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vp9: Adjust speed features for speed 8 at low resoln.

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For low resolutions (<= CIF): use quarter-pixel and simple_block_yrd.

~5% gain on RTC_derf.
~6-7% slowdown on ARM.

Change-Id: I4439ebd1116b9decac04786503f978840b68a60c
This commit is contained in:
Marco 2017-04-14 10:16:44 -07:00
parent b937f1c839
commit 5f39262dcc
1 changed files with 7 additions and 3 deletions
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10
vp9/encoder/vp9_speed_features.c
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@ -533,7 +533,11 @@ static void set_rt_speed_feature_framesize_independent(
if (cpi->row_mt && cpi->oxcf.max_threads > 1)
sf->adaptive_rd_thresh_row_mt = 1;
sf->mv.subpel_force_stop = (content == VP9E_CONTENT_SCREEN) ? 3 : 2;
if (content == VP9E_CONTENT_SCREEN)
sf->mv.subpel_force_stop = 3;
else if (cm->width > 352 && cm->height > 288)
sf->mv.subpel_force_stop = 2;
if (content == VP9E_CONTENT_SCREEN) sf->lpf_pick = LPF_PICK_MINIMAL_LPF;
// Only keep INTRA_DC mode for speed 8.
if (!is_keyframe) {
@ -555,13 +559,13 @@ static void set_rt_speed_feature_framesize_independent(
}
// Since the short_circuit_low_temp_var is used, reduce the
// adaptive_rd_thresh level.
if (cm->width > 320 && cm->height > 240)
if (cm->width > 352 && cm->height > 288)
sf->adaptive_rd_thresh = 1;
else
sf->adaptive_rd_thresh = 2;
}
sf->limit_newmv_early_exit = 0;
if (cm->width > 320 && cm->height > 240) sf->use_simple_block_yrd = 1;
sf->use_simple_block_yrd = 1;
}
// Turn off adaptive_rd_thresh if row_mt is on for speed 5, 6, 7.
if (speed >= 5 && speed < 8 && cpi->row_mt && cpi->num_workers > 1) {