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Linshizhi
ffmpeg.wasm-core
Commits
2f2893ce
Commit
2f2893ce
authored
Dec 23, 2008
by
Michael Niedermayer
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indent
Originally committed as revision 16296 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
d42fc4a8
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1 changed file
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21 additions
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21 deletions
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-21
h264.c
libavcodec/h264.c
+21
-21
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libavcodec/h264.c
View file @
2f2893ce
...
...
@@ -4153,29 +4153,29 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in
if
(
prefix
==
LEVEL_TAB_BITS
)
prefix
+=
get_level_prefix
(
gb
);
//first coefficient has suffix_length equal to 0 or 1
if
(
prefix
<
14
){
//FIXME try to build a large unified VLC table for all this
if
(
suffix_length
)
level_code
=
(
prefix
<<
suffix_length
)
+
get_bits
(
gb
,
suffix_length
);
//part
else
level_code
=
(
prefix
<<
suffix_length
);
//part
}
else
if
(
prefix
==
14
){
if
(
suffix_length
)
level_code
=
(
prefix
<<
suffix_length
)
+
get_bits
(
gb
,
suffix_length
);
//part
else
level_code
=
prefix
+
get_bits
(
gb
,
4
);
//part
}
else
{
level_code
=
(
15
<<
suffix_length
)
+
get_bits
(
gb
,
prefix
-
3
);
//part
if
(
suffix_length
==
0
)
level_code
+=
15
;
//FIXME doesn't make (much)sense
if
(
prefix
>=
16
)
level_code
+=
(
1
<<
(
prefix
-
3
))
-
4096
;
}
//first coefficient has suffix_length equal to 0 or 1
if
(
prefix
<
14
){
//FIXME try to build a large unified VLC table for all this
if
(
suffix_length
)
level_code
=
(
prefix
<<
suffix_length
)
+
get_bits
(
gb
,
suffix_length
);
//part
else
level_code
=
(
prefix
<<
suffix_length
);
//part
}
else
if
(
prefix
==
14
){
if
(
suffix_length
)
level_code
=
(
prefix
<<
suffix_length
)
+
get_bits
(
gb
,
suffix_length
);
//part
else
level_code
=
prefix
+
get_bits
(
gb
,
4
);
//part
}
else
{
level_code
=
(
15
<<
suffix_length
)
+
get_bits
(
gb
,
prefix
-
3
);
//part
if
(
suffix_length
==
0
)
level_code
+=
15
;
//FIXME doesn't make (much)sense
if
(
prefix
>=
16
)
level_code
+=
(
1
<<
(
prefix
-
3
))
-
4096
;
}
if
(
trailing_ones
<
3
)
level_code
+=
2
;
if
(
trailing_ones
<
3
)
level_code
+=
2
;
suffix_length
=
2
;
mask
=
-
(
level_code
&
1
);
level
[
trailing_ones
]
=
(((
2
+
level_code
)
>>
1
)
^
mask
)
-
mask
;
suffix_length
=
2
;
mask
=
-
(
level_code
&
1
);
level
[
trailing_ones
]
=
(((
2
+
level_code
)
>>
1
)
^
mask
)
-
mask
;
}
else
{
if
(
trailing_ones
<
3
)
level_code
+=
(
level_code
>>
31
)
|
1
;
...
...
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