src/lib/raw_image_proxy.cc

   1 /*
   2     Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic 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 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21
  22 #include "raw_image_proxy.h"
  23 #include "image.h"
  24 #include <dcp/raw_convert.h>
  25 #include <dcp/util.h>
  26 #include <dcp/warnings.h>
  27 #include <libcxml/cxml.h>
  28 extern "C" {
  29 #include <libavutil/pixfmt.h>
  30 }
  31 LIBDCP_DISABLE_WARNINGS
  32 #include <libxml++/libxml++.h>
  33 LIBDCP_ENABLE_WARNINGS
  34
  35 #include "i18n.h"
  36
  37
  38 using std::dynamic_pointer_cast;
  39 using std::make_pair;
  40 using std::make_shared;
  41 using std::pair;
  42 using std::shared_ptr;
  43 using std::string;
  44 using boost::optional;
  45 using dcp::raw_convert;
  46
  47
  48 RawImageProxy::RawImageProxy(shared_ptr<const Image> image)
  49         : _image (image)
  50 {
  51
  52 }
  53
  54
  55 RawImageProxy::RawImageProxy (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket)
  56 {
  57         dcp::Size size (
  58                 xml->number_child<int>("Width"), xml->number_child<int>("Height")
  59                 );
  60
  61         auto image = make_shared<Image>(static_cast<AVPixelFormat>(xml->number_child<int>("PixelFormat")), size, Image::Alignment::PADDED);
  62         image->read_from_socket (socket);
  63         _image = image;
  64 }
  65
  66
  67 ImageProxy::Result
  68 RawImageProxy::image (Image::Alignment alignment, optional<dcp::Size>) const
  69 {
  70         /* This ensure_alignment could be wasteful */
  71         return Result (Image::ensure_alignment(_image, alignment), 0);
  72 }
  73
  74
  75 void
  76 RawImageProxy::add_metadata (xmlpp::Node* node) const
  77 {
  78         node->add_child("Type")->add_child_text(N_("Raw"));
  79         node->add_child("Width")->add_child_text(raw_convert<string>(_image->size().width));
  80         node->add_child("Height")->add_child_text(raw_convert<string>(_image->size().height));
  81         node->add_child("PixelFormat")->add_child_text(raw_convert<string>(static_cast<int>(_image->pixel_format())));
  82 }
  83
  84
  85 void
  86 RawImageProxy::write_to_socket (shared_ptr<Socket> socket) const
  87 {
  88         _image->write_to_socket (socket);
  89 }
  90
  91
  92 bool
  93 RawImageProxy::same (shared_ptr<const ImageProxy> other) const
  94 {
  95         auto rp = dynamic_pointer_cast<const RawImageProxy> (other);
  96         if (!rp) {
  97                 return false;
  98         }
  99
 100         return (*_image.get()) == (*rp->image(_image->alignment()).image.get());
 101 }
 102
 103
 104 size_t
 105 RawImageProxy::memory_used () const
 106 {
 107         return _image->memory_used ();
 108 }