Syntalos

This release adds the following features:

• datactl: Add PULL_DOWN and ANALOG LineMode flags for LineReading
• miniscope: Port to new libminiscope API
• audiosource: Allow selecting an arbitrary file for playback instead of sound generation
• plot-timeseries: Add oscilloscope-style sweep mode for the time axis
• plot-timeseries: Carry held line levels across the sweep wrap
• videorecorder, zarrwriter: Report item counts as run statistics
• devel.datasource: Add frame size, channel count and camera-like frames
• devel.datasource: Add noise to the generated signals, allow more channels
• devel.datasource: Add option to generate rows at very high speeds
• example-mlink: Implement frame passthrough
• mlink: Add a way for modules to access their cache dir
• Gather & expose all instrumentation data we have as JSON and HTML reports
• Let modules contribute to run statistics, measure data age in flow meter
• Port to iceoryx2 0.10.0
• Give a dedicated exit code if we try to launch Syntalos twice
• engine: Keep the buffer monitor's peaks for the run statistics
• Add a benchmark tool to test which loads a system can sustain
• sybench: Add a GUI with live progress, cancellation and report saving
• Add option to emit sound cues about the experiment run state
• Use thread distribution limits on events-dedicated modules
• Add a D-Bus control interface
• ui: Improve global config dialog UI

This release fixes the following bugs:

• Fix build with Eigen 3.4.1
• videorecorder: Do not warn about inexact colors for lossless grayscale in YUV
• spikeglx: Ensure suggested stream dataset names won't collide by accident
• datasource: Fix crash when a scene is deleted in STOP while main thread is still composing
• plot-timeseries: Avoid port ID collisions
• mlink: Allow remove and re-registration of same-ID ports
• engine: Join event threads in module stop order as well
• Ensure we retain permissions when saving/creating project files
• Don't remember projects in temp locations in history
• Remember the last project dir only for interactively opened projects
• Raise default fd limits

This release includes the following changes:

• Avoid more string conversions on the caller side in the module API
• ci: Install newer Rust toolchain when on Debian Stable
• Die in style on SIGINT and SIGTERM
• engine: Release unused memory after a run

With contributions from:

Matthias Klumpp

This release adds the following features:

• spikeglx: Add new module to interface with a SpikeGLX instance on the network
• spikeglx: Publish digital channel groups as line events
• camera-arv: Build this module with -O3
• videorecorder: When deferred-encoding, store the intermediate as FFVHuff
• videorecorder: Preserver FFV1 16 bits pixel format in recordings
• datactl: Add SignalBlockI16 signed 16-bit signal block type
• projectfile: Ensure deterministic module load order & robust section IDs
• Make project files fully deterministic
• Pass the full RunInfo struct to module prepare() and expose it over MLink
• Write a persistent logfile and add a viewing diagnostic tool for logs
• videorecorder: Write a logfile for the encodehelper as well
• Add quick-open option for recent projects
• Measure project disk space consumption and warn early if we might run out of space
• Refine memory pressure readings by looking at PSI, refactor resource monitoring
• engine: Monitor resources slowly, unless there is an issue, then look more often
• ui: Add new widget to show more complex run notes in a better layout
• python: Add set_status_message function

This release fixes the following bugs:

• open-ephys-acq: Capture start offset slightly closer to the board run command
• open-ephys-acq: Never unload the liboni library once it was loaded
• open-ephys-acq: Apply our driver-pinning earlier
• plot-timeseries: Ensure graphs of edge-triggered sources remain always visible
• canvas: Survive recreation of the OpenGL context
• camera-arv: Recycle the decoder's output buffer between frames
• camera-arv: Copy Mono8/Mono16 frames instead of unpacking them
• camera-arv: Never index a partially described enumeration
• camera-arv: Actually mark the module as running while its worker thread is up
• camera-arv: Increase frame queue size for slow FPS
• camera-arv: Prevent crashing due to empty QArvEnumeration
• camera-tis: Fix corrupted and mislabeled 16-bit grayscale frames
• videorecorder: Make lossless encoding fully lossless for color images
• videorecorder: Add an option to record colors exactly
• videorecorder: Keep the lossless checkbox in sync with the codec
• videorecorder: Refuse odd frame dimensions, and stop producing them
• videorecorder: Drop stale Matroska hint, document raw VFW log warning
• videorecorder: Fix frame buffer leak on file slice rollover
• videorecorder: Do not let a quality of zero be silently discarded
• videorecorder: Harden settings dialog against inconsistent loaded state
• videorecorder: Fix VP9 lossless encoding
• videorecorder: Prevent GUI from overriding the loaded lossless setting
• videorecorder: Fix AV1 VAAPI
• videorecorder: Preserve exact-color encode metadata
• videorecorder: Preserve exact colors for deferred encoding
• videorecorder: Preserve raw gray16 in Matroska
• videorecorder: Warn about signed gray16 input
• videorecorder: Convert gray16 to native byte order
• videorecorder: Test raw gray16 Matroska round-trip
• videotransform: Keep even crop regions in bounds
• videotransform: Keep scaled frame dimensions even
• Guard against full disks when writing tsync files deferred video encoding
• imgui: Survive recreation of the OpenGL context
• imgui: Give the renderer and its window wrapper a single owner
• mlink: Fail nicer when publishing a sample fails
• mlink: Ensure the master will never abort if an iox send fails
• Guard against IOX node creation failures
• rtkit: Don't use the XDG portal if we don't have to
• Work around a KTextEditor crash with frameworks == 6.28
• Fix build with GCC 16
• engine: Fix lost-wakeup race on the run start barrier
• fabric: Keep subscription suspension consumer-owned when a stream (re)starts
• fabric: Stop DataStream from writing the suspension flag of its subscriptions
• engine: Warn if an inactive module's input queue still holds data at run end
• mlink: Skip output forwarder when every destination module is dormant

