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/property_tree/ptree.hpp>
  51 #include <boost/timer.hpp>
  52
  53 #if defined(_MSC_VER)
  54 #pragma warning (push)
  55 #pragma warning (disable : 4244)
  56 #endif
  57 extern "C"
  58 {
  59         #define __STDC_CONSTANT_MACROS
  60         #define __STDC_LIMIT_MACROS
  61         #include <libavcodec/avcodec.h>
  62 }
  63 #if defined(_MSC_VER)
  64 #pragma warning (pop)
  65 #endif
  66
  67 #pragma warning(push)
  68 #pragma warning(disable : 4996)
  69
  70         #include <atlbase.h>
  71
  72         #include <atlcom.h>
  73         #include <atlhost.h>
  74
  75 #pragma warning(push)
  76
  77 #include <functional>
  78
  79 namespace caspar { namespace decklink {
  80
  81 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback
  82 {
  83         core::monitor::subject                                                  monitor_subject_;
  84         spl::shared_ptr<diagnostics::graph>                             graph_;
  85         boost::timer                                                                    tick_timer_;
  86
  87         CComPtr<IDeckLink>                                                              decklink_;
  88         CComQIPtr<IDeckLinkInput>                                               input_;
  89         CComQIPtr<IDeckLinkAttributes >                                 attributes_;
  90
  91         const std::wstring                                                              model_name_;
  92         const int                                                                               device_index_;
  93         const std::wstring                                                              filter_;
  94
  95         std::vector<int>                                                                audio_cadence_;
  96         boost::circular_buffer<size_t>                                  sync_buffer_;
  97         ffmpeg::frame_muxer                                                             muxer_;
  98
  99         spl::shared_ptr<core::frame_factory>                    frame_factory_;
 100         core::video_format_desc                                                 in_format_desc_;
 101         core::video_format_desc                                                 out_format_desc_;
 102         core::constraints                                                               constraints_;
 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                 , constraints_(in_format_desc.width, in_format_desc.height)
 123                 , muxer_(in_format_desc.fps, frame_factory, out_format_desc, filter)
 124                 , audio_cadence_(out_format_desc.audio_cadence)
 125                 , sync_buffer_(out_format_desc.audio_cadence.size())
 126                 , frame_factory_(frame_factory)
 127         {
 128                 frame_buffer_.set_capacity(2);
 129
 130                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
 131                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));
 132                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
 133                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
 134                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));
 135                 graph_->set_text(print());
 136                 diagnostics::register_graph(graph_);
 137
 138                 auto display_mode = get_display_mode(input_, in_format_desc.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);
 139
 140                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)
 141                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0)))
 142                         CASPAR_THROW_EXCEPTION(caspar_exception()
 143                                                                         << msg_info(print() + L" Could not enable video input.")
 144                                                                         << boost::errinfo_api_function("EnableVideoInput"));
 145
 146                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, static_cast<int>(in_format_desc.audio_channels))))
 147                         CASPAR_THROW_EXCEPTION(caspar_exception()
 148                                                                         << msg_info(print() + L" Could not enable audio input.")
 149                                                                         << boost::errinfo_api_function("EnableAudioInput"));
 150
 151                 if (FAILED(input_->SetCallback(this)) != S_OK)
 152                         CASPAR_THROW_EXCEPTION(caspar_exception()
 153                                                                         << msg_info(print() + L" Failed to set input callback.")
 154                                                                         << boost::errinfo_api_function("SetCallback"));
 155
 156                 if(FAILED(input_->StartStreams()))
 157                         CASPAR_THROW_EXCEPTION(caspar_exception()
 158                                                                         << msg_info(print() + L" Failed to start input stream.")
