Thanks @Bart_Maguire that was very useful. I have now fixed it too, although I copied the new ffmpeg file in place of the old one, rather than update the PATH.
Here are the detailed steps to fix it (command line knowledge required)…
- Enable the QNAP Club repository in the App Center (if not already done)
Instructions here… https://www.qnapclub.eu/en/howto/1
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Go to the new repo in App Center and install ffmpeg - this will install version 4.3
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Open a SSH (putty) session
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Find where the current version of ffmpeg lives, mine (v3.3.6) was installed here…
cd /usr/local/medialibrary/bin
- Rename it to ffmpeg_OLD
mv ffmpeg ffmpeg_OLD
- Go to the location of the new version
cd /opt/ffmpeg
- copy it into /usr/local/medialibrary/bin (or wherever your original ffmpeg was located)
cp ffmpeg /usr/local/medialibrary/bin/.
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Restart the Roon Core
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Hopefully should now play AAC files. If you have any issues, rename ffmpeg_OLD back to ffmpeg again.
It looks like the QNAP installed version of ffmpeg has been compiled with most of the decoders disabled so hopefully they will fix this soon.