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videolan
libdvbpsi
Commits
11fbf5fa
Commit
11fbf5fa
authored
Nov 26, 2015
by
Jean-Paul Saman
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Plain Diff
ATSC VCT: implement as chained decoder
parent
9c8a0728
Changes
1
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Showing
1 changed file
with
40 additions
and
42 deletions
+40
-42
src/tables/atsc_vct.c
src/tables/atsc_vct.c
+40
-42
No files found.
src/tables/atsc_vct.c
View file @
11fbf5fa
...
...
@@ -39,7 +39,7 @@ Decode PSIP Virtual Channel Table.
#include "../dvbpsi_private.h"
#include "../psi.h"
#include "../descriptor.h"
#include "../
demux
.h"
#include "../
chain
.h"
#include "atsc_vct.h"
typedef
struct
dvbpsi_atsc_vct_decoder_s
...
...
@@ -82,10 +82,10 @@ static dvbpsi_descriptor_t *dvbpsi_atsc_VCTChannelAddDescriptor(
uint8_t
*
p_data
);
static
void
dvbpsi_atsc_GatherVCTSections
(
dvbpsi_t
*
p_dvbpsi
,
dvbpsi_decoder_t
*
p_decoder
,
dvbpsi_psi_section_t
*
p_section
);
dvbpsi_psi_section_t
*
p_section
);
static
void
dvbpsi_atsc_DecodeVCTSections
(
dvbpsi_atsc_vct_t
*
p_vct
,
dvbpsi_psi_section_t
*
p_section
);
dvbpsi_psi_section_t
*
p_section
);
/*****************************************************************************
* dvbpsi_atsc_AttachVCT
...
...
@@ -96,11 +96,9 @@ bool dvbpsi_atsc_AttachVCT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
dvbpsi_atsc_vct_callback
pf_vct_callback
,
void
*
p_cb_data
)
{
assert
(
p_dvbpsi
);
assert
(
p_dvbpsi
->
p_decoder
);
dvbpsi_demux_t
*
p_demux
=
(
dvbpsi_demux_t
*
)
p_dvbpsi
->
p_decoder
;
if
(
dvbpsi_demuxGetSubDec
(
p_demux
,
i_table_id
,
i_extension
))
dvbpsi_decoder_t
*
p_dec
=
dvbpsi_decoder_chain_get
(
p_dvbpsi
,
i_table_id
,
i_extension
);
if
(
p_dec
!=
NULL
)
{
dvbpsi_error
(
p_dvbpsi
,
"ATSC VCT decoder"
,
"Already a decoder for (table_id == 0x%02x,"
...
...
@@ -110,29 +108,26 @@ bool dvbpsi_atsc_AttachVCT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
}
dvbpsi_atsc_vct_decoder_t
*
p_vct_decoder
;
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
dvbpsi_decoder_new
(
NULL
,
0
,
true
,
sizeof
(
dvbpsi_atsc_vct_decoder_t
));
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
dvbpsi_decoder_new
(
dvbpsi_atsc_GatherVCTSections
,
4096
,
true
,
sizeof
(
dvbpsi_atsc_vct_decoder_t
));
if
(
p_vct_decoder
==
NULL
)
return
false
;
/* subtable decoder configuration */
dvbpsi_demux_subdec_t
*
p_subdec
;
p_subdec
=
dvbpsi_NewDemuxSubDecoder
(
i_table_id
,
i_extension
,
dvbpsi_atsc_DetachVCT
,
dvbpsi_atsc_GatherVCTSections
,
DVBPSI_DECODER
(
p_vct_decoder
));
if
(
p_subdec
==
NULL
)
{
dvbpsi_decoder_delete
(
DVBPSI_DECODER
(
p_vct_decoder
));
return
false
;
}
/* Attach the subtable decoder to the demux */
dvbpsi_AttachDemuxSubDecoder
(
p_demux
,
p_subdec
);
/* VCT decoder information */
p_vct_decoder
->
pf_vct_callback
=
pf_vct_callback
;
p_vct_decoder
->
p_cb_data
=
p_cb_data
;
p_vct_decoder
->
p_building_vct
=
NULL
;
p_vct_decoder
->
i_table_id
=
i_table_id
;
p_vct_decoder
->
i_extension
=
i_extension
;
/* add vct decoder to decoder chain */
if
(
!
dvbpsi_decoder_chain_add
(
p_dvbpsi
,
DVBPSI_DECODER
(
p_vct_decoder
)))
{
dvbpsi_decoder_delete
(
DVBPSI_DECODER
(
p_vct_decoder
));
return
false
;
}
return
true
;
}
...
