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Merge "Overhauling the thresholds and mixing proportions for mfqe postprocessor."

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Deb Mukherjee 2012-01-20 08:45:42 -08:00 committed by Gerrit Code Review
commit f357e5e2f7
1 changed files with 49 additions and 45 deletions
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94
vp8/common/postproc.c
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@ -736,7 +736,7 @@ static void multiframe_quality_enhance_block
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
int blksizeby2 = blksize >> 1;
int blksizesq = blksize * blksize;
int qdiff = qcurr - qprev;
int i, j;
unsigned char *yp;
@ -749,27 +749,28 @@ static void multiframe_quality_enhance_block
unsigned int act, sse, sad, thr;
if (blksize == 16)
{
act = vp8_variance_var16x16(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad16x16(y, y_stride, yd, yd_stride, 0);
act = (vp8_variance_var16x16(yd, yd_stride, VP8_ZEROS, 0, &sse)+128)>>8;
sad = (vp8_variance_sad16x16(y, y_stride, yd, yd_stride, 0)+128)>>8;
}
else if (blksize == 8)
{
act = vp8_variance_var8x8(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad8x8(y, y_stride, yd, yd_stride, 0);
act = (vp8_variance_var8x8(yd, yd_stride, VP8_ZEROS, 0, &sse)+32)>>6;
sad = (vp8_variance_sad8x8(y, y_stride, yd, yd_stride, 0)+32)>>6;
}
else
{
act = vp8_variance_var4x4(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad4x4(y, y_stride, yd, yd_stride, 0);
act = (vp8_variance_var4x4(yd, yd_stride, VP8_ZEROS, 0, &sse)+8)>>4;
sad = (vp8_variance_sad4x4(y, y_stride, yd, yd_stride, 0)+8)>>4;
}
thr = 6 * blksizesq + (act >> 3);
if (thr > 12 * blksizesq) thr = 12 * blksizesq;
// These thresholds should be adapted later based on qcurr and qprev
/* thr = qdiff/8 + log2(act) + log4(qprev) */
thr = (qdiff>>3);
while (act>>=1) thr++;
while (qprev>>=2) thr++;
if (sad < thr)
{
static const int roundoff = (1 << (MFQE_PRECISION - 1));
int ifactor = (sad << MFQE_PRECISION) / thr;
ifactor >>= (qdiff >> 5);
// TODO: SIMD optimize this section
if (ifactor)
{
@ -861,41 +862,44 @@ void vp8_multiframe_quality_enhance
if (((frame_type == INTER_FRAME &&
abs(mode_info_context->mbmi.mv.as_mv.row) <= 10 &&
abs(mode_info_context->mbmi.mv.as_mv.col) <= 10) ||
(frame_type == KEY_FRAME)) &&
mode_info_context->mbmi.mode != B_PRED)
(frame_type == KEY_FRAME)))
{
multiframe_quality_enhance_block(16,
qcurr,
qprev,
y_ptr,
u_ptr,
v_ptr,
show->y_stride,
show->uv_stride,
yd_ptr,
ud_ptr,
vd_ptr,
dest->y_stride,
dest->uv_stride);
}
else if (mode_info_context->mbmi.mode == B_PRED)
{
int i, j;
for (i=0; i<2; ++i)
for (j=0; j<2; ++j)
multiframe_quality_enhance_block(8,
qcurr,
qprev,
y_ptr + 8*(i*show->y_stride+j),
u_ptr + 4*(i*show->uv_stride+j),
v_ptr + 4*(i*show->uv_stride+j),
show->y_stride,
show->uv_stride,
yd_ptr + 8*(i*dest->y_stride+j),
ud_ptr + 4*(i*dest->uv_stride+j),
vd_ptr + 4*(i*dest->uv_stride+j),
dest->y_stride,
dest->uv_stride);
if (mode_info_context->mbmi.mode == B_PRED || mode_info_context->mbmi.mode == SPLITMV)
{
int i, j;
for (i=0; i<2; ++i)
for (j=0; j<2; ++j)
multiframe_quality_enhance_block(8,
qcurr,
qprev,
y_ptr + 8*(i*show->y_stride+j),
u_ptr + 4*(i*show->uv_stride+j),
v_ptr + 4*(i*show->uv_stride+j),
show->y_stride,
show->uv_stride,
yd_ptr + 8*(i*dest->y_stride+j),
ud_ptr + 4*(i*dest->uv_stride+j),
vd_ptr + 4*(i*dest->uv_stride+j),
dest->y_stride,
dest->uv_stride);
}
else
{
multiframe_quality_enhance_block(16,
qcurr,
qprev,
y_ptr,
u_ptr,
v_ptr,
show->y_stride,
show->uv_stride,
yd_ptr,
ud_ptr,
vd_ptr,
dest->y_stride,
dest->uv_stride);
}
}
else
{