cpl.{cc,h} to dc_cpl.{cc,h} and dcp.{cc,h} to dc_package.{cc,h}

1 files changed, 264 insertions, 0 deletions

diff --git a/src/dc_cpl.cc b/src/dc_cpl.cc
new file mode 100644
index 00000000..fc0a0458
--- /dev/null
+++ b/src/dc_cpl.cc
@@ -0,0 +1,264 @@
+/*
+    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "dc_cpl.h"
+#include "util.h"
+#include "reel.h"
+#include "metadata.h"
+#include "certificate_chain.h"
+#include "xml.h"
+#include "reel_picture_asset.h"
+#include "reel_sound_asset.h"
+#include "reel_subtitle_asset.h"
+#include "local_time.h"
+#include "dcp_assert.h"
+#include "compose.hpp"
+#include <libxml/parser.h>
+#include <boost/foreach.hpp>
+
+using std::string;
+using std::stringstream;
+using std::ostream;
+using std::list;
+using std::pair;
+using std::make_pair;
+using std::cout;
+using boost::shared_ptr;
+using boost::optional;
+using boost::dynamic_pointer_cast;
+using namespace dcp::dc;
+
+CPL::CPL (string annotation_text, ContentKind content_kind)
+	: _annotation_text (annotation_text)
+	/* default _content_title_text to _annotation_text */
+	, _content_title_text (annotation_text)
+	, _content_kind (content_kind)
+	, _content_version_id ("urn:uuid:" + make_uuid ())
+{
+	/* default _content_version_id to a random ID and _content_version_label to
+	   a random ID and the current time.
+	*/
+	_content_version_id = "urn:uuid:" + make_uuid();
+	_content_version_label_text = _content_version_id + LocalTime().as_string ();
+}
+
+/** Construct a CPL object from a XML file */
+CPL::CPL (boost::filesystem::path file)
+	: Asset (file)
+	, _content_kind (FEATURE)
+{
+	cxml::Document f ("CompositionPlaylist");
+	f.read_file (file);
+
+	_id = remove_urn_uuid (f.string_child ("Id"));
+	_annotation_text = f.optional_string_child ("AnnotationText").get_value_or ("");
+	_metadata.issuer = f.optional_string_child ("Issuer").get_value_or ("");
+	_metadata.creator = f.optional_string_child ("Creator").get_value_or ("");
+	_metadata.issue_date = f.string_child ("IssueDate");
+	_content_title_text = f.string_child ("ContentTitleText");
+	_content_kind = content_kind_from_string (f.string_child ("ContentKind"));
+	shared_ptr<cxml::Node> content_version = f.optional_node_child ("ContentVersion");
+	if (content_version) {
+		_content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
+		_content_version_label_text = content_version->string_child ("LabelText");
+		content_version->done ();
+	}
+	f.ignore_child ("RatingList");
+	_reels = type_grand_children<Reel> (f, "ReelList", "Reel");
+
+	f.ignore_child ("Issuer");
+	f.ignore_child ("Signer");
+	f.ignore_child ("Signature");
+
+	f.done ();
+}
+
+/** Add a reel to this CPL.
+ *  @param reel Reel to add.
+ */
+void
+CPL::add (boost::shared_ptr<Reel> reel)
+{
+	_reels.push_back (reel);
+}
+
+/** Write an CompositonPlaylist XML file.
+ *  @param file Filename to write.
+ *  @param standard INTEROP or SMPTE.
+ *  @param signer Signer to sign the CPL, or 0 to add no signature.
