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Linshizhi
ffmpeg.wasm-core
Commits
8dd3a53d
Commit
8dd3a53d
authored
Apr 30, 2017
by
Paul B Mahol
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avfilter/af_crystalizer: add support for more sample formats
Signed-off-by:
Paul B Mahol
<
onemda@gmail.com
>
parent
d535e0c1
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1 changed file
with
126 additions
and
22 deletions
+126
-22
af_crystalizer.c
libavfilter/af_crystalizer.c
+126
-22
No files found.
libavfilter/af_crystalizer.c
View file @
8dd3a53d
...
...
@@ -29,6 +29,8 @@ typedef struct CrystalizerContext {
float
mult
;
int
clip
;
AVFrame
*
prev
;
void
(
*
filter
)(
void
**
dst
,
void
**
prv
,
const
void
**
src
,
int
nb_samples
,
int
channels
,
float
mult
,
int
clip
);
}
CrystalizerContext
;
#define OFFSET(x) offsetof(CrystalizerContext, x)
...
...
@@ -46,10 +48,18 @@ static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats
*
formats
=
NULL
;
AVFilterChannelLayouts
*
layouts
=
NULL
;
static
const
enum
AVSampleFormat
sample_fmts
[]
=
{
AV_SAMPLE_FMT_FLT
,
AV_SAMPLE_FMT_FLTP
,
AV_SAMPLE_FMT_DBL
,
AV_SAMPLE_FMT_DBLP
,
AV_SAMPLE_FMT_NONE
};
int
ret
;
if
((
ret
=
ff_add_format
(
&
formats
,
AV_SAMPLE_FMT_FLT
))
<
0
||
(
ret
=
ff_set_common_formats
(
ctx
,
formats
))
<
0
)
formats
=
ff_make_format_list
(
sample_fmts
);
if
(
!
formats
)
return
AVERROR
(
ENOMEM
);
ret
=
ff_set_common_formats
(
ctx
,
formats
);
if
(
ret
<
0
)
return
ret
;
layouts
=
ff_all_channel_counts
();
...
...
@@ -64,16 +74,123 @@ static int query_formats(AVFilterContext *ctx)
return
ff_set_common_samplerates
(
ctx
,
formats
);
}
static
void
filter_flt
(
void
**
d
,
void
**
p
,
const
void
**
s
,
int
nb_samples
,
int
channels
,
float
mult
,
int
clip
)
{
const
float
*
src
=
s
[
0
];
float
*
dst
=
d
[
0
];
float
*
prv
=
p
[
0
];
int
n
,
c
;
for
(
n
=
0
;
n
<
nb_samples
;
n
++
)
{
for
(
c
=
0
;
c
<
channels
;
c
++
)
{
float
current
=
src
[
c
];
dst
[
c
]
=
current
+
(
current
-
prv
[
c
])
*
mult
;
prv
[
c
]
=
current
;
if
(
clip
)
{
dst
[
c
]
=
av_clipf
(
dst
[
c
],
-
1
,
1
);
}
}
dst
+=
c
;
src
+=
c
;
}
}
static
void
filter_dbl
(
void
**
d
,
void
**
p
,
const
void
**
s
,
int
nb_samples
,
int
channels
,
float
mult
,
int
clip
)
{
const
double
*
src
=
s
[
0
];
double
*
dst
=
d
[
0
];
double
*
prv
=
p
[
0
];
int
n
,
c
;
for
(
n
=
0
;
n
<
nb_samples
;
n
++
)
{
for
(
c
=
0
;
c
<
channels
;
c
++
)
{
double
current
=
src
[
c
];
dst
[
c
]
=
current
+
(
current
-
prv
[
c
])
*
mult
;
prv
[
c
]
=
current
;
if
(
clip
)
{
dst
[
c
]
=
av_clipd
(
dst
[
c
],
-
1
,
1
);
}
}
dst
+=
c
;
src
+=
c
;
}
}
static
void
filter_fltp
(
void
**
d
,
void
**
p
,
const
