ref: 8cf352abac23e655d5c40df273ab47e2c8395944
parent: ff4f1c4b7663695aed883dc66221bb0899f11ac2
author: Jim Bankoski <jimbankoski@google.com>
date: Tue Nov 19 09:31:38 EST 2013
entropy code speedup Change-Id: Ic316d3374ff9a2b43897272260947d56765a0fdd
--- a/vp9/common/vp9_entropy.c
+++ b/vp9/common/vp9_entropy.c
@@ -15,7 +15,6 @@
#include "vpx_mem/vpx_mem.h"
#include "vpx/vpx_integer.h"
-#define MODEL_NODES (ENTROPY_NODES - UNCONSTRAINED_NODES)
DECLARE_ALIGNED(16, const uint8_t, vp9_norm[256]) = {0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
@@ -158,6 +157,8 @@
// the probabilities for the rest of the nodes.
// beta = 8
+
+
static const vp9_prob pareto8_probs[COEFPROB_MODELS][MODEL_NODES] = { { 3, 86, 128, 6, 86, 23, 88, 29}, { 9, 86, 129, 17, 88, 61, 94, 76},@@ -287,6 +288,268 @@
{255, 238, 240, 255, 235, 255, 252, 255}, {255, 241, 243, 255, 236, 255, 252, 254}, {255, 246, 247, 255, 239, 255, 253, 255}+};
+
+// This table is an expansion of the table : modelcoefprobs_pareto8
+// to all 255 probabilities using the code as follows to do the expansion:
+// tree_probs[i] = (model[l][i - UNCONSTRAINED_NODES] +
+// model[l + 1][i - UNCONSTRAINED_NODES]) >> 1;
+const vp9_prob vp9_pareto8_full[255][MODEL_NODES] = {+ { 3, 86, 128, 6, 86, 23, 88, 29},+ { 6, 86, 128, 11, 87, 42, 91, 52},+ { 9, 86, 129, 17, 88, 61, 94, 76},+ { 12, 86, 129, 22, 88, 77, 97, 93},+ { 15, 87, 129, 28, 89, 93, 100, 110},+ { 17, 87, 129, 33, 90, 105, 103, 123},+ { 20, 88, 130, 38, 91, 118, 106, 136},+ { 23, 88, 130, 43, 91, 128, 108, 146},+ { 26, 89, 131, 48, 92, 139, 111, 156},+ { 28, 89, 131, 53, 93, 147, 114, 163},+ { 31, 90, 131, 58, 94, 156, 117, 171},+ { 34, 90, 131, 62, 94, 163, 119, 177},+ { 37, 90, 132, 66, 95, 171, 122, 184},+ { 39, 90, 132, 70, 96, 177, 124, 189},+ { 42, 91, 132, 75, 97, 183, 127, 194},+ { 44, 91, 132, 79, 97, 188, 129, 198},+ { 47, 92, 133, 83, 98, 193, 132, 202},+ { 49, 92, 133, 86, 99, 197, 134, 205},+ { 52, 93, 133, 90, 100, 201, 137, 208},+ { 54, 93, 133, 94, 100, 204, 139, 211},+ { 57, 94, 134, 98, 101, 208, 142, 214},+ { 59, 94, 134, 101, 102, 211, 144, 216},+ { 62, 94, 135, 105, 103, 214, 146, 218},+ { 64, 94, 135, 108, 103, 216, 148, 220},+ { 66, 95, 135, 111, 104, 219, 151, 222},+ { 68, 95, 135, 114, 105, 221, 153, 223},+ { 71, 96, 136, 117, 106, 224, 155, 225},+ { 73, 96, 136, 120, 106, 225, 157, 226},+ { 76, 97, 136, 123, 107, 227, 159, 228},+ { 78, 97, 136, 126, 108, 229, 160, 229},+ { 80, 98, 137, 129, 109, 231, 162, 231},+ { 82, 98, 137, 131, 109, 232, 164, 232},+ { 84, 98, 138, 134, 110, 234, 166, 233},+ { 86, 98, 138, 