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submodule
ffmpeg
Commits
0a9132b8
Commit
0a9132b8
authored
Nov 16, 2012
by
Anton Khirnov
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Plain Diff
wnv1: cosmetics, reformat
parent
51648da4
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1 changed file
with
22 additions
and
20 deletions
+22
-20
wnv1.c
libavcodec/wnv1.c
+22
-20
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libavcodec/wnv1.c
View file @
0a9132b8
...
...
@@ -30,7 +30,7 @@
#include "mathops.h"
typedef
struct
WNV1Context
{
typedef
struct
WNV1Context
{
AVCodecContext
*
avctx
;
AVFrame
pic
;
...
...
@@ -38,10 +38,10 @@ typedef struct WNV1Context{
GetBitContext
gb
;
}
WNV1Context
;
static
const
uint16_t
code_tab
[
16
][
2
]
=
{
{
0x1FD
,
9
},
{
0xFD
,
8
},
{
0x7D
,
7
},
{
0x3D
,
6
},
{
0x1D
,
5
},
{
0x0D
,
4
},
{
0x005
,
3
},
{
0x000
,
1
},
{
0x004
,
3
},
{
0x0C
,
4
},
{
0x1C
,
5
},
{
0x3C
,
6
},
{
0x7C
,
7
},
{
0xFC
,
8
},
{
0x1FC
,
9
},
{
0xFF
,
8
}
static
const
uint16_t
code_tab
[
16
][
2
]
=
{
{
0x1FD
,
9
},
{
0xFD
,
8
},
{
0x7D
,
7
},
{
0x3D
,
6
},
{
0x1D
,
5
},
{
0x0D
,
4
},
{
0x005
,
3
},
{
0x000
,
1
},
{
0x004
,
3
},
{
0x0C
,
4
},
{
0x1C
,
5
},
{
0x3C
,
6
},
{
0x7C
,
7
},
{
0xFC
,
8
},
{
0x1FC
,
9
},
{
0xFF
,
8
}
};
#define CODE_VLC_BITS 9
...
...
@@ -52,32 +52,32 @@ static inline int wnv1_get_code(WNV1Context *w, int base_value)
{
int
v
=
get_vlc2
(
&
w
->
gb
,
code_vlc
.
table
,
CODE_VLC_BITS
,
1
);
if
(
v
==
15
)
return
ff_reverse
[
get_bits
(
&
w
->
gb
,
8
-
w
->
shift
)
];
if
(
v
==
15
)
return
ff_reverse
[
get_bits
(
&
w
->
gb
,
8
-
w
->
shift
)
];
else
return
base_value
+
((
v
-
7
)
<<
w
->
shift
);
return
base_value
+
((
v
-
7
)
<<
w
->
shift
);
}
static
int
decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
int
*
got_frame
,
AVPacket
*
avpkt
)
{
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
WNV1Context
*
const
l
=
avctx
->
priv_data
;
AVFrame
*
const
p
=
&
l
->
pic
;
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
AVFrame
*
const
p
=
&
l
->
pic
;
unsigned
char
*
Y
,
*
U
,
*
V
;
int
i
,
j
;
int
prev_y
=
0
,
prev_u
=
0
,
prev_v
=
0
;
uint8_t
*
rbuf
;
rbuf
=
av_malloc
(
buf_size
+
FF_INPUT_BUFFER_PADDING_SIZE
);
if
(
!
rbuf
)
{
if
(
!
rbuf
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"Cannot allocate temporary buffer
\n
"
);
return
-
1
;
}
if
(
p
->
data
[
0
])
if
(
p
->
data
[
0
])
avctx
->
release_buffer
(
avctx
,
p
);
p
->
reference
=
0
;
...
...
@@ -88,9 +88,9 @@ static int decode_frame(AVCodecContext *avctx,
}
p
->
key_frame
=
1
;
for
(
i
=
8
;
i
<
buf_size
;
i
++
)
rbuf
[
i
]
=
ff_reverse
[
buf
[
i
]
];
init_get_bits
(
&
l
->
gb
,
rbuf
+
8
,
(
buf_size
-
8
)
*
8
);
for
(
i
=
8
;
i
<
buf_size
;
i
++
)
rbuf
[
i
]
=
ff_reverse
[
buf
[
i
]
];
init_get_bits
(
&
l
->
gb
,
rbuf
+
8
,
(
buf_size
-
8
)
*
8
);
if
(
buf
[
2
]
>>
4
==
6
)
l
->
shift
=
2
;
...
...
@@ -131,14 +131,15 @@ static int decode_frame(AVCodecContext *avctx,
return
buf_size
;
}
static
av_cold
int
decode_init
(
AVCodecContext
*
avctx
){
static
av_cold
int
decode_init
(
AVCodecContext
*
avctx
)
{
WNV1Context
*
const
l
=
avctx
->
priv_data
;
static
VLC_TYPE
code_table
[
1
<<
CODE_VLC_BITS
][
2
];
l
->
avctx
=
avctx
;
l
->
avctx
=
avctx
;
avctx
->
pix_fmt
=
AV_PIX_FMT_YUV422P
;
code_vlc
.
table
=
code_table
;
code_vlc
.
table
=
code_table
;
code_vlc
.
table_allocated
=
1
<<
CODE_VLC_BITS
;
init_vlc
(
&
code_vlc
,
CODE_VLC_BITS
,
16
,
&
code_tab
[
0
][
1
],
4
,
2
,
...
...
@@ -147,7 +148,8 @@ static av_cold int decode_init(AVCodecContext *avctx){
return
0
;
}
static
av_cold
int
decode_end
(
AVCodecContext
*
avctx
){
static
av_cold
int
decode_end
(
AVCodecContext
*
avctx
)
{
WNV1Context
*
const
l
=
avctx
->
priv_data
;
AVFrame
*
pic
=
&
l
->
pic
;
...
...
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