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Update libaom to commit ID 1e227d41f0616de9548a673a83a21ef990b62591

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trav90 2018-10-19 23:05:00 -05:00 • committed by Roy Tam
commit 368651059a
526 changed files with 34535 additions and 15900 deletions
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243
third_party/aom/av1/common/txb_common.h vendored
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@ -9,8 +9,8 @@
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_COMMON_TXB_COMMON_H_
#define AV1_COMMON_TXB_COMMON_H_
#ifndef AOM_AV1_COMMON_TXB_COMMON_H_
#define AOM_AV1_COMMON_TXB_COMMON_H_
extern const int16_t k_eob_group_start[12];
extern const int16_t k_eob_offset_bits[12];
@ -34,24 +34,6 @@ static const int base_level_count_to_index[13] = {
0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
};
// Note: TX_PAD_2D is dependent to this offset table.
static const int base_ref_offset[BASE_CONTEXT_POSITION_NUM][2] = {
/* clang-format off*/
{ -2, 0 }, { -1, -1 }, { -1, 0 }, { -1, 1 }, { 0, -2 }, { 0, -1 }, { 0, 1 },
{ 0, 2 }, { 1, -1 }, { 1, 0 }, { 1, 1 }, { 2, 0 }
/* clang-format on*/
};
#define CONTEXT_MAG_POSITION_NUM 3
static const int mag_ref_offset_with_txclass[3][CONTEXT_MAG_POSITION_NUM][2] = {
{ { 0, 1 }, { 1, 0 }, { 1, 1 } },
{ { 0, 1 }, { 1, 0 }, { 0, 2 } },
{ { 0, 1 }, { 1, 0 }, { 2, 0 } }
};
static const int mag_ref_offset[CONTEXT_MAG_POSITION_NUM][2] = {
{ 0, 1 }, { 1, 0 }, { 1, 1 }
};
static const TX_CLASS tx_type_to_class[TX_TYPES] = {
TX_CLASS_2D, // DCT_DCT
TX_CLASS_2D, // ADST_DCT
@ -71,61 +53,6 @@ static const TX_CLASS tx_type_to_class[TX_TYPES] = {
TX_CLASS_HORIZ, // H_FLIPADST
};
static const int8_t eob_to_pos_small[33] = {
0, 1, 2, // 0-2
3, 3, // 3-4
4, 4, 4, 4, // 5-8
5, 5, 5, 5, 5, 5, 5, 5, // 9-16
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 // 17-32
};
static const int8_t eob_to_pos_large[17] = {
6, // place holder
7, // 33-64
8, 8, // 65-128
9, 9, 9, 9, // 129-256
10, 10, 10, 10, 10, 10, 10, 10, // 257-512
11 // 513-
};
static INLINE int get_eob_pos_token(const int eob, int *const extra) {
int t;
if (eob < 33) {
t = eob_to_pos_small[eob];
} else {
const int e = AOMMIN((eob - 1) >> 5, 16);
t = eob_to_pos_large[e];
}
*extra = eob - k_eob_group_start[t];
return t;
}
static INLINE int av1_get_eob_pos_ctx(const TX_TYPE tx_type,
const int eob_token) {
static const int8_t tx_type_to_offset[TX_TYPES] = {
-1, // DCT_DCT
-1, // ADST_DCT
-1, // DCT_ADST
-1, // ADST_ADST
-1, // FLIPADST_DCT
-1, // DCT_FLIPADST
-1, // FLIPADST_FLIPADST
-1, // ADST_FLIPADST
-1, // FLIPADST_ADST
-1, // IDTX
10, // V_DCT
10, // H_DCT
10, // V_ADST
10, // H_ADST
10, // V_FLIPADST
10, // H_FLIPADST
};
return eob_token + tx_type_to_offset[tx_type];
}
static INLINE int get_txb_bwl(TX_SIZE tx_size) {
tx_size = av1_get_adjusted_tx_size(tx_size);
return tx_size_wide_log2[tx_size];
@ -141,36 +68,6 @@ static INLINE int get_txb_high(TX_SIZE tx_size) {
return tx_size_high[tx_size];
}
static INLINE void get_base_count_mag(int *mag, int *count,
