Add extensions for application/mp4 from IANA

closes #207

Author: dougwilson

HISTORY.md

@@ -4,6 +4,7 @@ unreleased
   * Add extension `.sql` to `application/sql`
   * Add extensions `.aac` and `.adts` to `audio/aac`
   * Add extensions `.js` and `.mjs` to `text/javascript`
+  * Add extensions for `application/mp4` from IANA
   * Add extensions from IANA for more MIME types
   * Add Microsoft app installer types and extensions
   * Add new upstream MIME types

db.json

@@ -1045,7 +1045,7 @@
   },
   "application/mp4": {
     "source": "iana",
-    "extensions": ["mp4s","m4p"]
+    "extensions": ["mp4","mpg4","mp4s","m4p"]
   },
   "application/mpeg4-generic": {
     "source": "iana"

scripts/fetch-iana.js

@@ -35,7 +35,7 @@ var MIME_TYPE_HAS_CHARSET_PARAMETER_REGEXP = /parameters\s*:[^.]*\bcharset\b/im
 
 ;(async function () {
   const results = Array.prototype.concat.apply([], [
-    await get('application', { extensions: /(?:\/(?:automationml-amlx?\+.+|cwl|ecmascript|express|fdf|gzip|(?:ld|manifest)\+json|n-quads|n-triples|pgp-.+|sql|trig|vnd\.(?:age|apple\..+|dbf|mapbox-vector-tile|rar))|xfdf|\+xml)$/ }),
+    await get('application', { extensions: /(?:\/(?:automationml-amlx?\+.+|cwl|ecmascript|express|fdf|gzip|(?:ld|manifest)\+json|mp4|n-quads|n-triples|pgp-.+|sql|trig|vnd\.(?:age|apple\..+|dbf|mapbox-vector-tile|rar))|xfdf|\+xml)$/ }),
     await get('audio', { extensions: /\/(?:aac|mobile-xmf)$/ }),
     await get('font', { extensions: true }),
     await get('image', { extensions: true }),

src/iana-types.json

@@ -1436,6 +1436,7 @@
     ]
   },
   "application/mp4": {
+    "extensions": ["mp4","mpg4"],
     "sources": [
       "https://tools.ietf.org/rfc/rfc4337.txt",
       "https://tools.ietf.org/rfc/rfc6381.txt",