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Commit 819f45a3 authored by Jingning Han's avatar Jingning Han
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Reduce the context model size for base level 

Further reduce the context model size needed for base levels down
to 25 per transform size.

Change-Id: I9df4870d2b027cdb1356de0fc4d5bcc22155319e
parent e775b8bc
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Inline Side-by-side
av1/common/entropy.h
View file @ 819f45a3
......@@ -79,7 +79,7 @@ extern "C" {
#define SIG_COEF_CONTEXTS_2D 16
#define SIG_COEF_CONTEXTS 16
#endif // CONFIG_EXT_TX
#define COEFF_BASE_CONTEXTS 42
#define COEFF_BASE_CONTEXTS 25
#define DC_SIGN_CONTEXTS 3
#define BR_TMP_OFFSET 12
......
av1/common/entropymode.c
View file @ 819f45a3
......@@ -32,77 +32,74 @@ const aom_prob default_dc_sign[PLANE_TYPES][DC_SIGN_CONTEXTS] = {
};
const aom_prob default_coeff_base
[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS][COEFF_BASE_CONTEXTS] =
{
[TX_SIZES][PLANE_TYPES][NUM_BASE_LEVELS][COEFF_BASE_CONTEXTS] = {
{ { {
230, 199, 168, 74, 128, 169, 213, 173, 87, 21, 60, 117, 213,
177, 126, 22, 64, 121, 206, 168, 67, 10, 33, 96, 140,
},
{
236, 218, 201, 124, 185, 219, 223, 196, 128, 65, 127, 176, 224,
199, 151, 75, 131, 177, 217, 190, 102, 38, 93, 161, 192,
} },
{ {
219, 188, 161, 46, 114, 163, 198, 154, 73, 10, 43, 101, 199,
160, 89, 12, 49, 111, 186, 136, 62, 2, 15, 66, 123,
},
{
228, 210, 191, 108, 177, 215, 213, 183, 125, 58, 112, 169, 212,
183, 134, 65, 120, 171, 206, 166, 90, 27, 73, 140, 173,
} } },
{ { {
232, 198, 164, 85, 124, 169, 207, 156, 49, 9, 42, 97, 208,
160, 90, 11, 45, 101, 198, 145, 50, 2, 15, 66, 120,
},
{
237, 218, 199, 123, 187, 222, 219, 187, 101, 54, 117, 167, 221,
189, 125, 61, 121, 171, 212, 175, 81, 27, 78, 147, 185,
} },
{ {
204, 165, 154, 39, 100, 144, 173, 117, 42, 7, 27, 71, 156,
108, 52, 9, 32, 78, 165, 117, 46, 2, 12, 55, 102,
},
{
225, 204, 183, 99, 173, 149, 205, 167, 88, 47, 99, 160, 186,
149, 88, 48, 98, 157, 183, 148, 76, 34, 75, 133, 187,
} } },
{ { { 222, 195, 160, 87, 108, 167, 209, 179, 60, 35, 31,
83, 120, 154, 208, 181, 140, 45, 28, 85, 117, 148,
201, 168, 86, 28, 19, 47, 81, 123, 129, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 230, 211, 198, 122, 175, 219, 221, 202, 106, 58, 95,
152, 178, 198, 221, 201, 160, 97, 96, 151, 171, 199,
214, 192, 124, 52, 67, 123, 150, 182, 170, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } },
{ { 206, 185, 149, 41, 87, 142, 188, 157, 50, 12, 20,
60, 101, 141, 191, 161, 98, 15, 20, 69, 106, 138,
176, 134, 50, 4, 6, 23, 51, 101, 116, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 218, 204, 187, 100, 161, 205, 211, 189, 106, 47, 83,
138, 168, 165, 206, 185, 133, 62, 86, 143, 165, 182,
201, 168, 95, 28, 47, 101, 126, 176, 174, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } } },
{ { { 221, 188, 156, 103, 104, 162, 203, 160, 29, 15, 18,
56, 93, 133, 203, 162, 108, 21, 17, 61, 94, 128,
194, 142, 63, 5, 6, 21, 48, 90, 114, 134, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 230, 207, 196, 123, 177, 222, 218, 192, 82, 50, 83,
141, 169, 195, 219, 192, 136, 75, 83, 142, 165, 181,
209, 175, 99, 33, 53, 103, 134, 171, 175, 180, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } },
{ { 183, 158, 145, 45, 83, 123, 167, 125, 34, 11, 14,
43, 70, 120, 143, 107, 65, 14, 12, 48, 69, 111,
152, 111, 59, 3, 6, 22, 41, 84, 99, 123, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 217, 197, 177, 99, 158, 213, 201, 173, 73, 39, 72,
128, 158, 189, 193, 157, 96, 49, 62, 120, 138, 166,
169, 148, 114, 32, 54, 100, 117, 163, 140, 154, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } } },
{ { { 219, 189, 180, 134, 131, 173, 197, 157, 40, 13, 18,
51, 88, 128, 200, 155, 91, 17, 14, 55, 84, 122,
181, 125, 49, 3, 4, 13, 30, 68, 97, 126, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 228, 207, 206, 136, 186, 220, 207, 188, 81, 44, 84,
136, 167, 189, 217, 187, 131, 65, 76, 136, 164, 191,
198, 161, 80, 25, 49, 92, 119, 159, 167, 180, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } },
