Ralph Giles authored Jan 05, 2012 and James Zern committed Jan 06, 2012

The default maximum keyframe interval is 9999, or over five minutes
at normal video rates. When the encoder produces streams with such
a long interval seeking (with correct output) is more expensive,
and live streaming is impossible.

Of course the encoding application should set this parameter
based on its knowledge of the intended use of the stream, but
reducing the default gives better results for applications
which do not.

Change-Id: I900b15d74ce72ecc3ade4d43f758c5cf97a2098a