CIP_HDR1 structure (avcstrm.h)
The CIP_HDR1 structure describes the generic data structure of the two quadlet CIP headers (first quadlet of the pair).
Syntax
typedef struct _CIP_HDR1 {
ULONG DBC : 8;
ULONG Rsv00 : 2;
ULONG SPH : 1;
ULONG QPC : 3;
ULONG FN : 2;
ULONG DBS : 8;
ULONG SID : 6;
ULONG Bit00 : 2;
} CIP_HDR1, *PCIP_HDR1;
Members
DBC
Data block counter. This is not used by subunit driver. It must be set to 0.
Rsv00
Reserved bits. Do not use this. It must be 0:0.
SPH
Specifies a source packet header. A value of 1 indicates the presence of a source packet header. A value of 0 indicates no source packet header.
QPC
Quadlet padding count (0..7 quadlets).
FN
Specifies the fractional number.
DBS
Specifies the data block size in quadlets.
SID
Specifies the source node ID (ID of transmitter). Not used by the subunit driver. Must be set to 0.
Bit00
Must be set to 0:0.
Requirements
| Requirement | Value |
|---|---|
| Header | avcstrm.h (include Avcstrm.h) |