This release includes the following changes:

• camera-arv: Move decoder tests into faster unit test
• videorecorder: Cover all raw Matroska pixel formats in the round-trip test
• datactl: Add a helper for recycling image buffers safely
• datactl: Make signal-block consumers type-agnostic
• logging: Enable IOX debug logging if we are in verbose mode
• logging: Improve GLib log handler & cache root logger
• fabric: Namespace misc util functions
• tests: Make inactive-subscriptions scenario cover Python -> disabled module

With contributions from:

Matthias Klumpp, Victor Negîrneac

This release fixes the following bugs:

• datactl: Make new-style tsync files distinguishable from older ones and pass edlio validation
• udev: Properly detect installed udev rules again
• videorecorder: When recording sections, ensure we can't end up with no-frame files
• camera-arv: Display status message on FPS mismatch
• camera-arv: Make FPS sentinel adaptive instead of a fixed number
• camera-lc: Refactor to fail fast if requests don't complete after 10 sec
• camera-lc/generic: Check framerate adaptively every 2sec

This release includes the following change:

• tests: Validate generated datasets from GUI tests using edlio

This release adds the following features:

• Use dynamic port selector in Zarr/JSON writers
• datactl: Allow for more SignalBlock typecasts
• Streamline EDL data-file basename slug creation algorithm and logic
• ui: Animate overloaded connections
• meson: Add negative-list to disable specific modules
• flowmeter: Add stream flow meter debugging helper module
• open-ephys-acq: Suggest proper output data names for streams
• open-ephys-acq: Read digital input lines and export them as stream
• open-ephys-acq: Auto-enable ADC/AUX if any one of their channels is selected
• jsonwriter/zarrwriter: Add the ability to save raw TTL line readings
• latencycheck: Add histogram display and make module a non-developer module
• plot-timeseries: Add support for plotting raw TTL line readings
• signalfilter: New module to apply IIR filter chains to signals
• videotransform: Add Mirror and clockwise Rotate transforms

This release fixes the following bugs:

• udev: Ensure our rules run before 73-seat-late.rules
• engine: Streamline niceness/realtime handling against the RtKit budget
• engine: Estimate connection heat based on items size+count, not just count
• fabric: Avoid unnecessary syscalls when notifying event handlers
• mlink: Always process control-events on sample-independent event source
• mlink: Fix backpressure and never drop samples on overloaded connections
• imgui: Don't write a unneeded imgui.ini into the working directory
• imgui: Ensure text fields are editable
• imgui: Make sure the current locale decimal point is properly respected
• camera-arv: Gate teardown and don't capture thread stack objects
• camera-generic: Don't resize received frames, set framerate early
• camera-generic: Prevent log spam for normalized-scale property read-backs
• camera-generic: Pull supported resolutions from V4L
• camera-lc: Add new libcamera-based module for capture from UVC devices
• canvas: Simplify the display speed adaptation logic
• canvas: Set a larger default canvas size
• open-ephys-acq: Address all compiler warnings
• open-ephys-acq: Align value scaling to what the Open Ephys GUI does as well
• open-ephys-acq: Shift start timestamp to recorded start time
• open-ephys-acq: Add buffer-aware timesync support
• plot-timeseries: Drop removed channels from list if source metadata changes
• plot-timeseries: Remember manually-set y-axis limits in project settings
• plot-timeseries: Use XXH3 in channel-color algorithm for deterministic colors
• videorecorder: Don't fail when deferred-encoding very short video chunks
• videorecorder: Drop misleading log warning when recording raw video
• json/zarrwriter: Properly write sampling rate into metadata as well
• zarrwriter: Use a softer color that looks even less like the error color

This release includes the following changes:

• vendor: Update liboni
• ci: Implement basic resource usage instrumentation
• ci: Perform optimized test builds
• ci: Release with combined source tarballs
• debian: Drop PPA upload helpers
• tests: Add more complex signal viewer helper script
• plot-timeseries: Port internals to use std::string instead of QString

With contributions from:

Matthias Klumpp, Victor Negîrneac