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Fix a bug from merging frame parallel branch into master.

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The merge did not merge the fix for issue #850.

Change-Id: I0dc1377dbfcb9497fb01a13d4f78ac65bff5eb33
This commit is contained in:
hkuang 2015-02-02 15:34:21 -08:00
parent be6aeadaf4
commit 94a459522e
1 changed files with 6 additions and 12 deletions
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18
vp9/decoder/vp9_decodeframe.c
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@ -1812,12 +1812,6 @@ void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
? average_split_mvs(pd, mi, ref, block)
: mi->mbmi.mv[ref].as_mv;
// TODO(jkoleszar): This clamping is done in the incorrect place for the
// scaling case. It needs to be done on the scaled MV, not the pre-scaling
// MV. Note however that it performs the subsampling aware scaling so
// that the result is always q4.
// mv_precision precision is MV_PRECISION_Q4.
const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh,
pd->subsampling_x,
pd->subsampling_y);
@ -1829,6 +1823,7 @@ void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
const int idx = xd->block_refs[ref]->idx;
BufferPool *const pool = pbi->common.buffer_pool;
RefCntBuffer *const ref_frame_buf = &pool->frame_bufs[idx];
const int is_scaled = vp9_is_scaled(sf);
// Get reference frame pointer, width and height.
if (plane == 0) {
@ -1842,7 +1837,7 @@ void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
: ref_frame_buf->buf.v_buffer;
}
if (vp9_is_scaled(sf)) {
if (is_scaled) {
// Co-ordinate of containing block to pixel precision.
int x_start = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x));
int y_start = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y));
@ -1897,20 +1892,19 @@ void dec_build_inter_predictors(VP9Decoder *const pbi, MACROBLOCKD *xd,
// Do border extension if there is motion or the
// width/height is not a multiple of 8 pixels.
if (scaled_mv.col || scaled_mv.row ||
if (is_scaled || scaled_mv.col || scaled_mv.row ||
(frame_width & 0x7) || (frame_height & 0x7)) {
int x_pad = 0, y_pad = 0;
// Get reference block bottom right horizontal coordinate.
int x1 = ((x0_16 + (w - 1) * xs) >> SUBPEL_BITS) + 1;
int x_pad = 0, y_pad = 0;
if (subpel_x || (sf->x_step_q4 & SUBPEL_MASK)) {
if (subpel_x || (sf->x_step_q4 != SUBPEL_SHIFTS)) {
x0 -= VP9_INTERP_EXTEND - 1;
x1 += VP9_INTERP_EXTEND;
x_pad = 1;
}
if (subpel_y || (sf->y_step_q4 & SUBPEL_MASK)) {
if (subpel_y || (sf->y_step_q4 != SUBPEL_SHIFTS)) {
y0 -= VP9_INTERP_EXTEND - 1;
y1 += VP9_INTERP_EXTEND;
y_pad = 1;