...
@@ -144,13 +139,9 @@ bool dvbpsi_atsc_AttachVCT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
void
dvbpsi_atsc_DetachVCT
(
dvbpsi_t
*
p_dvbpsi
,
uint8_t
i_table_id
,
uint16_t
i_extension
)
{
assert
(
p_dvbpsi
);
assert
(
p_dvbpsi
->
p_decoder
);
dvbpsi_demux_t
*
p_demux
=
(
dvbpsi_demux_t
*
)
p_dvbpsi
->
p_decoder
;
dvbpsi_demux_subdec_t
*
p_subdec
;
p_subdec
=
dvbpsi_demuxGetSubDec
(
p_demux
,
i_table_id
,
i_extension
);
if
(
p_subdec
==
NULL
)
dvbpsi_decoder_t
*
p_dec
=
dvbpsi_decoder_chain_get
(
p_dvbpsi
,
i_table_id
,
i_extension
);
if
(
p_dec
==
NULL
)
{
dvbpsi_error
(
p_dvbpsi
,
"ATSC VCT Decoder"
,
"No such VCT decoder (table_id == 0x%02x,"
...
...
@@ -159,16 +150,22 @@ void dvbpsi_atsc_DetachVCT(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_ex
return
;
}
dvbpsi_atsc_vct_decoder_t
*
p_vct_decoder
;
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
p_subdec
->
p_decoder
;
if
(
!
p_vct_decoder
)
/* Remove table decoder from decoder chain */
if
(
!
dvbpsi_decoder_chain_remove
(
p_dvbpsi
,
p_dec
))
{
dvbpsi_error
(
p_dvbpsi
,
"ATSC VCT Decoder"
,
"Failed to remove"
"extension == 0x%02x)"
,
i_table_id
,
i_extension
);
return
;
}
dvbpsi_atsc_vct_decoder_t
*
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
p_dec
;
if
(
p_vct_decoder
->
p_building_vct
)
dvbpsi_atsc_DeleteVCT
(
p_vct_decoder
->
p_building_vct
);
p_vct_decoder
->
p_building_vct
=
NULL
;
dvbpsi_DetachDemuxSubDecoder
(
p_demux
,
p_subdec
);
dvbpsi_DeleteDemuxSubDecoder
(
p_subdec
);
dvbpsi_decoder_delete
(
p_dec
);
p_dec
=
NULL
;
}
/*****************************************************************************
...
...
@@ -442,12 +439,9 @@ static bool dvbpsi_AddSectionVCT(dvbpsi_t *p_dvbpsi, dvbpsi_atsc_vct_decoder_t *
*****************************************************************************
* Callback for the subtable demultiplexor.
*****************************************************************************/
static
void
dvbpsi_atsc_GatherVCTSections
(
dvbpsi_t
*
p_dvbpsi
,
dvbpsi_decoder_t
*
p_decoder
,
dvbpsi_psi_section_t
*
p_section
)
static
void
dvbpsi_atsc_GatherVCTSections
(
dvbpsi_t
*
p_dvbpsi
,
dvbpsi_psi_section_t
*
p_section
)
{
assert
(
p_dvbpsi
);
assert
(
p_dvbpsi
->
p_decoder
);
const
uint8_t
i_table_id
=
(
p_section
->
i_table_id
==
0xC8
||
p_section
->
i_table_id
==
0xC9
)
?
...
...
@@ -460,15 +454,19 @@ static void dvbpsi_atsc_GatherVCTSections(dvbpsi_t *p_dvbpsi,
}
/* */
dvbpsi_demux_t
*
p_demux
=
(
dvbpsi_demux_t
*
)
p_dvbpsi
->
p_decoder
;
dvbpsi_atsc_vct_decoder_t
*
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
p_decoder
;
dvbpsi_decoder_t
*
p_dec
=
dvbpsi_decoder_chain_get
(
p_dvbpsi
,
i_table_id
,
p_section
->
i_extension
);
if
(
!
p_dec
)
{
dvbpsi_DeletePSISections
(
p_section
);
return
;
}
/* TS discontinuity check */
if
(
p_demux
->
b_discontinuity
)
dvbpsi_atsc_vct_decoder_t
*
p_vct_decoder
=
(
dvbpsi_atsc_vct_decoder_t
*
)
p_dec
;
if
(
p_vct_decoder
->
b_discontinuity
)
{
dvbpsi_ReInitVCT
(
p_vct_decoder
,
true
);
p_vct_decoder
->
b_discontinuity
=
false
;
p_demux
->
b_discontinuity
=
false
;
}
else
{
...
...
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