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Linshizhi
ffmpeg.wasm-core
Commits
71d9ae11
Commit
71d9ae11
authored
Oct 11, 2019
by
Paul B Mahol
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avfilter/vf_signalstats: fix stack buffer overflow
Fixes #8249
parent
0e68e8c9
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vf_signalstats.c
libavfilter/vf_signalstats.c
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libavfilter/vf_signalstats.c
View file @
71d9ae11
...
...
@@ -491,7 +491,7 @@ static int compute_sat_hue_metrics8(AVFilterContext *ctx, void *arg, int jobnr,
const
int
yuvu
=
p_u
[
i
];
const
int
yuvv
=
p_v
[
i
];
p_sat
[
i
]
=
hypot
(
yuvu
-
128
,
yuvv
-
128
);
// int or round?
((
int16_t
*
)
p_hue
)[
i
]
=
f
loor
((
180
/
M_PI
)
*
atan2f
(
yuvu
-
128
,
yuvv
-
128
)
+
180
);
((
int16_t
*
)
p_hue
)[
i
]
=
f
mod
(
floor
((
180
/
M_PI
)
*
atan2f
(
yuvu
-
128
,
yuvv
-
128
)
+
180
),
360
.
);
}
p_u
+=
lsz_u
;
p_v
+=
lsz_v
;
...
...
@@ -530,7 +530,7 @@ static int compute_sat_hue_metrics16(AVFilterContext *ctx, void *arg, int jobnr,
const
int
yuvu
=
p_u
[
i
];
const
int
yuvv
=
p_v
[
i
];
p_sat
[
i
]
=
hypot
(
yuvu
-
mid
,
yuvv
-
mid
);
// int or round?
((
int16_t
*
)
p_hue
)[
i
]
=
f
loor
((
180
/
M_PI
)
*
atan2f
(
yuvu
-
mid
,
yuvv
-
mid
)
+
180
);
((
int16_t
*
)
p_hue
)[
i
]
=
f
mod
(
floor
((
180
/
M_PI
)
*
atan2f
(
yuvu
-
mid
,
yuvv
-
mid
)
+
180
),
360
.
);
}
p_u
+=
lsz_u
;
p_v
+=
lsz_v
;
...
...
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