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Change to recode rules.

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Allow recodes for the first inter frame in each arf group
even when the recode rule is set to ALLOW_RECODE_KFARFGF.

Small gains of 0.05%.

Change-Id: I40cb559d36a2bf0ebf5cf758c3f92e452b480577
This commit is contained in:
paulwilkins 2016-08-09 10:50:33 +01:00
parent fe4dd4f43f
commit de3b769524
1 changed files with 13 additions and 1 deletions
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14
vp9/encoder/vp9_encoder.c
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@ -2394,6 +2394,17 @@ static int big_rate_miss(VP9_COMP *cpi, int high_limit, int low_limit) {
(rc->projected_frame_size < (low_limit / 2));
}
// test in two pass for the first
static int two_pass_first_group_inter(VP9_COMP *cpi) {
TWO_PASS *const twopass = &cpi->twopass;
GF_GROUP *const gf_group = &twopass->gf_group;
if ((cpi->oxcf.pass == 2) &&
(gf_group->index == gf_group->first_inter_index))
return 1;
else
return 0;
}
// Function to test for conditions that indicate we should loop
// back and recode a frame.
static int recode_loop_test(VP9_COMP *cpi, int high_limit, int low_limit, int q,
@ -2406,7 +2417,8 @@ static int recode_loop_test(VP9_COMP *cpi, int high_limit, int low_limit, int q,
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))) {
((frame_is_kfgfarf || two_pass_first_group_inter(cpi)) &&
(cpi->sf.recode_loop == ALLOW_RECODE_KFARFGF))) {
if (frame_is_kfgfarf && (oxcf->resize_mode == RESIZE_DYNAMIC) &&
scale_down(cpi, q)) {
// Code this group at a lower resolution.