ref: ba962a5f370d85a5fb8abf8aa67c7d5fb416f01c
parent: aea8d97a74ae8102a864baa1439dd4f4f25555e9
author: Scott LaVarnway <slavarnway@google.com>
date: Wed Mar 30 00:47:39 EDT 2016
VP9: Eliminate up_available and left_available Use above_mi and left_mi instead. Change-Id: I0b50e232c31d11da30aa2fb6f91a695aaf725e0c
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -158,9 +158,6 @@
MODE_INFO *left_mi;
MODE_INFO *above_mi;
- int up_available;
- int left_available;
-
const vpx_prob (*partition_probs)[PARTITION_TYPES - 1];
/* Distance of MB away from frame edges */
--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -404,20 +404,8 @@
xd->mb_to_right_edge = ((mi_cols - bw - mi_col) * MI_SIZE) * 8;
// Are edges available for intra prediction?
- xd->up_available = (mi_row != 0);
- xd->left_available = (mi_col > tile->mi_col_start);
- // TODO(slavarnway): eliminate up/left available ???
- if (xd->up_available) {- xd->above_mi = xd->mi[-xd->mi_stride];
- } else {- xd->above_mi = NULL;
- }
-
- if (xd->left_available) {- xd->left_mi = xd->mi[-1];
- } else {- xd->left_mi = NULL;
- }
+ xd->above_mi = (mi_row != 0) ? xd->mi[-xd->mi_stride] : NULL;
+ xd->left_mi = (mi_col > tile->mi_col_start) ? xd->mi[-1] : NULL;
}
static INLINE void update_partition_context(MACROBLOCKD *xd,
--- a/vp9/common/vp9_pred_common.c
+++ b/vp9/common/vp9_pred_common.c
@@ -20,10 +20,10 @@
// left of the entries corresponding to real macroblocks.
// The prediction flags in these dummy entries are initialized to 0.
const MODE_INFO *const left_mi = xd->left_mi;
- const int left_type = xd->left_available && is_inter_block(left_mi) ?
+ const int left_type = left_mi && is_inter_block(left_mi) ?
left_mi->interp_filter : SWITCHABLE_FILTERS;
const MODE_INFO *const above_mi = xd->above_mi;
- const int above_type = xd->up_available && is_inter_block(above_mi) ?
+ const int above_type = above_mi && is_inter_block(above_mi) ?
above_mi->interp_filter : SWITCHABLE_FILTERS;
if (left_type == above_type)
@@ -46,8 +46,8 @@
int vp9_get_intra_inter_context(const MACROBLOCKD *xd) {const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int has_above = xd->up_available;
- const int has_left = xd->left_available;
+ const int has_above = !!above_mi;
+ const int has_left = !!left_mi;
if (has_above && has_left) { // both edges availableconst int above_intra = !is_inter_block(above_mi);
@@ -66,8 +66,8 @@
int ctx;
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int has_above = xd->up_available;
- const int has_left = xd->left_available;
+ const int has_above = !!above_mi;
+ const int has_left = !!left_mi;
// Note:
// The mode info data structure has a one element border above and to the
// left of the entries corresponding to real macroblocks.
@@ -109,8 +109,8 @@
int pred_context;
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int above_in_image = xd->up_available;
- const int left_in_image = xd->left_available;
+ const int above_in_image = !!above_mi;
+ const int left_in_image = !!left_mi;
// Note:
// The mode info data structure has a one element border above and to the
@@ -190,8 +190,8 @@
int pred_context;
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int has_above = xd->up_available;
- const int has_left = xd->left_available;
+ const int has_above = !!above_mi;
+ const int has_left = !!left_mi;
// Note:
// The mode info data structure has a one element border above and to the
// left of the entries corresponding to real macroblocks.
