#include "vp9/common/vp9_quant_common.h"
#include "vp9/common/vp9_reconinter.h" // vp9_setup_dst_planes()
#include "vp9/common/vp9_systemdependent.h"
-
#include "vp9/encoder/vp9_aq_variance.h"
#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_rd.h"
#include "vp9/encoder/vp9_variance.h"
-#define OUTPUT_FPF 0
-
-#define IIFACTOR 12.5
-#define IIKFACTOR1 12.5
-#define IIKFACTOR2 15.0
-#define RMAX 512.0
-#define GF_RMAX 96.0
-#define ERR_DIVISOR 150.0
-#define MIN_DECAY_FACTOR 0.1
-#define SVC_FACTOR_PT_LOW 0.45
-#define FACTOR_PT_LOW 0.5
-#define FACTOR_PT_HIGH 0.9
-
-#define KF_MB_INTRA_MIN 150
-#define GF_MB_INTRA_MIN 100
+#define OUTPUT_FPF 0
+#define ARF_STATS_OUTPUT 0
+
+#define BOOST_FACTOR 12.5
+#define ERR_DIVISOR 100.0
+#define FACTOR_PT_LOW 0.5
+#define FACTOR_PT_HIGH 0.9
+#define FIRST_PASS_Q 10.0
+#define GF_MAX_BOOST 96.0
+#define INTRA_MODE_PENALTY 1024
+#define KF_MAX_BOOST 128.0
+#define MIN_DECAY_FACTOR 0.01
+#define MIN_GF_INTERVAL 4
+#define MIN_KF_BOOST 300
+#define NEW_MV_MODE_PENALTY 32
+#define SVC_FACTOR_PT_LOW 0.45
#define DOUBLE_DIVIDE_CHECK(x) ((x) < 0 ? (x) - 0.000001 : (x) + 0.000001)
-#define MIN_KF_BOOST 300
-#define MIN_GF_INTERVAL 4
-#define LONG_TERM_VBR_CORRECTION
+#if ARF_STATS_OUTPUT
+unsigned int arf_count = 0;
+#endif
static void swap_yv12(YV12_BUFFER_CONFIG *a, YV12_BUFFER_CONFIG *b) {
YV12_BUFFER_CONFIG temp = *a;
*b = temp;
}
-static int gfboost_qadjust(int qindex) {
- const double q = vp9_convert_qindex_to_q(qindex);
+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);
p->stats_in = position;
}
-static int lookup_next_frame_stats(const TWO_PASS *p,
- FIRSTPASS_STATS *next_frame) {
- if (p->stats_in >= p->stats_in_end)
- return EOF;
-
- *next_frame = *p->stats_in;
- return 1;
-}
-
-
// Read frame stats at an offset from the current position.
static const FIRSTPASS_STATS *read_frame_stats(const TWO_PASS *p, int offset) {
if ((offset >= 0 && p->stats_in + offset >= p->stats_in_end) ||
section->duration -= frame->duration;
}
-static void avg_stats(FIRSTPASS_STATS *section) {
- if (section->count < 1.0)
- return;
-
- section->intra_error /= section->count;
- section->coded_error /= section->count;
- section->sr_coded_error /= section->count;
- section->pcnt_inter /= section->count;
- section->pcnt_second_ref /= section->count;
- section->pcnt_neutral /= section->count;
- section->pcnt_motion /= section->count;
- section->MVr /= section->count;
- section->mvr_abs /= section->count;
- section->MVc /= section->count;
- section->mvc_abs /= section->count;
- section->MVrv /= section->count;
- section->MVcv /= section->count;
- section->mv_in_out_count /= section->count;
- section->duration /= section->count;
-}
// Calculate a modified Error used in distributing bits between easier and
// harder frames.
}
void vp9_end_first_pass(VP9_COMP *cpi) {
- if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+ if (is_two_pass_svc(cpi)) {
int i;
for (i = 0; i < cpi->svc.number_spatial_layers; ++i) {
output_stats(&cpi->svc.layer_context[i].twopass.total_stats,
MV tmp_mv = {0, 0};
MV ref_mv_full = {ref_mv->row >> 3, ref_mv->col >> 3};
int num00, tmp_err, n;
- const BLOCK_SIZE bsize = xd->mi[0]->mbmi.sb_type;
+ const BLOCK_SIZE bsize = xd->mi[0].src_mi->mbmi.sb_type;
vp9_variance_fn_ptr_t v_fn_ptr = cpi->fn_ptr[bsize];
- const int new_mv_mode_penalty = 256;
+ const int new_mv_mode_penalty = NEW_MV_MODE_PENALTY;
int step_param = 3;
int further_steps = (MAX_MVSEARCH_STEPS - 1) - step_param;
}
}
-static int find_fp_qindex() {
+static int find_fp_qindex(vpx_bit_depth_t bit_depth) {
int i;
for (i = 0; i < QINDEX_RANGE; ++i)
- if (vp9_convert_qindex_to_q(i) >= 30.0)
+ if (vp9_convert_qindex_to_q(i, bit_depth) >= FIRST_PASS_Q)
break;
if (i == QINDEX_RANGE)
cpi->rc.frames_to_key = INT_MAX;
}
-void vp9_first_pass(VP9_COMP *cpi) {
+void vp9_first_pass(VP9_COMP *cpi, const struct lookahead_entry *source) {
int mb_row, mb_col;
MACROBLOCK *const x = &cpi->mb;
VP9_COMMON *const cm = &cpi->common;
int mvcount = 0;
int intercount = 0;
int second_ref_count = 0;
- int intrapenalty = 256;
+ const int intrapenalty = INTRA_MODE_PENALTY;
int neutral_count = 0;
int new_mv_count = 0;
int sum_in_vectors = 0;
- uint32_t lastmv_as_int = 0;
+ MV lastmv = {0, 0};
TWO_PASS *twopass = &cpi->twopass;
const MV zero_mv = {0, 0};
const YV12_BUFFER_CONFIG *first_ref_buf = lst_yv12;
+ LAYER_CONTEXT *const lc = is_two_pass_svc(cpi) ?
+ &cpi->svc.layer_context[cpi->svc.spatial_layer_id] : NULL;
#if CONFIG_FP_MB_STATS
if (cpi->use_fp_mb_stats) {
vp9_clear_system_state();
set_first_pass_params(cpi);
- vp9_set_quantizer(cm, find_fp_qindex());
+ vp9_set_quantizer(cm, find_fp_qindex(cm->bit_depth));
- if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
- MV_REFERENCE_FRAME ref_frame = LAST_FRAME;
- const YV12_BUFFER_CONFIG *scaled_ref_buf = NULL;
- twopass = &cpi->svc.layer_context[cpi->svc.spatial_layer_id].twopass;
+ if (lc != NULL) {
+ twopass = &lc->twopass;
- if (cpi->common.current_video_frame == 0) {
- cpi->ref_frame_flags = 0;
+ cpi->lst_fb_idx = cpi->svc.spatial_layer_id;
+ cpi->ref_frame_flags = VP9_LAST_FLAG;
+
+ if (cpi->svc.number_spatial_layers + cpi->svc.spatial_layer_id <
+ REF_FRAMES) {
+ cpi->gld_fb_idx =
+ cpi->svc.number_spatial_layers + cpi->svc.spatial_layer_id;
+ cpi->ref_frame_flags |= VP9_GOLD_FLAG;
+ cpi->refresh_golden_frame = (lc->current_video_frame_in_layer == 0);
} else {
- LAYER_CONTEXT *lc = &cpi->svc.layer_context[cpi->svc.spatial_layer_id];
- if (lc->current_video_frame_in_layer == 0)
- cpi->ref_frame_flags = VP9_GOLD_FLAG;
- else
- cpi->ref_frame_flags = VP9_LAST_FLAG | VP9_GOLD_FLAG;
+ cpi->refresh_golden_frame = 0;
}
+ if (lc->current_video_frame_in_layer == 0)
+ cpi->ref_frame_flags = 0;
+
vp9_scale_references(cpi);
// Use either last frame or alt frame for motion search.
