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Stefan Westerfeld
ffmpeg
Commits
fc016fd6
Commit
fc016fd6
authored
Dec 04, 2022
by
Paul B Mahol
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avfilter/vf_exposure: ensure that scale is always > 0
parent
ec32c62c
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1
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3 additions
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1 deletion
+3
-1
vf_exposure.c
libavfilter/vf_exposure.c
+3
-1
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libavfilter/vf_exposure.c
View file @
fc016fd6
...
...
@@ -67,8 +67,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext
*
ctx
=
inlink
->
dst
;
ExposureContext
*
s
=
ctx
->
priv
;
float
diff
=
fabsf
(
exp2f
(
-
s
->
exposure
)
-
s
->
black
);
s
->
scale
=
1
.
f
/
(
exp2f
(
-
s
->
exposure
)
-
s
->
black
);
diff
=
diff
>
0
.
f
?
diff
:
1
.
f
/
1024
.
f
;
s
->
scale
=
1
.
f
/
diff
;
ff_filter_execute
(
ctx
,
s
->
do_slice
,
frame
,
NULL
,
FFMIN
(
frame
->
height
,
ff_filter_get_nb_threads
(
ctx
)));
...
...
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