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Stefan Westerfeld
ffmpeg
Commits
431117dc
Commit
431117dc
authored
May 03, 2016
by
Ronald S. Bultje
Browse files
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Plain Diff
vf_colorspace: add floyd-steinberg dithering option to full conversion.
parent
9486de5a
Changes
5
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Showing
5 changed files
with
221 additions
and
3 deletions
+221
-3
filters.texi
doc/filters.texi
+13
-0
colorspacedsp.c
libavfilter/colorspacedsp.c
+13
-0
colorspacedsp.h
libavfilter/colorspacedsp.h
+6
-0
colorspacedsp_template.c
libavfilter/colorspacedsp_template.c
+128
-0
vf_colorspace.c
libavfilter/vf_colorspace.c
+61
-3
No files found.
doc/filters.texi
View file @
431117dc
...
...
@@ -5145,6 +5145,19 @@ YUV 4:4:4 planar 12-bits
Do a fast conversion, which skips gamma/primary correction. This will take
significantly less CPU, but will be mathematically incorrect. To get output
compatible with that produced by the colormatrix filter, use fast=1.
@item dither
Specify dithering mode.
The accepted values are:
@table @samp
@item none
No dithering
@item fsb
Floyd-Steinberg dithering
@end table
@end table
The filter converts the transfer characteristics, color space and color
...
...
libavfilter/colorspacedsp.c
View file @
431117dc
...
...
@@ -20,6 +20,10 @@
#include "colorspacedsp.h"
/*
* SS_W/H stands for "subsampling_w/h"
* it's analogous to AVPixFmtDescriptor->log2_chroma_w/h.
*/
#define SS_W 0
#define SS_H 0
...
...
@@ -114,6 +118,15 @@ void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp)
init_rgb2yuv_fn
(
1
,
10
);
init_rgb2yuv_fn
(
2
,
12
);
#define init_rgb2yuv_fsb_fn(idx, bit) \
dsp->rgb2yuv_fsb[idx][0] = rgb2yuv_fsb_444p##bit##_c; \
dsp->rgb2yuv_fsb[idx][1] = rgb2yuv_fsb_422p##bit##_c; \
dsp->rgb2yuv_fsb[idx][2] = rgb2yuv_fsb_420p##bit##_c
init_rgb2yuv_fsb_fn
(
0
,
8
);
init_rgb2yuv_fsb_fn
(
1
,
10
);
init_rgb2yuv_fsb_fn
(
2
,
12
);
#define init_yuv2yuv_fn(idx1, idx2, bit1, bit2) \
dsp->yuv2yuv[idx1][idx2][0] = yuv2yuv_444p##bit1##to##bit2##_c; \
dsp->yuv2yuv[idx1][idx2][1] = yuv2yuv_422p##bit1##to##bit2##_c; \
...
...
libavfilter/colorspacedsp.h
View file @
431117dc
...
...
@@ -32,6 +32,11 @@ typedef void (*rgb2yuv_fn)(uint8_t *yuv[3], ptrdiff_t yuv_stride[3],
int16_t
*
rgb
[
3
],
ptrdiff_t
rgb_stride
,
int
w
,
int
h
,
const
int16_t
rgb2yuv_coeffs
[
3
][
3
][
8
],
const
int16_t
yuv_offset
[
8
]);
typedef
void
(
*
rgb2yuv_fsb_fn
)(
uint8_t
*
yuv
[
3
],
ptrdiff_t
yuv_stride
[
3
],
int16_t
*
rgb
[
3
],
ptrdiff_t
rgb_stride
,
int
w
,
int
h
,
const
int16_t
rgb2yuv_coeffs
[
3
][
3
][
8
],
const
int16_t
yuv_offset
[
8
],
int
*
rnd
[
3
][
2
]);
typedef
void
(
*
yuv2yuv_fn
)(
uint8_t
*
yuv_out
[
3
],
ptrdiff_t
yuv_out_stride
[
3
],
uint8_t
*
yuv_in
[
3
],
ptrdiff_t
yuv_in_stride
[
3
],
int
w
,
int
h
,
const
int16_t
yuv2yuv_coeffs
[
3
][
3
][
8
],
...