{ { 206, 191, 210, 67, 109, 142, 145, 129, 39, 10, 15,
35, 55, 88, 147, 118, 64, 9, 10, 39, 60, 115,
142, 88, 7, 3, 6, 25, 45, 94, 108, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 211, 207, 224, 109, 181, 199, 171, 194, 96, 25, 77,
125, 102, 128, 205, 166, 110, 32, 60, 132, 171, 128,
171, 130, 13, 33, 61, 116, 142, 228, 213, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } } },
{ { { 220, 198, 201, 139, 137, 187, 197, 166, 43, 20, 28,
65, 94, 124, 191, 147, 90, 17, 18, 63, 84, 116,
175, 117, 46, 2, 4, 16, 27, 63, 91, 119, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 232, 218, 219, 140, 212, 229, 203, 197, 125, 40, 92,
142, 168, 168, 210, 182, 126, 68, 86, 133, 163, 180,
197, 160, 89, 21, 42, 93, 113, 161, 171, 169, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } },
{ { 218, 229, 245, 77, 120, 171, 183, 181, 128, 4, 15,
41, 94, 171, 67, 101, 57, 4, 7, 19, 50, 64,
146, 109, 15, 1, 6, 35, 61, 143, 148, 205, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 217, 217, 213, 86, 199, 171, 146, 197, 128, 47, 92,
116, 171, 128, 171, 158, 64, 16, 54, 57, 128, 128,
186, 155, 9, 41, 48, 135, 141, 253, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128 } } }
};
{ { {
231, 199, 182, 107, 136, 172, 200, 148, 55, 8, 35, 87, 204,
150, 72, 10, 37, 89, 184, 127, 36, 1, 9, 47, 103,
},
{
236, 217, 206, 128, 188, 222, 213, 180, 98, 51, 113, 166, 218,
182, 115, 55, 115, 167, 200, 162, 66, 22, 70, 135, 178,
} },
{ {
229, 200, 220, 56, 123, 179, 184, 123, 64, 8, 24, 62, 177,
118, 55, 8, 27, 70, 158, 101, 8, 1, 12, 54, 107,
},
{
232, 222, 223, 108, 195, 154, 213, 184, 71, 41, 101, 154, 206,
164, 109, 42, 96, 162, 182, 137, 5, 33, 81, 146, 177,
} } },
{ { {
232, 208, 213, 120, 151, 192, 200, 152, 57, 13, 44, 94, 200,
148, 87, 13, 42, 94, 181, 124, 45, 1, 9, 46, 99,
},
{
241, 226, 222, 129, 197, 179, 213, 184, 133, 57, 119, 168, 214,
178, 116, 64, 119, 162, 199, 157, 64, 24, 70, 130, 176,
} },
{ {
233, 223, 202, 65, 131, 128, 178, 138, 128, 2, 24, 59, 99,
111, 73, 3, 17, 52, 149, 99, 19, 2, 18, 72, 140,
},
{
240, 199, 230, 79, 181, 128, 192, 198, 128, 64, 121, 171, 192,
148, 37, 26, 83, 85, 183, 149, 8, 33, 101, 168, 128,
} } }
};
static const aom_prob default_nz_map[TX_SIZES][PLANE_TYPES][SIG_COEF_CONTEXTS] =
{ { { 40, 157, 108, 70, 34, 19, 168, 98, 60, 32, 20, 128,
......
av1/common/txb_common.h
View file @ 819f45a3
......@@ -37,6 +37,10 @@ static INLINE TX_SIZE get_txsize_context(TX_SIZE tx_size) {
return txsize_sqr_up_map[tx_size];
}
static const int base_level_count_to_index[13] = {
0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
};
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 },
......@@ -122,7 +126,7 @@ static INLINE int get_level_count_mag_coeff(
static INLINE int get_base_ctx_from_count_mag(int row, int col, int count,
int sig_mag) {
const int ctx = (count + 1) >> 1;
const int ctx = base_level_count_to_index[count];
int ctx_idx = -1;
if (row == 0 && col == 0) {
......@@ -138,7 +142,6 @@ static INLINE int get_base_ctx_from_count_mag(int row, int col, int count,
ctx_idx = 3 + ctx;
assert(ctx_idx <= 6);
return ctx_idx;
} else if (row == 0) {
if (sig_mag >= 2) return ctx_idx = 6;
......@@ -151,39 +154,36 @@ static INLINE int get_base_ctx_from_count_mag(int row, int col, int count,
}
ctx_idx = 9 + ctx;
assert(ctx_idx <= 13);
assert(ctx_idx <= 11);
return ctx_idx;
} else if (col == 0) {
if (sig_mag >= 2) return ctx_idx = 14;
if (sig_mag >= 2) return ctx_idx = 12;
if (sig_mag == 1) {
if (count >= 2)
ctx_idx = 15;
ctx_idx = 13;
else
ctx_idx = 16;
ctx_idx = 14;
return ctx_idx;
}
ctx_idx = 17 + ctx;
assert(ctx_idx <= 21);
ctx_idx = 15 + ctx;
assert(ctx_idx <= 17);
// TODO(angiebird): turn this on once the optimization is finalized
// assert(ctx_idx < 28);
} else {
if (sig_mag >= 2) return ctx_idx = 22;
if (sig_mag >= 2) return ctx_idx = 18;
if (sig_mag == 1) {
if (count >= 2)
ctx_idx = 23;
ctx_idx = 19;
else
ctx_idx = 24;
ctx_idx = 20;
return ctx_idx;
}
ctx_idx = 25 + ctx;
ctx_idx = 21 + ctx;
assert(ctx_idx <= 31);
assert(ctx_idx <= 24);
}
return ctx_idx;
}
......
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