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Linshizhi
ffmpeg.wasm-core
Commits
fcae3ff1
Commit
fcae3ff1
authored
Jul 19, 2013
by
Luca Barbato
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dsicinav: K&R formatting cosmetics
parent
6756d98c
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1 changed file
with
61 additions
and
50 deletions
+61
-50
dsicinav.c
libavcodec/dsicinav.c
+61
-50
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libavcodec/dsicinav.c
View file @
fcae3ff1
...
@@ -108,13 +108,15 @@ static av_cold int cinvideo_decode_init(AVCodecContext *avctx)
...
@@ -108,13 +108,15 @@ static av_cold int cinvideo_decode_init(AVCodecContext *avctx)
return
0
;
return
0
;
}
}
static
void
cin_apply_delta_data
(
const
unsigned
char
*
src
,
unsigned
char
*
dst
,
int
size
)
static
void
cin_apply_delta_data
(
const
unsigned
char
*
src
,
unsigned
char
*
dst
,
int
size
)
{
{
while
(
size
--
)
while
(
size
--
)
*
dst
++
+=
*
src
++
;
*
dst
++
+=
*
src
++
;
}
}
static
int
cin_decode_huffman
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
static
int
cin_decode_huffman
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
{
{
int
b
,
huff_code
=
0
;
int
b
,
huff_code
=
0
;
unsigned
char
huff_code_table
[
15
];
unsigned
char
huff_code_table
[
15
];
...
@@ -122,7 +124,8 @@ static int cin_decode_huffman(const unsigned char *src, int src_size, unsigned c
...
@@ -122,7 +124,8 @@ static int cin_decode_huffman(const unsigned char *src, int src_size, unsigned c
unsigned
char
*
dst_end
=
dst
+
dst_size
;
unsigned
char
*
dst_end
=
dst
+
dst_size
;
const
unsigned
char
*
src_end
=
src
+
src_size
;
const
unsigned
char
*
src_end
=
src
+
src_size
;
memcpy
(
huff_code_table
,
src
,
15
);
src
+=
15
;
memcpy
(
huff_code_table
,
src
,
15
);
src
+=
15
;
while
(
src
<
src_end
)
{
while
(
src
<
src_end
)
{
huff_code
=
*
src
++
;
huff_code
=
*
src
++
;
...
@@ -147,7 +150,8 @@ static int cin_decode_huffman(const unsigned char *src, int src_size, unsigned c
...
@@ -147,7 +150,8 @@ static int cin_decode_huffman(const unsigned char *src, int src_size, unsigned c
return
dst_cur
-
dst
;
return
dst_cur
-
dst
;
}
}
static
int
cin_decode_lzss
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
static
int
cin_decode_lzss
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
{
{
uint16_t
cmd
;
uint16_t
cmd
;
int
i
,
sz
,
offset
,
code
;
int
i
,
sz
,
offset
,
code
;
...
@@ -160,13 +164,15 @@ static int cin_decode_lzss(const unsigned char *src, int src_size, unsigned char
...
@@ -160,13 +164,15 @@ static int cin_decode_lzss(const unsigned char *src, int src_size, unsigned char
if
(
code
&
(
1
<<
i
))
{
if
(
code
&
(
1
<<
i
))
{
*
dst
++
=
*
src
++
;
*
dst
++
=
*
src
++
;
}
else
{
}
else
{
cmd
=
AV_RL16
(
src
);
src
+=
2
;
cmd
=
AV_RL16
(
src
);
src
+=
2
;
offset
=
cmd
>>
4
;
offset
=
cmd
>>
4
;
if
((
int
)
(
dst
-
dst_start
)
<
offset
+
1
)
if
((
int
)(
dst
-
dst_start
)
<
offset
+
1
)
return
AVERROR_INVALIDDATA
;
return
AVERROR_INVALIDDATA
;
sz
=
(
cmd
&
0xF
)
+
2
;
sz
=
(
cmd
&
0xF
)
+
2
;
/* don't use memcpy/memmove here as the decoding routine (ab)uses */
/* don't use memcpy/memmove here as the decoding routine
/* buffer overlappings to repeat bytes in the destination */
* (ab)uses buffer overlappings to repeat bytes in the
* destination */
sz
=
FFMIN
(
sz
,
dst_end
-
dst
);
sz
=
FFMIN
(
sz
,
dst_end
-
dst
);
while
(
sz
--
)
{
while
(
sz
--
)
{
*
dst
=
*
(
dst
-
offset
-
1
);
*
dst
=
*
(
dst
-
offset
-
1
);
...
@@ -179,7 +185,8 @@ static int cin_decode_lzss(const unsigned char *src, int src_size, unsigned char
...
@@ -179,7 +185,8 @@ static int cin_decode_lzss(const unsigned char *src, int src_size, unsigned char
return
0
;
return
0
;
}
}
static
void
cin_decode_rle
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
static
void
cin_decode_rle
(
const
unsigned
char
*
src
,
int
src_size
,
unsigned
char
*
dst
,
int
dst_size
)
{
{
int
len
,
code
;
int
len
,
code
;
unsigned
char
*
dst_end
=
dst
+
dst_size
;
unsigned
char
*
dst_end
=
dst
+
dst_size
;
...
@@ -206,10 +213,11 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
...