...
@@ -40,6 +45,7 @@ typedef void (*yuv2yuv_fn)(uint8_t *yuv_out[3], ptrdiff_t yuv_out_stride[3],
typedef
struct
ColorSpaceDSPContext
{
yuv2rgb_fn
yuv2rgb
[
3
/* 0: 8bit, 1: 10bit, 2: 12bit */
][
3
/* 0: 444, 1: 422, 2: 420 */
];
rgb2yuv_fn
rgb2yuv
[
3
/* 0: 8bit, 1: 10bit, 2: 12bit */
][
3
/* 0: 444, 1: 422, 2: 420 */
];
rgb2yuv_fsb_fn
rgb2yuv_fsb
[
3
/* 0: 8bit, 1: 10bit, 2: 12bit */
][
3
/* 0: 444, 1: 422, 2: 420 */
];
yuv2yuv_fn
yuv2yuv
[
3
/* in_depth */
][
3
/* out_depth */
][
3
/* 0: 444, 1: 422, 2: 420 */
];
void
(
*
multiply3x3
)(
int16_t
*
data
[
3
],
ptrdiff_t
stride
,
...
...
libavfilter/colorspacedsp_template.c
View file @
431117dc
...
...
@@ -199,6 +199,134 @@ static void fn(rgb2yuv)(uint8_t *_yuv[3], ptrdiff_t yuv_stride[3],
}
}
/* floyd-steinberg dithering - for any mid-top pixel A in a 3x2 block of pixels:
* 1 A 2
* 3 4 5
* the rounding error is distributed over the neighbouring pixels:
* 2: 7/16th, 3: 3/16th, 4: 5/16th and 5: 1/16th
*/
static
void
fn
(
rgb2yuv_fsb
)(
uint8_t
*
_yuv
[
3
],
ptrdiff_t
yuv_stride
[
3
],
int16_t
*
rgb
[
3
],
ptrdiff_t
s
,
int
w
,
int
h
,
const
int16_t
rgb2yuv_coeffs
[
3
][
3
][
8
],
const
int16_t
yuv_offset
[
8
],
int
*
rnd_scratch
[
3
][
2
])
{
pixel
**
yuv
=
(
pixel
**
)
_yuv
;
pixel
*
yuv0
=
yuv
[
0
],
*
yuv1
=
yuv
[
1
],
*
yuv2
=
yuv
[
2
];
const
int16_t
*
rgb0
=
rgb
[
0
],
*
rgb1
=
rgb
[
1
],
*
rgb2
=
rgb
[
2
];
int
y
,
x
;
const
int
sh
=
29
-
BIT_DEPTH
;
const
int
rnd
=
1
<<
(
sh
-
1
);
int
cry
=
rgb2yuv_coeffs
[
0
][
0
][
0
];
int
cgy
=
rgb2yuv_coeffs
[
0
][
1
][
0
];
int
cby
=
rgb2yuv_coeffs
[
0
][
2
][
0
];
int
cru
=
rgb2yuv_coeffs
[
1
][
0
][
0
];
int
cgu
=
rgb2yuv_coeffs
[
1
][
1
][
0
];
int
cburv
=
rgb2yuv_coeffs
[
1
][
2
][
0
];
int
cgv
=
rgb2yuv_coeffs
[
2
][
1
][
0
];
int
cbv
=
rgb2yuv_coeffs
[
2
][
2
][
0
];
ptrdiff_t
s0
=
yuv_stride
[
0
]
/
sizeof
(
pixel
);
const
int
uv_offset
=
128
<<
(
BIT_DEPTH
-
8
);
unsigned
mask
=
(
1
<<
sh
)
-
1
;
for
(
x
=
0
;
x
<
w
;
x
++
)
{
rnd_scratch
