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

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "../stdafx.h"
  23
  24 #include "frame.h"
  25
  26 #include <common/except.h>
  27 #include <common/array.h>
  28 #include <common/future.h>
  29
  30 #include <core/frame/frame_visitor.h>
  31 #include <core/frame/pixel_format.h>
  32 #include <core/frame/geometry.h>
  33
  34 #include <boost/lexical_cast.hpp>
  35 #include <boost/thread/future.hpp>
  36
  37 namespace caspar { namespace core {
  38
  39 struct mutable_frame::impl : boost::noncopyable
  40 {
  41         std::vector<array<std::uint8_t>>                        buffers_;
  42         core::audio_buffer                                                      audio_data_;
  43         const core::pixel_format_desc                           desc_;
  44         const void*                                                                     tag_;
  45         core::frame_geometry                                            geometry_;
  46
  47         impl(std::vector<array<std::uint8_t>> buffers, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
  48                 : buffers_(std::move(buffers))
  49                 , audio_data_(std::move(audio_buffer))
  50                 , desc_(desc)
  51                 , tag_(tag)
  52                 , geometry_(frame_geometry::get_default())
  53         {
  54                 for (auto& buffer : buffers_)
  55                         if(!buffer.data())
  56                                 CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("mutable_frame: null argument"));
  57         }
  58 };
  59
  60 mutable_frame::mutable_frame(std::vector<array<std::uint8_t>> image_buffers, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
  61         : impl_(new impl(std::move(image_buffers), std::move(audio_buffer), tag, desc)){}
  62 mutable_frame::~mutable_frame(){}
  63 mutable_frame::mutable_frame(mutable_frame&& other) : impl_(std::move(other.impl_)){}
  64 mutable_frame& mutable_frame::operator=(mutable_frame&& other)
  65 {
  66         impl_ = std::move(other.impl_);
  67         return *this;
  68 }
  69 void mutable_frame::swap(mutable_frame& other){impl_.swap(other.impl_);}
  70 const core::pixel_format_desc& mutable_frame::pixel_format_desc() const{return impl_->desc_;}
  71 const array<std::uint8_t>& mutable_frame::image_data(std::size_t index) const{return impl_->buffers_.at(index);}
  72 const core::audio_buffer& mutable_frame::audio_data() const{return impl_->audio_data_;}
  73 array<std::uint8_t>& mutable_frame::image_data(std::size_t index){return impl_->buffers_.at(index);}
  74 core::audio_buffer& mutable_frame::audio_data(){return impl_->audio_data_;}
  75 std::size_t mutable_frame::width() const{return impl_->desc_.planes.at(0).width;}
  76 std::size_t mutable_frame::height() const{return impl_->desc_.planes.at(0).height;}
  77 const void* mutable_frame::stream_tag()const{return impl_->tag_;}
  78 const void* mutable_frame::data_tag()const{return impl_.get();}
  79 const frame_geometry& mutable_frame::geometry() const { return impl_->geometry_; }
  80 void mutable_frame::set_geometry(const frame_geometry& g) { impl_->geometry_ = g; }
  81
  82 const const_frame& const_frame::empty()
  83 {
  84         static int dummy;
  85         static const_frame empty(&dummy);
  86         return empty;
  87 }
  88
  89 struct const_frame::impl : boost::noncopyable
  90 {
  91         mutable std::vector<std::shared_future<array<const std::uint8_t>>>      future_buffers_;
  92         int                                                                                     id_;
  93         core::audio_buffer                                                      audio_data_;
  94         const core::pixel_format_desc                           desc_;
  95         const void*                                                                     tag_;
  96         core::frame_geometry                                            geometry_;
  97
  98         impl(const void* tag)
  99                 : desc_(core::pixel_format::invalid)
 100                 , tag_(tag)
 101                 , id_(0)
 102                 , geometry_(frame_geometry::get_default())
 103         {
 104         }
 105
 106         impl(std::shared_future<array<const std::uint8_t>> image, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
 107                 : audio_data_(std::move(audio_buffer))
 108                 , desc_(desc)
 109                 , tag_(tag)
 110                 , id_(reinterpret_cast<int>(this))
 111                 , geometry_(frame_geometry::get_default())
 112         {
 113                 if(desc.format != core::pixel_format::bgra)
 114                         CASPAR_THROW_EXCEPTION(not_implemented());
 115
 116                 future_buffers_.push_back(std::move(image));
 117         }
 118
 119         impl(mutable_frame&& other)
 120                 : audio_data_(other.audio_data())
 121                 , desc_(other.pixel_format_desc())
 122                 , tag_(other.stream_tag())
 123                 , id_(reinterpret_cast<int>(this))
 124                 , geometry_(other.geometry())
 125         {
 126                 for(std::size_t n = 0; n < desc_.planes.size(); ++n)
 127                 {
 128                         future_buffers_.push_back(make_ready_future<array<const std::uint8_t>>(std::move(other.image_data(n))).share());
 129                 }
 130         }
 131
 132         array<const std::uint8_t> image_data(int index) const
 133         {
 134                 return tag_ != empty().stream_tag() ? future_buffers_.at(index).get() : array<const std::uint8_t>(nullptr, 0, true, 0);
 135         }
 136
 137         std::size_t width() const
 138         {
 139                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).width : 0;
 140         }
 141
 142         std::size_t height() const
 143         {
 144                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).height : 0;
 145         }
 146
 147         std::size_t size() const
 148         {
 149                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).size : 0;
 150         }
 151 };
 152
 153 const_frame::const_frame(const void* tag) : impl_(new impl(tag)){}
 154 const_frame::const_frame(std::shared_future<array<const std::uint8_t>> image, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
 155         : impl_(new impl(std::move(image), std::move(audio_buffer), tag, desc)){}
 156 const_frame::const_frame(mutable_frame&& other) : impl_(new impl(std::move(other))){}
 157 const_frame::~const_frame(){}
 158 const_frame::const_frame(const_frame&& other) : impl_(std::move(other.impl_)){}
 159 const_frame& const_frame::operator=(const_frame&& other)
 160 {
 161         impl_ = std::move(other.impl_);
 162         return *this;
 163 }
 164 const_frame::const_frame(const const_frame& other) : impl_(other.impl_){}
 165 const_frame& const_frame::operator=(const const_frame& other)
 166 {
 167         impl_ = other.impl_;
 168         return *this;
 169 }
 170 bool const_frame::operator==(const const_frame& other){return impl_ == other.impl_;}
 171 bool const_frame::operator!=(const const_frame& other){return !(*this == other);}
 172 bool const_frame::operator<(const const_frame& other){return impl_< other.impl_;}
 173 bool const_frame::operator>(const const_frame& other){return impl_> other.impl_;}
 174 const core::pixel_format_desc& const_frame::pixel_format_desc()const{return impl_->desc_;}
 175 array<const std::uint8_t> const_frame::image_data(int index)const{return impl_->image_data(index);}
 176 const core::audio_buffer& const_frame::audio_data()const{return impl_->audio_data_;}
 177 std::size_t const_frame::width()const{return impl_->width();}
 178 std::size_t const_frame::height()const{return impl_->height();}
 179 std::size_t const_frame::size()const{return impl_->size();}
 180 const void* const_frame::stream_tag()const{return impl_->tag_;}
 181 const void* const_frame::data_tag()const{return impl_.get();}
 182 const frame_geometry& const_frame::geometry() const { return impl_->geometry_; }
 183 void const_frame::set_geometry(const frame_geometry& g) { impl_->geometry_ = g; }
 184
 185 }}