void av1_foreach_transformed_block_in_plane(
const MACROBLOCKD *const xd, BLOCK_SIZE bsize, int plane,
foreach_transformed_block_visitor visit, void *arg) {
const struct macroblockd_plane *const pd = &xd->plane[plane];
const MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;
// block and transform sizes, in number of 4x4 blocks log 2 ("*_b")
// 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8
// transform size varies per plane, look it up in a common way.
const TX_SIZE tx_size = plane ? get_uv_tx_size(mbmi, pd) : mbmi->tx_size;
const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
const uint8_t txw_unit = tx_size_wide_unit[tx_size];
const uint8_t txh_unit = tx_size_high_unit[tx_size];
const int step = txw_unit * txh_unit;
int i = 0, r, c;
// If mb_to_right_edge is < 0 we are in a situation in which
// the current block size extends into the UMV and we won't
// visit the sub blocks that are wholly within the UMV.
const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane);
const int max_blocks_high = max_block_high(xd, plane_bsize, plane);
// Keep track of the row and column of the blocks we use so that we know
// if we are in the unrestricted motion border.
for (r = 0; r < max_blocks_high; r += txh_unit) {
// Skip visiting the sub blocks that are wholly within the UMV.
for (c = 0; c < max_blocks_wide; c += txw_unit) {
visit(plane, i, r, c, plane_bsize, tx_size, arg);
i += step;
}
}
}
static void tokenize_vartx(ThreadData *td, TOKENEXTRA **t, RUN_TYPE dry_run,
TX_SIZE tx_size, BLOCK_SIZE plane_bsize, int blk_row,
int blk_col, int block, int plane, void *arg) {
MACROBLOCK *const x = &td->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = xd->mi[0];
const struct macroblockd_plane *const pd = &xd->plane[plane];
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;
const TX_SIZE plane_tx_size =
plane ? av1_get_max_uv_txsize(mbmi->sb_type, pd->subsampling_x,
pd->subsampling_y)
: mbmi->inter_tx_size[av1_get_txb_size_index(plane_bsize, blk_row,
blk_col)];
if (tx_size == plane_tx_size || plane) {
plane_bsize = get_plane_block_size(mbmi->sb_type, pd->subsampling_x,
pd->subsampling_y);
if (!dry_run) {
av1_update_and_record_txb_context(plane, block, blk_row, blk_col,
plane_bsize, tx_size, arg);
} else if (dry_run == DRY_RUN_NORMAL) {
av1_update_txb_context_b(plane, block, blk_row, blk_col, plane_bsize,
tx_size, arg);
} else {
printf("DRY_RUN_COSTCOEFFS is not supported yet\n");
assert(0);
}
} else {
// Half the block size in transform block unit.
const TX_SIZE sub_txs = sub_tx_size_map[tx_size];
const int bsw = tx_size_wide_unit[sub_txs];
const int bsh = tx_size_high_unit[sub_txs];
const int step = bsw * bsh;
assert(bsw > 0 && bsh > 0);
for (int row = 0; row < tx_size_high_unit[tx_size]; row += bsh) {
for (int col = 0; col < tx_size_wide_unit[tx_size]; col += bsw) {
const int offsetr = blk_row + row;
const int offsetc = blk_col + col;
if (offsetr >= max_blocks_high || offsetc >= max_blocks_wide) continue;
tokenize_vartx(td, t, dry_run, sub_txs, plane_bsize, offsetr, offsetc,
block, plane, arg);
block += step;
}
}
}
}
void av1_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd,
int plane, TX_SIZE tx_size, int has_eob, int aoff,
int loff) {
ENTROPY_CONTEXT *const a = pd->above_context + aoff;
ENTROPY_CONTEXT *const l = pd->left_context + loff;
const int txs_wide = tx_size_wide_unit[tx_size];
const int txs_high = tx_size_high_unit[tx_size];
const BLOCK_SIZE bsize = AOMMAX(xd->mi[0]->mbmi.sb_type, BLOCK_8X8);
const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize, pd);
// above
if (has_eob && xd->mb_to_right_edge < 0) {
int i;
const int blocks_wide = max_block_wide(xd, plane_bsize, plane);
int above_contexts = txs_wide;
if (above_contexts + aoff > blocks_wide)
above_contexts = blocks_wide - aoff;
for (i = 0; i < above_contexts; ++i) a[i] = has_eob;
for (i = above_contexts; i < txs_wide; ++i) a[i] = 0;
} else {
memset(a, has_eob, sizeof(ENTROPY_CONTEXT) * txs_wide);
}
// left
if (has_eob && xd->mb_to_bottom_edge < 0) {
int i;
const int blocks_high = max_block_high(xd, plane_bsize, plane);
int left_contexts = txs_high;
if (left_contexts + loff > blocks_high) left_contexts = blocks_high - loff;
for (i = 0; i < left_contexts; ++i) l[i] = has_eob;
for (i = left_contexts; i < txs_high; ++i) l[i] = 0;
} else {
memset(l, has_eob, sizeof(ENTROPY_CONTEXT) * txs_high);
}
}
