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Linshizhi
ffmpeg.wasm-core
Commits
ff7913ae
Commit
ff7913ae
authored
Oct 04, 2011
by
Kieran Kunhya
Committed by
Ronald S. Bultje
Oct 22, 2011
Browse files
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Browse Files
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Email Patches
Plain Diff
Split up yuv2yuvX functions
Signed-off-by:
Ronald S. Bultje
<
rsbultje@gmail.com
>
parent
34e8d147
Hide whitespace changes
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Showing
3 changed files
with
102 additions
and
200 deletions
+102
-200
swscale_altivec.c
libswscale/ppc/swscale_altivec.c
+1
-1
swscale.c
libswscale/swscale.c
+74
-182
swscale_internal.h
libswscale/swscale_internal.h
+27
-17
No files found.
libswscale/ppc/swscale_altivec.c
View file @
ff7913ae
...
...
@@ -405,7 +405,7 @@ void ff_sws_init_swScale_altivec(SwsContext *c)
if
(
!
is16BPS
(
dstFormat
)
&&
!
is9_OR_10BPS
(
dstFormat
)
&&
dstFormat
!=
PIX_FMT_NV12
&&
dstFormat
!=
PIX_FMT_NV21
&&
!
c
->
alpPixBuf
)
{
c
->
yuv2yuvX
=
yuv2yuvX_altivec_real
;
//
c->yuv2yuvX = yuv2yuvX_altivec_real;
}
/* The following list of supported dstFormat values should
...
...
libswscale/swscale.c
View file @
ff7913ae
...
...
@@ -196,141 +196,67 @@ DECLARE_ALIGNED(8, const uint8_t, ff_sws_pb_64)[8] =
{
64
,
64
,
64
,
64
,
64
,
64
,
64
,
64
};
static
av_always_inline
void
yuv2yuvX16_c_template
(
const
int16_t
*
lumFilter
,
const
int32_t
**
lumSrc
,
int
lumFilterSize
,
const
int16_t
*
chrFilter
,
const
int32_t
**
chrUSrc
,
const
int32_t
**
chrVSrc
,
int
chrFilterSize
,
const
int32_t
**
alpSrc
,
uint16_t
*
dest
[
4
],
int
dstW
,
int
chrDstW
,
yuv2yuvX16_c_template
(
const
int16_t
*
filter
,
int
filterSize
,
const
int32_t
**
src
,
uint16_t
*
dest
,
int
dstW
,
int
big_endian
,
int
output_bits
)
{
//FIXME Optimize (just quickly written not optimized..)
int
i
;
uint16_t
*
yDest
=
dest
[
0
],
*
uDest
=
dest
[
1
],
*
vDest
=
dest
[
2
],
*
aDest
=
CONFIG_SWSCALE_ALPHA
?
dest
[
3
]
:
NULL
;
int
shift
=
15
+
16
-
output_bits
-
1
;
#define output_pixel(pos, val) \
if (big_endian) { \
AV_WB16(pos, av_clip_uint16(val >> shift)); \
} else { \
AV_WL16(pos, av_clip_uint16(val >> shift)); \
}
int
i
;
int
shift
=
15
+
16
-
output_bits
-
1
;
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
1
<<
(
30
-
output_bits
-
1
);
int
j
;
for
(
j
=
0
;
j
<
lumF
ilterSize
;
j
++
)
val
+=
(
lumSrc
[
j
][
i
]
*
lumF
ilter
[
j
])
>>
1
;
for
(
j
=
0
;
j
<
f
ilterSize
;
j
++
)
val
+=
(
src
[
j
][
i
]
*
f
ilter
[
j
])
>>
1
;
output_pixel
(
&
yDest
[
i
],
val
);
}
if
(
uDest
)
{
for
(
i
=
0
;
i
<
chrDstW
;
i
++
)
{
int
u
=
1
<<
(
30
-
output_bits
-
1
);
int
v
=
1
<<
(
30
-
output_bits
-
1
);
int
j
;
for
(
j
=
0
;
j
<
chrFilterSize
;
j
++
)
{