@@ -256,8 +256,8 @@
int pred_context;
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int has_above = xd->up_available;
- const int has_left = xd->left_available;
+ const int has_above = !!above_mi;
+ const int has_left = !!left_mi;
// Note:
// The mode info data structure has a one element border above and to the
--- a/vp9/common/vp9_pred_common.h
+++ b/vp9/common/vp9_pred_common.h
@@ -113,8 +113,8 @@
const int max_tx_size = max_txsize_lookup[xd->mi[0]->sb_type];
const MODE_INFO *const above_mi = xd->above_mi;
const MODE_INFO *const left_mi = xd->left_mi;
- const int has_above = xd->up_available;
- const int has_left = xd->left_available;
+ const int has_above = !!above_mi;
+ const int has_left = !!left_mi;
int above_ctx = (has_above && !above_mi->skip) ? (int)above_mi->tx_size
: max_tx_size;
int left_ctx = (has_left && !left_mi->skip) ? (int)left_mi->tx_size
--- a/vp9/common/vp9_reconintra.c
+++ b/vp9/common/vp9_reconintra.c
@@ -425,8 +425,8 @@
int aoff, int loff, int plane) {const int bw = (1 << bwl_in);
const int txw = (1 << tx_size);
- const int have_top = loff || xd->up_available;
- const int have_left = aoff || xd->left_available;
+ const int have_top = loff || (xd->above_mi != NULL);
+ const int have_left = aoff || (xd->left_mi != NULL);
const int have_right = (aoff + txw) < bw;
const int x = aoff * 4;
const int y = loff * 4;
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -1228,10 +1228,10 @@
MODE_INFO *const mi = xd->mi[0];
INTERP_FILTER filter_ref;
- if (xd->up_available)
- filter_ref = xd->mi[-xd->mi_stride]->interp_filter;
- else if (xd->left_available)
- filter_ref = xd->mi[-1]->interp_filter;
+ if (xd->above_mi)
+ filter_ref = xd->above_mi->interp_filter;
+ else if (xd->left_mi)
+ filter_ref = xd->left_mi->interp_filter;
else
filter_ref = EIGHTTAP;
@@ -2266,8 +2266,8 @@
BLOCK_SIZE *max_block_size) {VP9_COMMON *const cm = &cpi->common;
MODE_INFO **mi = xd->mi;
- const int left_in_image = xd->left_available && mi[-1];
- const int above_in_image = xd->up_available && mi[-xd->mi_stride];
+ const int left_in_image = !!xd->left_mi;
+ const int above_in_image = !!xd->above_mi;
const int row8x8_remaining = tile->mi_row_end - mi_row;
const int col8x8_remaining = tile->mi_col_end - mi_col;
int bh, bw;
@@ -2362,7 +2362,7 @@
}
}
- if (xd->left_available) {+ if (xd->left_mi) { for (idy = 0; idy < mi_height; ++idy) {mi = xd->mi[idy * cm->mi_stride - 1];
bs = mi ? mi->sb_type : bsize;
@@ -2371,7 +2371,7 @@
}
}
- if (xd->up_available) {+ if (xd->above_mi) { for (idx = 0; idx < mi_width; ++idx) {mi = xd->mi[idx - cm->mi_stride];
bs = mi ? mi->sb_type : bsize;
--- a/vp9/encoder/vp9_firstpass.c
+++ b/vp9/encoder/vp9_firstpass.c
@@ -563,6 +563,7 @@
double intra_factor;
double brightness_factor;
BufferPool *const pool = cm->buffer_pool;
+ MODE_INFO mi_above, mi_left;
// First pass code requires valid last and new frame buffers.
assert(new_yv12 != NULL);
@@ -695,6 +696,12 @@
mb_row << 1, num_8x8_blocks_high_lookup[bsize],
mb_col << 1, num_8x8_blocks_wide_lookup[bsize],
cm->mi_rows, cm->mi_cols);
+ // Are edges available for intra prediction?
+ // Since the firstpass does not populate the mi_grid_visible,
+ // above_mi/left_mi must be overwritten with a nonzero value when edges
+ // are available. Required by vp9_predict_intra_block().
