Stop using last_width and last_height

Instead use cm->prev_frame->width and cm->prev_frame->height.

Change-Id: I2bdf0613ea8f871150501d48db13b7894f98d4df

av1/decoder/decodeframe.c

diff --git a/av1/decoder/decodeframe.c b/av1/decoder/decodeframe.c
index e77847b..547c117 100644
--- a/av1/decoder/decodeframe.c
+++ b/av1/decoder/decodeframe.c
@@ -3191,17 +3191,15 @@
 }
 
 static void dec_setup_frame_boundary_info(AV1_COMMON *const cm) {
-  {
-    int row, col;
-    for (row = 0; row < cm->mi_rows; ++row) {
-      BOUNDARY_TYPE *bi = cm->boundary_info + row * cm->mi_stride;
-      for (col = 0; col < cm->mi_cols; ++col) {
-        *bi = 0;
-        bi++;
-      }
+  int row, col;
+  for (row = 0; row < cm->mi_rows; ++row) {
+    BOUNDARY_TYPE *bi = cm->boundary_info + row * cm->mi_stride;
+    for (col = 0; col < cm->mi_cols; ++col) {
+      *bi = 0;
+      bi++;
     }
-    av1_setup_frame_boundary_info(cm);
   }
+  av1_setup_frame_boundary_info(cm);
 }
 
 int av1_decode_frame_headers_and_setup(AV1Decoder *pbi,

av1/encoder/aq_complexity.c

diff --git a/av1/encoder/aq_complexity.c b/av1/encoder/aq_complexity.c
index 94d04e2..c5a6bc8 100644
--- a/av1/encoder/aq_complexity.c
+++ b/av1/encoder/aq_complexity.c
@@ -49,8 +49,8 @@
   AV1_COMMON *const cm = &cpi->common;
   struct segmentation *const seg = &cm->seg;
   int resolution_change =
-      (cm->width != cm->last_width || cm->height != cm->last_height) &&
-      cm->prev_frame;
+      cm->prev_frame && (cm->width != cm->prev_frame->width ||
+                         cm->height != cm->prev_frame->height);
 
   // Make SURE use of floating point in this function is safe.
   aom_clear_system_state();

av1/encoder/aq_cyclicrefresh.c

diff --git a/av1/encoder/aq_cyclicrefresh.c b/av1/encoder/aq_cyclicrefresh.c
index 6b2b091..dc6a100 100644
--- a/av1/encoder/aq_cyclicrefresh.c
+++ b/av1/encoder/aq_cyclicrefresh.c
@@ -482,8 +482,8 @@
   struct segmentation *const seg = &cm->seg;
   const int apply_cyclic_refresh = apply_cyclic_refresh_bitrate(cm, rc);
   int resolution_change =
-      (cm->width != cm->last_width || cm->height != cm->last_height) &&
-      cm->prev_frame;
+      cm->prev_frame && (cm->width != cm->prev_frame->width ||
+                         cm->height != cm->prev_frame->height);
   if (resolution_change) {
     memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
     av1_clearall_segfeatures(seg);

av1/encoder/aq_variance.c

diff --git a/av1/encoder/aq_variance.c b/av1/encoder/aq_variance.c
index d73ebdb..a97fe3d 100644
--- a/av1/encoder/aq_variance.c
+++ b/av1/encoder/aq_variance.c
@@ -48,8 +48,8 @@
   int i;
 
   int resolution_change =
-      (cm->width != cm->last_width || cm->height != cm->last_height) &&
-      cm->prev_frame;
+      cm->prev_frame && (cm->width != cm->prev_frame->width ||
+                         cm->height != cm->prev_frame->height);
   if (resolution_change) {
     memset(cpi->segmentation_map, 0, cm->mi_rows * cm->mi_cols);
     av1_clearall_segfeatures(seg);