u
+=
(
chrUSrc
[
j
][
i
]
*
chrFilter
[
j
])
>>
1
;
v
+=
(
chrVSrc
[
j
][
i
]
*
chrFilter
[
j
])
>>
1
;
}
output_pixel
(
&
uDest
[
i
],
u
);
output_pixel
(
&
vDest
[
i
],
v
);
}
}
if
(
CONFIG_SWSCALE_ALPHA
&&
aDest
)
{
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
1
<<
(
30
-
output_bits
-
1
);
int
j
;
for
(
j
=
0
;
j
<
lumFilterSize
;
j
++
)
val
+=
(
alpSrc
[
j
][
i
]
*
lumFilter
[
j
])
>>
1
;
output_pixel
(
&
aDest
[
i
],
val
);
}
output_pixel
(
&
dest
[
i
],
val
);
}
#undef output_pixel
}
static
av_always_inline
void
yuv2yuvX10_c_template
(
const
int16_t
*
lumFilter
,
const
int16_t
**
lumSrc
,
int
lumFilterSize
,
const
int16_t
*
chrFilter
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
int
chrFilterSize
,
const
int16_t
**
alpSrc
,
uint16_t
*
dest
[
4
],
int
dstW
,
int
chrDstW
,
int
big_endian
,
int
output_bits
)
{
//FIXME Optimize (just quickly written not optimized..)
int
i
;
uint16_t
*
yDest
=
dest
[
0
],
*
uDest
=
dest
[
1
],
*
vDest
=
dest
[
2
],
*
aDest
=
CONFIG_SWSCALE_ALPHA
?
dest
[
3
]
:
NULL
;
int
shift
=
11
+
16
-
output_bits
;
#define output_pixel(pos, val) \
if (big_endian) { \
AV_WB16(pos, av_clip_uintp2(val >> shift, output_bits)); \
} else { \
AV_WL16(pos, av_clip_uintp2(val >> shift, output_bits)); \
}
static
av_always_inline
void
yuv2yuvX10_c_template
(
const
int16_t
*
filter
,
int
filterSize
,
const
int16_t
**
src
,
uint16_t
*
dest
,
int
dstW
,
int
big_endian
,
int
output_bits
)
{
int
i
;
int
shift
=
11
+
16
-
output_bits
;
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
1
<<
(
26
-
output_bits
);
int
j
;
for
(
j
=
0
;
j
<
lumF
ilterSize
;
j
++
)
val
+=
lumSrc
[
j
][
i
]
*
lumF
ilter
[
j
];
for
(
j
=
0
;
j
<
f
ilterSize
;
j
++
)
val
+=
src
[
j
][
i
]
*
f
ilter
[
j
];
output_pixel
(
&
yD
est
[
i
],
val
);
output_pixel
(
&
d
est
[
i
],
val
);
}
}
if
(
uDest
)
{
for
(
i
=
0
;
i
<
chrDstW
;
i
++
)
{
int
u
=
1
<<
(
26
-
output_bits
);
int
v
=
1
<<
(
26
-
output_bits
);
int
j
;
for
(
j
=
0
;
j
<
chrFilterSize
;
j
++
)
{
u
+=
chrUSrc
[
j
][
i
]
*
chrFilter
[
j
];
v
+=
chrVSrc
[
j
][
i
]
*
chrFilter
[
j
];
}
output_pixel
(
&
uDest
[
i
],
u
);
output_pixel
(
&
vDest
[
i
],
v
);
}
}
if
(
CONFIG_SWSCALE_ALPHA
&&
aDest
)
{
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
1
<<
(
26
-
output_bits
);
int
j
;
for
(
j
=
0
;
j
<
lumFilterSize
;
j
++
)
val
+=
alpSrc
[
j
][
i
]
*
lumFilter
[
j
];
output_pixel
(
&
aDest
[
i
],
val
);
}
}
#undef output_pixel
}
#define yuv2NBPS(bits, BE_LE, is_be, yuv2yuvX_template_fn, typeX_t) \
static void yuv2yuvX ## bits ## BE_LE ## _c(SwsContext *c, const int16_t *lumFilter, \
const int16_t **_lumSrc, int lumFilterSize, \
const int16_t *chrFilter, const int16_t **_chrUSrc, \
const int16_t **_chrVSrc, \
int chrFilterSize, const int16_t **_alpSrc, \
