generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Cleaning up vp9_loopfilter.c.

Browse Source 
Change-Id: I7c7cf7d3c7b00d1c74ffa8aa8fb8d78a0e48326f
This commit is contained in:
Dmitry Kovalev 2014-03-21 16:31:15 -07:00
parent e0c212646c
commit 58cc06f9b3
1 changed files with 35 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
vp9/common/vp9_loopfilter.c
View File

@ -228,6 +228,12 @@ static void update_sharpness(loop_filter_info_n *lfi, int sharpness_lvl) {
}
}
static uint8_t get_filter_level(const loop_filter_info_n *lfi_n,
const MB_MODE_INFO *mbmi) {
return lfi_n->lvl[mbmi->segment_id][mbmi->ref_frame[0]]
[mode_lf_lut[mbmi->mode]];
}
void vp9_loop_filter_init(VP9_COMMON *cm) {
loop_filter_info_n *lfi = &cm->lf_info;
struct loopfilter *lf = &cm->lf;
@ -493,27 +499,25 @@ static void build_masks(const loop_filter_info_n *const lfi_n,
const MODE_INFO *mi, const int shift_y,
const int shift_uv,
LOOP_FILTER_MASK *lfm) {
const BLOCK_SIZE block_size = mi->mbmi.sb_type;
const TX_SIZE tx_size_y = mi->mbmi.tx_size;
const TX_SIZE tx_size_uv = get_uv_tx_size(&mi->mbmi);
const int skip = mi->mbmi.skip;
const int seg = mi->mbmi.segment_id;
const int ref = mi->mbmi.ref_frame[0];
const int filter_level = lfi_n->lvl[seg][ref][mode_lf_lut[mi->mbmi.mode]];
uint64_t *left_y = &lfm->left_y[tx_size_y];
uint64_t *above_y = &lfm->above_y[tx_size_y];
uint64_t *int_4x4_y = &lfm->int_4x4_y;
uint16_t *left_uv = &lfm->left_uv[tx_size_uv];
uint16_t *above_uv = &lfm->above_uv[tx_size_uv];
uint16_t *int_4x4_uv = &lfm->int_4x4_uv;
const MB_MODE_INFO *mbmi = &mi->mbmi;
const BLOCK_SIZE block_size = mbmi->sb_type;
const TX_SIZE tx_size_y = mbmi->tx_size;
const TX_SIZE tx_size_uv = get_uv_tx_size(mbmi);
const int filter_level = get_filter_level(lfi_n, mbmi);
uint64_t *const left_y = &lfm->left_y[tx_size_y];
uint64_t *const above_y = &lfm->above_y[tx_size_y];
uint64_t *const int_4x4_y = &lfm->int_4x4_y;
uint16_t *const left_uv = &lfm->left_uv[tx_size_uv];
uint16_t *const above_uv = &lfm->above_uv[tx_size_uv];
uint16_t *const int_4x4_uv = &lfm->int_4x4_uv;
int i;
int w = num_8x8_blocks_wide_lookup[block_size];
int h = num_8x8_blocks_high_lookup[block_size];
// If filter level is 0 we don't loop filter.
if (!filter_level) {
return;
} else {
const int w = num_8x8_blocks_wide_lookup[block_size];
const int h = num_8x8_blocks_high_lookup[block_size];
int index = shift_y;
for (i = 0; i < h; i++) {
vpx_memset(&lfm->lfl_y[index], filter_level, w);
@ -540,7 +544,7 @@ static void build_masks(const loop_filter_info_n *const lfi_n,
// If the block has no coefficients and is not intra we skip applying
// the loop filter on block edges.
if (skip && ref > INTRA_FRAME)
if (mbmi->skip && is_inter_block(mbmi))
return;
// Here we are adding a mask for the transform size. The transform
@ -561,13 +565,12 @@ static void build_masks(const loop_filter_info_n *const lfi_n,
// boundaries. These differ from the 4x4 boundaries on the outside edge of
// an 8x8 in that the internal ones can be skipped and don't depend on
// the prediction block size.