137, 111, 235, 168, 234},+ { 89, 99, 138, 140, 112, 236, 170, 235},+ { 91, 99, 138, 142, 112, 237, 171, 235},+ { 93, 100, 139, 145, 113, 238, 173, 236},+ { 95, 100, 139, 147, 114, 239, 174, 237},+ { 97, 101, 140, 149, 115, 240, 176, 238},+ { 99, 101, 140, 151, 115, 241, 177, 238},+ {101, 102, 140, 154, 116, 242, 179, 239},+ {103, 102, 140, 156, 117, 242, 180, 239},+ {105, 103, 141, 158, 118, 243, 182, 240},+ {107, 103, 141, 160, 118, 243, 183, 240},+ {109, 104, 141, 162, 119, 244, 185, 241},+ {111, 104, 141, 164, 119, 244, 186, 241},+ {113, 104, 142, 166, 120, 245, 187, 242},+ {114, 104, 142, 168, 121, 245, 188, 242},+ {116, 105, 143, 170, 122, 246, 190, 243},+ {118, 105, 143, 171, 122, 246, 191, 243},+ {120, 106, 143, 173, 123, 247, 192, 244},+ {121, 106, 143, 175, 124, 247, 193, 244},+ {123, 107, 144, 177, 125, 248, 195, 244},+ {125, 107, 144, 178, 125, 248, 196, 244},+ {127, 108, 145, 180, 126, 249, 197, 245},+ {128, 108, 145, 181, 127, 249, 198, 245},+ {130, 109, 145, 183, 128, 249, 199, 245},+ {132, 109, 145, 184, 128, 249, 200, 245},+ {134, 110, 146, 186, 129, 250, 201, 246},+ {135, 110, 146, 187, 130, 250, 202, 246},+ {137, 111, 147, 189, 131, 251, 203, 246},+ {138, 111, 147, 190, 131, 251, 204, 246},+ {140, 112, 147, 192, 132, 251, 205, 247},+ {141, 112, 147, 193, 132, 251, 206, 247},+ {143, 113, 148, 194, 133, 251, 207, 247},+ {144, 113, 148, 195, 134, 251, 207, 247},+ {146, 114, 149, 197, 135, 252, 208, 248},+ {147, 114, 149, 198, 135, 252, 209, 248},+ {149, 115, 149, 199, 136, 252, 210, 248},+ {150, 115, 149, 200, 137, 252, 210, 248},+ {152, 115, 150, 201, 138, 252, 211, 248},+ {153, 115, 150, 202, 138, 252, 212, 248},+ {155, 116, 151, 204, 139, 253, 213, 249},+ {156, 116, 151, 205, 139, 253, 213, 249},+ {158, 117, 151, 206, 140, 253, 214, 249},+ {159, 117, 151, 207, 141, 253, 215, 249},+ {161, 118, 152, 208, 142, 253, 216, 249},+ {162, 118, 152, 209, 142, 253, 216, 249},+ {163, 119, 153, 210, 143, 253, 217, 249},+ {164, 119, 153, 211, 143, 253, 217, 249},+ {166, 120, 153, 212, 144, 254, 218, 250},+ {167, 120, 153, 212, 145, 254, 219, 250},+ {168, 121, 154, 213, 146, 254, 220, 250},+ {169, 121, 154, 214, 146, 254, 220, 250},+ {171, 122, 155, 215, 147, 254, 221, 250},+ {172, 122, 155, 216, 147, 254, 221, 250},+ {173, 123, 155, 217, 148, 254, 222, 250},+ {174, 123, 155, 217, 149, 254, 222, 250},+ {176, 124, 156, 218, 150, 254, 223, 250},+ {177, 124, 156, 219, 150, 254, 223, 250},+ {178, 125, 157, 220, 151, 254, 224, 251},+ {179, 125, 157, 220, 151, 254, 224, 251},+ {180, 126, 157, 221, 152, 254, 225, 251},+ {181, 126, 157, 