const tran_low_t *tcoeffs, int bwl,
int height, int row, int col) {
mag[0] = 0;
mag[1] = 0;
for (int i = 0; i < NUM_BASE_LEVELS; ++i) count[i] = 0;
for (int idx = 0; idx < BASE_CONTEXT_POSITION_NUM; ++idx) {
const int ref_row = row + base_ref_offset[idx][0];
const int ref_col = col + base_ref_offset[idx][1];
if (ref_row < 0 || ref_col < 0 || ref_row >= height ||
ref_col >= (1 << bwl))
continue;
const int pos = (ref_row << bwl) + ref_col;
tran_low_t abs_coeff = abs(tcoeffs[pos]);
// count
for (int i = 0; i < NUM_BASE_LEVELS; ++i) {
count[i] += abs_coeff > i;
}
// mag
if (base_ref_offset[idx][0] >= 0 && base_ref_offset[idx][1] >= 0) {
if (abs_coeff > mag[0]) {
mag[0] = abs_coeff;
mag[1] = 1;
} else if (abs_coeff == mag[0]) {
++mag[1];
}
}
}
}
static INLINE uint8_t *set_levels(uint8_t *const levels_buf, const int width) {
return levels_buf + TX_PAD_TOP * (width + TX_PAD_HOR);
}
@ -179,30 +76,6 @@ static INLINE int get_padded_idx(const int idx, const int bwl) {
return idx + ((idx >> bwl) << TX_PAD_HOR_LOG2);
}
static INLINE int get_level_count(const uint8_t *const levels, const int stride,
const int row, const int col, const int level,
const int (*nb_offset)[2], const int nb_num) {
int count = 0;
for (int idx = 0; idx < nb_num; ++idx) {
const int ref_row = row + nb_offset[idx][0];
const int ref_col = col + nb_offset[idx][1];
const int pos = ref_row * stride + ref_col;
count += levels[pos] > level;
}
return count;
}
static INLINE void get_level_mag(const uint8_t *const levels, const int stride,
const int row, const int col, int *const mag) {
for (int idx = 0; idx < CONTEXT_MAG_POSITION_NUM; ++idx) {
const int ref_row = row + mag_ref_offset[idx][0];
const int ref_col = col + mag_ref_offset[idx][1];
const int pos = ref_row * stride + ref_col;
mag[idx] = levels[pos];
}
}
static INLINE int get_base_ctx_from_count_mag(int row, int col, int count,
int sig_mag) {
const int ctx = base_level_count_to_index[count];
@ -267,84 +140,6 @@ static INLINE int get_base_ctx_from_count_mag(int row, int col, int count,
return ctx_idx;
}
static INLINE int get_base_ctx(const uint8_t *const levels,
const int c, // raster order
const int bwl, const int level_minus_1,
const int count) {
const int row = c >> bwl;
const int col = c - (row << bwl);
const int stride = (1 << bwl) + TX_PAD_HOR;
int mag_count = 0;
int nb_mag[3] = { 0 };
get_level_mag(levels, stride, row, col, nb_mag);
for (int idx = 0; idx < 3; ++idx)
mag_count += nb_mag[idx] > (level_minus_1 + 1);
const int ctx_idx =
get_base_ctx_from_count_mag(row, col, count, AOMMIN(2, mag_count));
return ctx_idx;
}
#define BR_CONTEXT_POSITION_NUM 8 // Base range coefficient context
// Note: TX_PAD_2D is dependent to this offset table.
static const int br_ref_offset[BR_CONTEXT_POSITION_NUM][2] = {
/* clang-format off*/
{ -1, -1 }, { -1, 0 }, { -1, 1 }, { 0, -1 },
{ 0, 1 }, { 1, -1 }, { 1, 0 }, { 1, 1 },
/* clang-format on*/
};
static const int br_level_map[9] = {
0, 0, 1, 1, 2, 2, 3, 3, 3,
};
// Note: If BR_MAG_OFFSET changes, the calculation of offset in
// get_br_ctx_from_count_mag() must be updated.
