git.sesse.net Git - casparcg/blob - core/producer/frame/basic_frame.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../../stdafx.h"\r
  23 \r
  24 #include "basic_frame.h"\r
  25 \r
  26 #include "frame_transform.h"\r
  27 #include "../../video_format.h"\r
  28 \r
  29 #include <boost/foreach.hpp>\r
  30 \r
  31 namespace caspar { namespace core {\r
  32                                                                                                                                                                                                                                                                                                                 \r
  33 struct basic_frame::implementation\r
  34 {               \r
  35         std::vector<safe_ptr<basic_frame>> frames_;\r
  36 \r
  37         frame_transform frame_transform_;       \r
  38         \r
  39 public:\r
  40         implementation(const std::vector<safe_ptr<basic_frame>>& frames) : frames_(frames) \r
  41         {\r
  42         }\r
  43         implementation(std::vector<safe_ptr<basic_frame>>&& frames) : frames_(std::move(frames))\r
  44         {\r
  45         }\r
  46         implementation(safe_ptr<basic_frame>&& frame) \r
  47         {\r
  48                 frames_.push_back(std::move(frame));\r
  49         }\r
  50         implementation(const safe_ptr<basic_frame>& frame)              \r
  51         { \r
  52                 frames_.push_back(frame);\r
  53         }\r
  54         \r
  55         void accept(basic_frame& self, frame_visitor& visitor)\r
  56         {\r
  57                 visitor.begin(self);\r
  58                 BOOST_FOREACH(auto frame, frames_)\r
  59                         frame->accept(visitor);\r
  60                 visitor.end();\r
  61         }       \r
  62 };\r
  63         \r
  64 basic_frame::basic_frame() : impl_(new implementation(std::vector<safe_ptr<basic_frame>>())){}\r
  65 basic_frame::basic_frame(const std::vector<safe_ptr<basic_frame>>& frames) : impl_(new implementation(frames)){}\r
  66 basic_frame::basic_frame(const basic_frame& other) : impl_(new implementation(*other.impl_)){}\r
  67 basic_frame::basic_frame(std::vector<safe_ptr<basic_frame>>&& frames) : impl_(new implementation(frames)){}\r
  68 basic_frame::basic_frame(const safe_ptr<basic_frame>& frame) : impl_(new implementation(frame)){}\r
  69 basic_frame::basic_frame(safe_ptr<basic_frame>&& frame)  : impl_(new implementation(std::move(frame))){}\r
  70 basic_frame::basic_frame(basic_frame&& other) : impl_(std::move(other.impl_)){}\r
  71 basic_frame& basic_frame::operator=(const basic_frame& other)\r
  72 {\r
  73         basic_frame temp(other);\r
  74         temp.swap(*this);\r
  75         return *this;\r
  76 }\r
  77 basic_frame& basic_frame::operator=(basic_frame&& other)\r
  78 {\r
  79         basic_frame temp(std::move(other));\r
  80         temp.swap(*this);\r
  81         return *this;\r
  82 }\r
  83 void basic_frame::swap(basic_frame& other){impl_.swap(other.impl_);}\r
  84 \r
  85 const frame_transform& basic_frame::get_frame_transform() const { return impl_->frame_transform_;}\r
  86 frame_transform& basic_frame::get_frame_transform() { return impl_->frame_transform_;}\r
  87 void basic_frame::accept(frame_visitor& visitor){impl_->accept(*this, visitor);}\r
  88 \r
  89 safe_ptr<basic_frame> basic_frame::interlace(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2, field_mode::type mode)\r
  90 {                               \r
  91         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
  92                 return basic_frame::eof();\r
  93 \r
  94         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
  95                 return basic_frame::empty();\r
  96         \r
  97         if(frame1 == frame2 || mode == field_mode::progressive)\r
  98                 return frame2;\r
  99 \r
 100         auto my_frame1 = make_safe<basic_frame>(frame1);\r
 101         auto my_frame2 = make_safe<basic_frame>(frame2);\r
 102         if(mode == field_mode::upper)\r
 103         {\r
 104                 my_frame1->get_frame_transform().field_mode = field_mode::upper;        \r
 105                 my_frame2->get_frame_transform().field_mode = field_mode::lower;        \r
 106         }                                                                        \r
 107         else                                                             \r
 108         {                                                                        \r
 109                 my_frame1->get_frame_transform().field_mode = field_mode::lower;        \r
 110                 my_frame2->get_frame_transform().field_mode = field_mode::upper;        \r
 111         }\r
 112 \r
 113         std::vector<safe_ptr<basic_frame>> frames;\r
 114         frames.push_back(my_frame1);\r
 115         frames.push_back(my_frame2);\r
 116         return make_safe<basic_frame>(std::move(frames));\r
 117 }\r
 118 \r
 119 safe_ptr<basic_frame> basic_frame::combine(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2)\r
 120 {       \r
 121         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
 122                 return basic_frame::eof();\r
 123         \r
 124         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
 125                 return basic_frame::empty();\r
 126 \r
 127         std::vector<safe_ptr<basic_frame>> frames;\r
 128         frames.push_back(frame1);\r
 129         frames.push_back(frame2);\r
 130         return make_safe<basic_frame>(std::move(frames));\r
 131 }\r
 132 \r
 133 safe_ptr<basic_frame> basic_frame::fill_and_key(const safe_ptr<basic_frame>& fill, const safe_ptr<basic_frame>& key)\r
 134 {       \r
 135         if(fill == basic_frame::eof() || key == basic_frame::eof())\r
 136                 return basic_frame::eof();\r
 137 \r
 138         if(fill == basic_frame::empty() || key == basic_frame::empty())\r
 139                 return basic_frame::empty();\r
 140 \r
 141         std::vector<safe_ptr<basic_frame>> frames;\r
 142         key->get_frame_transform().is_key = true;\r
 143         frames.push_back(key);\r
 144         frames.push_back(fill);\r
 145         return make_safe<basic_frame>(std::move(frames));\r
 146 }\r
 147 \r
 148 safe_ptr<basic_frame> disable_audio(const safe_ptr<basic_frame>& frame)\r
 149 {\r
 150         basic_frame frame2 = frame;\r
 151         frame2.get_frame_transform().volume = 0.0;\r
 152         return make_safe<basic_frame>(std::move(frame2));\r
 153 }\r
 154         \r
 155 }}