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: Helge Norberg, helge.norberg@svt.se
22 #include "../../StdAfx.h"
24 #include "hotswap_producer.h"
26 #include "../frame_producer.h"
27 #include "../../frame/draw_frame.h"
29 namespace caspar { namespace core {
31 struct hotswap_producer::impl
33 spl::shared_ptr<monitor::subject> monitor_subject;
34 binding<std::shared_ptr<frame_producer>> producer;
37 impl(int width, int height, bool auto_size)
40 producer.on_change([=]
44 size.width.bind(producer.get()->pixel_constraints().width);
45 size.height.bind(producer.get()->pixel_constraints().height);
48 producer.get()->monitor_output().attach_parent(monitor_subject);
53 hotswap_producer::hotswap_producer(int width, int height, bool auto_size)
54 : impl_(new impl(width, height, auto_size))
58 hotswap_producer::~hotswap_producer()
62 draw_frame hotswap_producer::receive_impl()
64 auto producer = impl_->producer.get();
67 return producer->receive();
69 return draw_frame::empty();
72 constraints& hotswap_producer::pixel_constraints()
77 std::wstring hotswap_producer::print() const
79 auto producer = impl_->producer.get();
80 return L"hotswap[" + (producer ? producer->print() : L"") + L"]";
83 std::wstring hotswap_producer::name() const
88 boost::property_tree::wptree hotswap_producer::info() const
90 boost::property_tree::wptree info;
91 info.add(L"type", L"hotswap");
93 auto producer = impl_->producer.get();
96 info.add(L"producer", producer->print());
101 monitor::subject& hotswap_producer::monitor_output()
103 return *impl_->monitor_subject;
106 variable& hotswap_producer::get_variable(const std::wstring& name)
108 auto producer = impl_->producer.get();
111 return producer->get_variable(name);
113 return frame_producer_base::get_variable(name);
116 const std::vector<std::wstring>& hotswap_producer::get_variables() const
118 auto producer = impl_->producer.get();
121 return producer->get_variables();
123 return frame_producer_base::get_variables();
126 binding<std::shared_ptr<frame_producer>>& hotswap_producer::producer()
128 return impl_->producer;