[Bug 753737] opusenc: Bitrate limit is too low

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Tue Aug 18 07:14:37 PDT 2015


https://bugzilla.gnome.org/show_bug.cgi?id=753737

--- Comment #4 from caiz8cw02 at sneakemail.com ---
255 kbps is approximately the maximum useful value, in the sense that if you
ask for more than this, libopus will either pad with zeros or use fewer bits
(depending on other settings). But yes, it will clamp per-channel values inside
libopus. I.e., the unclamped value is used to make allocations to each
channel/stream, and then the per-stream values are clamped to 300000 kbps per
channel, mostly to avoid problems with arithmetic overflow deeper inside the
codec.

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