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add convolution function with adjustable length

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Change-Id: I1a5b1e15a188ef11594d0c6ac0dbd42aac59cfca
This commit is contained in:
Angie Chiang
2016-02-04 16:13:18 -08:00
parent 9604f69005
commit d5349112e8
10 changed files with 571 additions and 31 deletions
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15
vp10/decoder/decodeframe.c
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@@ -734,13 +734,17 @@ static void dec_build_inter_predictors(VP10Decoder *const pbi, MACROBLOCKD *xd,
int x1 = ((x0_16 + (w - 1) * xs) >> SUBPEL_BITS) + 1;
int x_pad = 0, y_pad = 0;
InterpFilterParams filter_params =
vp10_get_interp_filter_params(interp_filter);
int filter_size = filter_params.tap;
if (subpel_x ||
#if CONFIG_EXT_INTERP
!i_filter ||
#endif
(sf->x_step_q4 != SUBPEL_SHIFTS)) {
x0 -= VP9_INTERP_EXTEND - 1;
x1 += VP9_INTERP_EXTEND;
x0 -= filter_size / 2 - 1;
x1 += filter_size / 2;
x_pad = 1;
}
@@ -749,8 +753,8 @@ static void dec_build_inter_predictors(VP10Decoder *const pbi, MACROBLOCKD *xd,
!i_filter ||
#endif
(sf->y_step_q4 != SUBPEL_SHIFTS)) {
y0 -= VP9_INTERP_EXTEND - 1;
y1 += VP9_INTERP_EXTEND;
y0 -= filter_size / 2 - 1;
y1 += filter_size / 2;
y_pad = 1;
}
@@ -767,7 +771,8 @@ static void dec_build_inter_predictors(VP10Decoder *const pbi, MACROBLOCKD *xd,
const uint8_t *const buf_ptr1 = ref_frame + y0 * buf_stride + x0;
const int b_w = x1 - x0 + 1;
const int b_h = y1 - y0 + 1;
const int border_offset = y_pad * 3 * b_w + x_pad * 3;
const int border_offset = y_pad * (filter_size / 2 - 1) * b_w +
x_pad * (filter_size / 2 - 1);
extend_and_predict(buf_ptr1, buf_stride, x0, y0, b_w, b_h,
frame_width, frame_height, border_offset,