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Change to do LPF in SB64 order

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Change-Id: I41b3f5932ecd6256e8207369ad19aa81e7987be1
This commit is contained in:
Yaowu Xu 2013-04-10 17:43:58 -07:00
parent 90a91cc683
commit cb3192b72c
1 changed files with 380 additions and 167 deletions
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547
vp9/common/vp9_loopfilter.c
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@ -194,25 +194,213 @@ static int mb_lf_skip(const MB_MODE_INFO *const mbmi) {
static int sb_mb_lf_skip(const MODE_INFO *const mip0,
const MODE_INFO *const mip1) {
const MB_MODE_INFO *mbmi0 = &mip0->mbmi;
const MB_MODE_INFO *mbmi1 = &mip0->mbmi;
const MB_MODE_INFO *mbmi1 = &mip1->mbmi;
return mb_lf_skip(mbmi0) && mb_lf_skip(mbmi1) &&
(mbmi0->ref_frame == mbmi1->ref_frame) &&
(mbmi0->mv[mbmi0->ref_frame].as_int ==
mbmi1->mv[mbmi1->ref_frame].as_int) &&
mbmi0->ref_frame != INTRA_FRAME;
mbmi0->ref_frame != INTRA_FRAME &&
mbmi1->ref_frame != INTRA_FRAME;
}
static void lpf_mb(VP9_COMMON *cm, const MODE_INFO *mi,
int do_left_mb_v, int do_above_mb_h,
int do_left_mbuv_v, int do_above_mbuv_h,
uint8_t *y_ptr, uint8_t *u_ptr, uint8_t *v_ptr,
int y_stride, int uv_stride, int dering) {
loop_filter_info_n *lfi_n = &cm->lf_info;
struct loop_filter_info lfi;
const FRAME_TYPE frame_type = cm->frame_type;
int mode = mi->mbmi.mode;
int mode_index = lfi_n->mode_lf_lut[mode];
int seg = mi->mbmi.segment_id;
int ref_frame = mi->mbmi.ref_frame;
int filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
if (filter_level) {
const int skip_lf = mb_lf_skip(&mi->mbmi);
const int tx_size = mi->mbmi.txfm_size;
if (cm->filter_type == NORMAL_LOOPFILTER) {
const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
lfi.mblim = lfi_n->mblim[filter_level];
lfi.blim = lfi_n->blim[filter_level];
lfi.lim = lfi_n->lim[filter_level];
lfi.hev_thr = lfi_n->hev_thr[hev_index];
if (do_above_mb_h) {
if (tx_size >= TX_16X16)
vp9_lpf_mbh_w(y_ptr,
do_above_mbuv_h ? u_ptr : NULL,
do_above_mbuv_h ? v_ptr : NULL,
y_stride, uv_stride, &lfi);
else
vp9_loop_filter_mbh(y_ptr, u_ptr, v_ptr, y_stride, uv_stride, &lfi);
}
if (!skip_lf) {
if (tx_size >= TX_8X8) {
if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
vp9_loop_filter_bh8x8(y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, &lfi);
else
vp9_loop_filter_bh8x8(y_ptr, NULL, NULL,
y_stride, uv_stride, &lfi);
} else {
vp9_loop_filter_bh(y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, &lfi);
}
}
if (do_left_mb_v) {
if (tx_size >= TX_16X16)
vp9_lpf_mbv_w(y_ptr,
do_left_mbuv_v ? u_ptr : NULL,
do_left_mbuv_v ? v_ptr : NULL,
y_stride, uv_stride, &lfi);
else
vp9_loop_filter_mbv(y_ptr, u_ptr, v_ptr, y_stride, uv_stride, &lfi);
}
if (!skip_lf) {
if (tx_size >= TX_8X8) {
if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
vp9_loop_filter_bv8x8(y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, &lfi);
else
vp9_loop_filter_bv8x8(y_ptr, NULL, NULL,
y_stride, uv_stride, &lfi);
} else {
vp9_loop_filter_bv(y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, &lfi);
}
}
if (dering) {
#if CONFIG_LOOP_DERING
vp9_post_proc_down_and_across(y_ptr, y_ptr,
y_stride, y_stride,
16, 16, dering);
if (u_ptr && v_ptr) {
vp9_post_proc_down_and_across(u_ptr, u_ptr,
uv_stride, uv_stride,
8, 8, dering);
vp9_post_proc_down_and_across(v_ptr, v_ptr,
uv_stride, uv_stride,
8, 8, dering);
}
#endif
}
} else {
// TODO(yaowu): simple loop filter
}
}
}
static void lpf_sb32(VP9_COMMON *cm, const MODE_INFO *mode_info_context,
int mb_row, int mb_col,
uint8_t *y_ptr, uint8_t *u_ptr, uint8_t *v_ptr,
int y_stride, int uv_stride,
int y_only, int dering) {
BLOCK_SIZE_TYPE sb_type = mode_info_context->mbmi.sb_type;
