/usr/share/gstreamer-1.0/presets/GstVoAmrwbEnc.prs is in gstreamer1.0-plugins-bad 1.2.3-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [_presets_]
version=0.10
element-name=GstVoAmrwbEnc
[enhance-size]
_meta/comment=Maximize compression, lowest bitrate
band-mode=0
[enhance-quality]
_meta/comment=Maximize quality, highest bitrate
band-mode=8
|