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Linshizhi
ffmpeg.wasm-core
Commits
1ba909fa
Commit
1ba909fa
authored
Dec 28, 2018
by
Paul B Mahol
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avfilter/af_afir: use segment pointer
parent
30bf54b9
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Showing
1 changed file
with
20 additions
and
19 deletions
+20
-19
af_afir.c
libavfilter/af_afir.c
+20
-19
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libavfilter/af_afir.c
View file @
1ba909fa
...
...
@@ -59,42 +59,43 @@ static void fcmul_add_c(float *sum, const float *t, const float *c, ptrdiff_t le
static
int
fir_channel
(
AVFilterContext
*
ctx
,
void
*
arg
,
int
ch
,
int
nb_jobs
)
{
AudioFIRContext
*
s
=
ctx
->
priv
;
AudioFIRSegment
*
seg
=
&
s
->
seg
;
const
float
*
src
=
(
const
float
*
)
s
->
in
[
0
]
->
extended_data
[
ch
];
float
*
sum
=
(
float
*
)
s
->
seg
.
sum
->
extended_data
[
ch
];
float
*
sum
=
(
float
*
)
s
eg
->
sum
->
extended_data
[
ch
];
AVFrame
*
out
=
arg
;
float
*
block
,
*
dst
,
*
ptr
;
int
n
,
i
,
j
;
memset
(
sum
,
0
,
sizeof
(
*
sum
)
*
s
->
seg
.
fft_length
);
block
=
(
float
*
)
s
->
seg
.
block
->
extended_data
[
ch
]
+
s
->
seg
.
part_index
*
s
->
seg
.
block_size
;
memset
(
block
,
0
,
sizeof
(
*
block
)
*
s
->
seg
.
fft_length
);
memset
(
sum
,
0
,
sizeof
(
*
sum
)
*
s
eg
->
fft_length
);
block
=
(
float
*
)
s
eg
->
block
->
extended_data
[
ch
]
+
seg
->
part_index
*
seg
->
block_size
;
memset
(
block
,
0
,
sizeof
(
*
block
)
*
s
eg
->
fft_length
);
s
->
fdsp
->
vector_fmul_scalar
(
block
,
src
,
s
->
dry_gain
,
FFALIGN
(
out
->
nb_samples
,
4
));
emms_c
();
av_rdft_calc
(
s
->
seg
.
rdft
[
ch
],
block
);
block
[
2
*
s
->
seg
.
part_size
]
=
block
[
1
];
av_rdft_calc
(
s
eg
->
rdft
[
ch
],
block
);
block
[
2
*
s
eg
->
part_size
]
=
block
[
1
];
block
[
1
]
=
0
;
j
=
s
->
seg
.
part_index
;
j
=
s
eg
->
part_index
;
for
(
i
=
0
;
i
<
s
->
seg
.
nb_partitions
;
i
++
)
{
const
int
coffset
=
i
*
s
->
seg
.
coeff_size
;
const
float
*
block
=
(
const
float
*
)
s
->
seg
.
block
->
extended_data
[
ch
]
+
j
*
s
->
seg
.
block_size
;
const
FFTComplex
*
coeff
=
s
->
seg
.
coeff
[
ch
*
!
s
->
one2many
]
+
coffset
;
for
(
i
=
0
;
i
<
s
eg
->
nb_partitions
;
i
++
)
{
const
int
coffset
=
i
*
s
eg
->
coeff_size
;
const
float
*
block
=
(
const
float
*
)
s
eg
->
block
->
extended_data
[
ch
]
+
j
*
seg
->
block_size
;
const
FFTComplex
*
coeff
=
s
eg
->
coeff
[
ch
*
!
s
->
one2many
]
+
coffset
;
s
->
fcmul_add
(
sum
,
block
,
(
const
float
*
)
coeff
,
s
->
seg
.
part_size
);
s
->
fcmul_add
(
sum
,
block
,
(
const
float
*
)
coeff
,
s
eg
->
part_size
);
if
(
j
==
0
)
j
=
s
->
seg
.
nb_partitions
;
j
=
s
eg
->
nb_partitions
;
j
--
;
}
sum
[
1
]
=
sum
[
2
*
s
->
seg
.
part_size
];
av_rdft_calc
(
s
->
seg
.
irdft
[
ch
],
sum
);
sum
[
1
]
=
sum
[
2
*
s
eg
->
part_size
];
av_rdft_calc
(
s
eg
->
irdft
[
ch
],
sum
);
dst
=
(
float
*
)
s
->
seg
.
buffer
->
extended_data
[
ch
];
for
(
n
=
0
;
n
<
s
->
seg
.
part_size
;
n
++
)
{
dst
=
(
float
*
)
s
eg
->
buffer
->
extended_data
[
ch
];
for
(
n
=
0
;
n
<
s
eg
->
part_size
;
n
++
)
{
dst
[
n
]
+=
sum
[
n
];
}
...
...
@@ -102,8 +103,8 @@ static int fir_channel(AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
s
->
fdsp
->
vector_fmul_scalar
(
ptr
,
dst
,
s
->
wet_gain
,
FFALIGN
(
out
->
nb_samples
,
4
));
emms_c
();
dst
=
(
float
*
)
s
->
seg
.
buffer
->
extended_data
[
ch
];
memcpy
(
dst
,
sum
+
s
->
seg
.
part_size
,
s
->
seg
.
part_size
*
sizeof
(
*
dst
));
dst
=
(
float
*
)
s
eg
->
buffer
->
extended_data
[
ch
];
memcpy
(
dst
,
sum
+
s
eg
->
part_size
,
seg
->
part_size
*
sizeof
(
*
dst
));
return
0
;
}
...
...
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