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Linshizhi
ffmpeg.wasm-core
Commits
898635ad
Commit
898635ad
authored
Nov 03, 2014
by
Michael Niedermayer
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avfilter/vf_idet: use exp2()
Signed-off-by:
Michael Niedermayer
<
michaelni@gmx.at
>
parent
4bbd8f05
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vf_idet.c
libavfilter/vf_idet.c
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libavfilter/vf_idet.c
View file @
898635ad
...
...
@@ -324,7 +324,7 @@ static av_cold int init(AVFilterContext *ctx)
memset
(
idet
->
history
,
UNDETERMINED
,
HIST_SIZE
);
if
(
idet
->
half_life
>
0
)
idet
->
decay_coefficient
=
(
uint64_t
)
round
(
PRECISION
*
pow
(
2
.
0
,
-
1
.
0
/
idet
->
half_life
)
);
idet
->
decay_coefficient
=
(
uint64_t
)
round
(
PRECISION
*
exp2
(
-
1
.
0
/
idet
->
half_life
)
);
else
idet
->
decay_coefficient
=
PRECISION
;
...
...
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