2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
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.
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.
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/>.
19 * Author: Robert Nagy, ronag89@gmail.com
22 #include "../StdAfx.h"
25 #pragma warning (disable : 4244)
30 #include "frame_consumer.h"
33 #include "../video_format.h"
34 #include "../frame/frame.h"
36 #include <common/assert.h>
37 #include <common/future.h>
38 #include <common/executor.h>
39 #include <common/diagnostics/graph.h>
40 #include <common/prec_timer.h>
41 #include <common/memshfl.h>
42 #include <common/env.h>
43 #include <common/linq.h>
44 #include <common/timer.h>
46 #include <boost/circular_buffer.hpp>
47 #include <boost/lexical_cast.hpp>
48 #include <boost/property_tree/ptree.hpp>
52 namespace caspar { namespace core {
56 spl::shared_ptr<diagnostics::graph> graph_;
57 spl::shared_ptr<monitor::subject> monitor_subject_ = spl::make_shared<monitor::subject>("/output");
58 const int channel_index_;
59 video_format_desc format_desc_;
60 std::map<int, port> ports_;
61 prec_timer sync_timer_;
62 boost::circular_buffer<const_frame> frames_;
63 std::map<int, int64_t> send_to_consumers_delays_;
64 executor executor_ { L"output " + boost::lexical_cast<std::wstring>(channel_index_) };
66 impl(spl::shared_ptr<diagnostics::graph> graph, const video_format_desc& format_desc, int channel_index)
67 : graph_(std::move(graph))
68 , channel_index_(channel_index)
69 , format_desc_(format_desc)
71 graph_->set_color("consume-time", diagnostics::color(1.0f, 0.4f, 0.0f, 0.8f));
74 void add(int index, spl::shared_ptr<frame_consumer> consumer)
78 consumer->initialize(format_desc_, channel_index_);
80 executor_.begin_invoke([this, index, consumer]
82 port p(index, channel_index_, std::move(consumer));
83 p.monitor_output().attach_parent(monitor_subject_);
84 ports_.insert(std::make_pair(index, std::move(p)));
85 }, task_priority::high_priority);
88 void add(const spl::shared_ptr<frame_consumer>& consumer)
90 add(consumer->index(), consumer);
93 void remove(int index)
95 executor_.begin_invoke([=]
97 auto it = ports_.find(index);
98 if (it != ports_.end())
101 send_to_consumers_delays_.erase(index);
103 }, task_priority::high_priority);
106 void remove(const spl::shared_ptr<frame_consumer>& consumer)
108 remove(consumer->index());
111 void set_video_format_desc(const core::video_format_desc& format_desc)
115 if(format_desc_ == format_desc)
118 auto it = ports_.begin();
119 while(it != ports_.end())
123 it->second.video_format_desc(format_desc);
128 CASPAR_LOG_CURRENT_EXCEPTION();
129 send_to_consumers_delays_.erase(it->first);
134 format_desc_ = format_desc;
139 std::pair<int, int> minmax_buffer_depth() const
142 return std::make_pair(0, 0);
144 return cpplinq::from(ports_)
146 .select(std::mem_fn(&port::buffer_depth))
147 .where([](int v) { return v >= 0; })
148 .aggregate(minmax::initial_value<int>(), minmax());
151 bool has_synchronization_clock() const
153 return cpplinq::from(ports_)
155 .where(std::mem_fn(&port::has_synchronization_clock))
159 void operator()(const_frame input_frame, const core::video_format_desc& format_desc)
161 caspar::timer frame_timer;
163 set_video_format_desc(format_desc);
167 if(!has_synchronization_clock())
168 sync_timer_.tick(1.0/format_desc_.fps);
170 if(input_frame.size() != format_desc_.size)
172 CASPAR_LOG(debug) << print() << L" Invalid input frame dimension.";
176 auto minmax = minmax_buffer_depth();
178 frames_.set_capacity(std::max(2, minmax.second - minmax.first) + 1); // std::max(2, x) since we want to guarantee some pipeline depth for asycnhronous mixer read-back.
179 frames_.push_back(input_frame);
184 std::map<int, std::future<bool>> send_results;
187 for (auto it = ports_.begin(); it != ports_.end();)
189 auto& port = it->second;
190 auto depth = port.buffer_depth();
191 auto& frame = depth < 0 ? frames_.back() : frames_.at(depth - minmax.first);
193 send_to_consumers_delays_[it->first] = frame.get_age_millis();
197 send_results.insert(std::make_pair(it->first, port.send(frame)));
202 CASPAR_LOG_CURRENT_EXCEPTION();
205 send_results.insert(std::make_pair(it->first, port.send(frame)));
210 CASPAR_LOG_CURRENT_EXCEPTION();
211 CASPAR_LOG(error) << "Failed to recover consumer: " << port.print() << L". Removing it.";
212 send_to_consumers_delays_.erase(it->first);
213 it = ports_.erase(it);
219 for (auto it = send_results.begin(); it != send_results.end(); ++it)
223 if (!it->second.get())
225 send_to_consumers_delays_.erase(it->first);
226 ports_.erase(it->first);
231 CASPAR_LOG_CURRENT_EXCEPTION();
232 send_to_consumers_delays_.erase(it->first);
233 ports_.erase(it->first);
238 graph_->set_value("consume-time", frame_timer.elapsed()*format_desc.fps*0.5);
239 *monitor_subject_ << monitor::message("/consume_time") % (frame_timer.elapsed());
242 std::wstring print() const
244 return L"output[" + boost::lexical_cast<std::wstring>(channel_index_) + L"]";
247 std::future<boost::property_tree::wptree> info()
249 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree
251 boost::property_tree::wptree info;
252 for (auto& port : ports_)
254 info.add_child(L"consumers.consumer", port.second.info())
255 .add(L"index", port.first);
258 }, task_priority::high_priority));
261 std::future<boost::property_tree::wptree> delay_info()
263 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree
265 boost::property_tree::wptree info;
267 for (auto& port : ports_)
270 port.second.presentation_frame_age_millis();
271 auto sendoff_age = send_to_consumers_delays_[port.first];
272 auto presentation_time = total_age - sendoff_age;
274 boost::property_tree::wptree child;
275 child.add(L"name", port.second.print());
276 child.add(L"age-at-arrival", sendoff_age);
277 child.add(L"presentation-time", presentation_time);
278 child.add(L"age-at-presentation", total_age);
280 info.add_child(L"consumer", child);
283 }, task_priority::high_priority));
287 output::output(spl::shared_ptr<diagnostics::graph> graph, const video_format_desc& format_desc, int channel_index) : impl_(new impl(std::move(graph), format_desc, channel_index)){}
288 void output::add(int index, const spl::shared_ptr<frame_consumer>& consumer){impl_->add(index, consumer);}
289 void output::add(const spl::shared_ptr<frame_consumer>& consumer){impl_->add(consumer);}
290 void output::remove(int index){impl_->remove(index);}
291 void output::remove(const spl::shared_ptr<frame_consumer>& consumer){impl_->remove(consumer);}
292 std::future<boost::property_tree::wptree> output::info() const{return impl_->info();}
293 std::future<boost::property_tree::wptree> output::delay_info() const{ return impl_->delay_info(); }
294 void output::operator()(const_frame frame, const video_format_desc& format_desc){ (*impl_)(std::move(frame), format_desc); }
295 monitor::subject& output::monitor_output() {return *impl_->monitor_subject_;}