uint8_t *_dest[4], int dstW, int chrDstW) \
static void yuv2yuvX ## bits ## BE_LE ## _c(const int16_t *filter, int filterSize, \
const int16_t **src, uint16_t *dest, int dstW, \
const uint8_t *dither, int offset)\
{ \
const typeX_t **lumSrc = (const typeX_t **) _lumSrc, \
**chrUSrc = (const typeX_t **) _chrUSrc, \
**chrVSrc = (const typeX_t **) _chrVSrc, \
**alpSrc = (const typeX_t **) _alpSrc; \
yuv2yuvX_template_fn(lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, (uint16_t **) _dest, \
dstW, chrDstW, is_be, bits); \
yuv2yuvX_template_fn(filter, filterSize, (const typeX_t **) src, \
dest, dstW, is_be, bits); \
}
yuv2NBPS
(
9
,
BE
,
1
,
yuv2yuvX10_c_template
,
int16_t
);
yuv2NBPS
(
9
,
LE
,
0
,
yuv2yuvX10_c_template
,
int16_t
);
...
...
@@ -339,51 +265,19 @@ yuv2NBPS(10, LE, 0, yuv2yuvX10_c_template, int16_t);
yuv2NBPS
(
16
,
BE
,
1
,
yuv2yuvX16_c_template
,
int32_t
);
yuv2NBPS
(
16
,
LE
,
0
,
yuv2yuvX16_c_template
,
int32_t
);
static
void
yuv2yuvX_c
(
SwsContext
*
c
,
const
int16_t
*
lumFilter
,
const
int16_t
**
lumSrc
,
int
lumFilterSize
,
const
int16_t
*
chrFilter
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
int
chrFilterSize
,
const
int16_t
**
alpSrc
,
uint8_t
*
dest
[
4
],
int
dstW
,
int
chrDstW
)
static
void
yuv2yuvX_c
(
const
int16_t
*
filter
,
int
filterSize
,
const
int16_t
**
src
,
uint8_t
*
dest
,
int
dstW
,
const
uint8_t
*
dither
,
int
offset
)
{
uint8_t
*
yDest
=
dest
[
0
],
*
uDest
=
dest
[
1
],
*
vDest
=
dest
[
2
],
*
aDest
=
CONFIG_SWSCALE_ALPHA
?
dest
[
3
]
:
NULL
;
int
i
;
const
uint8_t
*
lumDither
=
c
->
lumDither8
,
*
chrDither
=
c
->
chrDither8
;
//FIXME Optimize (just quickly written not optimized..)
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
lumDither
[
i
&
7
]
<<
12
;
int
val
=
dither
[(
i
+
offset
)
&
7
]
<<
12
;
int
j
;
for
(
j
=
0
;
j
<
lumF
ilterSize
;
j
++
)
val
+=
lumSrc
[
j
][
i
]
*
lumF
ilter
[
j
];
for
(
j
=
0
;
j
<
f
ilterSize
;
j
++
)
val
+=
src
[
j
][
i
]
*
f
ilter
[
j
];
yD
est
[
i
]
=
av_clip_uint8
(
val
>>
19
);
d
est
[
i
]
=
av_clip_uint8
(
val
>>
19
);
}
if
(
uDest
)
for
(
i
=
0
;
i
<
chrDstW
;
i
++
)
{
int
u
=
chrDither
[
i
&
7
]
<<
12
;
int
v
=
chrDither
[(
i
+
3
)
&
7
]
<<
12
;
int
j
;
for
(
j
=
0
;
j
<
chrFilterSize
;
j
++
)
{
u
+=
chrUSrc
[
j
][
i
]
*
chrFilter
[
j
];
v
+=
chrVSrc
[
j
][
i
]
*
chrFilter
[
j
];
}
uDest
[
i
]
=
av_clip_uint8
(
u
>>
19
);
vDest
[
i
]
=
av_clip_uint8
(
v
>>
19
);
}
if
(
CONFIG_SWSCALE_ALPHA
&&
aDest
)
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
lumDither
[
i
&
7
]
<<
12
;
int
j
;
for
(
j
=
0
;
j
<
lumFilterSize
;
j
++
)
val
+=
alpSrc
[
j
][
i
]
*
lumFilter
[
j
];
aDest
[
i
]
=
av_clip_uint8
(
val
>>
19
);
}
}
static
void
yuv2yuv1_c
(
const
int16_t
*
src
,
uint8_t
*
dest
,
int
dstW
,
...
