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submodule
ffmpeg
Commits
8dc90371
Commit
8dc90371
authored
Oct 24, 2011
by
Stefano Sabatini
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Plain Diff
lavfi: add internal function ff_fill_rgba_map()
parent
b76bc010
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2 changed files
with
18 additions
and
11 deletions
+18
-11
drawutils.c
libavfilter/drawutils.c
+16
-11
drawutils.h
libavfilter/drawutils.h
+2
-0
No files found.
libavfilter/drawutils.c
View file @
8dc90371
...
...
@@ -23,16 +23,8 @@
enum
{
RED
=
0
,
GREEN
,
BLUE
,
ALPHA
};
int
ff_fill_line_with_color
(
uint8_t
*
line
[
4
],
int
pixel_step
[
4
],
int
w
,
uint8_t
dst_color
[
4
],
enum
PixelFormat
pix_fmt
,
uint8_t
rgba_color
[
4
],
int
*
is_packed_rgba
,
uint8_t
rgba_map_ptr
[
4
])
int
ff_fill_rgba_map
(
uint8_t
*
rgba_map
,
enum
PixelFormat
pix_fmt
)
{
uint8_t
rgba_map
[
4
]
=
{
0
};
int
i
;
const
AVPixFmtDescriptor
*
pix_desc
=
&
av_pix_fmt_descriptors
[
pix_fmt
];
int
hsub
=
pix_desc
->
log2_chroma_w
;
*
is_packed_rgba
=
1
;
switch
(
pix_fmt
)
{
case
PIX_FMT_ARGB
:
rgba_map
[
ALPHA
]
=
0
;
rgba_map
[
RED
]
=
1
;
rgba_map
[
GREEN
]
=
2
;
rgba_map
[
BLUE
]
=
3
;
break
;
case
PIX_FMT_ABGR
:
rgba_map
[
ALPHA
]
=
0
;
rgba_map
[
BLUE
]
=
1
;
rgba_map
[
GREEN
]
=
2
;
rgba_map
[
RED
]
=
3
;
break
;
...
...
@@ -40,9 +32,22 @@ int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, uint8_t
case
PIX_FMT_RGB24
:
rgba_map
[
RED
]
=
0
;
rgba_map
[
GREEN
]
=
1
;
rgba_map
[
BLUE
]
=
2
;
rgba_map
[
ALPHA
]
=
3
;
break
;
case
PIX_FMT_BGRA
:
case
PIX_FMT_BGR24
:
rgba_map
[
BLUE
]
=
0
;
rgba_map
[
GREEN
]
=
1
;
rgba_map
[
RED
]
=
2
;
rgba_map
[
ALPHA
]
=
3
;
break
;
default:
*
is_packed_rgba
=
0
;
default:
/* unsupported */
return
AVERROR
(
EINVAL
)
;
}
return
0
;
}
int
ff_fill_line_with_color
(
uint8_t
*
line
[
4
],
int
pixel_step
[
4
],
int
w
,
uint8_t
dst_color
[
4
],
enum
PixelFormat
pix_fmt
,
uint8_t
rgba_color
[
4
],
int
*
is_packed_rgba
,
uint8_t
rgba_map_ptr
[
4
])
{
uint8_t
rgba_map
[
4
]
=
{
0
};
int
i
;
const
AVPixFmtDescriptor
*
pix_desc
=
&
av_pix_fmt_descriptors
[
pix_fmt
];
int
hsub
=
pix_desc
->
log2_chroma_w
;
*
is_packed_rgba
=
ff_fill_rgba_map
(
rgba_map
,
pix_fmt
)
>=
0
;
if
(
*
is_packed_rgba
)
{
pixel_step
[
0
]
=
(
av_get_bits_per_pixel
(
pix_desc
))
>>
3
;
...
...
libavfilter/drawutils.h
View file @
8dc90371
...
...
@@ -27,6 +27,8 @@
#include <stdint.h>
#include "libavutil/pixfmt.h"
int
ff_fill_rgba_map
(
uint8_t
*
rgba_map
,
enum
PixelFormat
pix_fmt
);
int
ff_fill_line_with_color
(
uint8_t
*
line
[
4
],
int
pixel_step
[
4
],
int
w
,
uint8_t
dst_color
[
4
],
enum
PixelFormat
pix_fmt
,
uint8_t
rgba_color
[
4
],
...
...
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