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/write_frame.h"\r
  31 #include "mixer/gpu/accelerator.h"\r
  32 #include "frame/data_frame.h"\r
  33 #include "producer/stage.h"\r
  34 #include "frame/frame_factory.h"\r
  35 \r
  36 #include <common/diagnostics/graph.h>\r
  37 #include <common/env.h>\r
  38 #include <common/concurrency/lock.h>\r
  39 \r
  40 #include <tbb/spin_mutex.h>\r
  41 \r
  42 #include <boost/property_tree/ptree.hpp>\r
  43 \r
  44 #include <string>\r
  45 \r
  46 namespace caspar { namespace core {\r
  47 \r
  48 struct video_channel::impl sealed : public frame_factory\r
  49 {\r
  50         reactive::basic_subject<spl::shared_ptr<const data_frame>> frame_subject_;\r
  51         const int                                                               index_;\r
  52 \r
  53         mutable tbb::spin_mutex                                 format_desc_mutex_;\r
  54         video_format_desc                                               format_desc_;\r
  55         \r
  56         const spl::shared_ptr<gpu::accelerator>         ogl_;\r
  57         const spl::shared_ptr<diagnostics::graph>               graph_;\r
  58 \r
  59         const spl::shared_ptr<caspar::core::output>     output_;\r
  60         const spl::shared_ptr<caspar::core::mixer>              mixer_;\r
  61         const spl::shared_ptr<caspar::core::stage>              stage_; \r
  62 \r
  63         boost::timer                                                    tick_timer_;\r
  64         boost::timer                                                    produce_timer_;\r
  65         boost::timer                                                    mix_timer_;\r
  66         boost::timer                                                    consume_timer_;\r
  67 \r
  68         executor                                                                executor_;\r
  69 public:\r
  70         impl(int index, const video_format_desc& format_desc, const spl::shared_ptr<gpu::accelerator>& ogl)  \r
  71                 :  index_(index)\r
  72                 , format_desc_(format_desc)\r
  73                 , ogl_(ogl)\r
  74                 , output_(new caspar::core::output(format_desc, index))\r
  75                 , mixer_(new caspar::core::mixer(ogl))\r
  76                 , stage_(new caspar::core::stage())     \r
  77                 , executor_(L"video_channel")\r
  78         {\r
  79                 //graph_->set_color("mix-time", diagnostics::color(1.0f, 0.0f, 0.9f, 0.8));\r
  80                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
  81                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
  82                 graph_->set_color("consume-time", diagnostics::color(1.0f, 0.4f, 0.0f, 0.8));\r
  83                 graph_->set_text(print());\r
  84                 diagnostics::register_graph(graph_);\r
  85 \r
  86                 executor_.begin_invoke([=]{tick();});\r
  87 \r
  88                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
  89         }\r
  90         \r
  91         // frame_factory\r
  92                                                 \r
  93         virtual spl::shared_ptr<write_frame> create_frame(const void* tag, const core::pixel_format_desc& desc) override\r
  94         {               \r
  95                 return mixer_->create_frame(tag, desc);\r
  96         }\r
  97         \r
  98         virtual core::video_format_desc get_video_format_desc() const override\r
  99         {\r
 100                 return lock(format_desc_mutex_, [&]\r
 101                 {\r
 102                         return format_desc_;\r
 103                 });\r
 104         }\r
 105         \r
 106         // video_channel\r
 107 \r
 108         void tick()\r
 109         {\r
 110                 tick_timer_.restart();\r
 111 \r
 112                 // Produce\r
 113 \r
 114                 produce_timer_.restart();\r
 115 \r
 116                 auto stage_frames = (*stage_)(format_desc_);\r
 117                 \r
 118                 graph_->set_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);\r
 119 \r
 120                 // Mix\r
 121 \r
 122                 //mix_timer_.restart();\r
 123 \r
 124                 auto mixed_frame  = (*mixer_)(std::move(stage_frames), format_desc_);\r
 125                 \r
 126                 //graph_->set_value("mix-time", mix_timer_.elapsed()*format_desc_.fps*0.5);\r
 127 \r
 128                 // Consume\r
 129 \r
 130                 consume_timer_.restart();\r
 131 \r
 132                 frame_subject_.on_next(mixed_frame);\r
 133 \r
 134                 graph_->set_value("consume-time", consume_timer_.elapsed()*format_desc_.fps*0.5);\r
 135 \r
 136                 (*output_)(std::move(mixed_frame), format_desc_);\r
 137                 \r
 138                 graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 139 \r
 140                 executor_.begin_invoke([=]{tick();});\r
 141         }\r
 142 \r
 143         void set_video_format_desc(const video_format_desc& format_desc)\r
 144         {\r
 145                 ogl_->gc();\r
 146                 lock(format_desc_mutex_, [&]\r
 147                 {\r
 148                         format_desc_ = format_desc;\r
 149                 });\r
 150         }\r
 151                 \r
 152         std::wstring print() const\r
 153         {\r
 154                 return L"video_channel[" + boost::lexical_cast<std::wstring>(index_) + L"|" +  format_desc_.name + L"]";\r
 155         }\r
 156 \r
 157         boost::property_tree::wptree info() const\r
 158         {\r
 159                 boost::property_tree::wptree info;\r
 160 \r
 161                 auto stage_info  = stage_->info();\r
 162                 auto mixer_info  = mixer_->info();\r
 163                 auto output_info = output_->info();\r
 164 \r
 165                 info.add(L"video-mode", format_desc_.name);\r
 166                 info.add_child(L"stage", stage_info.get());\r
 167                 info.add_child(L"mixer", mixer_info.get());\r
 168                 info.add_child(L"output", output_info.get());\r
 169    \r
 170                 return info;                       \r
 171         }\r
 172 };\r
 173 \r
 174 video_channel::video_channel(int index, const video_format_desc& format_desc, const spl::shared_ptr<gpu::accelerator>& ogl) : impl_(new impl(index, format_desc, ogl)){}\r
 175 spl::shared_ptr<stage> video_channel::stage() { return impl_->stage_;} \r
 176 spl::shared_ptr<mixer> video_channel::mixer() { return impl_->mixer_;} \r
 177 spl::shared_ptr<frame_factory> video_channel::frame_factory() { return impl_;} \r
 178 spl::shared_ptr<output> video_channel::output() { return impl_->output_;} \r
 179 video_format_desc video_channel::get_video_format_desc() const{return impl_->format_desc_;}\r
 180 void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 181 boost::property_tree::wptree video_channel::info() const{return impl_->info();}\r
 182 void video_channel::subscribe(const observer_ptr& o) {impl_->frame_subject_.subscribe(o);}\r
 183 void video_channel::unsubscribe(const observer_ptr& o) {impl_->frame_subject_.unsubscribe(o);}\r
 184 \r
 185 }}