src/reel.cc

   1 /*
   2     Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "reel.h"
  21 #include "util.h"
  22 #include "picture_mxf.h"
  23 #include "mono_picture_mxf.h"
  24 #include "stereo_picture_mxf.h"
  25 #include "sound_mxf.h"
  26 #include "subtitle_content.h"
  27 #include "reel_mono_picture_asset.h"
  28 #include "reel_stereo_picture_asset.h"
  29 #include "reel_sound_asset.h"
  30 #include "reel_subtitle_asset.h"
  31 #include "decrypted_kdm_key.h"
  32 #include "decrypted_kdm.h"
  33 #include <libxml++/nodes/element.h>
  34
  35 using std::string;
  36 using std::list;
  37 using std::cout;
  38 using boost::shared_ptr;
  39 using boost::dynamic_pointer_cast;
  40 using namespace dcp;
  41
  42 Reel::Reel (boost::shared_ptr<const cxml::Node> node)
  43         : Object (node->string_child ("Id"))
  44 {
  45         shared_ptr<cxml::Node> asset_list = node->node_child ("AssetList");
  46
  47         shared_ptr<cxml::Node> main_picture = asset_list->optional_node_child ("MainPicture");
  48         if (main_picture) {
  49                 _main_picture.reset (new ReelMonoPictureAsset (main_picture));
  50         }
  51
  52         shared_ptr<cxml::Node> main_stereoscopic_picture = asset_list->optional_node_child ("MainStereoscopicPicture");
  53         if (main_stereoscopic_picture) {
  54                 _main_picture.reset (new ReelStereoPictureAsset (main_stereoscopic_picture));
  55         }
  56
  57         shared_ptr<cxml::Node> main_sound = asset_list->optional_node_child ("MainSound");
  58         if (main_sound) {
  59                 _main_sound.reset (new ReelSoundAsset (main_sound));
  60         }
  61
  62         shared_ptr<cxml::Node> main_subtitle = asset_list->optional_node_child ("MainSubtitle");
  63         if (main_subtitle) {
  64                 _main_subtitle.reset (new ReelSubtitleAsset (main_subtitle));
  65         }
  66
  67         node->ignore_child ("AnnotationText");
  68         node->done ();
  69 }
  70
  71 void
  72 Reel::write_to_cpl (xmlpp::Element* node, Standard standard) const
  73 {
  74         xmlpp::Element* reel = node->add_child ("Reel");
  75         reel->add_child("Id")->add_child_text ("urn:uuid:" + make_uuid());
  76         xmlpp::Element* asset_list = reel->add_child ("AssetList");
  77
  78         if (_main_picture && dynamic_pointer_cast<ReelMonoPictureAsset> (_main_picture)) {
  79                 /* Mono pictures come before other stuff... */
  80                 _main_picture->write_to_cpl (asset_list, standard);
  81         }
  82
  83         if (_main_sound) {
  84                 _main_sound->write_to_cpl (asset_list, standard);
  85         }
  86
  87         if (_main_subtitle) {
  88                 _main_subtitle->write_to_cpl (asset_list, standard);
  89         }
  90
  91         if (_main_picture && dynamic_pointer_cast<ReelStereoPictureAsset> (_main_picture)) {
  92                 /* ... but stereo pictures must come after */
  93                 _main_picture->write_to_cpl (asset_list, standard);
  94         }
  95 }
  96
  97 bool
  98 Reel::equals (boost::shared_ptr<const Reel> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
  99 {
 100         if ((_main_picture && !other->_main_picture) || (!_main_picture && other->_main_picture)) {
 101                 note (ERROR, "reel has different assets");
 102                 return false;
 103         }
 104
 105         if (_main_picture && !_main_picture->equals (other->_main_picture, opt, note)) {
 106                 return false;
 107         }
 108
 109         if ((_main_sound && !other->_main_sound) || (!_main_sound && other->_main_sound)) {
 110                 note (ERROR, "reel has different assets");
 111                 return false;
 112         }
 113
 114         if (_main_sound && !_main_sound->equals (other->_main_sound, opt, note)) {
 115                 return false;
 116         }
 117
 118         if ((_main_subtitle && !other->_main_subtitle) || (!_main_subtitle && other->_main_subtitle)) {
 119                 note (ERROR, "reel has different assets");
 120                 return false;
 121         }
 122
 123         if (_main_subtitle && !_main_subtitle->equals (other->_main_subtitle, opt, note)) {
 124                 return false;
 125         }
 126
 127         return true;
 128 }
 129
 130 bool
 131 Reel::encrypted () const
 132 {
 133         return ((_main_picture && _main_picture->encrypted ()) || (_main_sound && _main_sound->encrypted ()));
 134 }
 135
 136 void
 137 Reel::add (DecryptedKDM const & kdm)
 138 {
 139         list<DecryptedKDMKey> keys = kdm.keys ();
 140
 141         for (list<DecryptedKDMKey>::iterator i = keys.begin(); i != keys.end(); ++i) {
 142                 if (i->id() == _main_picture->key_id()) {
 143                         _main_picture->mxf()->set_key (i->key ());
 144                 }
 145                 if (i->id() == _main_sound->key_id()) {
 146                         _main_sound->mxf()->set_key (i->key ());
 147                 }
 148         }
 149 }
 150
 151 void
 152 Reel::set_mxf_keys (Key key)
 153 {
 154         _main_picture->mxf()->set_key (key);
 155         if (_main_sound) {
 156                 _main_sound->mxf()->set_key (key);
 157         }
 158
 159         /* XXX: subtitle asset? */
 160 }
 161
 162 void
 163 Reel::add (shared_ptr<ReelAsset> asset)
 164 {
 165         shared_ptr<ReelPictureAsset> p = dynamic_pointer_cast<ReelPictureAsset> (asset);
 166         shared_ptr<ReelSoundAsset> so = dynamic_pointer_cast<ReelSoundAsset> (asset);
 167         shared_ptr<ReelSubtitleAsset> su = dynamic_pointer_cast<ReelSubtitleAsset> (asset);
 168         if (p) {
 169                 _main_picture = p;
 170         } else if (so) {
 171                 _main_sound = so;
 172         } else if (su) {
 173                 _main_subtitle = su;
 174         }
 175 }
 176
 177 void
 178 Reel::resolve_refs (list<shared_ptr<Object> > objects)
 179 {
 180         if (_main_picture) {
 181                 _main_picture->content().resolve (objects);
 182         }
 183
 184         if (_main_sound) {
 185                 _main_sound->content().resolve (objects);
 186         }
 187
 188         if (_main_subtitle) {
 189                 _main_subtitle->content().resolve (objects);
 190         }
 191 }