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Merge "Code cleanup: put (8x8/4x4)fill_variance into separate function."

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Marco 2015-04-02 17:33:01 -07:00 committed by Gerrit Code Review
commit f85f79f630
1 changed files with 88 additions and 54 deletions
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142
vp9/encoder/vp9_encodeframe.c
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@ -511,6 +511,84 @@ void vp9_set_vbp_thresholds(VP9_COMP *cpi, int q) {
}
}
static void fill_variance_4x4avg(const uint8_t *s, int sp, const uint8_t *d,
int dp, int x8_idx, int y8_idx, v8x8 *vst,
#if CONFIG_VP9_HIGHBITDEPTH
int highbd_flag,
#endif
int pixels_wide,
int pixels_high,
int is_key_frame) {
int k;
for (k = 0; k < 4; k++) {
int x4_idx = x8_idx + ((k & 1) << 2);
int y4_idx = y8_idx + ((k >> 1) << 2);
unsigned int sse = 0;
int sum = 0;
if (x4_idx < pixels_wide && y4_idx < pixels_high) {
int s_avg;
int d_avg = 128;
#if CONFIG_VP9_HIGHBITDEPTH
if (highbd_flag & YV12_FLAG_HIGHBITDEPTH) {
s_avg = vp9_highbd_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (!is_key_frame)
d_avg = vp9_highbd_avg_4x4(d + y4_idx * dp + x4_idx, dp);
} else {
s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (!is_key_frame)
d_avg = vp9_avg_4x4(d + y4_idx * dp + x4_idx, dp);
}
#else
s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (!is_key_frame)
d_avg = vp9_avg_4x4(d + y4_idx * dp + x4_idx, dp);
#endif
sum = s_avg - d_avg;
sse = sum * sum;
}
fill_variance(sse, sum, 0, &vst->split[k].part_variances.none);
}
}
static void fill_variance_8x8avg(const uint8_t *s, int sp, const uint8_t *d,
int dp, int x16_idx, int y16_idx, v16x16 *vst,
#if CONFIG_VP9_HIGHBITDEPTH
int highbd_flag,
#endif
int pixels_wide,
int pixels_high,
int is_key_frame) {
int k;
for (k = 0; k < 4; k++) {
int x8_idx = x16_idx + ((k & 1) << 3);
int y8_idx = y16_idx + ((k >> 1) << 3);
unsigned int sse = 0;
int sum = 0;
if (x8_idx < pixels_wide && y8_idx < pixels_high) {
int s_avg;
int d_avg = 128;
#if CONFIG_VP9_HIGHBITDEPTH
if (highbd_flag & YV12_FLAG_HIGHBITDEPTH) {
s_avg = vp9_highbd_avg_8x8(s + y8_idx * sp + x8_idx, sp);
if (!is_key_frame)
d_avg = vp9_highbd_avg_8x8(d + y8_idx * dp + x8_idx, dp);
} else {
s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp);
if (!is_key_frame)
d_avg = vp9_avg_8x8(d + y8_idx * dp + x8_idx, dp);
}
#else
s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp);
if (!is_key_frame)
d_avg = vp9_avg_8x8(d + y8_idx * dp + x8_idx, dp);
#endif
sum = s_avg - d_avg;
sse = sum * sum;
}
fill_variance(sse, sum, 0, &vst->split[k].part_variances.none);
}
}
// This function chooses partitioning based on the variance between source and
// reconstructed last, where variance is computed for down-sampled inputs.
static void choose_partitioning(VP9_COMP *cpi,
@ -647,33 +725,13 @@ static void choose_partitioning(VP9_COMP *cpi,
v16x16 *vst = &vt.split[i].split[j];
variance4x4downsample[i2 + j] = 0;
if (!is_key_frame) {
for (k = 0; k < 4; k++) {
int x8_idx = x16_idx + ((k & 1) << 3);
int y8_idx = y16_idx + ((k >> 1) << 3);
unsigned int sse = 0;
int sum = 0;
if (x8_idx < pixels_wide && y8_idx < pixels_high) {
int s_avg, d_avg;
fill_variance_8x8avg(s, sp, d, dp, x16_idx, y16_idx, vst,
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
s_avg = vp9_highbd_avg_8x8(s + y8_idx * sp + x8_idx, sp);
d_avg = vp9_highbd_avg_8x8(d + y8_idx * dp + x8_idx, dp);
} else {
s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp);
d_avg = vp9_avg_8x8(d + y8_idx * dp + x8_idx, dp);
}
#else
s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp);
d_avg = vp9_avg_8x8(d + y8_idx * dp + x8_idx, dp);
xd->cur_buf->flags,
#endif
sum = s_avg - d_avg;
sse = sum * sum;
}
// If variance is based on 8x8 downsampling, we stop here and have
// one sample for 8x8 block (so use 1 for count in fill_variance),
// which of course means variance = 0 for 8x8 block.
fill_variance(sse, sum, 0, &vst->split[k].part_variances.none);
}
pixels_wide,
pixels_high,
is_key_frame);
fill_variance_tree(&vt.split[i].split[j], BLOCK_16X16);
// For low-resolution, compute the variance based on 8x8 down-sampling,
// and if it is large (above the threshold) we go down for 4x4.
@ -691,37 +749,13 @@ static void choose_partitioning(VP9_COMP *cpi,
int y8_idx = y16_idx + ((k >> 1) << 3);
v8x8 *vst2 = is_key_frame ? &vst->split[k] :
&vt2[i2 + j].split[k];
for (m = 0; m < 4; m++) {
int x4_idx = x8_idx + ((m & 1) << 2);
int y4_idx = y8_idx + ((m >> 1) << 2);
unsigned int sse = 0;
int sum = 0;
if (x4_idx < pixels_wide && y4_idx < pixels_high) {
int d_avg = 128;
fill_variance_4x4avg(s, sp, d, dp, x8_idx, y8_idx, vst2,
#if CONFIG_VP9_HIGHBITDEPTH
int s_avg;
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
s_avg = vp9_highbd_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (cm->frame_type != KEY_FRAME)
d_avg = vp9_highbd_avg_4x4(d + y4_idx * dp + x4_idx, dp);
} else {
s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (cm->frame_type != KEY_FRAME)
d_avg = vp9_avg_4x4(d + y4_idx * dp + x4_idx, dp);
}
#else
int s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp);
if (!is_key_frame)
d_avg = vp9_avg_4x4(d + y4_idx * dp + x4_idx, dp);
xd->cur_buf->flags,
#endif
sum = s_avg - d_avg;
sse = sum * sum;
}
// If variance is based on 4x4 down-sampling, we stop here and have
// one sample for 4x4 block (so use 1 for count in fill_variance),
// which of course means variance = 0 for 4x4 block.
fill_variance(sse, sum, 0, &vst2->split[m].part_variances.none);
}
pixels_wide,
pixels_high,
is_key_frame);
}
}
}