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Separated experiment for subpel refmv selection

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As suggested by Paul, this commit separate the subpel refmv selection
into a separate experiment. It also changed a couple variable names
to better reflect the nature of the variables.

Change-Id: Id951c3cadc61a982dd15afe641000f60213b8995
This commit is contained in:
Yaowu Xu 2012-10-30 09:43:24 -07:00
parent db54baf9aa
commit 24265e884e
2 changed files with 36 additions and 13 deletions
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1
configure vendored
View File

@ -222,6 +222,7 @@ EXPERIMENT_LIST="
pred_filter
lossless
newbestrefmv
subpelrefmv
new_mvref
implicit_segmentation
"

48
vp8/common/findnearmv.c
View File

@ -202,9 +202,9 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd,
unsigned char *left_src;
unsigned char *above_ref;
unsigned char *left_ref;
int sad;
int score;
int sse;
int sad_scores[MAX_MV_REFS] = {0};
int ref_scores[MAX_MV_REFS] = {0};
int_mv sorted_mvs[MAX_MV_REFS];
int zero_seen = FALSE;
@ -212,10 +212,17 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd,
best_mv->as_int = nearest->as_int = near->as_int = 0;
vpx_memset(sorted_mvs, 0, sizeof(sorted_mvs));
#if CONFIG_SUBPELREFMV
above_src = xd->dst.y_buffer - xd->dst.y_stride * 2;
left_src = xd->dst.y_buffer - 2;
above_ref = ref_y_buffer - ref_y_stride * 2;
left_ref = ref_y_buffer - 2;
#else
above_src = xd->dst.y_buffer - xd->dst.y_stride * 3;
left_src = xd->dst.y_buffer - 3;
above_ref = ref_y_buffer - ref_y_stride * 3;
left_ref = ref_y_buffer - 3;
#endif
//for(i = 0; i < MAX_MV_REFS; ++i) {
// Limit search to the predicted best 4
@ -234,37 +241,52 @@ void vp8_find_best_ref_mvs(MACROBLOCKD *xd,
zero_seen = zero_seen || !this_mv.as_int;
vp8_clamp_mv(&this_mv,
xd->mb_to_left_edge - LEFT_TOP_MARGIN + 16,
xd->mb_to_left_edge - LEFT_TOP_MARGIN + 24,
xd->mb_to_right_edge + RIGHT_BOTTOM_MARGIN,
xd->mb_to_top_edge - LEFT_TOP_MARGIN + 16,
xd->mb_to_top_edge - LEFT_TOP_MARGIN + 24,
xd->mb_to_bottom_edge + RIGHT_BOTTOM_MARGIN);
#if CONFIG_SUBPELREFMV
row_offset = this_mv.as_mv.row >> 3;
col_offset = this_mv.as_mv.col >> 3;
offset = ref_y_stride * row_offset + col_offset;
sad = 0;
score = 0;
if (xd->up_available) {
vp8_sub_pixel_variance16x2_c(above_ref + offset, ref_y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
above_src, xd->dst.y_stride, &sse);
sad += sse;
score += sse;
}
if (xd->left_available) {
vp8_sub_pixel_variance2x16_c(left_ref + offset, ref_y_stride,
SP(this_mv.as_mv.col), SP(this_mv.as_mv.row),
left_src, xd->dst.y_stride, &sse);
sad += sse;
score += sse;
}
#else
row_offset = (this_mv.as_mv.row > 0) ?
((this_mv.as_mv.row + 3) >> 3):((this_mv.as_mv.row + 4) >> 3);
col_offset = (this_mv.as_mv.col > 0) ?
((this_mv.as_mv.col + 3) >> 3):((this_mv.as_mv.col + 4) >> 3);
offset = ref_y_stride * row_offset + col_offset;
score = 0;
if (xd->up_available) {
score += vp8_sad16x3(above_src, xd->dst.y_stride,
above_ref + offset, ref_y_stride, INT_MAX);
}
if (xd->left_available) {
score += vp8_sad3x16(left_src, xd->dst.y_stride,
left_ref + offset, ref_y_stride, INT_MAX);
}
#endif
// Add the entry to our list and then resort the list on score.
sad_scores[i] = sad;
ref_scores[i] = score;
sorted_mvs[i].as_int = this_mv.as_int;
j = i;
while (j > 0) {
if (sad_scores[j] < sad_scores[j-1]) {
sad_scores[j] = sad_scores[j-1];
if (ref_scores[j] < ref_scores[j-1]) {
ref_scores[j] = ref_scores[j-1];
sorted_mvs[j].as_int = sorted_mvs[j-1].as_int;
sad_scores[j-1] = sad;
ref_scores[j-1] = score;
sorted_mvs[j-1].as_int = this_mv.as_int;
j--;
} else