shithub: libvpx

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loop_filter_rows_mt: remove dependency on 'last_height'

using this to control reallocation would miss a change if the function
were not called for every frame.
fixes potential memory corruption by the subsequent memset

Change-Id: I4c6bb6ab68803104fc824c7e27cc2f9b2cf53e33

--- a/vp9/common/vp9_thread_common.c

+++ b/vp9/common/vp9_thread_common.c

@@ -153,7 +153,7 @@

   const int num_workers = MIN(nworkers, tile_cols);

   int i;

-  if (!lf_sync->sync_range || cm->last_height != cm->height ||

+  if (!lf_sync->sync_range || sb_rows != lf_sync->rows ||

       num_workers > lf_sync->num_workers) {

     vp9_loop_filter_dealloc(lf_sync);

     vp9_loop_filter_alloc(lf_sync, cm, sb_rows, cm->width, num_workers);