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

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "../stdafx.h"
  23
  24 #include "decklink_producer.h"
  25
  26 #include "../interop/DeckLinkAPI_h.h"
  27 #include "../util/util.h"
  28
  29 #include "../../ffmpeg/producer/filter/filter.h"
  30 #include "../../ffmpeg/producer/util/util.h"
  31 #include "../../ffmpeg/producer/muxer/frame_muxer.h"
  32 #include "../../ffmpeg/producer/muxer/display_mode.h"
  33
  34 #include <common/executor.h>
  35 #include <common/diagnostics/graph.h>
  36 #include <common/except.h>
  37 #include <common/log.h>
  38 #include <common/param.h>
  39
  40 #include <core/frame/frame.h>
  41 #include <core/frame/draw_frame.h>
  42 #include <core/frame/frame_transform.h>
  43 #include <core/frame/frame_factory.h>
  44 #include <core/monitor/monitor.h>
  45 #include <core/mixer/audio/audio_mixer.h>
  46
  47 #include <tbb/concurrent_queue.h>
  48
  49 #include <boost/algorithm/string.hpp>
  50 #include <boost/foreach.hpp>
  51 #include <boost/property_tree/ptree.hpp>
  52 #include <boost/timer.hpp>
  53
  54 #if defined(_MSC_VER)
  55 #pragma warning (push)
  56 #pragma warning (disable : 4244)
  57 #endif
  58 extern "C"
  59 {
  60         #define __STDC_CONSTANT_MACROS
  61         #define __STDC_LIMIT_MACROS
  62         #include <libavcodec/avcodec.h>
  63 }
  64 #if defined(_MSC_VER)
  65 #pragma warning (pop)
  66 #endif
  67
  68 #pragma warning(push)
  69 #pragma warning(disable : 4996)
  70
  71         #include <atlbase.h>
  72
  73         #include <atlcom.h>
  74         #include <atlhost.h>
  75
  76 #pragma warning(push)
  77
  78 #include <functional>
  79
  80 namespace caspar { namespace decklink {
  81
  82 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback
  83 {
  84         monitor::basic_subject                                                  event_subject_;
  85         spl::shared_ptr<diagnostics::graph>                             graph_;
  86         boost::timer                                                                    tick_timer_;
  87
  88         CComPtr<IDeckLink>                                                              decklink_;
  89         CComQIPtr<IDeckLinkInput>                                               input_;
  90         CComQIPtr<IDeckLinkAttributes >                                 attributes_;
  91
  92         const std::wstring                                                              model_name_;
  93         const int                                                                               device_index_;
  94         const std::wstring                                                              filter_;
  95
  96         std::vector<int>                                                                audio_cadence_;
  97         boost::circular_buffer<size_t>                                  sync_buffer_;
  98         ffmpeg::frame_muxer                                                             muxer_;
  99
 100         spl::shared_ptr<core::frame_factory>                    frame_factory_;
 101         core::video_format_desc                                                 in_format_desc_;
 102         core::video_format_desc                                                 out_format_desc_;
 103
 104         tbb::concurrent_bounded_queue<core::draw_frame> frame_buffer_;
 105
 106         std::exception_ptr                                                              exception_;
 107
 108 public:
 109         decklink_producer(const core::video_format_desc& in_format_desc,
 110                                           int device_index,
 111                                           const spl::shared_ptr<core::frame_factory>& frame_factory,
 112                                           const core::video_format_desc& out_format_desc,
 113                                           const std::wstring& filter)
 114                 : decklink_(get_device(device_index))
 115                 , input_(decklink_)
 116                 , attributes_(decklink_)
 117                 , model_name_(get_model_name(decklink_))
 118                 , device_index_(device_index)
 119                 , filter_(filter)
 120                 , in_format_desc_(in_format_desc)
 121                 , out_format_desc_(out_format_desc)
 122                 , muxer_(in_format_desc.fps, frame_factory, out_format_desc, filter)
 123                 , audio_cadence_(out_format_desc.audio_cadence)
 124                 , sync_buffer_(out_format_desc.audio_cadence.size())
 125                 , frame_factory_(frame_factory)
 126         {
 127                 frame_buffer_.set_capacity(2);
 128
 129                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
 130                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));
 131                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
 132                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
 133                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));
 134                 graph_->set_text(print());
 135                 diagnostics::register_graph(graph_);
 136
 137                 auto display_mode = get_display_mode(input_, in_format_desc.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);
 138
 139                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)
 140                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0)))
 141                         CASPAR_THROW_EXCEPTION(caspar_exception()
 142                                                                         << msg_info(print() + L" Could not enable video input.")