 159                                                                         << boost::errinfo_api_function("StartStreams"));
 160
 161                 CASPAR_LOG(info) << print() << L" Initialized";
 162         }
 163
 164         ~decklink_producer()
 165         {
 166                 if(input_ != nullptr)
 167                 {
 168                         input_->StopStreams();
 169                         input_->DisableVideoInput();
 170                 }
 171         }
 172
 173         core::constraints& pixel_constraints()
 174         {
 175                 return constraints_;
 176         }
 177
 178         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}
 179         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}
 180         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}
 181
 182         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)
 183         {
 184                 return S_OK;
 185         }
 186
 187         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)
 188         {
 189                 if(!video)
 190                         return S_OK;
 191
 192                 try
 193                 {
 194                         graph_->set_value("tick-time", tick_timer_.elapsed()*out_format_desc_.fps*0.5);
 195                         tick_timer_.restart();
 196
 197                         boost::timer frame_timer;
 198
 199                         // Video
 200
 201                         void* video_bytes = nullptr;
 202                         if(FAILED(video->GetBytes(&video_bytes)) || !video_bytes)
 203                                 return S_OK;
 204
 205                         auto video_frame = ffmpeg::create_frame();
 206
 207                         video_frame->data[0]                    = reinterpret_cast<uint8_t*>(video_bytes);
 208                         video_frame->linesize[0]                = video->GetRowBytes();
 209                         video_frame->format                             = PIX_FMT_UYVY422;
 210                         video_frame->width                              = video->GetWidth();
 211                         video_frame->height                             = video->GetHeight();
 212                         video_frame->interlaced_frame   = in_format_desc_.field_mode != core::field_mode::progressive;
 213                         video_frame->top_field_first    = in_format_desc_.field_mode == core::field_mode::upper ? 1 : 0;
 214
 215                         monitor_subject_
 216                                         << core::monitor::message("/file/name")                                 % model_name_
 217                                         << core::monitor::message("/file/path")                                 % device_index_
 218                                         << core::monitor::message("/file/video/width")                  % video->GetWidth()
 219                                         << core::monitor::message("/file/video/height")                 % video->GetHeight()
 220                                         << core::monitor::message("/file/video/field")                  % u8(!video_frame->interlaced_frame ? "progressive" : (video_frame->top_field_first ? "upper" : "lower"))
 221                                         << core::monitor::message("/file/audio/sample-rate")    % 48000
 222                                         << core::monitor::message("/file/audio/channels")               % 2
 223                                         << core::monitor::message("/file/audio/format")                 % u8(av_get_sample_fmt_name(AV_SAMPLE_FMT_S32))
 224                                         << core::monitor::message("/file/fps")                                  % in_format_desc_.fps;
 225
 226                         // Audio
 227
 228                         void* audio_bytes = nullptr;
 229                         if(FAILED(audio->GetBytes(&audio_bytes)) || !audio_bytes)
 230                                 return S_OK;
 231
 232                         auto audio_frame = ffmpeg::create_frame();
 233
 234                         audio_frame->data[0]            = reinterpret_cast<uint8_t*>(audio_bytes);
 235                         audio_frame->linesize[0]        = audio->GetSampleFrameCount()*out_format_desc_.audio_channels*sizeof(int32_t);
 236                         audio_frame->nb_samples         = audio->GetSampleFrameCount();
 237                         audio_frame->format                     = AV_SAMPLE_FMT_S32;
 238
 239                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)
 240                         // This cadence fills the audio mixer most optimally.
 241
 242                         sync_buffer_.push_back(audio->GetSampleFrameCount());
 243                         if(!boost::range::equal(sync_buffer_, audio_cadence_))
 244                         {
 245                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";
 246                                 return S_OK;
 247                         }
 248                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);
 249
 250                         // PUSH
 251
 252                         muxer_.push_video(video_frame);
 253                         muxer_.push_audio(audio_frame);
 254
 255                         // POLL
 256
 257                         auto frame = core::draw_frame::late();
 258                         if(!muxer_.empty())
 259                         {
 260                                 frame = std::move(muxer_.front());
 261                                 muxer_.pop();
 262
 263                                 if(!frame_buffer_.try_push(frame))
 264                                 {
 265                                         auto dummy = core::draw_frame::empty();
 266                                         frame_buffer_.try_pop(dummy);
 267                                         frame_buffer_.try_push(frame);
 268
 269                                         graph_->set_tag("dropped-frame");
 270                                 }
 271                         }
 272
 273                         graph_->set_value("frame-time", frame_timer.elapsed()*out_format_desc_.fps*0.5);
 274                         monitor_subject_ << core::monitor::message("/profiler/time") % frame_timer.elapsed() % out_format_desc_.fps;
 275
 276                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 277                         monitor_subject_ << core::monitor::message("/buffer") % frame_buffer_.size() % frame_buffer_.capacity();
 278                 }
 279                 catch(...)
 280                 {
 281                         exception_ = std::current_exception();
 282                         return E_FAIL;
 283                 }
 284
 285                 return S_OK;
 286         }
 287
 288         core::draw_frame get_frame()
 289         {
 290                 if(exception_ != nullptr)
 291                         std::rethrow_exception(exception_);
 292
 293                 core::draw_frame frame = core::draw_frame::late();
 294                 if(!frame_buffer_.try_pop(frame))
 295                         graph_->set_tag("late-frame");
 296                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 297                 return frame;
 298         }
 299
 300         std::wstring print() const
 301         {
 302                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + in_format_desc_.name + L"]";
 303         }
 304
 305         core::monitor::subject& monitor_output()
 306         {
 307                 return monitor_subject_;
 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         core::monitor::subject& monitor_output()
 342         {
 343                 return producer_->monitor_output();
 344         }
 345
 346         // frame_producer
 347
 348         core::draw_frame receive_impl() override
 349         {
 350                 return producer_->get_frame();
 351         }
 352
 353         core::constraints& pixel_constraints() override
 354         {
 355                 return producer_->pixel_constraints();
 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 }}