vpx/vp9/encoder
Marco Paniconi c9b6c5d5ad vp9-svc: Fix in choose_partitioning for different scaling.
In the SVC encoder LAST ref frame should be the last temporal
reference at the same resolution. This is the case for the default/fixed
patterns, but may not be the case for arbitrary pattern in flexible mode.

Add check that the LAST reference frame has same resolution as the current frame.
If the reference scale for LAST is different from current treat the current
frame as key frame just for the purpose of superblock partitioning.
This avoids potential segfault in vp9_int_pro_motion_estimation() for different
scaled reference.

Change-Id: I4276ff616de46cd4e12c73316f85ae313f170242
2018-04-03 16:21:44 -07:00
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