Commit f64062f3 authored by Jingning Han's avatar Jingning Han

Make bit-stream support rectangular tx_size

Allow the transform size writing, reading, and the reconstruction
process to support rectangular transform block size coding.

Change-Id: I57393c73ec60835a088d785ca838d7e3d7eb29a4
parent a9336328
......@@ -352,16 +352,8 @@ static void decode_reconstruct_tx(AV1_COMMON *cm, MACROBLOCKD *const xd,
plane ? uv_txsize_lookup[bsize][mbmi->inter_tx_size[tx_row][tx_col]][0][0]
: mbmi->inter_tx_size[tx_row][tx_col];
// Scale to match transform block unit.
int max_blocks_high = block_size_high[plane_bsize];
int max_blocks_wide = block_size_wide[plane_bsize];
if (xd->mb_to_bottom_edge < 0)
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 >> (3 + pd->subsampling_x);
max_blocks_high >>= tx_size_wide_log2[0];
max_blocks_wide >>= tx_size_wide_log2[0];
const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
if (blk_row >= max_blocks_high || blk_col >= max_blocks_wide) return;
......@@ -380,7 +372,8 @@ static void decode_reconstruct_tx(AV1_COMMON *cm, MACROBLOCKD *const xd,
pd->dst.stride, max_scan_line, eob);
*eob_total += eob;
} else {
int bsl = block_size_wide[bsize] >> (tx_size_wide_log2[0] + 1);
const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
const int bsl = tx_size_wide_unit[sub_txs];
int i;
assert(bsl > 0);
......@@ -392,7 +385,7 @@ static void decode_reconstruct_tx(AV1_COMMON *cm, MACROBLOCKD *const xd,
if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
decode_reconstruct_tx(cm, xd, r, mbmi, plane, plane_bsize, offsetr,
offsetc, tx_size - 1, eob_total);
offsetc, sub_txs, eob_total);
}
}
}
......@@ -1318,8 +1311,8 @@ static void decode_block(AV1Decoder *const pbi, MACROBLOCKD *const xd,
const BLOCK_SIZE plane_bsize =
get_plane_block_size(AOMMAX(bsize, BLOCK_8X8), pd);
const TX_SIZE max_tx_size = max_txsize_lookup[plane_bsize];
const int bw_var_tx = tx_size_high_unit[max_tx_size];
const int bh_var_tx = tx_size_wide_unit[max_tx_size];
const int bh_var_tx = tx_size_high_unit[max_tx_size];
const int bw_var_tx = tx_size_wide_unit[max_tx_size];
#if CONFIG_EXT_TX && CONFIG_RECT_TX
if (is_rect_tx(mbmi->tx_size)) {
const TX_SIZE tx_size =
......
......@@ -298,22 +298,14 @@ static void read_tx_size_vartx(AV1_COMMON *cm, MACROBLOCKD *xd,
int is_split = 0;
const int tx_row = blk_row >> 1;
const int tx_col = blk_col >> 1;
int max_blocks_high = block_size_high[mbmi->sb_type];
int max_blocks_wide = block_size_wide[mbmi->sb_type];
const int max_blocks_high = max_block_high(xd, mbmi->sb_type, 0);
const int max_blocks_wide = max_block_wide(xd, mbmi->sb_type, 0);
int ctx = txfm_partition_context(xd->above_txfm_context + tx_col,
xd->left_txfm_context + tx_row,
mbmi->sb_type, tx_size);
TX_SIZE(*const inter_tx_size)
[MAX_MIB_SIZE] =
(TX_SIZE(*)[MAX_MIB_SIZE]) & mbmi->inter_tx_size[tx_row][tx_col];
if (xd->mb_to_bottom_edge < 0) max_blocks_high += xd->mb_to_bottom_edge >> 3;
if (xd->mb_to_right_edge < 0) max_blocks_wide += xd->mb_to_right_edge >> 3;
// Scale to transform block unit.
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;
if (depth == MAX_VARTX_DEPTH) {
......@@ -332,9 +324,8 @@ static void read_tx_size_vartx(AV1_COMMON *cm, MACROBLOCKD *xd,
is_split = aom_read(r, cm->fc->txfm_partition_prob[ctx], ACCT_STR);
if (is_split) {
BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
// Half the block size in transform block unit.
int bsl = block_size_wide[bsize] >> (tx_size_wide_log2[0] + 1);
const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
const int bsl = tx_size_wide_unit[sub_txs];
int i;
if (counts) ++counts->txfm_partition[ctx][1];