TX_SIZE tx_size = mode_info_context->mbmi.txfm_size;
int do_left_v, do_above_h;
int do_left_v_mbuv, do_above_h_mbuv;
int mis = cm->mode_info_stride;
const MODE_INFO *mi;
// process 1st MB top-left
mi = mode_info_context;
do_left_v = (mb_col > 0);
do_above_h = (mb_row > 0);
do_left_v_mbuv = !(sb_type >= BLOCK_SIZE_SB64X64 &&
tx_size >= TX_32X32 && (mb_col & 2));
do_above_h_mbuv = !(sb_type >= BLOCK_SIZE_SB64X64 &&
tx_size >= TX_32X32 && (mb_row & 2));
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr,
y_only? 0 : u_ptr,
y_only? 0 : v_ptr,
y_stride, uv_stride, dering);
// process 2nd MB top-right
mi = mode_info_context + 1;
do_left_v = !(sb_type && (tx_size >= TX_32X32 ||
sb_mb_lf_skip(mode_info_context, mi)));
do_above_h = (mb_row > 0);
do_left_v_mbuv = do_left_v;
do_above_h_mbuv = !(sb_type >= BLOCK_SIZE_SB64X64 &&
tx_size >= TX_32X32 && (mb_row & 2));
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 16,
y_only ? 0 : (u_ptr + 8),
y_only ? 0 : (v_ptr + 8),
y_stride, uv_stride, dering);
// process 3rd MB bottom-left
mi = mode_info_context + mis;
do_left_v = (mb_col > 0);
do_above_h =!(sb_type && (tx_size >= TX_32X32 ||
sb_mb_lf_skip(mode_info_context, mi)));
do_left_v_mbuv = !(sb_type >= BLOCK_SIZE_SB64X64 &&
tx_size >= TX_32X32 && (mb_col & 2));
do_above_h_mbuv = do_above_h;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 16 * y_stride,
y_only ? 0 : (u_ptr + 8 * uv_stride),
y_only ? 0 : (v_ptr + 8 * uv_stride),
y_stride, uv_stride, dering);
// process 4th MB bottom right
mi = mode_info_context + mis + 1;
do_left_v = !(sb_type && (tx_size >= TX_32X32 ||
sb_mb_lf_skip(mi - 1, mi)));
do_above_h =!(sb_type && (tx_size >= TX_32X32 ||
sb_mb_lf_skip(mode_info_context + 1, mi)));
do_left_v_mbuv = do_left_v;
do_above_h_mbuv = do_above_h;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 16 * y_stride + 16,
y_only ? 0 : (u_ptr + 8 * uv_stride + 8),
y_only ? 0 : (v_ptr + 8 * uv_stride + 8),
y_stride, uv_stride, dering);
}
static void lpf_sb64(VP9_COMMON *cm, const MODE_INFO *mode_info_context,
int mb_row, int mb_col,
uint8_t *y_ptr, uint8_t *u_ptr, uint8_t *v_ptr,
int y_stride, int uv_stride,
int y_only, int dering) {
lpf_sb32(cm, mode_info_context, mb_row, mb_col,
y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, y_only, dering);
lpf_sb32(cm, mode_info_context + 2, mb_row, mb_col + 2,
y_ptr + 32, u_ptr + 16, v_ptr + 16,
y_stride, uv_stride, y_only, dering);
lpf_sb32(cm, mode_info_context + cm->mode_info_stride * 2,
mb_row + 2, mb_col,
y_ptr + 32 * y_stride,
u_ptr + 16 * uv_stride,
v_ptr + 16 * uv_stride,
y_stride, uv_stride, y_only, dering);
lpf_sb32(cm, mode_info_context + cm->mode_info_stride * 2 + 2,
mb_row + 2, mb_col + 2,
y_ptr + 32 * y_stride + 32,
u_ptr + 16 * uv_stride + 16,
v_ptr + 16 * uv_stride + 16,
y_stride, uv_stride, y_only, dering);
}
void vp9_loop_filter_frame(VP9_COMMON *cm,
MACROBLOCKD *xd,
int frame_filter_level,
int y_only,
int dering) {
YV12_BUFFER_CONFIG *post = cm->frame_to_show;
loop_filter_info_n *lfi_n = &cm->lf_info;
struct loop_filter_info lfi;
const FRAME_TYPE frame_type = cm->frame_type;
int mb_row, mb_col;
const int sb64_rows = cm->mb_rows / 4;
const int sb64_cols = cm->mb_cols / 4;
const int extra_sb32_row = (cm->mb_rows & 2) != 0;
const int extra_sb32_col = (cm->mb_cols & 2) != 0;
const int extra_mb_col = cm->mb_cols & 1;
const int extra_mb_row = cm->mb_rows & 1;
// Set up the buffer pointers
uint8_t *y_ptr = post->y_buffer;
uint8_t *u_ptr = y_only ? 0 : post->u_buffer;
@ -220,172 +408,197 @@ void vp9_loop_filter_frame(VP9_COMMON *cm,
// Point at base of Mb MODE_INFO list
const MODE_INFO *mode_info_context = cm->mi;
const MODE_INFO *mi;
const int mis = cm->mode_info_stride;
const int y_stride = post->y_stride;
const int uv_stride = post->uv_stride;
