Vivia Nikolaidou 41950f2aba fdkaacenc: Add missing SURROUND mappings
SURROUND is more to spec according to the FIXME comments, so add this.

Also add SIDE for 5 and 5.1 because of ffmpeg compatibility, because the
following pipeline downmixes to mono otherwise:

gst-launch-1.0 audiotestsrc num-buffers=1 ! audio/x-raw, channels=6 !
avenc_ac3 ! avdec_ac3 ! audioconvert ! fdkaacenc ! fakesink -v

Fixes #1327

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1352>
2020-06-22 07:14:20 +00:00
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