1.1.5: Add support for HE-AAC profile in mp4a.

Author: codedread

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.1.5] - 2023-10-22
+
+### Changed
+
+- codecs: Add support for HE-AAC profile in mp4a.
+
 ## [1.1.4] - 2023-10-19
 
 ### Changed

codecs/codecs.js

@@ -294,10 +294,14 @@ function getVP09CodecString(stream) {
  */
 function getMP4ACodecString(stream) {
   let frag = 'mp4a.40';
+  // https://dashif.org/codecs/audio/
   switch (stream.profile) {
     case 'LC':
       frag += '.2';
       break;
+    case 'HE-AAC':
+      frag += '.5';
+      break;
     // TODO: more!
     default:
       throw `Cannot handle AAC stream with profile ${stream.profile} yet. ` +

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@codedread/bitjs",
-  "version": "1.1.4",
+  "version": "1.1.5",
   "description": "Binary Tools for JavaScript",
   "homepage": "https://github.com/codedread/bitjs",
   "author": "Jeff Schiller",

tests/codecs.spec.js

@@ -488,6 +488,15 @@ describe('codecs test suite', () => {
       });
     });
 
+    it('recognizes codec_name=HE-AAC', () => {
+      const info = structuredClone(baseInfo);
+      info.streams[0].profile = 'HE-AAC';
+      info.streams[0].codec_name = 'aac';
+      expect(getFullMIMEString(info))
+          .to.be.a('string')
+          .and.equals('audio/mp4; codecs="mp4a.40.5"');
+    });
+
     it('handles codec_name=aac but no codec_tag_string', () => {
       const info = structuredClone(baseInfo);
       info.streams[0].profile = 'LC';