2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
\r
4 * This file is part of CasparCG.
\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
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
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
21 #include "../stdafx.h"
\r
23 #include "decklink_producer.h"
\r
25 #include "../interop/DeckLinkAPI_h.h"
\r
26 #include "../util/util.h"
\r
28 #include <common/diagnostics/graph.h>
\r
29 #include <common/concurrency/com_context.h>
\r
30 #include <common/exception/exceptions.h>
\r
31 #include <common/memory/memclr.h>
\r
33 #include <core/producer/frame/frame_factory.h>
\r
34 #include <core/mixer/write_frame.h>
\r
36 #include <tbb/concurrent_queue.h>
\r
37 #include <tbb/atomic.h>
\r
39 #include <boost/algorithm/string.hpp>
\r
40 #include <boost/timer.hpp>
\r
42 #pragma warning(push)
\r
43 #pragma warning(disable : 4996)
\r
45 #include <atlbase.h>
\r
48 #include <atlhost.h>
\r
50 #pragma warning(push)
\r
52 #include <functional>
\r
56 class decklink_producer : public IDeckLinkInputCallback
\r
58 CComPtr<IDeckLink> decklink_;
\r
59 CComQIPtr<IDeckLinkInput> input_;
\r
61 const std::wstring model_name_;
\r
62 const core::video_format_desc format_desc_;
\r
63 const size_t device_index_;
\r
65 std::shared_ptr<diagnostics::graph> graph_;
\r
66 boost::timer perf_timer_;
\r
68 std::vector<short> audio_data_;
\r
70 std::shared_ptr<core::frame_factory> frame_factory_;
\r
72 tbb::concurrent_bounded_queue<safe_ptr<core::basic_frame>> frame_buffer_;
\r
73 safe_ptr<core::basic_frame> tail_;
\r
75 std::exception_ptr exception_;
\r
78 decklink_producer(const core::video_format_desc& format_desc, size_t device_index, const std::shared_ptr<core::frame_factory>& frame_factory)
\r
79 : decklink_(get_device(device_index))
\r
81 , model_name_(get_model_name(decklink_))
\r
82 , format_desc_(format_desc)
\r
83 , device_index_(device_index)
\r
84 , frame_factory_(frame_factory)
\r
85 , tail_(core::basic_frame::empty())
\r
87 frame_buffer_.set_capacity(2);
\r
89 graph_ = diagnostics::create_graph(boost::bind(&decklink_producer::print, this));
\r
90 graph_->add_guide("tick-time", 0.5);
\r
91 graph_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));
\r
92 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));
\r
93 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));
\r
94 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));
\r
96 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);
\r
98 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)
\r
99 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0)))
\r
100 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info(narrow(print()) + " Could not enable video input."));
\r
102 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, 2)))
\r
103 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info(narrow(print()) + " Could not enable audio input."));
\r
105 if (FAILED(input_->SetCallback(this)) != S_OK)
\r
106 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info(narrow(print()) + " Failed to set input callback."));
\r
108 if(FAILED(input_->StartStreams()))
\r
109 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info(narrow(print()) + " Failed to start input stream."));
\r
111 CASPAR_LOG(info) << print() << L" Successfully Initialized.";
\r
114 ~decklink_producer()
\r
116 if(input_ != nullptr)
\r
118 input_->StopStreams();
\r
119 input_->DisableVideoInput();
\r
123 virtual HRESULT STDMETHODCALLTYPE QueryInterface (REFIID, LPVOID*) {return E_NOINTERFACE;}
\r
124 virtual ULONG STDMETHODCALLTYPE AddRef () {return 1;}
\r
125 virtual ULONG STDMETHODCALLTYPE Release () {return 1;}
\r
127 virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)
\r
132 virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)
\r