221, 152, 254, 225, 251},+ {183, 127, 158, 222, 153, 254, 226, 251},+ {184, 127, 158, 223, 154, 254, 226, 251},+ {185, 128, 159, 224, 155, 255, 227, 251},+ {186, 128, 159, 224, 155, 255, 227, 251},+ {187, 129, 160, 225, 156, 255, 228, 251},+ {188, 130, 160, 225, 156, 255, 228, 251},+ {189, 131, 160, 226, 157, 255, 228, 251},+ {190, 131, 160, 226, 158, 255, 228, 251},+ {191, 132, 161, 227, 159, 255, 229, 251},+ {192, 132, 161, 227, 159, 255, 229, 251},+ {193, 133, 162, 228, 160, 255, 230, 252},+ {194, 133, 162, 229, 160, 255, 230, 252},+ {195, 134, 163, 230, 161, 255, 231, 252},+ {196, 134, 163, 230, 161, 255, 231, 252},+ {197, 135, 163, 231, 162, 255, 231, 252},+ {198, 135, 163, 231, 162, 255, 231, 252},+ {199, 136, 164, 232, 163, 255, 232, 252},+ {200, 136, 164, 232, 164, 255, 232, 252},+ {201, 137, 165, 233, 165, 255, 233, 252},+ {201, 137, 165, 233, 165, 255, 233, 252},+ {202, 138, 166, 233, 166, 255, 233, 252},+ {203, 138, 166, 233, 166, 255, 233, 252},+ {204, 139, 166, 234, 167, 255, 234, 252},+ {205, 139, 166, 234, 167, 255, 234, 252},+ {206, 140, 167, 235, 168, 255, 235, 252},+ {206, 140, 167, 235, 168, 255, 235, 252},+ {207, 141, 168, 236, 169, 255, 235, 252},+ {208, 141, 168, 236, 170, 255, 235, 252},+ {209, 142, 169, 237, 171, 255, 236, 252},+ {209, 143, 169, 237, 171, 255, 236, 252},+ {210, 144, 169, 237, 172, 255, 236, 252},+ {211, 144, 169, 237, 172, 255, 236, 252},+ {212, 145, 170, 238, 173, 255, 237, 252},+ {213, 145, 170, 238, 173, 255, 237, 252},+ {214, 146, 171, 239, 174, 255, 237, 253},+ {214, 146, 171, 239, 174, 255, 237, 253},+ {215, 147, 172, 240, 175, 255, 238, 253},+ {215, 147, 172, 240, 175, 255, 238, 253},+ {216, 148, 173, 240, 176, 255, 238, 253},+ {217, 148, 173, 240, 176, 255, 238, 253},+ {218, 149, 173, 241, 177, 255, 239, 253},+ {218, 149, 173, 241, 178, 255, 239, 253},+ {219, 150, 174, 241, 179, 255, 239, 253},+ {219, 151, 174, 241, 179, 255, 239, 253},+ {220, 152, 175, 242, 180, 255, 240, 253},+ {221, 152, 175, 242, 180, 255, 240, 253},+ {222, 153, 176, 242, 181, 255, 240, 253},+ {222, 153, 176, 242, 181, 255, 240, 253},+ {223, 154, 177, 243, 182, 255, 240, 253},+ {223, 154, 177, 243, 182, 255, 240, 253},+ {224, 155, 178, 244, 183, 255, 241, 253},+ {224, 155, 178, 244, 183, 255, 241, 253},+ {225, 156, 178, 244, 184, 255, 241, 253},+ {225, 157, 178, 244, 184, 255, 241, 253},+ {226, 158, 179, 244, 185, 255, 242, 253},+ {227, 158, 179, 244, 185, 255, 242, 253},+ {228, 159, 180, 245, 186, 255, 242, 253},+ {228, 159, 180, 245, 186, 255, 242, 253},+ {229, 160, 181, 245, 187, 255, 242, 253},+ {229, 160, 