pmt.h File Reference

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

Go to the source code of this file.

Data Structures
struct	dvbpsi_pmt_es_s
	PMT ES structure. More...
struct	dvbpsi_pmt_s
	PMT structure. More...
Defines
#define	dvbpsi_NewPMT(p_pmt, i_program_number,i_version, b_current_next, i_pcr_pid)
	Allocate and initialize a new dvbpsi_pmt_t structure.
#define	dvbpsi_DeletePMT(p_pmt)
	Clean and free a dvbpsi_pmt_t structure.
Typedefs
typedef struct dvbpsi_pmt_es_s	dvbpsi_pmt_es_t
	dvbpsi_pmt_es_t type definition.
typedef struct dvbpsi_pmt_s	dvbpsi_pmt_t
	dvbpsi_pmt_t type definition.
typedef void(*	dvbpsi_pmt_callback )(void *p_cb_data, dvbpsi_pmt_t *p_new_pmt)
	Callback type definition.
Functions
dvbpsi_handle	dvbpsi_AttachPMT (uint16_t i_program_number, dvbpsi_pmt_callback pf_callback, void *p_cb_data)
	Creation and initialization of a PMT decoder.
void	dvbpsi_DetachPMT (dvbpsi_handle h_dvbpsi)
	Destroy a PMT decoder.
void	dvbpsi_InitPMT (dvbpsi_pmt_t *p_pmt, uint16_t i_program_number, uint8_t i_version, int b_current_next, uint16_t i_pcr_pid)
	Initialize a user-allocated dvbpsi_pmt_t structure.
void	dvbpsi_EmptyPMT (dvbpsi_pmt_t *p_pmt)
	Clean a dvbpsi_pmt_t structure.
dvbpsi_descriptor_t *	dvbpsi_PMTAddDescriptor (dvbpsi_pmt_t *p_pmt, uint8_t i_tag, uint8_t i_length, uint8_t *p_data)
	Add a descriptor in the PMT.
dvbpsi_pmt_es_t *	dvbpsi_PMTAddES (dvbpsi_pmt_t *p_pmt, uint8_t i_type, uint16_t i_pid)
	Add an ES in the PMT.
dvbpsi_descriptor_t *	dvbpsi_PMTESAddDescriptor (dvbpsi_pmt_es_t *p_es, uint8_t i_tag, uint8_t i_length, uint8_t *p_data)
	Add a descriptor in the PMT ES.
dvbpsi_psi_section_t *	dvbpsi_GenPMTSections (dvbpsi_pmt_t *p_pmt)
	PMT generator.

---

Detailed Description

Application interface for the PMT decoder and the PMT generator.

>

Author:

Arnaud de Bossoreille de Ribou <bozo@via.ecp.fr> Application interface for the PMT decoder and the PMT generator. New decoded PMT tables 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 two lists are empty and should be caught from the previous structure.

---

Define Documentation

#define dvbpsi_DeletePMT

(

p_pmt

)

Value:

do {                                                                    \
  dvbpsi_EmptyPMT(p_pmt);                                               \
  free(p_pmt);                                                          \
} while(0);

Clean and free a dvbpsi_pmt_t structure.

Parameters:

p_pmt

pointer to the PMT structure

Returns:

nothing.

#define dvbpsi_NewPMT	(	p_pmt,
		i_program_number,
		i_version,
		b_current_next,
		i_pcr_pid		)

Value:

do {                                                                    \
  p_pmt = (dvbpsi_pmt_t*)malloc(sizeof(dvbpsi_pmt_t));                  \
  if(p_pmt != NULL)                                                     \
    dvbpsi_InitPMT(p_pmt, i_program_number, i_version, b_current_next,  \
                   i_pcr_pid);                                          \
} while(0);

Allocate and initialize a new dvbpsi_pmt_t structure.

Parameters:

	p_pmt	pointer to the PMT structure
	i_program_number	program number
	i_version	PMT version
	b_current_next	current next indicator
	i_pcr_pid	PCR_PID

Returns:

nothing.

---

Function Documentation

dvbpsi_handle dvbpsi_AttachPMT	(	uint16_t	i_program_number,
		dvbpsi_pmt_callback	pf_callback,
		void *	p_cb_data
	)

Creation and initialization of a PMT decoder.

Parameters:

	i_program_number	program number
	pf_callback	function to call back on new PMT
	p_cb_data	private data given in argument to the callback

Returns:

a pointer to the decoder for future calls.

void dvbpsi_DetachPMT

(

dvbpsi_handle

h_dvbpsi

)

Destroy a PMT decoder.

Parameters:

h_dvbpsi

handle to the decoder

Returns:

nothing.

The handle isn't valid any more.

void dvbpsi_EmptyPMT

(

dvbpsi_pmt_t *

p_pmt

)

Clean a dvbpsi_pmt_t structure.

Parameters:

p_pmt

pointer to the PMT structure

Returns:

nothing.

dvbpsi_psi_section_t * dvbpsi_GenPMTSections

(

dvbpsi_pmt_t *

p_pmt

)

PMT generator.

Parameters:

p_pmt

PMT structure

Returns:

a pointer to the list of generated PSI sections.

Generate PMT sections based on the dvbpsi_pmt_t structure.

void dvbpsi_InitPMT	(	dvbpsi_pmt_t *	p_pmt,
		uint16_t	i_program_number,
		uint8_t	i_version,
		int	b_current_next,
		uint16_t	i_pcr_pid
	)

Initialize a user-allocated dvbpsi_pmt_t structure.

Parameters:

	p_pmt	pointer to the PMT structure
	i_program_number	program number
	i_version	PMT version
	b_current_next	current next indicator
	i_pcr_pid	PCR_PID

Returns:

nothing.

dvbpsi_descriptor_t * dvbpsi_PMTAddDescriptor	(	dvbpsi_pmt_t *	p_pmt,
		uint8_t	i_tag,
		uint8_t	i_length,
		uint8_t *	p_data
	)

Add a descriptor in the PMT.

Parameters:

	p_pmt	pointer to the PMT structure
	i_tag	descriptor's tag
	i_length	descriptor's length
	p_data	descriptor's data

Returns:

a pointer to the added descriptor.

dvbpsi_pmt_es_t * dvbpsi_PMTAddES	(	dvbpsi_pmt_t *	p_pmt,
		uint8_t	i_type,
		uint16_t	i_pid
	)

Add an ES in the PMT.

Parameters:

	p_pmt	pointer to the PMT structure
	i_type	type of ES
	i_pid	PID of the ES

Returns:

a pointer to the added ES.

dvbpsi_descriptor_t * dvbpsi_PMTESAddDescriptor	(	dvbpsi_pmt_es_t *	p_es,
		uint8_t	i_tag,
		uint8_t	i_length,
		uint8_t *	p_data
	)

Add a descriptor in the PMT ES.

Parameters:

	p_es	pointer to the ES structure
	i_tag	descriptor's tag
	i_length	descriptor's length
	p_data	descriptor's data

Returns:

a pointer to the added descriptor.