if (cpi->ref_frame_flags & VP9_LAST_FLAG) {
- scaled_ref_buf = vp9_get_scaled_ref_frame(cpi, LAST_FRAME);
- ref_frame = LAST_FRAME;
- } else if (cpi->ref_frame_flags & VP9_GOLD_FLAG) {
- scaled_ref_buf = vp9_get_scaled_ref_frame(cpi, GOLDEN_FRAME);
- ref_frame = GOLDEN_FRAME;
+ first_ref_buf = vp9_get_scaled_ref_frame(cpi, LAST_FRAME);
+ if (first_ref_buf == NULL)
+ first_ref_buf = get_ref_frame_buffer(cpi, LAST_FRAME);
}
- if (scaled_ref_buf != NULL)
- first_ref_buf = scaled_ref_buf;
+ if (cpi->ref_frame_flags & VP9_GOLD_FLAG) {
+ const int ref_idx =
+ cm->ref_frame_map[get_ref_frame_idx(cpi, GOLDEN_FRAME)];
+ const int scaled_idx = cpi->scaled_ref_idx[GOLDEN_FRAME - 1];
+
+ gld_yv12 = (scaled_idx != ref_idx) ? &cm->frame_bufs[scaled_idx].buf :
+ get_ref_frame_buffer(cpi, GOLDEN_FRAME);
+ } else {
+ gld_yv12 = NULL;
+ }
recon_y_stride = new_yv12->y_stride;
recon_uv_stride = new_yv12->uv_stride;
uv_mb_height = 16 >> (new_yv12->y_height > new_yv12->uv_height);
- // Disable golden frame for svc first pass for now.
- gld_yv12 = NULL;
- set_ref_ptrs(cm, xd, ref_frame, NONE);
+ set_ref_ptrs(cm, xd,
+ (cpi->ref_frame_flags & VP9_LAST_FLAG) ? LAST_FRAME: NONE,
+ (cpi->ref_frame_flags & VP9_GOLD_FLAG) ? GOLDEN_FRAME : NONE);
cpi->Source = vp9_scale_if_required(cm, cpi->un_scaled_source,
&cpi->scaled_source);
vp9_setup_pre_planes(xd, 0, first_ref_buf, 0, 0, NULL);
vp9_setup_dst_planes(xd->plane, new_yv12, 0, 0);
- xd->mi = cm->mi_grid_visible;
- xd->mi[0] = cm->mi;
+ xd->mi = cm->mi;
+ xd->mi[0].src_mi = &xd->mi[0];
vp9_frame_init_quantizer(cpi);
vp9_tile_init(&tile, cm, 0, 0);
for (mb_row = 0; mb_row < cm->mb_rows; ++mb_row) {
- int_mv best_ref_mv;
-
- best_ref_mv.as_int = 0;
+ MV best_ref_mv = {0, 0};
// Reset above block coeffs.
xd->up_available = (mb_row != 0);
const int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
double error_weight = 1.0;
const BLOCK_SIZE bsize = get_bsize(cm, mb_row, mb_col);
+#if CONFIG_FP_MB_STATS
+ const int mb_index = mb_row * cm->mb_cols + mb_col;
+#endif
vp9_clear_system_state();
xd->plane[1].dst.buf = new_yv12->u_buffer + recon_uvoffset;
xd->plane[2].dst.buf = new_yv12->v_buffer + recon_uvoffset;
xd->left_available = (mb_col != 0);
- xd->mi[0]->mbmi.sb_type = bsize;
- xd->mi[0]->mbmi.ref_frame[0] = INTRA_FRAME;
+ xd->mi[0].src_mi->mbmi.sb_type = bsize;
+ xd->mi[0].src_mi->mbmi.ref_frame[0] = INTRA_FRAME;
set_mi_row_col(xd, &tile,
mb_row << 1, num_8x8_blocks_high_lookup[bsize],
mb_col << 1, num_8x8_blocks_wide_lookup[bsize],
// Do intra 16x16 prediction.
x->skip_encode = 0;
- xd->mi[0]->mbmi.mode = DC_PRED;
- xd->mi[0]->mbmi.tx_size = use_dc_pred ?
+ xd->mi[0].src_mi->mbmi.mode = DC_PRED;
+ xd->mi[0].src_mi->mbmi.tx_size = use_dc_pred ?
(bsize >= BLOCK_16X16 ? TX_16X16 : TX_8X8) : TX_4X4;
vp9_encode_intra_block_plane(x, bsize, 0);
this_error = vp9_get_mb_ss(x->plane[0].src_diff);
#if CONFIG_FP_MB_STATS
if (cpi->use_fp_mb_stats) {
- // TODO(pengchong): store some related block statistics here
+ // initialization
+ cpi->twopass.frame_mb_stats_buf[mb_index] = 0;
}
#endif
x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + BORDER_MV_PIXELS_B16;
// Other than for the first frame do a motion search.
- if (cm->current_video_frame > 0) {
+ if ((lc == NULL && cm->current_video_frame > 0) ||
+ (lc != NULL && lc->current_video_frame_in_layer > 0)) {
int tmp_err, motion_error, raw_motion_error;
- int_mv mv, tmp_mv;
+ // Assume 0,0 motion with no mv overhead.
+ MV mv = {0, 0} , tmp_mv = {0, 0};
struct buf_2d unscaled_last_source_buf_2d;
xd->plane[0].pre[0].buf = first_ref_buf->y_buffer + recon_yoffset;
motion_error = get_prediction_error(bsize, &x->plane[0].src,
&xd->plane[0].pre[0]);
- // Assume 0,0 motion with no mv overhead.
- mv.as_int = tmp_mv.as_int = 0;
// Compute the motion error of the 0,0 motion using the last source
// frame as the reference. Skip the further motion search on
&unscaled_last_source_buf_2d);
// TODO(pengchong): Replace the hard-coded threshold
- if (raw_motion_error > 25 ||
- (cpi->use_svc && cpi->svc.number_temporal_layers == 1)) {
+ if (raw_motion_error > 25 || lc != NULL) {
// Test last reference frame using the previous best mv as the
// starting point (best reference) for the search.
- first_pass_motion_search(cpi, x, &best_ref_mv.as_mv, &mv.as_mv,
- &motion_error);
+ first_pass_motion_search(cpi, x, &best_ref_mv, &mv, &motion_error);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
vp9_clear_system_state();
motion_error = (int)(motion_error * error_weight);
// If the current best reference mv is not centered on 0,0 then do a
// 0,0 based search as well.
- if (best_ref_mv.as_int) {
+ if (!is_zero_mv(&best_ref_mv)) {
tmp_err = INT_MAX;
- first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv.as_mv, &tmp_err);
+ first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv, &tmp_err);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
vp9_clear_system_state();
tmp_err = (int)(tmp_err * error_weight);
if (tmp_err < motion_error) {
motion_error = tmp_err;
- mv.as_int = tmp_mv.as_int;
+ mv = tmp_mv;
}
}
// Search in an older reference frame.
- if (cm->current_video_frame > 1 && gld_yv12 != NULL) {
+ if (((lc == NULL && cm->current_video_frame > 1) ||
+ (lc != NULL && lc->current_video_frame_in_layer > 1))
+ && gld_yv12 != NULL) {
// Assume 0,0 motion with no mv overhead.
int gf_motion_error;
gf_motion_error = get_prediction_error(bsize, &x->plane[0].src,
&xd->plane[0].pre[0]);
- first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv.as_mv,
+ first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv,
&gf_motion_error);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
vp9_clear_system_state();
}
// Start by assuming that intra mode is best.
