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Linshizhi
ffmpeg.wasm-core
Commits
8c8bbd10
Commit
8c8bbd10
authored
May 27, 2004
by
Michael Niedermayer
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faster c lowpass filter
Originally committed as revision 3164 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
12eebd26
Hide whitespace changes
Inline
Side-by-side
Showing
2 changed files
with
40 additions
and
39 deletions
+40
-39
postprocess.c
libavcodec/libpostproc/postprocess.c
+20
-20
postprocess_template.c
libavcodec/libpostproc/postprocess_template.c
+20
-19
No files found.
libavcodec/libpostproc/postprocess.c
View file @
8c8bbd10
...
...
@@ -376,32 +376,32 @@ static inline void doHorizDefFilter_C(uint8_t dst[], int stride, PPContext *c)
*/
static
inline
void
doHorizLowPass_C
(
uint8_t
dst
[],
int
stride
,
PPContext
*
c
)
{
int
y
;
for
(
y
=
0
;
y
<
BLOCK_SIZE
;
y
++
)
{
const
int
first
=
ABS
(
dst
[
-
1
]
-
dst
[
0
])
<
c
->
QP
?
dst
[
-
1
]
:
dst
[
0
];
const
int
last
=
ABS
(
dst
[
8
]
-
dst
[
7
])
<
c
->
QP
?
dst
[
8
]
:
dst
[
7
];
int
sums
[
9
];
sums
[
0
]
=
first
+
dst
[
0
];
sums
[
1
]
=
dst
[
0
]
+
dst
[
1
];
sums
[
2
]
=
dst
[
1
]
+
dst
[
2
];
sums
[
3
]
=
dst
[
2
]
+
dst
[
3
];
sums
[
4
]
=
dst
[
3
]
+
dst
[
4
];
sums
[
5
]
=
dst
[
4
]
+
dst
[
5
];
sums
[
6
]
=
dst
[
5
]
+
dst
[
6
];
sums
[
7
]
=
dst
[
6
]
+
dst
[
7
];
sums
[
8
]
=
dst
[
7
]
+
last
;
dst
[
0
]
=
((
sums
[
0
]
<<
2
)
+
((
first
+
sums
[
2
])
<<
1
)
+
sums
[
4
]
+
8
)
>>
4
;
dst
[
1
]
=
((
dst
[
1
]
<<
2
)
+
((
first
+
sums
[
0
]
+
sums
[
3
])
<<
1
)
+
sums
[
5
]
+
8
)
>>
4
;
dst
[
2
]
=
((
dst
[
2
]
<<
2
)
+
((
first
+
sums
[
1
]
+
sums
[
4
])
<<
1
)
+
sums
[
6
]
+
8
)
>>
4
;
dst
[
3
]
=
((
dst
[
3
]
<<
2
)
+
((
sums
[
2
]
+
sums
[
5
])
<<
1
)
+
sums
[
0
]
+
sums
[
7
]
+
8
)
>>
4
;
dst
[
4
]
=
((
dst
[
4
]
<<
2
)
+
((
sums
[
3
]
+
sums
[
6
])
<<
1
)
+
sums
[
1
]
+
sums
[
8
]
+
8
)
>>
4
;
dst
[
5
]
=
((
dst
[
5
]
<<
2
)
+
((
last
+
sums
[
7
]
+
sums
[
4
])
<<
1
)
+
sums
[
2
]
+
8
)
>>
4
;
dst
[
6
]
=
(((
last
+
dst
[
6
])
<<
2
)
+
((
dst
[
7
]
+
sums
[
5
])
<<
1
)
+
sums
[
3
]
+
8
)
>>
4
;
dst
[
7
]
=
((
sums
[
8
]
<<
2
)
+
((
last
+
sums
[
6
])
<<
1
)
+
sums
[
4
]
+
8
)
>>
4
;
int
sums
[
10
];
sums
[
0
]
=
4
*
first
+
dst
[
0
]
+
dst
[
1
]
+
dst
[
2
]
+
4
;
sums
[
1
]
=
sums
[
0
]
-
first
+
dst
[
3
];
sums
[
2
]
=
sums
[
1
]
-
first
+
dst
[
4
];
sums
[
3
]
=
sums
[
2
]
-
first
+
dst
[
5
];
sums
[
4
]
=
sums
[
3
]
-
first
+
dst
[
6
];
sums
[
5
]
=
sums
[
4
]
-
dst
[
0
]
+
dst
[
7
];
sums
[
6
]
=
sums
[
5
]
-
dst
[
1
]
+
last
;
sums
[
7
]
=
sums
[
6
]
-
dst
[
2
]
+
last
;
sums
[
8
]
=
sums
[
7
]
-
dst
[
3
]
+
last
;
sums
[
9
]
=
sums
[
8
]
-
dst
[
4
]
+
last
;
dst
[
0
]
=
(
sums
[
0
]
+
sums
[
2
]
+
2
*
dst
[
0
])
>>
4
;
dst
[
1
]
=
(
sums
[
1
]
+
sums
[
3
]
+
2
*
dst
[
1
])
>>
4
;
dst
[
2
]
=
(
sums
[
2
]
+
sums
[
4
]
+
2
*
dst
[
2
])
>>
4
;
dst
[
3
]
=
(
sums
[
3
]
+
sums
[
5
]
+
2
*
dst
[
3
])
>>
4
;
dst
[
4
]
=
(
sums
[
4
]
+
sums
[
6
]
+
2
*
dst
[
4
])
>>
4
;
dst
[
5
]
=
(
sums
[
5
]
+
sums
[
7
]
+
2
*
dst
[
5
])
>>
4
;
dst
[
6
]
=
(
sums
[
6
]
+
sums
[
8
]
+
2
*
dst
[
6
])
>>
4
;
dst
[
7
]
=
(
sums
[
7
]
+
sums
[
9
]
+
2
*
dst
[
7
])
>>
4
;
dst
+=
stride
;
}
...
