tree f81b48eb5aefde66f66c998042c039d29a1fafb8
parent c187e7a5a72ee854eebb711c36ce9cad079afb66
author Urvang Joshi <urvang@google.com> 1604077116 -0700
committer Urvang Joshi <urvang@google.com> 1604351236 +0000

SUPERRES_AUTO: don't save/restore cur_frame->buf.

Provides speed-up, avoids potential crash, no change in stats.

This was unnecessary:
- The cur_frame->buf is reallocated to appropriate size (if needed) at
the beginning of frame encode anyway, and
- It wasn't needed to save/restore actual content

It was also leading to a potential out-of-bound write in 'seg_map' when
cm->cur_frame->mi_cols != cm->mi_params.mi_cols, in
av1_setup_past_independence().

Related changes:
- Uncomment an assert in aom_yv12_copy_frame_c() that would have caught
this problem.
- Use cm->cur_frame->mi_cols / mi_rows instead of cm->mi_params.mi_cols
/ mi_rows when appropriate.

Change-Id: I7e9a3538f5e8e71879774461a898483dadb41afb