- best_ref_mv.as_int = 0;
+ best_ref_mv.row = 0;
+ best_ref_mv.col = 0;
+
+#if CONFIG_FP_MB_STATS
+ if (cpi->use_fp_mb_stats) {
+ // intra predication statistics
+ cpi->twopass.frame_mb_stats_buf[mb_index] = 0;
+ cpi->twopass.frame_mb_stats_buf[mb_index] |= FPMB_DCINTRA_MASK;
+ cpi->twopass.frame_mb_stats_buf[mb_index] |= FPMB_MOTION_ZERO_MASK;
+ if (this_error > FPMB_ERROR_LARGE_TH) {
+ cpi->twopass.frame_mb_stats_buf[mb_index] |= FPMB_ERROR_LARGE_MASK;
+ } else if (this_error < FPMB_ERROR_SMALL_TH) {
+ cpi->twopass.frame_mb_stats_buf[mb_index] |= FPMB_ERROR_SMALL_MASK;
+ }
+ }
+#endif
if (motion_error <= this_error) {
// Keep a count of cases where the inter and intra were very close
this_error < 2 * intrapenalty)
++neutral_count;
- mv.as_mv.row *= 8;
- mv.as_mv.col *= 8;
+ mv.row *= 8;
+ mv.col *= 8;
this_error = motion_error;
- xd->mi[0]->mbmi.mode = NEWMV;
- xd->mi[0]->mbmi.mv[0] = mv;
- xd->mi[0]->mbmi.tx_size = TX_4X4;
- xd->mi[0]->mbmi.ref_frame[0] = LAST_FRAME;
- xd->mi[0]->mbmi.ref_frame[1] = NONE;
+ xd->mi[0].src_mi->mbmi.mode = NEWMV;
+ xd->mi[0].src_mi->mbmi.mv[0].as_mv = mv;
+ xd->mi[0].src_mi->mbmi.tx_size = TX_4X4;
+ xd->mi[0].src_mi->mbmi.ref_frame[0] = LAST_FRAME;
+ xd->mi[0].src_mi->mbmi.ref_frame[1] = NONE;
vp9_build_inter_predictors_sby(xd, mb_row << 1, mb_col << 1, bsize);
vp9_encode_sby_pass1(x, bsize);
- sum_mvr += mv.as_mv.row;
- sum_mvr_abs += abs(mv.as_mv.row);
- sum_mvc += mv.as_mv.col;
- sum_mvc_abs += abs(mv.as_mv.col);
- sum_mvrs += mv.as_mv.row * mv.as_mv.row;
- sum_mvcs += mv.as_mv.col * mv.as_mv.col;
+ sum_mvr += mv.row;
+ sum_mvr_abs += abs(mv.row);
+ sum_mvc += mv.col;
+ sum_mvc_abs += abs(mv.col);
+ sum_mvrs += mv.row * mv.row;
+ sum_mvcs += mv.col * mv.col;
++intercount;
- best_ref_mv.as_int = mv.as_int;
+ best_ref_mv = mv;
#if CONFIG_FP_MB_STATS
if (cpi->use_fp_mb_stats) {
- // TODO(pengchong): save some related block statistics here
+ // inter predication statistics
+ cpi->twopass.frame_mb_stats_buf[mb_index] = 0;
+ cpi->twopass.frame_mb_stats_buf[mb_index] &= ~FPMB_DCINTRA_MASK;
+ cpi->twopass.frame_mb_stats_buf[mb_index] |= FPMB_MOTION_ZERO_MASK;
+ if (this_error > FPMB_ERROR_LARGE_TH) {
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_ERROR_LARGE_MASK;
+ } else if (this_error < FPMB_ERROR_SMALL_TH) {
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_ERROR_SMALL_MASK;
+ }
}
#endif
- if (mv.as_int) {
+ if (!is_zero_mv(&mv)) {
++mvcount;
+#if CONFIG_FP_MB_STATS
+ if (cpi->use_fp_mb_stats) {
+ cpi->twopass.frame_mb_stats_buf[mb_index] &=
+ ~FPMB_MOTION_ZERO_MASK;
+ // check estimated motion direction
+ if (mv.as_mv.col > 0 && mv.as_mv.col >= abs(mv.as_mv.row)) {
+ // right direction
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_MOTION_RIGHT_MASK;
+ } else if (mv.as_mv.row < 0 &&
+ abs(mv.as_mv.row) >= abs(mv.as_mv.col)) {
+ // up direction
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_MOTION_UP_MASK;
+ } else if (mv.as_mv.col < 0 &&
+ abs(mv.as_mv.col) >= abs(mv.as_mv.row)) {
+ // left direction
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_MOTION_LEFT_MASK;
+ } else {
+ // down direction
+ cpi->twopass.frame_mb_stats_buf[mb_index] |=
+ FPMB_MOTION_DOWN_MASK;
+ }
+ }
+#endif
+
// Non-zero vector, was it different from the last non zero vector?
- if (mv.as_int != lastmv_as_int)
+ if (!is_equal_mv(&mv, &lastmv))
++new_mv_count;
- lastmv_as_int = mv.as_int;
+ lastmv = mv;
// Does the row vector point inwards or outwards?
if (mb_row < cm->mb_rows / 2) {
- if (mv.as_mv.row > 0)
+ if (mv.row > 0)
--sum_in_vectors;
- else if (mv.as_mv.row < 0)
+ else if (mv.row < 0)
++sum_in_vectors;
} else if (mb_row > cm->mb_rows / 2) {
- if (mv.as_mv.row > 0)
+ if (mv.row > 0)
++sum_in_vectors;
- else if (mv.as_mv.row < 0)
+ else if (mv.row < 0)
--sum_in_vectors;
}
// Does the col vector point inwards or outwards?
if (mb_col < cm->mb_cols / 2) {
- if (mv.as_mv.col > 0)
+ if (mv.col > 0)
--sum_in_vectors;
- else if (mv.as_mv.col < 0)
+ else if (mv.col < 0)
++sum_in_vectors;
} else if (mb_col > cm->mb_cols / 2) {
- if (mv.as_mv.col > 0)
+ if (mv.col > 0)
++sum_in_vectors;
- else if (mv.as_mv.col < 0)
+ else if (mv.col < 0)
--sum_in_vectors;
}
}
vp9_clear_system_state();
{
FIRSTPASS_STATS fps;
+ // The minimum error here insures some bit alocation to frames even
+ // in static regions. The allocation per MB declines for larger formats
+ // where the typical "real" energy per MB also falls.
+ // Initial estimate here uses sqrt(mbs) to define the min_err, where the
+ // number of mbs is propotional to image area.
+ const double min_err = 200 * sqrt(cm->MBs);
fps.frame = cm->current_video_frame;
fps.spatial_layer_id = cpi->svc.spatial_layer_id;
- fps.intra_error = (double)(intra_error >> 8);
- fps.coded_error = (double)(coded_error >> 8);
- fps.sr_coded_error = (double)(sr_coded_error >> 8);
+ fps.coded_error = (double)(coded_error >> 8) + min_err;
+ fps.sr_coded_error = (double)(sr_coded_error >> 8) + min_err;
+ fps.intra_error = (double)(intra_error >> 8) + min_err;
fps.count = 1.0;
fps.pcnt_inter = (double)intercount / cm->MBs;
fps.pcnt_second_ref = (double)second_ref_count / cm->MBs;
// TODO(paulwilkins): Handle the case when duration is set to 0, or
// something less than the full time between subsequent values of
// cpi->source_time_stamp.
- fps.duration = (double)(cpi->source->ts_end - cpi->source->ts_start);
+ fps.duration = (double)(source->ts_end - source->ts_start);
// Don't want to do output stats with a stack variable!
twopass->this_frame_stats = fps;
vp9_extend_frame_borders(new_yv12);
- if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+ if (lc != NULL) {
vp9_update_reference_frames(cpi);
} else {
// Swap frame pointers so last frame refers to the frame we just compressed.
// Special case for the first frame. Copy into the GF buffer as a second
// reference.
- if (cm->current_video_frame == 0 && gld_yv12 != NULL) {
+ if (cm->current_video_frame == 0 && gld_yv12 != NULL && lc == NULL) {
vp8_yv12_copy_frame(lst_yv12, gld_yv12);
}
++cm->current_video_frame;
if (cpi->use_svc)
- vp9_inc_frame_in_layer(&cpi->svc);
+ vp9_inc_frame_in_layer(cpi);
}
static double calc_correction_factor(double err_per_mb,
double err_divisor,
double pt_low,
double pt_high,
- int q) {
+ int q,
+ vpx_bit_depth_t bit_depth) {
const double error_term = err_per_mb / err_divisor;
// Adjustment based on actual quantizer to power term.
