Commit 6769143c authored by Dmitry Kovalev's avatar Dmitry Kovalev Committed by Gerrit Code Review
Browse files

Merge "Moving compute_qdelta functions into vp9_ratectrl.{h, c}."

parents b03e7757 91dbac17
......@@ -48,8 +48,7 @@ void vp9_setup_in_frame_q_adj(VP9_COMP *cpi) {
// Use some of the segments for in frame Q adjustment.
for (segment = 1; segment < 2; segment++) {
const int qindex_delta =
vp9_compute_qdelta_by_rate(cpi,
cm->base_qindex,
vp9_compute_qdelta_by_rate(&cpi->rc, cm->frame_type, cm->base_qindex,
in_frame_q_adj_ratio[segment]);
vp9_enable_segfeature(seg, segment, SEG_LVL_ALT_Q);
vp9_set_segdata(seg, segment, SEG_LVL_ALT_Q, qindex_delta);
......
......@@ -241,7 +241,7 @@ void vp9_cyclic_refresh_setup(VP9_COMP *const cpi) {
vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
// Set the q delta for segment 1.
qindex_delta = vp9_compute_qdelta_by_rate(cpi,
qindex_delta = vp9_compute_qdelta_by_rate(rc, cm->frame_type,
cm->base_qindex,
rate_ratio_qdelta);
// TODO(marpan): Incorporate the actual-vs-target rate over/undershoot from
......
......@@ -99,7 +99,7 @@ void vp9_vaq_frame_setup(VP9_COMP *cpi) {
continue;
}
qindex_delta = vp9_compute_qdelta(cpi, base_q, base_q * Q_RATIO(i));
qindex_delta = vp9_compute_qdelta(&cpi->rc, base_q, base_q * Q_RATIO(i));
vp9_set_segdata(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q, qindex_delta);
vp9_enable_segfeature(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q);
......
......@@ -255,56 +255,6 @@ static void restore_coding_context(VP9_COMP *cpi) {
cm->fc = cc->fc;
}
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a target q value
int vp9_compute_qdelta(const VP9_COMP *cpi, double qstart, double qtarget) {
const RATE_CONTROL *const rc = &cpi->rc;
int start_index = rc->worst_quality;
int target_index = rc->worst_quality;
int i;
// Convert the average q value to an index.
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
start_index = i;
if (vp9_convert_qindex_to_q(i) >= qstart)
break;
}
// Convert the q target to an index
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
target_index = i;
if (vp9_convert_qindex_to_q(i) >= qtarget)
break;
}
return target_index - start_index;
}
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a value that should equate to the given rate ratio.
int vp9_compute_qdelta_by_rate(VP9_COMP *cpi, int qindex,
double rate_target_ratio) {
const FRAME_TYPE frame_type = cpi->common.frame_type;
const RATE_CONTROL *const rc = &cpi->rc;
int target_index = rc->worst_quality;
int i;
// Look up the current projected bits per block for the base index
const int base_bits_per_mb = vp9_rc_bits_per_mb(frame_type, qindex, 1.0);
// Find the target bits per mb based on the base value and given ratio.
const int target_bits_per_mb = (int)(rate_target_ratio * base_bits_per_mb);
// Convert the q target to an index
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
target_index = i;
if (vp9_rc_bits_per_mb(frame_type, i, 1.0) <= target_bits_per_mb )
break;
}
return target_index - qindex;
}
static void configure_static_seg_features(VP9_COMP *cpi) {
VP9_COMMON *const cm = &cpi->common;
const RATE_CONTROL *const rc = &cpi->rc;
......@@ -348,7 +298,7 @@ static void configure_static_seg_features(VP9_COMP *cpi) {
seg->update_map = 1;
seg->update_data = 1;
qi_delta = vp9_compute_qdelta(cpi, rc->avg_q, rc->avg_q * 0.875);
qi_delta = vp9_compute_qdelta(rc, rc->avg_q, rc->avg_q * 0.875);
vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta - 2);
vp9_set_segdata(seg, 1, SEG_LVL_ALT_LF, -2);
......@@ -369,7 +319,7 @@ static void configure_static_seg_features(VP9_COMP *cpi) {
seg->update_data = 1;
seg->abs_delta = SEGMENT_DELTADATA;
qi_delta = vp9_compute_qdelta(cpi, rc->avg_q, rc->avg_q * 1.125);
qi_delta = vp9_compute_qdelta(rc, rc->avg_q, rc->avg_q * 1.125);
vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta + 2);
vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
......
