bat.h File Reference

Application interface for the BAT decoder. More...

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Data Structures

struct  dvbpsi_bat_ts_s
 BAT transport stream description structure. More...
struct  dvbpsi_bat_s
 BAT structure. More...

Typedefs

typedef struct dvbpsi_bat_ts_s dvbpsi_bat_ts_t
 dvbpsi_bat_ts_t type definition.
typedef struct dvbpsi_bat_s dvbpsi_bat_t
 dvbpsi_bat_t type definition.
typedef void(* dvbpsi_bat_callback )(void *p_cb_data, dvbpsi_bat_t *p_new_bat)
 Callback type definition.

Functions

bool dvbpsi_bat_attach (dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, dvbpsi_bat_callback pf_callback, void *p_cb_data)
 Creation and initialization of a BAT decoder. It will be attached to p_dvbpsi.
void dvbpsi_bat_detach (dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
 Destroy a BAT decoder.
void dvbpsi_bat_init (dvbpsi_bat_t *p_bat, uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next)
 Initialize a user-allocated dvbpsi_bat_t structure.
dvbpsi_bat_tdvbpsi_bat_new (uint8_t i_table_id, uint16_t i_extension, uint8_t i_version, bool b_current_next)
 Allocate and initialize a new dvbpsi_bat_t structure.
void dvbpsi_bat_empty (dvbpsi_bat_t *p_bat)
 Clean a dvbpsi_bat_t structure.
void dvbpsi_bat_delete (dvbpsi_bat_t *p_bat)
 Clean and free a dvbpsi_bat_t structure.
dvbpsi_descriptor_tdvbpsi_bat_bouquet_descriptor_add (dvbpsi_bat_t *p_bat, uint8_t i_tag, uint8_t i_length, uint8_t *p_data)
 Add a descriptor in the BAT.
dvbpsi_bat_ts_tdvbpsi_bat_ts_add (dvbpsi_bat_t *p_bat, uint16_t i_ts_id, uint16_t i_orig_network_id)
 Add a TS description at the end of the BAT.
dvbpsi_descriptor_tdvbpsi_bat_ts_descriptor_add (dvbpsi_bat_ts_t *p_bat, uint8_t i_tag, uint8_t i_length, uint8_t *p_data)
 Add a descriptor in the BAT TS descriptors.
dvbpsi_psi_section_tdvbpsi_bat_sections_generate (dvbpsi_t *p_dvbpsi, dvbpsi_bat_t *p_bat)
 BAT generator.

Detailed Description

Application interface for the BAT decoder.

Author:
Zhu zhenglu <zhuzlu@gmail.com> Application interface for the BAT decoder. New decoded BAT are sent by callback to the application. If a table wasn't active (b_current_next == false) and the next is the same but active (b_current_next == true) then the service description list is empty and should be caught from the previous structure. This is a simulation to sdt.h

Function Documentation

bool dvbpsi_bat_attach ( dvbpsi_t p_dvbpsi,
uint8_t  i_table_id,
uint16_t  i_extension,
dvbpsi_bat_callback  pf_callback,
void *  p_cb_data 
)

Creation and initialization of a BAT decoder. It will be attached to p_dvbpsi.

Parameters:
p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached.
i_table_id Table ID, 0x4a.
i_extension Table ID extension, here bouquet ID.
pf_callback function to call back on new BAT.
p_cb_data private data given in argument to the callback.
Returns:
true on success, false on failure
dvbpsi_descriptor_t * dvbpsi_bat_bouquet_descriptor_add ( dvbpsi_bat_t p_bat,
uint8_t  i_tag,
uint8_t  i_length,
uint8_t *  p_data 
)

Add a descriptor in the BAT.

Parameters:
p_bat pointer to the BAT structure
i_tag descriptor's tag
i_length descriptor's length
p_data descriptor's data
Returns:
a pointer to the added descriptor.
dvbpsi_bat_delete ( dvbpsi_bat_t p_bat  ) 

Clean and free a dvbpsi_bat_t structure.

Parameters:
p_bat pointer to the BAT structure
Returns:
nothing.
void dvbpsi_bat_detach ( dvbpsi_t p_dvbpsi,
uint8_t  i_table_id,
uint16_t  i_extension 
)

Destroy a BAT decoder.

Parameters:
p_dvbpsi dvbpsi handle to Subtable demultiplexor to which the decoder is attached.
i_table_id Table ID, 0x4a.
i_extension Table ID extension, here bouquet ID.
Returns:
nothing.
void dvbpsi_bat_empty ( dvbpsi_bat_t p_bat  ) 

Clean a dvbpsi_bat_t structure.

Parameters:
p_bat pointer to the BAT structure
Returns:
nothing.
void dvbpsi_bat_init ( dvbpsi_bat_t p_bat,
uint8_t  i_table_id,
uint16_t  i_extension,
uint8_t  i_version,
bool  b_current_next 
)

Initialize a user-allocated dvbpsi_bat_t structure.

Parameters:
p_bat pointer to the BAT structure
i_table_id Table ID, 0x4a.
i_extension Table ID extension, here bouquet ID.
i_version BAT version
b_current_next current next indicator
Returns:
nothing.
dvbpsi_bat_t * dvbpsi_bat_new ( uint8_t  i_table_id,
uint16_t  i_extension,
uint8_t  i_version,
bool  b_current_next 
)

Allocate and initialize a new dvbpsi_bat_t structure.

Parameters:
i_table_id Table ID, 0x4a.
i_extension Table ID extension, here bouquet ID.
i_version BAT version
b_current_next current next indicator
Returns:
p_bat pointer to the BAT structure
dvbpsi_psi_section_t * dvbpsi_bat_sections_generate ( dvbpsi_t p_dvbpsi,
dvbpsi_bat_t p_bat 
)

BAT generator.

Parameters:
p_dvbpsi handle to dvbpsi with attached decoder
p_bat BAT structure
Returns:
a pointer to the list of generated PSI sections.

Generate BAT sections based on the dvbpsi_bat_t structure.

dvbpsi_descriptor_t * dvbpsi_bat_ts_add ( dvbpsi_bat_t p_bat,
uint16_t  i_ts_id,
uint16_t  i_orig_network_id 
)

Add a TS description at the end of the BAT.

Parameters:
p_bat pointer to the BAT structure
i_ts_id descriptor's transport stream id
i_orig_network_id descriptor's original network id
Returns:
a pointer to the added descriptor.
dvbpsi_descriptor_t * dvbpsi_bat_ts_descriptor_add ( dvbpsi_bat_ts_t p_bat,
uint8_t  i_tag,
uint8_t  i_length,
uint8_t *  p_data 
)

Add a descriptor in the BAT TS descriptors.

Parameters:
p_bat pointer to the BAT structure
i_tag descriptor number
i_length length of descriptor in bytes
p_data pointer to descriptor data
Returns:
a pointer to the added descriptor.

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