[
0
][
0
][
x
]
=
rnd_scratch
[
0
][
1
][
x
]
=
rnd
;
}
av_assert2
(
rgb2yuv_coeffs
[
1
][
2
][
0
]
==
rgb2yuv_coeffs
[
2
][
0
][
0
]);
w
=
AV_CEIL_RSHIFT
(
w
,
SS_W
);
h
=
AV_CEIL_RSHIFT
(
h
,
SS_H
);
for
(
x
=
0
;
x
<
w
;
x
++
)
{
rnd_scratch
[
1
][
0
][
x
]
=
rnd_scratch
[
1
][
1
][
x
]
=
rnd_scratch
[
2
][
0
][
x
]
=
rnd_scratch
[
2
][
1
][
x
]
=
rnd
;
}
for
(
y
=
0
;
y
<
h
;
y
++
)
{
for
(
x
=
0
;
x
<
w
;
x
++
)
{
int
r00
=
rgb0
[
x
<<
SS_W
],
g00
=
rgb1
[
x
<<
SS_W
],
b00
=
rgb2
[
x
<<
SS_W
];
int
y00
;
#if SS_W == 1
int
r01
=
rgb0
[
x
*
2
+
1
],
g01
=
rgb1
[
x
*
2
+
1
],
b01
=
rgb2
[
x
*
2
+
1
];
int
y01
;
#if SS_H == 1
int
r10
=
rgb0
[
x
*
2
+
0
+
s
],
g10
=
rgb1
[
x
*
2
+
0
+
s
],
b10
=
rgb2
[
x
*
2
+
0
+
s
];
int
r11
=
rgb0
[
x
*
2
+
1
+
s
],
g11
=
rgb1
[
x
*
2
+
1
+
s
],
b11
=
rgb2
[
x
*
2
+
1
+
s
];
int
y10
,
y11
;
#endif
#endif
int
u
,
v
,
diff
;
y00
=
r00
*
cry
+
g00
*
cgy
+
b00
*
cby
+
rnd_scratch
[
0
][
y
&
!
SS_H
][
x
<<
SS_W
];
diff
=
(
y00
&
mask
)
-
rnd
;
yuv0
[
x
<<
SS_W
]
=
av_clip_pixel
(
yuv_offset
[
0
]
+
(
y00
>>
sh
));
rnd_scratch
[
0
][
(
y
&
!
SS_H
)][(
x
<<
SS_W
)
+
1
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][(
x
<<
SS_W
)
-
1
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][(
x
<<
SS_W
)
+
0
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][(
x
<<
SS_W
)
+
1
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
0
][
(
y
&
!
SS_H
)][(
x
<<
SS_W
)
+
0
]
=
rnd
;
#if SS_W == 1
y01
=
r01
*
cry
+
g01
*
cgy
+
b01
*
cby
+
rnd_scratch
[
0
][
y
&
!
SS_H
][
x
*
2
+
1
];
diff
=
(
y01
&
mask
)
-
rnd
;
yuv0
[
x
*
2
+
1
]
=
av_clip_pixel
(
yuv_offset
[
0
]
+
(
y01
>>
sh
));
rnd_scratch
[
0
][
(
y
&
!
SS_H
)][
x
*
2
+
2
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][
x
*
2
+
0
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][
x
*
2
+
1
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
0
][
!
(
y
&
!
SS_H
)][
x
*
2
+
2
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
0
][
(
y
&
!
