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path: root/libvpx/vp9/decoder/vp9_decodemv.c
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Diffstat (limited to 'libvpx/vp9/decoder/vp9_decodemv.c')
-rw-r--r--libvpx/vp9/decoder/vp9_decodemv.c95
1 files changed, 48 insertions, 47 deletions
diff --git a/libvpx/vp9/decoder/vp9_decodemv.c b/libvpx/vp9/decoder/vp9_decodemv.c
index 943fe478a..49c675394 100644
--- a/libvpx/vp9/decoder/vp9_decodemv.c
+++ b/libvpx/vp9/decoder/vp9_decodemv.c
@@ -444,17 +444,6 @@ static int read_is_inter_block(VP9_COMMON *const cm, MACROBLOCKD *const xd,
}
}
-static void dec_find_best_ref_mvs(int allow_hp, int_mv *mvlist, int_mv *best_mv,
- int refmv_count) {
- int i;
-
- // Make sure all the candidates are properly clamped etc
- for (i = 0; i < refmv_count; ++i) {
- lower_mv_precision(&mvlist[i].as_mv, allow_hp);
- *best_mv = mvlist[i];
- }
-}
-
// This macro is used to add a motion vector mv_ref list if it isn't
// already in the list. If it's the second motion vector or early_break
// it will also skip all additional processing and jump to Done!
@@ -494,7 +483,7 @@ static int dec_find_mv_refs(const VP9_COMMON *cm, const MACROBLOCKD *xd,
PREDICTION_MODE mode, MV_REFERENCE_FRAME ref_frame,
const POSITION *const mv_ref_search,
int_mv *mv_ref_list, int mi_row, int mi_col,
- int block, int is_sub8x8) {
+ int block) {
const int *ref_sign_bias = cm->ref_frame_sign_bias;
int i, refmv_count = 0;
int different_ref_found = 0;
@@ -511,7 +500,7 @@ static int dec_find_mv_refs(const VP9_COMMON *cm, const MACROBLOCKD *xd,
memset(mv_ref_list, 0, sizeof(*mv_ref_list) * MAX_MV_REF_CANDIDATES);
i = 0;
- if (is_sub8x8) {
+ if (block >= 0) {
// If the size < 8x8 we get the mv from the bmi substructure for the
// nearest two blocks.
for (i = 0; i < 2; ++i) {
@@ -628,19 +617,22 @@ static void append_sub8x8_mvs_for_idx(VP9_COMMON *cm, MACROBLOCKD *xd,
assert(MAX_MV_REF_CANDIDATES == 2);
- refmv_count =
- dec_find_mv_refs(cm, xd, b_mode, mi->ref_frame[ref], mv_ref_search,
- mv_list, mi_row, mi_col, block, 1);
-
switch (block) {
- case 0: best_sub8x8->as_int = mv_list[refmv_count - 1].as_int; break;
+ case 0:
+ refmv_count =
+ dec_find_mv_refs(cm, xd, b_mode, mi->ref_frame[ref], mv_ref_search,
+ mv_list, mi_row, mi_col, block);
+ best_sub8x8->as_int = mv_list[refmv_count - 1].as_int;
+ break;
case 1:
case 2:
if (b_mode == NEARESTMV) {
best_sub8x8->as_int = bmi[0].as_mv[ref].as_int;
} else {
+ dec_find_mv_refs(cm, xd, b_mode, mi->ref_frame[ref], mv_ref_search,
+ mv_list, mi_row, mi_col, block);
best_sub8x8->as_int = 0;
- for (n = 0; n < refmv_count; ++n)
+ for (n = 0; n < 2; ++n)
if (bmi[0].as_mv[ref].as_int != mv_list[n].as_int) {
best_sub8x8->as_int = mv_list[n].as_int;
break;
@@ -651,15 +643,20 @@ static void append_sub8x8_mvs_for_idx(VP9_COMMON *cm, MACROBLOCKD *xd,
if (b_mode == NEARESTMV) {
best_sub8x8->as_int = bmi[2].as_mv[ref].as_int;
} else {
- int_mv candidates[2 + MAX_MV_REF_CANDIDATES];
- candidates[0] = bmi[1].as_mv[ref];
- candidates[1] = bmi[0].as_mv[ref];
- candidates[2] = mv_list[0];
- candidates[3] = mv_list[1];
best_sub8x8->as_int = 0;
- for (n = 0; n < 2 + MAX_MV_REF_CANDIDATES; ++n)
- if (bmi[2].as_mv[ref].as_int != candidates[n].as_int) {
- best_sub8x8->as_int = candidates[n].as_int;
+ if (bmi[2].as_mv[ref].as_int != bmi[1].as_mv[ref].as_int) {
+ best_sub8x8->as_int = bmi[1].as_mv[ref].as_int;
+ break;
+ }
+ if (bmi[2].as_mv[ref].as_int != bmi[0].as_mv[ref].as_int) {
+ best_sub8x8->as_int = bmi[0].as_mv[ref].as_int;
+ break;
+ }
+ dec_find_mv_refs(cm, xd, b_mode, mi->ref_frame[ref], mv_ref_search,
+ mv_list, mi_row, mi_col, block);
+ for (n = 0; n < 2; ++n)
+ if (bmi[2].as_mv[ref].as_int != mv_list[n].as_int) {
+ best_sub8x8->as_int = mv_list[n].as_int;
break;
}
}
@@ -715,26 +712,6 @@ static void read_inter_block_mode_info(VP9Decoder *const pbi,
} else {
if (bsize >= BLOCK_8X8)
mi->mode = read_inter_mode(cm, xd, r, inter_mode_ctx);
- else
- // Sub 8x8 blocks use the nearestmv as a ref_mv if the b_mode is NEWMV.
