sdt.h File Reference

Application interface for the SDT decoder and the SDT generator. More...

Go to the source code of this file.

Data Structures
struct	dvbpsi_sdt_service_s
	SDT service description structure. More...
struct	dvbpsi_sdt_s
	SDT structure. More...
Defines
#define	dvbpsi_NewSDT(p_sdt, i_ts_id, i_version, b_current_next, i_network_id)
	Allocate and initialize a new dvbpsi_sdt_t structure.
#define	dvbpsi_DeleteSDT(p_sdt)
	Clean and free a dvbpsi_sdt_t structure.
Typedefs
typedef struct dvbpsi_sdt_service_s	dvbpsi_sdt_service_t
	dvbpsi_sdt_service_t type definition.
typedef struct dvbpsi_sdt_s	dvbpsi_sdt_t
	dvbpsi_sdt_t type definition.
typedef void(*	dvbpsi_sdt_callback )(void *p_cb_data, dvbpsi_sdt_t *p_new_sdt)
	Callback type definition.
Functions
int	dvbpsi_AttachSDT (dvbpsi_decoder_t *p_psi_decoder, uint8_t i_table_id, uint16_t i_extension, dvbpsi_sdt_callback pf_callback, void *p_cb_data)
void	dvbpsi_DetachSDT (dvbpsi_demux_t *p_demux, uint8_t i_table_id, uint16_t i_extension)
	Destroy a SDT decoder.
void	dvbpsi_InitSDT (dvbpsi_sdt_t *p_sdt, uint16_t i_ts_id, uint8_t i_version, int b_current_next, uint16_t i_network_id)
	Initialize a user-allocated dvbpsi_sdt_t structure.
void	dvbpsi_EmptySDT (dvbpsi_sdt_t *p_sdt)
	Clean a dvbpsi_sdt_t structure.
dvbpsi_sdt_service_t *	dvbpsi_SDTAddService (dvbpsi_sdt_t *p_sdt, uint16_t i_service_id, int b_eit_schedule, int b_eit_present, uint8_t i_running_status, int b_free_ca)
	Add a service description at the end of the SDT.
dvbpsi_descriptor_t *	dvbpsi_SDTServiceAddDescriptor (dvbpsi_sdt_service_t *p_service, uint8_t i_tag, uint8_t i_length, uint8_t *p_data)
	Add a descriptor in the SDT service.
dvbpsi_psi_section_t *	dvbpsi_GenSDTSections (dvbpsi_sdt_t *p_sdt)

---

Detailed Description

Application interface for the SDT decoder and the SDT generator.

>

Author:

Johan Bilien <jobi@via.ecp.fr> Application interface for the SDT decoder and the SDT generator. New decoded SDT are sent by callback to the application. If a table wasn't active (b_current_next == 0) and the next is the same but active (b_current_next == 1) then the service description list is empty and should be caught from the previous structure.

---

Define Documentation

#define dvbpsi_DeleteSDT

(

p_sdt

)

Value:

do {                                                                    \
  dvbpsi_EmptySDT(p_sdt);                                               \
  free(p_sdt);                                                          \
} while(0);

Clean and free a dvbpsi_sdt_t structure.

Parameters:

p_sdt

pointer to the SDT structure

Returns:

nothing.

#define dvbpsi_NewSDT	(	p_sdt,
		i_ts_id,
		i_version,
		b_current_next,
		i_network_id		)

Value:

do {                                                                    \
  p_sdt = (dvbpsi_sdt_t*)malloc(sizeof(dvbpsi_sdt_t));                  \
  if(p_sdt != NULL)                                                     \
    dvbpsi_InitSDT(p_sdt, i_ts_id, i_version, b_current_next, i_network_id); \
} while(0);

Allocate and initialize a new dvbpsi_sdt_t structure.

Parameters:

	p_sdt	pointer to the SDT structure
	i_ts_id	transport stream ID
	i_version	SDT version
	b_current_next	current next indicator
	i_network_id	original network id

Returns:

nothing.

---

Function Documentation

void dvbpsi_DetachSDT	(	dvbpsi_demux_t *	p_demux,
		uint8_t	i_table_id,
		uint16_t	i_extension
	)

Destroy a SDT decoder.

Parameters:

	p_demux	Subtable demultiplexor to which the decoder is attached.
	i_table_id	Table ID, 0x42 or 0x46.
	i_extension	Table ID extension, here TS ID.

Returns:

nothing.

void dvbpsi_EmptySDT

(

dvbpsi_sdt_t *

p_sdt

)

Clean a dvbpsi_sdt_t structure.

Parameters:

p_sdt

pointer to the SDT structure

Returns:

nothing.

void dvbpsi_InitSDT	(	dvbpsi_sdt_t *	p_sdt,
		uint16_t	i_ts_id,
		uint8_t	i_version,
		int	b_current_next,
		uint16_t	i_network_id
	)

Initialize a user-allocated dvbpsi_sdt_t structure.

Parameters:

	p_sdt	pointer to the SDT structure
	i_ts_id	transport stream ID
	i_version	SDT version
	b_current_next	current next indicator
	i_network_id	original network id

Returns:

nothing.

dvbpsi_sdt_service_t * dvbpsi_SDTAddService	(	dvbpsi_sdt_t *	p_sdt,
		uint16_t	i_service_id,
		int	b_eit_schedule,
		int	b_eit_present,
		uint8_t	i_running_status,
		int	b_free_ca
	)

Add a service description at the end of the SDT.

Parameters:

	p_sdt	pointer to the SDT structure
	i_service_id	Service ID
	b_eit_schedule	EIT Schedule flag
	b_eit_present	EIT Present/Following flag
	i_running_status	Running status
	b_free_ca	Free CA flag

Returns:

a pointer to the added service description.

dvbpsi_descriptor_t * dvbpsi_SDTServiceAddDescriptor	(	dvbpsi_sdt_service_t *	p_service,
		uint8_t	i_tag,
		uint8_t	i_length,
		uint8_t *	p_data
	)

Add a descriptor in the SDT service.

Parameters:

	p_service	pointer to the service structure
	i_tag	descriptor's tag
	i_length	descriptor's length
	p_data	descriptor's data

Returns:

a pointer to the added descriptor.