Bug 112727 - If present, change the 'Orientation' meta data on rotation of a jpeg
Summary: If present, change the 'Orientation' meta data on rotation of a jpeg
Status: RESOLVED FIXED
Alias: None
Product: krita
Classification: Applications
Component: General (show other bugs)
Version: unspecified
Platform: unspecified Linux
: NOR normal
Target Milestone: ---
Assignee: Halla Rempt
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-09-16 14:42 UTC by Thomas Zander
Modified: 2007-07-15 22:32 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
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Description Thomas Zander 2005-09-16 14:42:03 UTC
Version:           1.4.88 (using KDE 3.4.91 (beta1, >= 20050910), compiled sources)
Compiler:          gcc version 3.3.5 (Debian 1:3.3.5-13)
OS:                Linux (i686) release 2.6.11.1

If you get a JPEG from a digital camera the changes it contains the 'orientation' field is pretty high.
It would be great if the rotate feature in krita would adjust the orientation flag if present in the meta data.

See:
http://sylvana.net/jpegcrop/exif_orientation.html
Comment 1 Halla Rempt 2005-09-18 23:35:59 UTC
Yes, we should support exif metadata a lot better: I don't think we support it at all except that we try not to throw it away. It's a new feature, though, and I'm not sure how soon it can be implemented. I could probably try to borrow code from digikam here.
Comment 2 Cyrille Berger 2006-01-21 17:11:55 UTC
SVN commit 500932 by berger:

- check for the ORIENTATION exif tag (will work when rotation and mirror are fixed)
BUG:112727


 M  +2 -2      Makefile.am  
 M  +57 -0     kis_jpeg_converter.cc  


--- trunk/koffice/filters/krita/jpeg/Makefile.am #500931:500932
@@ -7,12 +7,12 @@
 libkritajpegexport_la_LDFLAGS = -avoid-version -module -no-undefined \
 	$(KDE_PLUGIN) $(KDE_RPATH) $(all_libraries)
 libkritajpegexport_la_LIBADD = $(top_builddir)/krita/libkritacommon.la \
-	libkritaconverter.la $(KOFFICE_LIBS) -ljpeg
+	libkritaconverter.la $(KOFFICE_LIBS) -ljpeg -lexif
 
 libkritajpegimport_la_LDFLAGS = -avoid-version -module -no-undefined \
 	$(KDE_PLUGIN) $(KDE_RPATH) $(all_libraries)
 libkritajpegimport_la_LIBADD = $(top_builddir)/krita/libkritacommon.la \
-	libkritaconverter.la $(KOFFICE_LIBS) -ljpeg
+	libkritaconverter.la $(KOFFICE_LIBS) -ljpeg -lexif
 
 INCLUDES= \
 	-I$(srcdir) \
--- trunk/koffice/filters/krita/jpeg/kis_jpeg_converter.cc #500931:500932
@@ -40,6 +40,8 @@
 #include <kis_meta_registry.h>
 #include <kis_profile.h>
 
+#include <libexif/exif-loader.h>
+
 #define ICC_MARKER  (JPEG_APP0 + 2) /* JPEG marker code for ICC */
 #define ICC_OVERHEAD_LEN  14    /* size of non-profile data in APP2 */
 #define MAX_BYTES_IN_MARKER  65533  /* maximum data len of a JPEG marker */
@@ -219,9 +221,64 @@
     jpeg_destroy_decompress(&cinfo);
     fclose(fp);
 
+    // Read exif information
+    ExifLoader *l = exif_loader_new ();
+    
+    exif_loader_write_file (l,uri.path().ascii());
+    
+    ExifData *ed = exif_loader_get_data (l);
+
+    ed = exif_loader_get_data (l);
+    exif_loader_unref (l);
+    if (ed) { // there are some exif tags
+        ExifTag tag = EXIF_TAG_ORIENTATION;
+        ExifIfd ifd = EXIF_IFD_0;
+        ExifEntry *e = exif_content_get_entry ( ed->ifd[ifd], tag);
+        if(e)
+        {
+            char buf[1024];
+            char value[1024];
+//             exif_entry_get_value (e, value, sizeof(value));
+            ExifShort v_short = exif_get_short (e->data, exif_data_get_byte_order (e->parent->parent));
+//             kdDebug() << "tag orientation = " << value << " begin " << v_short << " end" << endl;
+            switch(v_short) //
+            {
+                case 2:
+                    layer->paintDevice()->mirrorY();
+                    break;
+                case 3:
+                    image()->rotate(180, 0);
+                    break;
+                case 4:
+                    layer->paintDevice()->mirrorX();
+                    break;
+                case 5:
+                    image()->rotate(90, 0);
+                    layer->paintDevice()->mirrorY();
+                    break;
+                case 6:
+                    image()->rotate(90, 0);
+                    break;
+                case 7:
+                    image()->rotate(90, 0);
+                    layer->paintDevice()->mirrorX();
+                    break;
+                case 8:
+                    image()->rotate(270, 0);
+                    break;
+                default:
+                    break;
+            }
+        }
+    } else {
+        kdDebug() << "no exif information" << endl;
+    }
+    
     return KisImageBuilder_RESULT_OK;
 }
 
