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Linearize extrabits writing.

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The decoder is already linear so changing these tables would just create
a mismatch.

Change-Id: Ib888c0dc273e089c38298f569bb35b6e4c32dd60
This commit is contained in:
Alex Converse
2016-07-26 15:35:42 -07:00
committed by Yaowu Xu
parent 8ec53b2655
commit 81fd890773
3 changed files with 42 additions and 74 deletions
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1
av1/common/entropy.h
View File

@@ -88,7 +88,6 @@ DECLARE_ALIGNED(16, extern const uint8_t, av1_cat6_prob_high12[18]);
#define EOB_MODEL_TOKEN 3
typedef struct {
const aom_tree_index *tree;
const aom_prob *prob;
int len;
int base_val;

13
av1/encoder/bitstream.c
View File

@@ -787,20 +787,19 @@ static void pack_mb_tokens(aom_writer *w, const TOKENEXTRA **tp,
if (extra_bits_av1_length) {
const unsigned char *pb = extra_bits_av1->prob;
const int value = extra_bits >> 1;
int num_bits = extra_bits_av1_length; // number of bits in value
const int num_bits = extra_bits_av1_length; // number of bits in value
assert(num_bits > 0);
index = 0;
do {
const int bb = (value >> --num_bits) & 1;
for (index = 0; index < num_bits; ++index) {
const int shift = num_bits - index - 1;
const int bb = (value >> shift) & 1;
if (skip_bits) {
--skip_bits;
assert(!bb);
} else {
aom_write(w, bb, pb[index >> 1]);
aom_write(w, bb, pb[index]);
}
index = extra_bits_av1->tree[index + bb];
} while (num_bits);
}
}
aom_write_bit(w, extra_bits & 1);

