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Reducing copies in deringing filter

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Only copy the modified pixels from the first filter back into the input of the
second filter.

Change-Id: Ifb9094c33c876a8c6caa0f68771fc7ef59c78b53
This commit is contained in:
Jean-Marc Valin
2016-10-11 17:47:36 -04:00
committed by Yaowu Xu
parent 3e44bccb50
commit cf23aefab5
1 changed files with 40 additions and 5 deletions
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45
av1/common/od_dering.c
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@@ -262,6 +262,44 @@ static INLINE int od_adjust_thresh(int threshold, int32_t var) {
return (threshold * OD_THRESH_TABLE_Q8[OD_ILOG(v1)] + 128) >> 8; return (threshold * OD_THRESH_TABLE_Q8[OD_ILOG(v1)] + 128) >> 8;
} }
static INLINE void copy_8x8_16bit(int16_t *dst, int dstride, int16_t *src, int sstride) {
int i, j;
for (i = 0; i < 8; i++)
for (j = 0; j < 8; j++)
dst[i * dstride + j] = src[i * sstride + j];
}
static INLINE void copy_4x4_16bit(int16_t *dst, int dstride, int16_t *src, int sstride) {
int i, j;
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
dst[i * dstride + j] = src[i * sstride + j];
}
/* TODO: Optimize this function for SSE. */
void copy_blocks_16bit(int16_t *dst, int dstride, int16_t *src, int sstride,
unsigned char (*bskip)[2], int dering_count, int bsize)
{
int bi, bx, by;
if (bsize == 3) {
for (bi = 0; bi < dering_count; bi++) {
by = bskip[bi][0];
bx = bskip[bi][1];
copy_8x8_16bit(&dst[(by << 3) * dstride + (bx << 3)],
dstride,
&src[(by << 3) * sstride + (bx << 3)], sstride);
}
} else {
for (bi = 0; bi < dering_count; bi++) {
by = bskip[bi][0];
bx = bskip[bi][1];
copy_4x4_16bit(&dst[(by << 2) * dstride + (bx << 2)],
dstride,
&src[(by << 2) * sstride + (bx << 2)], sstride);
}
}
}
void od_dering(int16_t *y, int ystride, const od_dering_in *x, int xstride, void od_dering(int16_t *y, int ystride, const od_dering_in *x, int xstride,
int nhb, int nvb, int sbx, int sby, int nhsb, int nvsb, int xdec, int nhb, int nvb, int sbx, int sby, int nhsb, int nvsb, int xdec,
int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS], int pli, int dir[OD_DERING_NBLOCKS][OD_DERING_NBLOCKS], int pli,
@@ -332,11 +370,8 @@ void od_dering(int16_t *y, int ystride, const od_dering_in *x, int xstride,
dir[by][bx]); dir[by][bx]);
} }
} }
for (i = 0; i < nvb << bsize; i++) { copy_blocks_16bit(in, OD_FILT_BSTRIDE, y, ystride, bskip, dering_count,
for (j = 0; j < nhb << bsize; j++) { bsize);
in[i * OD_FILT_BSTRIDE + j] = y[i * ystride + j];
}
}
for (bi = 0; bi < dering_count; bi++) { for (bi = 0; bi < dering_count; bi++) {
by = bskip[bi][0]; by = bskip[bi][0];
bx = bskip[bi][1]; bx = bskip[bi][1];