+
+
 KisImageBuilder_Result KisJPEGConverter::buildImage(const KURL& uri)
 {
     if (uri.isEmpty())
Comment 3 Cyrille Berger 2007-07-08 20:50:02 UTC
as exif isn't loaded anymore that bug is back.
Comment 4 Cyrille Berger 2007-07-15 22:31:59 UTC
SVN commit 688358 by berger:

restore metadata framework (under the strict condition stated on krita's mailing list)

meaning krita can again load exif and iptc tags

BUG: 112727
CCBUG: 138923


 M  +8 -4      filters/krita/CMakeLists.txt  
 M  +4 -2      filters/krita/jpeg/CMakeLists.txt  
 M  +176 -1    filters/krita/jpeg/kis_jpeg_converter.cc  
 M  +1 -1      filters/krita/jpeg/kis_jpeg_converter.h  
 M  +49 -1     filters/krita/jpeg/kis_jpeg_export.cc  
 A             filters/krita/libkisexiv2 (directory)   filters/krita/libkisexiv2#685376
 A             filters/krita/libkisexiv2/CMakeLists.txt   filters/krita/libkisexiv2/CMakeLists.txt#685376
 A             filters/krita/libkisexiv2/kis_exif_io.cpp   filters/krita/libkisexiv2/kis_exif_io.cpp#685376 [License: LGPL (v2+)]
 A             filters/krita/libkisexiv2/kis_exif_io.h   filters/krita/libkisexiv2/kis_exif_io.h#685376 [License: LGPL (v2+)]
 A             filters/krita/libkisexiv2/kis_exiv2.cpp   filters/krita/libkisexiv2/kis_exiv2.cpp#685376 [License: LGPL (v2+)]
 A             filters/krita/libkisexiv2/kis_exiv2.h   filters/krita/libkisexiv2/kis_exiv2.h#685376 [License: LGPL (v2+)]
 A             filters/krita/libkisexiv2/kis_iptc_io.cpp   filters/krita/libkisexiv2/kis_iptc_io.cpp#685376 [License: LGPL (v2+)]
 A             filters/krita/libkisexiv2/kis_iptc_io.h   filters/krita/libkisexiv2/kis_iptc_io.h#685376 [License: LGPL (v2+)]
 M  +5 -1      krita/image/CMakeLists.txt  
 M  +12 -0     krita/image/kis_layer.cc  
 M  +8 -0      krita/image/kis_layer.h  
 A             krita/image/metadata (directory)   krita/image/metadata#685376
 A             krita/image/metadata/kis_legacy_importer.cc   krita/image/metadata/kis_legacy_importer.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_legacy_importer.h   krita/image/metadata/kis_legacy_importer.h#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_entry.cc   krita/image/metadata/kis_meta_data_entry.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_entry.h   krita/image/metadata/kis_meta_data_entry.h#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_io_backend.cc   krita/image/metadata/kis_meta_data_io_backend.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_io_backend.h   krita/image/metadata/kis_meta_data_io_backend.h#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_schema.cc   krita/image/metadata/kis_meta_data_schema.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_schema.h   krita/image/metadata/kis_meta_data_schema.h#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_store.cc   krita/image/metadata/kis_meta_data_store.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_store.h   krita/image/metadata/kis_meta_data_store.h#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_value.cc   krita/image/metadata/kis_meta_data_value.cc#685376 [License: LGPL (v2+)]
 A             krita/image/metadata/kis_meta_data_value.h   krita/image/metadata/kis_meta_data_value.h#685376 [License: LGPL (v2+)]
 M  +0 -1      krita/plugins/paintops/CMakeLists.txt  
 M  +1 -1      krita/plugins/paintops/dynamicbrush/lib/sensors/kis_dynamic_sensor_time.cc  
 M  +2 -1      krita/plugins/viewplugins/CMakeLists.txt  
 M  +0 -4      krita/plugins/viewplugins/bracketing2hdr/bracketing2hdr.cc  
 A             krita/plugins/viewplugins/metadataeditor (directory)   krita/plugins/viewplugins/metadataeditor#685376
 A             krita/plugins/viewplugins/metadataeditor/CMakeLists.txt   krita/plugins/viewplugins/metadataeditor/CMakeLists.txt#685376
 A             krita/plugins/viewplugins/metadataeditor/editors (directory)   krita/plugins/viewplugins/metadataeditor/editors#685376
 A             krita/plugins/viewplugins/metadataeditor/editors/dublincore.rc   krita/plugins/viewplugins/metadataeditor/editors/dublincore.rc#685376
 A             krita/plugins/viewplugins/metadataeditor/editors/dublincore.ui   krita/plugins/viewplugins/metadataeditor/editors/dublincore.ui#685376
 A             krita/plugins/viewplugins/metadataeditor/editors/exif.rc   krita/plugins/viewplugins/metadataeditor/editors/exif.rc#685376
 A             krita/plugins/viewplugins/metadataeditor/editors/exif.ui   krita/plugins/viewplugins/metadataeditor/editors/exif.ui#685376
 A             krita/plugins/viewplugins/metadataeditor/kis_entry_editor.cc   krita/plugins/viewplugins/metadataeditor/kis_entry_editor.cc#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/kis_entry_editor.h   krita/plugins/viewplugins/metadataeditor/kis_entry_editor.h#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/kis_meta_data_editor.cc   krita/plugins/viewplugins/metadataeditor/kis_meta_data_editor.cc#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/kis_meta_data_editor.h   krita/plugins/viewplugins/metadataeditor/kis_meta_data_editor.h#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/kritametadataeditor.desktop   krita/plugins/viewplugins/metadataeditor/kritametadataeditor.desktop#685376
 A             krita/plugins/viewplugins/metadataeditor/metadataeditor.cc   krita/plugins/viewplugins/metadataeditor/metadataeditor.cc#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/metadataeditor.h   krita/plugins/viewplugins/metadataeditor/metadataeditor.h#685376 [License: LGPL (v2+)]
 A             krita/plugins/viewplugins/metadataeditor/metadataeditor.rc   krita/plugins/viewplugins/metadataeditor/metadataeditor.rc#685376