...
libavcodec/libpostproc/postprocess_template.c
View file @
8c8bbd10
...
...
@@ -317,25 +317,26 @@ static inline void RENAME(doVertLowPass)(uint8_t *src, int stride, PPContext *c)
const
int
first
=
ABS
(
src
[
0
]
-
src
[
l1
])
<
c
->
QP
?
src
[
0
]
:
src
[
l1
];
const
int
last
=
ABS
(
src
[
l8
]
-
src
[
l9
])
<
c
->
QP
?
src
[
l9
]
:
src
[
l8
];
int
sums
[
9
];
sums
[
0
]
=
first
+
src
[
l1
];
sums
[
1
]
=
src
[
l1
]
+
src
[
l2
];
sums
[
2
]
=
src
[
l2
]
+
src
[
l3
];
sums
[
3
]
=
src
[
l3
]
+
src
[
l4
];
sums
[
4
]
=
src
[
l4
]
+
src
[
l5
];
sums
[
5
]
=
src
[
l5
]
+
src
[
l6
];
sums
[
6
]
=
src
[
l6
]
+
src
[
l7
];
sums
[
7
]
=
src
[
l7
]
+
src
[
l8
];
sums
[
8
]
=
src
[
l8
]
+
last
;
src
[
l1
]
=
((
sums
[
0
]
<<
2
)
+
((
first
+
sums
[
2
])
<<
1
)
+
sums
[
4
]
+
8
)
>>
4
;
src
[
l2
]
=
((
src
[
l2
]
<<
2
)
+
((
first
+
sums
[
0
]
+
sums
[
3
])
<<
1
)
+
sums
[
5
]
+
8
)
>>
4
;
src
[
l3
]
=
((
src
[
l3
]
<<
2
)
+
((
first
+
sums
[
1
]
+
sums
[
4
])
<<
1
)
+
sums
[
6
]
+
8
)
>>
4
;
src
[
l4
]
=
((
src
[
l4
]
<<
2
)
+
((
sums
[
2
]
+
sums
[
5
])
<<
1
)
+
sums
[
0
]
+
sums
[
7
]
+
8
)
>>
4
;
src
[
l5
]
=
((
src
[
l5
]
<<
2
)
+
((
sums
[
3
]
+
sums
[
6
])
<<
1
)
+
sums
[
1
]
+
sums
[
8
]
+
8
)
>>
4
;
src
[
l6
]
=
((
src
[
l6
]
<<
2
)
+
((
last
+
sums
[
7
]
+
sums
[
4
])
<<
1
)
+
sums
[
2
]
+
8
)
>>
4
;
src
[
l7
]
=
(((
last
+
src
[
l7
])
<<
2
)
+
((
src
[
l8
]
+
sums
[
5
])
<<
1
)
+
sums
[
3
]
+
8
)
>>
4
;
src
[
l8
]
=
((
sums
[
8
]
<<
2
)
+
((
last
+
sums
[
6
])
<<
1
)
+
sums
[
4
]
+
8
)
>>
4
;
int
sums
[
10
];
sums
[
0
]
=
4
*
first
+
src
[
l1
]
+
src
[
l2
]
+
src
[
l3
]
+
4
;
sums
[
1
]
=
sums
[
0
]
-
first
+
src
[
l4
];
sums
[
2
]
=
sums
[
1
]
-
first
+
src
[
l5
];
sums
[
3
]
=
sums
[
2
]
-
first
+
src
[
l6
];
sums
[
4
]
=
sums
[
3
]
-
first
+
src
[
l7
];
sums
[
5
]
=
sums
[
4
]
-
src
[
l1
]
+
src
[
l8
];
sums
[
6
]
=
sums
[
5
]
-
src
[
l2
]
+
last
;
sums
[
7
]
=
sums
[
6
]
-
src
[
l3
]
+
last
;
sums
[
8
]
=
sums
[
7
]
-
src
[
l4
]
+
last
;
sums
[
9
]
=
sums
[
8
]
-
src
[
l5
]
+
last
;
src
[
l1
]
=
(
sums
[
0
]
+
sums
[
2
]
+
2
*
src
[
l1
])
>>
4
;
src
[
l2
]
=
(
sums
[
1
]
+
sums
[
3
]
+
2
*
src
[
l2
])
>>
4
;
src
[
l3
]
=
(
sums
[
2
]
+
sums
[
4
]
+
2
*
src
[
l3
])
>>
4
;
src
[
l4
]
=
(
sums
[
3
]
+
sums
[
5
]
+
2
*
src
[
l4
])
>>
4
;
src
[
l5
]
=
(
sums
[
4
]
+
sums
[
6
]
+
2
*
src
[
l5
])
>>
4
;
src
[
l6
]
=
(
sums
[
5
]
+
sums
[
7
]
+
2
*
src
[
l6
])
>>
4
;
src
[
l7
]
=
(
sums
[
6
]
+
sums
[
8
]
+
2
*
src
[
l7
])
>>
4
;
src
[
l8
]
=
(
sums
[
7
]
+
sums
[
9
]
+
2
*
src
[
l8
])
>>
4
;
src
++
;
}
...
...
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