@@ -206,10 +213,11 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
const
uint8_t
*
buf
=
avpkt
->
data
;
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
int
buf_size
=
avpkt
->
size
;
CinVideoContext
*
cin
=
avctx
->
priv_data
;
CinVideoContext
*
cin
=
avctx
->
priv_data
;
int
i
,
y
,
palette_type
,
palette_colors_count
,
bitmap_frame_type
,
bitmap_frame_size
,
res
=
0
;
int
i
,
y
,
palette_type
,
palette_colors_count
,
bitmap_frame_type
,
bitmap_frame_size
,
res
=
0
;
palette_type
=
buf
[
0
];
palette_type
=
buf
[
0
];
palette_colors_count
=
AV_RL16
(
buf
+
1
);
palette_colors_count
=
AV_RL16
(
buf
+
1
);
bitmap_frame_type
=
buf
[
3
];
bitmap_frame_type
=
buf
[
3
];
buf
+=
4
;
buf
+=
4
;
...
@@ -227,13 +235,14 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
...
@@ -227,13 +235,14 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
}
}
}
else
{
}
else
{
for
(
i
=
0
;
i
<
palette_colors_count
;
++
i
)
{
for
(
i
=
0
;
i
<
palette_colors_count
;
++
i
)
{
cin
->
palette
[
buf
[
0
]]
=
AV_RL24
(
buf
+
1
);
cin
->
palette
[
buf
[
0
]]
=
AV_RL24
(
buf
+
1
);
buf
+=
4
;
buf
+=
4
;
bitmap_frame_size
-=
4
;
bitmap_frame_size
-=
4
;
}
}
}
}
/* note: the decoding routines below assumes that surface.width = surface.pitch */
/* note: the decoding routines below assumes that
* surface.width = surface.pitch */
switch
(
bitmap_frame_type
)
{
switch
(
bitmap_frame_type
)
{
case
9
:
case
9
:
cin_decode_rle
(
buf
,
bitmap_frame_size
,
cin_decode_rle
(
buf
,
bitmap_frame_size
,
...
@@ -253,7 +262,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
...
@@ -253,7 +262,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
break
;
break
;
case
36
:
case
36
:
bitmap_frame_size
=
cin_decode_huffman
(
buf
,
bitmap_frame_size
,
bitmap_frame_size
=
cin_decode_huffman
(
buf
,
bitmap_frame_size
,
cin
->
bitmap_table
[
CIN_INT_BMP
],
cin
->
bitmap_size
);
cin
->
bitmap_table
[
CIN_INT_BMP
],
cin
->
bitmap_size
);
cin_decode_rle
(
cin
->
bitmap_table
[
CIN_INT_BMP
],
bitmap_frame_size
,
cin_decode_rle
(
cin
->
bitmap_table
[
CIN_INT_BMP
],
bitmap_frame_size
,
cin
->
bitmap_table
[
CIN_CUR_BMP
],
cin
->
bitmap_size
);
cin
->
bitmap_table
[
CIN_CUR_BMP
],
cin
->
bitmap_size
);
cin_apply_delta_data
(
cin
->
bitmap_table
[
CIN_PRE_BMP
],
cin_apply_delta_data
(
cin
->
bitmap_table
[
CIN_PRE_BMP
],
...
@@ -282,7 +292,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
...
@@ -282,7 +292,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
}
}
if
((
res
=
ff_reget_buffer
(
avctx
,
&
cin
->
frame
))
<
0
)
{
if
((
res
=
ff_reget_buffer
(
avctx
,
&
cin
->
frame
))
<
0
)
{
av_log
(
cin
->
avctx
,
AV_LOG_ERROR
,
"delphinecinvideo: reget_buffer() failed to allocate a frame
\n
"
);
av_log
(
cin
->
avctx
,
AV_LOG_ERROR
,
"delphinecinvideo: reget_buffer() failed to allocate a frame
\n
"
);
return
res
;
return
res
;
}
}
...
@@ -293,7 +304,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
...
@@ -293,7 +304,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
cin
->
bitmap_table
[
CIN_CUR_BMP
]
+
y
*
cin
->
avctx
->
width
,
cin
->
bitmap_table
[
CIN_CUR_BMP
]
+
y
*
cin
->
avctx
->
width
,
cin
->
avctx
->
width
);
cin
->
avctx
->
width
);
FFSWAP
(
uint8_t
*
,
cin
->
bitmap_table
[
CIN_CUR_BMP
],
cin
->
bitmap_table
[
CIN_PRE_BMP
]);
FFSWAP
(
uint8_t
*
,
cin
->
bitmap_table
[
CIN_CUR_BMP
],
cin
->
bitmap_table
[
CIN_PRE_BMP
]);
if
((
res
=
av_frame_ref
(
data
,
&
cin
->
frame
))
<
0
)
if
((
res
=
av_frame_ref
(
data
,
&
cin
->
frame
))
<
0
)
return
res
;
return
res
;
...
@@ -366,7 +378,6 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
...
@@ -366,7 +378,6 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
return
avpkt
->
size
;
return
avpkt
->
size
;
}
}
AVCodec
ff_dsicinvideo_decoder
=
{
AVCodec
ff_dsicinvideo_decoder
=
{
.
name
=
"dsicinvideo"
,
.
name
=
"dsicinvideo"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
...
...
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