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 "../util/util.h"
  27
  28 #include "../../ffmpeg/producer/filter/filter.h"
  29 #include "../../ffmpeg/producer/util/util.h"
  30 #include "../../ffmpeg/producer/muxer/frame_muxer.h"
  31 #include "../../ffmpeg/producer/muxer/display_mode.h"
  32
  33 #include <common/executor.h>
  34 #include <common/diagnostics/graph.h>
  35 #include <common/except.h>
  36 #include <common/log.h>
  37 #include <common/param.h>
  38 #include <common/timer.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
  52 #if defined(_MSC_VER)
  53 #pragma warning (push)
  54 #pragma warning (disable : 4244)
  55 #endif
  56 extern "C"
  57 {
  58         #define __STDC_CONSTANT_MACROS
  59         #define __STDC_LIMIT_MACROS
  60         #include <libavcodec/avcodec.h>
  61 }
  62 #if defined(_MSC_VER)
  63 #pragma warning (pop)
  64 #endif
  65
  66 #include "../decklink_api.h"
  67
  68 #include <functional>
  69
  70 namespace caspar { namespace decklink {
  71
  72 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback
  73 {
  74         const int                                                                               device_index_;
  75         core::monitor::subject                                                  monitor_subject_;
  76         spl::shared_ptr<diagnostics::graph>                             graph_;
  77         caspar::timer                                                                   tick_timer_;
  78
  79         com_ptr<IDeckLink>                                                              decklink_                       = get_device(device_index_);
  80         com_iface_ptr<IDeckLinkInput>                                   input_                          = iface_cast<IDeckLinkInput>(decklink_);
  81         com_iface_ptr<IDeckLinkAttributes>                              attributes_                     = iface_cast<IDeckLinkAttributes>(decklink_);
  82
  83         const std::wstring                                                              model_name_                     = get_model_name(decklink_);
  84         const std::wstring                                                              filter_;
  85
  86         core::video_format_desc                                                 in_format_desc_;
  87         core::video_format_desc                                                 out_format_desc_;
  88         std::vector<int>                                                                audio_cadence_          = out_format_desc_.audio_cadence;
  89         boost::circular_buffer<size_t>                                  sync_buffer_            { audio_cadence_.size() };
  90         spl::shared_ptr<core::frame_factory>                    frame_factory_;
  91         ffmpeg::frame_muxer                                                             muxer_                          { in_format_desc_.fps, frame_factory_, out_format_desc_, filter_ };
  92
  93         core::constraints                                                               constraints_            { in_format_desc_.width, in_format_desc_.height };
  94
  95         tbb::concurrent_bounded_queue<core::draw_frame> frame_buffer_;
  96
  97         std::exception_ptr                                                              exception_;
  98
  99 public:
 100         decklink_producer(
 101                         const core::video_format_desc& in_format_desc,
 102                         int device_index,
 103                         const spl::shared_ptr<core::frame_factory>& frame_factory,
 104                         const core::video_format_desc& out_format_desc,
 105                         const std::wstring& filter)
 106                 : device_index_(device_index)
 107                 , filter_(filter)
 108                 , in_format_desc_(in_format_desc)
 109                 , out_format_desc_(out_format_desc)
 110                 , frame_factory_(frame_factory)
 111         {
 112                 frame_buffer_.set_capacity(2);
 113
 114                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
 115                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));
 116                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
 117                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
 118                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));
 119                 graph_->set_text(print());
 120                 diagnostics::register_graph(graph_);
 121
 122                 auto display_mode = get_display_mode(input_, in_format_desc.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);
 123
 124                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)
 125                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0)))
 126                         CASPAR_THROW_EXCEPTION(caspar_exception()
 127                                                                         << msg_info(print() + L" Could not enable video input.")
 128                                                                         << boost::errinfo_api_function("EnableVideoInput"));
 129
 130                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, static_cast<int>(in_format_desc.audio_channels))))
 131                         CASPAR_THROW_EXCEPTION(caspar_exception()
 132                                                                         << msg_info(print() + L" Could not enable audio input.")
 133                                                                         << boost::errinfo_api_function("EnableAudioInput"));
 134
 135                 if (FAILED(input_->SetCallback(this)) != S_OK)
 136                         CASPAR_THROW_EXCEPTION(caspar_exception()
 137                                                                         << msg_info(print() + L" Failed to set input callback.")