...
@@ -396,30 +290,13 @@ static void yuv2yuv1_c(const int16_t *src, uint8_t *dest, int dstW,
}
}
static
void
yuv2nv12X_c
(
SwsContext
*
c
,
const
int16_t
*
lumFilter
,
const
int16_t
**
lumSrc
,
int
lumFilterSize
,
const
int16_t
*
chrFilter
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
int
chrFilterSize
,
const
int16_t
**
alpSrc
,
uint8_t
*
dest
[
4
],
int
dstW
,
int
chrDstW
)
static
void
yuv2nv12X_chroma_c
(
SwsContext
*
c
,
const
int16_t
*
chrFilter
,
int
chrFilterSize
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
uint8_t
*
dest
,
int
chrDstW
)
{
uint8_t
*
yDest
=
dest
[
0
],
*
uDest
=
dest
[
1
];
enum
PixelFormat
dstFormat
=
c
->
dstFormat
;
const
uint8_t
*
lumDither
=
c
->
lumDither8
,
*
chrDither
=
c
->
chrDither8
;
//FIXME Optimize (just quickly written not optimized..)
const
uint8_t
*
chrDither
=
c
->
chrDither8
;
int
i
;
for
(
i
=
0
;
i
<
dstW
;
i
++
)
{
int
val
=
lumDither
[
i
&
7
]
<<
12
;
int
j
;
for
(
j
=
0
;
j
<
lumFilterSize
;
j
++
)
val
+=
lumSrc
[
j
][
i
]
*
lumFilter
[
j
];
yDest
[
i
]
=
av_clip_uint8
(
val
>>
19
);
}
if
(
!
uDest
)
return
;
if
(
dstFormat
==
PIX_FMT_NV12
)
for
(
i
=
0
;
i
<
chrDstW
;
i
++
)
{
...
...
@@ -431,8 +308,8 @@ static void yuv2nv12X_c(SwsContext *c, const int16_t *lumFilter,
v
+=
chrVSrc
[
j
][
i
]
*
chrFilter
[
j
];
}
uD
est
[
2
*
i
]
=
av_clip_uint8
(
u
>>
19
);
uD
est
[
2
*
i
+
1
]
=
av_clip_uint8
(
v
>>
19
);
d
est
[
2
*
i
]
=
av_clip_uint8
(
u
>>
19
);
d
est
[
2
*
i
+
1
]
=
av_clip_uint8
(
v
>>
19
);
}
else
for
(
i
=
0
;
i
<
chrDstW
;
i
++
)
{
...
...
@@ -444,8 +321,8 @@ static void yuv2nv12X_c(SwsContext *c, const int16_t *lumFilter,
v
+=
chrVSrc
[
j
][
i
]
*
chrFilter
[
j
];
}
uD
est
[
2
*
i
]
=
av_clip_uint8
(
v
>>
19
);
uD
est
[
2
*
i
+
1
]
=
av_clip_uint8
(
u
>>
19
);
d
est
[
2
*
i
]
=
av_clip_uint8
(
v
>>
19
);
d
est
[
2
*
i
+
1
]
=
av_clip_uint8
(
u
>>
19
);
}
}
...
...