102
av1/encoder/tokenize.c
View File

@@ -90,15 +90,6 @@ const aom_tree_index av1_coef_tree[TREE_SIZE(ENTROPY_TOKENS)] = {
};
/* clang-format on */
static const aom_tree_index cat1[2] = { 0, 0 };
static const aom_tree_index cat2[4] = { 2, 2, 0, 0 };
static const aom_tree_index cat3[6] = { 2, 2, 4, 4, 0, 0 };
static const aom_tree_index cat4[8] = { 2, 2, 4, 4, 6, 6, 0, 0 };
static const aom_tree_index cat5[10] = { 2, 2, 4, 4, 6, 6, 8, 8, 0, 0 };
static const aom_tree_index cat6[28] = { 2, 2, 4, 4, 6, 6, 8, 8, 10, 10,
12, 12, 14, 14, 16, 16, 18, 18, 20, 20,
22, 22, 24, 24, 26, 26, 0, 0 };
static const int16_t zero_cost[] = { 0 };
static const int16_t sign_cost[1] = { 512 };
static const int16_t cat1_cost[1 << 1] = { 864, 1229 };
@@ -269,70 +260,49 @@ const int av1_cat6_high12_high_cost[1024] = {
};
#endif
#if CONFIG_AOM_HIGHBITDEPTH
static const aom_tree_index cat1_high10[2] = { 0, 0 };
static const aom_tree_index cat2_high10[4] = { 2, 2, 0, 0 };
static const aom_tree_index cat3_high10[6] = { 2, 2, 4, 4, 0, 0 };
static const aom_tree_index cat4_high10[8] = { 2, 2, 4, 4, 6, 6, 0, 0 };
static const aom_tree_index cat5_high10[10] = { 2, 2, 4, 4, 6, 6, 8, 8, 0, 0 };
static const aom_tree_index cat6_high10[32] = { 2, 2, 4, 4, 6, 6, 8, 8,
10, 10, 12, 12, 14, 14, 16, 16,
18, 18, 20, 20, 22, 22, 24, 24,
26, 26, 28, 28, 30, 30, 0, 0 };
static const aom_tree_index cat1_high12[2] = { 0, 0 };
static const aom_tree_index cat2_high12[4] = { 2, 2, 0, 0 };
static const aom_tree_index cat3_high12[6] = { 2, 2, 4, 4, 0, 0 };
static const aom_tree_index cat4_high12[8] = { 2, 2, 4, 4, 6, 6, 0, 0 };
static const aom_tree_index cat5_high12[10] = { 2, 2, 4, 4, 6, 6, 8, 8, 0, 0 };
static const aom_tree_index cat6_high12[36] = {
2, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12, 14, 14, 16, 16, 18, 18,
20, 20, 22, 22, 24, 24, 26, 26, 28, 28, 30, 30, 32, 32, 34, 34, 0, 0
};
#endif
const av1_extra_bit av1_extra_bits[ENTROPY_TOKENS] = {
{ 0, 0, 0, 0, zero_cost }, // ZERO_TOKEN
{ 0, 0, 0, 1, sign_cost }, // ONE_TOKEN
{ 0, 0, 0, 2, sign_cost }, // TWO_TOKEN
{ 0, 0, 0, 3, sign_cost }, // THREE_TOKEN
{ 0, 0, 0, 4, sign_cost }, // FOUR_TOKEN
{ cat1, av1_cat1_prob, 1, CAT1_MIN_VAL, cat1_cost }, // CATEGORY1_TOKEN
{ cat2, av1_cat2_prob, 2, CAT2_MIN_VAL, cat2_cost }, // CATEGORY2_TOKEN
{ cat3, av1_cat3_prob, 3, CAT3_MIN_VAL, cat3_cost }, // CATEGORY3_TOKEN
{ cat4, av1_cat4_prob, 4, CAT4_MIN_VAL, cat4_cost }, // CATEGORY4_TOKEN
{ cat5, av1_cat5_prob, 5, CAT5_MIN_VAL, cat5_cost }, // CATEGORY5_TOKEN
{ cat6, av1_cat6_prob, 14, CAT6_MIN_VAL, 0 }, // CATEGORY6_TOKEN
{ 0, 0, 0, 0, zero_cost } // EOB_TOKEN
{ 0, 0, 0, zero_cost }, // ZERO_TOKEN
{ 0, 0, 1, sign_cost }, // ONE_TOKEN
{ 0, 0, 2, sign_cost }, // TWO_TOKEN
{ 0, 0, 3, sign_cost }, // THREE_TOKEN
{ 0, 0, 4, sign_cost }, // FOUR_TOKEN
{ av1_cat1_prob, 1, CAT1_MIN_VAL, cat1_cost }, // CATEGORY1_TOKEN
