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Commit d193cdcf authored by Yue Chen's avatar Yue Chen
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Correct projection samples for local warping model estimation 

When both GLOBAL_MOTION and WARPED_MOTION are enabled, identify
the neighbors using global motion, and generate correct projection
samples, from which the local warped motion is estimated.

Change-Id: I13556a49649208e6f4d30bc570a41074aabc8ae6
parent 86ae7b13
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Showing with 59 additions and 68 deletions
av1/common/mvref_common.c
View file @ d193cdcf
......@@ -973,6 +973,35 @@ void av1_append_sub8x8_mvs_for_idx(const AV1_COMMON *cm, MACROBLOCKD *xd,
}
#if CONFIG_WARPED_MOTION
void calc_projection_samples(MB_MODE_INFO *const mbmi,
#if CONFIG_GLOBAL_MOTION
MACROBLOCKD *xd,
#endif
int x, int y, double *pts_inref) {
if (mbmi->motion_mode == WARPED_CAUSAL
#if CONFIG_GLOBAL_MOTION
|| (mbmi->mode == ZEROMV &&
xd->global_motion[mbmi->ref_frame[0]].wmtype > TRANSLATION)
#endif
) {
int ipts[2] = { x, y }, ipts_inref[2];
WarpedMotionParams *wm =
#if CONFIG_GLOBAL_MOTION
(mbmi->motion_mode != WARPED_CAUSAL)
? &xd->global_motion[mbmi->ref_frame[0]]
:
#endif
&mbmi->wm_params[0];
project_points(wm, ipts, ipts_inref, 1, 2, 2, 0, 0);
pts_inref[0] = (double)ipts_inref[0] / (double)WARPEDPIXEL_PREC_SHIFTS;
pts_inref[1] = (double)ipts_inref[1] / (double)WARPEDPIXEL_PREC_SHIFTS;
} else {
pts_inref[0] = (double)x + (double)(mbmi->mv[0].as_mv.col) * 0.125;
pts_inref[1] = (double)y + (double)(mbmi->mv[0].as_mv.row) * 0.125;
}
}
int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
double *pts, double *pts_inref) {
MB_MODE_INFO *const mbmi0 = &(xd->mi[0]->mbmi);
......@@ -1000,8 +1029,6 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
if (mbmi->ref_frame[0] == ref_frame && mbmi->ref_frame[1] == NONE) {
int bw = block_size_wide[mbmi->sb_type];
int bh = block_size_high[mbmi->sb_type];
int mv_row = mbmi->mv[0].as_mv.row;
int mv_col = mbmi->mv[0].as_mv.col;
int cr_offset = -AOMMAX(bh, 8) / 2 - 1;
int cc_offset = i * 8 + AOMMAX(bw, 8) / 2 - 1;
int j;
......@@ -1011,27 +1038,16 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
mvnumber++;
for (j = 0; j < pixelperblock; j++) {
int r_offset = j / 2;
int c_offset = j % 2;
pts[0] = (double)(cc_offset + c_offset + global_offset_c);
pts[1] = (double)(cr_offset + r_offset + global_offset_r);
if (mbmi->motion_mode == WARPED_CAUSAL) {
int ipts[2], ipts_inref[2];
ipts[0] = cc_offset + c_offset + global_offset_c;
ipts[1] = cr_offset + r_offset + global_offset_r;
project_points(&mbmi->wm_params[0], ipts, ipts_inref, 1, 2, 2, 0,
0);
pts_inref[0] =
(double)ipts_inref[0] / (double)WARPEDPIXEL_PREC_SHIFTS;
pts_inref[1] =
(double)ipts_inref[1] / (double)WARPEDPIXEL_PREC_SHIFTS;
} else {
pts_inref[0] = pts[0] + (double)(mv_col)*0.125;
pts_inref[1] = pts[1] + (double)(mv_row)*0.125;
}
int x = cc_offset + j % 2 + global_offset_c;
int y = cr_offset + j / 2 + global_offset_r;
pts[0] = (double)x;
pts[1] = (double)y;
