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 \r
  27 #include "video_format.h"\r
  28 #include "producer/layer.h"\r
  29 \r
  30 #include <common/concurrency/executor.h>\r
  31 #include <common/diagnostics/graph.h>\r
  32 \r
  33 #include <boost/range/algorithm_ext/erase.hpp>\r
  34 #include <boost/timer.hpp>\r
  35 \r
  36 #ifdef _MSC_VER\r
  37 #pragma warning(disable : 4355)\r
  38 #endif\r
  39 \r
  40 namespace caspar { namespace core {\r
  41 \r
  42 struct video_channel::implementation : boost::noncopyable\r
  43 {\r
  44         video_channel_context                   context_;\r
  45 \r
  46         safe_ptr<frame_consumer_device> consumer_;\r
  47         safe_ptr<frame_mixer_device>    mixer_;\r
  48         safe_ptr<frame_producer_device> producer_;\r
  49 \r
  50         safe_ptr<diagnostics::graph>    diag_;\r
  51         boost::timer                                    frame_timer_;\r
  52         boost::timer                                    tick_timer_;\r
  53         \r
  54 public:\r
  55         implementation(int index, const video_format_desc& format_desc, ogl_device& ogl)  \r
  56                 : context_(index, ogl, format_desc)\r
  57                 , diag_(diagnostics::create_graph(narrow(print())))\r
  58                 , consumer_(new frame_consumer_device(context_))\r
  59                 , mixer_(new frame_mixer_device(context_))\r
  60                 , producer_(new frame_producer_device(context_))        \r
  61         {\r
  62                 diag_->add_guide("produce-time", 0.5f); \r
  63                 diag_->set_color("produce-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
  64                 diag_->add_guide("mix-time", 0.5f);     \r
  65                 diag_->set_color("mix-time", diagnostics::color(1.0f, 0.0f, 1.0f));\r
  66                 diag_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));    \r
  67 \r
  68                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
  69                 context_.execution().begin_invoke([this]{tick();});\r
  70         }\r
  71 \r
  72         ~implementation()\r
  73         {\r
  74                 // Stop context before destroying devices.\r
  75                 context_.execution().stop();\r
  76                 context_.execution().join();\r
  77                 context_.destruction().stop();\r
  78                 context_.destruction().join();\r
  79         }\r
  80 \r
  81         void tick()\r
  82         {\r
  83                 // Produce\r
  84 \r
  85                 frame_timer_.restart();\r
  86 \r
  87                 auto simple_frames = producer_->execute();\r
  88 \r
  89                 diag_->update_value("produce-time", frame_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
  90                 \r
  91                 // Mix\r
  92 \r
  93                 frame_timer_.restart();\r
  94 \r
  95                 auto finished_frame = mixer_->execute(simple_frames);\r
  96                 \r
  97                 diag_->update_value("mix-time", frame_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
  98                 \r
  99                 // Consume\r
 100 \r
 101                 consumer_->execute(finished_frame);\r
 102                 \r
 103                 diag_->update_value("tick-time", tick_timer_.elapsed()*context_.get_format_desc().fps*0.5);\r
 104                 tick_timer_.restart();\r
 105 \r
 106                 context_.execution().begin_invoke([this]{tick();});\r
 107         }\r
 108                 \r
 109         std::wstring print() const\r
 110         {\r
 111                 return context_.print();\r
 112         }\r
 113 \r
 114         void set_video_format_desc(const video_format_desc& format_desc)\r
 115         {\r
 116                 context_.execution().begin_invoke([=]\r
 117                 {\r
 118                         context_.set_format_desc(format_desc);\r
 119                 });\r
 120         }\r
 121 };\r
 122 \r
 123 video_channel::video_channel(int index, const video_format_desc& format_desc, ogl_device& ogl) : impl_(new implementation(index, format_desc, ogl)){}\r
 124 video_channel::video_channel(video_channel&& other) : impl_(std::move(other.impl_)){}\r
 125 safe_ptr<frame_producer_device> video_channel::producer() { return impl_->producer_;} \r
 126 safe_ptr<frame_mixer_device> video_channel::mixer() { return impl_->mixer_;} \r
 127 safe_ptr<frame_consumer_device> video_channel::consumer() { return impl_->consumer_;} \r
 128 video_format_desc video_channel::get_video_format_desc() const{return impl_->context_.get_format_desc();}\r
 129 void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 130 std::wstring video_channel::print() const { return impl_->print();}\r
 131 \r
 132 }}