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Fails to analyze some m4a files

See original GitHub issue

Bug description Some m4a files return Error message: End-Of-Stream. Even though the file plays just file. I tried different methods like parseFile, parseBuffer and parseStream. But they all fail at the readBuffer function inside the strtok3 library.

I am running 7.13.0 common js version in node env.

Expected behavior Any m4a file should work.

Audio file demonstrating the problem If applicable, please drag and drop the zipped audio file(s) which caused the problem into the bug report. Please create additional issues if you experience different problems for each file.

Here is the error stack.

 at FileTokenizer.readBuffer (../../node_modules/strtok3/lib/FileTokenizer.js:25:13)
      at FileTokenizer.readToken (../../node_modules/strtok3/lib/AbstractTokenizer.js:25:17)
      at Function.readAtom (../../node_modules/music-metadata/lib/mp4/Atom.js:19:20)
      at Atom.readAtoms (../../node_modules/music-metadata/lib/mp4/Atom.js:38:24)
      at Function.readAtom (../../node_modules/music-metadata/lib/mp4/Atom.js:27:5)
      at MP4Parser.parse (../../node_modules/music-metadata/lib/mp4/MP4Parser.js:237:24)
      at parse (../../node_modules/music-metadata/lib/ParserFactory.js:38:3)
      at parseFile (../../node_modules/music-metadata/lib/index.js:46:12)

For some reason bytesRead at this line was 0. Not sure why.

If it helps, here is the file metadata that was generated via ffmpeg in terminal

major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2022-10-28T11:44:43.000000Z 10
  Duration: 00:02:04.80, start: 0.000000, bitrate: 150 kb/s
  Stream #0:0[0x1](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 148 kb/s (default)
      creation_time   : 2022-10-28T11:44:43.000000Z
      handler_name    : SoundHandle
      vendor_id       : [0][0][0][0]

Issue Analytics

  • State:open
  • Created a year ago
  • Comments:7 (5 by maintainers)

github_iconTop GitHub Comments

Borewitcommented, Nov 23, 2022

Understood @sam-serenade, posting it to will do the trick.

ash67commented, Nov 28, 2022

@Borewit Apologies for the late response! It looks like your workaround works! Thanks so much!

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