Add support for ac3 and voc formats (#201)

sindresorhus · Apr 20, 2019 · 7038abc · 7038abc
1 parent aacd31a
commit 7038abc
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Showing 7 changed files with 25 additions and 3 deletions.
diff --git a/fixture/fixture.ac3 b/fixture/fixture.ac3
diff --git a/fixture/fixture.voc b/fixture/fixture.voc
diff --git a/index.d.ts b/index.d.ts
@@ -97,7 +97,9 @@ declare namespace fileType {
 		| 'pcap'
 		| 'dsf'
 		| 'lnk'
-		| 'alias';
+		| 'alias'
+		| 'voc'
+		| 'ac3';
 
 	interface FileTypeResult {
 		/**

diff --git a/index.js b/index.js
@@ -933,6 +933,20 @@ const fileType = input => {
 			mime: 'application/x.apple.alias' // Invented by us
 		};
 	}
+
+	if (checkString('Creative Voice File')) {
+		return {
+			ext: 'voc',
+			mime: 'audio/x-voc'
+		};
+	}
+
+	if (check([0x0B, 0x77])) {
+		return {
+			ext: 'ac3',
+			mime: 'audio/vnd.dolby.dd-raw'
+		};
+	}
 };
 
 module.exports = fileType;

diff --git a/package.json b/package.json
@@ -122,7 +122,9 @@
 		"pcap",
 		"dsf",
 		"lnk",
-		"alias"
+		"alias",
+		"voc",
+		"ac3"
 	],
 	"devDependencies": {
 		"@types/node": "^11.12.2",

diff --git a/readme.md b/readme.md
@@ -219,6 +219,8 @@ Type: [`stream.Readable`](https://nodejs.org/api/stream.html#stream_class_stream
 - [`dsf`](https://dsd-guide.com/sites/default/files/white-papers/DSFFileFormatSpec_E.pdf) - Sony DSD Stream File (DSF)
 - [`lnk`](https://en.wikipedia.org/wiki/Shortcut_%28computing%29#Microsoft_Windows) - Microsoft Windows file shortcut
 - [`alias`](https://en.wikipedia.org/wiki/Alias_%28Mac_OS%29) - macOS Alias file
+- [`voc`](https://wiki.multimedia.cx/index.php/Creative_Voice) - Creative Voice File
+- [`ac3`](https://www.atsc.org/standard/a522012-digital-audio-compression-ac-3-e-ac-3-standard-12172012/) - ATSC A/52 Audio File
 
 *SVG isn't included as it requires the whole file to be read, but you can get it [here](https://github.com/sindresorhus/is-svg).*
 

diff --git a/test.js b/test.js
@@ -106,7 +106,9 @@ const types = [
 	'pcap',
 	'dsf',
 	'lnk',
-	'alias'
+	'alias',
+	'voc',
+	'ac3'
 ];
 
 // Define an entry here only if the fixture has a different