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
24 #include "video_channel.h"
26 #include "video_format.h"
28 #include "producer/stage.h"
29 #include "mixer/mixer.h"
30 #include "consumer/output.h"
31 #include "frame/frame.h"
32 #include "frame/draw_frame.h"
33 #include "frame/frame_factory.h"
35 #include <common/diagnostics/graph.h>
36 #include <common/env.h>
37 #include <common/lock.h>
38 #include <common/executor.h>
39 #include <common/timer.h>
41 #include <core/mixer/image/image_mixer.h>
42 #include <core/diagnostics/call_context.h>
44 #include <tbb/spin_mutex.h>
46 #include <boost/property_tree/ptree.hpp>
47 #include <boost/lexical_cast.hpp>
51 namespace caspar { namespace core {
53 struct video_channel::impl final
55 spl::shared_ptr<monitor::subject> monitor_subject_;
59 mutable tbb::spin_mutex format_desc_mutex_;
60 core::video_format_desc format_desc_;
62 const spl::shared_ptr<caspar::diagnostics::graph> graph_ = [](int index)
64 core::diagnostics::scoped_call_context save;
65 core::diagnostics::call_context::for_thread().video_channel = index;
66 return spl::make_shared<caspar::diagnostics::graph>();
69 caspar::core::output output_;
70 spl::shared_ptr<image_mixer> image_mixer_;
71 caspar::core::mixer mixer_;
72 caspar::core::stage stage_;
74 executor executor_ { L"video_channel " + boost::lexical_cast<std::wstring>(index_) };
76 impl(int index, const core::video_format_desc& format_desc, std::unique_ptr<image_mixer> image_mixer)
77 : monitor_subject_(spl::make_shared<monitor::subject>(
78 "/channel/" + boost::lexical_cast<std::string>(index)))
80 , format_desc_(format_desc)
81 , output_(graph_, format_desc, index)
82 , image_mixer_(std::move(image_mixer))
83 , mixer_(index, graph_, image_mixer_)
84 , stage_(index, graph_)
86 graph_->set_color("tick-time", caspar::diagnostics::color(0.0f, 0.6f, 0.9f));
87 graph_->set_text(print());
88 caspar::diagnostics::register_graph(graph_);
90 output_.monitor_output().attach_parent(monitor_subject_);
91 stage_.monitor_output().attach_parent(monitor_subject_);
93 executor_.begin_invoke([=]{tick();});
95 CASPAR_LOG(info) << print() << " Successfully Initialized.";
98 core::video_format_desc video_format_desc() const
100 return lock(format_desc_mutex_, [&]
106 void video_format_desc(const core::video_format_desc& format_desc)
108 lock(format_desc_mutex_, [&]
110 format_desc_ = format_desc;
120 auto format_desc = video_format_desc();
122 caspar::timer frame_timer;
126 auto stage_frames = stage_(format_desc);
130 auto mixed_frame = mixer_(std::move(stage_frames), format_desc);
134 output_(std::move(mixed_frame), format_desc);
136 auto frame_time = frame_timer.elapsed()*format_desc.fps*0.5;
137 graph_->set_value("tick-time", frame_time);
139 *monitor_subject_ << monitor::message("/profiler/time") % frame_timer.elapsed() % (1.0/format_desc_.fps)
140 << monitor::message("/format") % format_desc.name;
144 CASPAR_LOG_CURRENT_EXCEPTION();
147 executor_.begin_invoke([=]{tick();});
150 std::wstring print() const
152 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_) + L"|" + video_format_desc().name + L"]";
160 boost::property_tree::wptree info() const
162 boost::property_tree::wptree info;
164 auto stage_info = stage_.info();
165 auto mixer_info = mixer_.info();
166 auto output_info = output_.info();
168 info.add(L"video-mode", format_desc_.name);
169 info.add_child(L"stage", stage_info.get());
170 info.add_child(L"mixer", mixer_info.get());
171 info.add_child(L"output", output_info.get());
176 boost::property_tree::wptree delay_info() const
178 boost::property_tree::wptree info;
180 auto stage_info = stage_.delay_info();
181 auto mixer_info = mixer_.delay_info();
182 auto output_info = output_.delay_info();
184 // TODO: because of std::async deferred timed waiting does not work so for now we have to block
185 info.add_child(L"layers", stage_info.get());
186 info.add_child(L"mix-time", mixer_info.get());
187 info.add_child(L"output", output_info.get());
193 video_channel::video_channel(int index, const core::video_format_desc& format_desc, std::unique_ptr<image_mixer> image_mixer) : impl_(new impl(index, format_desc, std::move(image_mixer))){}
194 video_channel::~video_channel(){}
195 const stage& video_channel::stage() const { return impl_->stage_;}
196 stage& video_channel::stage() { return impl_->stage_;}
197 const mixer& video_channel::mixer() const{ return impl_->mixer_;}
198 mixer& video_channel::mixer() { return impl_->mixer_;}
199 const output& video_channel::output() const { return impl_->output_;}
200 output& video_channel::output() { return impl_->output_;}
201 spl::shared_ptr<frame_factory> video_channel::frame_factory() { return impl_->image_mixer_;}
202 core::video_format_desc video_channel::video_format_desc() const{return impl_->video_format_desc();}
203 void core::video_channel::video_format_desc(const core::video_format_desc& format_desc){impl_->video_format_desc(format_desc);}
204 boost::property_tree::wptree video_channel::info() const{return impl_->info();}
205 boost::property_tree::wptree video_channel::delay_info() const { return impl_->delay_info(); }
206 int video_channel::index() const { return impl_->index(); }
207 monitor::subject& video_channel::monitor_output(){ return *impl_->monitor_subject_; }