 138                                                                         << boost::errinfo_api_function("SetCallback"));
 139
 140                 if(FAILED(input_->StartStreams()))
 141                         CASPAR_THROW_EXCEPTION(caspar_exception()
 142                                                                         << msg_info(print() + L" Failed to start input stream.")
 143                                                                         << boost::errinfo_api_function("StartStreams"));
 144
 145                 CASPAR_LOG(info) << print() << L" Initialized";
 146         }
 147
 148         ~decklink_producer()
 149         {
 150                 if(input_ != nullptr)
 151                 {
 152                         input_->StopStreams();
 153                         input_->DisableVideoInput();
 154                 }
 155         }
 156
 157         core::constraints& pixel_constraints()
 158         {
 159                 return constraints_;
 160         }
 161
 162         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}
 163         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}
 164         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}
 165
 166         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)
 167         {
 168                 return S_OK;
 169         }
 170
 171         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)
 172         {
 173                 if(!video)
 174                         return S_OK;
 175
 176                 try
 177                 {
 178                         graph_->set_value("tick-time", tick_timer_.elapsed()*out_format_desc_.fps*0.5);
 179                         tick_timer_.restart();
 180
 181                         caspar::timer frame_timer;
 182
 183                         // Video
 184
 185                         void* video_bytes = nullptr;
 186                         if(FAILED(video->GetBytes(&video_bytes)) || !video_bytes)
 187                                 return S_OK;
 188
 189                         auto video_frame = ffmpeg::create_frame();
 190
 191                         video_frame->data[0]                    = reinterpret_cast<uint8_t*>(video_bytes);
 192                         video_frame->linesize[0]                = video->GetRowBytes();
 193                         video_frame->format                             = PIX_FMT_UYVY422;
 194                         video_frame->width                              = video->GetWidth();
 195                         video_frame->height                             = video->GetHeight();
 196                         video_frame->interlaced_frame   = in_format_desc_.field_mode != core::field_mode::progressive;
 197                         video_frame->top_field_first    = in_format_desc_.field_mode == core::field_mode::upper ? 1 : 0;
 198
 199                         monitor_subject_
 200                                         << core::monitor::message("/file/name")                                 % model_name_
 201                                         << core::monitor::message("/file/path")                                 % device_index_
 202                                         << core::monitor::message("/file/video/width")                  % video->GetWidth()
 203                                         << core::monitor::message("/file/video/height")                 % video->GetHeight()
 204                                         << core::monitor::message("/file/video/field")                  % u8(!video_frame->interlaced_frame ? "progressive" : (video_frame->top_field_first ? "upper" : "lower"))
 205                                         << core::monitor::message("/file/audio/sample-rate")    % 48000
 206                                         << core::monitor::message("/file/audio/channels")               % 2
 207                                         << core::monitor::message("/file/audio/format")                 % u8(av_get_sample_fmt_name(AV_SAMPLE_FMT_S32))
 208                                         << core::monitor::message("/file/fps")                                  % in_format_desc_.fps;
 209
 210                         // Audio
 211
 212                         void* audio_bytes = nullptr;
 213                         if(FAILED(audio->GetBytes(&audio_bytes)) || !audio_bytes)
 214                                 return S_OK;
 215
 216                         auto audio_frame = ffmpeg::create_frame();
 217
 218                         audio_frame->data[0]            = reinterpret_cast<uint8_t*>(audio_bytes);
 219                         audio_frame->linesize[0]        = audio->GetSampleFrameCount()*out_format_desc_.audio_channels*sizeof(int32_t);
 220                         audio_frame->nb_samples         = audio->GetSampleFrameCount();
 221                         audio_frame->format                     = AV_SAMPLE_FMT_S32;
 222
 223                         // Note: Uses 1 step rotated cadence for 1001 modes (1602, 1602, 1601, 1602, 1601)
 224                         // This cadence fills the audio mixer most optimally.
