ref: 7635ee0f3794c8fb2030037f0ec3c2ebff8dc926
parent: 61927ba4ac6390bc98396b9ba30d050f63e720fa
parent: ce7b38459aee4442c66a32647b650de79e35d437
author: Paul Wilkins <paulwilkins@google.com>
date: Wed Feb 15 05:37:02 EST 2017
Merge "Aggressive VBR method."
--- a/vp9/encoder/vp9_encoder.c
+++ b/vp9/encoder/vp9_encoder.c
@@ -3312,6 +3312,9 @@
int frame_under_shoot_limit;
int q = 0, q_low = 0, q_high = 0;
int enable_acl;
+#ifdef AGRESSIVE_VBR
+ int qrange_adj = 1;
+#endif
set_size_independent_vars(cpi);
@@ -3327,6 +3330,17 @@
if (loop_count == 0 || cpi->resize_pending != 0) {set_size_dependent_vars(cpi, &q, &bottom_index, &top_index);
+#ifdef AGRESSIVE_VBR
+ if (two_pass_first_group_inter(cpi)) {+ // Adjustment limits for min and max q
+ qrange_adj = VPXMAX(1, (top_index - bottom_index) / 2);
+
+ bottom_index = VPXMAX(bottom_index - qrange_adj / 2,
+ cpi->oxcf.best_allowed_q);
+ top_index = VPXMIN(cpi->oxcf.worst_allowed_q,
+ top_index + qrange_adj / 2);
+ }
+#endif
// TODO(agrange) Scale cpi->max_mv_magnitude if frame-size has changed.
set_mv_search_params(cpi);
@@ -3592,6 +3606,13 @@
if (cpi->sf.recode_loop >= ALLOW_RECODE_KFARFGF)
if (loop || !enable_acl) restore_coding_context(cpi);
} while (loop);
+
+#ifdef AGRESSIVE_VBR
+ if (two_pass_first_group_inter(cpi)) {+ cpi->twopass.active_worst_quality =
+ VPXMIN(q + qrange_adj, cpi->oxcf.worst_allowed_q);
+ }
+#endif
if (enable_acl) {vp9_encode_frame(cpi);
--- a/vp9/encoder/vp9_firstpass.c
+++ b/vp9/encoder/vp9_firstpass.c
@@ -2464,7 +2464,11 @@
}
// Limit maximum boost based on interval length.
+#ifdef AGRESSIVE_VBR
+ rc->gfu_boost = VPXMIN((int)rc->gfu_boost, i * 140);
+#else
rc->gfu_boost = VPXMIN((int)rc->gfu_boost, i * 200);
+#endif
// Set the interval until the next gf.
rc->baseline_gf_interval = i - (is_key_frame || rc->source_alt_ref_pending);
@@ -2667,10 +2671,16 @@
}
#define FRAMES_TO_CHECK_DECAY 8
-#define KF_MAX_FRAME_BOOST 96.0
#define MIN_KF_TOT_BOOST 300
-#define MAX_KF_TOT_BOOST 5400
#define KF_BOOST_SCAN_MAX_FRAMES 32
+
+#ifdef AGRESSIVE_VBR
+#define KF_MAX_FRAME_BOOST 80.0
+#define MAX_KF_TOT_BOOST 4800
+#else
+#define KF_MAX_FRAME_BOOST 96.0
+#define MAX_KF_TOT_BOOST 5400
+#endif
static void find_next_key_frame(VP9_COMP *cpi, FIRSTPASS_STATS *this_frame) {int i, j;
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -93,10 +93,17 @@
static int rtc_minq_12[QINDEX_RANGE];
#endif
+#ifdef AGRESSIVE_VBR
+static int gf_high = 2400;
+static int gf_low = 400;
+static int kf_high = 4000;
+static int kf_low = 400;
+#else
static int gf_high = 2000;
static int gf_low = 400;
static int kf_high = 5000;
static int kf_low = 400;
+#endif
// Functions to compute the active minq lookup table entries based on a
// formulaic approach to facilitate easier adjustment of the Q tables.
@@ -126,9 +133,14 @@
const double maxq = vp9_convert_qindex_to_q(i, bit_depth);
kf_low_m[i] = get_minq_index(maxq, 0.000001, -0.0004, 0.150, bit_depth);
kf_high_m[i] = get_minq_index(maxq, 0.0000021, -0.00125, 0.55, bit_depth);
+#ifdef AGRESSIVE_VBR
+ arfgf_low[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.275, bit_depth);
+ inter[i] = get_minq_index(maxq, 0.00000271, -0.00113, 0.80, bit_depth);
+#else
arfgf_low[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.30, bit_depth);
- arfgf_high[i] = get_minq_index(maxq, 0.0000021, -0.00125, 0.55, bit_depth);
inter[i] = get_minq_index(maxq, 0.00000271, -0.00113, 0.70, bit_depth);
+#endif
+ arfgf_high[i] = get_minq_index(maxq, 0.0000021, -0.00125, 0.55, bit_depth);
rtc[i] = get_minq_index(maxq, 0.00000271, -0.00113, 0.70, bit_depth);
}
}
--- a/vp9/encoder/vp9_ratectrl.h
+++ b/vp9/encoder/vp9_ratectrl.h
@@ -21,6 +21,9 @@
extern "C" {#endif
+// Used to control agressive VBR mode.
+// #define AGRESSIVE_VBR 1
+
// Bits Per MB at different Q (Multiplied by 512)
#define BPER_MB_NORMBITS 9
--
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