git.sesse.net Git - casparcg/blob - core/producer/frame/basic_frame.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 #include "basic_frame.h"\r
  23 \r
  24 #include "frame_transform.h"\r
  25 #include "../../video_format.h"\r
  26 \r
  27 #include <boost/foreach.hpp>\r
  28 \r
  29 namespace caspar { namespace core {\r
  30                                                                                                                                                                                                                                                                                                                 \r
  31 struct basic_frame::implementation\r
  32 {               \r
  33         std::vector<safe_ptr<basic_frame>> frames_;\r
  34 \r
  35         frame_transform frame_transform_;       \r
  36         \r
  37 public:\r
  38         implementation(const std::vector<safe_ptr<basic_frame>>& frames) : frames_(frames) \r
  39         {\r
  40         }\r
  41         implementation(std::vector<safe_ptr<basic_frame>>&& frames) : frames_(std::move(frames))\r
  42         {\r
  43         }\r
  44         implementation(safe_ptr<basic_frame>&& frame) \r
  45         {\r
  46                 frames_.push_back(std::move(frame));\r
  47         }\r
  48         implementation(const safe_ptr<basic_frame>& frame)              \r
  49         { \r
  50                 frames_.push_back(frame);\r
  51         }\r
  52         \r
  53         void accept(basic_frame& self, frame_visitor& visitor)\r
  54         {\r
  55                 visitor.begin(self);\r
  56                 BOOST_FOREACH(auto frame, frames_)\r
  57                         frame->accept(visitor);\r
  58                 visitor.end();\r
  59         }       \r
  60 \r
  61         std::wstring print() const\r
  62         {\r
  63                 std::wstring str = L"\tbasic_frame[\n";\r
  64                 BOOST_FOREACH(auto& frame, frames_)\r
  65                         str += frame->print() + L"\n";\r
  66                 str += L"\n]";\r
  67                 return str;\r
  68         }\r
  69 };\r
  70         \r
  71 basic_frame::basic_frame() : impl_(new implementation(std::vector<safe_ptr<basic_frame>>())){}\r
  72 basic_frame::basic_frame(const std::vector<safe_ptr<basic_frame>>& frames) : impl_(new implementation(frames)){}\r
  73 basic_frame::basic_frame(const basic_frame& other) : impl_(new implementation(*other.impl_)){}\r
  74 basic_frame::basic_frame(std::vector<safe_ptr<basic_frame>>&& frames) : impl_(new implementation(frames)){}\r
  75 basic_frame::basic_frame(const safe_ptr<basic_frame>& frame) : impl_(new implementation(frame)){}\r
  76 basic_frame::basic_frame(safe_ptr<basic_frame>&& frame)  : impl_(new implementation(std::move(frame))){}\r
  77 basic_frame::basic_frame(basic_frame&& other) : impl_(std::move(other.impl_)){}\r
  78 basic_frame& basic_frame::operator=(const basic_frame& other)\r
  79 {\r
  80         basic_frame temp(other);\r
  81         temp.swap(*this);\r
  82         return *this;\r
  83 }\r
  84 basic_frame& basic_frame::operator=(basic_frame&& other)\r
  85 {\r
  86         basic_frame temp(std::move(other));\r
  87         temp.swap(*this);\r
  88         return *this;\r
  89 }\r
  90 void basic_frame::swap(basic_frame& other){impl_.swap(other.impl_);}\r
  91 \r
  92 const frame_transform& basic_frame::get_frame_transform() const { return impl_->frame_transform_;}\r
  93 frame_transform& basic_frame::get_frame_transform() { return impl_->frame_transform_;}\r
  94 \r
  95 std::wstring basic_frame::print() const{return impl_->print();}\r
  96 void basic_frame::accept(frame_visitor& visitor){impl_->accept(*this, visitor);}\r
  97 \r
  98 safe_ptr<basic_frame> basic_frame::interlace(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2, field_mode::type mode)\r
  99 {                               \r
 100         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
 101                 return basic_frame::eof();\r
 102 \r
 103         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
 104                 return basic_frame::empty();\r
 105         \r
 106         if(frame1 == frame2 || mode == field_mode::progressive)\r
 107                 return frame2;\r
 108 \r
 109         auto my_frame1 = make_safe<basic_frame>(frame1);\r
 110         auto my_frame2 = make_safe<basic_frame>(frame2);\r
 111         if(mode == field_mode::upper)\r
 112         {\r
 113                 my_frame1->get_frame_transform().field_mode = field_mode::upper;        \r
 114                 my_frame2->get_frame_transform().field_mode = field_mode::lower;        \r
 115         }                                                                        \r
 116         else                                                             \r
 117         {                                                                        \r
 118                 my_frame1->get_frame_transform().field_mode = field_mode::lower;        \r
 119                 my_frame2->get_frame_transform().field_mode = field_mode::upper;        \r
 120         }\r
 121 \r
 122         std::vector<safe_ptr<basic_frame>> frames;\r
 123         frames.push_back(my_frame1);\r
 124         frames.push_back(my_frame2);\r
 125         return basic_frame(std::move(frames));\r
 126 }\r
 127 \r
 128 safe_ptr<basic_frame> basic_frame::combine(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2)\r
 129 {       \r
 130         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
 131                 return basic_frame::eof();\r
 132         \r
 133         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
 134                 return basic_frame::empty();\r
 135 \r
 136         std::vector<safe_ptr<basic_frame>> frames;\r
 137         frames.push_back(frame1);\r
 138         frames.push_back(frame2);\r
 139         return basic_frame(std::move(frames));\r
 140 }\r
 141 \r
 142 safe_ptr<basic_frame> basic_frame::fill_and_key(const safe_ptr<basic_frame>& fill, const safe_ptr<basic_frame>& key)\r
 143 {       \r
 144         if(fill == basic_frame::eof() || key == basic_frame::eof())\r
 145                 return basic_frame::eof();\r
 146 \r
 147         if(fill == basic_frame::empty() || key == basic_frame::empty())\r
 148                 return basic_frame::empty();\r
 149 \r
 150         std::vector<safe_ptr<basic_frame>> frames;\r
 151         key->get_frame_transform().is_key = true;\r
 152         frames.push_back(key);\r
 153         frames.push_back(fill);\r
 154         return basic_frame(std::move(frames));\r
 155 }\r
 156 \r
 157 safe_ptr<basic_frame> disable_audio(const safe_ptr<basic_frame>& frame)\r
 158 {\r
 159         basic_frame frame2 = frame;\r
 160         frame2.get_frame_transform().volume = 0.0;\r
 161         return std::move(frame2);\r
 162 }\r
 163         \r
 164 }}