1 files changed, 20 insertions, 5 deletions

diff --git a/src/photos/AvifSupport.vala b/src/photos/AvifSupport.vala
index 842f0fc..0df57a6 100644
--- a/src/photos/AvifSupport.vala
+++ b/src/photos/AvifSupport.vala
@@ -79,7 +79,7 @@ public class AvifWriter : PhotoFileWriter {
     }
     
     public override void write(Gdk.Pixbuf pixbuf, Jpeg.Quality quality) throws Error {
-        pixbuf.save(get_filepath(), "avif", "quality", "90", null);
+        pixbuf.save(get_filepath(), "avif", "quality", quality.get_pct_text(), null);
     }
 }
 
@@ -89,7 +89,8 @@ public class AvifMetadataWriter : PhotoFileMetadataWriter {
     }
     
     public override void write_metadata(PhotoMetadata metadata) throws Error {
-        metadata.write_to_file(get_file());
+        // TODO: Not yet implemented in gexiv2
+        // metadata.write_to_file(get_file());
     }
 }
 
@@ -99,6 +100,19 @@ public class AvifFileFormatDriver : PhotoFileFormatDriver {
     public static void init() {
         instance = new AvifFileFormatDriver();
         AvifFileFormatProperties.init();
+
+        var formats = Gdk.Pixbuf.get_formats();
+        var seen = false;
+        can_write = true;
+
+        foreach (var format in formats) {
+            if (format.get_name() == "avif") {
+                seen = true;
+                can_write = can_write && format.is_writable();
+            }
+        }
+
+        can_write = can_write && seen;
     }
     
     public static AvifFileFormatDriver get_instance() {
@@ -112,13 +126,14 @@ public class AvifFileFormatDriver : PhotoFileFormatDriver {
     public override PhotoFileReader create_reader(string filepath) {
         return new AvifReader(filepath);
     }
-    
+
+    static bool can_write;
     public override bool can_write_image() {
-        return true;
+        return AvifFileFormatDriver.can_write;
     }
     
     public override bool can_write_metadata() {
-        return true;
+        return false;
     }
     
     public override PhotoFileWriter? create_writer(string filepath) {