181, 245, 187, 255, 242, 253},+ {230, 161, 182, 246, 188, 255, 243, 253},+ {230, 162, 182, 246, 188, 255, 243, 253},+ {231, 163, 183, 246, 189, 255, 243, 253},+ {231, 163, 183, 246, 189, 255, 243, 253},+ {232, 164, 184, 247, 190, 255, 243, 253},+ {232, 164, 184, 247, 190, 255, 243, 253},+ {233, 165, 185, 247, 191, 255, 244, 253},+ {233, 165, 185, 247, 191, 255, 244, 253},+ {234, 166, 185, 247, 192, 255, 244, 253},+ {234, 167, 185, 247, 192, 255, 244, 253},+ {235, 168, 186, 248, 193, 255, 244, 253},+ {235, 168, 186, 248, 193, 255, 244, 253},+ {236, 169, 187, 248, 194, 255, 244, 253},+ {236, 169, 187, 248, 194, 255, 244, 253},+ {236, 170, 188, 248, 195, 255, 245, 253},+ {236, 170, 188, 248, 195, 255, 245, 253},+ {237, 171, 189, 249, 196, 255, 245, 254},+ {237, 172, 189, 249, 196, 255, 245, 254},+ {238, 173, 190, 249, 197, 255, 245, 254},+ {238, 173, 190, 249, 197, 255, 245, 254},+ {239, 174, 191, 249, 198, 255, 245, 254},+ {239, 174, 191, 249, 198, 255, 245, 254},+ {240, 175, 192, 249, 199, 255, 246, 254},+ {240, 176, 192, 249, 199, 255, 246, 254},+ {240, 177, 193, 250, 200, 255, 246, 254},+ {240, 177, 193, 250, 200, 255, 246, 254},+ {241, 178, 194, 250, 201, 255, 246, 254},+ {241, 178, 194, 250, 201, 255, 246, 254},+ {242, 179, 195, 250, 202, 255, 246, 254},+ {242, 180, 195, 250, 202, 255, 246, 254},+ {242, 181, 196, 250, 203, 255, 247, 254},+ {242, 181, 196, 250, 203, 255, 247, 254},+ {243, 182, 197, 251, 204, 255, 247, 254},+ {243, 183, 197, 251, 204, 255, 247, 254},+ {244, 184, 198, 251, 205, 255, 247, 254},+ {244, 184, 198, 251, 205, 255, 247, 254},+ {244, 185, 199, 251, 206, 255, 247, 254},+ {244, 185, 199, 251, 206, 255, 247, 254},+ {245, 186, 200, 251, 207, 255, 247, 254},+ {245, 187, 200, 251, 207, 255, 247, 254},+ {246, 188, 201, 252, 207, 255, 248, 254},+ {246, 188, 201, 252, 207, 255, 248, 254},+ {246, 189, 202, 252, 208, 255, 248, 254},+ {246, 190, 202, 252, 208, 255, 248, 254},+ {247, 191, 203, 252, 209, 255, 248, 254},+ {247, 191, 203, 252, 209, 255, 248, 254},+ {247, 192, 204, 252, 210, 255, 248, 254},+ {247, 193, 204, 252, 210, 255, 248, 254},+ {248, 194, 205, 252, 211, 255, 248, 254},+ {248, 194, 205, 252, 211, 255, 248, 254},+ {248, 195, 206, 252, 212, 255, 249, 254},+ {248, 196, 206, 252, 212, 255, 249, 254},+ {249, 197, 207, 253, 213, 255, 249, 254},+ {249, 197, 207, 253, 213, 255, 249, 254},+ {249, 198, 208, 253, 214, 255, 249, 254},+ {249, 199, 209, 253, 214, 255, 249, 254},+ {250, 200, 210, 253, 215, 255, 249, 254},+ {250, 200, 210, 253, 215, 255, 249, 254},+ {250, 201, 211, 253, 215, 255, 249, 254},+ {250, 202, 