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

   1 /*\r
   2 * Copyright 2013 Sveriges Television AB http://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 public:\r
  39         implementation(const std::vector<safe_ptr<basic_frame>>& frames) : frames_(frames) \r
  40         {\r
  41         }\r
  42         implementation(std::vector<safe_ptr<basic_frame>>&& frames) : frames_(std::move(frames))\r
  43         {\r
  44         }\r
  45         implementation(safe_ptr<basic_frame>&& frame) \r
  46         {\r
  47                 frames_.push_back(std::move(frame));\r
  48         }\r
  49         implementation(const safe_ptr<basic_frame>& frame)              \r
  50         { \r
  51                 frames_.push_back(frame);\r
  52         }\r
  53 \r
  54         int64_t get_and_record_age_millis(const basic_frame& self)\r
  55         {\r
  56                 int64_t result = 0;\r
  57 \r
  58                 BOOST_FOREACH(auto& frame, frames_)\r
  59                 {\r
  60                         if (is_concrete_frame(frame) && frame.get() != &self)\r
  61                                 result = std::max(result, frame->get_and_record_age_millis());\r
  62                 }\r
  63 \r
  64                 return result;\r
  65         }\r
  66         \r
  67         void accept(basic_frame& self, frame_visitor& visitor)\r
  68         {\r
  69                 visitor.begin(self);\r
  70                 BOOST_FOREACH(auto frame, frames_)\r
  71                         frame->accept(visitor);\r
  72                 visitor.end();\r
  73         }       \r
  74 };\r
  75         \r
  76 basic_frame::basic_frame() : impl_(new implementation(std::vector<safe_ptr<basic_frame>>())){}\r
  77 basic_frame::basic_frame(const std::vector<safe_ptr<basic_frame>>& frames) : impl_(new implementation(frames)){}\r
  78 basic_frame::basic_frame(const basic_frame& other) : impl_(new implementation(*other.impl_)){}\r
  79 basic_frame::basic_frame(std::vector<safe_ptr<basic_frame>>&& frames) : impl_(new implementation(frames)){}\r
  80 basic_frame::basic_frame(const safe_ptr<basic_frame>& frame) : impl_(new implementation(frame)){}\r
  81 basic_frame::basic_frame(safe_ptr<basic_frame>&& frame)  : impl_(new implementation(std::move(frame))){}\r
  82 basic_frame::basic_frame(basic_frame&& other) : impl_(std::move(other.impl_)){}\r
  83 basic_frame& basic_frame::operator=(const basic_frame& other)\r
  84 {\r
  85         basic_frame temp(other);\r
  86         temp.swap(*this);\r
  87         return *this;\r
  88 }\r
  89 basic_frame& basic_frame::operator=(basic_frame&& other)\r
  90 {\r
  91         basic_frame temp(std::move(other));\r
  92         temp.swap(*this);\r
  93         return *this;\r
  94 }\r
  95 void basic_frame::swap(basic_frame& other){impl_.swap(other.impl_);}\r
  96 \r
  97 const frame_transform& basic_frame::get_frame_transform() const { return impl_->frame_transform_;}\r
  98 frame_transform& basic_frame::get_frame_transform() { return impl_->frame_transform_;}\r
  99 int64_t basic_frame::get_and_record_age_millis() { return impl_->get_and_record_age_millis(*this); }\r
 100 void basic_frame::accept(frame_visitor& visitor){impl_->accept(*this, visitor);}\r
 101 \r
 102 safe_ptr<basic_frame> basic_frame::interlace(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2, field_mode::type mode)\r
 103 {                               \r
 104         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
 105                 return basic_frame::eof();\r
 106 \r
 107         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
 108                 return basic_frame::empty();\r
 109         \r
 110         if(frame1 == frame2 || mode == field_mode::progressive)\r
 111                 return frame2;\r
 112 \r
 113         auto my_frame1 = make_safe<basic_frame>(frame1);\r
 114         auto my_frame2 = make_safe<basic_frame>(frame2);\r
 115         if(mode == field_mode::upper)\r
 116         {\r
 117                 my_frame1->get_frame_transform().field_mode = field_mode::upper;        \r
 118                 my_frame2->get_frame_transform().field_mode = field_mode::lower;        \r
 119         }                                                                        \r
 120         else                                                             \r
 121         {                                                                        \r
 122                 my_frame1->get_frame_transform().field_mode = field_mode::lower;        \r
 123                 my_frame2->get_frame_transform().field_mode = field_mode::upper;        \r
 124         }\r
 125 \r
 126         std::vector<safe_ptr<basic_frame>> frames;\r
 127         frames.push_back(my_frame1);\r
 128         frames.push_back(my_frame2);\r
 129         return make_safe<basic_frame>(std::move(frames));\r
 130 }\r
 131 \r
 132 safe_ptr<basic_frame> basic_frame::combine(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2)\r
 133 {       \r
 134         if(frame1 == basic_frame::eof() || frame2 == basic_frame::eof())\r
 135                 return basic_frame::eof();\r
 136         \r
 137         if(frame1 == basic_frame::empty() && frame2 == basic_frame::empty())\r
 138                 return basic_frame::empty();\r
 139 \r
 140         std::vector<safe_ptr<basic_frame>> frames;\r
 141         frames.push_back(frame1);\r
 142         frames.push_back(frame2);\r
 143         return make_safe<basic_frame>(std::move(frames));\r
 144 }\r
 145 \r
 146 safe_ptr<basic_frame> basic_frame::fill_and_key(const safe_ptr<basic_frame>& fill, const safe_ptr<basic_frame>& key)\r
 147 {       \r
 148         if(fill == basic_frame::eof() || key == basic_frame::eof())\r
 149                 return basic_frame::eof();\r
 150 \r
 151         if(fill == basic_frame::empty() || key == basic_frame::empty())\r
 152                 return basic_frame::empty();\r
 153 \r
 154         std::vector<safe_ptr<basic_frame>> frames;\r
 155         key->get_frame_transform().is_key = true;\r
 156         frames.push_back(key);\r
 157         frames.push_back(fill);\r
 158         return make_safe<basic_frame>(std::move(frames));\r
 159 }\r
 160 \r
 161 safe_ptr<basic_frame> disable_audio(const safe_ptr<basic_frame>& frame)\r
 162 {\r
 163         if(frame == basic_frame::empty())\r
 164                 return frame;\r
 165 \r
 166         basic_frame frame2 = frame;\r
 167         frame2.get_frame_transform().volume = 0.0;\r
 168         return make_safe<basic_frame>(std::move(frame2));\r
 169 }\r
 170         \r
 171 }}