Struct dp_header_t¶

Frame metadata header carried in every ZMQ message. More...

#include <stream.h>

Public Attributes¶

Type	Name
double	center_freq
uint32_t	flags
uint32_t	magic
uint64_t	num_samples
uint32_t	protocol
uint64_t	reserved
double	sample_rate
uint32_t	sample_type
uint64_t	sequence
uint32_t	stream_id
uint64_t	timestamp_ns
uint32_t	version

Detailed Description¶

The first 4 bytes of the wire header are always the magic value 0x53494753 ("SIGS"), which receivers can use for basic validation. Future-proofed for DIFI / VITA 49 with protocol and stream_id fields.

Public Attributes Documentation¶

variable center_freq¶

double dp_header_t::center_freq;

Centre frequency in Hz.

variable flags¶

uint32_t dp_header_t::flags;

Reserved flags — set to 0.

variable magic¶

uint32_t dp_header_t::magic;

Magic number: 0x53494753 "SIGS".

variable num_samples¶

uint64_t dp_header_t::num_samples;

Number of complex samples in this message.

variable protocol¶

uint32_t dp_header_t::protocol;

dp_protocol_t (0 = SIGS, 1 = DIFI).

variable reserved¶

uint64_t dp_header_t::reserved[4];

Reserved — set to zero, do not interpret.

variable sample_rate¶

double dp_header_t::sample_rate;

Sample rate in Hz.

variable sample_type¶

uint32_t dp_header_t::sample_type;

Wire sample type (dp_sample_type_t).

variable sequence¶

uint64_t dp_header_t::sequence;

Monotonically increasing per-sender count.

variable stream_id¶

uint32_t dp_header_t::stream_id;

DIFI stream ID; 0 for SIGS.

variable timestamp_ns¶

uint64_t dp_header_t::timestamp_ns;

UNIX timestamp in nanoseconds (CLOCK_REALTIME).

variable version¶

uint32_t dp_header_t::version;

Protocol version (currently 1).

The documentation for this class was generated from the following file native/inc/stream/stream.h