tree ed5b462554e4e7be176a2fdba00dd5f6043bc077
parent 426c0668ccd2bd66381594ffb885ff3f63d4137f
author Marco Paniconi <marpan@google.com> 1564979412 -0700
committer Marco Paniconi <marpan@google.com> 1565206996 +0000

Extend encoder control for refreshing buffer slots.

Extend the existing control to allow for refreshing any of the
allowed buffer slots (the current AOM_EFLAGS_UPD_# flags only
allow for updating 3 buffers (last/golden/altref)). So this
change removes the need to set the AOM_EFLAG_NO_UPD_# encoder flags,
and allows user to also update any reference.

This allows for greater flexibility for RTC applications to
configure SVC/layered structures.

Change-Id: I38fc957943d968636df9434071da82db335a2c30