Use correct audio/mp4 type for m4a.

andersk · andersk · commit d507cd57f2d2 · 2022-02-04T13:26:21.000-08:00
https://www.rfc-editor.org/rfc/rfc4337#section-2 https://www.iana.org/assignments/media-types/audio/mp4 Signed-off-by: Anders Kaseorg <andersk@mit.edu>
diff --git a/README.rst b/README.rst
@@ -97,7 +97,7 @@ Audio
 -  **aac** - ``audio/aac``
 -  **mid** - ``audio/midi``
 -  **mp3** - ``audio/mpeg``
--  **m4a** - ``audio/m4a``
+-  **m4a** - ``audio/mp4``
 -  **ogg** - ``audio/ogg``
 -  **flac** - ``audio/x-flac``
 -  **wav** - ``audio/x-wav``
diff --git a/filetype/types/audio.py b/filetype/types/audio.py
@@ -56,7 +56,7 @@ class M4a(Type):
     """
     Implements the M4A audio type matcher.
     """
-    MIME = 'audio/m4a'
+    MIME = 'audio/mp4'
     EXTENSION = 'm4a'
 
     def __init__(self):
