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Commit 481c01fc authored by Angie Chiang's avatar Angie Chiang
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Re-write gen_txb_cache 

This speed up lv_map exp by 5%

Change-Id: Ic71e55c9e777031fe671589a96d8f2053f4d65a5
parent bbec5d00
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Showing with 42 additions and 118 deletions
av1/encoder/encodetxb.c
View file @ 481c01fc
......@@ -408,110 +408,10 @@ static INLINE int has_base(tran_low_t qc, int base_idx) {
return abs(qc) >= level;
}
static void gen_base_count_mag_arr(int (*base_count_arr)[MAX_TX_SQUARE],
int (*base_mag_arr)[2],
const tran_low_t *qcoeff, int bwl,
int height, int eob, const int16_t *scan) {
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
if (!has_base(qcoeff[coeff_idx], 0)) continue;
const int row = coeff_idx >> bwl;
const int col = coeff_idx - (row << bwl);
int *mag = base_mag_arr[coeff_idx];
get_mag(mag, qcoeff, bwl, height, row, col, base_ref_offset,
BASE_CONTEXT_POSITION_NUM);
for (int i = 0; i < NUM_BASE_LEVELS; ++i) {
if (!has_base(qcoeff[coeff_idx], i)) continue;
int *count = base_count_arr[i] + coeff_idx;
*count = get_level_count(qcoeff, bwl, height, row, col, i,
base_ref_offset, BASE_CONTEXT_POSITION_NUM);
}
}
}
static void gen_nz_count_arr(int(*nz_count_arr), const tran_low_t *qcoeff,
int bwl, int height, int eob,
const SCAN_ORDER *scan_order) {
const int16_t *scan = scan_order->scan;
const int16_t *iscan = scan_order->iscan;
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
const int row = coeff_idx >> bwl;
const int col = coeff_idx - (row << bwl);
nz_count_arr[coeff_idx] =
get_nz_count(qcoeff, bwl, height, row, col, iscan);
}
}
static void gen_nz_ctx_arr(int *nz_ctx_arr, int *nz_count_arr,
const tran_low_t *qcoeff, int bwl, int eob,
const SCAN_ORDER *scan_order) {
const int16_t *scan = scan_order->scan;
const int16_t *iscan = scan_order->iscan;
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
const int count = nz_count_arr[coeff_idx];
nz_ctx_arr[coeff_idx] =
get_nz_map_ctx_from_count(count, qcoeff, coeff_idx, bwl, iscan);
}
}
static void gen_base_ctx_arr(int (*base_ctx_arr)[MAX_TX_SQUARE],
int (*base_count_arr)[MAX_TX_SQUARE],
int (*base_mag_arr)[2], const tran_low_t *qcoeff,
int stride, int eob, const int16_t *scan) {
(void)qcoeff;
for (int i = 0; i < NUM_BASE_LEVELS; ++i) {
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
if (!has_base(qcoeff[coeff_idx], i)) continue;
const int row = coeff_idx / stride;
const int col = coeff_idx % stride;
const int count = base_count_arr[i][coeff_idx];
const int *mag = base_mag_arr[coeff_idx];
const int level = i + 1;
base_ctx_arr[i][coeff_idx] =
get_base_ctx_from_count_mag(row, col, count, mag[0], level);
}
}
}
static INLINE int has_br(tran_low_t qc) {
return abs(qc) >= 1 + NUM_BASE_LEVELS;
}
static void gen_br_count_mag_arr(int *br_count_arr, int (*br_mag_arr)[2],
const tran_low_t *qcoeff, int bwl, int height,
int eob, const int16_t *scan) {
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
if (!has_br(qcoeff[coeff_idx])) continue;
const int row = coeff_idx >> bwl;
const int col = coeff_idx - (row << bwl);
int *count = br_count_arr + coeff_idx;
int *mag = br_mag_arr[coeff_idx];
*count = get_level_count(qcoeff, bwl, height, row, col, NUM_BASE_LEVELS,
br_ref_offset, BR_CONTEXT_POSITION_NUM);
get_mag(mag, qcoeff, bwl, height, row, col, br_ref_offset,
BR_CONTEXT_POSITION_NUM);
}
}
static void gen_br_ctx_arr(int *br_ctx_arr, const int *br_count_arr,
