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 executor executor_ = { L"output" };
65 impl(spl::shared_ptr<diagnostics::graph> graph, const video_format_desc& format_desc, int channel_index)
66 : graph_(std::move(graph))
67 , channel_index_(channel_index)
68 , format_desc_(format_desc)
70 graph_->set_color("consume-time", diagnostics::color(1.0f, 0.4f, 0.0f, 0.8f));
73 void add(int index, spl::shared_ptr<frame_consumer> consumer)
77 consumer->initialize(format_desc_, channel_index_);
79 executor_.begin_invoke([this, index, consumer]
81 port p(index, channel_index_, std::move(consumer));
82 p.monitor_output().attach_parent(monitor_subject_);
83 ports_.insert(std::make_pair(index, std::move(p)));
84 }, task_priority::high_priority);
87 void add(const spl::shared_ptr<frame_consumer>& consumer)
89 add(consumer->index(), consumer);
92 void remove(int index)
94 executor_.begin_invoke([=]
96 auto it = ports_.find(index);
97 if(it != ports_.end())
99 }, task_priority::high_priority);
102 void remove(const spl::shared_ptr<frame_consumer>& consumer)
104 remove(consumer->index());
107 void set_video_format_desc(const core::video_format_desc& format_desc)
111 if(format_desc_ == format_desc)
114 auto it = ports_.begin();
115 while(it != ports_.end())
119 it->second.video_format_desc(format_desc);
124 CASPAR_LOG_CURRENT_EXCEPTION();
129 format_desc_ = format_desc;
134 std::pair<int, int> minmax_buffer_depth() const
137 return std::make_pair(0, 0);
139 return cpplinq::from(ports_)
141 .select(std::mem_fn(&port::buffer_depth))
142 .aggregate(minmax::initial_value<int>(), minmax());
145 bool has_synchronization_clock() const
147 return cpplinq::from(ports_)
149 .where(std::mem_fn(&port::has_synchronization_clock))
153 void operator()(const_frame input_frame, const core::video_format_desc& format_desc)
155 caspar::timer frame_timer;
157 set_video_format_desc(format_desc);
162 if(!has_synchronization_clock())
163 sync_timer_.tick(1.0/format_desc_.fps);
165 if(input_frame.size() != format_desc_.size)
167 CASPAR_LOG(debug) << print() << L" Invalid input frame dimension.";
171 auto minmax = minmax_buffer_depth();
173 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.
174 frames_.push_back(input_frame);
179 std::map<int, std::future<bool>> send_results;
182 for (auto it = ports_.begin(); it != ports_.end();)
184 auto& port = it->second;
185 auto& frame = frames_.at(port.buffer_depth()-minmax.first);
189 send_results.insert(std::make_pair(it->first, port.send(frame)));
194 CASPAR_LOG_CURRENT_EXCEPTION();
197 send_results.insert(std::make_pair(it->first, port.send(frame)));
202 CASPAR_LOG_CURRENT_EXCEPTION();
203 CASPAR_LOG(error) << "Failed to recover consumer: " << port.print() << L". Removing it.";
204 it = ports_.erase(it);
210 for (auto it = send_results.begin(); it != send_results.end(); ++it)
214 if (!it->second.get())
215 ports_.erase(it->first);
219 CASPAR_LOG_CURRENT_EXCEPTION();
220 ports_.erase(it->first);
225 graph_->set_value("consume-time", frame_timer.elapsed()*format_desc.fps*0.5);
228 std::wstring print() const
230 return L"output[" + boost::lexical_cast<std::wstring>(channel_index_) + L"]";
233 std::future<boost::property_tree::wptree> info()
235 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree
237 boost::property_tree::wptree info;
238 for (auto& port : ports_)
240 info.add_child(L"consumers.consumer", port.second.info())
241 .add(L"index", port.first);
244 }, task_priority::high_priority));
248 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)){}
249 void output::add(int index, const spl::shared_ptr<frame_consumer>& consumer){impl_->add(index, consumer);}
250 void output::add(const spl::shared_ptr<frame_consumer>& consumer){impl_->add(consumer);}
251 void output::remove(int index){impl_->remove(index);}
252 void output::remove(const spl::shared_ptr<frame_consumer>& consumer){impl_->remove(consumer);}
253 std::future<boost::property_tree::wptree> output::info() const{return impl_->info();}
254 void output::operator()(const_frame frame, const video_format_desc& format_desc){(*impl_)(std::move(frame), format_desc);}
255 monitor::subject& output::monitor_output() {return *impl_->monitor_subject_;}