LibJPEG
JQUANT_TBL::quantval
is only used within LibJPEG.
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STM32 Libraries and Samples
LibJPEG
JQUANT_TBL::quantval
JQUANT_TBL::quantval field
Syntax
from
jpeglib.h:97
UINT16
quantval
[
DCTSIZE2
]
;
References
Location
Referrer
Text
jpeglib.h:97
UINT16
quantval
[
DCTSIZE2
]
;
/* quantization step for each coefficient */
jcdctmgr.c:370
start_pass_fdctmgr()
dtbl
[
i
]
=
(
(
DCTELEM
)
qtbl
->
quantval
[
i
]
)
<
<
3
;
jcdctmgr.c:406
start_pass_fdctmgr()
DESCALE
(
MULTIPLY16V16
(
(
INT32
)
qtbl
->
quantval
[
i
]
,
jcdctmgr.c:442
start_pass_fdctmgr()
(
1.0
/
(
(
(
double
)
qtbl
->
quantval
[
i
]
*
jcmarker.c:158
emit_dqt()
if
(
qtbl
->
quantval
[
cinfo
->
natural_order
[
i
]
]
>
255
)
jcmarker.c:172
emit_dqt()
unsigned
int
qval
=
qtbl
->
quantval
[
cinfo
->
natural_order
[
i
]
]
;
jcparam.c:56
jpeg_add_quant_table()
(
*
qtblptr
)
->
quantval
[
i
]
=
(
UINT16
)
temp
;
jctrans.c:98
jpeg_copy_critical_parameters()
MEMCOPY
(
(
*
qtblptr
)
->
quantval
,
jctrans.c:99
jpeg_copy_critical_parameters()
srcinfo
->
quant_tbl_ptrs
[
tblno
]
->
quantval
,
jctrans.c:100
jpeg_copy_critical_parameters()
SIZEOF
(
(
*
qtblptr
)
->
quantval
)
)
;
jctrans.c:129
jpeg_copy_critical_parameters()
if
(
c_quant
->
quantval
[
coefi
]
!=
slot_quant
->
quantval
[
coefi
]
)
jddctmgr.c:282
start_pass()
ismtbl
[
i
]
=
(
ISLOW_MULT_TYPE
)
qtbl
->
quantval
[
i
]
;
jddctmgr.c:314
start_pass()
DESCALE
(
MULTIPLY16V16
(
(
INT32
)
qtbl
->
quantval
[
i
]
,
jddctmgr.c:341
start_pass()
(
(
double
)
qtbl
->
quantval
[
i
]
*
jdmarker.c:527
get_dqt()
quant_ptr
->
quantval
[
i
]
=
1
;
jdmarker.c:536
get_dqt()
quant_ptr
->
quantval
[
i
]
=
1
;
jdmarker.c:559
get_dqt()
quant_ptr
->
quantval
[
natural_order
[
i
]
]
=
(
UINT16
)
tmp
;
jdmarker.c:565
get_dqt()
quant_ptr
->
quantval
[
i
]
,
quant_ptr
->
quantval
[
i
+
1
]
,
jdmarker.c:566
get_dqt()
quant_ptr
->
quantval
[
i
+
2
]
,
quant_ptr
->
quantval
[
i
+
3
]
,
jdmarker.c:567
get_dqt()
quant_ptr
->
quantval
[
i
+
4
]
,
quant_ptr
->
quantval
[
i
+
5
]
,
jdmarker.c:568
get_dqt()
quant_ptr
->
quantval
[
i
+
6
]
,
quant_ptr
->
quantval
[
i
+
7
]
)
;
Data Use
Functions reading
JQUANT_TBL::quantval
JQUANT_TBL::quantval
start_pass_fdctmgr()
emit_dqt()
jpeg_add_quant_table()
jpeg_copy_critical_parameters()
start_pass()
get_dqt()
all items filtered out
Type of
JQUANT_TBL::quantval
JQUANT_TBL::quantval
UINT16
all items filtered out