Map tag ID3v2.2 TBP to common.bpm

Also ensures `common.bpm` is a numeric value.
Borewit · Jan 12, 2022 · 48f9571 · 48f9571
1 parent feb15be
commit 48f9571
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diff --git a/lib/common/MetadataCollector.ts b/lib/common/MetadataCollector.ts
@@ -199,6 +199,7 @@ export class MetadataCollector implements INativeMetadataCollector {
         this.common[tag.id].of = of != null ? of : this.common[tag.id].of;
         return;
 
+      case 'bpm':
       case 'year':
       case 'originalyear':
         tag.value = parseInt(tag.value, 10);

diff --git a/lib/id3v2/ID3v22TagMapper.ts b/lib/id3v2/ID3v22TagMapper.ts
@@ -45,7 +45,10 @@ export const id3v22TagMap: INativeTagMap = {
   TSC: 'composersort',
   TSP: 'artistsort',
   TST: 'titlesort',
-  WFD: 'podcasturl'
+  WFD: 'podcasturl',
+
+  TBP: 'bpm'
+
 };
 
 export class ID3v22TagMapper extends CaseInsensitiveTagMap {

diff --git a/test/samples/mp3/Betty Lou.mp3 b/test/samples/mp3/Betty Lou.mp3
diff --git a/test/test-id3v2.2.ts b/test/test-id3v2.2.ts
@@ -101,6 +101,23 @@ describe('ID3v2Parser', () => {
     assert.strictEqual(pics[0].type, 'Cover (front)', 'picture type');
   });
 
+  describe('Tag mapping', () => {
+
+    it("TBP (beats per minute)", async () => {
+
+      const filePath = path.join(samplePath, 'mp3', 'Betty Lou.mp3');
+
+      const {format, common, native} = await mm.parseFile(filePath, {duration: true});
+      assert.strictEqual(format.container, 'MPEG', 'format.container');
+      assert.strictEqual(format.codec, 'MPEG 1 Layer 3', 'format.codec');
+
+      assert.strictEqual(common.title, 'Betty Lou', 'common.title');
+      assert.strictEqual(common.artist, 'The Hub Caps', 'common.artist,');
+
+      assert.strictEqual(common.bpm, 177, 'common.bpm,');
+    });
+  });
+
 });
 
 describe('Post parse genre', () => {