opusenc: Bitrate limit is too low

Submitted by cai..@..il.com

Link to original bug (#753737)

Description

Created attachment 309431
opusenc: Raise bitrate limit

The bitrate property has a limit of 650 kb/s. However the actual valid limit is around 255 kb/s per channel, and Opus supports up to 8 channels with defined mappings, and up to 255 channels with a user-defined mapping.

Patch 309431, "opusenc: Raise bitrate limit":
0001-opusenc-Raise-bitrate-limit.patch