void
**
s
,
int
nb_samples
,
int
channels
,
float
mult
,
int
clip
)
{
int
n
,
c
;
for
(
c
=
0
;
c
<
channels
;
c
++
)
{
const
float
*
src
=
s
[
c
];
float
*
dst
=
d
[
c
];
float
*
prv
=
p
[
c
];
for
(
n
=
0
;
n
<
nb_samples
;
n
++
)
{
float
current
=
src
[
n
];
dst
[
n
]
=
current
+
(
current
-
prv
[
0
])
*
mult
;
prv
[
0
]
=
current
;
if
(
clip
)
{
dst
[
n
]
=
av_clipf
(
dst
[
n
],
-
1
,
1
);
}
}
}
}
static
void
filter_dblp
(
void
**
d
,
void
**
p
,
const
void
**
s
,
int
nb_samples
,
int
channels
,
float
mult
,
int
clip
)
{
int
n
,
c
;
for
(
c
=
0
;
c
<
channels
;
c
++
)
{
const
double
*
src
=
s
[
c
];
double
*
dst
=
d
[
c
];
double
*
prv
=
p
[
c
];
for
(
n
=
0
;
n
<
nb_samples
;
n
++
)
{
double
current
=
src
[
n
];
dst
[
n
]
=
current
+
(
current
-
prv
[
0
])
*
mult
;
prv
[
0
]
=
current
;
if
(
clip
)
{
dst
[
n
]
=
av_clipd
(
dst
[
n
],
-
1
,
1
);
}
}
}
}
static
int
config_input
(
AVFilterLink
*
inlink
)
{
AVFilterContext
*
ctx
=
inlink
->
dst
;
CrystalizerContext
*
s
=
ctx
->
priv
;
switch
(
inlink
->
format
)
{
case
AV_SAMPLE_FMT_FLT
:
s
->
filter
=
filter_flt
;
break
;
case
AV_SAMPLE_FMT_DBL
:
s
->
filter
=
filter_dbl
;
break
;
case
AV_SAMPLE_FMT_FLTP
:
s
->
filter
=
filter_fltp
;
break
;
case
AV_SAMPLE_FMT_DBLP
:
s
->
filter
=
filter_dblp
;
break
;
}
return
0
;
}
static
int
filter_frame
(
AVFilterLink
*
inlink
,
AVFrame
*
in
)
{
AVFilterContext
*
ctx
=
inlink
->
dst
;
AVFilterLink
*
outlink
=
ctx
->
outputs
[
0
];
CrystalizerContext
*
s
=
ctx
->
priv
;
const
float
*
src
=
(
const
float
*
)
in
->
data
[
0
];
const
float
mult
=
s
->
mult
;
AVFrame
*
out
;
float
*
dst
,
*
prv
;
int
n
,
c
;
if
(
!
s
->
prev
)
{
s
->
prev
=
ff_get_audio_buffer
(
inlink
,
1
);
...
...
@@ -94,22 +211,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
av_frame_copy_props
(
out
,
in
);
}
dst
=
(
float
*
)
out
->
data
[
0
];
prv
=
(
float
*
)
s
->
prev
->
data
[
0
];
for
(
n
=
0
;
n
<
in
->
nb_samples
;
n
++
)
{
for
(
c
=
0
;
c
<
in
->
channels
;
c
++
)
{
float
current
=
src
[
c
];
dst
[
c
]
=
current
+
(
current
-
prv
[
c
])
*
mult
;
prv
[
c
]
=
current
;
if
(
s
->
clip
)
{
dst
[
c
]
=
av_clipf
(
dst
[
c
],
-
1
,
1
);
}
}
dst
+=
c
;
src
+=
c
;
}
s
->
filter
((
void
**
)
out
->
extended_data
,
(
void
**
)
s
->
prev
->
extended_data
,
(
const
void
**
)
in
->
extended_data
,
in
->
nb_samples
,
in
->
channels
,
s
->
mult
,
s
->
clip
);
if
(
out
!=
in
)
av_frame_free
(
&
in
);
...
...
@@ -129,6 +232,7 @@ static const AVFilterPad inputs[] = {
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_AUDIO
,
.
filter_frame
=
filter_frame
,
.
config_props
=
config_input
,
},
{
NULL
}
};
...
...
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