+ xd->above_mi = (mb_row != 0) ? &mi_above : NULL;
+ xd->left_mi = (mb_col > tile.mi_col_start) ? &mi_left : NULL;
// Do intra 16x16 prediction.
x->skip_encode = 0;
--- a/vp9/encoder/vp9_mbgraph.c
+++ b/vp9/encoder/vp9_mbgraph.c
@@ -243,6 +243,7 @@
int mb_y_offset = 0, arf_y_offset = 0, gld_y_offset = 0;
MV gld_top_mv = {0, 0};MODE_INFO mi_local;
+ MODE_INFO mi_above, mi_left;
vp9_zero(mi_local);
// Set up limit values for motion vectors to prevent them extending outside
@@ -249,7 +250,9 @@
// the UMV borders.
x->mv_row_min = -BORDER_MV_PIXELS_B16;
x->mv_row_max = (cm->mb_rows - 1) * 8 + BORDER_MV_PIXELS_B16;
- xd->up_available = 0;
+ // Signal to vp9_predict_intra_block() that above is not available
+ xd->above_mi = NULL;
+
xd->plane[0].dst.stride = buf->y_stride;
xd->plane[0].pre[0].stride = buf->y_stride;
xd->plane[1].dst.stride = buf->uv_stride;
@@ -268,7 +271,8 @@
// the UMV borders.
x->mv_col_min = -BORDER_MV_PIXELS_B16;
x->mv_col_max = (cm->mb_cols - 1) * 8 + BORDER_MV_PIXELS_B16;
- xd->left_available = 0;
+ // Signal to vp9_predict_intra_block() that left is not available
+ xd->left_mi = NULL;
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {MBGRAPH_MB_STATS *mb_stats = &stats->mb_stats[offset + mb_col];
@@ -280,7 +284,9 @@
if (mb_col == 0) {gld_top_mv = gld_left_mv;
}
- xd->left_available = 1;
+ // Signal to vp9_predict_intra_block() that left is available
+ xd->left_mi = &mi_left;
+
mb_y_in_offset += 16;
gld_y_in_offset += 16;
arf_y_in_offset += 16;
@@ -287,7 +293,10 @@
x->mv_col_min -= 16;
x->mv_col_max -= 16;
}
- xd->up_available = 1;
+
+ // Signal to vp9_predict_intra_block() that above is available
+ xd->above_mi = &mi_above;
+
mb_y_offset += buf->y_stride * 16;
gld_y_offset += golden_ref->y_stride * 16;
if (alt_ref)
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -1017,8 +1017,8 @@
tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
MODE_INFO *const mic = xd->mi[0];
int *bmode_costs;
- const MODE_INFO *above_mi = xd->mi[-xd->mi_stride];
- const MODE_INFO *left_mi = xd->left_available ? xd->mi[-1] : NULL;
+ const MODE_INFO *above_mi = xd->above_mi;
+ const MODE_INFO *left_mi = xd->left_mi;
const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0);
const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0);
bmode_costs = cpi->y_mode_costs[A][L];
@@ -1242,10 +1242,10 @@
x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
x->skip = 0;
- if (xd->up_available)
- filter_ref = xd->mi[-xd->mi_stride]->interp_filter;
- else if (xd->left_available)
- filter_ref = xd->mi[-1]->interp_filter;
+ if (xd->above_mi)
+ filter_ref = xd->above_mi->interp_filter;
+ else if (xd->left_mi)
+ filter_ref = xd->left_mi->interp_filter;
else
filter_ref = cm->interp_filter;
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -2460,10 +2460,10 @@
if (pred_filter_search) {INTERP_FILTER af = SWITCHABLE, lf = SWITCHABLE;
- if (xd->up_available)
- af = xd->mi[-xd->mi_stride]->interp_filter;
- if (xd->left_available)
- lf = xd->mi[-1]->interp_filter;
+ if (xd->above_mi)
+ af = xd->above_mi->interp_filter;
+ if (xd->left_mi)
+ lf = xd->left_mi->interp_filter;
if ((this_mode != NEWMV) || (af == lf))
best_filter = af;
--
⑨