diff --git a/.gitignore b/.gitignore
index b717de5..eb526b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ bundle.js
 *.a
 vgcore.*
 build/
+third-party/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 469b5c2..04fc243 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -108,13 +108,6 @@ target_link_libraries(
         pthread
         magic
 
-        # TODO: compile ffmpeg with those disabled?
-        va
-        va-drm
-        va-x11
-        X11
-        vdpau
-
         scan
 )
 
diff --git a/schema/mappings.json b/schema/mappings.json
index 891c7d9..5cb9d5c 100644
--- a/schema/mappings.json
+++ b/schema/mappings.json
@@ -16,6 +16,10 @@
     "mime": {
       "type": "keyword"
     },
+    "thumbnail": {
+      "type": "keyword",
+      "index": false
+    },
     "videoc": {
       "type": "keyword",
       "index": false
@@ -133,6 +137,12 @@
     },
     "exif_user_comment": {
       "type": "text"
+    },
+    "author": {
+      "type": "text"
+    },
+    "modified_by": {
+      "type": "text"
     }
   }
 }
diff --git a/src/io/serialize.c b/src/io/serialize.c
index d7c18cd..6a01108 100644
--- a/src/io/serialize.c
+++ b/src/io/serialize.c
@@ -144,6 +144,12 @@ char *get_meta_key_text(enum metakey meta_key) {
             return "exif_model";
         case MetaExifDateTime:
             return "exif_datetime";
+        case MetaAuthor:
+            return "author";
+        case MetaModifiedBy:
+            return "modified_by";
+        case MetaThumbnail:
+            return "thumbnail";
         default:
             return NULL;
     }
diff --git a/third-party/libscan b/third-party/libscan
index 5d39dc6..ec129b8 160000
--- a/third-party/libscan
+++ b/third-party/libscan
@@ -1 +1 @@
-Subproject commit 5d39dc675849ecb99d5308b02f7e1fd20ca5b410
+Subproject commit ec129b84e87550a2bd4361d3a3701c687590992a