tree 963a5f39dc2c35ed49f1c269fcc395339f4ad970
parent ed7b1622ce7df70f67cbf5653b3f960610f848b4
author Urvang Joshi <urvang@google.com> 1586297511 -0700
committer Urvang Joshi <urvang@google.com> 1586324375 +0000

Superres recode bugfix

When we try recoding the 1st frame with/without superres, different
superblock sizes may be picked depending on frame resolution. This
change in superblock size leads to some dimensions like 'mi_cols',
'mi_rows', 'mi_stride' etc becoming invalid. In turn, allocated sizes
and strides of some arrays become invalid as well.

We avoid this by separate variables for superres_mode provided by user
(existing one in 'oxcf'), and the one used by current encoding (new one
in 'cpi').

Certain top-level decisions like superblock size use the user-provided
oxcf->superres_mode, while most other logic uses cpi->superres_mode.

Fixes a couple of bugs.

Tested that SUPERRES_RECODE_ALL_RATIOS=1 works correctly as well.

BUG=aomedia:2536
BUG=aomedia:2569

Change-Id: I581951e1942779913ab2b7450e0e3cc58d79d87a