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avcodec/vc1: fix overlap and loop filtering for Simple and Main profile

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Overlap filtering I and BI frames for Simple and Main profile is only
dependent on PQUANT. Restrict testing for CONDOVER and OVERFLAGS to
advanced profile. Change from mb_width to end_mb_x in ff_vc1_i_loop_filter
to avoid breaking the Microsoft Screen 2 decoder.

Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
This commit is contained in:
Jerome Borsboom 2018-06-08 11:01:20 +02:00 committed by Carl Eugen Hoyos
parent a43cdd7693
commit a8622497d3
1 changed files with 20 additions and 15 deletions
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35
libavcodec/vc1_loopfilter.c
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@ -108,8 +108,10 @@ void ff_vc1_i_overlap_filter(VC1Context *v)
if (s->mb_x == 0 && (i & 5) != 1)
continue;
if (v->pq >= 9 || v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos] && ((i & 5) == 1 || v->over_flags_plane[mb_pos - 1])))
if (v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
(v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos] &&
((i & 5) == 1 || v->over_flags_plane[mb_pos - 1])))))
vc1_h_overlap_filter(v, s->mb_x ? left_blk : cur_blk, cur_blk, i);
}
@ -118,15 +120,18 @@ void ff_vc1_i_overlap_filter(VC1Context *v)
if (s->first_slice_line && !(i & 2))
continue;
if (s->mb_x && (v->pq >= 9 || v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos - 1] &&
((i & 2) || v->over_flags_plane[mb_pos - 1 - s->mb_stride]))))
if (s->mb_x &&
(v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
(v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos - 1] &&
((i & 2) || v->over_flags_plane[mb_pos - 1 - s->mb_stride]))))))
vc1_v_overlap_filter(v, s->first_slice_line ? left_blk : topleft_blk, left_blk, i);
if (s->mb_x == s->mb_width - 1)
if (v->pq >= 9 || v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos] &&
((i & 2) || v->over_flags_plane[mb_pos - s->mb_stride])))
vc1_v_overlap_filter(v, s->first_slice_line ? cur_blk : top_blk, cur_blk, i);
if (s->mb_x == s->mb_width - 1 &&
(v->pq >= 9 || (v->profile == PROFILE_ADVANCED &&
(v->condover == CONDOVER_ALL ||
(v->over_flags_plane[mb_pos] &&
((i & 2) || v->over_flags_plane[mb_pos - s->mb_stride]))))))
vc1_v_overlap_filter(v, s->first_slice_line ? cur_blk : top_blk, cur_blk, i);
}
}
@ -260,7 +265,7 @@ void ff_vc1_i_loop_filter(VC1Context *v)
for (i = 0; i < block_count; i++)
vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest, flags, fieldtx, i);
}
if (s->mb_x == s->mb_width - 1) {
if (s->mb_x == v->end_mb_x - 1) {
dest += 16;
fieldtx = v->fieldtx_plane[mb_pos - s->mb_stride];
for (i = 0; i < block_count; i++)
@ -275,7 +280,7 @@ void ff_vc1_i_loop_filter(VC1Context *v)
for (i = 0; i < block_count; i++)
vc1_i_v_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 : dest, flags, fieldtx, i);
}
if (s->mb_x == s->mb_width - 1) {
if (s->mb_x == v->end_mb_x - 1) {
dest += 16;
fieldtx = v->fieldtx_plane[mb_pos];
for (i = 0; i < block_count; i++)
@ -290,7 +295,7 @@ void ff_vc1_i_loop_filter(VC1Context *v)
for (i = 0; i < block_count; i++)
vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 16 * s->uvlinesize - 8 : dest, flags, i);
}
if (s->mb_x == s->mb_width - 1) {
if (s->mb_x == v->end_mb_x - 1) {
dest += 16;
flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
for (i = 0; i < block_count; i++)
@ -305,7 +310,7 @@ void ff_vc1_i_loop_filter(VC1Context *v)
for (i = 0; i < block_count; i++)
vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest, flags, i);
}
if (s->mb_x == s->mb_width - 1) {
if (s->mb_x == v->end_mb_x - 1) {
flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
dest += 16;
for (i = 0; i < block_count; i++)
@ -318,7 +323,7 @@ void ff_vc1_i_loop_filter(VC1Context *v)
for (i = 0; i < block_count; i++)
vc1_i_h_loop_filter(v, i > 3 ? s->dest[i - 3] - 8 : dest, flags, i);
}
if (s->mb_x == s->mb_width - 1) {
if (s->mb_x == v->end_mb_x - 1) {
dest += 16;
flags = s->mb_x == 0 ? LEFT_EDGE | RIGHT_EDGE : RIGHT_EDGE;
for (i = 0; i < block_count; i++)