shithub: libvpx

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vp9 aq-mode=3: Keep it on even at low bitrates.

Change-Id: I6a27db6b9dbe3d8cb3d47ef30fbd52557171cadd

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

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

@@ -60,8 +60,6 @@

 }

 // Check if we should turn off cyclic refresh based on bitrate condition.

-// TODO(marpan): May be better in some cases to just reduce the amount/delta-qp

-// instead of completely shutting off.

 static int apply_cyclic_refresh_bitrate(const VP9_COMMON *cm,

                                         const RATE_CONTROL *rc) {

   // Turn off cyclic refresh if bits available per frame is not sufficiently

@@ -535,7 +533,10 @@

   const RATE_CONTROL *const rc = &cpi->rc;

   CYCLIC_REFRESH *const cr = cpi->cyclic_refresh;

   struct segmentation *const seg = &cm->seg;

-  const int apply_cyclic_refresh  = apply_cyclic_refresh_bitrate(cm, rc);

+  // TODO(marpan): Look into whether we should reduce the amount/delta-qp

+  // instead of completely shutting off at low bitrates. For now keep it on.

+  // const int apply_cyclic_refresh = apply_cyclic_refresh_bitrate(cm, rc);

+  const int apply_cyclic_refresh = 1;

   if (cm->current_video_frame == 0)

     cr->low_content_avg = 0.0;

   // Don't apply refresh on key frame or temporal enhancement layer frames.