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 deferred_key_read_Frame : 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         deferred_key_read_Frame(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                 if(!has_synchronization_clock())\r
 118                         timer_.tick(1.0/channel_.get_format_desc().fps);\r
 119 \r
 120                 if(frame->image_size() != channel_.get_format_desc().size)\r
 121                 {\r
 122                         timer_.tick(1.0/channel_.get_format_desc().fps);\r
 123                         return;\r
 124                 }\r
 125 \r
 126                 auto fill = frame;\r
 127                 auto key = make_safe<deferred_key_read_Frame>(channel_.ogl(), frame);\r
 128 \r
 129                 auto it = consumers_.begin();\r
 130                 while(it != consumers_.end())\r
 131                 {\r
 132                         try\r
 133                         {\r
 134                                 auto consumer = it->second;\r
 135 \r
 136                                 if(consumer->get_video_format_desc() != channel_.get_format_desc())\r
 137                                         consumer->initialize(channel_.get_format_desc());\r
 138 \r
 139                                 if(consumer->send(consumer->key_only() ? key : fill))\r
 140                                         ++it;\r
 141                                 else\r
 142                                         consumers_.erase(it++);\r
 143                         }\r
 144                         catch(...)\r
 145                         {\r
 146                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
 147                                 CASPAR_LOG(error) << print() << L" " << it->second->print() << L" Removed.";\r
 148                                 consumers_.erase(it++);\r
 149                         }\r
 150                 }\r
 151         }\r
 152 \r
 153 private:\r
 154         \r
 155         bool has_synchronization_clock()\r
 156         {\r
 157                 return std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)\r
 158                 {\r
 159                         return p.second->has_synchronization_clock();\r
 160                 });\r
 161         }\r
 162         \r
 163         std::wstring print() const\r
 164         {\r
 165                 return L"output";\r
 166         }\r
 167 };\r
 168 \r
 169 output::output(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
 170 void output::add(int index, safe_ptr<frame_consumer>&& consumer){impl_->add(index, std::move(consumer));}\r
 171 void output::remove(int index){impl_->remove(index);}\r
 172 void output::execute(const safe_ptr<read_frame>& frame) {impl_->execute(frame); }\r
 173 }}