211, 253, 215, 255, 249, 254},+ {250, 203, 212, 253, 216, 255, 249, 254},+ {250, 203, 212, 253, 216, 255, 249, 254},+ {251, 204, 213, 253, 217, 255, 250, 254},+ {251, 205, 213, 253, 217, 255, 250, 254},+ {251, 206, 214, 254, 218, 255, 250, 254},+ {251, 206, 215, 254, 218, 255, 250, 254},+ {252, 207, 216, 254, 219, 255, 250, 254},+ {252, 208, 216, 254, 219, 255, 250, 254},+ {252, 209, 217, 254, 220, 255, 250, 254},+ {252, 210, 217, 254, 220, 255, 250, 254},+ {252, 211, 218, 254, 221, 255, 250, 254},+ {252, 212, 218, 254, 221, 255, 250, 254},+ {253, 213, 219, 254, 222, 255, 250, 254},+ {253, 213, 220, 254, 222, 255, 250, 254},+ {253, 214, 221, 254, 223, 255, 250, 254},+ {253, 215, 221, 254, 223, 255, 250, 254},+ {253, 216, 222, 254, 224, 255, 251, 254},+ {253, 217, 223, 254, 224, 255, 251, 254},+ {253, 218, 224, 254, 225, 255, 251, 254},+ {253, 219, 224, 254, 225, 255, 251, 254},+ {254, 220, 225, 254, 225, 255, 251, 254},+ {254, 221, 226, 254, 225, 255, 251, 254},+ {254, 222, 227, 255, 226, 255, 251, 254},+ {254, 223, 227, 255, 226, 255, 251, 254},+ {254, 224, 228, 255, 227, 255, 251, 254},+ {254, 225, 229, 255, 227, 255, 251, 254},+ {254, 226, 230, 255, 228, 255, 251, 254},+ {254, 227, 230, 255, 229, 255, 251, 254},+ {255, 228, 231, 255, 230, 255, 251, 254},+ {255, 229, 232, 255, 230, 255, 251, 254},+ {255, 230, 233, 255, 231, 255, 252, 254},+ {255, 231, 234, 255, 231, 255, 252, 254},+ {255, 232, 235, 255, 232, 255, 252, 254},+ {255, 233, 236, 255, 232, 255, 252, 254},+ {255, 235, 237, 255, 233, 255, 252, 254},+ {255, 236, 238, 255, 234, 255, 252, 254},+ {255, 238, 240, 255, 235, 255, 252, 255},+ {255, 239, 241, 255, 235, 255, 252, 254},+ {255, 241, 243, 255, 236, 255, 252, 254},+ {255, 243, 245, 255, 237, 255, 252, 254},+ {255, 246, 247, 255, 239, 255, 253, 255},};
static void extend_to_full_distribution(vp9_prob *probs, vp9_prob p) {--- a/vp9/common/vp9_entropy.h
+++ b/vp9/common/vp9_entropy.h
@@ -17,6 +17,7 @@
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_scan.h"
#include "vp9/common/vp9_treecoder.h"
+#include "vp9/common/vp9_entropymode.h"
#define DIFF_UPDATE_PROB 252
@@ -140,6 +141,9 @@
#define UNCONSTRAINED_NODES 3
#define PIVOT_NODE 2 // which node is pivot
+
+#define MODEL_NODES (ENTROPY_NODES - UNCONSTRAINED_NODES)
+extern const vp9_prob vp9_pareto8_full[255][MODEL_NODES];
typedef vp9_prob vp9_coeff_probs_model[REF_TYPES][COEF_BANDS]
[PREV_COEF_CONTEXTS]
--- a/vp9/decoder/vp9_detokenize.c
+++ b/vp9/decoder/vp9_detokenize.c
@@ -23,14 +23,14 @@
#define EOB_CONTEXT_NODE 0
#define ZERO_CONTEXT_NODE 1
#define ONE_CONTEXT_NODE 2
