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Cleaning up vp9_loopfilter.c file.

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Change-Id: Ic6770072f80dfb54d2725ed96370d4f243a9f474
This commit is contained in:
Dmitry Kovalev 2013-11-14 15:04:14 -08:00
parent e6b72d0119
commit 3f9fc6f6f8
1 changed files with 24 additions and 25 deletions
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49
vp9/common/vp9_loopfilter.c
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@ -283,10 +283,10 @@ void vp9_loop_filter_frame_init(VP9_COMMON *cm, int default_filt_lvl) {
// n_shift is the a multiplier for lf_deltas
// the multiplier is 1 for when filter_lvl is between 0 and 31;
// 2 when filter_lvl is between 32 and 63
const int n_shift = default_filt_lvl >> 5;
const int scale = 1 << (default_filt_lvl >> 5);
loop_filter_info_n *const lfi = &cm->lf_info;
struct loopfilter *const lf = &cm->lf;
struct segmentation *const seg = &cm->seg;
const struct segmentation *const seg = &cm->seg;
// update limits if sharpness has changed
if (lf->last_sharpness_level != lf->sharpness_level) {
@ -295,9 +295,7 @@ void vp9_loop_filter_frame_init(VP9_COMMON *cm, int default_filt_lvl) {
}
for (seg_id = 0; seg_id < MAX_SEGMENTS; seg_id++) {
int lvl_seg = default_filt_lvl, ref, mode, intra_lvl;
// Set the baseline filter values for each segment
int lvl_seg = default_filt_lvl;
if (vp9_segfeature_active(seg, seg_id, SEG_LVL_ALT_LF)) {
const int data = vp9_get_segdata(seg, seg_id, SEG_LVL_ALT_LF);
lvl_seg = seg->abs_delta == SEGMENT_ABSDATA
@ -309,31 +307,22 @@ void vp9_loop_filter_frame_init(VP9_COMMON *cm, int default_filt_lvl) {
// we could get rid of this if we assume that deltas are set to
// zero when not in use; encoder always uses deltas
vpx_memset(lfi->lvl[seg_id], lvl_seg, sizeof(lfi->lvl[seg_id]));
continue;
}
} else {
int ref, mode;
const int intra_lvl = lvl_seg + lf->ref_deltas[INTRA_FRAME] * scale;
lfi->lvl[seg_id][INTRA_FRAME][0] = clamp(intra_lvl, 0, MAX_LOOP_FILTER);
intra_lvl = lvl_seg + lf->ref_deltas[INTRA_FRAME] * (1 << n_shift);
lfi->lvl[seg_id][INTRA_FRAME][0] = clamp(intra_lvl, 0, MAX_LOOP_FILTER);
for (ref = LAST_FRAME; ref < MAX_REF_FRAMES; ++ref)
for (mode = 0; mode < MAX_MODE_LF_DELTAS; ++mode) {
const int inter_lvl = lvl_seg + lf->ref_deltas[ref] * (1 << n_shift)
+ lf->mode_deltas[mode] * (1 << n_shift);
lfi->lvl[seg_id][ref][mode] = clamp(inter_lvl, 0, MAX_LOOP_FILTER);
for (ref = LAST_FRAME; ref < MAX_REF_FRAMES; ++ref) {
for (mode = 0; mode < MAX_MODE_LF_DELTAS; ++mode) {
const int inter_lvl = lvl_seg + lf->ref_deltas[ref] * scale
+ lf->mode_deltas[mode] * scale;
lfi->lvl[seg_id][ref][mode] = clamp(inter_lvl, 0, MAX_LOOP_FILTER);
}
}
}
}
}
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];
const int mode = lfi_n->mode_lf_lut[mbmi->mode];
const int filter_level = lfi_n->lvl[seg][ref][mode];
return filter_level;
}
static void filter_selectively_vert(uint8_t *s, int pitch,
unsigned int mask_16x16,
unsigned int mask_8x8,
@ -867,6 +856,16 @@ static void setup_mask(VP9_COMMON *const cm, const int mi_row, const int mi_col,
}
#if CONFIG_NON420
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];
const int mode = lfi_n->mode_lf_lut[mbmi->mode];
const int filter_level = lfi_n->lvl[seg][ref][mode];
return filter_level;
}
static void filter_block_plane_non420(VP9_COMMON *cm,
struct macroblockd_plane *plane,
MODE_INFO **mi_8x8,