- const double power_term = MIN(vp9_convert_qindex_to_q(q) * 0.0125 + pt_low,
- pt_high);
+ const double power_term =
+ MIN(vp9_convert_qindex_to_q(q, bit_depth) * 0.0125 + pt_low, pt_high);
// Calculate correction factor.
if (power_term < 1.0)
const double err_per_mb = section_err / num_mbs;
const double speed_term = 1.0 + 0.04 * oxcf->speed;
const int target_norm_bits_per_mb = ((uint64_t)section_target_bandwidth <<
- BPER_MB_NORMBITS) / num_mbs;
+ BPER_MB_NORMBITS) / num_mbs;
int q;
int is_svc_upper_layer = 0;
- if (cpi->use_svc && cpi->svc.number_temporal_layers == 1 &&
- cpi->svc.spatial_layer_id > 0) {
+ if (is_two_pass_svc(cpi) && cpi->svc.spatial_layer_id > 0)
is_svc_upper_layer = 1;
- }
// Try and pick a max Q that will be high enough to encode the
// content at the given rate.
const double factor =
calc_correction_factor(err_per_mb, ERR_DIVISOR,
is_svc_upper_layer ? SVC_FACTOR_PT_LOW :
- FACTOR_PT_LOW, FACTOR_PT_HIGH, q);
+ FACTOR_PT_LOW, FACTOR_PT_HIGH, q,
+ cpi->common.bit_depth);
const int bits_per_mb = vp9_rc_bits_per_mb(INTER_FRAME, q,
- factor * speed_term);
+ factor * speed_term,
+ cpi->common.bit_depth);
if (bits_per_mb <= target_norm_bits_per_mb)
break;
}
void vp9_init_second_pass(VP9_COMP *cpi) {
SVC *const svc = &cpi->svc;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
- const int is_spatial_svc = (svc->number_spatial_layers > 1) &&
- (svc->number_temporal_layers == 1);
- TWO_PASS *const twopass = is_spatial_svc ?
+ const int is_two_pass_svc = (svc->number_spatial_layers > 1) ||
+ (svc->number_temporal_layers > 1);
+ TWO_PASS *const twopass = is_two_pass_svc ?
&svc->layer_context[svc->spatial_layer_id].twopass : &cpi->twopass;
double frame_rate;
FIRSTPASS_STATS *stats;
// It is calculated based on the actual durations of all frames from the
// first pass.
- if (is_spatial_svc) {
+ if (is_two_pass_svc) {
vp9_update_spatial_layer_framerate(cpi, frame_rate);
twopass->bits_left = (int64_t)(stats->duration *
svc->layer_context[svc->spatial_layer_id].target_bandwidth /
10000000.0);
}
- // Calculate a minimum intra value to be used in determining the IIratio
- // scores used in the second pass. We have this minimum to make sure
- // that clips that are static but "low complexity" in the intra domain
- // are still boosted appropriately for KF/GF/ARF.
- if (!is_spatial_svc) {
- // We don't know the number of MBs for each layer at this point.
- // So we will do it later.
- twopass->kf_intra_err_min = KF_MB_INTRA_MIN * cpi->common.MBs;
- twopass->gf_intra_err_min = GF_MB_INTRA_MIN * cpi->common.MBs;
- }
-
// This variable monitors how far behind the second ref update is lagging.
twopass->sr_update_lag = 1;
// Reset the vbr bits off target counter
cpi->rc.vbr_bits_off_target = 0;
+
+ // Static sequence monitor variables.
+ twopass->kf_zeromotion_pct = 100;
+ twopass->last_kfgroup_zeromotion_pct = 100;
+}
+
+#define SR_DIFF_PART 0.0015
+#define MOTION_AMP_PART 0.003
+#define INTRA_PART 0.005
+#define DEFAULT_DECAY_LIMIT 0.75
+#define LOW_SR_DIFF_TRHESH 0.1
+#define SR_DIFF_MAX 128.0
+
+static double get_sr_decay_rate(const VP9_COMMON *cm,
+ const FIRSTPASS_STATS *frame) {
+ double sr_diff = (frame->sr_coded_error - frame->coded_error) / cm->MBs;
+ double sr_decay = 1.0;
+ const double motion_amplitude_factor =
+ frame->pcnt_motion * ((frame->mvc_abs + frame->mvr_abs) / 2);
+ const double pcnt_intra = 100 * (1.0 - frame->pcnt_inter);
+
+ if ((sr_diff > LOW_SR_DIFF_TRHESH)) {
+ sr_diff = MIN(sr_diff, SR_DIFF_MAX);
+ sr_decay = 1.0 - (SR_DIFF_PART * sr_diff) -
+ (MOTION_AMP_PART * motion_amplitude_factor) -
+ (INTRA_PART * pcnt_intra);
+ }
+ return MAX(sr_decay, MIN(DEFAULT_DECAY_LIMIT, frame->pcnt_inter));
}
// This function gives an estimate of how badly we believe the prediction
// quality is decaying from frame to frame.
+static double get_zero_motion_factor(const VP9_COMMON *cm,
+ const FIRSTPASS_STATS *frame) {
+ const double zero_motion_pct = frame->pcnt_inter -
+ frame->pcnt_motion;
+ double sr_decay = get_sr_decay_rate(cm, frame);
+ return MIN(sr_decay, zero_motion_pct);
+}
+
+#define ZM_POWER_FACTOR 0.75
+
static double get_prediction_decay_rate(const VP9_COMMON *cm,
const FIRSTPASS_STATS *next_frame) {
- // Look at the observed drop in prediction quality between the last frame
- // and the GF buffer (which contains an older frame).
- const double mb_sr_err_diff = (next_frame->sr_coded_error -
- next_frame->coded_error) / cm->MBs;
- const double second_ref_decay = mb_sr_err_diff <= 512.0
- ? fclamp(pow(1.0 - (mb_sr_err_diff / 512.0), 0.5), 0.85, 1.0)
- : 0.85;
-
- return MIN(second_ref_decay, next_frame->pcnt_inter);
+ const double sr_decay_rate = get_sr_decay_rate(cm, next_frame);
+ const double zero_motion_factor =
+ (0.95 * pow((next_frame->pcnt_inter - next_frame->pcnt_motion),
+ ZM_POWER_FACTOR));
+
+ return MAX(zero_motion_factor,
+ (sr_decay_rate + ((1.0 - sr_decay_rate) * zero_motion_factor)));
}
// Function to test for a condition where a complex transition is followed
// by a static section. For example in slide shows where there is a fade
// between slides. This is to help with more optimal kf and gf positioning.
-static int detect_transition_to_still(TWO_PASS *twopass,
+static int detect_transition_to_still(const TWO_PASS *twopass,
int frame_interval, int still_interval,
double loop_decay_rate,
double last_decay_rate) {
- int trans_to_still = 0;
-
// Break clause to detect very still sections after motion
// For example a static image after a fade or other transition
// instead of a clean scene cut.
loop_decay_rate >= 0.999 &&
last_decay_rate < 0.9) {
int j;
- const FIRSTPASS_STATS *position = twopass->stats_in;
- FIRSTPASS_STATS tmp_next_frame;
// Look ahead a few frames to see if static condition persists...
for (j = 0; j < still_interval; ++j) {
- if (EOF == input_stats(twopass, &tmp_next_frame))
+ const FIRSTPASS_STATS *stats = &twopass->stats_in[j];
+ if (stats >= twopass->stats_in_end)
break;
- if (tmp_next_frame.pcnt_inter - tmp_next_frame.pcnt_motion < 0.999)
+ if (stats->pcnt_inter - stats->pcnt_motion < 0.999)
break;
}
- reset_fpf_position(twopass, position);
-
// Only if it does do we signal a transition to still.
