Failure to open/decode an AAC file - "moov atom not found"

[eyalroz]

Describe the bug
When I try to open certain AAC files I get an error:

Error Playing File /path/to/NoEscape.aac: This file could not be decoded. It may be invalid, corrupt, or an unsupported format

The log says:

ERROR ../src/ffaudio/ffaudio-core.cc:207 [mov,mp4,m4a,3gp,3g2,mj2]: <0x7f1fb4076500> moov atom not found
ERROR ../src/ffaudio/ffaudio-core.cc:242 [log_result]: avformat_open_input failed: Invalid data found when processing input

Information about the file:

$ file NoEscape.m4a
NoEscape.m4a: MPEG ADTS, AAC, v4 LC, 44.1 kHz, stereo

Steps to reproduce

1. Visit https://app.box.com/s/s67pqr3khwns1ln2oo59lawxy8hiy8ra
2. Download the aac file from there.
3. Try to open it in Audacious

Expected behavior

File plays. After all, it plays with VLC.

Additional information

• Audacious 4.4 Audacious, Qt Mode, WinAmp class interface
• Devuan GNU/Linux Exacilbur, kernel 6.6.13-amd64
• Cinnamon desktop environment
• Log is attached.
  audacious-log2.txt

[mschwendt]

IMO that's a wrong file extension for an ADTS/AAC file. If the file had the .aac extension, it would work.

[eyalroz]

@mschwendt :

1. I think it's somewhat common to have AAC files named .m4a
2. If audacious notices it's not an MPEG-4 container - I would think it should do some file type determination, starting with likely guesses like AAC. VLC does that.