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

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@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/write_frame.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::impl sealed : public frame_factory\r
  44 {\r
  45         const int                                               index_;\r
  46         video_format_desc                               format_desc_;\r
  47         const safe_ptr<ogl_device>              ogl_;\r
  48         safe_ptr<diagnostics::graph>    graph_;\r
  49 \r
  50         safe_ptr<caspar::core::output>  output_;\r
  51         safe_ptr<caspar::core::mixer>   mixer_;\r
  52         safe_ptr<caspar::core::stage>   stage_;\r
  53         \r
  54 public:\r
  55         impl(int index, const video_format_desc& format_desc, const safe_ptr<ogl_device>& ogl)  \r
  56                 : index_(index)\r
  57                 , format_desc_(format_desc)\r
  58                 , ogl_(ogl)\r
  59                 , output_(new caspar::core::output(graph_, format_desc, index))\r
  60                 , mixer_(new caspar::core::mixer(graph_, format_desc, ogl))\r
  61                 , stage_(new caspar::core::stage(graph_, format_desc))  \r
  62         {\r
  63                 mixer_->link_target(output_);\r
  64                 stage_->link_target(mixer_);\r
  65 \r
  66                 graph_->set_text(print());\r
  67                 diagnostics::register_graph(graph_);\r
  68 \r
  69                 for(int n = 0; n < std::max(1, env::properties().get(L"configuration.pipeline-tokens", 2)); ++n)\r
  70                         stage_->spawn_token();\r
  71 \r
  72                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
  73         }\r
  74                                                 \r
  75         virtual safe_ptr<write_frame> create_frame(const void* tag, const core::pixel_format_desc& desc) override\r
  76         {               \r
  77                 return make_safe<write_frame>(ogl_, tag, desc);\r
  78         }\r
  79         \r
  80         virtual core::video_format_desc get_video_format_desc() const override// nothrow\r
  81         {\r
  82                 return mixer_->get_video_format_desc();\r
  83         }\r
  84         \r
  85         void set_video_format_desc(const video_format_desc& format_desc)\r
  86         {\r
  87                 if(format_desc.format == core::video_format::invalid)\r
  88                         BOOST_THROW_EXCEPTION(invalid_argument() << msg_info("Invalid video-format"));\r
  89 \r
  90                 try\r
  91                 {\r
  92                         output_->set_video_format_desc(format_desc);\r
  93                         mixer_->set_video_format_desc(format_desc);\r
  94                         ogl_->gc();\r
  95                 }\r
  96                 catch(...)\r
  97                 {\r
  98                         output_->set_video_format_desc(format_desc_);\r
  99                         mixer_->set_video_format_desc(format_desc_);\r
 100                         throw;\r
 101                 }\r
 102                 format_desc_ = format_desc;\r
 103         }\r
 104                 \r
 105         std::wstring print() const\r
 106         {\r
 107                 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_) + L"|" +  format_desc_.name + L"]";\r
 108         }\r
 109 \r
 110         boost::property_tree::wptree info() const\r
 111         {\r
 112                 boost::property_tree::wptree info;\r
 113 \r
 114                 auto stage_info  = stage_->info();\r
 115                 auto mixer_info  = mixer_->info();\r
 116                 auto output_info = output_->info();\r
 117 \r
 118                 stage_info.timed_wait(boost::posix_time::seconds(2));\r
 119                 mixer_info.timed_wait(boost::posix_time::seconds(2));\r
 120                 output_info.timed_wait(boost::posix_time::seconds(2));\r
 121                 \r
 122                 info.add(L"video-mode", format_desc_.name);\r
 123                 info.add_child(L"stage", stage_info.get());\r
 124                 info.add_child(L"mixer", mixer_info.get());\r
 125                 info.add_child(L"output", output_info.get());\r
 126    \r
 127                 return info;                       \r
 128         }\r
 129 };\r
 130 \r
 131 video_channel::video_channel(int index, const video_format_desc& format_desc, const safe_ptr<ogl_device>& ogl) : impl_(new impl(index, format_desc, ogl)){}\r
 132 safe_ptr<stage> video_channel::stage() { return impl_->stage_;} \r
 133 safe_ptr<mixer> video_channel::mixer() { return impl_->mixer_;} \r
 134 safe_ptr<frame_factory> video_channel::frame_factory() { return impl_;} \r
 135 safe_ptr<output> video_channel::output() { return impl_->output_;} \r
 136 video_format_desc video_channel::get_video_format_desc() const{return impl_->format_desc_;}\r
 137 void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 138 boost::property_tree::wptree video_channel::info() const{return impl_->info();}\r
 139 \r
 140 }}