- if (j == still_interval)
- trans_to_still = 1;
+ return j == still_interval;
}
- return trans_to_still;
+ return 0;
}
// This function detects a flash through the high relative pcnt_second_ref
}
}
-// Calculate a baseline boost number for the current frame.
-static double calc_frame_boost(const TWO_PASS *twopass,
+#define BASELINE_ERR_PER_MB 1000.0
+static double calc_frame_boost(VP9_COMP *cpi,
const FIRSTPASS_STATS *this_frame,
- double this_frame_mv_in_out) {
+ double this_frame_mv_in_out,
+ double max_boost) {
double frame_boost;
- // Underlying boost factor is based on inter intra error ratio.
- if (this_frame->intra_error > twopass->gf_intra_err_min)
- frame_boost = (IIFACTOR * this_frame->intra_error /
- DOUBLE_DIVIDE_CHECK(this_frame->coded_error));
- else
- frame_boost = (IIFACTOR * twopass->gf_intra_err_min /
- DOUBLE_DIVIDE_CHECK(this_frame->coded_error));
+ // 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;
// 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
else
frame_boost += frame_boost * (this_frame_mv_in_out / 2.0);
- return MIN(frame_boost, GF_RMAX);
+ return MIN(frame_boost, max_boost);
}
static int calc_arf_boost(VP9_COMP *cpi, int offset,
? MIN_DECAY_FACTOR : decay_accumulator;
}
- boost_score += decay_accumulator * calc_frame_boost(twopass, this_frame,
- this_frame_mv_in_out);
+ boost_score += decay_accumulator * calc_frame_boost(cpi, this_frame,
+ this_frame_mv_in_out,
+ GF_MAX_BOOST);
}
*f_boost = (int)boost_score;
? MIN_DECAY_FACTOR : decay_accumulator;
}
- boost_score += decay_accumulator * calc_frame_boost(twopass, this_frame,
- this_frame_mv_in_out);
+ boost_score += decay_accumulator * calc_frame_boost(cpi, this_frame,
+ this_frame_mv_in_out,
+ GF_MAX_BOOST);
}
*b_boost = (int)boost_score;
double group_error, int gf_arf_bits) {
RATE_CONTROL *const rc = &cpi->rc;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
- TWO_PASS *twopass = &cpi->twopass;
+ TWO_PASS *const twopass = &cpi->twopass;
+ GF_GROUP *const gf_group = &twopass->gf_group;
FIRSTPASS_STATS frame_stats;
int i;
int frame_index = 1;
int mid_boost_bits = 0;
int mid_frame_idx;
unsigned char arf_buffer_indices[MAX_ACTIVE_ARFS];
+ int alt_frame_index = frame_index;
+ int has_temporal_layers = is_two_pass_svc(cpi) &&
+ cpi->svc.number_temporal_layers > 1;
+
+ // Only encode alt reference frame in temporal base layer.
+ if (has_temporal_layers)
+ alt_frame_index = cpi->svc.number_temporal_layers;
key_frame = cpi->common.frame_type == KEY_FRAME ||
vp9_is_upper_layer_key_frame(cpi);
// is also the golden frame.
if (!key_frame) {
if (rc->source_alt_ref_active) {
- twopass->gf_group.update_type[0] = OVERLAY_UPDATE;
- twopass->gf_group.rf_level[0] = INTER_NORMAL;
- twopass->gf_group.bit_allocation[0] = 0;
- twopass->gf_group.arf_update_idx[0] = arf_buffer_indices[0];
- twopass->gf_group.arf_ref_idx[0] = arf_buffer_indices[0];
+ gf_group->update_type[0] = OVERLAY_UPDATE;
+ gf_group->rf_level[0] = INTER_NORMAL;
+ gf_group->bit_allocation[0] = 0;
+ gf_group->arf_update_idx[0] = arf_buffer_indices[0];
+ gf_group->arf_ref_idx[0] = arf_buffer_indices[0];
} else {
- twopass->gf_group.update_type[0] = GF_UPDATE;
- twopass->gf_group.rf_level[0] = GF_ARF_STD;
- twopass->gf_group.bit_allocation[0] = gf_arf_bits;
- twopass->gf_group.arf_update_idx[0] = arf_buffer_indices[0];
- twopass->gf_group.arf_ref_idx[0] = arf_buffer_indices[0];
+ gf_group->update_type[0] = GF_UPDATE;
+ gf_group->rf_level[0] = GF_ARF_STD;
+ gf_group->bit_allocation[0] = gf_arf_bits;
+ gf_group->arf_update_idx[0] = arf_buffer_indices[0];
+ gf_group->arf_ref_idx[0] = arf_buffer_indices[0];
}
// Step over the golden frame / overlay frame
// Store the bits to spend on the ARF if there is one.
if (rc->source_alt_ref_pending) {
- twopass->gf_group.update_type[frame_index] = ARF_UPDATE;
- twopass->gf_group.rf_level[frame_index] = GF_ARF_STD;
- twopass->gf_group.bit_allocation[frame_index] = gf_arf_bits;
- twopass->gf_group.arf_src_offset[frame_index] =
- (unsigned char)(rc->baseline_gf_interval - 1);
- twopass->gf_group.arf_update_idx[frame_index] = arf_buffer_indices[0];
- twopass->gf_group.arf_ref_idx[frame_index] =
+ gf_group->update_type[alt_frame_index] = ARF_UPDATE;
+ gf_group->rf_level[alt_frame_index] = GF_ARF_STD;
+ gf_group->bit_allocation[alt_frame_index] = gf_arf_bits;
+
+ if (has_temporal_layers)
+ gf_group->arf_src_offset[alt_frame_index] =
+ (unsigned char)(rc->baseline_gf_interval -
+ cpi->svc.number_temporal_layers);
+ else
+ gf_group->arf_src_offset[alt_frame_index] =
+ (unsigned char)(rc->baseline_gf_interval - 1);
+
+ gf_group->arf_update_idx[alt_frame_index] = arf_buffer_indices[0];
+ gf_group->arf_ref_idx[alt_frame_index] =
arf_buffer_indices[cpi->multi_arf_last_grp_enabled &&
rc->source_alt_ref_active];
- ++frame_index;
+ if (!has_temporal_layers)
+ ++frame_index;
if (cpi->multi_arf_enabled) {
// Set aside a slot for a level 1 arf.
- twopass->gf_group.update_type[frame_index] = ARF_UPDATE;
- twopass->gf_group.rf_level[frame_index] = GF_ARF_LOW;
- twopass->gf_group.arf_src_offset[frame_index] =
+ gf_group->update_type[frame_index] = ARF_UPDATE;
+ gf_group->rf_level[frame_index] = GF_ARF_LOW;
+ gf_group->arf_src_offset[frame_index] =
(unsigned char)((rc->baseline_gf_interval >> 1) - 1);
- twopass->gf_group.arf_update_idx[frame_index] = arf_buffer_indices[1];
- twopass->gf_group.arf_ref_idx[frame_index] = arf_buffer_indices[0];
+ gf_group->arf_update_idx[frame_index] = arf_buffer_indices[1];
+ gf_group->arf_ref_idx[frame_index] = arf_buffer_indices[0];
++frame_index;
}
}
if (EOF == input_stats(twopass, &frame_stats))
break;
+ if (has_temporal_layers && frame_index == alt_frame_index) {
+ ++frame_index;
+ }
+
modified_err = calculate_modified_err(twopass, oxcf, &frame_stats);
if (group_error > 0)
if (frame_index <= mid_frame_idx)
arf_idx = 1;
}
- twopass->gf_group.arf_update_idx[frame_index] = arf_buffer_indices[arf_idx];
- twopass->gf_group.arf_ref_idx[frame_index] = arf_buffer_indices[arf_idx];
+ gf_group->arf_update_idx[frame_index] = arf_buffer_indices[arf_idx];
+ gf_group->arf_ref_idx[frame_index] = arf_buffer_indices[arf_idx];
target_frame_size = clamp(target_frame_size, 0,
MIN(max_bits, (int)total_group_bits));
- twopass->gf_group.update_type[frame_index] = LF_UPDATE;
- twopass->gf_group.rf_level[frame_index] = INTER_NORMAL;
+ gf_group->update_type[frame_index] = LF_UPDATE;
+ gf_group->rf_level[frame_index] = INTER_NORMAL;
- twopass->gf_group.bit_allocation[frame_index] = target_frame_size;
+ gf_group->bit_allocation[frame_index] = target_frame_size;
++frame_index;
}
// We need to configure the frame at the end of the sequence + 1 that will be
// the start frame for the next group. Otherwise prior to the call to
// vp9_rc_get_second_pass_params() the data will be undefined.
