git.sesse.net Git - casparcg/blob - core/consumer/output.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 #include "../StdAfx.h"\r
  21 \r
  22 #ifdef _MSC_VER\r
  23 #pragma warning (disable : 4244)\r
  24 #endif\r
  25 \r
  26 #include "output.h"\r
  27 \r
  28 #include "../video_channel_context.h"\r
  29 \r
  30 #include "../video_format.h"\r
  31 #include "../mixer/gpu/ogl_device.h"\r
  32 #include "../mixer/read_frame.h"\r
  33 \r
  34 #include <common/concurrency/executor.h>\r
  35 #include <common/utility/assert.h>\r
  36 #include <common/utility/timer.h>\r
  37 #include <common/memory/memshfl.h>\r
  38 \r
  39 #include <tbb/mutex.h>\r
  40 \r
  41 namespace caspar { namespace core {\r
  42 \r
  43 class key_read_frame_muxer : public core::read_frame\r
  44 {\r
  45         ogl_device&                                              ogl_;\r
  46         safe_ptr<read_frame>                     fill_;\r
  47         std::shared_ptr<host_buffer>     key_;\r
  48         tbb::mutex                                           mutex_;\r
  49 public:\r
  50         key_read_frame_muxer(ogl_device& ogl, const safe_ptr<read_frame>& fill)\r
  51                 : ogl_(ogl)\r
  52                 , fill_(fill)\r
  53         {\r
  54         }\r
  55 \r
  56         virtual const boost::iterator_range<const uint8_t*> image_data()\r
  57         {\r
  58                 tbb::mutex::scoped_lock lock(mutex_);\r
  59                 if(!key_)\r
  60                 {\r
  61                         key_ = ogl_.create_host_buffer(fill_->image_data().size(), host_buffer::write_only);                            \r
  62                         fast_memsfhl(key_->data(), fill_->image_data().begin(), fill_->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
  63                 }\r
  64 \r
  65                 auto ptr = static_cast<const uint8_t*>(key_->data());\r
  66                 return boost::iterator_range<const uint8_t*>(ptr, ptr + key_->size());\r
  67         }\r
  68 \r
  69         virtual const boost::iterator_range<const int16_t*> audio_data()\r
  70         {\r
  71                 return fill_->audio_data();\r
  72         }       \r
  73 };\r
  74         \r
  75 struct output::implementation\r
  76 {       \r
  77         typedef std::pair<safe_ptr<read_frame>, safe_ptr<read_frame>> fill_and_key;\r
  78         \r
  79         video_channel_context& channel_;\r
  80 \r
  81         std::map<int, safe_ptr<frame_consumer>> consumers_;\r
  82         typedef std::map<int, safe_ptr<frame_consumer>>::value_type layer_t;\r
  83         \r
  84         high_prec_timer timer_;\r
  85                 \r
  86 public:\r
  87         implementation(video_channel_context& video_channel) \r
  88                 : channel_(video_channel){}     \r
  89         \r
  90         void add(int index, safe_ptr<frame_consumer>&& consumer)\r
  91         {               \r
  92                 consumer->initialize(channel_.get_format_desc());\r
  93                 channel_.execution().invoke([&]\r
  94                 {\r
  95                         consumers_.erase(index);\r
  96                         consumers_.insert(std::make_pair(index, consumer));\r
  97 \r
  98                         CASPAR_LOG(info) << print() << L" " << consumer->print() << L" Added.";\r
  99                 });\r
 100         }\r
 101 \r
 102         void remove(int index)\r
 103         {\r
 104                 channel_.execution().invoke([&]\r
 105                 {\r
 106                         auto it = consumers_.find(index);\r
 107                         if(it != consumers_.end())\r
 108                         {\r
 109                                 CASPAR_LOG(info) << print() << L" " << it->second->print() << L" Removed.";\r
 110                                 consumers_.erase(it);\r
 111                         }\r
 112                 });\r
 113         }\r
 114                                                 \r
 115         void execute(const safe_ptr<read_frame>& frame)\r
 116         {               \r
 117                 try\r
 118                 {               \r
 119                         if(!has_synchronization_clock())\r
 120                                 timer_.tick(1.0/channel_.get_format_desc().fps);\r
 121                                                 \r
 122                         auto fill = frame;\r
 123                         auto key = make_safe<key_read_frame_muxer>(channel_.ogl(), frame);\r
 124 \r
 125                         auto it = consumers_.begin();\r
 126                         while(it != consumers_.end())\r
 127                         {\r
 128                                 try\r
 129                                 {\r
 130                                         auto consumer = it->second;\r
 131 \r
 132                                         if(consumer->get_video_format_desc() != channel_.get_format_desc())\r
 133                                                 consumer->initialize(channel_.get_format_desc());\r
 134 \r
 135                                         auto frame = consumer->key_only() ? key : fill;\r
 136 \r
 137                                         if(static_cast<size_t>(frame->image_data().size()) == consumer->get_video_format_desc().size)\r
 138                                                 consumer->send(frame);\r
 139 \r
 140                                         ++it;\r
 141                                 }\r
 142                                 catch(...)\r
 143                                 {\r
 144                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 145                                         CASPAR_LOG(error) << print() << L" " << it->second->print() << L" Removed.";\r
 146                                         consumers_.erase(it++);\r
 147                                 }\r
 148                         }\r
 149                 }\r
 150                 catch(...)\r
 151                 {\r
 152                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 153                 }\r
 154         }\r
 155 \r
 156 private:\r
 157         \r
 158         bool has_synchronization_clock()\r
 159         {\r
 160                 return std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)\r
 161                 {\r
 162                         return p.second->has_synchronization_clock();\r
 163                 });\r
 164         }\r
 165         \r
 166         std::wstring print() const\r
 167         {\r
 168                 return L"output";\r
 169         }\r
 170 };\r
 171 \r
 172 output::output(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
 173 void output::add(int index, safe_ptr<frame_consumer>&& consumer){impl_->add(index, std::move(consumer));}\r
 174 void output::remove(int index){impl_->remove(index);}\r
 175 void output::execute(const safe_ptr<read_frame>& frame) {impl_->execute(frame); }\r
 176 }}