SS_H
)][
x
*
2
+
1
]
=
rnd
;
#if SS_H == 1
y10
=
r10
*
cry
+
g10
*
cgy
+
b10
*
cby
+
rnd_scratch
[
0
][
1
][
x
*
2
+
0
];
diff
=
(
y10
&
mask
)
-
rnd
;
yuv0
[
x
*
2
+
0
+
s0
]
=
av_clip_pixel
(
yuv_offset
[
0
]
+
(
y10
>>
sh
));
rnd_scratch
[
0
][
1
][
x
*
2
+
1
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
-
1
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
+
0
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
+
1
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
0
][
1
][
x
*
2
+
0
]
=
rnd
;
y11
=
r11
*
cry
+
g11
*
cgy
+
b11
*
cby
+
rnd_scratch
[
0
][
1
][
x
*
2
+
1
];
diff
=
(
y11
&
mask
)
-
rnd
;
yuv0
[
x
*
2
+
1
+
s0
]
=
av_clip_pixel
(
yuv_offset
[
0
]
+
(
y11
>>
sh
));
rnd_scratch
[
0
][
1
][
x
*
2
+
2
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
+
0
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
+
1
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
0
][
0
][
x
*
2
+
2
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
0
][
1
][
x
*
2
+
1
]
=
rnd
;
#endif
#endif
u
=
avg
(
r00
,
r01
,
r10
,
r11
)
*
cru
+
avg
(
g00
,
g01
,
g10
,
g11
)
*
cgu
+
avg
(
b00
,
b01
,
b10
,
b11
)
*
cburv
+
rnd_scratch
[
1
][
y
&
1
][
x
];
diff
=
(
u
&
mask
)
-
rnd
;
yuv1
[
x
]
=
av_clip_pixel
(
uv_offset
+
(
u
>>
sh
));
rnd_scratch
[
1
][
(
y
&
1
)][
x
+
1
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
1
][
!
(
y
&
1
)][
x
-
1
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
1
][
!
(
y
&
1
)][
x
+
0
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
1
][
!
(
y
&
1
)][
x
+
1
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
1
][
(
y
&
1
)][
x
+
0
]
=
rnd
;
v
=
avg
(
r00
,
r01
,
r10
,
r11
)
*
cburv
+
avg
(
g00
,
g01
,
g10
,
g11
)
*
cgv
+
avg
(
b00
,
b01
,
b10
,
b11
)
*
cbv
+
rnd_scratch
[
2
][
y
&
1
][
x
];
diff
=
(
v
&
mask
)
-
rnd
;
yuv2
[
x
]
=
av_clip_pixel
(
uv_offset
+
(
v
>>
sh
));
rnd_scratch
[
2
][
(
y
&
1
)][
x
+
1
]
+=
(
diff
*
7
+
8
)
>>
4
;
rnd_scratch
[
2
][
!
(
y
&
1
)][
x
-
1
]
+=
(
diff
*
3
+
8
)
>>
4
;
rnd_scratch
[
2
][
!
(
y
&
1
)][
x
+
0
]
+=
(
diff
*
5
+
8
)
>>
4
;
rnd_scratch
[
2
][
!
(
y
&
1
)][
x
+
1
]
+=
(
diff
*
1
+
8
)
>>
4
;
rnd_scratch
[
2
][
(
y
&
1
)][
x
+
0
]
=
rnd
;
}
yuv0
+=
s0
*
(
1
<<
SS_H
);
yuv1
+=
yuv_stride
[
1
]
/
sizeof
(
pixel
);
yuv2
+=
yuv_stride
[
2
]
/
sizeof
(
pixel
);
rgb0
+=
s
*
(
1
<<
SS_H
);
rgb1
+=
s
*
(
1
<<
SS_H
);
rgb2
+=
s
*
(
1
<<
SS_H
);
}
}
#undef IN_BIT_DEPTH
#undef OUT_BIT_DEPTH
#define OUT_BIT_DEPTH BIT_DEPTH
...
...
libavfilter/vf_colorspace.c
View file @
431117dc
...
...
@@ -34,6 +34,12 @@
#include "internal.h"
#include "video.h"
enum
DitherMode
{
DITHER_NONE
,
DITHER_FSB
,
DITHER_NB
,
};
enum
Colorspace
{
CS_UNSPECIFIED
,
CS_BT470M
,
...
...
@@ -121,10 +127,12 @@ typedef struct ColorSpaceContext {
enum
AVColorPrimaries
in_prm
,
out_prm
,
user_prm
;
enum
AVPixelFormat
in_format
,
user_format
;
int
fast_mode
;
enum
DitherMode
dither
;
int16_t
*
rgb
[
3
];
ptrdiff_t
rgb_stride
;
unsigned
rgb_sz
;
int
*
dither_scratch
[
3
][
2
],
*
dither_scratch_base
[
3
][
2
];
const
struct
ColorPrimaries
*
in_primaries
,
*
out_primaries
;
int
lrgb2lrgb_passthrough
;
...
