Add support for Musepack SV7 & Musepack SV8 (#176)

Fixes #175
sindresorhus · Nov 19, 2018 · 70bceda · 70bceda
1 parent 93a0cdd
commit 70bceda
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diff --git a/fixture/fixture-sv7.mpc b/fixture/fixture-sv7.mpc
diff --git a/fixture/fixture-sv8.mpc b/fixture/fixture-sv8.mpc
diff --git a/index.js b/index.js
@@ -878,6 +878,22 @@ module.exports = input => {
 		};
 	}
 
+	// Musepack, SV7
+	if (check([0x4D, 0x50, 0x2B])) {
+		return {
+			ext: 'mpc',
+			mime: 'audio/x-musepack'
+		};
+	}
+
+	// Musepack, SV8
+	if (check([0x4D, 0x50, 0x43, 0x4B])) {
+		return {
+			ext: 'mpc',
+			mime: 'audio/x-musepack'
+		};
+	}
+
 	return null;
 };
 

diff --git a/readme.md b/readme.md
@@ -178,6 +178,7 @@ The minimum amount of bytes needed to detect a file type. Currently, it's 4100 b
 - [`wma`](https://en.wikipedia.org/wiki/Windows_Media_Audio) - Windows Media Audio
 - [`wmv`](https://en.wikipedia.org/wiki/Windows_Media_Video) - Windows Media Video
 - [`dcm`](https://en.wikipedia.org/wiki/DICOM#Data_format) - DICOM Image File
+- [`mpc`](https://en.wikipedia.org/wiki/Musepack) - Musepack (SV7 & SV8)
 
 *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
@@ -177,6 +177,10 @@ const names = {
 	],
 	ape: [
 		'fixture-monkeysaudio'
+	],
+	mpc: [
+		'fixture-sv7',
+		'fixture-sv8'
 	]
 };