Manages the data streaming state related to a vive headset. More...

Inheritance diagram for vive_source:

Collaboration diagram for vive_source:

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Data Fields
struct xrt_frame_node	node

enum u_logging_level	log_level

struct xrt_frame_sink	sbs_sink
	Intermediate sink for SBS frames. More...

struct xrt_imu_sink	imu_sink
	Intermediate sink for IMU samples. More...

struct xrt_slam_sinks	in_sinks
	Pointers to intermediate sinks. More...

struct xrt_slam_sinks	out_sinks
	Pointers to downstream sinks. More...

bool	timestamps_have_been_zero_until_now
	First v4l2 frames are zeroed. More...

bool	waiting_for_first_nonempty_frame
	Whether the first good frame has been received. More...

struct u_deque_timepoint_ns	frame_timestamps

struct os_mutex	frame_timestamps_lock
	Queue of yet unused frame hw timestamps. More...

uint32_t	last_frame_ticks
	Lock for accessing frame_timestamps. More...

timepoint_ns	last_frame_ts_ns
	Last frame timestamp in device ticks. More...

time_duration_ns	hw2mono
	Last frame timestamp in device nanoseconds. More...

time_duration_ns	hw2v4l2
	Estimated offset from IMU to V4L2 clock. More...

Data Fields inherited from xrt_frame_node
struct xrt_frame_node *	next

void(*	break_apart )(struct xrt_frame_node *node)
	Called first in when the graph is being destroyed, remove any references frames and other objects and stop threads. More...

void(*	destroy )(struct xrt_frame_node *node)
	Do the actual freeing of the objects. More...

Detailed Description

Manages the data streaming state related to a vive headset.

Field Documentation

◆ frame_timestamps_lock

struct os_mutex vive_source::frame_timestamps_lock

Queue of yet unused frame hw timestamps.

Referenced by vive_source_try_convert_v4l2_timestamp().

◆ hw2mono

time_duration_ns vive_source::hw2mono

Last frame timestamp in device nanoseconds.

Estimated offset from IMU to monotonic clock

◆ hw2v4l2

time_duration_ns vive_source::hw2v4l2

Estimated offset from IMU to V4L2 clock.

◆ imu_sink

struct xrt_imu_sink vive_source::imu_sink

Intermediate sink for IMU samples.

◆ in_sinks

struct xrt_slam_sinks vive_source::in_sinks

Pointers to intermediate sinks.

◆ last_frame_ticks

uint32_t vive_source::last_frame_ticks

Lock for accessing frame_timestamps.

◆ last_frame_ts_ns

timepoint_ns vive_source::last_frame_ts_ns

Last frame timestamp in device ticks.

◆ out_sinks

struct xrt_slam_sinks vive_source::out_sinks

Pointers to downstream sinks.

◆ sbs_sink

struct xrt_frame_sink vive_source::sbs_sink

Intermediate sink for SBS frames.

Referenced by vive_source_create().

◆ timestamps_have_been_zero_until_now

bool vive_source::timestamps_have_been_zero_until_now

First v4l2 frames are zeroed.