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New default coefficient/band probabilities. 

Gives 0.5-0.6% improvement on derf and stdhd, and 1.1% on hd. The
old tables basically derive from times that we had only 4x4 or
only 4x4 and 8x8 DCTs.

Note that some values are filled with 128, because e.g. ADST ever
only occurs as Y-with-DC, as does 32x32; 16x16 ever only occurs
as Y-with-DC or as UV (as complement of 32x32 Y); and 8x8 Y2 ever
only has 4 coefficients max. If preferred, I can add values of
other tables in their place (e.g. use 4x4 2nd order high-frequency
probabilities for 8x8 2nd order), so that they make at least some
sense if we ever implement a larger 2nd order transform for the
8x8 DCT (etc.), please let me know

Change-Id: I917db356f2aff8865f528eb873c56ef43aa5ce22
This commit is contained in:
Ronald S. Bultje 2012-12-12 10:25:58 -08:00
Родитель 4d0ec7aacd
Коммит 5a5df19de3
2 изменённых файлов: 1167 добавлений и 1309 удалений
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2415
vp9/common/vp9_default_coef_probs.h
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25
vp9/encoder/vp9_tokenize.c
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@ -609,14 +609,17 @@ static void print_probs(FILE *f, vp9_coeff_accum *context_counters,
int block_types, const char *header) {
int type, band, pt, t;
fprintf(f, "static const vp9_coeff_probs %s = {\n", header);
fprintf(f, "static const vp9_coeff_probs %s = {", header);
type = 0;
#define Newline(x, spaces) (x ? " " : "\n" spaces)
do {
fprintf(f, "%s\n { /* block Type %d */", Comma(type), type);
fprintf(f, "%s%s{ /* block Type %d */",
Comma(type), Newline(type, " "), type);
band = 0;
do {
fprintf(f, "%s\n { /* Coeff Band %d */", Comma(band), band);
fprintf(f, "%s%s{ /* Coeff Band %d */",
Comma(band), Newline(band, " "), band);
pt = 0;
do {
unsigned int branch_ct[ENTROPY_NODES][2];
@ -632,7 +635,7 @@ static void print_probs(FILE *f, vp9_coeff_accum *context_counters,
t = 0;
do {
fprintf(f, "%s %d", Comma(t), coef_probs[t]);
fprintf(f, "%s %3d", Comma(t), coef_probs[t]);
} while (++t < ENTROPY_NODES);
fprintf(f, " }");
@ -670,20 +673,20 @@ void print_context_counters() {
/* print coefficient probabilities */
print_probs(f, context_counters_4x4, BLOCK_TYPES_4X4,
"vp9_default_coef_probs_4x4[BLOCK_TYPES_4X4]");
"default_coef_probs_4x4[BLOCK_TYPES_4X4]");
print_probs(f, hybrid_context_counters_4x4, BLOCK_TYPES_4X4,
"vp9_default_hybrid_coef_probs_4x4[BLOCK_TYPES_4X4]");
"default_hybrid_coef_probs_4x4[BLOCK_TYPES_4X4]");
print_probs(f, context_counters_8x8, BLOCK_TYPES_8X8,
"vp9_default_coef_probs_8x8[BLOCK_TYPES_8X8]");
"default_coef_probs_8x8[BLOCK_TYPES_8X8]");
print_probs(f, hybrid_context_counters_8x8, BLOCK_TYPES_8X8,
"vp9_default_hybrid_coef_probs_8x8[BLOCK_TYPES_8X8]");
"default_hybrid_coef_probs_8x8[BLOCK_TYPES_8X8]");
print_probs(f, context_counters_16x16, BLOCK_TYPES_16X16,
"vp9_default_coef_probs_16x16[BLOCK_TYPES_16X16]");
"default_coef_probs_16x16[BLOCK_TYPES_16X16]");
print_probs(f, hybrid_context_counters_16x16, BLOCK_TYPES_16X16,
"vp9_default_hybrid_coef_probs_16x16[BLOCK_TYPES_16X16]");
"default_hybrid_coef_probs_16x16[BLOCK_TYPES_16X16]");
#if CONFIG_TX32X32
print_probs(f, context_counters_32x32, BLOCK_TYPES_32X32,
"vp9_default_coef_probs_32x32[BLOCK_TYPES_32X32]");
"default_coef_probs_32x32[BLOCK_TYPES_32X32]");
#endif
fclose(f);