Preview is not generated for m4a files

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, Master
• Fix Version/s: 7.0.0 DXP FP1, 7.0.2 CE GA3, 7.0.0 DXP SP1, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: DM
• Labels:
  • QA-NF
  • liferay-digital-enterprise-70-sp1
  • liferay-fixpack-de-1-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1.5
• Fix Priority: 2
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/41898

Steps to reproduce:

1. Enable Xuggler from Control Panel (enable after download and restart).
2. Upload a m4a file (see an example attached)

Expected behavior: it is possible to play audio file from documents & media.
Actual behavior: audio file can't be played through documents & media