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Update aom to commit id f5bdeac22930ff4c6b219be49c843db35970b918

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trav90 2018-10-18 06:04:57 -05:00 • committed by Roy Tam
commit 2ab8fcbfd1
370 changed files with 56185 additions and 32026 deletions
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18
third_party/aom/av1/common/scan.c vendored
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@ -6605,7 +6605,7 @@ static INLINE int clamp_64(int64_t value, int low, int high) {
}
static void update_scan_prob(AV1_COMMON *cm, TX_SIZE tx_size, TX_TYPE tx_type,
int rate_16) {
int rate) {
FRAME_CONTEXT *pre_fc = cm->pre_fc;
uint32_t *prev_non_zero_prob = get_non_zero_prob(pre_fc, tx_size, tx_type);
uint32_t *non_zero_prob = get_non_zero_prob(cm->fc, tx_size, tx_type);
@ -6615,13 +6615,18 @@ static void update_scan_prob(AV1_COMMON *cm, TX_SIZE tx_size, TX_TYPE tx_type,
int i;
for (i = 0; i < tx2d_size; i++) {
int64_t curr_prob =
block_num == 0 ? 0 : (non_zero_count[i] << 16) / block_num;
block_num == 0
? 0
: (non_zero_count[i] << ADAPT_SCAN_PROB_PRECISION) / block_num;
int64_t prev_prob = prev_non_zero_prob[i];
int64_t pred_prob =
(curr_prob * rate_16 + prev_prob * ((1 << 16) - rate_16)) >> 16;
(curr_prob * rate +
prev_prob * ((1 << ADAPT_SCAN_PROB_PRECISION) - rate)) >>
ADAPT_SCAN_PROB_PRECISION;
// TODO(angiebird): reduce the bit usage of probabilities and remove
// clamp_64()
non_zero_prob[i] = clamp_64(pred_prob, 0, UINT16_MAX);
non_zero_prob[i] =
clamp_64(pred_prob, 0, (1 << ADAPT_SCAN_PROB_PRECISION) - 1);
}
}
@ -6819,7 +6824,8 @@ void av1_init_scan_order(AV1_COMMON *cm) {
int i;
SCAN_ORDER *sc = &cm->fc->sc[tx_size][tx_type];
for (i = 0; i < tx2d_size; ++i) {
non_zero_prob[i] = (1 << 16) / 2; // init non_zero_prob to 0.5
non_zero_prob[i] =
(1 << ADAPT_SCAN_PROB_PRECISION) / 2; // init non_zero_prob to 0.5
}
update_scan_order_facade(cm, tx_size, tx_type);
sc->scan = get_adapt_scan(cm->fc, tx_size, tx_type);
@ -6840,7 +6846,7 @@ void av1_adapt_scan_order(AV1_COMMON *cm) {
#endif // CONFIG_RECT_TX && (CONFIG_EXT_TX || CONFIG_VAR_TX)
TX_TYPE tx_type;
for (tx_type = DCT_DCT; tx_type < TX_TYPES; ++tx_type) {
update_scan_prob(cm, tx_size, tx_type, ADAPT_SCAN_UPDATE_RATE_16);
update_scan_prob(cm, tx_size, tx_type, ADAPT_SCAN_UPDATE_RATE);
update_scan_order_facade(cm, tx_size, tx_type);
update_eob_threshold(cm, tx_size, tx_type);
}