[shotwell] Fix strings in [SimpleType] structs

[Jens Georg <jensgeorg src gnome org>]

commit 0fb9e8795e830f31a660eaa75678fd0af3fe729c
Author: Jens Georg <mail jensge org>
Date:   Sat Mar 13 22:32:17 2021 +0100

    Fix strings in [SimpleType] structs

 src/camera/ImportPage.vala | 5 +++--
 vapi/libraw.vapi           | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/src/camera/ImportPage.vala b/src/camera/ImportPage.vala
index ab24df61..6ebf2313 100644
--- a/src/camera/ImportPage.vala
+++ b/src/camera/ImportPage.vala
@@ -1410,12 +1410,13 @@ public class ImportPage : CheckerboardPage {
                     import_list.add(video_source);
                 } else {
                     // determine file format from type, and then from file extension
-                    PhotoFileFormat file_format = PhotoFileFormat.from_gphoto_type(info.file.type);          
     
+                    string file_type = (string)info.file.type;
+                    PhotoFileFormat file_format = PhotoFileFormat.from_gphoto_type(file_type);               
                     if (file_format == PhotoFileFormat.UNKNOWN) {
                         file_format = PhotoFileFormat.get_by_basename_extension(filename);
                         if (file_format == PhotoFileFormat.UNKNOWN) {
                             message("Skipping %s/%s: Not a supported file extension (%s)", fulldir,
-                                filename, info.file.type);
+                                filename, file_type);
                             
                             continue;
                         }
diff --git a/vapi/libraw.vapi b/vapi/libraw.vapi
index b1b5875b..146f447e 100644
--- a/vapi/libraw.vapi
+++ b/vapi/libraw.vapi
@@ -248,7 +248,7 @@ public struct Thumbnail {
     public uint tlength;
     public int tcolors;
     [CCode (array_length_cname="tlength")]
-    public uint8[] thumb;
+    public unowned uint8[] thumb;
 }
 
 [CCode (cname="enum LibRaw_thumbnail_formats", cprefix="LIBRAW_THUMBNAIL_")]