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Linshizhi
ffmpeg.wasm-core
Commits
f44ad92c
Commit
f44ad92c
authored
Oct 31, 2011
by
Michael Niedermayer
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sws: print a warning on unaligned input on SSE2+
Signed-off-by:
Michael Niedermayer
<
michaelni@gmx.at
>
parent
fbf4b390
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swscale.c
libswscale/swscale.c
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libswscale/swscale.c
View file @
f44ad92c
...
...
@@ -2539,6 +2539,18 @@ static int swScale(SwsContext *c, const uint8_t* src[],
}
}
if
((
int
)
dst
[
0
]
%
16
||
(
int
)
dst
[
1
]
%
16
||
(
int
)
dst
[
2
]
%
16
||
(
int
)
src
[
0
]
%
16
||
(
int
)
src
[
1
]
%
16
||
(
int
)
src
[
2
]
%
16
||
dstStride
[
0
]
%
16
||
dstStride
[
1
]
%
16
||
dstStride
[
2
]
%
16
||
dstStride
[
3
]
%
16
||
srcStride
[
0
]
%
16
||
srcStride
[
1
]
%
16
||
srcStride
[
2
]
%
16
||
srcStride
[
3
]
%
16
)
{
static
int
warnedAlready
=
0
;
int
cpu_flags
=
av_get_cpu_flags
();
if
(
HAVE_MMX2
&&
(
cpu_flags
&
AV_CPU_FLAG_SSE2
)
&&
!
warnedAlready
){
av_log
(
c
,
AV_LOG_WARNING
,
"Warning: data is not aligned! This can lead to a speedloss
\n
"
);
warnedAlready
=
1
;
}
}
/* Note the user might start scaling the picture in the middle so this
will not get executed. This is not really intended but works
currently, so people might do it. */
...
...
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