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replace hev_thr_lut[][] with simpler logic

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Using filter_level/16 instead.

Change-Id: I73a7e83a785d6aa6f9b5d22cf66e22f0a39ed078
This commit is contained in:
Yaowu Xu 2013-04-03 15:22:54 -07:00
parent cb3192b72c
commit 0d310de97b
2 changed files with 1 additions and 21 deletions
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21
vp9/common/vp9_loopfilter.c
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@ -16,24 +16,6 @@
#include "vp9/common/vp9_seg_common.h"
static void lf_init_lut(loop_filter_info_n *lfi) {
int filt_lvl;
for (filt_lvl = 0; filt_lvl <= MAX_LOOP_FILTER; filt_lvl++) {
if (filt_lvl >= 40) {
lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 2;
lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 3;
} else if (filt_lvl >= 20) {
lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 2;
} else if (filt_lvl >= 15) {
lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 1;
lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 1;
} else {
lfi->hev_thr_lut[KEY_FRAME][filt_lvl] = 0;
lfi->hev_thr_lut[INTER_FRAME][filt_lvl] = 0;
}
}
lfi->mode_lf_lut[DC_PRED] = 1;
lfi->mode_lf_lut[D45_PRED] = 1;
lfi->mode_lf_lut[D135_PRED] = 1;
@ -207,7 +189,6 @@ static void lpf_mb(VP9_COMMON *cm, const MODE_INFO *mi,
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;
@ -218,7 +199,7 @@ static void lpf_mb(VP9_COMMON *cm, const MODE_INFO *mi,
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];
const int hev_index = filter_level >> 4;
lfi.mblim = lfi_n->mblim[filter_level];
lfi.blim = lfi_n->blim[filter_level];
lfi.lim = lfi_n->lim[filter_level];

1
vp9/common/vp9_loopfilter.h
View File

@ -37,7 +37,6 @@ typedef struct {
DECLARE_ALIGNED(SIMD_WIDTH, unsigned char,
hev_thr[4][SIMD_WIDTH]);
unsigned char lvl[4][4][4];
unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1];
unsigned char mode_lf_lut[MB_MODE_COUNT];
} loop_filter_info_n;