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Linshizhi
ffmpeg.wasm-core
Commits
696141e8
Commit
696141e8
authored
Dec 02, 2014
by
Vittorio Giovara
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vf_interlace: use image width rather than linesize
Based on a patch by Michael Niedermayer <michaelni@gmx.at>.
parent
fe082998
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5 additions
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4 deletions
+5
-4
vf_interlace.c
libavfilter/vf_interlace.c
+5
-4
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libavfilter/vf_interlace.c
View file @
696141e8
...
...
@@ -131,16 +131,17 @@ static void copy_picture_field(InterlaceContext *s,
int
lowpass
)
{
const
AVPixFmtDescriptor
*
desc
=
av_pix_fmt_desc_get
(
inlink
->
format
);
int
hsub
=
desc
->
log2_chroma_w
;
int
vsub
=
desc
->
log2_chroma_h
;
int
plane
,
j
;
for
(
plane
=
0
;
plane
<
desc
->
nb_components
;
plane
++
)
{
int
cols
=
(
plane
==
1
||
plane
==
2
)
?
-
(
-
inlink
->
w
)
>>
hsub
:
inlink
->
w
;
int
lines
=
(
plane
==
1
||
plane
==
2
)
?
-
(
-
inlink
->
h
)
>>
vsub
:
inlink
->
h
;
ptrdiff_t
linesize
=
av_image_get_linesize
(
inlink
->
format
,
inlink
->
w
,
plane
);
uint8_t
*
dstp
=
dst_frame
->
data
[
plane
];
const
uint8_t
*
srcp
=
src_frame
->
data
[
plane
];
av_assert0
(
linesize
>=
0
);
av_assert0
(
cols
>=
0
);
lines
=
(
lines
+
(
field_type
==
FIELD_UPPER
))
/
2
;
if
(
field_type
==
FIELD_LOWER
)
...
...
@@ -157,14 +158,14 @@ static void copy_picture_field(InterlaceContext *s,
srcp_above
=
srcp
;
// there is no line above
if
(
j
==
1
)
srcp_below
=
srcp
;
// there is no line below
s
->
lowpass_line
(
dstp
,
linesize
,
srcp
,
srcp_above
,
srcp_below
);
s
->
lowpass_line
(
dstp
,
cols
,
srcp
,
srcp_above
,
srcp_below
);
dstp
+=
dstp_linesize
;
srcp
+=
srcp_linesize
;
}
}
else
{
av_image_copy_plane
(
dstp
,
dst_frame
->
linesize
[
plane
]
*
2
,
srcp
,
src_frame
->
linesize
[
plane
]
*
2
,
linesize
,
lines
);
cols
,
lines
);
}
}
}
...
...
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