136 graph_->update_value("tick-time", perf_timer_.elapsed()*format_desc_.fps*0.5);
\r
137 perf_timer_.restart();
\r
139 core::pixel_format_desc desc;
\r
140 desc.pix_fmt = core::pixel_format::ycbcr;
\r
141 desc.planes.push_back(core::pixel_format_desc::plane(format_desc_.width, format_desc_.height, 1));
\r
142 desc.planes.push_back(core::pixel_format_desc::plane(format_desc_.width/2, format_desc_.height, 1));
\r
143 desc.planes.push_back(core::pixel_format_desc::plane(format_desc_.width/2, format_desc_.height, 1));
\r
144 auto frame = frame_factory_->create_frame(this, desc);
\r
146 void* bytes = nullptr;
\r
147 video->GetBytes(&bytes);
\r
148 unsigned char* data = reinterpret_cast<unsigned char*>(bytes);
\r
149 const size_t frame_size = (format_desc_.width * 16 / 8) * format_desc_.height;
\r
151 // Convert to planar YUV422
\r
152 unsigned char* y = frame->image_data(0).begin();
\r
153 unsigned char* cb = frame->image_data(1).begin();
\r
154 unsigned char* cr = frame->image_data(2).begin();
\r
156 tbb::parallel_for(tbb::blocked_range<size_t>(0, frame_size/4), [&](const tbb::blocked_range<size_t>& r)
\r
158 for(auto n = r.begin(); n != r.end(); ++n)
\r
160 cb[n] = data[n*4+0];
\r
161 y [n*2+0] = data[n*4+1];
\r
162 cr[n] = data[n*4+2];
\r
163 y [n*2+1] = data[n*4+3];
\r
169 // It is assumed that audio is always equal or ahead of video.
\r
170 if(audio && SUCCEEDED(audio->GetBytes(&bytes)))
\r
172 const size_t audio_samples = static_cast<size_t>(48000.0 / format_desc_.fps);
\r
173 const size_t audio_nchannels = 2;
\r
175 auto sample_frame_count = audio->GetSampleFrameCount();
\r
176 auto audio_data = reinterpret_cast<short*>(bytes);
\r
177 audio_data_.insert(audio_data_.end(), audio_data, audio_data + sample_frame_count*2);
\r
179 if(audio_data_.size() > audio_samples*audio_nchannels)
\r
181 frame->audio_data() = std::vector<short>(audio_data_.begin(), audio_data_.begin() + audio_samples*audio_nchannels);
\r
182 audio_data_.erase(audio_data_.begin(), audio_data_.begin() + audio_samples*audio_nchannels);
\r
186 if(!frame_buffer_.try_push(frame))
\r
187 graph_->add_tag("dropped-frame");
\r
188 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
\r
192 exception_ = std::current_exception();
\r
199 safe_ptr<core::basic_frame> get_frame()
\r
201 if(exception_ != nullptr)
\r
202 std::rethrow_exception(exception_);
\r
204 if(!frame_buffer_.try_pop(tail_))
\r
205 graph_->add_tag("late-frame");
\r
206 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));
\r
210 std::wstring print() const
\r
212 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"]";
\r
216 class decklink_producer_proxy : public core::frame_producer
\r
218 com_context<decklink_producer> context_;
\r
221 explicit decklink_producer_proxy(const safe_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, size_t device_index)
\r
222 : context_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")
\r
224 context_.reset([&]{return new decklink_producer(format_desc, device_index, frame_factory);});
\r
227 virtual safe_ptr<core::basic_frame> receive()
\r
229 return context_->get_frame();
\r
232 std::wstring print() const
\r
234 return context_->print();
\r
238 safe_ptr<core::frame_producer> create_decklink_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)
\r
240 if(params.empty() || !boost::iequals(params[0], "decklink"))
\r
241 return core::frame_producer::empty();
\r
243 size_t device_index = 1;
\r
244 if(params.size() > 1)
\r
245 device_index = lexical_cast_or_default(params[1], 1);
\r
247 core::video_format_desc format_desc = core::video_format_desc::get(L"PAL");
\r
248 if(params.size() > 2)
\r
250 auto desc = core::video_format_desc::get(params[2]);
\r
251 if(desc.format != core::video_format::invalid)
\r
252 format_desc = desc;
\r
255 return make_safe<decklink_producer_proxy>(frame_factory, format_desc, device_index);
\r