// These two flags signal if MB left edge and above edge
// should be filtered using MB edge filter. Currently, MB
// edge filtering is not applied on MB edge internal to a
// 32x32 superblock if:
// 1) SB32 is using 32x32 prediction and 32x32 transform
// 2) SB32 is using 32x32 prediction and 16x16 transform
// but all coefficients are zero.
// MB edges are on 32x32 superblock boundary are always
// filtered except on image frame boundary.
int do_left_v, do_above_h;
// These two flags signal if MB UV left edge and above edge
// should be filtered using MB edge filter. Currently, MB
// edge filtering is not applied for MB edges internal to
// a 32x32 superblock if:
// 1) SB32 is using 32x32 prediction and 32x32 transform
// 2) SB32 is using 32x32 prediction and 16x16 transform
// but all coefficients are zero.
// 3) SB32 UV edges internal to a SB64 and 32x32 transform
// is used, i.e. UV is doing 32x32 transform hence no
// transform boundary exists inside the SB64 for UV
int do_left_v_mbuv, do_above_h_mbuv;
// Initialize the loop filter for this frame.
vp9_loop_filter_frame_init(cm, xd, frame_filter_level);
// vp9_filter each macro block
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
const MB_PREDICTION_MODE mode = mode_info_context->mbmi.mode;
const int mode_index = lfi_n->mode_lf_lut[mode];
const int seg = mode_info_context->mbmi.segment_id;
const int ref_frame = mode_info_context->mbmi.ref_frame;
const int filter_level = lfi_n->lvl[seg][ref_frame][mode_index];
if (filter_level) {
const int skip_lf = mb_lf_skip(&mode_info_context->mbmi);
const int tx_size = mode_info_context->mbmi.txfm_size;
if (cm->filter_type == NORMAL_LOOPFILTER) {
const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level];
lfi.mblim = lfi_n->mblim[filter_level];
lfi.blim = lfi_n->blim[filter_level];
lfi.lim = lfi_n->lim[filter_level];
lfi.hev_thr = lfi_n->hev_thr[hev_index];
if (mb_col > 0 &&
!((mb_col & 1) && mode_info_context->mbmi.sb_type &&
(sb_mb_lf_skip(mode_info_context - 1, mode_info_context) ||
tx_size >= TX_32X32))
) {
if (tx_size >= TX_16X16)
vp9_lpf_mbv_w(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
else
vp9_loop_filter_mbv(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
}
if (!skip_lf) {
if (tx_size >= TX_8X8) {
if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
vp9_loop_filter_bv8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
else
vp9_loop_filter_bv8x8(y_ptr, NULL, NULL, post->y_stride,
post->uv_stride, &lfi);
} else {
vp9_loop_filter_bv(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
}
}
/* don't apply across umv border */
if (mb_row > 0 &&
!((mb_row & 1) && mode_info_context->mbmi.sb_type &&
(sb_mb_lf_skip(mode_info_context - mis, mode_info_context) ||
tx_size >= TX_32X32))
) {
if (tx_size >= TX_16X16)
vp9_lpf_mbh_w(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
else
vp9_loop_filter_mbh(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
}
if (!skip_lf) {
if (tx_size >= TX_8X8) {
if (tx_size == TX_8X8 && (mode == I8X8_PRED || mode == SPLITMV))
vp9_loop_filter_bh8x8(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
else
vp9_loop_filter_bh8x8(y_ptr, NULL, NULL, post->y_stride,
post->uv_stride, &lfi);
} else {
vp9_loop_filter_bh(y_ptr, u_ptr, v_ptr, post->y_stride,
post->uv_stride, &lfi);
}
}
#if CONFIG_LOOP_DERING
if (dering) {
if (mb_row && mb_row < cm->mb_rows - 1 &&
mb_col && mb_col < cm->mb_cols - 1) {
vp9_post_proc_down_and_across(y_ptr, y_ptr,
post->y_stride, post->y_stride,
16, 16, dering);
if (!y_only) {
vp9_post_proc_down_and_across(u_ptr, u_ptr,
post->uv_stride, post->uv_stride,
8, 8, dering);
vp9_post_proc_down_and_across(v_ptr, v_ptr,
post->uv_stride, post->uv_stride,
8, 8, dering);
}
} else {
// Adjust the filter so that no out-of-frame data is used.
