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Update 8x8 tokenizer to not encode an EOB if seg_eob is active.

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Change-Id: Id2bac0597b6dd1ce41bd78cbd9e9d876b71cd8a2
This commit is contained in:
Daniel Kang
2012-07-23 14:58:07 -07:00
parent 6f6856839b
commit bd3a9f1346
1 changed files with 22 additions and 23 deletions
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37
vp8/encoder/tokenize.c
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@@ -250,48 +250,47 @@ static void tokenize1st_order_b_8x8
) { ) {
int pt; /* near block/prev token context index */ int pt; /* near block/prev token context index */
int c = type ? 0 : 1; /* start at DC unless type 0 */ int c = type ? 0 : 1; /* start at DC unless type 0 */
const int eob = b->eob; /* one beyond last nonzero coeff */
TOKENEXTRA *t = *tp; /* store tokens starting here */ TOKENEXTRA *t = *tp; /* store tokens starting here */
int x;
const short *qcoeff_ptr = b->qcoeff; const short *qcoeff_ptr = b->qcoeff;
int seg_eob = 64; int seg_eob = 64;
int segment_id = xd->mode_info_context->mbmi.segment_id; int segment_id = xd->mode_info_context->mbmi.segment_id;
if (segfeature_active(xd, segment_id, SEG_LVL_EOB)) { if (segfeature_active(xd, segment_id, SEG_LVL_EOB))
seg_eob = get_segdata(xd, segment_id, SEG_LVL_EOB); seg_eob = get_segdata(xd, segment_id, SEG_LVL_EOB);
}
VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l); VP8_COMBINEENTROPYCONTEXTS(pt, *a, *l);
do { for (; c < b->eob; ++c) {
const int band = vp8_coef_bands_8x8[c]; const int band = vp8_coef_bands_8x8[c];
int v;
x = DCT_EOB_TOKEN;
if (c < eob) {
int rc = vp8_default_zig_zag1d_8x8[c]; int rc = vp8_default_zig_zag1d_8x8[c];
v = qcoeff_ptr[rc]; int v = qcoeff_ptr[rc], x;
assert(-DCT_MAX_VALUE <= v && v < (DCT_MAX_VALUE)); assert(-DCT_MAX_VALUE <= v && v < (DCT_MAX_VALUE));
t->Extra = vp8_dct_value_tokens_ptr[v].Extra; t->Extra = vp8_dct_value_tokens_ptr[v].Extra;
x = vp8_dct_value_tokens_ptr[v].Token; x = vp8_dct_value_tokens_ptr[v].Token;
}
t->Token = x; t->Token = x;
t->context_tree = cpi->common.fc.coef_probs_8x8[type][band][pt]; t->context_tree = cpi->common.fc.coef_probs_8x8[type][band][pt];
t->skip_eob_node = pt == 0 && ((band > 0 && type > 0) || (band > 1 && type == 0)); t->skip_eob_node = pt == 0 && ((band > 0 && type > 0) || (band > 1 && type == 0));
#ifdef ENC_DEBUG
if (t->skip_eob_node && vp8_coef_encodings[x].Len == 1)
printf("Trouble 1 x=%d Len=%d skip=%d eob=%d c=%d band=%d type=%d: [%d %d %d]\n", x, vp8_coef_encodings[x].Len, t->skip_eob_node, eob, c, band, type, cpi->count, mb_row_debug, mb_col_debug);
#endif
++cpi->coef_counts_8x8[type][band][pt][x]; ++cpi->coef_counts_8x8[type][band][pt][x];
} while (pt = vp8_prev_token_class[x], ++t, c < eob && ++c < seg_eob);
pt = vp8_prev_token_class[x];
++t;
}
if (c < seg_eob) {
const int band = vp8_coef_bands_8x8[c];
t->Token = DCT_EOB_TOKEN;
t->context_tree = cpi->common.fc.coef_probs_8x8 [type] [band] [pt];
t->skip_eob_node = pt == 0 && ((band > 0 && type > 0) || (band > 1 && type == 0));
++cpi->coef_counts_8x8[type][band][pt][DCT_EOB_TOKEN];
++t;
}
*tp = t; *tp = t;
pt = (c != !type); /* 0 <-> all coeff data is zero */ pt = (c != !type); /* 0 <-> all coeff data is zero */