@@ -2117,26 +1994,29 @@ static av_always_inline void hcscale(SwsContext *c, int16_t *dst1, int16_t *dst2
static
av_always_inline
void
find_c_packed_planar_out_funcs
(
SwsContext
*
c
,
yuv2planar1_fn
*
yuv2yuv1
,
yuv2planarX_fn
*
yuv2yuvX
,
yuv2planar1_fn
*
yuv2yuv1
,
yuv2planarX_fn
*
yuv2planeX_luma
,
yuv2planarX_fn
*
yuv2planeX_chroma
,
yuv2interleavedX_fn
*
yuv2nv12X_chroma
,
yuv2packed1_fn
*
yuv2packed1
,
yuv2packed2_fn
*
yuv2packed2
,
yuv2packedX_fn
*
yuv2packedX
)
{
enum
PixelFormat
dstFormat
=
c
->
dstFormat
;
if
(
dstFormat
==
PIX_FMT_NV12
||
dstFormat
==
PIX_FMT_NV21
)
{
*
yuv2yuvX
=
yuv2nv12X_c
;
*
yuv2planeX_luma
=
yuv2yuvX_c
;
*
yuv2nv12X_chroma
=
yuv2nv12X_chroma_c
;
}
else
if
(
is16BPS
(
dstFormat
))
{
*
yuv2
yuvX
=
isBE
(
dstFormat
)
?
yuv2yuvX16BE_c
:
yuv2yuvX16LE_c
;
*
yuv2
planeX_luma
=
*
yuv2planeX_chroma
=
isBE
(
dstFormat
)
?
yuv2yuvX16BE_c
:
yuv2yuvX16LE_c
;
}
else
if
(
is9_OR_10BPS
(
dstFormat
))
{
if
(
av_pix_fmt_descriptors
[
dstFormat
].
comp
[
0
].
depth_minus1
==
8
)
{
*
yuv2
yuvX
=
isBE
(
dstFormat
)
?
yuv2yuvX9BE_c
:
yuv2yuvX9LE_c
;
*
yuv2
planeX_luma
=
*
yuv2planeX_chroma
=
isBE
(
dstFormat
)
?
yuv2yuvX9BE_c
:
yuv2yuvX9LE_c
;
}
else
{
*
yuv2
yuvX
=
isBE
(
dstFormat
)
?
yuv2yuvX10BE_c
:
yuv2yuvX10LE_c
;
*
yuv2
planeX_luma
=
*
yuv2planeX_chroma
=
isBE
(
dstFormat
)
?
yuv2yuvX10BE_c
:
yuv2yuvX10LE_c
;
}
}
else
{
*
yuv2yuv1
=
yuv2yuv1_c
;
*
yuv2
yuvX
=
yuv2yuvX_c
;
*
yuv2
planeX_luma
=
*
yuv2planeX_chroma
=
yuv2yuvX_c
;
}
if
(
c
->
flags
&
SWS_FULL_CHR_H_INT
)
{
switch
(
dstFormat
)
{
case
PIX_FMT_RGBA
:
...
...
@@ -2396,7 +2276,9 @@ static int swScale(SwsContext *c, const uint8_t* src[],
int
lastDstY
;
uint32_t
*
pal
=
c
->
pal_yuv
;
yuv2planar1_fn
yuv2yuv1
=
c
->
yuv2yuv1
;
yuv2planarX_fn
yuv2yuvX
=
c
->
yuv2yuvX
;
yuv2planarX_fn
yuv2planeX_luma
=
c
->
yuv2planeX_luma
;
yuv2planarX_fn
yuv2planeX_chroma
=
c
->
yuv2planeX_chroma
;
yuv2interleavedX_fn
yuv2nv12X_chroma
=
c
->
yuv2nv12X_chroma
;
yuv2packed1_fn
yuv2packed1
=
c
->
yuv2packed1
;
yuv2packed2_fn
yuv2packed2
=
c
->
yuv2packed2
;
yuv2packedX_fn
yuv2packedX
=
c
->
yuv2packedX
;
...
...
@@ -2548,8 +2430,8 @@ static int swScale(SwsContext *c, const uint8_t* src[],
}
if
(
dstY
>=
dstH
-
2
)
{
// hmm looks like we can't use MMX here without overwriting this array's tail
find_c_packed_planar_out_funcs
(
c
,
&
yuv2yuv1
,
&
yuv2
yuvX
,
&
yuv2packed1
,
&
yuv2packed2
,
find_c_packed_planar_out_funcs
(
c
,
&
yuv2yuv1
,
&
yuv2
planeX_luma
,
&
yuv2planeX_chroma
,
&
yuv2
nv12X_chroma
,
&
yuv2
packed1
,
&
yuv2packed2
,
&
yuv2packedX
);
}
...