- twopass->gf_group.arf_update_idx[frame_index] = arf_buffer_indices[0];
- twopass->gf_group.arf_ref_idx[frame_index] = arf_buffer_indices[0];
+ gf_group->arf_update_idx[frame_index] = arf_buffer_indices[0];
+ gf_group->arf_ref_idx[frame_index] = arf_buffer_indices[0];
if (rc->source_alt_ref_pending) {
- twopass->gf_group.update_type[frame_index] = OVERLAY_UPDATE;
- twopass->gf_group.rf_level[frame_index] = INTER_NORMAL;
+ gf_group->update_type[frame_index] = OVERLAY_UPDATE;
+ gf_group->rf_level[frame_index] = INTER_NORMAL;
// Final setup for second arf and its overlay.
if (cpi->multi_arf_enabled) {
- twopass->gf_group.bit_allocation[2] =
- twopass->gf_group.bit_allocation[mid_frame_idx] + mid_boost_bits;
- twopass->gf_group.update_type[mid_frame_idx] = OVERLAY_UPDATE;
- twopass->gf_group.bit_allocation[mid_frame_idx] = 0;
+ gf_group->bit_allocation[2] =
+ gf_group->bit_allocation[mid_frame_idx] + mid_boost_bits;
+ gf_group->update_type[mid_frame_idx] = OVERLAY_UPDATE;
+ gf_group->bit_allocation[mid_frame_idx] = 0;
}
} else {
- twopass->gf_group.update_type[frame_index] = GF_UPDATE;
- twopass->gf_group.rf_level[frame_index] = GF_ARF_STD;
+ gf_group->update_type[frame_index] = GF_UPDATE;
+ gf_group->rf_level[frame_index] = GF_ARF_STD;
}
// Note whether multi-arf was enabled this group for next time.
vp9_clear_system_state();
vp9_zero(next_frame);
- gf_group_bits = 0;
-
// Load stats for the current frame.
mod_frame_err = calculate_modified_err(twopass, oxcf, this_frame);
gf_group_err -= gf_first_frame_err;
// Motion breakout threshold for loop below depends on image size.
- mv_ratio_accumulator_thresh = (cpi->common.width + cpi->common.height) / 10.0;
+ mv_ratio_accumulator_thresh = (cpi->common.width + cpi->common.height) / 4.0;
// Work out a maximum interval for the GF group.
// If the image appears almost completely static we can extend beyond this.
// At high Q when there are few bits to spare we are better with a longer
// interval to spread the cost of the GF.
active_max_gf_interval =
- 12 + ((int)vp9_convert_qindex_to_q(rc->last_q[INTER_FRAME]) >> 5);
+ 12 + ((int)vp9_convert_qindex_to_q(rc->last_q[INTER_FRAME],
+ cpi->common.bit_depth) >> 5);
if (active_max_gf_interval > rc->max_gf_interval)
active_max_gf_interval = rc->max_gf_interval;
if (!flash_detected) {
last_loop_decay_rate = loop_decay_rate;
loop_decay_rate = get_prediction_decay_rate(&cpi->common, &next_frame);
+
decay_accumulator = decay_accumulator * loop_decay_rate;
// Monitor for static sections.
- if ((next_frame.pcnt_inter - next_frame.pcnt_motion) <
- zero_motion_accumulator) {
- zero_motion_accumulator = next_frame.pcnt_inter -
- next_frame.pcnt_motion;
- }
+ zero_motion_accumulator =
+ MIN(zero_motion_accumulator,
+ get_zero_motion_factor(&cpi->common, &next_frame));
// Break clause to detect very still sections after motion. For example,
// a static image after a fade or other transition.
}
// Calculate a boost number for this frame.
- boost_score += decay_accumulator * calc_frame_boost(twopass, &next_frame,
- this_frame_mv_in_out);
+ boost_score += decay_accumulator * calc_frame_boost(cpi, &next_frame,
+ this_frame_mv_in_out,
+ GF_MAX_BOOST);
// Break out conditions.
if (
(
// Don't break out with a very short interval.
(i > MIN_GF_INTERVAL) &&
- ((boost_score > 125.0) || (next_frame.pcnt_inter < 0.75)) &&
(!flash_detected) &&
((mv_ratio_accumulator > mv_ratio_accumulator_thresh) ||
(abs_mv_in_out_accumulator > 3.0) ||
(mv_in_out_accumulator < -2.0) ||
- ((boost_score - old_boost_score) < IIFACTOR)))) {
+ ((boost_score - old_boost_score) < BOOST_FACTOR)))) {
boost_score = old_boost_score;
break;
}
*this_frame = next_frame;
-
old_boost_score = boost_score;
}
twopass->gf_zeromotion_pct = (int)(zero_motion_accumulator * 1000.0);
- // Don't allow a gf too near the next kf.
- if ((rc->frames_to_key - i) < MIN_GF_INTERVAL) {
- while (i < (rc->frames_to_key + !rc->next_key_frame_forced)) {
- ++i;
-
- if (EOF == input_stats(twopass, this_frame))
- break;
-
- if (i < rc->frames_to_key) {
- mod_frame_err = calculate_modified_err(twopass, oxcf, this_frame);
- gf_group_err += mod_frame_err;
- }
- }
- }
-
// Set the interval until the next gf.
if (cpi->common.frame_type == KEY_FRAME || rc->source_alt_ref_active)
rc->baseline_gf_interval = i - 1;
else
rc->baseline_gf_interval = i;
+ // Only encode alt reference frame in temporal base layer. So
+ // baseline_gf_interval should be multiple of a temporal layer group
+ // (typically the frame distance between two base layer frames)
+ if (is_two_pass_svc(cpi) && cpi->svc.number_temporal_layers > 1) {
+ int count = (1 << (cpi->svc.number_temporal_layers - 1)) - 1;
+ int new_gf_interval = (rc->baseline_gf_interval + count) & (~count);
+ int j;
+ for (j = 0; j < new_gf_interval - rc->baseline_gf_interval; ++j) {
+ if (EOF == input_stats(twopass, this_frame))
+ break;
+ gf_group_err += calculate_modified_err(twopass, oxcf, this_frame);
+ }
+ rc->baseline_gf_interval = new_gf_interval;
+ }
+
rc->frames_till_gf_update_due = rc->baseline_gf_interval;
// Should we use the alternate reference frame.
if (allow_alt_ref &&
(i < cpi->oxcf.lag_in_frames) &&
- (i >= MIN_GF_INTERVAL) &&
- // For real scene cuts (not forced kfs) don't allow arf very near kf.
