From: Deepa K G Date: Tue, 29 Jan 2019 14:28:05 +0000 (+0530) Subject: Fix in key frame detection X-Git-Tag: v1.8.1~90^2 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=640735025e578b68d5c7444a41b11b7bd35e32c4;p=libvpx Fix in key frame detection The frame next to scene cut frame does not usually have a high second ref useage. Thus the sec ref useage of the frame next to scene cut frame is tested against a threshold for scene cut detection. With this change scene cut detection is improved for contents where genuine scene cuts were being missed. Change-Id: I11190d848fa1c1dcd63aab81da799354371e2a30 --- diff --git a/vp9/encoder/vp9_firstpass.c b/vp9/encoder/vp9_firstpass.c index ae84dd5f1..28570f7d0 100644 --- a/vp9/encoder/vp9_firstpass.c +++ b/vp9/encoder/vp9_firstpass.c @@ -2820,7 +2820,7 @@ static int test_candidate_kf(TWO_PASS *twopass, // See above for an explanation of the test criteria. // If so, then examine how well it predicts subsequent frames. if (!detect_flash(twopass, -1) && !detect_flash(twopass, 0) && - (this_frame->pcnt_second_ref < SECOND_REF_USEAGE_THRESH) && + (next_frame->pcnt_second_ref < SECOND_REF_USEAGE_THRESH) && ((this_frame->pcnt_inter < VERY_LOW_INTER_THRESH) || (slide_transition(this_frame, last_frame, next_frame)) || (intra_step_transition(this_frame, last_frame, next_frame)) ||