shithub: libvpx

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Dynamic resize for 1 pass: update of golden frame.

In aq-mode=3 under a resizing action (i.e., resize_pending != 0),
force an update of the golden reference frame.

Change-Id: I14806f6db71b5f8c827678cc5e1fc913c138a9a4

--- a/vp9/encoder/vp9_aq_cyclicrefresh.c

+++ b/vp9/encoder/vp9_aq_cyclicrefresh.c

@@ -347,7 +347,10 @@

   // For video conference clips, if the background has high motion in current

   // frame because of the camera movement, set this frame as the golden frame.

   // Use 70% and 5% as the thresholds for golden frame refreshing.

-  if (cnt1 * 10 > (70 * rows * cols) && cnt2 * 20 < cnt1) {

+  // Also, force this frame as a golden update frame if this frame will change

+  // the resolution (resize_pending != 0).

+  if (cpi->resize_pending != 0 ||

+     (cnt1 * 10 > (70 * rows * cols) && cnt2 * 20 < cnt1)) {

     vp9_cyclic_refresh_set_golden_update(cpi);

     rc->frames_till_gf_update_due = rc->baseline_gf_interval;

@@ -562,4 +565,5 @@

   CYCLIC_REFRESH *const cr = cpi->cyclic_refresh;

   memset(cr->map, 0, cm->mi_rows * cm->mi_cols);

   cr->sb_index = 0;

+  cpi->refresh_golden_frame = 1;

 }