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videolan
bitstream
Commits
a6ed936b
Commit
a6ed936b
authored
Jun 08, 2011
by
Georgi Chorbadzhiyski
Committed by
Christophe Massiot
Jun 08, 2011
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* Add support for Conditional Access Table
parent
612e3dea
Changes
2
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2 changed files
with
121 additions
and
0 deletions
+121
-0
mpeg/psi.h
mpeg/psi.h
+82
-0
mpeg/psi_print.h
mpeg/psi_print.h
+39
-0
No files found.
mpeg/psi.h
View file @
a6ed936b
...
@@ -966,6 +966,88 @@ static inline void pat_table_print(uint8_t **pp_sections, f_print pf_print,
...
@@ -966,6 +966,88 @@ static inline void pat_table_print(uint8_t **pp_sections, f_print pf_print,
}
}
}
}
/*****************************************************************************
* Conditional Access Table
*****************************************************************************/
#define CAT_PID 0x01
#define CAT_TABLE_ID 0x01
#define CAT_HEADER_SIZE PSI_HEADER_SIZE_SYNTAX1
static
inline
void
cat_init
(
uint8_t
*
p_cat
)
{
psi_init
(
p_cat
,
true
);
psi_set_tableid
(
p_cat
,
CAT_TABLE_ID
);
p_cat
[
1
]
&=
~
0x40
;
psi_set_section
(
p_cat
,
0
);
psi_set_lastsection
(
p_cat
,
0
);
}
static
inline
void
cat_set_length
(
uint8_t
*
p_cat
,
uint16_t
i_cat_length
)
{
psi_set_length
(
p_cat
,
CAT_HEADER_SIZE
+
PSI_CRC_SIZE
-
PSI_HEADER_SIZE
+
i_cat_length
);
}
static
inline
uint16_t
cat_get_desclength
(
const
uint8_t
*
p_cat
)
{
return
psi_get_length
(
p_cat
)
-
(
CAT_HEADER_SIZE
+
PSI_CRC_SIZE
-
PSI_HEADER_SIZE
);
}
static
inline
uint8_t
*
cat_alloc_descs
(
uint8_t
*
p_cat
)
{
uint16_t
i_desc_len
=
cat_get_desclength
(
p_cat
);
uint8_t
*
p_buf
=
malloc
(
i_desc_len
+
2
);
if
(
!
p_buf
)
return
NULL
;
memcpy
(
p_buf
+
2
,
p_cat
+
8
,
i_desc_len
);
descs_set_length
(
p_buf
,
i_desc_len
);
return
p_buf
;
}
static
inline
void
cat_free_descs
(
uint8_t
*
p_cat_descs
)
{
free
(
p_cat_descs
);
}
static
inline
bool
cat_validate
(
const
uint8_t
*
p_cat
)
{
uint16_t
i_section_size
=
psi_get_length
(
p_cat
)
+
PSI_HEADER_SIZE
-
PSI_CRC_SIZE
;
const
uint8_t
*
p_cat_n
;
if
(
!
psi_get_syntax
(
p_cat
)
||
psi_get_section
(
p_cat
)
||
psi_get_lastsection
(
p_cat
)
||
psi_get_tableid
(
p_cat
)
!=
CAT_TABLE_ID
)
return
false
;
if
(
!
psi_check_crc
(
p_cat
))
return
false
;
if
(
i_section_size
<
CAT_HEADER_SIZE
||
i_section_size
<
CAT_HEADER_SIZE
+
cat_get_desclength
(
p_cat
))
return
false
;
return
true
;
}
static
inline
bool
cat_table_validate
(
uint8_t
**
pp_sections
)
{
uint8_t
i_last_section
=
psi_table_get_lastsection
(
pp_sections
);
uint8_t
i
;
for
(
i
=
0
;
i
<=
i_last_section
;
i
++
)
{
uint8_t
*
p_section
=
psi_table_get_section
(
pp_sections
,
i
);
int
j
=
0
;
if
(
!
psi_check_crc
(
p_section
))
return
false
;
}
return
true
;
}
/*****************************************************************************
/*****************************************************************************
* Program Map Table
* Program Map Table
*****************************************************************************/
*****************************************************************************/
...
...
mpeg/psi_print.h
View file @
a6ed936b
...
@@ -31,6 +31,45 @@ extern "C"
...
@@ -31,6 +31,45 @@ extern "C"
{
{
#endif
#endif
/*****************************************************************************
* Conditional Access Table
*****************************************************************************/
static
inline
void
cat_table_print
(
uint8_t
**
pp_sections
,
f_print
pf_print
,
void
*
opaque
,
print_type_t
i_print_type
)
{
uint8_t
i_last_section
=
psi_table_get_lastsection
(
pp_sections
);
uint8_t
i
;
switch
(
i_print_type
)
{
case
PRINT_XML
:
pf_print
(
opaque
,
"<CAT version=
\"
%hhu
\"
current_next=
\"
%d
\"
>"
,
psi_table_get_version
(
pp_sections
),
!
psi_table_get_current
(
pp_sections
)
?
0
:
1
);
break
;
default:
pf_print
(
opaque
,
"new CAT version=%hhu%s"
,
psi_table_get_version
(
pp_sections
),
!
psi_table_get_current
(
pp_sections
)
?
" (next)"
:
""
);
}
for
(
i
=
0
;
i
<=
i_last_section
;
i
++
)
{
uint8_t
*
p_section
=
psi_table_get_section
(
pp_sections
,
i
);
uint8_t
*
p_descs
=
cat_alloc_descs
(
p_section
);
descs_print
(
p_descs
,
pf_print
,
opaque
,
NULL
,
NULL
,
i_print_type
);
cat_free_descs
(
p_descs
);
}
switch
(
i_print_type
)
{
case
PRINT_XML
:
pf_print
(
opaque
,
"</CAT>"
);
break
;
default:
pf_print
(
opaque
,
"end CAT"
);
}
}
/*****************************************************************************
/*****************************************************************************
* Program Map Table
* Program Map Table
*****************************************************************************/
*****************************************************************************/
...
...
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