......@@ -609,11 +609,6 @@ int vp9_get_y_sse(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b);
void vp9_alloc_compressor_data(VP9_COMP *cpi);
int vp9_compute_qdelta(const VP9_COMP *cpi, double qstart, double qtarget);
int vp9_compute_qdelta_by_rate(VP9_COMP *cpi, int base_q_index,
double rate_target_ratio);
void vp9_scale_references(VP9_COMP *cpi);
void vp9_update_reference_frames(VP9_COMP *cpi);
......
......@@ -460,7 +460,7 @@ static int rc_pick_q_and_bounds_one_pass_cbr(const VP9_COMP *cpi,
if (rc->this_key_frame_forced) {
int qindex = rc->last_boosted_qindex;
double last_boosted_q = vp9_convert_qindex_to_q(qindex);
int delta_qindex = vp9_compute_qdelta(cpi, last_boosted_q,
int delta_qindex = vp9_compute_qdelta(rc, last_boosted_q,
(last_boosted_q * 0.75));
active_best_quality = MAX(qindex + delta_qindex, rc->best_quality);
} else if (cm->current_video_frame > 0) {
......@@ -482,8 +482,8 @@ static int rc_pick_q_and_bounds_one_pass_cbr(const VP9_COMP *cpi,
// Convert the adjustment factor to a qindex delta
// on active_best_quality.
q_val = vp9_convert_qindex_to_q(active_best_quality);
active_best_quality += vp9_compute_qdelta(cpi, q_val, q_val *
q_adj_factor);
active_best_quality += vp9_compute_qdelta(rc, q_val,
q_val * q_adj_factor);
}
} else if (!rc->is_src_frame_alt_ref &&
!cpi->use_svc &&
......@@ -572,8 +572,8 @@ static int rc_pick_q_and_bounds_one_pass_vbr(const VP9_COMP *cpi,
if (rc->this_key_frame_forced) {
int qindex = rc->last_boosted_qindex;
double last_boosted_q = vp9_convert_qindex_to_q(qindex);
int delta_qindex = vp9_compute_qdelta(cpi, last_boosted_q,
(last_boosted_q * 0.75));
int delta_qindex = vp9_compute_qdelta(rc, last_boosted_q,
last_boosted_q * 0.75);
active_best_quality = MAX(qindex + delta_qindex, rc->best_quality);
} else if (cm->current_video_frame > 0) {
// not first frame of one pass and kf_boost is set
......@@ -594,15 +594,15 @@ static int rc_pick_q_and_bounds_one_pass_vbr(const VP9_COMP *cpi,
// Convert the adjustment factor to a qindex delta
// on active_best_quality.
q_val = vp9_convert_qindex_to_q(active_best_quality);
active_best_quality += vp9_compute_qdelta(cpi, q_val, q_val *
q_adj_factor);
active_best_quality += vp9_compute_qdelta(rc, q_val,
q_val * q_adj_factor);
}
#else
double current_q;
// Force the KF quantizer to be 30% of the active_worst_quality.
current_q = vp9_convert_qindex_to_q(active_worst_quality);
active_best_quality = active_worst_quality
+ vp9_compute_qdelta(cpi, current_q, current_q * 0.3);
+ vp9_compute_qdelta(rc, current_q, current_q * 0.3);
#endif
} else if (!rc->is_src_frame_alt_ref &&
(cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)) {
......@@ -721,7 +721,7 @@ static int rc_pick_q_and_bounds_one_pass_vbr(const VP9_COMP *cpi,
assert(level >= 0);
new_q = current_q * (1.0 - (0.2 * (cpi->max_arf_level - level)));
q = active_worst_quality +
vp9_compute_qdelta(cpi, current_q, new_q);
vp9_compute_qdelta(rc, current_q, new_q);
*bottom_index = q;
*top_index = q;
......@@ -754,8 +754,8 @@ static int rc_pick_q_and_bounds_two_pass(const VP9_COMP *cpi,
if (rc->this_key_frame_forced) {
int qindex = rc->last_boosted_qindex;
double last_boosted_q = vp9_convert_qindex_to_q(qindex);
int delta_qindex = vp9_compute_qdelta(cpi, last_boosted_q,
(last_boosted_q * 0.75));
int delta_qindex = vp9_compute_qdelta(rc, last_boosted_q,
last_boosted_q * 0.75);
active_best_quality = MAX(qindex + delta_qindex, rc->best_quality);
} else {
// Not forced keyframe.
