dsm_si.c File Reference

DSM-CC SI support. More...

#include <string.h>
#include "stb_os.h"
#include "stb_filter.h"
#include "dsm_control.h"
#include "dm_debug.h"
#include "dsm_si.h"

Classes
struct	s_tablerequest
struct	s_DsiInstance

Macros
#define	PAT_PID   0
#define	PAT_TID   0
#define	PMT_TID   2
#define	TIMEOUT_PAT   700
#define	TIMEOUT_PMT   1000
#define	TIMEOUT_DEFAULT   0x7FFF
#define	DSI_RQST_MAGIC   0xBA000000
#define	dsmctrl   dsi->ctrl

Typedefs
typedef struct s_tablerequest	S_TableRequest
typedef struct s_DsiInstance	S_DsiInstance

Functions
U32BIT	TimeoutPeriod (U8BIT tid)
S_TableRequest *	FindTableRqst (H_DsiInstance dsi, U16BIT xid, U8BIT tid)
H_DsiInstance	DSI_CreateInstance (H_DsmControl ctrl, F_FILTER_CALLBACK cbfunc, S_DsmccConfig *config)
	Create instance of DSI. More...
void	DSI_DestroyInstance (H_DsiInstance dsi)
	Destroy instance created by SIQ_CreateInstance. More...
BOOLEAN	DSI_Start (H_DsiInstance dsi, U16BIT transId, DMXREF dmxref)
	Start getting SI data from Demux. More...
void	DSI_Stop (H_DsiInstance dsi)
	Stop getting SI data from Demux. More...
U32BIT	DSI_RequestTable (H_DsiInstance dsi, U16BIT pid, U16BIT xid, U8BIT tid)
	Request Table data. It supplies Table soon after the call to this function, and then, whenever the Table version changes. This state continues until DSI_CancelTable is called. More...
void	DSI_CancelTable (H_DsiInstance dsi, U32BIT rid)
	Cancel request for table data made by DSI_RequestTable() More...
U32BIT	DSI_CheckRequests (H_DsiInstance dsi, U32BIT now)
	Check outstanding PMT (and PAT) requests to see whether any need to be refreshed. More...
BOOLEAN	DSI_RequireTable (H_DsiInstance dsi, U8BIT *hdr, U16BIT *pXid, U8BIT *pVer)
	Check whether SI table section data is required. More...

Detailed Description

DSM-CC SI support.

Date

24 April 2014

Author

Adam Sturtridge

Function Documentation

void DSI_CancelTable	(	H_DsiInstance	dsi,
		U32BIT	rid
	)

Cancel request for table data made by DSI_RequestTable()

Parameters

dsi	DSI instance handle
rid	Request Id returned by DSI_RequestTable()

Returns

void

U32BIT DSI_CheckRequests	(	H_DsiInstance	dsi,
		U32BIT	now
	)

Check outstanding PMT (and PAT) requests to see whether any need to be refreshed.

Parameters

dsi	DSI instance handle

Returns

U32BIT time when need to call this function again

H_DsiInstance DSI_CreateInstance	(	H_DsmControl	ctrl,
		F_FILTER_CALLBACK	cbfunc,
		S_DsmccConfig *	config
	)

Create instance of DSI.

Parameters

cbfunc	Function to process SI section data
config	Configuration of DSM-CC

Returns

DSI Instance handle

void DSI_DestroyInstance

(

H_DsiInstance

dsi

)

Destroy instance created by SIQ_CreateInstance.

Parameters

H_DsiInstance

dsi DSI instance handle.

Returns

U32BIT DSI_RequestTable	(	H_DsiInstance	dsi,
		U16BIT	pid,
		U16BIT	xid,
		U8BIT	tid
	)

Request Table data. It supplies Table soon after the call to this function, and then, whenever the Table version changes. This state continues until DSI_CancelTable is called.

Parameters

dsi	DSI instance handle
pid	PID for this table
xid	Table extension ID
tid	Table ID (e.g. PMT is 0x02)

Returns

zero is failure, non-zero is success

BOOLEAN DSI_RequireTable	(	H_DsiInstance	dsi,
		U8BIT *	hdr,
		U16BIT *	pXid,
		U8BIT *	pVer
	)

Check whether SI table section data is required.

Parameters

dsi	DSI instance handle
data	pointer to section data (starting at table Id byte
pXid	pointer to return table extension
pVer	pointer to return table version

Returns

BOOLEAN - TRUE if required, otherwise FALSE

BOOLEAN DSI_Start	(	H_DsiInstance	dsi,
		U16BIT	transId,
		DMXREF	dmxref
	)

Start getting SI data from Demux.

Parameters

dsi	DSI instance handle.
transId	Transport stream ID
dmxref	Demux reference handle

Returns

void DSI_Stop

(

H_DsiInstance

dsi

)

Stop getting SI data from Demux.

Parameters

H_DsiInstance

dsi DSI instance handle.

Returns