                         CComPtr<IDeckLinkAudioInputPacket> audio = raw_audio;\r
 173 \r
 174                         void* bytes = nullptr;\r
 175 \r
 176                         if(!video || FAILED(video->GetBytes(&bytes)) || !bytes)\r
 177                                 return S_OK;\r
 178                         \r
 179                         safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 180                         avcodec_get_frame_defaults(av_frame.get());\r
 181                 \r
 182                         av_frame = safe_ptr<AVFrame>(av_frame.get(), [av_frame, video, ticket](AVFrame*){});\r
 183                                                                 \r
 184                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 185                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 186                         av_frame->format                        = PIX_FMT_UYVY422;\r
 187                         av_frame->width                         = video->GetWidth();\r
 188                         av_frame->height                        = video->GetHeight();\r
 189                         av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 190                         av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 191                                         \r
 192                         Concurrency::send(video_, av_frame);\r
 193 \r
 194                         // It is assumed that audio is always equal or ahead of video.\r
 195                         if(!audio || FAILED(audio->GetBytes(&bytes)) || !bytes)\r
 196                                 Concurrency::send(audio_, make_safe<core::audio_buffer>(format_desc_.audio_samples_per_frame, 0));      \r
 197                         else\r
 198                         {\r
 199                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 200                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 201                                 auto audio_buffer = make_safe<core::audio_buffer>(audio_data, audio_data + sample_frame_count*format_desc_.audio_channels);                     \r
 202                                 audio_buffer = safe_ptr<core::audio_buffer>(audio_buffer.get(), [audio_buffer, audio, ticket](core::audio_buffer*){});\r
 203                                 Concurrency::send(audio_, audio_buffer);\r
 204                         }\r
 205                 }\r
 206                 catch(...)\r
 207                 {\r
 208                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 209                         return E_FAIL;\r
 210                 }\r
 211                 \r
 212                 return S_OK;\r
 213         }\r
 214                 \r
 215         virtual safe_ptr<core::basic_frame> receive(int)\r
 216         {\r
 217                 auto frame = core::basic_frame::late();\r
 218 \r
 219                 try\r
 220                 {\r
 221                         if(frame_number_ > length_)\r
 222                                 return core::basic_frame::eof();\r
 223 \r
 224                         last_frame_ = frame = Concurrency::receive(frames_, 10).first;\r
 225                         ++frame_number_;\r
 226                 }\r
 227                 catch(Concurrency::operation_timed_out&)\r
 228                 {               \r
 229                         graph_->add_tag("underflow");   \r
 230                 }\r
 231 \r
 232                 return frame;\r
 233         }\r
 234 \r
 235         virtual safe_ptr<core::basic_frame> last_frame() const\r
 236         {\r
 237                 return disable_audio(last_frame_);\r
 238         }\r
 239         \r
 240         virtual int64_t nb_frames() const \r
 241         {\r
 242                 return length_;\r
 243         }\r
 244         \r
 245         virtual 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 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 252 {\r
 253         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 254                 return core::frame_producer::empty();\r
 255         \r
 256         std::vector<std::wstring> params2 = params;\r
 257         std::for_each(std::begin(params2), std::end(params2), std::bind(&boost::to_upper<std::wstring>, std::placeholders::_1, std::locale()));\r
 258 \r
 259         auto device_index       = core::get_param(L"DEVICE", params2, 1);\r
 260         auto filter_str         = core::get_param<std::wstring>(L"FILTER", params2, L"");       \r
 261         auto length                     = core::get_param(L"LENGTH", params2, std::numeric_limits<int64_t>::max());     \r
 262         \r
 263         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 264         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 265 \r
 266         auto format_desc        = core::video_format_desc::get(core::get_param<std::wstring>(L"FORMAT", params2, L"INVALID"));\r
 267 \r
 268         if(format_desc.format == core::video_format::invalid)\r
 269                 format_desc = frame_factory->get_video_format_desc();\r
 270                         \r
 271         co_init com;\r
 272         return make_safe<decklink_producer>(com, frame_factory, format_desc, device_index, filter_str, length);\r
 273 }\r
 274 \r
 275 }}