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Linshizhi
ffmpeg.wasm-core
Commits
4a8a35bc
Commit
4a8a35bc
authored
Nov 09, 2013
by
Anton Khirnov
Browse files
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Plain Diff
cinepak: use the AVFrame API properly.
parent
cec5ce49
Hide whitespace changes
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Showing
1 changed file
with
65 additions
and
63 deletions
+65
-63
cinepak.c
libavcodec/cinepak.c
+65
-63
No files found.
libavcodec/cinepak.c
View file @
4a8a35bc
...
...
@@ -58,7 +58,7 @@ typedef struct {
typedef
struct
CinepakContext
{
AVCodecContext
*
avctx
;
AVFrame
frame
;
AVFrame
*
frame
;
const
unsigned
char
*
data
;
int
size
;
...
...
@@ -138,14 +138,14 @@ static int cinepak_decode_vectors (CinepakContext *s, cvid_strip *strip,
for
(
y
=
strip
->
y1
;
y
<
strip
->
y2
;
y
+=
4
)
{
iy
[
0
]
=
strip
->
x1
+
(
y
*
s
->
frame
.
linesize
[
0
]);
iy
[
1
]
=
iy
[
0
]
+
s
->
frame
.
linesize
[
0
];
iy
[
2
]
=
iy
[
1
]
+
s
->
frame
.
linesize
[
0
];
iy
[
3
]
=
iy
[
2
]
+
s
->
frame
.
linesize
[
0
];
iu
[
0
]
=
(
strip
->
x1
/
2
)
+
((
y
/
2
)
*
s
->
frame
.
linesize
[
1
]);
iu
[
1
]
=
iu
[
0
]
+
s
->
frame
.
linesize
[
1
];
iv
[
0
]
=
(
strip
->
x1
/
2
)
+
((
y
/
2
)
*
s
->
frame
.
linesize
[
2
]);
iv
[
1
]
=
iv
[
0
]
+
s
->
frame
.
linesize
[
2
];
iy
[
0
]
=
strip
->
x1
+
(
y
*
s
->
frame
->
linesize
[
0
]);
iy
[
1
]
=
iy
[
0
]
+
s
->
frame
->
linesize
[
0
];
iy
[
2
]
=
iy
[
1
]
+
s
->
frame
->
linesize
[
0
];
iy
[
3
]
=
iy
[
2
]
+
s
->
frame
->
linesize
[
0
];
iu
[
0
]
=
(
strip
->
x1
/
2
)
+
((
y
/
2
)
*
s
->
frame
->
linesize
[
1
]);
iu
[
1
]
=
iu
[
0
]
+
s
->
frame
->
linesize
[
1
];
iv
[
0
]
=
(
strip
->
x1
/
2
)
+
((
y
/
2
)
*
s
->
frame
->
linesize
[
2
]);
iv
[
1
]
=
iv
[
0
]
+
s
->
frame
->
linesize
[
2
];
for
(
x
=
strip
->
x1
;
x
<
strip
->
x2
;
x
+=
4
)
{
if
((
chunk_id
&
0x01
)
&&
!
(
mask
>>=
1
))
{
...
...
@@ -172,40 +172,40 @@ static int cinepak_decode_vectors (CinepakContext *s, cvid_strip *strip,
return
AVERROR_INVALIDDATA
;
codebook
=
&
strip
->
v1_codebook
[
*
data
++
];
s
->
frame
.
data
[
0
][
iy
[
0
]
+
0
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
0
]
+
1
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
0
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
1
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
0
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
1
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
0
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
1
]
=
codebook
->
y0
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
0
]]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
0
]]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
0
]]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
0
]]
=
codebook
->
v
;
}
s
->
frame
.
data
[
0
][
iy
[
0
]
+
2
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
0
]
+
3
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
2
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
3
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
2
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
3
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
2
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
3
]
=
codebook
->
y1
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
0
]
+
1
]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
0
]
+
1
]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
0
]
+
1
]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
0
]
+
1
]
=
codebook
->
v
;
}
s
->
frame
.
data
[
0
][
iy
[
2
]
+
0
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
2
]
+
1
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
0
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
1
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
0
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
1
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
0
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
1
]
=
codebook
->
y2
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
1
]]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
1
]]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
1
]]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
1
]]
=
codebook
->
v
;
}
s
->
frame
.
data
[
0
][
iy
[
2
]
+
2
]
=
codebook
->
y3
;
s
->
frame
.
data
[
0
][
iy
[
2
]
+
3
]
=
codebook
->
y3
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
2
]
=
codebook
->
y3
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
3
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
2
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
3
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
2
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
3
]
=
codebook
->
y3
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
1
]
+
1
]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
1
]
+
1
]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
1
]
+
1
]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
1
]
+
1
]
=
codebook
->
v
;
}
}
else
if
(
flag
&
mask
)
{
...
...