uint8_t *dr_y = y_ptr, *dr_u = u_ptr, *dr_v = v_ptr;
int w_adjust = 0;
int h_adjust = 0;
if (mb_col == 0) {
dr_y += 2;
dr_u += 2;
dr_v += 2;
w_adjust += 2;
}
if (mb_col == cm->mb_cols - 1)
w_adjust += 2;
if (mb_row == 0) {
dr_y += 2 * post->y_stride;
dr_u += 2 * post->uv_stride;
dr_v += 2 * post->uv_stride;
h_adjust += 2;
}
if (mb_row == cm->mb_rows - 1)
h_adjust += 2;
vp9_post_proc_down_and_across_c(dr_y, dr_y,
post->y_stride, post->y_stride,
16 - w_adjust, 16 - h_adjust,
dering);
if (!y_only) {
vp9_post_proc_down_and_across_c(dr_u, dr_u,
post->uv_stride,
post->uv_stride,
8 - w_adjust, 8 - h_adjust,
dering);
vp9_post_proc_down_and_across_c(dr_v, dr_v,
post->uv_stride,
post->uv_stride,
8 - w_adjust, 8 - h_adjust,
dering);
}
}
}
#endif
} else {
// FIXME: Not 8x8 aware
if (mb_col > 0 &&
!(skip_lf && mb_lf_skip(&mode_info_context[-1].mbmi)) &&
!((mb_col & 1) && mode_info_context->mbmi.sb_type))
vp9_loop_filter_simple_mbv(y_ptr, post->y_stride,
lfi_n->mblim[filter_level]);
if (!skip_lf)
vp9_loop_filter_simple_bv(y_ptr, post->y_stride,
lfi_n->blim[filter_level]);
/* don't apply across umv border */
if (mb_row > 0 &&
!(skip_lf && mb_lf_skip(&mode_info_context[-mis].mbmi)) &&
!((mb_row & 1) && mode_info_context->mbmi.sb_type))
vp9_loop_filter_simple_mbh(y_ptr, post->y_stride,
lfi_n->mblim[filter_level]);
if (!skip_lf)
vp9_loop_filter_simple_bh(y_ptr, post->y_stride,
lfi_n->blim[filter_level]);
}
}
// vp9_filter each 64x64 SB
// For each SB64: the 4 SB32 are filtered in raster scan order
// For each SB32: the 4 MBs are filtered in raster scan order
// For each MB: the left and above MB edges as well as the
// internal block edges are processed together
for (mb_row = 0; mb_row < sb64_rows * 4; mb_row += 4) {
for (mb_col = 0; mb_col < sb64_cols * 4; mb_col += 4) {
lpf_sb64(cm, mode_info_context, mb_row, mb_col,
y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, y_only, dering);
y_ptr += 64;
u_ptr = y_only? 0 : u_ptr + 32;
v_ptr = y_only? 0 : v_ptr + 32;
mode_info_context += 4; // step to next SB64
}
if (extra_sb32_col) {
// process 2 SB32s in the extra SB32 col
lpf_sb32(cm, mode_info_context, mb_row, mb_col,
y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, y_only, dering);
lpf_sb32(cm, mode_info_context + mis * 2,
mb_row + 2, mb_col,
y_ptr + 32 * y_stride,
u_ptr + 16 * uv_stride,
v_ptr + 16 * uv_stride,
y_stride, uv_stride, y_only, dering);
y_ptr += 32;
u_ptr = y_only? 0 : u_ptr + 16;
v_ptr = y_only? 0 : v_ptr + 16;
mode_info_context += 2; // step to next SB32
mb_col += 2;
}
if (extra_mb_col) {
// process 4 MB in the extra MB col
// process 1st MB
mi = mode_info_context;
do_left_v = (mb_col > 0);
do_above_h = (mb_row > 0);
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr,
y_only? 0 : u_ptr,
y_only? 0 : v_ptr,
y_stride, uv_stride, dering);
// process 2nd MB
mi = mode_info_context + mis;
do_left_v = (mb_col > 0);
do_above_h = 1;
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 16 * y_stride,
y_only ? 0 : (u_ptr + 8 * uv_stride),
