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Stefan Westerfeld
ffmpeg
Commits
a5b3b65d
Commit
a5b3b65d
authored
Jun 02, 2022
by
rcombs
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lavfi/colorspace: add ff_matrix_mul_3x3_vec
Signed-off-by:
rcombs
<
rcombs@rcombs.me
>
parent
b3e261ba
Changes
2
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2 changed files
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12 additions
and
0 deletions
+12
-0
colorspace.c
libavfilter/colorspace.c
+11
-0
colorspace.h
libavfilter/colorspace.h
+1
-0
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libavfilter/colorspace.c
View file @
a5b3b65d
...
...
@@ -62,6 +62,17 @@ void ff_matrix_mul_3x3(double dst[3][3],
src2
[
m
][
1
]
*
src1
[
1
][
n
]
+
src2
[
m
][
2
]
*
src1
[
2
][
n
];
}
void
ff_matrix_mul_3x3_vec
(
double
dst
[
3
],
const
double
vec
[
3
],
const
double
mat
[
3
][
3
])
{
int
m
;
for
(
m
=
0
;
m
<
3
;
m
++
)
dst
[
m
]
=
vec
[
0
]
*
mat
[
m
][
0
]
+
vec
[
1
]
*
mat
[
m
][
1
]
+
vec
[
2
]
*
mat
[
m
][
2
];
}
/*
* see e.g. http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
*/
...
...
libavfilter/colorspace.h
View file @
a5b3b65d
...
...
@@ -29,6 +29,7 @@
void
ff_matrix_invert_3x3
(
const
double
in
[
3
][
3
],
double
out
[
3
][
3
]);
void
ff_matrix_mul_3x3
(
double
dst
[
3
][
3
],
const
double
src1
[
3
][
3
],
const
double
src2
[
3
][
3
]);
void
ff_matrix_mul_3x3_vec
(
double
dst
[
3
],
const
double
vec
[
3
],
const
double
mat
[
3
][
3
]);
void
ff_fill_rgb2xyz_table
(
const
AVPrimaryCoefficients
*
coeffs
,
const
AVWhitepointCoefficients
*
wp
,
double
rgb2xyz
[
3
][
3
]);
...
...
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