- (rc->next_key_frame_forced ||
- (i <= (rc->frames_to_key - MIN_GF_INTERVAL)))) {
+ (i >= MIN_GF_INTERVAL)) {
// Calculate the boost for alt ref.
rc->gfu_boost = calc_arf_boost(cpi, 0, (i - 1), (i - 1), &f_boost,
&b_boost);
(cpi->multi_arf_allowed && (rc->baseline_gf_interval >= 6) &&
(zero_motion_accumulator < 0.995)) ? 1 : 0;
} else {
- rc->gfu_boost = (int)boost_score;
+ rc->gfu_boost = MAX((int)boost_score, 125);
rc->source_alt_ref_pending = 0;
}
// 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)) / 100;
+ 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, 125, (rc->baseline_gf_interval + 1) * 200);
}
}
+// TODO(PGW) Re-examine the use of II ration in this code in the light of#
+// changes elsewhere
+#define KF_II_MAX 128.0
static int test_candidate_kf(TWO_PASS *twopass,
const FIRSTPASS_STATS *last_frame,
const FIRSTPASS_STATS *this_frame,
// Examine how well the key frame predicts subsequent frames.
for (i = 0; i < 16; ++i) {
- double next_iiratio = (IIKFACTOR1 * local_next_frame.intra_error /
+ double next_iiratio = (BOOST_FACTOR * local_next_frame.intra_error /
DOUBLE_DIVIDE_CHECK(local_next_frame.coded_error));
- if (next_iiratio > RMAX)
- next_iiratio = RMAX;
+ if (next_iiratio > KF_II_MAX)
+ next_iiratio = KF_II_MAX;
// Cumulative effect of decay in prediction quality.
if (local_next_frame.pcnt_inter > 0.85)
int i, j;
RATE_CONTROL *const rc = &cpi->rc;
TWO_PASS *const twopass = &cpi->twopass;
+ GF_GROUP *const gf_group = &twopass->gf_group;
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
const FIRSTPASS_STATS first_frame = *this_frame;
const FIRSTPASS_STATS *const start_position = twopass->stats_in;
FIRSTPASS_STATS next_frame;
FIRSTPASS_STATS last_frame;
int kf_bits = 0;
+ int loop_decay_counter = 0;
double decay_accumulator = 1.0;
+ double av_decay_accumulator = 0.0;
double zero_motion_accumulator = 1.0;
double boost_score = 0.0;
double kf_mod_err = 0.0;
cpi->common.frame_type = KEY_FRAME;
// Reset the GF group data structures.
- vp9_zero(twopass->gf_group);
+ vp9_zero(*gf_group);
// Is this a forced key frame by interval.
rc->this_key_frame_forced = rc->next_key_frame_forced;
input_stats(twopass, this_frame);
// Provided that we are not at the end of the file...
- if (cpi->oxcf.auto_key &&
- lookup_next_frame_stats(twopass, &next_frame) != EOF) {
+ if (cpi->oxcf.auto_key && twopass->stats_in < twopass->stats_in_end) {
double loop_decay_rate;
// Check for a scene cut.
- if (test_candidate_kf(twopass, &last_frame, this_frame, &next_frame))
+ if (test_candidate_kf(twopass, &last_frame, this_frame,
+ twopass->stats_in))
break;
// How fast is the prediction quality decaying?
- loop_decay_rate = get_prediction_decay_rate(&cpi->common, &next_frame);
+ loop_decay_rate = get_prediction_decay_rate(&cpi->common,
+ twopass->stats_in);
// We want to know something about the recent past... rather than
// as used elsewhere where we are concerned with decay in prediction
rc->next_key_frame_forced = 0;
}
+ if (is_two_pass_svc(cpi) && cpi->svc.number_temporal_layers > 1) {
+ int count = (1 << (cpi->svc.number_temporal_layers - 1)) - 1;
+ int new_frame_to_key = (rc->frames_to_key + count) & (~count);
+ int j;
+ for (j = 0; j < new_frame_to_key - rc->frames_to_key; ++j) {
+ if (EOF == input_stats(twopass, this_frame))
+ break;
+ kf_group_err += calculate_modified_err(twopass, oxcf, this_frame);
+ }
+ rc->frames_to_key = new_frame_to_key;
+ }
+
// Special case for the last key frame of the file.
if (twopass->stats_in >= twopass->stats_in_end) {
// Accumulate kf group error.
// Reset the first pass file position.
reset_fpf_position(twopass, start_position);
- // Scan through the kf group collating various stats used to deteermine
+ // Scan through the kf group collating various stats used to determine
// how many bits to spend on it.
decay_accumulator = 1.0;
boost_score = 0.0;
- for (i = 0; i < rc->frames_to_key; ++i) {
+ for (i = 0; i < (rc->frames_to_key - 1); ++i) {
if (EOF == input_stats(twopass, &next_frame))
break;
// Monitor for static sections.
- if ((next_frame.pcnt_inter - next_frame.pcnt_motion) <
- zero_motion_accumulator) {
- zero_motion_accumulator = (next_frame.pcnt_inter -
- next_frame.pcnt_motion);
- }
+ zero_motion_accumulator =
+ MIN(zero_motion_accumulator,
+ get_zero_motion_factor(&cpi->common, &next_frame));
- // For the first few frames collect data to decide kf boost.
- if (i <= (rc->max_gf_interval * 2)) {
- double r;
- if (next_frame.intra_error > twopass->kf_intra_err_min)
- r = (IIKFACTOR2 * next_frame.intra_error /
- DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
- else
- r = (IIKFACTOR2 * twopass->kf_intra_err_min /
- DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
-
- if (r > RMAX)
- r = RMAX;
+ // Not all frames in the group are necessarily used in calculating boost.
+ if ((i <= rc->max_gf_interval) ||
+ ((i <= (rc->max_gf_interval * 4)) && (decay_accumulator > 0.5))) {
+ const double frame_boost =
+ calc_frame_boost(cpi, this_frame, 0, KF_MAX_BOOST);
// How fast is prediction quality decaying.
if (!detect_flash(twopass, 0)) {
- const double loop_decay_rate = get_prediction_decay_rate(&cpi->common,
- &next_frame);
+ const double loop_decay_rate =
+ get_prediction_decay_rate(&cpi->common, &next_frame);
decay_accumulator *= loop_decay_rate;
decay_accumulator = MAX(decay_accumulator, MIN_DECAY_FACTOR);
+ av_decay_accumulator += decay_accumulator;
+ ++loop_decay_counter;
}
-
- boost_score += (decay_accumulator * r);
+ boost_score += (decay_accumulator * frame_boost);
}
}
+ av_decay_accumulator /= (double)loop_decay_counter;
reset_fpf_position(twopass, start_position);
calculate_section_intra_ratio(start_position, twopass->stats_in_end,
rc->frames_to_key);
- // Work out how many bits to allocate for the key frame itself.
- rc->kf_boost = (int)boost_score;
-
- if (rc->kf_boost < (rc->frames_to_key * 3))
- rc->kf_boost = (rc->frames_to_key * 3);
- if (rc->kf_boost < MIN_KF_BOOST)
- rc->kf_boost = MIN_KF_BOOST;
+ // Apply various clamps for min and max boost
+ rc->kf_boost = (int)(av_decay_accumulator * boost_score);
+ rc->kf_boost = MAX(rc->kf_boost, (rc->frames_to_key * 3));
+ rc->kf_boost = MAX(rc->kf_boost, MIN_KF_BOOST);
+ // Work out how many bits to allocate for the key frame itself.
kf_bits = calculate_boost_bits((rc->frames_to_key - 1),
rc->kf_boost, twopass->kf_group_bits);
twopass->kf_group_bits -= kf_bits;
// Save the bits to spend on the key frame.
- twopass->gf_group.bit_allocation[0] = kf_bits;
- twopass->gf_group.update_type[0] = KF_UPDATE;
- twopass->gf_group.rf_level[0] = KF_STD;
+ gf_group->bit_allocation[0] = kf_bits;
+ gf_group->update_type[0] = KF_UPDATE;
+ gf_group->rf_level[0] = KF_STD;
// Note the total error score of the kf group minus the key frame itself.
twopass->kf_group_error_left = (int)(kf_group_err - kf_mod_err);
break;
default:
assert(0);
+ break;
}
- if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
- cpi->refresh_golden_frame = 0;
+ if (is_two_pass_svc(cpi)) {
+ if (cpi->svc.temporal_layer_id > 0) {
+ cpi->refresh_last_frame = 0;
+ cpi->refresh_golden_frame = 0;
+ }
+ if (cpi->svc.layer_context[cpi->svc.spatial_layer_id].gold_ref_idx < 0)
+ cpi->refresh_golden_frame = 0;
if (cpi->alt_ref_source == NULL)
cpi->refresh_alt_ref_frame = 0;
}
VP9_COMMON *const cm = &cpi->common;
RATE_CONTROL *const rc = &cpi->rc;
TWO_PASS *const twopass = &cpi->twopass;
+ GF_GROUP *const gf_group = &twopass->gf_group;
int frames_left;
FIRSTPASS_STATS this_frame;
FIRSTPASS_STATS this_frame_copy;
int target_rate;
- LAYER_CONTEXT *lc = NULL;
- const int is_spatial_svc = (cpi->use_svc &&
- cpi->svc.number_temporal_layers == 1);
- if (is_spatial_svc) {
- lc = &cpi->svc.layer_context[cpi->svc.spatial_layer_id];
+ LAYER_CONTEXT *const lc = is_two_pass_svc(cpi) ?
