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Refactor recursive transform block partition search

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Use unified transform block size and coding block size map. This
prepares for the integration of 2x2 transform block size and the
rectangular transform block size.

Change-Id: I99f51017d19aef337639b708ee9c7faedcc20935
This commit is contained in:
Jingning Han
2016-10-27 16:35:32 -07:00
parent c4049db573
commit 5822404485
1 changed files with 37 additions and 33 deletions
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70
av1/encoder/rdopt.c
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@@ -3054,9 +3054,9 @@ static void select_tx_block(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
TX_SIZE(*const inter_tx_size)
[MAX_MIB_SIZE] =
(TX_SIZE(*)[MAX_MIB_SIZE]) & mbmi->inter_tx_size[tx_row][tx_col];
const int bw = num_4x4_blocks_wide_lookup[plane_bsize];
int max_blocks_high = num_4x4_blocks_high_lookup[plane_bsize];
int max_blocks_wide = bw;
int max_blocks_high = block_size_high[plane_bsize];
int max_blocks_wide = block_size_wide[plane_bsize];
const int bw = block_size_wide[plane_bsize] >> tx_size_wide_log2[0];
int64_t this_rd = INT64_MAX;
ENTROPY_CONTEXT *pta = ta + blk_col;
ENTROPY_CONTEXT *ptl = tl + blk_row;
@@ -3103,9 +3103,12 @@ static void select_tx_block(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
coeff_ctx = combine_entropy_contexts(stxa, stxl);
if (xd->mb_to_bottom_edge < 0)
max_blocks_high += xd->mb_to_bottom_edge >> (5 + pd->subsampling_y);
max_blocks_high += xd->mb_to_bottom_edge >> (3 + pd->subsampling_y);
if (xd->mb_to_right_edge < 0)
max_blocks_wide += xd->mb_to_right_edge >> (5 + pd->subsampling_x);
max_blocks_wide += xd->mb_to_right_edge >> (3 + pd->subsampling_x);
max_blocks_high >>= tx_size_wide_log2[0];
max_blocks_wide >>= tx_size_wide_log2[0];
*rate = 0;
*dist = 0;
@@ -3144,8 +3147,10 @@ static void select_tx_block(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
if (tx_size > TX_4X4 && depth < MAX_VARTX_DEPTH) {
BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
int bsl = b_height_log2_lookup[bsize];
int sub_step = num_4x4_blocks_txsize_lookup[tx_size - 1];
int bsl = block_size_wide[bsize] >> (tx_size_wide_log2[0] + 1);
// TODO(jingning): Refactor this transform block size transition.
TX_SIZE sub_txs = tx_size - 1;
int sub_step = tx_size_wide_unit[sub_txs] * tx_size_high_unit[sub_txs];
int this_rate;
int64_t this_dist;
int64_t this_bsse;
@@ -3156,15 +3161,13 @@ static void select_tx_block(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
#if CONFIG_EXT_TX
assert(tx_size < TX_SIZES);
#endif // CONFIG_EXT_TX
--bsl;
for (i = 0; i < 4 && this_cost_valid; ++i) {
int offsetr = (i >> 1) << bsl;
int offsetc = (i & 0x01) << bsl;
int offsetr = (i >> 1) * bsl;
int offsetc = (i & 0x01) * bsl;
select_tx_block(cpi, x, blk_row + offsetr, blk_col + offsetc, plane,
block + i * sub_step, tx_size - 1, depth + 1, plane_bsize,
ta, tl, tx_above, tx_left, &this_rate, &this_dist,
&this_bsse, &this_skip, ref_best_rd - tmp_rd,
&this_cost_valid);
block + i * sub_step, sub_txs, depth + 1, plane_bsize, ta,
tl, tx_above, tx_left, &this_rate, &this_dist, &this_bsse,
&this_skip, ref_best_rd - tmp_rd, &this_cost_valid);