@@ -213,43 +213,43 @@ static int cinepak_decode_vectors (CinepakContext *s, cvid_strip *strip,
return
AVERROR_INVALIDDATA
;
codebook
=
&
strip
->
v4_codebook
[
*
data
++
];
s
->
frame
.
data
[
0
][
iy
[
0
]
+
0
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
0
]
+
1
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
0
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
1
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
0
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
1
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
0
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
1
]
=
codebook
->
y3
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
0
]]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
0
]]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
0
]]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
0
]]
=
codebook
->
v
;
}
codebook
=
&
strip
->
v4_codebook
[
*
data
++
];
s
->
frame
.
data
[
0
][
iy
[
0
]
+
2
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
0
]
+
3
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
2
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
1
]
+
3
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
2
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
0
]
+
3
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
2
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
1
]
+
3
]
=
codebook
->
y3
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
0
]
+
1
]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
0
]
+
1
]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
0
]
+
1
]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
0
]
+
1
]
=
codebook
->
v
;
}
codebook
=
&
strip
->
v4_codebook
[
*
data
++
];
s
->
frame
.
data
[
0
][
iy
[
2
]
+
0
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
2
]
+
1
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
0
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
1
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
0
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
1
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
0
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
1
]
=
codebook
->
y3
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
1
]]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
1
]]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
1
]]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
1
]]
=
codebook
->
v
;
}
codebook
=
&
strip
->
v4_codebook
[
*
data
++
];
s
->
frame
.
data
[
0
][
iy
[
2
]
+
2
]
=
codebook
->
y0
;
s
->
frame
.
data
[
0
][
iy
[
2
]
+
3
]
=
codebook
->
y1
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
2
]
=
codebook
->
y2
;
s
->
frame
.
data
[
0
][
iy
[
3
]
+
3
]
=
codebook
->
y3
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
2
]
=
codebook
->
y0
;
s
->
frame
->
data
[
0
][
iy
[
2
]
+
3
]
=
codebook
->
y1
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
2
]
=
codebook
->
y2
;
s
->
frame
->
data
[
0
][
iy
[
3
]
+
3
]
=
codebook
->
y3
;
if
(
!
s
->
palette_video
)
{
s
->
frame
.
data
[
1
][
iu
[
1
]
+
1
]
=
codebook
->
u
;
s
->
frame
.
data
[
2
][
iv
[
1
]
+
1
]
=
codebook
->
v
;
s
->
frame
->
data
[
1
][
iu
[
1
]
+
1
]
=
codebook
->
u
;
s
->
frame
->
data
[
2
][
iv
[
1
]
+
1
]
=
codebook
->
v
;
}
}
...
...
@@ -414,7 +414,9 @@ static av_cold int cinepak_decode_init(AVCodecContext *avctx)
avctx
->
pix_fmt
=
AV_PIX_FMT_PAL8
;
}
avcodec_get_frame_defaults
(
&
s
->
frame
);
s
->
frame
=
av_frame_alloc
();
if
(
!
s
->
frame
)
return
AVERROR
(
ENOMEM
);
return
0
;
}
...
...
@@ -430,7 +432,7 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
s
->
data
=
buf
;
s
->
size
=
buf_size
;
if
((
ret
=
ff_reget_buffer
(
avctx
,
&
s
->
frame
)))
{
if
((
ret
=
ff_reget_buffer
(
avctx
,
s
->
frame
)))
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"reget_buffer() failed
\n
"
);
return
ret
;
}
...
...
@@ -438,7 +440,7 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
if
(
s
->
palette_video
)
{
const
uint8_t
*
pal
=
av_packet_get_side_data
(
avpkt
,
AV_PKT_DATA_PALETTE
,
NULL
);
if
(
pal
)
{
s
->
frame
.
palette_has_changed
=
1
;
s
->
frame
->
palette_has_changed
=
1
;
memcpy
(
s
->
pal
,
pal
,
AVPALETTE_SIZE
);
}
}
...
...
@@ -446,9 +448,9 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
cinepak_decode
(
s
);
if
(
s
->
palette_video
)
memcpy
(
s
->
frame
.
data
[
1
],
s
->
pal
,
AVPALETTE_SIZE
);
memcpy
(
s
->
frame
->
data
[
1
],
s
->
pal
,
AVPALETTE_SIZE
);
if
((
ret
=
av_frame_ref
(
data
,
&
s
->
frame
))
<
0
)
if
((
ret
=
av_frame_ref
(
data
,
s
->
frame
))
<
0
)
return
ret
;
*
got_frame
=
1
;
...
...
@@ -461,7 +463,7 @@ static av_cold int cinepak_decode_end(AVCodecContext *avctx)
{
CinepakContext
*
s
=
avctx
->
priv_data
;
av_frame_
unref
(
&
s
->
frame
);
av_frame_
free
(
&
s
->
frame
);
return
0
;
}
...
...
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