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Linshizhi
ffmpeg.wasm-core
Commits
f62a2b61
Commit
f62a2b61
authored
Sep 25, 2007
by
Aurelien Jacobs
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Plain Diff
cosmetic: indent
Originally committed as revision 10575 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
91fc2cf1
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Showing
1 changed file
with
96 additions
and
96 deletions
+96
-96
vp56.c
libavcodec/vp56.c
+96
-96
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libavcodec/vp56.c
View file @
f62a2b61
...
...
@@ -510,120 +510,120 @@ int vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
}
for
(
is_alpha
=
0
;
is_alpha
<
1
+
s
->
has_alpha
;
is_alpha
++
)
{
int
mb_row
,
mb_col
,
mb_row_flip
,
mb_offset
=
0
;
int
block
,
y
,
uv
,
stride_y
,
stride_uv
;
int
golden_frame
=
0
;
int
res
;
int
mb_row
,
mb_col
,
mb_row_flip
,
mb_offset
=
0
;
int
block
,
y
,
uv
,
stride_y
,
stride_uv
;
int
golden_frame
=
0
;
int
res
;
s
->
modelp
=
&
s
->
models
[
is_alpha
];
s
->
modelp
=
&
s
->
models
[
is_alpha
];
res
=
s
->
parse_header
(
s
,
buf
,
buf_size
,
&
golden_frame
);
if
(
!
res
)
return
-
1
;
res
=
s
->
parse_header
(
s
,
buf
,
buf_size
,
&
golden_frame
);
if
(
!
res
)
return
-
1
;
if
(
!
is_alpha
)
{
p
->
reference
=
1
;
if
(
avctx
->
get_buffer
(
avctx
,
p
)
<
0
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
return
-
1
;
}
if
(
!
is_alpha
)
{
p
->
reference
=
1
;
if
(
avctx
->
get_buffer
(
avctx
,
p
)
<
0
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
return
-
1
;
}
if
(
res
==
2
)
if
(
vp56_size_changed
(
avctx
))
{
avctx
->
release_buffer
(
avctx
,
p
);
return
-
1
;
if
(
res
==
2
)
if
(
vp56_size_changed
(
avctx
))
{
avctx
->
release_buffer
(
avctx
,
p
);
return
-
1
;
}
}
}
if
(
p
->
key_frame
)
{
p
->
pict_type
=
FF_I_TYPE
;
s
->
default_models_init
(
s
);
for
(
block
=
0
;
block
<
s
->
mb_height
*
s
->
mb_width
;
block
++
)
s
->
macroblocks
[
block
].
type
=
VP56_MB_INTRA
;
}
else
{
p
->
pict_type
=
FF_P_TYPE
;
vp56_parse_mb_type_models
(
s
);
s
->
parse_vector_models
(
s
);
s
->
mb_type
=
VP56_MB_INTER_NOVEC_PF
;
}
s
->
parse_coeff_models
(
s
);
if
(
p
->
key_frame
)
{
p
->
pict_type
=
FF_I_TYPE
;
s
->
default_models_init
(
s
);
for
(
block
=
0
;
block
<
s
->
mb_height
*
s
->
mb_width
;
block
++
)
s
->
macroblocks
[
block
].
type
=
VP56_MB_INTRA
;
}
else
{
p
->
pict_type
=
FF_P_TYPE
;
vp56_parse_mb_type_models
(
s
);
s
->
parse_vector_models
(
s
);
s
->
mb_type
=
VP56_MB_INTER_NOVEC_PF
;
}
memset
(
s
->
prev_dc
,
0
,
sizeof
(
s
->
prev_dc
));
s
->
prev_dc
[
1
][
VP56_FRAME_CURRENT
]
=
128
;
s
->
prev_dc
[
2
][
VP56_FRAME_CURRENT
]
=
128
;
s
->
parse_coeff_models
(
s
);
for
(
block
=
0
;
block
<
4
*
s
->
mb_width
+
6
;
block
++
)
{
s
->
above_blocks
[
block
].
ref_frame
=
-
1
;
s
->
above_blocks
[
block
].
dc_coeff
=
0
;
s
->
above_blocks
[
block
].
not_null_dc
=
0
;
}
s
->
above_blocks
[
2
*
s
->
mb_width
+
2
].
