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correct logic in cnvcontext experiment for tx32x32

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Change-Id: I004ded11983b7fda85793912ebc5c6f266dc5eb5
This commit is contained in:
Yaowu Xu 2012-12-18 11:25:24 -08:00
parent 1306ba7659
commit de269c8a62
2 changed files with 95 additions and 40 deletions
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50
vp9/decoder/vp9_detokenize.c
View File

@ -252,45 +252,65 @@ int vp9_decode_sb_tokens(VP9D_COMP* const pbi,
BOOL_DECODER* const bc) {
ENTROPY_CONTEXT* const A = (ENTROPY_CONTEXT *)xd->above_context;
ENTROPY_CONTEXT* const L = (ENTROPY_CONTEXT *)xd->left_context;
ENTROPY_CONTEXT* const A1 = (ENTROPY_CONTEXT *)(&xd->above_context[1]);
ENTROPY_CONTEXT* const L1 = (ENTROPY_CONTEXT *)(&xd->left_context[1]);
unsigned short* const eobs = xd->eobs;
const int segment_id = xd->mode_info_context->mbmi.segment_id;
int c, i, eobtotal = 0, seg_eob;
// Luma block
eobs[0] = c = decode_coefs(pbi, xd, bc, A, L, PLANE_TYPE_Y_WITH_DC,
#if CONFIG_CNVCONTEXT
ENTROPY_CONTEXT above_ec = (A[0] + A[1] + A[2] + A[3] +
A1[0] + A1[1] + A1[2] + A1[3]) != 0;
ENTROPY_CONTEXT left_ec = (L[0] + L[1] + L[2] + L[3] +
L1[0] + L1[1] + L1[2] + L1[3]) != 0;
#else
ENTROPY_CONTEXT above_ec = A[0];
ENTROPY_CONTEXT left_ec = L[0];
#endif
eobs[0] = c = decode_coefs(pbi, xd, bc, &above_ec, &left_ec,
PLANE_TYPE_Y_WITH_DC,
DCT_DCT, get_eob(xd, segment_id, 1024),
xd->sb_coeff_data.qcoeff,
vp9_default_zig_zag1d_32x32,
TX_32X32, vp9_coef_bands_32x32);
A[1] = A[2] = A[3] = A[0];
L[1] = L[2] = L[3] = L[0];
A[1] = A[2] = A[3] = A[0] = above_ec;
L[1] = L[2] = L[3] = L[0] = left_ec;
A1[1] = A1[2] = A1[3] = A1[0] = above_ec;
L1[1] = L1[2] = L1[3] = L1[0] = left_ec;
eobtotal += c;
// 16x16 chroma blocks
seg_eob = get_eob(xd, segment_id, 256);
for (i = 16; i < 24; i += 4) {
ENTROPY_CONTEXT* const a = A + vp9_block2above[TX_16X16][i];
ENTROPY_CONTEXT* const l = L + vp9_block2left[TX_16X16][i];
ENTROPY_CONTEXT* const a1 = A1 + vp9_block2above[TX_16X16][i];
ENTROPY_CONTEXT* const l1 = L1 + vp9_block2left[TX_16X16][i];
#if CONFIG_CNVCONTEXT
above_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
left_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
#else
above_ec = a[0];
left_ec = l[0];
#endif
eobs[i] = c = decode_coefs(pbi, xd, bc, a, l, PLANE_TYPE_UV,
eobs[i] = c = decode_coefs(pbi, xd, bc,
&above_ec, &left_ec,
PLANE_TYPE_UV,
DCT_DCT, seg_eob,
xd->sb_coeff_data.qcoeff + 1024 + (i - 16) * 64,
vp9_default_zig_zag1d_16x16,
TX_16X16, vp9_coef_bands_16x16);
a[1] = a[0];
l[1] = l[0];
a1[1] = a1[0] = a[1] = a[0] = above_ec;
l1[1] = l1[0] = l[1] = l[0] = left_ec;
eobtotal += c;
}
// no Y2 block
vpx_memset(&A[8], 0, sizeof(A[8]));
vpx_memset(&L[8], 0, sizeof(L[8]));
vpx_memcpy(xd->above_context + 1, xd->above_context,
sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(xd->left_context + 1, xd->left_context,
