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 #include <common/timer.h>
  30
  31 #include <core/frame/frame_visitor.h>
  32 #include <core/frame/pixel_format.h>
  33 #include <core/frame/geometry.h>
  34
  35 #include <cstdint>
  36 #include <vector>
  37
  38 #include <boost/lexical_cast.hpp>
  39 #include <boost/thread/future.hpp>
  40
  41 namespace caspar { namespace core {
  42
  43 struct mutable_frame::impl : boost::noncopyable
  44 {
  45         std::vector<array<std::uint8_t>>                        buffers_;
  46         core::audio_buffer                                                      audio_data_;
  47         const core::pixel_format_desc                           desc_;
  48         const void*                                                                     tag_;
  49         core::frame_geometry                                            geometry_                               = frame_geometry::get_default();
  50         caspar::timer                                                           since_created_timer_;
  51
  52         impl(std::vector<array<std::uint8_t>> buffers, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
  53                 : buffers_(std::move(buffers))
  54                 , audio_data_(std::move(audio_buffer))
  55                 , desc_(desc)
  56                 , tag_(tag)
  57         {
  58                 for (auto& buffer : buffers_)
  59                         if(!buffer.data())
  60                                 CASPAR_THROW_EXCEPTION(invalid_argument() << msg_info("mutable_frame: null argument"));
  61         }
  62 };
  63
  64 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)
  65         : impl_(new impl(std::move(image_buffers), std::move(audio_buffer), tag, desc)){}
  66 mutable_frame::~mutable_frame(){}
  67 mutable_frame::mutable_frame(mutable_frame&& other) : impl_(std::move(other.impl_)){}
  68 mutable_frame& mutable_frame::operator=(mutable_frame&& other)
  69 {
  70         impl_ = std::move(other.impl_);
  71         return *this;
  72 }
  73 void mutable_frame::swap(mutable_frame& other){impl_.swap(other.impl_);}
  74 const core::pixel_format_desc& mutable_frame::pixel_format_desc() const{return impl_->desc_;}
  75 const array<std::uint8_t>& mutable_frame::image_data(std::size_t index) const{return impl_->buffers_.at(index);}
  76 const core::audio_buffer& mutable_frame::audio_data() const{return impl_->audio_data_;}
  77 array<std::uint8_t>& mutable_frame::image_data(std::size_t index){return impl_->buffers_.at(index);}
  78 core::audio_buffer& mutable_frame::audio_data(){return impl_->audio_data_;}
  79 std::size_t mutable_frame::width() const{return impl_->desc_.planes.at(0).width;}
  80 std::size_t mutable_frame::height() const{return impl_->desc_.planes.at(0).height;}
  81 const void* mutable_frame::stream_tag()const{return impl_->tag_;}
  82 const void* mutable_frame::data_tag()const{return impl_.get();}
  83 const frame_geometry& mutable_frame::geometry() const { return impl_->geometry_; }
  84 void mutable_frame::set_geometry(const frame_geometry& g) { impl_->geometry_ = g; }
  85 caspar::timer mutable_frame::since_created() const { return impl_->since_created_timer_; }
  86
  87 const const_frame& const_frame::empty()
  88 {
  89         static int dummy;
  90         static const_frame empty(&dummy);
  91         return empty;
  92 }
  93
  94 struct const_frame::impl : boost::noncopyable
  95 {
  96         mutable std::vector<std::shared_future<array<const std::uint8_t>>>      future_buffers_;
  97         core::audio_buffer                                                                                                      audio_data_;
  98         const core::pixel_format_desc                                                                           desc_;
  99         const void*                                                                                                                     tag_;
 100         core::frame_geometry                                                                                            geometry_;
 101         caspar::timer                                                                                                           since_created_timer_;
 102         bool                                                                                                                            should_record_age_;
 103         mutable tbb::atomic<int64_t>                                                                            recorded_age_;
 104
 105         impl(const void* tag)
 106                 : desc_(core::pixel_format::invalid)
 107                 , tag_(tag)
 108                 , geometry_(frame_geometry::get_default())