- // Setting mode to NEARESTMV forces the search to stop after the nearestmv
- // has been found. After b_modes have been read, mode will be overwritten
- // by the last b_mode.
- mi->mode = NEARESTMV;
-
- if (mi->mode != ZEROMV) {
- for (ref = 0; ref < 1 + is_compound; ++ref) {
- int_mv tmp_mvs[MAX_MV_REF_CANDIDATES];
- const MV_REFERENCE_FRAME frame = mi->ref_frame[ref];
- int refmv_count;
-
- refmv_count = dec_find_mv_refs(cm, xd, mi->mode, frame, mv_ref_search,
- tmp_mvs, mi_row, mi_col, -1, 0);
-
- dec_find_best_ref_mvs(allow_hp, tmp_mvs, &best_ref_mvs[ref],
- refmv_count);
- }
- }
}
mi->interp_filter = (cm->interp_filter == SWITCHABLE)
@@ -746,6 +723,7 @@ static void read_inter_block_mode_info(VP9Decoder *const pbi,
const int num_4x4_h = 1 << xd->bmode_blocks_hl;
int idx, idy;
PREDICTION_MODE b_mode;
+ int got_mv_refs_for_new = 0;
int_mv best_sub8x8[2];
const uint32_t invalid_mv = 0x80008000;
// Initialize the 2nd element as even though it won't be used meaningfully
@@ -760,6 +738,18 @@ static void read_inter_block_mode_info(VP9Decoder *const pbi,
for (ref = 0; ref < 1 + is_compound; ++ref)
append_sub8x8_mvs_for_idx(cm, xd, mv_ref_search, b_mode, j, ref,
mi_row, mi_col, &best_sub8x8[ref]);
+ } else if (b_mode == NEWMV && !got_mv_refs_for_new) {
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ int_mv tmp_mvs[MAX_MV_REF_CANDIDATES];
+ const MV_REFERENCE_FRAME frame = mi->ref_frame[ref];
+
+ dec_find_mv_refs(cm, xd, NEWMV, frame, mv_ref_search, tmp_mvs,
+ mi_row, mi_col, -1);
+
+ lower_mv_precision(&tmp_mvs[0].as_mv, allow_hp);
+ best_ref_mvs[ref] = tmp_mvs[0];
+ got_mv_refs_for_new = 1;
+ }
}
if (!assign_mv(cm, xd, b_mode, mi->bmi[j].as_mv, best_ref_mvs,
@@ -777,6 +767,17 @@ static void read_inter_block_mode_info(VP9Decoder *const pbi,
copy_mv_pair(mi->mv, mi->bmi[3].as_mv);
} else {
+ if (mi->mode != ZEROMV) {
+ for (ref = 0; ref < 1 + is_compound; ++ref) {
+ int_mv tmp_mvs[MAX_MV_REF_CANDIDATES];
+ const MV_REFERENCE_FRAME frame = mi->ref_frame[ref];
+ int refmv_count =
+ dec_find_mv_refs(cm, xd, mi->mode, frame, mv_ref_search, tmp_mvs,
+ mi_row, mi_col, -1);
+ lower_mv_precision(&tmp_mvs[refmv_count - 1].as_mv, allow_hp);
+ best_ref_mvs[ref] = tmp_mvs[refmv_count - 1];
+ }
+ }
xd->corrupted |= !assign_mv(cm, xd, mi->mode, mi->mv, best_ref_mvs,
best_ref_mvs, is_compound, allow_hp, r);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 15:56:06 +0000