Merge branch '946-m4a-no-cover' into 'master'

Fix #946: Fix import crash when importing M4A file with no embedded cover

See merge request funkwhale/funkwhale!928

api/funkwhale_api/music/metadata.py

@@ -72,7 +72,7 @@ def clean_id3_pictures(apic):
 
 def get_mp4_tag(f, k):
     if k == "pictures":
-        return f.get("covr")
+        return f.get("covr", [])
     raw_value = f.get(k, None)
 
     if not raw_value:

api/tests/music/test_metadata.py

@@ -219,6 +219,11 @@ def test_can_get_metadata_from_m4a_file(field, value):
     assert data.get(field) == value
 
 
+def test_get_pictures_m4a_empty():
+    pictures = metadata.get_mp4_tag({}, "pictures")
+    assert metadata.clean_mp4_pictures(pictures) == []
+
+
 def test_can_get_metadata_from_flac_file_not_crash_if_empty():
     path = os.path.join(DATA_DIR, "sample.flac")
     data = metadata.Metadata(path)

changes/changelog.d/946.bugfix

+Fix import crash when importing M4A file with no embedded cover (#946)