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Linshizhi
ffmpeg.wasm-core
Commits
6b60a4c9
Commit
6b60a4c9
authored
Dec 08, 2011
by
Diego Biurrun
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cljr: K&R cosmetics
parent
1c45c64c
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1 changed file
with
23 additions
and
20 deletions
+23
-20
cljr.c
libavcodec/cljr.c
+23
-20
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libavcodec/cljr.c
View file @
6b60a4c9
...
...
@@ -28,9 +28,9 @@
#include "get_bits.h"
#include "put_bits.h"
typedef
struct
CLJRContext
{
typedef
struct
CLJRContext
{
AVCodecContext
*
avctx
;
AVFrame
picture
;
AVFrame
picture
;
}
CLJRContext
;
static
av_cold
int
common_init
(
AVCodecContext
*
avctx
)
...
...
@@ -49,47 +49,48 @@ static int decode_frame(AVCodecContext *avctx,
AVPacket
*
avpkt
)
{
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
int
buf_size
=
avpkt
->
size
;
CLJRContext
*
const
a
=
avctx
->
priv_data
;
GetBitContext
gb
;
AVFrame
*
picture
=
data
;
AVFrame
*
const
p
=
&
a
->
picture
;
int
x
,
y
;
if
(
p
->
data
[
0
])
if
(
p
->
data
[
0
])
avctx
->
release_buffer
(
avctx
,
p
);
if
(
buf_size
/
avctx
->
height
<
avctx
->
width
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"Resolution larger than buffer size. Invalid header?
\n
"
);
if
(
buf_size
/
avctx
->
height
<
avctx
->
width
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"Resolution larger than buffer size. Invalid header?
\n
"
);
return
AVERROR_INVALIDDATA
;
}
p
->
reference
=
0
;
if
(
avctx
->
get_buffer
(
avctx
,
p
)
<
0
)
{
p
->
reference
=
0
;
if
(
avctx
->
get_buffer
(
avctx
,
p
)
<
0
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
return
-
1
;
}
p
->
pict_type
=
AV_PICTURE_TYPE_I
;
p
->
key_frame
=
1
;
p
->
pict_type
=
AV_PICTURE_TYPE_I
;
p
->
key_frame
=
1
;
init_get_bits
(
&
gb
,
buf
,
buf_size
*
8
);
for
(
y
=
0
;
y
<
avctx
->
height
;
y
++
)
{
uint8_t
*
luma
=
&
a
->
picture
.
data
[
0
][
y
*
a
->
picture
.
linesize
[
0
]
];
uint8_t
*
cb
=
&
a
->
picture
.
data
[
1
][
y
*
a
->
picture
.
linesize
[
1
]
];
uint8_t
*
cr
=
&
a
->
picture
.
data
[
2
][
y
*
a
->
picture
.
linesize
[
2
]
];
for
(
x
=
0
;
x
<
avctx
->
width
;
x
+=
4
)
{
for
(
y
=
0
;
y
<
avctx
->
height
;
y
++
)
{
uint8_t
*
luma
=
&
a
->
picture
.
data
[
0
][
y
*
a
->
picture
.
linesize
[
0
]
];
uint8_t
*
cb
=
&
a
->
picture
.
data
[
1
][
y
*
a
->
picture
.
linesize
[
1
]
];
uint8_t
*
cr
=
&
a
->
picture
.
data
[
2
][
y
*
a
->
picture
.
linesize
[
2
]
];
for
(
x
=
0
;
x
<
avctx
->
width
;
x
+=
4
)
{
luma
[
3
]
=
get_bits
(
&
gb
,
5
)
<<
3
;
luma
[
2
]
=
get_bits
(
&
gb
,
5
)
<<
3
;
luma
[
1
]
=
get_bits
(
&
gb
,
5
)
<<
3
;
luma
[
0
]
=
get_bits
(
&
gb
,
5
)
<<
3
;
luma
+=
4
;
luma
+=
4
;
*
(
cb
++
)
=
get_bits
(
&
gb
,
6
)
<<
2
;
*
(
cr
++
)
=
get_bits
(
&
gb
,
6
)
<<
2
;
}
}
*
picture
=
a
->
picture
;
*
picture
=
a
->
picture
;
*
data_size
=
sizeof
(
AVPicture
);
return
buf_size
;
...
...
@@ -124,13 +125,15 @@ AVCodec ff_cljr_decoder = {
#endif
#if CONFIG_CLJR_ENCODER
static
int
encode_frame
(
AVCodecContext
*
avctx
,
unsigned
char
*
buf
,
int
buf_size
,
void
*
data
){
static
int
encode_frame
(
AVCodecContext
*
avctx
,
unsigned
char
*
buf
,
int
buf_size
,
void
*
data
)
{
PutBitContext
pb
;
AVFrame
*
p
=
data
;
int
x
,
y
;
p
->
pict_type
=
AV_PICTURE_TYPE_I
;
p
->
key_frame
=
1
;
p
->
pict_type
=
AV_PICTURE_TYPE_I
;
p
->
key_frame
=
1
;
init_put_bits
(
&
pb
,
buf
,
buf_size
/
8
);
...
...
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