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

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\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 */\r
  20 \r
  21 #include "StdAfx.h"\r
  22 \r
  23 #include "video_channel.h"\r
  24 \r
  25 #include "video_channel_context.h"\r
  26 #include "video_format.h"\r
  27 \r
  28 #include "consumer/output.h"\r
  29 #include "mixer/mixer.h"\r
  30 #include "producer/stage.h"\r
  31 \r
  32 #include <common/concurrency/executor.h>\r
  33 #include <common/diagnostics/graph.h>\r
  34 \r
  35 #include <boost/timer.hpp>\r
  36 \r
  37 #ifdef _MSC_VER\r
  38 #pragma warning(disable : 4355)\r
  39 #endif\r
  40 \r
  41 namespace caspar { namespace core {\r
  42 \r
  43 struct video_channel::implementation : boost::noncopyable\r
  44 {\r
  45         video_channel_context                   context_;\r
  46 \r
  47         safe_ptr<caspar::core::output>                  output_;\r
  48         std::shared_ptr<caspar::core::mixer>    mixer_;\r
  49         safe_ptr<caspar::core::stage>                   stage_;\r
  50 \r
  51         safe_ptr<diagnostics::graph>    diag_;\r
  52         boost::timer                                    frame_timer_;\r
  53         boost::timer                                    tick_timer_;\r
  54         boost::timer                                    output_timer_;\r
  55         \r
  56 public:\r
  57         implementation(int index, const video_format_desc& format_desc, ogl_device& ogl)  \r
  58                 : context_(index, ogl, format_desc)\r
  59                 , diag_(diagnostics::create_graph(narrow(print())))\r
  60                 , output_(new caspar::core::output(context_))\r
  61                 , mixer_(new caspar::core::mixer(context_))\r
  62                 , stage_(new caspar::core::stage(context_))     \r
  63         {\r
  64                 diag_->add_guide("produce-time", 0.5f); \r
  65                 diag_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
  66                 diag_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));    \r
  67                 diag_->set_color("output-time", diagnostics::color(1.0f, 0.5f, 0.0f));\r
  68                 diag_->set_color("mix-time", diagnostics::color(1.0f, 1.0f, 0.9f));\r
  69 \r
  70                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
  71                 context_.execution().begin_invoke([this]{tick();});\r
  72         }\r
  73 \r
  74         ~implementation()\r
  75         {\r
  76                 // Stop context before destroying devices.\r
  77                 context_.execution().stop();\r
  78                 context_.execution().join();\r
  79                 context_.destruction().stop();\r
  80                 context_.destruction().join();\r
  81         }\r
  82 \r
  83         void tick()\r
  84         {\r
  85                 try\r
  86                 {\r
  87                         // Produce\r
  88 \r
  89                         frame_timer_.restart();\r
  90 \r
  91                         auto simple_frames = stage_->execute();\r
  92 \r
  93                         diag_->update_value("produce-time", frame_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
  94                 \r
  95                         // Mix\r
  96 \r
  97                         frame_timer_.restart();\r
  98 \r
  99                         auto finished_frame = mixer_->execute(simple_frames);\r
 100                 \r
 101                         diag_->update_value("mix-time", frame_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
 102                 \r
 103                         // Consume\r
 104                 \r
 105                         output_timer_.restart();\r
 106 \r
 107                         output_->execute(finished_frame);\r
 108                 \r
 109                         diag_->update_value("output-time", frame_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
 110 \r
 111                 \r
 112                         diag_->update_value("tick-time", tick_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
 113                         tick_timer_.restart();\r
 114                 }\r
 115                 catch(...)\r
 116                 {\r
 117                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 118                         CASPAR_LOG(error) << context_.print() << L" Unexpected exception. Clearing stage and freeing memory";\r
 119 \r
 120                         stage_->clear();\r
 121                         context_.ogl().gc().wait();\r
 122 \r
 123                         mixer_ = nullptr;\r
 124                         mixer_.reset(new caspar::core::mixer(context_));\r
 125                 }\r
 126 \r
 127                 context_.execution().begin_invoke([this]{tick();});\r
 128         }\r
 129                 \r
 130         std::wstring print() const\r
 131         {\r
 132                 return context_.print();\r
 133         }\r
 134 \r
 135         void set_video_format_desc(const video_format_desc& format_desc)\r
 136         {\r
 137                 context_.execution().begin_invoke([=]\r
 138                 {\r
 139                         stage_->clear();\r
 140                         context_.ogl().gc().wait();\r
 141                         context_.set_format_desc(format_desc);\r
 142                 });\r
 143         }\r
 144 };\r
 145 \r
 146 video_channel::video_channel(int index, const video_format_desc& format_desc, ogl_device& ogl) : impl_(new implementation(index, format_desc, ogl)){}\r
 147 video_channel::video_channel(video_channel&& other) : impl_(std::move(other.impl_)){}\r
 148 safe_ptr<stage> video_channel::stage() { return impl_->stage_;} \r
 149 safe_ptr<mixer> video_channel::mixer() { return make_safe(impl_->mixer_);} \r
 150 safe_ptr<output> video_channel::output() { return impl_->output_;} \r
 151 video_format_desc video_channel::get_video_format_desc() const{return impl_->context_.get_format_desc();}\r
 152 void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 153 std::wstring video_channel::print() const { return impl_->print();}\r
 154 \r
 155 }}