+ */
+void
+CPL::write_xml (boost::filesystem::path file, Standard standard, shared_ptr<const CertificateChain> signer) const
+{
+	xmlpp::Document doc;
+	xmlpp::Element* root;
+	if (standard == INTEROP) {
+		root = doc.create_root_node ("CompositionPlaylist", "http://www.digicine.com/PROTO-ASDCP-CPL-20040511#");
+	} else {
+		root = doc.create_root_node ("CompositionPlaylist", "http://www.smpte-ra.org/schemas/429-7/2006/CPL");
+	}
+
+	if (signer) {
+		root->set_namespace_declaration ("http://www.w3.org/2000/09/xmldsig#", "dsig");
+	}
+
+	root->add_child("Id")->add_child_text ("urn:uuid:" + _id);
+	root->add_child("AnnotationText")->add_child_text (_annotation_text);
+	root->add_child("IssueDate")->add_child_text (_metadata.issue_date);
+	root->add_child("Issuer")->add_child_text (_metadata.issuer);
+	root->add_child("Creator")->add_child_text (_metadata.creator);
+	root->add_child("ContentTitleText")->add_child_text (_content_title_text);
+	root->add_child("ContentKind")->add_child_text (content_kind_to_string (_content_kind));
+	{
+		xmlpp::Node* cv = root->add_child ("ContentVersion");
+		cv->add_child ("Id")->add_child_text (_content_version_id);
+		cv->add_child ("LabelText")->add_child_text (_content_version_label_text);
+	}
+	root->add_child("RatingList");
+
+	xmlpp::Element* reel_list = root->add_child ("ReelList");
+
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		i->write_to_cpl (reel_list, standard);
+	}
+
+	if (signer) {
+		signer->sign (root, standard);
+	}
+
+	/* This must not be the _formatted version otherwise signature digests will be wrong */
+	doc.write_to_file (file.string (), "UTF-8");
+
+	set_file (file);
+}
+
+list<shared_ptr<const ReelAsset> >
+CPL::reel_assets () const
+{
+	list<shared_ptr<const ReelAsset> > c;
+
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		if (i->main_picture ()) {
+			c.push_back (i->main_picture());
+		}
+		if (i->main_sound ()) {
+			c.push_back (i->main_sound());
+		}
+		if (i->main_subtitle ()) {
+			c.push_back (i->main_subtitle());
+		}
+	}
+
+	return c;
+}
+
+bool
+CPL::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
+{
+	shared_ptr<const CPL> other_cpl = dynamic_pointer_cast<const CPL> (other);
+	if (!other_cpl) {
+		return false;
+	}
+
+	if (_annotation_text != other_cpl->_annotation_text && !opt.cpl_annotation_texts_can_differ) {
+		stringstream s;
+		s << "CPL: annotation texts differ: " << _annotation_text << " vs " << other_cpl->_annotation_text << "\n";
+		note (DCP_ERROR, s.str ());
+		return false;
+	}
+
+	if (_content_kind != other_cpl->_content_kind) {
+		note (DCP_ERROR, "CPL: content kinds differ");
+		return false;
+	}
+
+	if (_reels.size() != other_cpl->_reels.size()) {
+		note (DCP_ERROR, String::compose ("CPL: reel counts differ (%1 vs %2)", _reels.size(), other_cpl->_reels.size()));
+		return false;
+	}
+
+	list<shared_ptr<Reel> >::const_iterator a = _reels.begin ();
+	list<shared_ptr<Reel> >::const_iterator b = other_cpl->_reels.begin ();
+
+	while (a != _reels.end ()) {
+		if (!(*a)->equals (*b, opt, note)) {
+			return false;
+		}
+		++a;
+		++b;
+	}
+
+	return true;
+}
+
+/** @return true if we have any encrypted content */
+bool
+CPL::encrypted () const
+{
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		if (i->encrypted ()) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/** Add a KDM to this CPL.  If the KDM is for any of this CPLs assets it will be used
+ *  to decrypt those assets.
+ *  @param kdm KDM.
+ */
+void
+CPL::add (DecryptedKDM const & kdm)
+{
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		i->add (kdm);
+	}
+}
+
+void
+CPL::resolve_refs (list<shared_ptr<Asset> > assets)
+{
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		i->resolve_refs (assets);
+	}
+}
+
+string
+CPL::pkl_type (Standard standard) const
+{
+	switch (standard) {
+	case INTEROP:
+		return "text/xml;asdcpKind=CPL";
+	case SMPTE:
+		return "text/xml";
+	default:
+		DCP_ASSERT (false);
+	}
+}
+
+int64_t
+CPL::duration () const
+{
+	int64_t d = 0;
+	BOOST_FOREACH (shared_ptr<Reel> i, _reels) {
+		d += i->duration ();
+	}
+	return d;
+}