+ &cpi->svc.layer_context[cpi->svc.spatial_layer_id] : 0;
+
+ if (lc != NULL) {
frames_left = (int)(twopass->total_stats.count -
lc->current_video_frame_in_layer);
} else {
// If this is an arf frame then we dont want to read the stats file or
// advance the input pointer as we already have what we need.
- if (twopass->gf_group.update_type[twopass->gf_group.index] == ARF_UPDATE) {
+ if (gf_group->update_type[gf_group->index] == ARF_UPDATE) {
int target_rate;
configure_buffer_updates(cpi);
- target_rate = twopass->gf_group.bit_allocation[twopass->gf_group.index];
+ target_rate = gf_group->bit_allocation[gf_group->index];
target_rate = vp9_rc_clamp_pframe_target_size(cpi, target_rate);
rc->base_frame_target = target_rate;
-#ifdef LONG_TERM_VBR_CORRECTION
+
// Correction to rate target based on prior over or under shoot.
if (cpi->oxcf.rc_mode == VPX_VBR)
vbr_rate_correction(&target_rate, rc->vbr_bits_off_target);
-#endif
+
vp9_rc_set_frame_target(cpi, target_rate);
cm->frame_type = INTER_FRAME;
- if (is_spatial_svc) {
+ if (lc != NULL) {
if (cpi->svc.spatial_layer_id == 0) {
lc->is_key_frame = 0;
} else {
vp9_clear_system_state();
- if (is_spatial_svc && twopass->kf_intra_err_min == 0) {
- twopass->kf_intra_err_min = KF_MB_INTRA_MIN * cpi->common.MBs;
- twopass->gf_intra_err_min = GF_MB_INTRA_MIN * cpi->common.MBs;
- }
-
if (cpi->oxcf.rc_mode == VPX_Q) {
twopass->active_worst_quality = cpi->oxcf.cq_level;
} else if (cm->current_video_frame == 0 ||
- (is_spatial_svc && lc->current_video_frame_in_layer == 0)) {
+ (lc != NULL && lc->current_video_frame_in_layer == 0)) {
// Special case code for first frame.
const int section_target_bandwidth = (int)(twopass->bits_left /
frames_left);
section_target_bandwidth);
twopass->active_worst_quality = tmp_q;
rc->ni_av_qi = tmp_q;
- rc->avg_q = vp9_convert_qindex_to_q(tmp_q);
+ rc->avg_q = vp9_convert_qindex_to_q(tmp_q, cm->bit_depth);
}
vp9_zero(this_frame);
if (EOF == input_stats(twopass, &this_frame))
cm->frame_type = INTER_FRAME;
}
- if (is_spatial_svc) {
+ if (lc != NULL) {
if (cpi->svc.spatial_layer_id == 0) {
lc->is_key_frame = (cm->frame_type == KEY_FRAME);
+ if (lc->is_key_frame) {
+ cpi->ref_frame_flags &=
+ (~VP9_LAST_FLAG & ~VP9_GOLD_FLAG & ~VP9_ALT_FLAG);
+ lc->frames_from_key_frame = 0;
+ }
} else {
cm->frame_type = INTER_FRAME;
lc->is_key_frame = cpi->svc.layer_context[0].is_key_frame;
if (lc->is_key_frame) {
cpi->ref_frame_flags &= (~VP9_LAST_FLAG);
+ lc->frames_from_key_frame = 0;
}
}
}
}
rc->frames_till_gf_update_due = rc->baseline_gf_interval;
- if (!is_spatial_svc)
+ if (lc != NULL)
cpi->refresh_golden_frame = 1;
+
+#if ARF_STATS_OUTPUT
+ {
+ FILE *fpfile;
+ fpfile = fopen("arf.stt", "a");
+ ++arf_count;
+ fprintf(fpfile, "%10d %10d %10d %10ld\n",
+ cm->current_video_frame, rc->kf_boost, arf_count, rc->gfu_boost);
+
+ fclose(fpfile);
+ }
+#endif
}
configure_buffer_updates(cpi);
- target_rate = twopass->gf_group.bit_allocation[twopass->gf_group.index];
+ target_rate = gf_group->bit_allocation[gf_group->index];
if (cpi->common.frame_type == KEY_FRAME)
target_rate = vp9_rc_clamp_iframe_target_size(cpi, target_rate);
else
target_rate = vp9_rc_clamp_pframe_target_size(cpi, target_rate);
rc->base_frame_target = target_rate;
-#ifdef LONG_TERM_VBR_CORRECTION
+
// Correction to rate target based on prior over or under shoot.
if (cpi->oxcf.rc_mode == VPX_VBR)
vbr_rate_correction(&target_rate, rc->vbr_bits_off_target);
-#endif
+
vp9_rc_set_frame_target(cpi, target_rate);
// Update the total stats remaining structure.
void vp9_twopass_postencode_update(VP9_COMP *cpi) {
TWO_PASS *const twopass = &cpi->twopass;
RATE_CONTROL *const rc = &cpi->rc;
-#ifdef LONG_TERM_VBR_CORRECTION
- // In this experimental mode, the VBR correction is done exclusively through
- // rc->vbr_bits_off_target. Based on the sign of this value, a limited %
- // adjustment is made to the target rate of subsequent frames, to try and
- // push it back towards 0. This mode is less likely to suffer from
- // extreme behaviour at the end of a clip or group of frames.
+
+ // VBR correction is done through rc->vbr_bits_off_target. Based on the
+ // sign of this value, a limited % adjustment is made to the target rate
+ // of subsequent frames, to try and push it back towards 0. This method
+ // is designed to prevent extreme behaviour at the end of a clip
+ // or group of frames.
const int bits_used = rc->base_frame_target;
rc->vbr_bits_off_target += rc->base_frame_target - rc->projected_frame_size;
-#else
- // In this mode, VBR correction is acheived by altering bits_left,
- // kf_group_bits & gf_group_bits to reflect any deviation from the target
- // rate in this frame. This alters the allocation of bits to the
- // remaning frames in the group / clip.
- //
- // This method can give rise to unstable behaviour near the end of a clip
- // or kf/gf group of frames where any accumulated error is corrected over an
- // ever decreasing number of frames. Hence we change the balance of target
- // vs. actual bitrate gradually as we progress towards the end of the
- // sequence in order to mitigate this effect.
- const double progress =
- (double)(twopass->stats_in - twopass->stats_in_start) /
- (twopass->stats_in_end - twopass->stats_in_start);
- const int bits_used = (int)(progress * rc->this_frame_target +
- (1.0 - progress) * rc->projected_frame_size);
-#endif
twopass->bits_left = MAX(twopass->bits_left - bits_used, 0);
-#ifdef LONG_TERM_VBR_CORRECTION
if (cpi->common.frame_type != KEY_FRAME &&
!vp9_is_upper_layer_key_frame(cpi)) {
-#else
- if (cpi->common.frame_type == KEY_FRAME ||
- vp9_is_upper_layer_key_frame(cpi)) {
- // For key frames kf_group_bits already had the target bits subtracted out.
- // So now update to the correct value based on the actual bits used.
- twopass->kf_group_bits += rc->this_frame_target - bits_used;
- } else {
-#endif
twopass->kf_group_bits -= bits_used;
+ twopass->last_kfgroup_zeromotion_pct = twopass->kf_zeromotion_pct;
}
twopass->kf_group_bits = MAX(twopass->kf_group_bits, 0);
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