...
@@ -142,6 +150,7 @@ typedef struct ColorSpaceContext {
DECLARE_ALIGNED
(
16
,
int16_t
,
yuv_offset
)[
2
/* in, out */
][
8
];
yuv2rgb_fn
yuv2rgb
;
rgb2yuv_fn
rgb2yuv
;
rgb2yuv_fsb_fn
rgb2yuv_fsb
;
yuv2yuv_fn
yuv2yuv
;
double
yuv2rgb_dbl_coeffs
[
3
][
3
],
rgb2yuv_dbl_coeffs
[
3
][
3
];
int
in_y_rng
,
in_uv_rng
,
out_y_rng
,
out_uv_rng
;
...
...
@@ -481,9 +490,14 @@ static int convert(AVFilterContext *ctx, void *data, int job_nr, int n_jobs)
s
->
dsp
.
multiply3x3
(
rgb
,
s
->
rgb_stride
,
w
,
h
,
s
->
lrgb2lrgb_coeffs
);
apply_lut
(
rgb
,
s
->
rgb_stride
,
w
,
h
,
s
->
delin_lut
);
}
if
(
s
->
dither
==
DITHER_FSB
)
{
s
->
rgb2yuv_fsb
(
out_data
,
td
->
out_linesize
,
rgb
,
s
->
rgb_stride
,
w
,
h
,
s
->
rgb2yuv_coeffs
,
s
->
yuv_offset
[
1
],
s
->
dither_scratch
);
}
else
{
s
->
rgb2yuv
(
out_data
,
td
->
out_linesize
,
rgb
,
s
->
rgb_stride
,
w
,
h
,
s
->
rgb2yuv_coeffs
,
s
->
yuv_offset
[
1
]);
}
}
return
0
;
}
...
...
@@ -749,6 +763,8 @@ static int create_filtergraph(AVFilterContext *ctx,
av_assert2
(
s
->
rgb2yuv_coeffs
[
1
][
2
][
0
]
==
s
->
rgb2yuv_coeffs
[
2
][
0
][
0
]);
s
->
rgb2yuv
=
s
->
dsp
.
rgb2yuv
[(
out_desc
->
comp
[
0
].
depth
-
8
)
>>
1
]
[
out_desc
->
log2_chroma_h
+
out_desc
->
log2_chroma_w
];
s
->
rgb2yuv_fsb
=
s
->
dsp
.
rgb2yuv_fsb
[(
out_desc
->
comp
[
0
].
depth
-
8
)
>>
1
]
[
out_desc
->
log2_chroma_h
+
out_desc
->
log2_chroma_w
];
emms
=
1
;
}
...
...
@@ -799,6 +815,12 @@ static void uninit(AVFilterContext *ctx)
av_freep
(
&
s
->
rgb
[
1
]);
av_freep
(
&
s
->
rgb
[
2
]);
s
->
rgb_sz
=
0
;
av_freep
(
&
s
->
dither_scratch_base
[
0
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
0
][
1
]);
av_freep
(
&
s
->
dither_scratch_base
[
1
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
1
][
1
]);
av_freep
(
&
s
->
dither_scratch_base
[
2
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
2
][
1
]);
av_freep
(
&
s
->
lin_lut
);
}
...
...
