shithub: libvpx

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Force recode for bad rate misses.

Adds a second threshold for recodes even on frames where
recode is normally disabled if there is a big rate miss.

Change-Id: Ifd4a34707da55ec15eb7cfb87de4644b8d76deb2

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -2722,6 +2722,13 @@

   return scale;

 }

+static int big_rate_miss(VP9_COMP *cpi, int high_limit, int low_limit) {

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

+

+  return (rc->projected_frame_size > ((high_limit * 3) / 2)) ||

+         (rc->projected_frame_size < (low_limit / 2));

+}

+

 // Function to test for conditions that indicate we should loop

 // back and recode a frame.

 static int recode_loop_test(VP9_COMP *cpi,

@@ -2733,6 +2740,7 @@

   int force_recode = 0;

   if ((rc->projected_frame_size >= rc->max_frame_bandwidth) ||

+      big_rate_miss(cpi, high_limit, low_limit) ||

       (cpi->sf.recode_loop == ALLOW_RECODE) ||

       (frame_is_kfgfarf &&

        (cpi->sf.recode_loop == ALLOW_RECODE_KFARFGF))) {