 225
 226                         sync_buffer_.push_back(audio->GetSampleFrameCount());
 227                         if(!boost::range::equal(sync_buffer_, audio_cadence_))
 228                         {
 229                                 CASPAR_LOG(trace) << print() << L" Syncing audio.";
 230                                 return S_OK;
 231                         }
 232                         boost::range::rotate(audio_cadence_, std::begin(audio_cadence_)+1);
 233
 234                         // PUSH
 235
 236                         muxer_.push_video(video_frame);
 237                         muxer_.push_audio(audio_frame);
 238
 239                         // POLL
 240
 241                         auto frame = core::draw_frame::late();
 242                         if(!muxer_.empty())
 243                         {
 244                                 frame = std::move(muxer_.front());
 245                                 muxer_.pop();
 246
 247                                 if(!frame_buffer_.try_push(frame))
 248                                 {
 249                                         auto dummy = core::draw_frame::empty();
 250                                         frame_buffer_.try_pop(dummy);
 251                                         frame_buffer_.try_push(frame);
 252
 253                                         graph_->set_tag("dropped-frame");
 254                                 }
 255                         }
 256
 257                         graph_->set_value("frame-time", frame_timer.elapsed()*out_format_desc_.fps*0.5);
 258                         monitor_subject_ << core::monitor::message("/profiler/time") % frame_timer.elapsed() % out_format_desc_.fps;
 259
 260                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 261                         monitor_subject_ << core::monitor::message("/buffer") % frame_buffer_.size() % frame_buffer_.capacity();
 262                 }
 263                 catch(...)
 264                 {
 265                         exception_ = std::current_exception();
 266                         return E_FAIL;
 267                 }
 268
 269                 return S_OK;
 270         }
 271
 272         core::draw_frame get_frame()
 273         {
 274                 if(exception_ != nullptr)
 275                         std::rethrow_exception(exception_);
 276
 277                 core::draw_frame frame = core::draw_frame::late();
 278                 if(!frame_buffer_.try_pop(frame))
 279                         graph_->set_tag("late-frame");
 280                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
 281                 return frame;
 282         }
 283
 284         std::wstring print() const
 285         {
 286                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"|" + in_format_desc_.name + L"]";
 287         }
 288
 289         core::monitor::subject& monitor_output()
 290         {
 291                 return monitor_subject_;
 292         }
 293 };
 294
 295 class decklink_producer_proxy : public core::frame_producer_base
 296 {
 297         std::unique_ptr<decklink_producer>      producer_;
 298         const uint32_t                                          length_;
 299         executor                                                        executor_;
 300 public:
 301         explicit decklink_producer_proxy(const core::video_format_desc& in_format_desc,
 302                                                                          const spl::shared_ptr<core::frame_factory>& frame_factory,
 303                                                                          const core::video_format_desc& out_format_desc,
 304                                                                          int device_index,
 305                                                                          const std::wstring& filter_str, uint32_t length)
 306                 : executor_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")
 307                 , length_(length)
 308         {
 309                 executor_.invoke([=]
 310                 {
 311                         com_initialize();
 312                         producer_.reset(new decklink_producer(in_format_desc, device_index, frame_factory, out_format_desc, filter_str));
 313                 });
 314         }
 315
 316         ~decklink_producer_proxy()
 317         {
 318                 executor_.invoke([=]
 319                 {
 320                         producer_.reset();
 321                         com_uninitialize();
 322                 });
 323         }
 324
 325         core::monitor::subject& monitor_output()
 326         {
 327                 return producer_->monitor_output();
 328         }
 329
 330         // frame_producer
 331
 332         core::draw_frame receive_impl() override
 333         {
 334                 return producer_->get_frame();
 335         }
 336
 337         core::constraints& pixel_constraints() override
 338         {
 339                 return producer_->pixel_constraints();
 340         }
 341
 342         uint32_t nb_frames() const override
 343         {
 344                 return length_;
 345         }
 346
 347         std::wstring print() const override
 348         {
 349                 return producer_->print();
 350         }
 351
 352         std::wstring name() const override
 353         {
 354                 return L"decklink";
 355         }
 356
 357         boost::property_tree::wptree info() const override
 358         {
 359                 boost::property_tree::wptree info;
 360                 info.add(L"type", L"decklink");
 361                 return info;
 362         }
 363 };
 364
 365 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)
 366 {
 367         if(params.empty() || !boost::iequals(params[0], "decklink"))
 368                 return core::frame_producer::empty();
 369
 370         auto device_index       = get_param(L"DEVICE", params, -1);
 371         if(device_index == -1)
 372                 device_index = boost::lexical_cast<int>(params.at(1));
 373
 374         auto filter_str         = get_param(L"FILTER", params);
 375         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());
 376         auto in_format_desc = core::video_format_desc(get_param(L"FORMAT", params, L"INVALID"));
 377
 378         if(in_format_desc.format == core::video_format::invalid)
 379                 in_format_desc = out_format_desc;
 380
 381         return create_destroy_proxy(spl::make_shared<decklink_producer_proxy>(in_format_desc, frame_factory, out_format_desc, device_index, filter_str, length));
 382 }
 383
 384 }}