calc_projection_samples(mbmi,
#if CONFIG_GLOBAL_MOTION
xd,
#endif
x, y, pts_inref);
pts += 2;
pts_inref += 2;
......@@ -1055,8 +1071,6 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
if (mbmi->ref_frame[0] == ref_frame && mbmi->ref_frame[1] == NONE) {
int bw = block_size_wide[mbmi->sb_type];
int bh = block_size_high[mbmi->sb_type];
int mv_row = mbmi->mv[0].as_mv.row;
int mv_col = mbmi->mv[0].as_mv.col;
int cr_offset = i * 8 + AOMMAX(bh, 8) / 2 - 1;
int cc_offset = -AOMMAX(bw, 8) / 2 - 1;
int j;
......@@ -1066,27 +1080,16 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
mvnumber++;
for (j = 0; j < pixelperblock; j++) {
int r_offset = j / 2;
int c_offset = j % 2;
pts[0] = (double)(cc_offset + c_offset + global_offset_c);
pts[1] = (double)(cr_offset + r_offset + global_offset_r);
if (mbmi->motion_mode == WARPED_CAUSAL) {
int ipts[2], ipts_inref[2];
ipts[0] = cc_offset + c_offset + global_offset_c;
ipts[1] = cr_offset + r_offset + global_offset_r;
project_points(&mbmi->wm_params[0], ipts, ipts_inref, 1, 2, 2, 0,
0);
pts_inref[0] =
(double)ipts_inref[0] / (double)WARPEDPIXEL_PREC_SHIFTS;
pts_inref[1] =
(double)ipts_inref[1] / (double)WARPEDPIXEL_PREC_SHIFTS;
} else {
pts_inref[0] = pts[0] + (double)(mv_col)*0.125;
pts_inref[1] = pts[1] + (double)(mv_row)*0.125;
}
int x = cc_offset + j % 2 + global_offset_c;
int y = cr_offset + j / 2 + global_offset_r;
pts[0] = (double)x;
pts[1] = (double)y;
calc_projection_samples(mbmi,
#if CONFIG_GLOBAL_MOTION
xd,
#endif
x, y, pts_inref);
pts += 2;
pts_inref += 2;
......@@ -1106,8 +1109,6 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
if (mbmi->ref_frame[0] == ref_frame && mbmi->ref_frame[1] == NONE) {
int bw = block_size_wide[mbmi->sb_type];
int bh = block_size_high[mbmi->sb_type];
int mv_row = mbmi->mv[0].as_mv.row;
int mv_col = mbmi->mv[0].as_mv.col;
int cr_offset = -AOMMAX(bh, 8) / 2 - 1;
int cc_offset = -AOMMAX(bw, 8) / 2 - 1;
int j;
......@@ -1117,26 +1118,16 @@ int findSamples(const AV1_COMMON *cm, MACROBLOCKD *xd, int mi_row, int mi_col,
mvnumber++;
for (j = 0; j < pixelperblock; j++) {
int r_offset = j / 2;
int c_offset = j % 2;
pts[0] = (double)(cc_offset + c_offset + global_offset_c);
pts[1] = (double)(cr_offset + r_offset + global_offset_r);
if (mbmi->motion_mode == WARPED_CAUSAL) {
int ipts[2], ipts_inref[2];
ipts[0] = cc_offset + c_offset + global_offset_c;
ipts[1] = cr_offset + r_offset + global_offset_r;
project_points(&mbmi->wm_params[0], ipts, ipts_inref, 1, 2, 2, 0, 0);
pts_inref[0] =
(double)ipts_inref[0] / (double)WARPEDPIXEL_PREC_SHIFTS;
pts_inref[1] =
(double)ipts_inref[1] / (double)WARPEDPIXEL_PREC_SHIFTS;
} else {
pts_inref[0] = pts[0] + (double)(mv_col)*0.125;
pts_inref[1] = pts[1] + (double)(mv_row)*0.125;
}
int x = cc_offset + j % 2 + global_offset_c;
int y = cr_offset + j / 2 + global_offset_r;
pts[0] = (double)x;
pts[1] = (double)y;
calc_projection_samples(mbmi,
#if CONFIG_GLOBAL_MOTION
xd,
#endif
x, y, pts_inref);
pts += 2;
pts_inref += 2;
......
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