git.sesse.net Git - casparcg/blob - core/video_channel.cpp

   1 /*\r
   2 * Copyright 2013 Sveriges Television AB http://casparcg.com/\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "StdAfx.h"\r
  23 \r
  24 #include "video_channel.h"\r
  25 \r
  26 #include "video_format.h"\r
  27 \r
  28 #include "consumer/output.h"\r
  29 #include "mixer/mixer.h"\r
  30 #include "mixer/gpu/ogl_device.h"\r
  31 #include "mixer/audio/audio_util.h"\r
  32 #include "producer/stage.h"\r
  33 \r
  34 #include <common/diagnostics/graph.h>\r
  35 #include <common/env.h>\r
  36 \r
  37 #include <boost/property_tree/ptree.hpp>\r
  38 \r
  39 #include <string>\r
  40 \r
  41 namespace caspar { namespace core {\r
  42 \r
  43 struct video_channel::implementation : boost::noncopyable\r
  44 {\r
  45         video_channel&                                                  self_;\r
  46         const int                                                               index_;\r
  47         video_format_desc                                               format_desc_;\r
  48         const safe_ptr<ogl_device>                              ogl_;\r
  49         const safe_ptr<diagnostics::graph>              graph_;\r
  50 \r
  51         const safe_ptr<caspar::core::output>    output_;\r
  52         const safe_ptr<caspar::core::mixer>             mixer_;\r
  53         const safe_ptr<caspar::core::stage>             stage_;\r
  54 \r
  55         safe_ptr<monitor::subject>                              monitor_subject_;\r
  56         \r
  57 public:\r
  58         implementation(video_channel& self, int index, const video_format_desc& format_desc, const safe_ptr<ogl_device>& ogl, const channel_layout& audio_channel_layout)  \r
  59                 : self_(self)\r
  60                 , index_(index)\r
  61                 , format_desc_(format_desc)\r
  62                 , ogl_(ogl)\r
  63                 , output_(new caspar::core::output(graph_, format_desc, index))\r
  64                 , mixer_(new caspar::core::mixer(graph_, output_, format_desc, ogl, audio_channel_layout))\r
  65                 , stage_(new caspar::core::stage(graph_, mixer_, format_desc))  \r
  66                 , monitor_subject_(make_safe<monitor::subject>("/channel/" + boost::lexical_cast<std::string>(index)))\r
  67         {\r
  68                 graph_->set_text(print());\r
  69                 diagnostics::register_graph(graph_);\r
  70 \r
  71                 for(int n = 0; n < std::max(1, env::properties().get(L"configuration.pipeline-tokens", 2)); ++n)\r
  72                         stage_->spawn_token();\r
  73 \r
  74                 stage_->monitor_output().attach_parent(monitor_subject_);\r
  75                 mixer_->monitor_output().attach_parent(monitor_subject_);\r
  76                 output_->monitor_output().attach_parent(monitor_subject_);\r
  77 \r
  78                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
  79         }\r
  80 \r
  81         void set_video_format_desc(const video_format_desc& format_desc)\r
  82         {\r
  83                 if(format_desc.format == core::video_format::invalid)\r
  84                         BOOST_THROW_EXCEPTION(invalid_argument() << msg_info("Invalid video-format"));\r
  85 \r
  86                 try\r
  87                 {\r
  88                         output_->set_video_format_desc(format_desc);\r
  89                         mixer_->set_video_format_desc(format_desc);\r
  90                         stage_->set_video_format_desc(format_desc);\r
  91                         ogl_->gc();\r
  92                 }\r
  93                 catch(...)\r
  94                 {\r
  95                         output_->set_video_format_desc(format_desc_);\r
  96                         mixer_->set_video_format_desc(format_desc_);\r
  97                         stage_->set_video_format_desc(format_desc_);\r
  98                         throw;\r
  99                 }\r
 100                 format_desc_ = format_desc;\r
 101         }\r
 102                 \r
 103         std::wstring print() const\r
 104         {\r
 105                 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_) + L"|" +  format_desc_.name + L"]";\r
 106         }\r
 107 \r
 108         boost::property_tree::wptree info() const\r
 109         {\r
 110                 boost::property_tree::wptree info;\r
 111 \r
 112                 auto stage_info  = stage_->info();\r
 113                 auto mixer_info  = mixer_->info();\r
 114                 auto output_info = output_->info();\r
 115 \r
 116                 info.add(L"video-mode", format_desc_.name);\r
 117 \r
 118                 if (stage_info.timed_wait(boost::posix_time::seconds(2)))\r
 119                         info.add_child(L"stage", stage_info.get());\r
 120 \r
 121                 if (mixer_info.timed_wait(boost::posix_time::seconds(2)))\r
 122                         info.add_child(L"mixer", mixer_info.get());\r
 123 \r
 124                 if (output_info.timed_wait(boost::posix_time::seconds(2)))\r
 125                         info.add_child(L"output", output_info.get());\r
 126    \r
 127                 return info;                       \r
 128         }\r
 129 \r
 130         boost::property_tree::wptree delay_info() const\r
 131         {\r
 132                 boost::property_tree::wptree info;\r
 133 \r
 134                 auto stage_info  = stage_->delay_info();\r
 135                 auto mixer_info  = mixer_->delay_info();\r
 136                 auto output_info = output_->delay_info();\r
 137 \r
 138                 if (stage_info.timed_wait(boost::posix_time::seconds(2)))\r
 139                         info.add_child(L"layers", stage_info.get());\r
 140 \r
 141                 if (mixer_info.timed_wait(boost::posix_time::seconds(2)))\r
 142                         info.add_child(L"mix-time", mixer_info.get());\r
 143 \r
 144                 if (output_info.timed_wait(boost::posix_time::seconds(2)))\r
 145                         info.add_child(L"consumers", output_info.get());\r
 146 \r
 147                 return info;\r
 148         }\r
 149 };\r
 150 \r
 151 video_channel::video_channel(int index, const video_format_desc& format_desc, const safe_ptr<ogl_device>& ogl, const channel_layout& audio_channel_layout) \r
 152         : impl_(new implementation(*this, index, format_desc, ogl, audio_channel_layout)){}\r
 153 safe_ptr<stage> video_channel::stage() { return impl_->stage_;} \r
 154 safe_ptr<mixer> video_channel::mixer() { return impl_->mixer_;} \r
 155 safe_ptr<output> video_channel::output() { return impl_->output_;} \r
 156 video_format_desc video_channel::get_video_format_desc() const{return impl_->format_desc_;}\r
 157 void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 158 boost::property_tree::wptree video_channel::info() const{return impl_->info();}\r
 159 int video_channel::index() const {return impl_->index_;}\r
 160 monitor::subject& video_channel::monitor_output(){return *impl_->monitor_subject_;}\r
 161 boost::property_tree::wptree video_channel::delay_info() const { return impl_->delay_info(); }\r
 162 }}