X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fcontent.cc;h=aa382d68b9e5f53fa233e70a6d4925ae65a73b9e;hb=e60bb3e51bd1508b149e6b8f6608f09b5196ae26;hp=21e49a2c955ae7e74091ec5c1a43f4e9e238b857;hpb=391d85619ac19a2a93696ddc35c222eb9bb5d9d6;p=dcpomatic.git

diff --git a/src/lib/content.cc b/src/lib/content.cc
index 21e49a2c9..aa382d68b 100644
--- a/src/lib/content.cc
+++ b/src/lib/content.cc
@@ -21,28 +21,26 @@
  *  @brief Content class.
  */
 
-#include <boost/thread/mutex.hpp>
-#include <libxml++/libxml++.h>
-#include <libcxml/cxml.h>
-#include <dcp/raw_convert.h>
 #include "content.h"
 #include "util.h"
 #include "content_factory.h"
-#include "ui_signaller.h"
 #include "exceptions.h"
 #include "film.h"
 #include "safe_stringstream.h"
+#include "job.h"
+#include "raw_convert.h"
+#include <libcxml/cxml.h>
+#include <libxml++/libxml++.h>
+#include <boost/thread/mutex.hpp>
 
 #include "i18n.h"
 
 using std::string;
-using std::set;
 using std::list;
 using std::cout;
 using std::vector;
 using std::max;
 using boost::shared_ptr;
-using dcp::raw_convert;
 
 int const ContentProperty::PATH = 400;
 int const ContentProperty::POSITION = 401;
@@ -50,8 +48,8 @@ int const ContentProperty::LENGTH = 402;
 int const ContentProperty::TRIM_START = 403;
 int const ContentProperty::TRIM_END = 404;
 
-Content::Content (shared_ptr<const Film> f)
-	: _film (f)
+Content::Content (shared_ptr<const Film> film)
+	: _film (film)
 	, _position (0)
 	, _trim_start (0)
 	, _trim_end (0)
@@ -60,8 +58,8 @@ Content::Content (shared_ptr<const Film> f)
 
 }
 
-Content::Content (shared_ptr<const Film> f, DCPTime p)
-	: _film (f)
+Content::Content (shared_ptr<const Film> film, DCPTime p)
+	: _film (film)
 	, _position (p)
 	, _trim_start (0)
 	, _trim_end (0)
@@ -70,8 +68,8 @@ Content::Content (shared_ptr<const Film> f, DCPTime p)
 
 }
 
-Content::Content (shared_ptr<const Film> f, boost::filesystem::path p)
-	: _film (f)
+Content::Content (shared_ptr<const Film> film, boost::filesystem::path p)
+	: _film (film)
 	, _position (0)
 	, _trim_start (0)
 	, _trim_end (0)
@@ -80,22 +78,22 @@ Content::Content (shared_ptr<const Film> f, boost::filesystem::path p)
 	_paths.push_back (p);
 }
 
-Content::Content (shared_ptr<const Film> f, cxml::ConstNodePtr node)
-	: _film (f)
+Content::Content (shared_ptr<const Film> film, cxml::ConstNodePtr node)
+	: _film (film)
 	, _change_signals_frequent (false)
 {
 	list<cxml::NodePtr> path_children = node->node_children ("Path");
 	for (list<cxml::NodePtr>::const_iterator i = path_children.begin(); i != path_children.end(); ++i) {
 		_paths.push_back ((*i)->content ());
 	}
-	_digest = node->string_child ("Digest");
+	_digest = node->optional_string_child ("Digest").get_value_or ("X");
 	_position = DCPTime (node->number_child<double> ("Position"));
 	_trim_start = DCPTime (node->number_child<double> ("TrimStart"));
 	_trim_end = DCPTime (node->number_child<double> ("TrimEnd"));
 }
 
-Content::Content (shared_ptr<const Film> f, vector<shared_ptr<Content> > c)
-	: _film (f)
+Content::Content (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
+	: _film (film)
 	, _position (c.front()->position ())
 	, _trim_start (c.front()->trim_start ())
 	, _trim_end (c.back()->trim_end ())
@@ -133,11 +131,19 @@ Content::as_xml (xmlpp::Node* node) const
 void
 Content::examine (shared_ptr<Job> job)
 {
+	if (job) {
+		job->sub (_("Computing digest"));
+	}
+
 	boost::mutex::scoped_lock lm (_mutex);
 	vector<boost::filesystem::path> p = _paths;
 	lm.unlock ();
-	
-	string const d = md5_digest (p, job);
+
+	/* Some content files are very big, so we use a poor man's
+	   digest here: a MD5 of the first and last 1e6 bytes with the
+	   size of the first file tacked on the end as a string.
+	*/
+	string const d = md5_digest_head_tail (p, 1000000) + raw_convert<string> (boost::filesystem::file_size (p.front ()));
 
 	lm.lock ();
 	_digest = d;
@@ -146,9 +152,7 @@ Content::examine (shared_ptr<Job> job)
 void
 Content::signal_changed (int p)
 {
-	if (ui_signaller) {
-		ui_signaller->emit (boost::bind (boost::ref (Changed), shared_from_this (), p, _change_signals_frequent));
-	}
+	emit (boost::bind (boost::ref (Changed), shared_from_this (), p, _change_signals_frequent));
 }
 
 void
@@ -159,7 +163,7 @@ Content::set_position (DCPTime p)
 		if (p == _position) {
 			return;
 		}
-		
+
 		_position = p;
 	}
 
@@ -196,7 +200,7 @@ Content::clone () const
 	if (!film) {
 		return shared_ptr<Content> ();
 	}
-	
+
 	/* This is a bit naughty, but I can't think of a compelling reason not to do it ... */
 	xmlpp::Document doc;
 	xmlpp::Node* node = doc.create_root_node ("Content");
@@ -226,7 +230,7 @@ string
 Content::identifier () const
 {
 	SafeStringStream s;
-	
+
 	s << Content::digest()
 	  << "_" << position().get()
 	  << "_" << trim_start().get()
@@ -260,7 +264,7 @@ Content::path_summary () const
 {
 	/* XXX: should handle multiple paths more gracefully */
 
-	assert (number_of_paths ());
+	DCPOMATIC_ASSERT (number_of_paths ());
 
 	string s = path(0).filename().string ();
 	if (number_of_paths() > 1) {