ref_frame
=
0
;
s
->
above_blocks
[
3
*
s
->
mb_width
+
4
].
ref_frame
=
0
;
memset
(
s
->
prev_dc
,
0
,
sizeof
(
s
->
prev_dc
));
s
->
prev_dc
[
1
][
VP56_FRAME_CURRENT
]
=
128
;
s
->
prev_dc
[
2
][
VP56_FRAME_CURRENT
]
=
128
;
stride_y
=
p
->
linesize
[
0
];
stride_uv
=
p
->
linesize
[
1
];
for
(
block
=
0
;
block
<
4
*
s
->
mb_width
+
6
;
block
++
)
{
s
->
above_blocks
[
block
].
ref_frame
=
-
1
;
s
->
above_blocks
[
block
].
dc_coeff
=
0
;
s
->
above_blocks
[
block
].
not_null_dc
=
0
;
}
s
->
above_blocks
[
2
*
s
->
mb_width
+
2
].
ref_frame
=
0
;
s
->
above_blocks
[
3
*
s
->
mb_width
+
4
].
ref_frame
=
0
;
if
(
s
->
flip
<
0
)
mb_offset
=
7
;
stride_y
=
p
->
linesize
[
0
];
stride_uv
=
p
->
linesize
[
1
]
;
/* main macroblocks loop */
for
(
mb_row
=
0
;
mb_row
<
s
->
mb_height
;
mb_row
++
)
{
if
(
s
->
flip
<
0
)
mb_row_flip
=
s
->
mb_height
-
mb_row
-
1
;
else
mb_row_flip
=
mb_row
;
for
(
block
=
0
;
block
<
4
;
block
++
)
{
s
->
left_block
[
block
].
ref_frame
=
-
1
;
s
->
left_block
[
block
].
dc_coeff
=
0
;
s
->
left_block
[
block
].
not_null_dc
=
0
;
memset
(
s
->
coeff_ctx
[
block
],
0
,
64
*
sizeof
(
s
->
coeff_ctx
[
block
][
0
]));
}
memset
(
s
->
coeff_ctx_last
,
24
,
sizeof
(
s
->
coeff_ctx_last
));
s
->
above_block_idx
[
0
]
=
1
;
s
->
above_block_idx
[
1
]
=
2
;
s
->
above_block_idx
[
2
]
=
1
;
s
->
above_block_idx
[
3
]
=
2
;
s
->
above_block_idx
[
4
]
=
2
*
s
->
mb_width
+
2
+
1
;
s
->
above_block_idx
[
5
]
=
3
*
s
->
mb_width
+
4
+
1
;
s
->
block_offset
[
s
->
frbi
]
=
(
mb_row_flip
*
16
+
mb_offset
)
*
stride_y
;
s
->
block_offset
[
s
->
srbi
]
=
s
->
block_offset
[
s
->
frbi
]
+
8
*
stride_y
;
s
->
block_offset
[
1
]
=
s
->
block_offset
[
0
]
+
8
;
s
->
block_offset
[
3
]
=
s
->
block_offset
[
2
]
+
8
;
s
->
block_offset
[
4
]
=
(
mb_row_flip
*
8
+
mb_offset
)
*
stride_uv
;
s
->
block_offset
[
5
]
=
s
->
block_offset
[
4
];
for
(
mb_col
=
0
;
mb_col
<
s
->
mb_width
;
mb_col
++
)
{
vp56_decode_mb
(
s
,
mb_row
,
mb_col
,
is_alpha
);
for
(
y
=
0
;
y
<
4
;
y
++
)
{
s
->
above_block_idx
[
y
]
+=
2
;
s
->
block_offset
[
y
]
+=
16
;
mb_offset
=
7
;
/* main macroblocks loop */
for
(
mb_row
=
0
;
mb_row
<
s
->
mb_height
;
mb_row
++
)
{
if
(
s
->
flip
<
0
)
mb_row_flip
=
s
->
mb_height
-
mb_row
-
1
;
else
mb_row_flip
=
mb_row
;
for
(
block
=
0
;
block
<
4
;
block
++
)
{
s
->
left_block
[
block
].
ref_frame
=
-
1
;
s
->
left_block
[
block
].