-#define LOW_VAL_CONTEXT_NODE 3
-#define TWO_CONTEXT_NODE 4
-#define THREE_CONTEXT_NODE 5
-#define HIGH_LOW_CONTEXT_NODE 6
-#define CAT_ONE_CONTEXT_NODE 7
-#define CAT_THREEFOUR_CONTEXT_NODE 8
-#define CAT_THREE_CONTEXT_NODE 9
-#define CAT_FIVE_CONTEXT_NODE 10
+#define LOW_VAL_CONTEXT_NODE 0
+#define TWO_CONTEXT_NODE 1
+#define THREE_CONTEXT_NODE 2
+#define HIGH_LOW_CONTEXT_NODE 3
+#define CAT_ONE_CONTEXT_NODE 4
+#define CAT_THREEFOUR_CONTEXT_NODE 5
+#define CAT_THREE_CONTEXT_NODE 6
+#define CAT_FIVE_CONTEXT_NODE 7
#define CAT1_MIN_VAL 5
#define CAT2_MIN_VAL 7
@@ -76,14 +76,16 @@
#define WRITE_COEF_CONTINUE(val, token) \
{ \- dqcoeff_ptr[scan[c]] = (vp9_read_bit(r) ? -val : val) * \
- dq[c > 0] / (1 + (tx_size == TX_32X32)); \
+ v = (val * dqv) >> dq_shift; \
+ dqcoeff_ptr[scan[c]] = (vp9_read_bit(r) ? -v : v); \
INCREMENT_COUNT(token); \
token_cache[scan[c]] = vp9_pt_energy_class[token]; \
++c; \
+ dqv = dq[1]; \
continue; \
}
+
#define ADJUST_COEF(prob, bits_count) \
do { \val += (vp9_read(r, prob) << bits_count); \
@@ -100,8 +102,6 @@
int band, c = 0;
const vp9_prob (*coef_probs)[PREV_COEF_CONTEXTS][UNCONSTRAINED_NODES] =
fc->coef_probs[tx_size][type][ref];
- vp9_prob coef_probs_full[COEF_BANDS][PREV_COEF_CONTEXTS][ENTROPY_NODES];
- uint8_t load_map[COEF_BANDS][PREV_COEF_CONTEXTS] = { { 0 } };const vp9_prob *prob;
unsigned int (*coef_counts)[PREV_COEF_CONTEXTS][UNCONSTRAINED_NODES + 1] =
counts->coef[tx_size][type][ref];
@@ -110,9 +110,12 @@
const int16_t *scan, *nb;
const uint8_t *cat6;
const uint8_t *band_translate = get_band_translate(tx_size);
+ const int dq_shift = (tx_size == TX_32X32);
const MODE_INFO *const mi = xd->mi_8x8[0];
const MB_MODE_INFO *const mbmi = &mi->mbmi;
scan_order const *so;
+ int v;
+ int16_t dqv = dq[0];
if (mbmi->ref_frame[0] > 0 || type != PLANE_TYPE_Y_WITH_DC || xd->lossless) {so = &inter_scan_orders[tx_size];
@@ -148,6 +151,7 @@
if (!vp9_read(r, prob[ZERO_CONTEXT_NODE])) {INCREMENT_COUNT(ZERO_TOKEN);
token_cache[scan[c]] = vp9_pt_energy_class[ZERO_TOKEN];
+ dqv = dq[1]; \
++c;
goto SKIP_START;
}
@@ -156,13 +160,9 @@
if (!vp9_read(r, prob[ONE_CONTEXT_NODE])) {WRITE_COEF_CONTINUE(1, ONE_TOKEN);
}
- // Load full probabilities if not already loaded
- if (!load_map[band][pt]) {- vp9_model_to_full_probs(coef_probs[band][pt],
- coef_probs_full[band][pt]);
- load_map[band][pt] = 1;
- }
- prob = coef_probs_full[band][pt];
+
+ prob = vp9_pareto8_full[coef_probs[band][pt][PIVOT_NODE]-1];
+
// LOW_VAL_CONTEXT_NODE_0_
if (!vp9_read(r, prob[LOW_VAL_CONTEXT_NODE])) { if (!vp9_read(r, prob[TWO_CONTEXT_NODE])) {