sizeof(ENTROPY_CONTEXT_PLANES));
A[8] = L[8] = A1[8] = L1[8] = 0;
return eobtotal;
}
#endif

85
vp9/encoder/vp9_tokenize.c
View File

@ -130,6 +130,14 @@ static void tokenize_b(VP9_COMP *cpi,
vp9_block2left[tx_size][ib];
ENTROPY_CONTEXT a_ec = *a, l_ec = *l;
#if CONFIG_SUPERBLOCKS && CONFIG_TX32X32
ENTROPY_CONTEXT *const a1 = (ENTROPY_CONTEXT *)(&xd->above_context[1]) +
vp9_block2above[tx_size][ib];
ENTROPY_CONTEXT *const l1 = (ENTROPY_CONTEXT *)(&xd->left_context[1]) +
vp9_block2left[tx_size][ib];
#endif
switch (tx_size) {
default:
case TX_4X4:
@ -176,6 +184,11 @@ static void tokenize_b(VP9_COMP *cpi,
if (type != PLANE_TYPE_UV) {
a_ec = (a[0] + a[1] + a[2] + a[3]) != 0;
l_ec = (l[0] + l[1] + l[2] + l[3]) != 0;
#if CONFIG_SUPERBLOCKS && CONFIG_TX32X32
} else {
a_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
l_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
#endif
}
#endif
seg_eob = 256;
@ -197,6 +210,14 @@ static void tokenize_b(VP9_COMP *cpi,
break;
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
case TX_32X32:
#if CONFIG_CNVCONTEXT
a_ec = a[0] + a[1] + a[2] + a[3] +
a1[0] + a1[1] + a1[2] + a1[3];
l_ec = l[0] + l[1] + l[2] + l[3] +
l1[0] + l1[1] + l1[2] + l1[3];
a_ec = a_ec != 0;
l_ec = l_ec != 0;
#endif
seg_eob = 1024;
bands = vp9_coef_bands_32x32;
scan = vp9_default_zig_zag1d_32x32;
@ -253,10 +274,17 @@ static void tokenize_b(VP9_COMP *cpi,
l[1] = l[2] = l[3] = l_ec;
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
} else {
a[1] = a_ec;
l[1] = l_ec;
a1[0] = a1[1] = a[1] = a_ec;
l1[0] = l1[1] = l[1] = l_ec;
#endif
}
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
} else if (tx_size == TX_32X32) {
a[1] = a[2] = a[3] = a_ec;
l[1] = l[2] = l[3] = l_ec;
a1[0] = a1[1] = a1[2] = a1[3] = a_ec;
l1[0] = l1[1] = l1[2] = l1[3] = l_ec;
#endif
}
}
@ -381,18 +409,12 @@ void vp9_tokenize_sb(VP9_COMP *cpi,
tokenize_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC,
TX_32X32, dry_run);
A[0][1] = A[0][2] = A[0][3] = A[0][0];
L[0][1] = L[0][2] = L[0][3] = L[0][0];
for (b = 16; b < 24; b += 4) {
tokenize_b(cpi, xd, b, t, PLANE_TYPE_UV,
TX_16X16, dry_run);
}
vpx_memset(&A[0][8], 0, sizeof(A[0][8]));
vpx_memset(&L[0][8], 0, sizeof(L[0][8]));
vpx_memcpy(A[1], A[0], sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(L[1], L[0], sizeof(ENTROPY_CONTEXT_PLANES));
A[0][8] = L[0][8] = A[1][8] = L[1][8] = 0;
if (dry_run)
*t = t_backup;
}
@ -425,6 +447,7 @@ void vp9_tokenize_mb(VP9_COMP *cpi,
switch (tx_size) {
case TX_16X16:
xd->mode_info_context->mbmi.mb_skip_coeff = mb_is_skippable_16x16(xd);
break;
case TX_8X8:
@ -499,7 +522,6 @@ void vp9_tokenize_mb(VP9_COMP *cpi,
*t = t_backup;
}
#ifdef ENTROPY_STATS
void init_context_counters(void) {
FILE *f = fopen("context.bin", "rb");
@ -719,12 +741,17 @@ static __inline void stuff_b(VP9_COMP *cpi,
TOKENEXTRA *t = *tp;
const TX_TYPE tx_type = (type == PLANE_TYPE_Y_WITH_DC) ?