sum_rate += this_rate;
sum_dist += this_dist;
sum_bsse += this_bsse;
@@ -3177,15 +3180,13 @@ static void select_tx_block(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
if (this_rd < sum_rd) {
int idx, idy;
for (i = 0; i < num_4x4_blocks_wide_txsize_lookup[tx_size]; ++i)
pta[i] = !(tmp_eob == 0);
for (i = 0; i < num_4x4_blocks_high_txsize_lookup[tx_size]; ++i)
ptl[i] = !(tmp_eob == 0);
for (i = 0; i < tx_size_wide_unit[tx_size]; ++i) pta[i] = !(tmp_eob == 0);
for (i = 0; i < tx_size_high_unit[tx_size]; ++i) ptl[i] = !(tmp_eob == 0);
txfm_partition_update(tx_above + (blk_col >> 1), tx_left + (blk_row >> 1),
tx_size);
inter_tx_size[0][0] = tx_size;
for (idy = 0; idy < num_4x4_blocks_high_txsize_lookup[tx_size] / 2; ++idy)
for (idx = 0; idx < num_4x4_blocks_wide_txsize_lookup[tx_size] / 2; ++idx)
for (idy = 0; idy < tx_size_high_unit[tx_size] / 2; ++idy)
for (idx = 0; idx < tx_size_wide_unit[tx_size] / 2; ++idx)
inter_tx_size[idy][idx] = tx_size;
mbmi->tx_size = tx_size;
if (this_rd == INT64_MAX) *is_cost_valid = 0;
@@ -3479,17 +3480,20 @@ static void tx_block_rd(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
const int tx_row = blk_row >> (1 - pd->subsampling_y);
const int tx_col = blk_col >> (1 - pd->subsampling_x);
TX_SIZE plane_tx_size;
int max_blocks_high = num_4x4_blocks_high_lookup[plane_bsize];
int max_blocks_wide = num_4x4_blocks_wide_lookup[plane_bsize];
int max_blocks_high = block_size_high[plane_bsize];
int max_blocks_wide = block_size_wide[plane_bsize];
#if CONFIG_EXT_TX
assert(tx_size < TX_SIZES);
#endif // CONFIG_EXT_TX
if (xd->mb_to_bottom_edge < 0)
max_blocks_high += xd->mb_to_bottom_edge >> (5 + pd->subsampling_y);
max_blocks_high += xd->mb_to_bottom_edge >> (3 + pd->subsampling_y);
if (xd->mb_to_right_edge < 0)
max_blocks_wide += xd->mb_to_right_edge >> (5 + pd->subsampling_x);
max_blocks_wide += xd->mb_to_right_edge >> (3 + pd->subsampling_x);
max_blocks_high >>= tx_size_wide_log2[0];
max_blocks_wide >>= tx_size_wide_log2[0];
if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
@@ -3521,24 +3525,24 @@ static void tx_block_rd(const AV1_COMP *cpi, MACROBLOCK *x, int blk_row,
av1_tx_block_rd_b(cpi, x, tx_size, blk_row, blk_col, plane, block,
plane_bsize, coeff_ctx, rate, dist, bsse, skip);
for (i = 0; i < num_4x4_blocks_wide_txsize_lookup[tx_size]; ++i)
for (i = 0; i < tx_size_wide_unit[tx_size]; ++i)
ta[i] = !(p->eobs[block] == 0);
for (i = 0; i < num_4x4_blocks_high_txsize_lookup[tx_size]; ++i)
for (i = 0; i < tx_size_high_unit[tx_size]; ++i)
tl[i] = !(p->eobs[block] == 0);
} else {
int bsl = b_width_log2_lookup[bsize];
int step = num_4x4_blocks_txsize_lookup[tx_size - 1];
const int bsl = block_size_wide[bsize] >> (1 + tx_size_wide_log2[0]);
const TX_SIZE sub_txs = tx_size - 1;
int step = tx_size_wide_unit[sub_txs] * tx_size_high_unit[sub_txs];
int i;
assert(bsl > 0);
--bsl;
for (i = 0; i < 4; ++i) {
int offsetr = (i >> 1) << bsl;
int offsetc = (i & 0x01) << bsl;
int offsetr = (i >> 1) * bsl;
int offsetc = (i & 0x01) * bsl;
tx_block_rd(cpi, x, blk_row + offsetr, blk_col + offsetc, plane,
block + i * step, tx_size - 1, plane_bsize, above_ctx,
left_ctx, rate, dist, bsse, skip);
block + i * step, sub_txs, plane_bsize, above_ctx, left_ctx,
rate, dist, bsse, skip);
}
}
}