 143                                                                         << boost::errinfo_api_function("EnableVideoInput"));
 144
 145                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, static_cast<int>(in_format_desc.audio_channels))))
 146                         CASPAR_THROW_EXCEPTION(caspar_exception()
 147                                                                         << msg_info(print() + L" Could not enable audio input.")
 148                                                                         << boost::errinfo_api_function("EnableAudioInput"));
 149
 150                 if (FAILED(input_->SetCallback(this)) != S_OK)
 151                         CASPAR_THROW_EXCEPTION(caspar_exception()
 152                                                                         << msg_info(print() + L" Failed to set input callback.")
 153                                                                         << boost::errinfo_api_function("SetCallback"));
 154
 155                 if(FAILED(input_->StartStreams()))
 156                         CASPAR_THROW_EXCEPTION(caspar_exception()
 157                                                                         << msg_info(print() + L" Failed to start input stream.")
 158                                                                         << boost::errinfo_api_function("StartStreams"));
 159
 160                 CASPAR_LOG(info) << print() << L" Initialized";
 161         }
 162
 163         ~decklink_producer()
 164         {
 165                 if(input_ != nullptr)
 166                 {
 167                         input_->StopStreams();
 168                         input_->DisableVideoInput();
 169                 }
 170         }
 171
 172         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}
 173         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}
 174         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}
 175
 176         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)
 177         {
 178                 return S_OK;
 179         }
 180
 181         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)
 182         {
 183                 if(!video)
 184                         return S_OK;
 185
 186                 try
 187                 {
 188                         graph_->set_value("tick-time", tick_timer_.elapsed()*out_format_desc_.fps*0.5);
 189                         tick_timer_.restart();
 190
 191                         boost::timer frame_timer;
 192
 193                         // Video
 194
 195                         void* video_bytes = nullptr;
 196                         if(FAILED(video->GetBytes(&video_bytes)) || !video_bytes)
 197                                 return S_OK;
 198
 199                         auto video_frame = ffmpeg::create_frame();
 200
 201                         video_frame->data[0]                    = reinterpret_cast<uint8_t*>(video_bytes);
 202                         video_frame->linesize[0]                = video->GetRowBytes();
 203                         video_frame->format                             = PIX_FMT_UYVY422;
 204                         video_frame->width                              = video->GetWidth();
 205                         video_frame->height                             = video->GetHeight();
 206                         video_frame->interlaced_frame   = in_format_desc_.field_mode != core::field_mode::progressive;
 207                         video_frame->top_field_first    = in_format_desc_.field_mode == core::field_mode::upper ? 1 : 0;
 208
 209                         event_subject_  << monitor::event("file/name")                          % model_name_
 210                                                         << monitor::event("file/path")                          % device_index_
 211                                                         << monitor::event("file/video/width")           % video->GetWidth()
 212                                                         << monitor::event("file/video/height")          % video->GetHeight()
 213                                                         << monitor::event("file/video/field")           % u8(!video_frame->interlaced_frame ? "progressive" : (video_frame->top_field_first ? "upper" : "lower"))
 214                                                         << monitor::event("file/audio/sample-rate")     % 48000
 215                                                         << monitor::event("file/audio/channels")        % 2
 216                                                         << monitor::event("file/audio/format")          % u8(av_get_sample_fmt_name(AV_SAMPLE_FMT_S32))
 217                                                         << monitor::event("file/fps")                           % in_format_desc_.fps;
 218
 219                         // Audio
 220
 221                         std::shared_ptr<core::audio_buffer> audio_buffer;
 222
 223                         void* audio_bytes = nullptr;
 224                         if(FAILED(audio->GetBytes(&audio_bytes)) || !audio_bytes)
 225                                 return S_OK;
 226
 227                         auto audio_frame = ffmpeg::create_frame();
 228
 229                         audio_frame->data[0]            = reinterpret_cast<uint8_t*>(audio_bytes);
 230                         audio_frame->linesize[0]        = audio->GetSampleFrameCount()*out_format_desc_.audio_channels*sizeof(int32_t);
 231                         audio_frame->nb_samples         = audio->GetSampleFrameCount();
 232                         audio_frame->format                     = AV_SAMPLE_FMT_S32;
 233
 234                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)
 235                         // This cadence fills the audio mixer most optimally.
