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>
40 #include <core/mixer/image/image_mixer.h>
42 #include <tbb/spin_mutex.h>
44 #include <boost/property_tree/ptree.hpp>
48 namespace caspar { namespace core {
50 struct video_channel::impl /* final */
52 monitor::subject monitor_subject_;
56 mutable tbb::spin_mutex format_desc_mutex_;
57 core::video_format_desc format_desc_;
59 const spl::shared_ptr<diagnostics::graph> graph_;
61 caspar::core::output output_;
62 spl::shared_ptr<image_mixer> image_mixer_;
63 caspar::core::mixer mixer_;
64 caspar::core::stage stage_;
68 impl(int index, const core::video_format_desc& format_desc, std::unique_ptr<image_mixer> image_mixer)
69 : monitor_subject_("/channel" + boost::lexical_cast<std::string>(index))
71 , format_desc_(format_desc)
72 , output_(graph_, format_desc, index)
73 , image_mixer_(std::move(image_mixer))
74 , mixer_(graph_, image_mixer_)
76 , executor_(L"video_channel")
78 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));
79 graph_->set_text(print());
80 diagnostics::register_graph(graph_);
82 output_.monitor_output().link_target(&monitor_subject_);
83 stage_.monitor_output().link_target(&monitor_subject_);
85 executor_.begin_invoke([=]{tick();});
87 CASPAR_LOG(info) << print() << " Successfully Initialized.";
90 core::video_format_desc video_format_desc() const
92 return lock(format_desc_mutex_, [&]
98 void video_format_desc(const core::video_format_desc& format_desc)
100 lock(format_desc_mutex_, [&]
102 format_desc_ = format_desc;
112 auto format_desc = video_format_desc();
114 boost::timer frame_timer;
118 auto stage_frames = stage_(format_desc);
122 auto mixed_frame = mixer_(std::move(stage_frames), format_desc);
126 output_(std::move(mixed_frame), format_desc);
128 graph_->set_value("tick-time", frame_timer.elapsed()*format_desc.fps*0.5);
130 monitor_subject_ << monitor::message("/profiler/time") % frame_timer.elapsed() % (1.0/format_desc_.fps)
131 << monitor::message("/format") % format_desc.name;
135 CASPAR_LOG_CURRENT_EXCEPTION();
138 executor_.begin_invoke([=]{tick();});
141 std::wstring print() const
143 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_) + L"|" + video_format_desc().name + L"]";
146 boost::property_tree::wptree info() const
148 boost::property_tree::wptree info;
150 auto stage_info = stage_.info();
151 auto mixer_info = mixer_.info();
152 auto output_info = output_.info();
154 info.add(L"video-mode", format_desc_.name);
155 info.add_child(L"stage", stage_info.get());
156 info.add_child(L"mixer", mixer_info.get());
157 info.add_child(L"output", output_info.get());
163 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))){}
164 video_channel::~video_channel(){}
165 const stage& video_channel::stage() const { return impl_->stage_;}
166 stage& video_channel::stage() { return impl_->stage_;}
167 const mixer& video_channel::mixer() const{ return impl_->mixer_;}
168 mixer& video_channel::mixer() { return impl_->mixer_;}
169 const output& video_channel::output() const { return impl_->output_;}
170 output& video_channel::output() { return impl_->output_;}
171 spl::shared_ptr<frame_factory> video_channel::frame_factory() { return impl_->image_mixer_;}
172 core::video_format_desc video_channel::video_format_desc() const{return impl_->video_format_desc();}
173 void core::video_channel::video_format_desc(const core::video_format_desc& format_desc){impl_->video_format_desc(format_desc);}
174 boost::property_tree::wptree video_channel::info() const{return impl_->info();}
175 monitor::source& video_channel::monitor_output(){return impl_->monitor_subject_;}