...
@@ -2564,7 +2446,13 @@ static int swScale(SwsContext *c, const uint8_t* src[],
dest
[
1
]
=
dest
[
2
]
=
NULL
;
//FIXME split functions in lumi / chromi
const
int16_t
*
alpBuf
=
(
CONFIG_SWSCALE_ALPHA
&&
alpPixBuf
)
?
alpSrcPtr
[
0
]
:
NULL
;
if
(
c
->
yuv2yuv1
&&
vLumFilterSize
==
1
&&
vChrFilterSize
==
1
)
{
// unscaled YV12
if
(
dstFormat
==
PIX_FMT_NV12
||
dstFormat
==
PIX_FMT_NV21
)
{
yuv2planeX_luma
(
vLumFilter
+
dstY
*
vLumFilterSize
,
vLumFilterSize
,
lumSrcPtr
,
dest
[
0
],
dstW
,
c
->
lumDither8
,
0
);
if
(
dest
[
1
]){
yuv2nv12X_chroma
(
c
,
vChrFilter
+
chrDstY
*
vChrFilterSize
,
vChrFilterSize
,
chrUSrcPtr
,
chrVSrcPtr
,
dest
[
1
],
chrDstW
);
}
}
else
if
(
c
->
yuv2yuv1
&&
vLumFilterSize
==
1
&&
vChrFilterSize
==
1
)
{
// unscaled YV12
yuv2yuv1
(
lumSrcPtr
[
0
],
dest
[
0
],
dstW
,
c
->
lumDither8
,
0
);
if
(
dest
[
1
]){
...
...
@@ -2575,11 +2463,15 @@ static int swScale(SwsContext *c, const uint8_t* src[],
if
(
alpBuf
&&
dest
[
3
])
yuv2yuv1
(
alpBuf
,
dest
[
3
],
dstW
,
c
->
lumDither8
,
0
);
}
else
{
//General YV12
yuv2yuvX
(
c
,
vLumFilter
+
dstY
*
vLumFilterSize
,
lumSrcPtr
,
vLumFilterSize
,
vChrFilter
+
chrDstY
*
vChrFilterSize
,
chrUSrcPtr
,
chrVSrcPtr
,
vChrFilterSize
,
alpSrcPtr
,
dest
,
dstW
,
chrDstW
);
yuv2planeX_luma
(
vLumFilter
+
dstY
*
vLumFilterSize
,
vLumFilterSize
,
lumSrcPtr
,
dest
[
0
],
dstW
,
c
->
lumDither8
,
0
);
if
(
dest
[
1
]){
yuv2planeX_chroma
(
vChrFilter
+
chrDstY
*
vChrFilterSize
,
vChrFilterSize
,
chrUSrcPtr
,
dest
[
1
],
chrDstW
,
c
->
chrDither8
,
0
);
yuv2planeX_chroma
(
vChrFilter
+
chrDstY
*
vChrFilterSize
,
vChrFilterSize
,
chrVSrcPtr
,
dest
[
2
],
chrDstW
,
c
->
chrDither8
,
3
);
}
if
(
alpBuf
&&
dest
[
3
])
yuv2planeX_luma
(
vLumFilter
+
dstY
*
vLumFilterSize
,
vLumFilterSize
,
alpSrcPtr
,
dest
[
3
],
dstW
,
c
->
lumDither8
,
0
);
}
}
else
{
assert
(
lumSrcPtr
+
vLumFilterSize
-
1
<
lumPixBuf
+
vLumBufSize
*
2
);
...
...
