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-rw-r--r--src/lib/colour_conversion.cc21
-rw-r--r--src/lib/colour_conversion.h1
-rw-r--r--src/lib/video_content.cc3
-rw-r--r--test/colour_conversion_test.cc34
-rw-r--r--test/wscript2
5 files changed, 60 insertions, 1 deletions
diff --git a/src/lib/colour_conversion.cc b/src/lib/colour_conversion.cc
index cc25ccc67..5f8064dab 100644
--- a/src/lib/colour_conversion.cc
+++ b/src/lib/colour_conversion.cc
@@ -23,6 +23,7 @@
#include <libcxml/cxml.h>
#include "config.h"
#include "colour_conversion.h"
+#include "util.h"
#include "i18n.h"
@@ -116,6 +117,26 @@ ColourConversion::preset () const
return i;
}
+string
+ColourConversion::identifier () const
+{
+ double numbers[12];
+
+ int n = 0;
+ numbers[n++] = input_gamma;
+ numbers[n++] = input_gamma_linearised;
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ numbers[n++] = matrix (i, j);
+ }
+ }
+ numbers[n++] = output_gamma;
+
+ assert (n == 12);
+
+ return md5_digest (numbers, 12 * sizeof (double));
+}
+
PresetColourConversion::PresetColourConversion ()
: name (_("Untitled"))
{
diff --git a/src/lib/colour_conversion.h b/src/lib/colour_conversion.h
index f6b5bc9f3..893148466 100644
--- a/src/lib/colour_conversion.h
+++ b/src/lib/colour_conversion.h
@@ -45,6 +45,7 @@ public:
ColourConversion (boost::shared_ptr<cxml::Node>);
virtual void as_xml (xmlpp::Node *) const;
+ std::string identifier () const;
boost::optional<size_t> preset () const;
diff --git a/src/lib/video_content.cc b/src/lib/video_content.cc
index 8b0ec4c99..3f6e171a5 100644
--- a/src/lib/video_content.cc
+++ b/src/lib/video_content.cc
@@ -225,7 +225,8 @@ VideoContent::identifier () const
<< "_" << crop().left
<< "_" << crop().right
<< "_" << crop().top
- << "_" << crop().bottom;
+ << "_" << crop().bottom
+ << "_" << colour_conversion().identifier ();
if (ratio()) {
s << "_" << ratio()->id ();
diff --git a/test/colour_conversion_test.cc b/test/colour_conversion_test.cc
new file mode 100644
index 000000000..3e90d542a
--- /dev/null
+++ b/test/colour_conversion_test.cc
@@ -0,0 +1,34 @@
+/*
+ Copyright (C) 2013 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 <boost/test/unit_test.hpp>
+#include <libdcp/colour_matrix.h>
+#include "lib/colour_conversion.h"
+
+using std::cout;
+
+/* Basic test of identifier() for ColourConversion (i.e. a hash of the numbers) */
+BOOST_AUTO_TEST_CASE (colour_conversion_test)
+{
+ ColourConversion A (2.4, true, libdcp::colour_matrix::srgb_to_xyz, 2.6);
+ ColourConversion B (2.4, false, libdcp::colour_matrix::srgb_to_xyz, 2.6);
+
+ BOOST_CHECK_EQUAL (A.identifier(), "246ff9b7dc32c0488948a32a713924b3");
+ BOOST_CHECK_EQUAL (B.identifier(), "a8d1da30f96a121d8db06a03409758b3");
+}
diff --git a/test/wscript b/test/wscript
index 8cc50a683..7c7aee733 100644
--- a/test/wscript
+++ b/test/wscript
@@ -16,6 +16,7 @@ def build(bld):
obj.use = 'libdcpomatic'
obj.source = """
test.cc
+ colour_conversion_test.cc
audio_delay_test.cc
silence_padding_test.cc
audio_merger_test.cc
@@ -40,5 +41,6 @@ def build(bld):
image_test.cc
4k_test.cc
"""
+
obj.target = 'unit-tests'
obj.install_path = ''