get_tx_type(xd, b) : DCT_DCT;
ENTROPY_CONTEXT *const a = (ENTROPY_CONTEXT *)xd->above_context +
vp9_block2above[tx_size][ib];
ENTROPY_CONTEXT *const l = (ENTROPY_CONTEXT *)xd->left_context +
vp9_block2left[tx_size][ib];
ENTROPY_CONTEXT a_ec = *a, l_ec = *l;
#if CONFIG_SUPERBLOCKS && CONFIG_TX32X32
ENTROPY_CONTEXT *const a1 = (ENTROPY_CONTEXT *)(&xd->above_context[1]) +
vp9_block2above[tx_size][ib];
ENTROPY_CONTEXT *const l1 = (ENTROPY_CONTEXT *)(&xd->left_context[1]) +
vp9_block2left[tx_size][ib];
#endif
switch (tx_size) {
default:
@ -759,6 +786,11 @@ static __inline void stuff_b(VP9_COMP *cpi,
if (type != PLANE_TYPE_UV) {
a_ec = (a[0] + a[1] + a[2] + a[3]) != 0;
l_ec = (l[0] + l[1] + l[2] + l[3]) != 0;
#if CONFIG_SUPERBLOCKS && CONFIG_TX32X32
} else {
a_ec = (a[0] + a[1] + a1[0] + a1[1]) != 0;
l_ec = (l[0] + l[1] + l1[0] + l1[1]) != 0;
#endif
}
#endif
bands = vp9_coef_bands_16x16;
@ -772,6 +804,14 @@ static __inline void stuff_b(VP9_COMP *cpi,
break;
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
case TX_32X32:
#if CONFIG_CNVCONTEXT
a_ec = a[0] + a[1] + a[2] + a[3] +
a1[0] + a1[1] + a1[2] + a1[3];
l_ec = l[0] + l[1] + l[2] + l[3] +
l1[0] + l1[1] + l1[2] + l1[3];
a_ec = a_ec != 0;
l_ec = l_ec != 0;
#endif
bands = vp9_coef_bands_32x32;
counts = cpi->coef_counts_32x32;
probs = cpi->common.fc.coef_probs_32x32;
@ -797,10 +837,17 @@ static __inline void stuff_b(VP9_COMP *cpi,
l[1] = l[2] = l[3] = 0;
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
} else {
a[1] = 0;
l[1] = 0;
a1[0] = a1[1] = a[1] = a_ec;
l1[0] = l1[1] = l[1] = l_ec;
#endif
}
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
} else if (tx_size == TX_32X32) {
a[1] = a[2] = a[3] = a_ec;
l[1] = l[2] = l[3] = l_ec;
a1[0] = a1[1] = a1[2] = a1[3] = a_ec;
l1[0] = l1[1] = l1[2] = l1[3] = l_ec;
#endif
}
if (!dry_run) {
@ -917,24 +964,12 @@ void vp9_stuff_mb(VP9_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run) {
#if CONFIG_TX32X32 && CONFIG_SUPERBLOCKS
static void stuff_sb_32x32(VP9_COMP *cpi, MACROBLOCKD *xd,
TOKENEXTRA **t, int dry_run) {
ENTROPY_CONTEXT *A[2] = { (ENTROPY_CONTEXT *) (xd->above_context + 0),
(ENTROPY_CONTEXT *) (xd->above_context + 1), };
ENTROPY_CONTEXT *L[2] = { (ENTROPY_CONTEXT *) (xd->left_context + 0),
(ENTROPY_CONTEXT *) (xd->left_context + 1), };
int b;
stuff_b(cpi, xd, 0, t, PLANE_TYPE_Y_WITH_DC, TX_32X32, dry_run);
A[0][1] = A[0][2] = A[0][3] = A[0][0];
L[0][1] = L[0][2] = L[0][3] = L[0][0];
for (b = 16; b < 24; b += 4) {
stuff_b(cpi, xd, b, t, PLANE_TYPE_UV, TX_16X16, dry_run);
A[0][vp9_block2above[TX_16X16][b] + 1] = A[0][vp9_block2above[TX_16X16][b]];
L[0][vp9_block2left[TX_16X16][b] + 1] = L[0][vp9_block2left[TX_16X16][b]];
}
vpx_memset(&A[0][8], 0, sizeof(A[0][8]));
vpx_memset(&L[0][8], 0, sizeof(L[0][8]));
vpx_memcpy(A[1], A[0], sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(L[1], L[0], sizeof(ENTROPY_CONTEXT_PLANES));
}
void vp9_stuff_sb(VP9_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run) {