int (*br_mag_arr)[2], const tran_low_t *qcoeff,
int stride, int eob, const int16_t *scan) {
(void)qcoeff;
for (int c = 0; c < eob; ++c) {
const int coeff_idx = scan[c]; // raster order
if (!has_br(qcoeff[coeff_idx])) continue;
const int row = coeff_idx / stride;
const int col = coeff_idx % stride;
const int count = br_count_arr[coeff_idx];
const int *mag = br_mag_arr[coeff_idx];
br_ctx_arr[coeff_idx] = get_br_ctx_from_count_mag(row, col, count, mag[0]);
}
}
static INLINE int get_sign_bit_cost(tran_low_t qc, int coeff_idx,
const int (*dc_sign_cost)[2],
int dc_sign_ctx) {
......@@ -541,26 +441,50 @@ static INLINE int get_golomb_cost(int abs_qc) {
}
}
// TODO(angiebird): add static once this function is called
void gen_txb_cache(TxbCache *txb_cache, TxbInfo *txb_info) {
// gen_nz_count_arr
const int16_t *scan = txb_info->scan_order->scan;
gen_nz_count_arr(txb_cache->nz_count_arr, txb_info->qcoeff, txb_info->bwl,
txb_info->height, txb_info->eob, txb_info->scan_order);
gen_nz_ctx_arr(txb_cache->nz_ctx_arr, txb_cache->nz_count_arr,
txb_info->qcoeff, txb_info->bwl, txb_info->eob,
txb_info->scan_order);
gen_base_count_mag_arr(txb_cache->base_count_arr, txb_cache->base_mag_arr,
txb_info->qcoeff, txb_info->bwl, txb_info->height,
txb_info->eob, scan);
gen_base_ctx_arr(txb_cache->base_ctx_arr, txb_cache->base_count_arr,
txb_cache->base_mag_arr, txb_info->qcoeff, txb_info->stride,
txb_info->eob, scan);
gen_br_count_mag_arr(txb_cache->br_count_arr, txb_cache->br_mag_arr,
txb_info->qcoeff, txb_info->bwl, txb_info->height,
txb_info->eob, scan);
gen_br_ctx_arr(txb_cache->br_ctx_arr, txb_cache->br_count_arr,
txb_cache->br_mag_arr, txb_info->qcoeff, txb_info->stride,
txb_info->eob, scan);
const int16_t *iscan = txb_info->scan_order->iscan;
const int bwl = txb_info->bwl;
const int height = txb_info->height;
tran_low_t *qcoeff = txb_info->qcoeff;
for (int c = 0; c < txb_info->eob; ++c) {
const int coeff_idx = scan[c]; // raster order
const int row = coeff_idx >> bwl;
const int col = coeff_idx - (row << bwl);
txb_cache->nz_count_arr[coeff_idx] =
get_nz_count(qcoeff, bwl, height, row, col, iscan);
const int nz_count = txb_cache->nz_count_arr[coeff_idx];
txb_cache->nz_ctx_arr[coeff_idx] =
get_nz_map_ctx_from_count(nz_count, qcoeff, coeff_idx, bwl, iscan);
// gen_base_count_mag_arr
if (!has_base(qcoeff[coeff_idx], 0)) continue;
int *base_mag = txb_cache->base_mag_arr[coeff_idx];
get_mag(base_mag, qcoeff, bwl, height, row, col, base_ref_offset,
BASE_CONTEXT_POSITION_NUM);
for (int i = 0; i < NUM_BASE_LEVELS; ++i) {
if (!has_base(qcoeff[coeff_idx], i)) continue;
int *base_count = txb_cache->base_count_arr[i] + coeff_idx;
*base_count = get_level_count(qcoeff, bwl, height, row, col, i,
base_ref_offset, BASE_CONTEXT_POSITION_NUM);
const int level = i + 1;
txb_cache->base_ctx_arr[i][coeff_idx] = get_base_ctx_from_count_mag(
row, col, *base_count, base_mag[0], level);
}
// gen_br_count_mag_arr
if (!has_br(qcoeff[coeff_idx])) continue;
int *br_count = txb_cache->br_count_arr + coeff_idx;
int *br_mag = txb_cache->br_mag_arr[coeff_idx];
*br_count = get_level_count(qcoeff, bwl, height, row, col, NUM_BASE_LEVELS,
br_ref_offset, BR_CONTEXT_POSITION_NUM);
get_mag(br_mag, qcoeff, bwl, height, row, col, br_ref_offset,
BR_CONTEXT_POSITION_NUM);
txb_cache->br_ctx_arr[coeff_idx] =
get_br_ctx_from_count_mag(row, col, *br_count, br_mag[0]);
}
}
static INLINE const int *get_level_prob(int level, int coeff_idx,
......
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