From 8842ee0b0d7975f72067b56ab66a7acbe22a65c7 Mon Sep 17 00:00:00 2001 From: paulwilkins Date: Wed, 11 Oct 2017 10:12:20 +0100 Subject: [PATCH] Corpus VBR tweak for undershoot. In cases of strong undershoot adjust Q range down faster. Change-Id: I84982beceb3c9b6dc50e52e4a6e891c7dd395d03 --- vp9/encoder/vp9_encoder.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/vp9/encoder/vp9_encoder.c b/vp9/encoder/vp9_encoder.c index 765c0578b..20901d21d 100644 --- a/vp9/encoder/vp9_encoder.c +++ b/vp9/encoder/vp9_encoder.c @@ -3956,6 +3956,11 @@ static void encode_with_recode_loop(VP9_COMP *cpi, size_t *size, // rate miss. If so adjust the active maxQ for the subsequent frames. if (q > cpi->twopass.active_worst_quality) { cpi->twopass.active_worst_quality = q; +#ifdef CORPUS_VBR_EXPERIMENT + } else if (q == q_low && rc->projected_frame_size < rc->this_frame_target) { + cpi->twopass.active_worst_quality = + VPXMAX(q, cpi->twopass.active_worst_quality - 1); +#endif } } -- 2.40.0