y_only ? 0 : (v_ptr + 8 * uv_stride),
y_stride, uv_stride, dering);
// process 3nd MB
mi = mode_info_context + mis * 2;
do_left_v = (mb_col > 0);
do_above_h = 1;
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 32 * y_stride,
y_only ? 0 : (u_ptr + 16 * uv_stride),
y_only ? 0 : (v_ptr + 16 * uv_stride),
y_stride, uv_stride, dering);
// process 4th MB
mi = mode_info_context + mis * 3;
do_left_v = (mb_col > 0);
do_above_h = 1;
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 48 * y_stride,
y_only ? 0 : (u_ptr + 24 * uv_stride),
y_only ? 0 : (v_ptr + 24 * uv_stride),
y_stride, uv_stride, dering);
y_ptr += 16;
if (!y_only) {
u_ptr += 8;
v_ptr += 8;
}
mode_info_context++; // step to next MB
u_ptr = y_only? 0 : u_ptr + 8;
v_ptr = y_only? 0 : v_ptr + 8;
mode_info_context++; // step to next MB
}
y_ptr += post->y_stride * 16 - post->y_width;
// move pointers to the begining of next sb64 row
y_ptr += y_stride * 64 - post->y_width;
if (!y_only) {
u_ptr += post->uv_stride * 8 - post->uv_width;
v_ptr += post->uv_stride * 8 - post->uv_width;
u_ptr += uv_stride * 32 - post->uv_width;
v_ptr += uv_stride * 32 - post->uv_width;
}
/* skip to next SB64 row */
mode_info_context += mis * 4 - cm->mb_cols;
}
if (extra_sb32_row) {
const int sb32_cols = sb64_cols * 2 + extra_sb32_col;
for (mb_col = 0; mb_col < sb32_cols * 2; mb_col += 2) {
lpf_sb32(cm, mode_info_context, mb_row, mb_col,
y_ptr, u_ptr, v_ptr,
y_stride, uv_stride, y_only, dering);
y_ptr += 32;
u_ptr = y_only? 0 : u_ptr + 16;
v_ptr = y_only? 0 : v_ptr + 16;
mode_info_context += 2; // step to next SB32
}
if (extra_mb_col) {
// process 1st MB
mi = mode_info_context;
do_left_v = (mb_col > 0);
do_above_h = (mb_row > 0);
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr,
y_only? NULL : u_ptr,
y_only? NULL : v_ptr,
y_stride, uv_stride, dering);
// process 2nd MB
mi = mode_info_context + mis;
do_left_v = (mb_col > 0);
do_above_h = 1;
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr + 16 * y_stride,
y_only ? NULL : (u_ptr + 8 * uv_stride),
y_only ? NULL : (v_ptr + 8 * uv_stride),
y_stride, uv_stride, dering);
y_ptr += 16;
u_ptr = y_only? 0 : u_ptr + 8;
v_ptr = y_only? 0 : v_ptr + 8;
mode_info_context++; /* step to next MB */
}
// move pointers to the beginning of next sb64 row
y_ptr += y_stride * 32 - post->y_width;
u_ptr += y_only? 0 : uv_stride * 16 - post->uv_width;
v_ptr += y_only? 0 : uv_stride * 16 - post->uv_width;
// skip to next MB row if exist
mode_info_context += mis * 2 - cm->mb_cols;
mb_row += 2;
}
if (extra_mb_row) {
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
const MODE_INFO *mi = mode_info_context;
do_left_v = (mb_col > 0);
do_above_h = (mb_row > 0);
do_left_v_mbuv = 1;
do_above_h_mbuv = 1;
lpf_mb(cm, mi, do_left_v, do_above_h,
do_left_v_mbuv, do_above_h_mbuv,
y_ptr,
y_only? 0 : u_ptr,
y_only? 0 : v_ptr,
y_stride, uv_stride, dering);
y_ptr += 16;
u_ptr = y_only? 0 : u_ptr + 8;
v_ptr = y_only? 0 : v_ptr + 8;
mode_info_context++; // step to next MB
}
mode_info_context++; // Skip border mb
}
}