if (tx_size_y == TX_4X4) {
if (tx_size_y == TX_4X4)
*int_4x4_y |= (size_mask[block_size] & 0xffffffffffffffff) << shift_y;
}
if (tx_size_uv == TX_4X4) {
if (tx_size_uv == TX_4X4)
*int_4x4_uv |= (size_mask_uv[block_size] & 0xffff) << shift_uv;
}
}
// This function does the same thing as the one above with the exception that
// it only affects the y masks. It exists because for blocks < 16x16 in size,
@ -575,22 +578,20 @@ static void build_masks(const loop_filter_info_n *const lfi_n,
static void build_y_mask(const loop_filter_info_n *const lfi_n,
const MODE_INFO *mi, const int shift_y,
LOOP_FILTER_MASK *lfm) {
const BLOCK_SIZE block_size = mi->mbmi.sb_type;
const TX_SIZE tx_size_y = mi->mbmi.tx_size;
const int skip = mi->mbmi.skip;
const int seg = mi->mbmi.segment_id;
const int ref = mi->mbmi.ref_frame[0];
const int filter_level = lfi_n->lvl[seg][ref][mode_lf_lut[mi->mbmi.mode]];
uint64_t *left_y = &lfm->left_y[tx_size_y];
uint64_t *above_y = &lfm->above_y[tx_size_y];
uint64_t *int_4x4_y = &lfm->int_4x4_y;
const MB_MODE_INFO *mbmi = &mi->mbmi;
const BLOCK_SIZE block_size = mbmi->sb_type;
const TX_SIZE tx_size_y = mbmi->tx_size;
const int filter_level = get_filter_level(lfi_n, mbmi);
uint64_t *const left_y = &lfm->left_y[tx_size_y];
uint64_t *const above_y = &lfm->above_y[tx_size_y];
uint64_t *const int_4x4_y = &lfm->int_4x4_y;
int i;
int w = num_8x8_blocks_wide_lookup[block_size];
int h = num_8x8_blocks_high_lookup[block_size];
if (!filter_level) {
return;
} else {
const int w = num_8x8_blocks_wide_lookup[block_size];
const int h = num_8x8_blocks_high_lookup[block_size];
int index = shift_y;
for (i = 0; i < h; i++) {
vpx_memset(&lfm->lfl_y[index], filter_level, w);
@ -601,7 +602,7 @@ static void build_y_mask(const loop_filter_info_n *const lfi_n,
*above_y |= above_prediction_mask[block_size] << shift_y;
*left_y |= left_prediction_mask[block_size] << shift_y;
if (skip && ref > INTRA_FRAME)
if (mbmi->skip && is_inter_block(mbmi))
return;
*above_y |= (size_mask[block_size] &
@ -610,10 +611,9 @@ static void build_y_mask(const loop_filter_info_n *const lfi_n,
*left_y |= (size_mask[block_size] &
left_64x64_txform_mask[tx_size_y]) << shift_y;
if (tx_size_y == TX_4X4) {
if (tx_size_y == TX_4X4)
*int_4x4_y |= (size_mask[block_size] & 0xffffffffffffffff) << shift_y;
}
}
// This function sets up the bit masks for the entire 64x64 region represented
// by mi_row, mi_col.
@ -868,13 +868,6 @@ void vp9_setup_mask(VP9_COMMON *const cm, const int mi_row, const int mi_col,
assert(!(lfm->int_4x4_uv & lfm->above_uv[TX_16X16]));
}
static uint8_t build_lfi(const loop_filter_info_n *lfi_n,
const MB_MODE_INFO *mbmi) {
const int seg = mbmi->segment_id;
const int ref = mbmi->ref_frame[0];
return lfi_n->lvl[seg][ref][mode_lf_lut[mbmi->mode]];
}
static void filter_selectively_vert(uint8_t *s, int pitch,
unsigned int mask_16x16,
unsigned int mask_8x8,
@ -953,7 +946,7 @@ static void filter_block_plane_non420(VP9_COMMON *cm,
// Filter level can vary per MI
if (!(lfl[(r << 3) + (c >> ss_x)] =
build_lfi(&cm->lf_info, &mi[0].mbmi)))
get_filter_level(&cm->lf_info, &mi[0].mbmi)))
continue;
// Build masks based on the transform size of each block