psi.h File Reference

Common PSI tools. More...

Go to the source code of this file.

Data Structures
struct	dvbpsi_psi_section_s
	PSI section structure. More...

Functions
dvbpsi_psi_section_t *	dvbpsi_NewPSISection (int i_max_size)
	Creation of a new dvbpsi_psi_section_t structure. More...
void	dvbpsi_DeletePSISections (dvbpsi_psi_section_t *p_section)
	Destruction of a dvbpsi_psi_section_t structure. More...
bool	dvbpsi_CheckPSISection (dvbpsi_t *p_dvbpsi, dvbpsi_psi_section_t *p_section, const uint8_t table_id, const char *psz_table_name)
	Check if PSI section has the expected table_id. Call this function only for PSI sections that have a CRC32 (. More...
bool	dvbpsi_ValidPSISection (dvbpsi_psi_section_t *p_section)
	Validity check of a PSI section, make sure to call this function on tables that have a CRC32 (. More...
void	dvbpsi_BuildPSISection (dvbpsi_t *p_dvbpsi, dvbpsi_psi_section_t *p_section)
void	dvbpsi_CalculateCRC32 (dvbpsi_psi_section_t *p_section)
	Calculate the CRC32 field accourding to ISO/IEC 13818-1, ITU-T Rec H.222.0 or ETSI EN 300 468 v1.13.1. More...

Detailed Description

Common PSI tools.

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Author

Arnaud de Bossoreille de Ribou bozo@.nosp@m.via..nosp@m.ecp.f.nosp@m.r

PSI section structure and its Manipulation tools.

Function Documentation

dvbpsi_CalculateCRC32()

void dvbpsi_CalculateCRC32

(

dvbpsi_psi_section_t *

p_section

)

Calculate the CRC32 field accourding to ISO/IEC 13818-1, ITU-T Rec H.222.0 or ETSI EN 300 468 v1.13.1.

Parameters

p_section

pointer to PSI section, make sure p_payload_end does not include the CRC32 field.

Returns

nothing.

dvbpsi_CheckPSISection()

bool dvbpsi_CheckPSISection	(	dvbpsi_t *	p_dvbpsi,
		dvbpsi_psi_section_t *	p_section,
		const uint8_t	table_id,
		const char *	psz_table_name
	)

Check if PSI section has the expected table_id. Call this function only for PSI sections that have a CRC32 (.

See also

dvbpsi_has_CRC32() function)

Parameters

p_dvbpsi	pointer to dvbpsi library handle
p_section	pointer to the PSI section structure
table_id	expected table id
psz_table_name	table name to use when reporting errors.

Returns

boolean value (false if the section did not pass the tests).

dvbpsi_DeletePSISections()

void dvbpsi_DeletePSISections

(

dvbpsi_psi_section_t *

p_section

)

Destruction of a dvbpsi_psi_section_t structure.

Parameters

p_section

pointer to the first PSI section structure

Returns

nothing.

dvbpsi_NewPSISection()

dvbpsi_psi_section_t * dvbpsi_NewPSISection

(

int

i_max_size

)

Creation of a new dvbpsi_psi_section_t structure.

Parameters

i_max_size

max size in bytes of the section

Returns

a pointer to the new PSI section structure.

dvbpsi_ValidPSISection()

bool dvbpsi_ValidPSISection

(

dvbpsi_psi_section_t *

p_section

)

Validity check of a PSI section, make sure to call this function on tables that have a CRC32 (.

See also

dvbpsi_has_CRC32() function)

Parameters

p_section

pointer to the PSI section structure

Returns

boolean value (false if the section is not valid).

Check the CRC_32 if the section has b_syntax_indicator set.