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VideoLAN
bitstream
Commits
54fa9878
Commit
54fa9878
authored
Oct 10, 2011
by
Georgi Chorbadzhiyski
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mpeg/psi: Add support for descriptor 0x0b (System clock).
parent
58776501
Changes
3
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3 changed files
with
113 additions
and
0 deletions
+113
-0
mpeg/psi/desc_0b.h
mpeg/psi/desc_0b.h
+111
-0
mpeg/psi/descs_list.h
mpeg/psi/descs_list.h
+1
-0
mpeg/psi/descs_print.h
mpeg/psi/descs_print.h
+1
-0
No files found.
mpeg/psi/desc_0b.h
0 → 100644
View file @
54fa9878
/*****************************************************************************
* desc_0b.h: ISO/IEC 13818-1 Descriptor 0x0b (System clock descriptor)
*****************************************************************************
* Copyright (C) 2011 Unix Solutions Ltd.
*
* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
/*
* Normative references:
* - ISO/IEC 13818-1:2007(E) (MPEG-2 Systems)
*/
#ifndef __BITSTREAM_MPEG_DESC_0B_H__
#define __BITSTREAM_MPEG_DESC_0B_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern
"C"
{
#endif
/*****************************************************************************
* Descriptor 0x0b: System clock descriptor
*****************************************************************************/
#define DESC0B_HEADER_SIZE (DESC_HEADER_SIZE + 2)
static
inline
void
desc0b_init
(
uint8_t
*
p_desc
)
{
desc_set_tag
(
p_desc
,
0x0b
);
desc_set_length
(
p_desc
,
DESC0B_HEADER_SIZE
-
DESC_HEADER_SIZE
);
}
static
inline
bool
desc0b_get_external_clock_reference_indicator
(
const
uint8_t
*
p_desc
)
{
return
(
p_desc
[
2
]
&
0x80
)
==
0x80
;
}
static
inline
void
desc0b_set_external_clock_reference_indicator
(
uint8_t
*
p_desc
,
bool
b_external_clock_reference_indicator
)
{
p_desc
[
2
]
=
(
b_external_clock_reference_indicator
?
(
p_desc
[
2
]
|
0x80
)
:
(
p_desc
[
2
]
&~
0x80
))
|
0x40
;
}
static
inline
uint8_t
desc0b_get_clock_accuracy_integer
(
const
uint8_t
*
p_desc
)
{
return
p_desc
[
2
]
&
0x3f
;
}
static
inline
void
desc0b_set_clock_accuracy_integer
(
uint8_t
*
p_desc
,
uint8_t
i_clock_accuracy_integer
)
{
p_desc
[
2
]
=
(
p_desc
[
2
]
&
0x80
)
|
0x40
|
(
i_clock_accuracy_integer
&
0x3f
);
}
static
inline
uint8_t
desc0b_get_clock_accuracy_exponent
(
const
uint8_t
*
p_desc
)
{
return
p_desc
[
3
]
>>
5
;
}
static
inline
void
desc0b_set_clock_accuracy_exponent
(
uint8_t
*
p_desc
,
uint8_t
i_clock_accuracy_exponent
)
{
p_desc
[
3
]
=
(
i_clock_accuracy_exponent
<<
5
)
|
0x1F
;
}
static
inline
bool
desc0b_validate
(
const
uint8_t
*
p_desc
)
{
return
desc_get_length
(
p_desc
)
>=
DESC0B_HEADER_SIZE
-
DESC_HEADER_SIZE
;
}
static
inline
void
desc0b_print
(
const
uint8_t
*
p_desc
,
f_print
pf_print
,
void
*
opaque
,
print_type_t
i_print_type
)
{
switch
(
i_print_type
)
{
case
PRINT_XML
:
pf_print
(
opaque
,
"<SYSTEM_CLOCK_DESC external_clock_reference_indicator=
\"
%u
\"
clock_accuracy_integer=
\"
%u
\"
clock_accuracy_exponent=
\"
%u
\"
/>"
,
desc0b_get_external_clock_reference_indicator
(
p_desc
),
desc0b_get_clock_accuracy_integer
(
p_desc
),
desc0b_get_clock_accuracy_exponent
(
p_desc
));
break
;
default:
pf_print
(
opaque
,
" - desc 0b system_clock external_clock_reference_indicator=%u clock_accuracy_integer=%u clock_accuracy_exponent=%u"
,
desc0b_get_external_clock_reference_indicator
(
p_desc
),
desc0b_get_clock_accuracy_integer
(
p_desc
),
desc0b_get_clock_accuracy_exponent
(
p_desc
));
}
}
#ifdef __cplusplus
}
#endif
#endif
mpeg/psi/descs_list.h
View file @
54fa9878
...
...
@@ -43,5 +43,6 @@
#include <bitstream/mpeg/psi/desc_08.h>
#include <bitstream/mpeg/psi/desc_09.h>
#include <bitstream/mpeg/psi/desc_0a.h>
#include <bitstream/mpeg/psi/desc_0b.h>
#endif
mpeg/psi/descs_print.h
View file @
54fa9878
...
...
@@ -109,6 +109,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
CASE_DESC
(
08
)
CASE_DESC
(
09
)
CASE_DESC
(
0
a
)
CASE_DESC
(
0
b
)
CASE_DESC_ICONV
(
40
)
CASE_DESC
(
41
)
CASE_DESC
(
43
)
...
...
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