 236
 237                         sync_buffer_.push_back(audio->GetSampleFrameCount()*out_format_desc_.audio_channels);
 238                         if(!boost::range::equal(sync_buffer_, audio_cadence_))
 239                         {
 240                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";
 241                                 return S_OK;
 242                         }
 243                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);
 244
 245                         // PUSH
 246
 247                         muxer_.push_video(video_frame);
 248                         muxer_.push_audio(audio_frame);
 249
 250                         // POLL
 251
 252                         auto frame = core::draw_frame::late();
 253                         if(!muxer_.empty())
 254                         {
 255                                 frame = std::move(muxer_.front());
 256                                 muxer_.pop();
 257
 258                                 if(!frame_buffer_.try_push(frame))
 259                                 {
 260                                         auto dummy = core::draw_frame::empty();
 261                                         frame_buffer_.try_pop(dummy);
 262                                         frame_buffer_.try_push(frame);
 263
 264                                         graph_->set_tag("dropped-frame");
 265                                 }
 266                         }
 267
 268                         graph_->set_value("frame-time", frame_timer.elapsed()*out_format_desc_.fps*0.5);
 269                         event_subject_ << monitor::event("profiler/time") % frame_timer.elapsed() % out_format_desc_.fps;
 270
 271                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 272                         event_subject_ << monitor::event("buffer") % frame_buffer_.size() % frame_buffer_.capacity();
 273                 }
 274                 catch(...)
 275                 {
 276                         exception_ = std::current_exception();
 277                         return E_FAIL;
 278                 }
 279
 280                 return S_OK;
 281         }
 282
 283         core::draw_frame get_frame()
 284         {
 285                 if(exception_ != nullptr)
 286                         std::rethrow_exception(exception_);
 287
 288                 core::draw_frame frame = core::draw_frame::late();
 289                 if(!frame_buffer_.try_pop(frame))
 290                         graph_->set_tag("late-frame");
 291                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 292                 return frame;
 293         }
 294
 295         std::wstring print() const
 296         {
 297                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + in_format_desc_.name + L"]";
 298         }
 299
 300         void subscribe(const monitor::observable::observer_ptr& o)
 301         {
 302                 event_subject_.subscribe(o);
 303         }
 304
 305         void unsubscribe(const monitor::observable::observer_ptr& o)
 306         {
 307                 event_subject_.unsubscribe(o);
 308         }
 309 };
 310
 311 class decklink_producer_proxy : public core::frame_producer_base
 312 {
 313         std::unique_ptr<decklink_producer>      producer_;
 314         const uint32_t                                          length_;
 315         executor                                                        executor_;
 316 public:
 317         explicit decklink_producer_proxy(const core::video_format_desc& in_format_desc,
 318                                                                          const spl::shared_ptr<core::frame_factory>& frame_factory,
 319                                                                          const core::video_format_desc& out_format_desc,
 320                                                                          int device_index,
 321                                                                          const std::wstring& filter_str, uint32_t length)
 322                 : executor_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")
 323                 , length_(length)
 324         {
 325                 executor_.invoke([=]
 326                 {
 327                         CoInitialize(nullptr);
 328                         producer_.reset(new decklink_producer(in_format_desc, device_index, frame_factory, out_format_desc, filter_str));
 329                 });
 330         }
 331
 332         ~decklink_producer_proxy()
 333         {
 334                 executor_.invoke([=]
 335                 {
 336                         producer_.reset();
 337                         CoUninitialize();
 338                 });
 339         }
 340
 341         void subscribe(const monitor::observable::observer_ptr& o) override
 342         {
 343                 producer_->subscribe(o);
 344         }
 345
 346         void unsubscribe(const monitor::observable::observer_ptr& o) override
 347         {
 348                 producer_->unsubscribe(o);
 349         }
 350
 351         // frame_producer
 352
 353         core::draw_frame receive_impl() override
 354         {
 355                 return producer_->get_frame();
 356         }
 357
 358         uint32_t nb_frames() const override
 359         {
 360                 return length_;
 361         }
 362
 363         std::wstring print() const override
 364         {
 365                 return producer_->print();
 366         }
 367
 368         std::wstring name() const override
 369         {
 370                 return L"decklink";
 371         }
 372
 373         boost::property_tree::wptree info() const override
 374         {
 375                 boost::property_tree::wptree info;
 376                 info.add(L"type", L"decklink");
 377                 return info;
 378         }
 379 };
 380
 381 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& out_format_desc, const std::vector<std::wstring>& params)
 382 {
 383         if(params.empty() || !boost::iequals(params[0], "decklink"))
 384                 return core::frame_producer::empty();
 385
 386         auto device_index       = get_param(L"DEVICE", params, -1);
 387         if(device_index == -1)
 388                 device_index = boost::lexical_cast<int>(params.at(1));
 389
 390         auto filter_str         = get_param(L"FILTER", params);
 391         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());
 392         auto in_format_desc = core::video_format_desc(get_param(L"FORMAT", params, L"INVALID"));
 393
 394         if(in_format_desc.format == core::video_format::invalid)
 395                 in_format_desc = out_format_desc;
 396
 397         return create_destroy_proxy(spl::make_shared<decklink_producer_proxy>(in_format_desc, frame_factory, out_format_desc, device_index, filter_str, length));
 398 }
 399
 400 }}