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Fix 4x4 intra prediction on the edge of SB rows.

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Change-Id: I87d571008c73f0a8514e0a864405aadb82fd1bc0
This commit is contained in:
Ronald S. Bultje 2012-10-25 12:05:37 -07:00
parent 2c4f616a61
commit fbf2ac111e
5 changed files with 15 additions and 10 deletions
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6
vp8/common/reconintra4x4.c
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@ -295,7 +295,7 @@ void vp8_comp_intra4x4_predict_c(BLOCKD *x,
/* copy 4 bytes from the above right down so that the 4x4 prediction modes using pixels above and
* to the right prediction have filled in pixels to use.
*/
void vp8_intra_prediction_down_copy(MACROBLOCKD *xd) {
void vp8_intra_prediction_down_copy(MACROBLOCKD *xd, int extend_edge) {
unsigned char *above_right = *(xd->block[0].base_dst) + xd->block[0].dst -
xd->block[0].dst_stride + 16;
unsigned int *src_ptr = (unsigned int *)
@ -309,6 +309,10 @@ void vp8_intra_prediction_down_copy(MACROBLOCKD *xd) {
unsigned int *dst_ptr3 =
(unsigned int *)(above_right + 12 * xd->block[0].dst_stride);
if (extend_edge) {
*src_ptr = ((uint8_t *) src_ptr)[-1] * 0x01010101U;
}
*dst_ptr0 = *src_ptr;
*dst_ptr1 = *src_ptr;
*dst_ptr2 = *src_ptr;

2
vp8/common/reconintra4x4.h
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@ -12,6 +12,6 @@
#ifndef __INC_RECONINTRA4x4_H
#define __INC_RECONINTRA4x4_H
extern void vp8_intra_prediction_down_copy(MACROBLOCKD *xd);
extern void vp8_intra_prediction_down_copy(MACROBLOCKD *xd, int extend_edge);
#endif

9
vp8/decoder/decodframe.c
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@ -202,15 +202,15 @@ static void skip_recon_mb(VP8D_COMP *pbi, MACROBLOCKD *xd) {
}
static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
unsigned int mb_col,
int mb_row, unsigned int mb_col,
BOOL_DECODER* const bc) {
int eobtotal = 0;
MB_PREDICTION_MODE mode;
int i;
int tx_size;
TX_TYPE tx_type;
#if CONFIG_SUPERBLOCKS
VP8_COMMON *pc = &pbi->common;
#if CONFIG_SUPERBLOCKS
int orig_skip_flag = xd->mode_info_context->mbmi.mb_skip_coeff;
#endif
@ -355,7 +355,8 @@ static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
b->dst_stride);
}
} else if (mode == B_PRED) {
vp8_intra_prediction_down_copy(xd);
vp8_intra_prediction_down_copy(xd, mb_col == pc->mb_cols - 1 &&
!(mb_row & 1));
for (i = 0; i < 16; i++) {
BLOCKD *b = &xd->block[i];
int b_mode = xd->mode_info_context->bmi[i].as_mode.first;
@ -659,7 +660,7 @@ decode_sb_row(VP8D_COMP *pbi, VP8_COMMON *pc, int mbrow, MACROBLOCKD *xd,
mi[pc->mode_info_stride + 1] = mi[0];
}
#endif
decode_macroblock(pbi, xd, mb_col, bc);
decode_macroblock(pbi, xd, mb_row, mb_col, bc);
#if CONFIG_SUPERBLOCKS
if (xd->mode_info_context->mbmi.encoded_as_sb) {
mi[1].mbmi.txfm_size = mi[0].mbmi.txfm_size;

6
vp8/encoder/encodeframe.c
View File

@ -19,6 +19,7 @@
#include "vp8/common/quant_common.h"
#include "segmentation.h"
#include "vp8/common/setupintrarecon.h"
#include "vp8/common/reconintra4x4.h"
#include "encodeintra.h"
#include "vp8/common/reconinter.h"
#include "vp8/common/invtrans.h"
@ -614,6 +615,9 @@ static void pick_mb_modes(VP8_COMP *cpi,
cpi->update_context = 0; // TODO Do we need this now??
vp8_intra_prediction_down_copy(xd, mb_col == cm->mb_cols - 1 &&
(mb_row & 1) == 0);
// Find best coding mode & reconstruct the MB so it is available
// as a predictor for MBs that follow in the SB
if (cm->frame_type == KEY_FRAME) {
@ -1911,7 +1915,6 @@ void vp8cx_encode_intra_macro_block(VP8_COMP *cpi,
vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x);
} else if (mbmi->mode == B_PRED) {
vp8_intra_prediction_down_copy(&x->e_mbd);
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
} else {
vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
@ -2009,7 +2012,6 @@ void vp8cx_encode_inter_macroblock (VP8_COMP *cpi, MACROBLOCK *x,
if (mbmi->ref_frame == INTRA_FRAME) {
if (mbmi->mode == B_PRED) {
vp8_intra_prediction_down_copy(xd);
vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x);
vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x);
} else if (mbmi->mode == I8X8_PRED) {

2
vp8/encoder/rdopt.c
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@ -1212,8 +1212,6 @@ static int64_t rd_pick_intra4x4mby_modes(VP8_COMP *cpi, MACROBLOCK *mb, int *Rat
xd->mode_info_context->mbmi.mode = B_PRED;
bmode_costs = mb->inter_bmode_costs;
vp8_intra_prediction_down_copy(xd);
for (i = 0; i < 16; i++) {
MODE_INFO *const mic = xd->mode_info_context;
const int mis = xd->mode_info_stride;