demux.h File Reference

Subtable demutiplexor. More...

Go to the source code of this file.

Data Structures
struct	dvbpsi_demux_subdec_s
	Subtable decoder structure. More...
struct	dvbpsi_demux_s
	subtable demultiplexor structure More...
Typedefs
typedef void(*	dvbpsi_demux_new_cb_t )(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, void *p_cb_data)
	Callback used in case of a new subtable detected.
typedef void(*	dvbpsi_demux_gather_cb_t )(dvbpsi_t *p_dvbpsi, dvbpsi_decoder_t *p_decoder, dvbpsi_psi_section_t *p_section)
	Callback used for gathering psi sections on behalf of subtable decoders.
typedef void(*	dvbpsi_demux_detach_cb_t )(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)
	Callback used for detaching subtable decoder from demuxer.
typedef struct dvbpsi_demux_subdec_s	dvbpsi_demux_subdec_t
	dvbpsi_demux_subdec_t type definition.
typedef struct dvbpsi_demux_s	dvbpsi_demux_t
	dvbpsi_demux_t type definition.
Functions
bool	dvbpsi_AttachDemux (dvbpsi_t *p_dvbpsi, dvbpsi_demux_new_cb_t pf_new_cb, void *p_new_cb_data)
	Attaches a new demux structure on dvbpsi_t* handle.
void	dvbpsi_DetachDemux (dvbpsi_t *p_dvbpsi)
	Destroys a demux structure.
dvbpsi_demux_subdec_t *	dvbpsi_demuxGetSubDec (dvbpsi_demux_t *p_demux, uint8_t i_table_id, uint16_t i_extension)
	Looks for a subtable decoder, given the subtable ID.
void	dvbpsi_Demux (dvbpsi_t *p_dvbpsi, dvbpsi_psi_section_t *p_section)
	Sends the PSI sections to the right subtable decoder according to their table ID and extension.
dvbpsi_demux_subdec_t *	dvbpsi_NewDemuxSubDecoder (const uint8_t i_table_id, const uint16_t i_extension, dvbpsi_demux_detach_cb_t pf_detach, dvbpsi_demux_gather_cb_t pf_gather, dvbpsi_decoder_t *p_decoder)
	Allocates a new demux sub table decoder and initializes it.
void	dvbpsi_DeleteDemuxSubDecoder (dvbpsi_demux_subdec_t *p_subdec)
	Releases memory allocated with.
void	dvbpsi_AttachDemuxSubDecoder (dvbpsi_demux_t *p_demux, dvbpsi_demux_subdec_t *p_subdec)
	Attach a subtable decoder to the given demux handle.
void	dvbpsi_DetachDemuxSubDecoder (dvbpsi_demux_t *p_demux, dvbpsi_demux_subdec_t *p_subdec)
	Detach a subtable decoder from the given demux pointer.

---

Detailed Description

Subtable demutiplexor.

>

Author:

Johan Bilien <jobi@via.ecp.fr> Subtable demultiplexor structure

---

Typedef Documentation

void(* dvbpsi_demux_detach_cb_t)(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension)

Callback used for detaching subtable decoder from demuxer.

table extention to detach

void(* dvbpsi_demux_gather_cb_t)(dvbpsi_t *p_dvbpsi, void *p_cb_data, dvbpsi_psi_section_t *p_section)

Callback used for gathering psi sections on behalf of subtable decoders.

pointer to psi section

void(* dvbpsi_demux_new_cb_t)(dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, void *p_cb_data)

Callback used in case of a new subtable detected.

pointer to callback data

---

Function Documentation

bool dvbpsi_AttachDemux	(	dvbpsi_t *	p_dvbpsi,
		dvbpsi_demux_new_cb_t	pf_new_cb,
		void *	p_new_cb_data
	)

Attaches a new demux structure on dvbpsi_t* handle.

Parameters:

p_dvbpsi	pointer to dvbpsi_t handle
pf_new_cb	A callcack called when a new type of subtable is found.
p_new_cb_data	Data given to the previous callback.

Returns:

true on success, false on failure

void dvbpsi_AttachDemuxSubDecoder	(	dvbpsi_demux_t *	p_demux,
		dvbpsi_demux_subdec_t *	p_subdec
	)

Attach a subtable decoder to the given demux handle.

Parameters:

p_demux	pointer to dvbpsi_demux_t
p_subdec	pointer to dvbpsi_demux_subdec_t

Returns:

nothing

void dvbpsi_DeleteDemuxSubDecoder

(

dvbpsi_demux_subdec_t *

p_subdec

)

Releases memory allocated with.

See also:

dvbpsi_NewDemuxSubDecoder. It will also release p_cb_data pointer.

Parameters:

p_subdec

pointer to demux subtable decoder.

Returns:

nothing.

void dvbpsi_Demux	(	dvbpsi_t *	p_dvbpsi,
		dvbpsi_psi_section_t *	p_section
	)

Sends the PSI sections to the right subtable decoder according to their table ID and extension.

Parameters:

p_dvbpsi	PSI decoder handle.
p_section	PSI section.

dvbpsi_demux_subdec_t * dvbpsi_demuxGetSubDec	(	dvbpsi_demux_t *	p_demux,
		uint8_t	i_table_id,
		uint16_t	i_extension
	)

Looks for a subtable decoder, given the subtable ID.

Parameters:

p_demux	Pointer to the demux structure.
i_table_id	Table ID of the wanted subtable.
i_extension	Table ID extension of the wanted subtable.

Returns:

a pointer to the found subdecoder, or NULL.

void dvbpsi_DetachDemux

(

dvbpsi_t *

p_dvbpsi

)

Destroys a demux structure.

Parameters:

p_dvbpsi

The handle of the demux to be destroyed.

Returns:

nothing

void dvbpsi_DetachDemuxSubDecoder	(	dvbpsi_demux_t *	p_demux,
		dvbpsi_demux_subdec_t *	p_subdec
	)

Detach a subtable decoder from the given demux pointer.

Parameters:

p_demux	pointer to dvbpsi_demux_t
p_subdec	pointer to dvbpsi_demux_subdec_t

Returns:

nothing

dvbpsi_demux_subdec_t * dvbpsi_NewDemuxSubDecoder	(	const uint8_t	i_table_id,
		const uint16_t	i_extension,
		dvbpsi_demux_detach_cb_t	pf_detach,
		dvbpsi_demux_gather_cb_t	pf_gather,
		dvbpsi_decoder_t *	p_decoder
	)

Allocates a new demux sub table decoder and initializes it.

Parameters:

i_table_id	table id to create subtable decoder for
i_extension	table extension to create subtable decoder for
pf_detach	pointer to detach function for subtable decoder.
pf_gather	pointer to gather function for subtable decoder.
p_decoder	pointer to private decoder.

Returns:

pointer to demux subtable decoder.