@@ -2633,8 +2525,8 @@ static av_cold void sws_init_swScale_c(SwsContext *c)
{
enum
PixelFormat
srcFormat
=
c
->
srcFormat
;
find_c_packed_planar_out_funcs
(
c
,
&
c
->
yuv2yuv1
,
&
c
->
yuv2
yuvX
,
&
c
->
yuv2packed1
,
&
c
->
yuv2packed2
,
find_c_packed_planar_out_funcs
(
c
,
&
c
->
yuv2yuv1
,
&
c
->
yuv2
planeX_luma
,
&
c
->
yuv2planeX_chroma
,
&
c
->
yuv2
nv12X_chroma
,
&
c
->
yuv2
packed1
,
&
c
->
yuv2packed2
,
&
c
->
yuv2packedX
);
c
->
chrToYV12
=
NULL
;
...
...
libswscale/swscale_internal.h
View file @
ff7913ae
...
...
@@ -76,33 +76,41 @@ typedef void (*yuv2planar1_fn) (const int16_t *src, uint8_t *dest, int dstW,
const
uint8_t
*
dither
,
int
offset
);
/**
* Write one line of horizontally scaled
Y/U/V/A
to planar output
* Write one line of horizontally scaled
data
to planar output
* with multi-point vertical scaling between input pixels.
*
* @param c SWS scaling context
* @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096]
* @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
* @param filter vertical luma/alpha scaling coefficients, 12bit [0,4096]
* @param src scaled luma (Y) or alpha (A) source data, 15bit for 8-10bit output,
* 19-bit for 16bit output (in int32_t)
* @param lumFilterSize number of vertical luma/alpha input lines to scale
* @param filterSize number of vertical input lines to scale
* @param dest pointer to output plane. For >8bit
* output, this is in uint16_t
* @param dstW width of destination pixels
* @param offset Dither offset
*/
typedef
void
(
*
yuv2planarX_fn
)
(
const
int16_t
*
filter
,
int
filterSize
,
const
int16_t
**
src
,
uint8_t
*
dest
,
int
dstW
,
const
uint8_t
*
dither
,
int
offset
);
/**
* Write one line of horizontally scaled chroma to interleaved output
* with multi-point vertical scaling between input pixels.
*
* @param c SWS scaling context
* @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096]
* @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
* 19-bit for 16bit output (in int32_t)
* @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
* 19-bit for 16bit output (in int32_t)
* @param chrFilterSize number of vertical chroma input lines to scale
* @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
* 19-bit for 16bit output (in int32_t)
* @param dest pointer to the 4 output planes (Y/U/V/A). For >8bit
* @param dest pointer to the output plane. For >8bit
* output, this is in uint16_t
* @param dstW width of dest[0], dest[3], lumSrc and alpSrc in pixels
* @param chrDstW width of dest[1], dest[2], chrUSrc and chrVSrc
* @param dstW width of chroma planes
*/
typedef
void
(
*
yuv2planarX_fn
)
(
struct
SwsContext
*
c
,
const
int16_t
*
lumFilter
,
const
int16_t
**
lumSrc
,
int
lumFilterSize
,
const
int16_t
*
chrFilter
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
int
chrFilterSize
,
const
int16_t
**
alpSrc
,
uint8_t
*
dest
[
4
],
int
dstW
,
int
chrDstW
);
typedef
void
(
*
yuv2interleavedX_fn
)
(
struct
SwsContext
*
c
,
const
int16_t
*
chrFilter
,
int
chrFilterSize
,
const
int16_t
**
chrUSrc
,
const
int16_t
**
chrVSrc
,
uint8_t
*
dest
,
int
dstW
);
/**
* Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB
* output without any additional vertical scaling (or point-scaling). Note
...
...
@@ -405,7 +413,9 @@ typedef struct SwsContext {
/* function pointers for swScale() */
yuv2planar1_fn
yuv2yuv1
;
yuv2planarX_fn
yuv2yuvX
;
yuv2planarX_fn
yuv2planeX_luma
;
yuv2planarX_fn
yuv2planeX_chroma
;
yuv2interleavedX_fn
yuv2nv12X_chroma
;
yuv2packed1_fn
yuv2packed1
;
yuv2packed2_fn
yuv2packed2
;
yuv2packedX_fn
yuv2packedX
;
...
...
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