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Linshizhi
ffmpeg.wasm-core
Commits
37ddd383
Commit
37ddd383
authored
May 04, 2012
by
Alex Converse
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celp filters: Do not read earlier than the start of the 'out' vector.
CC: libav-stable@libav.org
parent
313f9fbf
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1 addition
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3 deletions
+1
-3
celp_filters.c
libavcodec/celp_filters.c
+1
-3
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libavcodec/celp_filters.c
View file @
37ddd383
...
@@ -133,9 +133,8 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
...
@@ -133,9 +133,8 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
out2
-=
val
*
old_out2
;
out2
-=
val
*
old_out2
;
out3
-=
val
*
old_out3
;
out3
-=
val
*
old_out3
;
old_out3
=
out
[
-
5
];
for
(
i
=
5
;
i
<=
filter_length
;
i
+=
2
)
{
for
(
i
=
5
;
i
<=
filter_length
;
i
+=
2
)
{
old_out3
=
out
[
-
i
];
val
=
filter_coeffs
[
i
-
1
];
val
=
filter_coeffs
[
i
-
1
];
out0
-=
val
*
old_out3
;
out0
-=
val
*
old_out3
;
...
@@ -154,7 +153,6 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
...
@@ -154,7 +153,6 @@ void ff_celp_lp_synthesis_filterf(float *out, const float *filter_coeffs,
FFSWAP
(
float
,
old_out0
,
old_out2
);
FFSWAP
(
float
,
old_out0
,
old_out2
);
old_out1
=
old_out3
;
old_out1
=
old_out3
;
old_out3
=
out
[
-
i
-
2
];
}
}
tmp0
=
out0
;
tmp0
=
out0
;
...
...
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