Fix incorrect comparison of frame size

The width and height stored in the reference frames are padded out to
a multiple of 16. The Width and Height variables in common are the
displayed size, which may be smaller. The incorrect comparison was
causing scaling related code to be called when it shouldn't have
been. A notable case where this happens is 1080p, since 1088 != 1080.

Change-Id: I55f743eeeeaefbf2e777e193bc9a77ff726e16b5

diff --git a/vp9/encoder/vp9_onyx_if.c b/vp9/encoder/vp9_onyx_if.c
index ab3d19936ea1aeb93fa121343c2efe05afd9ea0d..b9d3049f271a57badb31f49cd434a4a37538d2e3 100644 (file)
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -2598,7 +2598,7 @@ static void scale_references(VP9_COMP *cpi) {
   for (i = 0; i < 3; i++) {
     YV12_BUFFER_CONFIG *ref = &cm->yv12_fb[cm->ref_frame_map[i]];
 
-    if (ref->y_width != cm->Width || ref->y_height != cm->Height) {
+    if (ref->y_width != cm->mb_cols * 16 || ref->y_height != cm->mb_rows * 16) {
       int new_fb = get_free_fb(cm);
 
       vp8_yv12_realloc_frame_buffer(&cm->yv12_fb[new_fb],
@@ -2672,8 +2672,8 @@ static void encode_frame_to_data_rate(VP9_COMP *cpi,
   int64_t mcomp_filter_cost[4];
 
   /* Scale the source buffer, if required */
-  if (cm->Width != cpi->un_scaled_source->y_width ||
-      cm->Height != cpi->un_scaled_source->y_height) {
+  if (cm->mb_cols * 16 != cpi->un_scaled_source->y_width ||
+      cm->mb_rows * 16 != cpi->un_scaled_source->y_height) {
     scale_and_extend_frame(cpi->un_scaled_source, &cpi->scaled_source);
     cpi->Source = &cpi->scaled_source;
   } else {