#define BR_MAG_OFFSET 1
// TODO(angiebird): optimize this function by using a table to map from
// count/mag to ctx
static INLINE int get_br_count_mag(int *mag, const tran_low_t *tcoeffs, int bwl,
int height, int row, int col, int level) {
mag[0] = 0;
mag[1] = 0;
int count = 0;
for (int idx = 0; idx < BR_CONTEXT_POSITION_NUM; ++idx) {
const int ref_row = row + br_ref_offset[idx][0];
const int ref_col = col + br_ref_offset[idx][1];
if (ref_row < 0 || ref_col < 0 || ref_row >= height ||
ref_col >= (1 << bwl))
continue;
const int pos = (ref_row << bwl) + ref_col;
tran_low_t abs_coeff = abs(tcoeffs[pos]);
count += abs_coeff > level;
if (br_ref_offset[idx][0] >= 0 && br_ref_offset[idx][1] >= 0) {
if (abs_coeff > mag[0]) {
mag[0] = abs_coeff;
mag[1] = 1;
} else if (abs_coeff == mag[0]) {
++mag[1];
}
}
}
return count;
}
static INLINE int get_br_ctx_from_count_mag(const int row, const int col,
const int count, const int mag) {
// DC: 0 - 1
// Top row: 2 - 4
// Left column: 5 - 7
// others: 8 - 11
static const int offset_pos[2][2] = { { 8, 5 }, { 2, 0 } };
const int mag_clamp = AOMMIN(mag, 6);
const int offset = mag_clamp >> 1;
const int ctx =
br_level_map[count] + offset * BR_TMP_OFFSET + offset_pos[!row][!col];
return ctx;
}
static INLINE int get_br_ctx_2d(const uint8_t *const levels,
const int c, // raster order
const int bwl) {
@ -396,38 +191,6 @@ static AOM_FORCE_INLINE int get_br_ctx(const uint8_t *const levels,
return mag + 14;
}
#define SIG_REF_OFFSET_NUM 5
// Note: TX_PAD_2D is dependent to these offset tables.
static const int sig_ref_offset[SIG_REF_OFFSET_NUM][2] = {
{ 0, 1 }, { 1, 0 }, { 1, 1 }, { 0, 2 }, { 2, 0 }
// , { 1, 2 }, { 2, 1 },
};
static const int sig_ref_offset_vert[SIG_REF_OFFSET_NUM][2] = {
{ 1, 0 }, { 2, 0 }, { 0, 1 }, { 3, 0 }, { 4, 0 }
// , { 1, 1 }, { 2, 1 },
};
static const int sig_ref_offset_horiz[SIG_REF_OFFSET_NUM][2] = {
{ 0, 1 }, { 0, 2 }, { 1, 0 }, { 0, 3 }, { 0, 4 }
// , { 1, 1 }, { 1, 2 },
};
#define SIG_REF_DIFF_OFFSET_NUM 3
static const int sig_ref_diff_offset[SIG_REF_DIFF_OFFSET_NUM][2] = {
{ 1, 1 }, { 0, 2 }, { 2, 0 }
};
static const int sig_ref_diff_offset_vert[SIG_REF_DIFF_OFFSET_NUM][2] = {
{ 2, 0 }, { 3, 0 }, { 4, 0 }
};
static const int sig_ref_diff_offset_horiz[SIG_REF_DIFF_OFFSET_NUM][2] = {
{ 0, 2 }, { 0, 3 }, { 0, 4 }
};
static const uint8_t clip_max3[256] = {
0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
@ -658,4 +421,4 @@ static INLINE void get_txb_ctx(const BLOCK_SIZE plane_bsize,
void av1_init_lv_map(AV1_COMMON *cm);
#endif // AV1_COMMON_TXB_COMMON_H_
#endif // AOM_AV1_COMMON_TXB_COMMON_H_