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0154bae1
编写于
7月 28, 2006
作者:
K
Kostya Shishkov
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Add rounding for overlap filters
Originally committed as revision 5834 to
svn://svn.ffmpeg.org/ffmpeg/trunk
上级
b2828252
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
28 addition
and
28 deletion
+28
-28
libavcodec/vc1.c
libavcodec/vc1.c
+28
-28
未找到文件。
libavcodec/vc1.c
浏览文件 @
0154bae1
...
...
@@ -831,7 +831,7 @@ static void vc1_inv_trans(DCTELEM block[64], int M, int N)
* @todo optimize
* @todo move to DSPContext
*/
static
void
vc1_v_overlap
(
uint8_t
*
src
,
int
stride
)
static
void
vc1_v_overlap
(
uint8_t
*
src
,
int
stride
,
int
rnd
)
{
int
i
;
int
a
,
b
,
c
,
d
;
...
...
@@ -841,10 +841,10 @@ static void vc1_v_overlap(uint8_t* src, int stride)
c
=
src
[
0
];
d
=
src
[
stride
];
src
[
-
2
*
stride
]
=
clip_uint8
((
7
*
a
+
d
+
3
)
>>
3
);
src
[
-
stride
]
=
clip_uint8
((
-
a
+
7
*
b
+
c
+
d
+
3
)
>>
3
);
src
[
0
]
=
clip_uint8
((
a
+
b
+
7
*
c
-
d
+
3
)
>>
3
);
src
[
stride
]
=
clip_uint8
((
a
+
7
*
d
+
3
)
>>
3
);
src
[
-
2
*
stride
]
=
clip_uint8
((
7
*
a
+
d
+
4
-
rnd
)
>>
3
);
src
[
-
stride
]
=
clip_uint8
((
-
a
+
7
*
b
+
c
+
d
+
3
+
rnd
)
>>
3
);
src
[
0
]
=
clip_uint8
((
a
+
b
+
7
*
c
-
d
+
4
-
rnd
)
>>
3
);
src
[
stride
]
=
clip_uint8
((
a
+
7
*
d
+
3
+
rnd
)
>>
3
);
src
++
;
}
}
...
...
@@ -853,7 +853,7 @@ static void vc1_v_overlap(uint8_t* src, int stride)
* @todo optimize
* @todo move to DSPContext
*/
static
void
vc1_h_overlap
(
uint8_t
*
src
,
int
stride
)
static
void
vc1_h_overlap
(
uint8_t
*
src
,
int
stride
,
int
rnd
)
{
int
i
;
int
a
,
b
,
c
,
d
;
...
...
@@ -863,10 +863,10 @@ static void vc1_h_overlap(uint8_t* src, int stride)
c
=
src
[
0
];
d
=
src
[
1
];
src
[
-
2
]
=
clip_uint8
((
7
*
a
+
d
+
3
)
>>
3
);
src
[
-
1
]
=
clip_uint8
((
-
a
+
7
*
b
+
c
+
d
+
3
)
>>
3
);
src
[
0
]
=
clip_uint8
((
a
+
b
+
7
*
c
-
d
+
3
)
>>
3
);
src
[
1
]
=
clip_uint8
((
a
+
7
*
d
+
3
)
>>
3
);
src
[
-
2
]
=
clip_uint8
((
7
*
a
+
d
+
4
-
rnd
)
>>
3
);
src
[
-
1
]
=
clip_uint8
((
-
a
+
7
*
b
+
c
+
d
+
3
+
rnd
)
>>
3
);
src
[
0
]
=
clip_uint8
((
a
+
b
+
7
*
c
-
d
+
4
-
rnd
)
>>
3
);
src
[
1
]
=
clip_uint8
((
a
+
7
*
d
+
3
+
rnd
)
>>
3
);
src
+=
stride
;
}
}
...
...
@@ -2571,9 +2571,9 @@ static int vc1_decode_p_mb(VC1Context *v)
/* TODO: proper loop filtering */
if
(
v
->
pq
>=
9
&&
v
->
overlap
)
{
if
(
v
->
a_avail
)
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
((
i
&
1
)
>>
1
)
:
(
s
->
mb_y
&
1
)
);
if
(
v
->
c_avail
)
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
(
i
&
1
)
:
(
s
->
mb_x
&
1
)
);
}
}
else
if
(
val
)
{
vc1_decode_p_block
(
v
,
s
->
block
[
i
],
i
,
mquant
,
ttmb
,
first_block
);
...