@@ -839,15 +861,45 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
out
->
color_range
=
s
->
user_rng
==
AVCOL_RANGE_UNSPECIFIED
?
in
->
color_range
:
s
->
user_rng
;
if
(
rgb_sz
!=
s
->
rgb_sz
)
{
const
AVPixFmtDescriptor
*
desc
=
av_pix_fmt_desc_get
(
out
->
format
);
int
uvw
=
in
->
width
>>
desc
->
log2_chroma_w
;
av_freep
(
&
s
->
rgb
[
0
]);
av_freep
(
&
s
->
rgb
[
1
]);
av_freep
(
&
s
->
rgb
[
2
]);
s
->
rgb_sz
=
0
;
av_freep
(
&
s
->
dither_scratch_base
[
0
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
0
][
1
]);
av_freep
(
&
s
->
dither_scratch_base
[
1
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
1
][
1
]);
av_freep
(
&
s
->
dither_scratch_base
[
2
][
0
]);
av_freep
(
&
s
->
dither_scratch_base
[
2
][
1
]);
s
->
rgb
[
0
]
=
av_malloc
(
rgb_sz
);
s
->
rgb
[
1
]
=
av_malloc
(
rgb_sz
);
s
->
rgb
[
2
]
=
av_malloc
(
rgb_sz
);
if
(
!
s
->
rgb
[
0
]
||
!
s
->
rgb
[
1
]
||
!
s
->
rgb
[
2
])
{
s
->
dither_scratch_base
[
0
][
0
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
0
][
0
])
*
(
in
->
width
+
4
));
s
->
dither_scratch_base
[
0
][
1
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
0
][
1
])
*
(
in
->
width
+
4
));
s
->
dither_scratch_base
[
1
][
0
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
1
][
0
])
*
(
uvw
+
4
));
s
->
dither_scratch_base
[
1
][
1
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
1
][
1
])
*
(
uvw
+
4
));
s
->
dither_scratch_base
[
2
][
0
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
2
][
0
])
*
(
uvw
+
4
));
s
->
dither_scratch_base
[
2
][
1
]
=
av_malloc
(
sizeof
(
*
s
->
dither_scratch_base
[
2
][
1
])
*
(
uvw
+
4
));
s
->
dither_scratch
[
0
][
0
]
=
&
s
->
dither_scratch_base
[
0
][
0
][
1
];
s
->
dither_scratch
[
0
][
1
]
=
&
s
->
dither_scratch_base
[
0
][
1
][
1
];
s
->
dither_scratch
[
1
][
0
]
=
&
s
->
dither_scratch_base
[
1
][
0
][
1
];
s
->
dither_scratch
[
1
][
1
]
=
&
s
->
dither_scratch_base
[
1
][
1
][
1
];
s
->
dither_scratch
[
2
][
0
]
=
&
s
->
dither_scratch_base
[
2
][
0
][
1
];
s
->
dither_scratch
[
2
][
1
]
=
&
s
->
dither_scratch_base
[
2
][
1
][
1
];
if
(
!
s
->
rgb
[
0
]
||
!
s
->
rgb
[
1
]
||
!
s
->
rgb
[
2
]
||
!
s
->
dither_scratch_base
[
0
][
0
]
||
!
s
->
dither_scratch_base
[
0
][
1
]
||
!
s
->
dither_scratch_base
[
1
][
0
]
||
!
s
->
dither_scratch_base
[
1
][
1
]
||
!
s
->
dither_scratch_base
[
2
][
0
]
||
!
s
->
dither_scratch_base
[
2
][
1
])
{
uninit
(
ctx
);
return
AVERROR
(
ENOMEM
);
}
...
...
@@ -987,6 +1039,12 @@ static const AVOption colorspace_options[] = {
{
"fast"
,
"Ignore primary chromaticity and gamma correction"
,
OFFSET
(
fast_mode
),
AV_OPT_TYPE_BOOL
,
{
.
i64
=
0
},
0
,
1
,
FLAGS
},
{
"dither"
,
"Dithering mode"
,
OFFSET
(
dither
),
AV_OPT_TYPE_INT
,
{
.
i64
=
DITHER_NONE
},
DITHER_NONE
,
DITHER_NB
-
1
,
FLAGS
,
"dither"
},
ENUM
(
"none"
,
DITHER_NONE
,
"dither"
),
ENUM
(
"fsb"
,
DITHER_FSB
,
"dither"
),
{
NULL
}
};
...
...
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