Add OpenSSL licence exception.

[libdcp.git] / src / stereo_picture_asset.cc

diff --git a/src/stereo_picture_asset.cc b/src/stereo_picture_asset.cc
index 76c353f1732e0a4b272c62c61d05802943ade113..5c3d04ffebbb046cbb08ae87b4bfed1f1583e772 100644 (file)
--- a/src/stereo_picture_asset.cc
+++ b/src/stereo_picture_asset.cc
@@ -1,20 +1,34 @@
 /*
-    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of libdcp.
+
+    libdcp 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,
+    libdcp 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.
-
+    along with libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of portions of this program with the
+    OpenSSL library under certain conditions as described in each
+    individual source file, and distribute linked combinations
+    including the two.
+
+    You must obey the GNU General Public License in all respects
+    for all of the code used other than OpenSSL.  If you modify
+    file(s) with this exception, you may extend this exception to your
+    version of the file(s), but you are not obligated to do so.  If you
+    do not wish to do so, delete this exception statement from your
+    version.  If you delete this exception statement from all source
+    files in the program, then also delete it here.
 */
 
 #include "AS_DCP.h"
@@ -22,6 +36,7 @@
 #include "stereo_picture_frame.h"
 #include "exceptions.h"
 #include "stereo_picture_asset_writer.h"
+#include "stereo_picture_asset_reader.h"
 #include "dcp_assert.h"
 
 using std::string;
@@ -62,18 +77,18 @@ StereoPictureAsset::StereoPictureAsset (Fraction edit_rate)
 
 }
 
-shared_ptr<const StereoPictureFrame>
-StereoPictureAsset::get_frame (int n) const
-{
-       return shared_ptr<const StereoPictureFrame> (new StereoPictureFrame (file().string(), n));
-}
-
 shared_ptr<PictureAssetWriter>
 StereoPictureAsset::start_write (boost::filesystem::path file, Standard standard, bool overwrite)
 {
        return shared_ptr<StereoPictureAssetWriter> (new StereoPictureAssetWriter (this, file, standard, overwrite));
 }
 
+shared_ptr<StereoPictureAssetReader>
+StereoPictureAsset::start_read () const
+{
+       return shared_ptr<StereoPictureAssetReader> (new StereoPictureAssetReader (this));
+}
+
 bool
 StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
 {
@@ -105,12 +120,17 @@ StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt,
        shared_ptr<const StereoPictureAsset> other_picture = dynamic_pointer_cast<const StereoPictureAsset> (other);
        DCP_ASSERT (other_picture);
 
+       shared_ptr<const StereoPictureAssetReader> reader = start_read ();
+       shared_ptr<const StereoPictureAssetReader> other_reader = other_picture->start_read ();
+
+       bool result = true;
+
        for (int i = 0; i < _intrinsic_duration; ++i) {
                shared_ptr<const StereoPictureFrame> frame_A;
                shared_ptr<const StereoPictureFrame> frame_B;
                try {
-                       frame_A = get_frame (i);
-                       frame_B = other_picture->get_frame (i);
+                       frame_A = reader->get_frame (i);
+                       frame_B = other_reader->get_frame (i);
                } catch (DCPReadError& e) {
                        /* If there was a problem reading the frame data we'll just assume
                           the two frames are not equal.
@@ -124,7 +144,10 @@ StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt,
                            frame_A->left_j2k_data(), frame_A->left_j2k_size(),
                            frame_B->left_j2k_data(), frame_B->left_j2k_size()
                            )) {
-                       return false;
+                       result = false;
+                       if (!opt.keep_going) {
+                               return result;
+                       }
                }
 
                if (!frame_buffer_equals (
@@ -132,9 +155,12 @@ StereoPictureAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt,
                            frame_A->right_j2k_data(), frame_A->right_j2k_size(),
                            frame_B->right_j2k_data(), frame_B->right_j2k_size()
                            )) {
-                       return false;
+                       result = false;
+                       if (!opt.keep_going) {
+                               return result;
+                       }
                }
        }
 
-       return true;
+       return result;
 }