2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
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.
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.
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.
20 /** @file src/reel_picture_asset.h
21 * @brief ReelPictureAsset class.
24 #include "reel_picture_asset.h"
25 #include "picture_asset.h"
26 #include "dcp_assert.h"
27 #include "compose.hpp"
28 #include <libcxml/cxml.h>
29 #include <libxml++/libxml++.h>
34 using std::stringstream;
35 using boost::shared_ptr;
36 using boost::dynamic_pointer_cast;
39 ReelPictureAsset::ReelPictureAsset ()
40 : _frame_rate (Fraction (24, 1))
41 , _screen_aspect_ratio (Fraction (1998, 1080))
46 ReelPictureAsset::ReelPictureAsset (shared_ptr<PictureAsset> asset, int64_t entry_point)
47 : ReelEncryptableAsset (asset, asset->key_id(), asset->edit_rate(), asset->intrinsic_duration(), entry_point)
48 , _frame_rate (asset->frame_rate ())
49 , _screen_aspect_ratio (asset->screen_aspect_ratio ())
54 ReelPictureAsset::ReelPictureAsset (shared_ptr<const cxml::Node> node)
55 : ReelEncryptableAsset (node)
57 _frame_rate = Fraction (node->string_child ("FrameRate"));
59 _screen_aspect_ratio = Fraction (node->string_child ("ScreenAspectRatio"));
60 } catch (XMLError& e) {
61 /* Maybe it's not a fraction */
64 float f = node->number_child<float> ("ScreenAspectRatio");
65 _screen_aspect_ratio = Fraction (f * 1000, 1000);
66 } catch (bad_cast& e) {
72 ReelPictureAsset::write_to_cpl (xmlpp::Node* node, Standard standard) const
74 ReelAsset::write_to_cpl (node, standard);
76 /* Find <MainPicture> */
77 xmlpp::Node* mp = find_child (node, cpl_node_name ());
79 mp->add_child ("FrameRate")->add_child_text (String::compose ("%1 %2", _frame_rate.numerator, _frame_rate.denominator));
80 if (standard == INTEROP) {
82 s << std::fixed << std::setprecision (2) << (float (_screen_aspect_ratio.numerator) / _screen_aspect_ratio.denominator);
83 mp->add_child ("ScreenAspectRatio")->add_child_text (s.str ());
85 mp->add_child ("ScreenAspectRatio")->add_child_text (
86 String::compose ("%1 %2", _screen_aspect_ratio.numerator, _screen_aspect_ratio.denominator)
90 if (!key_id ().empty ()) {
92 xmlpp::Node* hash = find_child (mp, "Hash");
93 mp->add_child_before (hash, "KeyId")->add_child_text ("urn:uuid:" + key_id ());
98 ReelPictureAsset::key_type () const
104 ReelPictureAsset::equals (shared_ptr<const ReelAsset> other, EqualityOptions opt, NoteHandler note) const
106 if (!ReelAsset::equals (other, opt, note)) {
110 shared_ptr<const ReelPictureAsset> rpa = dynamic_pointer_cast<const ReelPictureAsset> (other);
115 if (_frame_rate != rpa->_frame_rate) {
116 note (DCP_ERROR, "frame rates differ in reel");
120 if (_screen_aspect_ratio != rpa->_screen_aspect_ratio) {
121 note (DCP_ERROR, "screen aspect ratios differ in reel");