Crate hdds_recording 

HDDS Recording Service

Record and replay DDS messages with support for:

• Native .hdds format (efficient, self-contained)
• MCAP export (industry standard, Foxglove compatible)

Quick Start

# Record all topics on domain 0
hdds-record --domain 0 --output capture.hdds

# Replay at 2x speed
hdds-replay --input capture.hdds --speed 2.0

# Convert to MCAP (if feature enabled)
hdds-record --domain 0 --output capture.mcap --format mcap

Format Comparison

Feature	.hdds	.mcap
Self-contained	[OK]	[OK]
Indexed seeking	[OK]	[OK]
Type metadata	[OK]	[OK]
Foxglove compatible	[X]	[OK]
ROS2 compatible	[X]	[OK]
Minimal deps	[OK]	[X]

Re-exports

pub use filter::TopicFilter;

pub use filter::TypeFilter;

pub use format::HddsFormat;

pub use format::Message;

pub use format::RecordingMetadata;

pub use player::PlaybackSpeed;

pub use player::Player;

pub use player::PlayerConfig;

pub use recorder::Recorder;

pub use recorder::RecorderConfig;

pub use rotation::RotationPolicy;

pub use rotation::RotationTrigger;

Modules

filter

Filtering for recording and replay.

format

Recording file formats.

player

DDS message replay/playback.

recorder

DDS message recorder.

rotation

File rotation policies for recording.