{ av1_cat2_prob, 2, CAT2_MIN_VAL, cat2_cost }, // CATEGORY2_TOKEN
{ av1_cat3_prob, 3, CAT3_MIN_VAL, cat3_cost }, // CATEGORY3_TOKEN
{ av1_cat4_prob, 4, CAT4_MIN_VAL, cat4_cost }, // CATEGORY4_TOKEN
{ av1_cat5_prob, 5, CAT5_MIN_VAL, cat5_cost }, // CATEGORY5_TOKEN
{ av1_cat6_prob, 14, CAT6_MIN_VAL, 0 }, // CATEGORY6_TOKEN
{ 0, 0, 0, zero_cost } // EOB_TOKEN
};
#if CONFIG_AOM_HIGHBITDEPTH
const av1_extra_bit av1_extra_bits_high10[ENTROPY_TOKENS] = {
{ 0, 0, 0, 0, zero_cost }, // ZERO
{ 0, 0, 0, 1, sign_cost }, // ONE
{ 0, 0, 0, 2, sign_cost }, // TWO
{ 0, 0, 0, 3, sign_cost }, // THREE
{ 0, 0, 0, 4, sign_cost }, // FOUR
{ cat1_high10, av1_cat1_prob_high10, 1, CAT1_MIN_VAL, cat1_cost }, // CAT1
{ cat2_high10, av1_cat2_prob_high10, 2, CAT2_MIN_VAL, cat2_cost }, // CAT2
{ cat3_high10, av1_cat3_prob_high10, 3, CAT3_MIN_VAL, cat3_cost }, // CAT3
{ cat4_high10, av1_cat4_prob_high10, 4, CAT4_MIN_VAL, cat4_cost }, // CAT4
{ cat5_high10, av1_cat5_prob_high10, 5, CAT5_MIN_VAL, cat5_cost }, // CAT5
{ cat6_high10, av1_cat6_prob_high10, 16, CAT6_MIN_VAL, 0 }, // CAT6
{ 0, 0, 0, 0, zero_cost } // EOB
{ 0, 0, 0, zero_cost }, // ZERO
{ 0, 0, 1, sign_cost }, // ONE
{ 0, 0, 2, sign_cost }, // TWO
{ 0, 0, 3, sign_cost }, // THREE
{ 0, 0, 4, sign_cost }, // FOUR
{ av1_cat1_prob_high10, 1, CAT1_MIN_VAL, cat1_cost }, // CAT1
{ av1_cat2_prob_high10, 2, CAT2_MIN_VAL, cat2_cost }, // CAT2
{ av1_cat3_prob_high10, 3, CAT3_MIN_VAL, cat3_cost }, // CAT3
{ av1_cat4_prob_high10, 4, CAT4_MIN_VAL, cat4_cost }, // CAT4
{ av1_cat5_prob_high10, 5, CAT5_MIN_VAL, cat5_cost }, // CAT5
{ av1_cat6_prob_high10, 16, CAT6_MIN_VAL, 0 }, // CAT6
{ 0, 0, 0, zero_cost } // EOB
};
const av1_extra_bit av1_extra_bits_high12[ENTROPY_TOKENS] = {
{ 0, 0, 0, 0, zero_cost }, // ZERO
{ 0, 0, 0, 1, sign_cost }, // ONE
{ 0, 0, 0, 2, sign_cost }, // TWO
{ 0, 0, 0, 3, sign_cost }, // THREE
{ 0, 0, 0, 4, sign_cost }, // FOUR
{ cat1_high12, av1_cat1_prob_high12, 1, CAT1_MIN_VAL, cat1_cost }, // CAT1
{ cat2_high12, av1_cat2_prob_high12, 2, CAT2_MIN_VAL, cat2_cost }, // CAT2
{ cat3_high12, av1_cat3_prob_high12, 3, CAT3_MIN_VAL, cat3_cost }, // CAT3
{ cat4_high12, av1_cat4_prob_high12, 4, CAT4_MIN_VAL, cat4_cost }, // CAT4
{ cat5_high12, av1_cat5_prob_high12, 5, CAT5_MIN_VAL, cat5_cost }, // CAT5
{ cat6_high12, av1_cat6_prob_high12, 18, CAT6_MIN_VAL, 0 }, // CAT6
{ 0, 0, 0, 0, zero_cost } // EOB
{ 0, 0, 0, zero_cost }, // ZERO
{ 0, 0, 1, sign_cost }, // ONE
{ 0, 0, 2, sign_cost }, // TWO
{ 0, 0, 3, sign_cost }, // THREE
{ 0, 0, 4, sign_cost }, // FOUR
{ av1_cat1_prob_high12, 1, CAT1_MIN_VAL, cat1_cost }, // CAT1
{ av1_cat2_prob_high12, 2, CAT2_MIN_VAL, cat2_cost }, // CAT2
{ av1_cat3_prob_high12, 3, CAT3_MIN_VAL, cat3_cost }, // CAT3
{ av1_cat4_prob_high12, 4, CAT4_MIN_VAL, cat4_cost }, // CAT4
{ av1_cat5_prob_high12, 5, CAT5_MIN_VAL, cat5_cost }, // CAT5
{ av1_cat6_prob_high12, 18, CAT6_MIN_VAL, 0 }, // CAT6
{ 0, 0, 0, zero_cost } // EOB
};
#endif