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Merge "Alter adjustment of two pass GF/ARF boost with Q."

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Paul Wilkins 2014-10-20 03:12:06 -07:00 committed by Gerrit Code Review
commit 9c98fb2bab
1 changed files with 12 additions and 25 deletions
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37
vp9/encoder/vp9_firstpass.c
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@ -66,13 +66,6 @@ static void swap_yv12(YV12_BUFFER_CONFIG *a, YV12_BUFFER_CONFIG *b) {
*b = temp;
}
static int gfboost_qadjust(int qindex, vpx_bit_depth_t bit_depth) {
const double q = vp9_convert_qindex_to_q(qindex, bit_depth);
return (int)((0.00000828 * q * q * q) +
(-0.0055 * q * q) +
(1.32 * q) + 79.3);
}
// Resets the first pass file to the given position using a relative seek from
// the current position.
static void reset_fpf_position(TWO_PASS *p,
@ -1317,14 +1310,15 @@ static double calc_frame_boost(VP9_COMP *cpi,
double this_frame_mv_in_out,
double max_boost) {
double frame_boost;
const double lq = vp9_convert_qindex_to_q(cpi->rc.last_q[INTER_FRAME],
cpi->common.bit_depth);
const double q_correction = MIN((0.8 + (lq * 0.001)), 1.0);
const double lq =
vp9_convert_qindex_to_q(cpi->rc.avg_frame_qindex[INTER_FRAME],
cpi->common.bit_depth);
const double boost_correction = MIN((0.5 + (lq * 0.015)), 1.5);
// Underlying boost factor is based on inter error ratio.
frame_boost = (BASELINE_ERR_PER_MB * cpi->common.MBs) /
DOUBLE_DIVIDE_CHECK(this_frame->coded_error);
frame_boost = frame_boost * BOOST_FACTOR * q_correction;
frame_boost = frame_boost * BOOST_FACTOR * boost_correction;
// Increase boost for frames where new data coming into frame (e.g. zoom out).
// Slightly reduce boost if there is a net balance of motion out of the frame
@ -1335,7 +1329,7 @@ static double calc_frame_boost(VP9_COMP *cpi,
else
frame_boost += frame_boost * (this_frame_mv_in_out / 2.0);
return MIN(frame_boost, max_boost * q_correction);
return MIN(frame_boost, max_boost * boost_correction);
}
static int calc_arf_boost(VP9_COMP *cpi, int offset,
@ -1874,19 +1868,8 @@ static void define_gf_group(VP9_COMP *cpi, FIRSTPASS_STATS *this_frame) {
gf_group_bits = calculate_total_gf_group_bits(cpi, gf_group_err);
// Calculate the extra bits to be used for boosted frame(s)
{
int q = rc->last_q[INTER_FRAME];
int boost =
(rc->gfu_boost * gfboost_qadjust(q, cpi->common.bit_depth)) / 100;
// Set max and minimum boost and hence minimum allocation.
boost = clamp(boost, MIN_ARF_GF_BOOST,
(rc->baseline_gf_interval + 1) * 200);
// Calculate the extra bits to be used for boosted frame(s)
gf_arf_bits = calculate_boost_bits(rc->baseline_gf_interval,
boost, gf_group_bits);
}
gf_arf_bits = calculate_boost_bits(rc->baseline_gf_interval,
rc->gfu_boost, gf_group_bits);
// Adjust KF group bits and error remaining.
twopass->kf_group_error_left -= (int64_t)gf_group_err;
@ -2380,7 +2363,11 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
section_target_bandwidth);
twopass->active_worst_quality = tmp_q;
rc->ni_av_qi = tmp_q;
rc->last_q[INTER_FRAME] = tmp_q;
rc->avg_q = vp9_convert_qindex_to_q(tmp_q, cm->bit_depth);
rc->avg_frame_qindex[INTER_FRAME] = tmp_q;
rc->last_q[KEY_FRAME] = (tmp_q + cpi->oxcf.best_allowed_q) / 2;
rc->avg_frame_qindex[KEY_FRAME] = rc->last_q[KEY_FRAME];
}
vp9_zero(this_frame);
if (EOF == input_stats(twopass, &this_frame))