git.sesse.net Git - casparcg/blob - core/producer/scene/scene_cg_proxy.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   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.
  10 *
  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.
  15 *
  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/>.
  18 *
  19 * Author: Helge Norberg, helge.norberg@svt.se
  20 */
  21
  22 #include "../../StdAfx.h"
  23
  24 #include "scene_cg_proxy.h"
  25
  26 #include <common/ptree.h>
  27
  28 #include <core/producer/frame_producer.h>
  29
  30 #include <boost/property_tree/ptree.hpp>
  31 #include <boost/property_tree/xml_parser.hpp>
  32
  33 #include <sstream>
  34 #include <future>
  35
  36 namespace caspar { namespace core { namespace scene {
  37
  38 struct scene_cg_proxy::impl
  39 {
  40         spl::shared_ptr<frame_producer> producer_;
  41
  42         impl(spl::shared_ptr<frame_producer> producer)
  43                 : producer_(std::move(producer))
  44         {
  45         }
  46 };
  47
  48 scene_cg_proxy::scene_cg_proxy(spl::shared_ptr<frame_producer> producer)
  49         : impl_(new impl(std::move(producer)))
  50 {
  51 }
  52
  53 void scene_cg_proxy::add(
  54                 int layer,
  55                 const std::wstring& template_name,
  56                 bool play_on_load,
  57                 const std::wstring& start_from_label,
  58                 const std::wstring& data)
  59 {
  60         update(layer, data);
  61
  62         if (play_on_load)
  63                 play(layer);
  64 }
  65
  66 void scene_cg_proxy::remove(int layer)
  67 {
  68         impl_->producer_->call({ L"remove()" });
  69 }
  70
  71 void scene_cg_proxy::play(int layer)
  72 {
  73         impl_->producer_->call({ L"play()", L"intro" });
  74 }
  75
  76 void scene_cg_proxy::stop(int layer, unsigned int mix_out_duration)
  77 {
  78         impl_->producer_->call({ L"play()", L"outro" });
  79 }
  80
  81 void scene_cg_proxy::next(int layer)
  82 {
  83         impl_->producer_->call({ L"next()" });
  84 }
  85
  86 void scene_cg_proxy::update(int layer, const std::wstring& data)
  87 {
  88         if (data.empty())
  89                 return;
  90
  91         std::wstringstream stream(data);
  92         boost::property_tree::wptree root;
  93         boost::property_tree::read_xml(
  94                         stream,
  95                         root,
  96                         boost::property_tree::xml_parser::trim_whitespace | boost::property_tree::xml_parser::no_comments);
  97
  98         std::vector<std::wstring> parameters;
  99
 100         for (auto value : root | witerate_children(L"templateData") | welement_context_iteration)
 101         {
 102                 ptree_verify_element_name(value, L"componentData");
 103
 104                 auto id         = ptree_get<std::wstring>(value.second, L"<xmlattr>.id");
 105                 auto val        = ptree_get<std::wstring>(value.second, L"data.<xmlattr>.value");
 106
 107                 parameters.push_back(std::move(id));
 108                 parameters.push_back(std::move(val));
 109         }
 110
 111         impl_->producer_->call(parameters);
 112 }
 113
 114 std::wstring scene_cg_proxy::invoke(int layer, const std::wstring& label)
 115 {
 116         if (boost::ends_with(label, L")"))
 117                 return impl_->producer_->call({ L"play()", label.substr(0, label.find(L"(")) }).get();
 118         else
 119                 return impl_->producer_->call({ L"play()", label }).get();
 120 }
 121
 122 std::wstring scene_cg_proxy::description(int layer)
 123 {
 124         return L"<scene producer />";
 125 }
 126
 127 std::wstring scene_cg_proxy::template_host_info()
 128 {
 129         return L"<scene producer />";
 130 }
 131
 132 }}}