 109                 , should_record_age_(true)
 110         {
 111                 recorded_age_ = 0;
 112         }
 113
 114         impl(std::shared_future<array<const std::uint8_t>> image, audio_buffer audio_buffer, const void* tag, const core::pixel_format_desc& desc)
 115                 : audio_data_(std::move(audio_buffer))
 116                 , desc_(desc)
 117                 , tag_(tag)
 118                 , geometry_(frame_geometry::get_default())
 119                 , should_record_age_(false)
 120         {
 121                 if (desc.format != core::pixel_format::bgra)
 122                         CASPAR_THROW_EXCEPTION(not_implemented());
 123
 124                 future_buffers_.push_back(std::move(image));
 125         }
 126
 127         impl(mutable_frame&& other)
 128                 : audio_data_(other.audio_data())
 129                 , desc_(other.pixel_format_desc())
 130                 , tag_(other.stream_tag())
 131                 , geometry_(other.geometry())
 132                 , since_created_timer_(other.since_created())
 133                 , should_record_age_(true)
 134         {
 135                 for (std::size_t n = 0; n < desc_.planes.size(); ++n)
 136                 {
 137                         future_buffers_.push_back(make_ready_future<array<const std::uint8_t>>(std::move(other.image_data(n))).share());
 138                 }
 139
 140                 recorded_age_ = -1;
 141         }
 142
 143         array<const std::uint8_t> image_data(int index) const
 144         {
 145                 return tag_ != empty().stream_tag() ? future_buffers_.at(index).get() : array<const std::uint8_t>(nullptr, 0, true, 0);
 146         }
 147
 148         std::size_t width() const
 149         {
 150                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).width : 0;
 151         }
 152
 153         std::size_t height() const
 154         {
 155                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).height : 0;
 156         }
 157
 158         std::size_t size() const
 159         {
 160                 return tag_ != empty().stream_tag() ? desc_.planes.at(0).size : 0;
 161         }
 162
 163         int64_t get_age_millis() const
 164         {
 165                 if (should_record_age_)
 166                 {
 167                         if (recorded_age_ == -1)
 168                                 recorded_age_ = static_cast<int64_t>(since_created_timer_.elapsed() * 1000.0);
 169
 170                         return recorded_age_;
 171                 }
 172                 else
 173                         return static_cast<int64_t>(since_created_timer_.elapsed() * 1000.0);
 174         }
 175 };
 176
 177 const_frame::const_frame(const void* tag) : impl_(new impl(tag)){}
 178 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)
 179         : impl_(new impl(std::move(image), std::move(audio_buffer), tag, desc)){}
 180 const_frame::const_frame(mutable_frame&& other) : impl_(new impl(std::move(other))){}
 181 const_frame::~const_frame(){}
 182 const_frame::const_frame(const_frame&& other) : impl_(std::move(other.impl_)){}
 183 const_frame& const_frame::operator=(const_frame&& other)
 184 {
 185         impl_ = std::move(other.impl_);
 186         return *this;
 187 }
 188 const_frame::const_frame(const const_frame& other) : impl_(other.impl_){}
 189 const_frame& const_frame::operator=(const const_frame& other)
 190 {
 191         impl_ = other.impl_;
 192         return *this;
 193 }
 194 bool const_frame::operator==(const const_frame& other){return impl_ == other.impl_;}
 195 bool const_frame::operator!=(const const_frame& other){return !(*this == other);}
 196 bool const_frame::operator<(const const_frame& other){return impl_ < other.impl_;}
 197 bool const_frame::operator>(const const_frame& other){return impl_ > other.impl_;}
 198 const core::pixel_format_desc& const_frame::pixel_format_desc()const{return impl_->desc_;}
 199 array<const std::uint8_t> const_frame::image_data(int index)const{return impl_->image_data(index);}
 200 const core::audio_buffer& const_frame::audio_data()const{return impl_->audio_data_;}
 201 std::size_t const_frame::width()const{return impl_->width();}
 202 std::size_t const_frame::height()const{return impl_->height();}
 203 std::size_t const_frame::size()const{return impl_->size();}
 204 const void* const_frame::stream_tag()const{return impl_->tag_;}
 205 const void* const_frame::data_tag()const{return impl_.get();}
 206 const frame_geometry& const_frame::geometry() const { return impl_->geometry_; }
 207 void const_frame::set_geometry(const frame_geometry& g) { impl_->geometry_ = g; }
 208 int64_t const_frame::get_age_millis() const { return impl_->get_age_millis(); }
 209
 210 }}