...
@@ -2672,9 +2672,9 @@ static int vc1_decode_p_mb(VC1Context *v)
/* TODO: proper loop filtering */
if
(
v
->
pq
>=
9
&&
v
->
overlap
)
{
if
(
v
->
a_avail
)
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
((
i
&
1
)
>>
1
)
:
(
s
->
mb_y
&
1
)
);
if
(
v
->
c_avail
)
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
(
i
&
1
)
:
(
s
->
mb_x
&
1
)
);
}
}
else
if
(
is_coded
[
i
])
{
status
=
vc1_decode_p_block
(
v
,
s
->
block
[
i
],
i
,
mquant
,
ttmb
,
first_block
);
...
...
@@ -2835,9 +2835,9 @@ static void vc1_decode_b_mb(VC1Context *v)
/* TODO: proper loop filtering */
if
(
v
->
pq
>=
9
&&
v
->
overlap
)
{
if
(
v
->
a_avail
)
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_v_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
((
i
&
1
)
>>
1
)
:
(
s
->
mb_y
&
1
)
);
if
(
v
->
c_avail
)
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
));
vc1_h_overlap
(
s
->
dest
[
dst_idx
]
+
off
,
s
->
linesize
>>
((
i
&
4
)
>>
2
)
,
(
i
<
4
)
?
(
i
&
1
)
:
(
s
->
mb_x
&
1
)
);
}
}
else
if
(
val
)
{
vc1_decode_p_block
(
v
,
s
->
block
[
i
],
i
,
mquant
,
ttmb
,
first_block
);
...
...
@@ -2926,21 +2926,21 @@ static void vc1_decode_i_blocks(VC1Context *v)
vc1_put_block
(
v
,
s
->
block
);
if
(
v
->
pq
>=
9
&&
v
->
overlap
)
{
/* XXX: do proper overlapping insted of loop filter */
if
(
!
s
->
first_slice_line
)
{
vc1_v_overlap
(
s
->
dest
[
0
],
s
->
linesize
);
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
,
s
->
linesize
);
vc1_v_overlap
(
s
->
dest
[
1
],
s
->
uvlinesize
);
vc1_v_overlap
(
s
->
dest
[
2
],
s
->
uvlinesize
);
vc1_v_overlap
(
s
->
dest
[
0
],
s
->
linesize
,
0
);
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
,
s
->
linesize
,
0
);
vc1_v_overlap
(
s
->
dest
[
1
],
s
->
uvlinesize
,
s
->
mb_y
&
1
);
vc1_v_overlap
(
s
->
dest
[
2
],
s
->
uvlinesize
,
s
->
mb_y
&
1
);
}
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
,
s
->
linesize
);
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
+
8
,
s
->
linesize
);
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
,
s
->
linesize
,
1
);
vc1_v_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
+
8
,
s
->
linesize
,
1
);
if
(
s
->
mb_x
)
{
vc1_h_overlap
(
s
->
dest
[
0
],
s
->
linesize
);
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
,
s
->
linesize
);
vc1_h_overlap
(
s
->
dest
[
1
],
s
->
uvlinesize
);
vc1_h_overlap
(
s
->
dest
[
2
],
s
->
uvlinesize
);
vc1_h_overlap
(
s
->
dest
[
0
],
s
->
linesize
,
0
);
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
,
s
->
linesize
,
0
);
vc1_h_overlap
(
s
->
dest
[
1
],
s
->
uvlinesize
,
s
->
mb_x
&
1
);
vc1_h_overlap
(
s
->
dest
[
2
],
s
->
uvlinesize
,
s
->
mb_x
&
1
);
}
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
,
s
->
linesize
);
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
+
8
,
s
->
linesize
);
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
,
s
->
linesize
,
1
);
vc1_h_overlap
(
s
->
dest
[
0
]
+
8
*
s
->
linesize
+
8
,
s
->
linesize
,
1
);
}
if
(
get_bits_count
(
&
s
->
gb
)
>
v
->
bits
)
{
...
...
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