vp9_aq_cyclicrefresh: fix unused-function warning
delete apply_cyclic_refresh_bitrate(). unused since:
3472cbb vp9 aq-mode=3: Keep it on even at low bitrates.
Change-Id: I0fac9a31b59504e31000ac3a8f0b68e8d4320113
diff --git a/vp9/encoder/vp9_aq_cyclicrefresh.c b/vp9/encoder/vp9_aq_cyclicrefresh.c
index 4c75ffa..a2e3918 100644
--- a/vp9/encoder/vp9_aq_cyclicrefresh.c
+++ b/vp9/encoder/vp9_aq_cyclicrefresh.c
@@ -59,27 +59,6 @@
vpx_free(cr);
}
-// Check if we should turn off cyclic refresh based on bitrate condition.
-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
- // larger than bit cost of segmentation. Segment map bit cost should scale
- // with number of seg blocks, so compare available bits to number of blocks.
- // Average bits available per frame = avg_frame_bandwidth
- // Number of (8x8) blocks in frame = mi_rows * mi_cols;
- const float factor = 0.15f;
- const int number_blocks = cm->mi_rows * cm->mi_cols;
- // The condition below corresponds to turning off at target bitrates:
- // (at 30fps), ~8kbps for CIF, 20kbps for VGA, 60kps for HD/720p.
- // Also turn off at very small frame sizes, to avoid too large fraction of
- // superblocks to be refreshed per frame. Threshold below is less than QCIF.
- if (rc->avg_frame_bandwidth < factor * number_blocks ||
- number_blocks / 64 < 5)
- return 0;
- else
- return 1;
-}
-
// Check if this coding block, of size bsize, should be considered for refresh
// (lower-qp coding). Decision can be based on various factors, such as
// size of the coding block (i.e., below min_block size rejected), coding