......@@ -779,15 +779,15 @@ static int rc_pick_q_and_bounds_two_pass(const VP9_COMP *cpi,
// Convert the adjustment factor to a qindex delta
// on active_best_quality.
q_val = vp9_convert_qindex_to_q(active_best_quality);
active_best_quality += vp9_compute_qdelta(cpi, q_val, q_val *
q_adj_factor);
active_best_quality += vp9_compute_qdelta(rc, q_val,
q_val * q_adj_factor);
}
#else
double current_q;
// Force the KF quantizer to be 30% of the active_worst_quality.
current_q = vp9_convert_qindex_to_q(active_worst_quality);
active_best_quality = active_worst_quality
+ vp9_compute_qdelta(cpi, current_q, current_q * 0.3);
+ vp9_compute_qdelta(rc, current_q, current_q * 0.3);
#endif
} else if (!rc->is_src_frame_alt_ref &&
(cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame)) {
......@@ -904,7 +904,7 @@ static int rc_pick_q_and_bounds_two_pass(const VP9_COMP *cpi,
assert(level >= 0);
new_q = current_q * (1.0 - (0.2 * (cpi->max_arf_level - level)));
q = active_worst_quality +
vp9_compute_qdelta(cpi, current_q, new_q);
vp9_compute_qdelta(rc, current_q, new_q);
*bottom_index = q;
*top_index = q;
......@@ -1282,3 +1282,46 @@ void vp9_rc_get_one_pass_cbr_params(VP9_COMP *cpi) {
rc->frames_till_gf_update_due = INT_MAX;
rc->baseline_gf_interval = INT_MAX;
}
int vp9_compute_qdelta(const RATE_CONTROL *rc, double qstart, double qtarget) {
int start_index = rc->worst_quality;
int target_index = rc->worst_quality;
int i;
// Convert the average q value to an index.
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
start_index = i;
if (vp9_convert_qindex_to_q(i) >= qstart)
break;
}
// Convert the q target to an index
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
target_index = i;
if (vp9_convert_qindex_to_q(i) >= qtarget)
break;
}
return target_index - start_index;
}
int vp9_compute_qdelta_by_rate(const RATE_CONTROL *rc, FRAME_TYPE frame_type,
int qindex, double rate_target_ratio) {
int target_index = rc->worst_quality;
int i;
// Look up the current projected bits per block for the base index
const int base_bits_per_mb = vp9_rc_bits_per_mb(frame_type, qindex, 1.0);
// Find the target bits per mb based on the base value and given ratio.
const int target_bits_per_mb = (int)(rate_target_ratio * base_bits_per_mb);
// Convert the q target to an index
for (i = rc->best_quality; i < rc->worst_quality; ++i) {
target_index = i;
if (vp9_rc_bits_per_mb(frame_type, i, 1.0) <= target_bits_per_mb )
break;
}
return target_index - qindex;
}
......@@ -160,6 +160,15 @@ int vp9_rc_clamp_pframe_target_size(const struct VP9_COMP *const cpi,
// This function is called only from the vp9_rc_get_..._params() functions.
void vp9_rc_set_frame_target(struct VP9_COMP *cpi, int target);
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a target q value
int vp9_compute_qdelta(const RATE_CONTROL *rc, double qstart, double qtarget);
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a value that should equate to the given rate ratio.
int vp9_compute_qdelta_by_rate(const RATE_CONTROL *rc, FRAME_TYPE frame_type,
int qindex, double rate_target_ratio);
#ifdef __cplusplus
} // extern "C"
#endif
......
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