dc_coeff
=
0
;
s
->
left_block
[
block
].
not_null_dc
=
0
;
memset
(
s
->
coeff_ctx
[
block
],
0
,
64
*
sizeof
(
s
->
coeff_ctx
[
block
][
0
]));
}
memset
(
s
->
coeff_ctx_last
,
24
,
sizeof
(
s
->
coeff_ctx_last
));
s
->
above_block_idx
[
0
]
=
1
;
s
->
above_block_idx
[
1
]
=
2
;
s
->
above_block_idx
[
2
]
=
1
;
s
->
above_block_idx
[
3
]
=
2
;
s
->
above_block_idx
[
4
]
=
2
*
s
->
mb_width
+
2
+
1
;
s
->
above_block_idx
[
5
]
=
3
*
s
->
mb_width
+
4
+
1
;
s
->
block_offset
[
s
->
frbi
]
=
(
mb_row_flip
*
16
+
mb_offset
)
*
stride_y
;
s
->
block_offset
[
s
->
srbi
]
=
s
->
block_offset
[
s
->
frbi
]
+
8
*
stride_y
;
s
->
block_offset
[
1
]
=
s
->
block_offset
[
0
]
+
8
;
s
->
block_offset
[
3
]
=
s
->
block_offset
[
2
]
+
8
;
s
->
block_offset
[
4
]
=
(
mb_row_flip
*
8
+
mb_offset
)
*
stride_uv
;
s
->
block_offset
[
5
]
=
s
->
block_offset
[
4
];
for
(
mb_col
=
0
;
mb_col
<
s
->
mb_width
;
mb_col
++
)
{
vp56_decode_mb
(
s
,
mb_row
,
mb_col
,
is_alpha
);
for
(
y
=
0
;
y
<
4
;
y
++
)
{
s
->
above_block_idx
[
y
]
+=
2
;
s
->
block_offset
[
y
]
+=
16
;
}
for
(
uv
=
4
;
uv
<
6
;
uv
++
)
{
s
->
above_block_idx
[
uv
]
+=
1
;
s
->
block_offset
[
uv
]
+=
8
;
for
(
uv
=
4
;
uv
<
6
;
uv
++
)
{
s
->
above_block_idx
[
uv
]
+=
1
;
s
->
block_offset
[
uv
]
+=
8
;
}
}
}
}
if
(
p
->
key_frame
||
golden_frame
)
{
if
(
s
->
framep
[
VP56_FRAME_GOLDEN
]
->
data
[
0
]
&&
s
->
framep
[
VP56_FRAME_GOLDEN
]
!=
s
->
framep
[
VP56_FRAME_GOLDEN2
])
avctx
->
release_buffer
(
avctx
,
s
->
framep
[
VP56_FRAME_GOLDEN
]);
s
->
framep
[
VP56_FRAME_GOLDEN
]
=
p
;
}
if
(
p
->
key_frame
||
golden_frame
)
{
if
(
s
->
framep
[
VP56_FRAME_GOLDEN
]
->
data
[
0
]
&&
s
->
framep
[
VP56_FRAME_GOLDEN
]
!=
s
->
framep
[
VP56_FRAME_GOLDEN2
])
avctx
->
release_buffer
(
avctx
,
s
->
framep
[
VP56_FRAME_GOLDEN
]);
s
->
framep
[
VP56_FRAME_GOLDEN
]
=
p
;
}
if
(
s
->
has_alpha
)
{
FFSWAP
(
AVFrame
*
,
s
->
framep
[
VP56_FRAME_GOLDEN
],
s
->
framep
[
VP56_FRAME_GOLDEN2
]);
buf
+=
alpha_offset
;
buf_size
-=
alpha_offset
;
}
if
(
s
->
has_alpha
)
{
FFSWAP
(
AVFrame
*
,
s
->
framep
[
VP56_FRAME_GOLDEN
],
s
->
framep
[
VP56_FRAME_GOLDEN2
]);
buf
+=
alpha_offset
;
buf_size
-=
alpha_offset
;
}
}
if
(
s
->
framep
[
VP56_FRAME_PREVIOUS
]
==
s
->
framep
[
VP56_FRAME_GOLDEN
]
||
...
...
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