......@@ -349,9 +340,9 @@ static void read_tx_size_vartx(AV1_COMMON *cm, MACROBLOCKD *xd,
assert(bsl > 0);
for (i = 0; i < 4; ++i) {
int offsetr = blk_row + ((i >> 1) * bsl);
int offsetc = blk_col + ((i & 0x01) * bsl);
read_tx_size_vartx(cm, xd, mbmi, counts, tx_size - 1, depth + 1, offsetr,
int offsetr = blk_row + (i >> 1) * bsl;
int offsetc = blk_col + (i & 0x01) * bsl;
read_tx_size_vartx(cm, xd, mbmi, counts, sub_txs, depth + 1, offsetr,
offsetc, r);
}
} else {
......@@ -1802,8 +1793,8 @@ static void read_inter_frame_mode_info(AV1Decoder *const pbi,
if (bsize >= BLOCK_8X8 && cm->tx_mode == TX_MODE_SELECT && !mbmi->skip &&
inter_block) {
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
const BLOCK_SIZE txb_size = txsize_to_bsize[max_tx_size];
const int bs = block_size_wide[txb_size] >> tx_size_wide_log2[0];
const int bh = tx_size_high_unit[max_tx_size];
const int bw = tx_size_wide_unit[max_tx_size];
const int width = block_size_wide[bsize] >> tx_size_wide_log2[0];
const int height = block_size_high[bsize] >> tx_size_wide_log2[0];
int idx, idy;
......@@ -1824,8 +1815,8 @@ static void read_inter_frame_mode_info(AV1Decoder *const pbi,
set_txfm_ctxs(mbmi->tx_size, xd->n8_w, xd->n8_h, xd);
} else {
#endif // CONFIG_EXT_TX && CONFIG_RECT_TX
for (idy = 0; idy < height; idy += bs)
for (idx = 0; idx < width; idx += bs)
for (idy = 0; idy < height; idy += bh)
for (idx = 0; idx < width; idx += bw)
read_tx_size_vartx(cm, xd, mbmi, xd->counts, max_tx_size,
height != width, idy, idx, r);
#if CONFIG_EXT_TX && CONFIG_RECT_TX
......
......@@ -376,9 +376,10 @@ static void write_tx_size_vartx(const AV1_COMMON *cm, const MACROBLOCKD *xd,
txfm_partition_update(xd->above_txfm_context + tx_col,
xd->left_txfm_context + tx_row, tx_size);
} else {
const BLOCK_SIZE bsize = txsize_to_bsize[tx_size];
int bsl = b_width_log2_lookup[bsize];
const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
const int bsl = tx_size_wide_unit[sub_txs];
int i;
aom_write(w, 1, cm->fc->txfm_partition_prob[ctx]);
if (tx_size == TX_8X8) {
......@@ -388,12 +389,11 @@ static void write_tx_size_vartx(const AV1_COMMON *cm, const MACROBLOCKD *xd,
}
assert(bsl > 0);
--bsl;
for (i = 0; i < 4; ++i) {
int offsetr = blk_row + ((i >> 1) << bsl);
int offsetc = blk_col + ((i & 0x01) << bsl);
write_tx_size_vartx(cm, xd, mbmi, tx_size - 1, depth + 1, offsetr,
offsetc, w);
int offsetr = blk_row + (i >> 1) * bsl;
int offsetc = blk_col + (i & 0x01) * bsl;
write_tx_size_vartx(cm, xd, mbmi, sub_txs, depth + 1, offsetr, offsetc,
w);
}
}
}
......@@ -1194,8 +1194,8 @@ static void pack_inter_mode_mvs(AV1_COMP *cpi, const MODE_INFO *mi,
#if CONFIG_VAR_TX
if (is_inter) { // This implies skip flag is 0.
const TX_SIZE max_tx_size = max_txsize_lookup[bsize];
const int txb_size = txsize_to_bsize[max_tx_size];
const int bs = num_4x4_blocks_wide_lookup[txb_size];
const int bh = tx_size_high_unit[max_tx_size];
const int bw = tx_size_wide_unit[max_tx_size];
const int width = num_4x4_blocks_wide_lookup[bsize];
const int height = num_4x4_blocks_high_lookup[bsize];
int idx, idy;
......@@ -1212,8 +1212,8 @@ static void pack_inter_mode_mvs(AV1_COMP *cpi, const MODE_INFO *mi,
set_txfm_ctxs(mbmi->tx_size, xd->n8_w, xd->n8_h, xd);
} else {
#endif // CONFIG_EXT_TX && CONFIG_RECT_TX
for (idy = 0; idy < height; idy += bs)
for (idx = 0; idx < width; idx += bs)
for (idy = 0; idy < height; idy += bh)
for (idx = 0; idx < width; idx += bw)
write_tx_size_vartx(cm, xd, mbmi, max_tx_size, height != width, idy,
idx, w);
#if CONFIG_EXT_TX && CONFIG_RECT_TX
......
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