LV2

LV2 1.18.10

2022-09-09T17:26:00-04:00

LV2 1.18.10 has been released. LV2 is a plugin standard for audio systems. It defines an extensible C API for plugins, and a format for self-contained "bundle" directories that contain plugins, metadata, and other resources. See http://lv2plug.in/ for more information.

Changes:

Fix includedir in pkg-config file
Fix missing example plugin UI binaries
Only install lv2specgen when required Python modules are found
Replace change history data with a plain text NEWS file

LV2 1.18.8

2022-08-12T00:00:00-04:00

LV2 1.18.8 has been released. LV2 is a plugin standard for audio systems. It defines an extensible C API for plugins, and a format for self-contained "bundle" directories that contain plugins, metadata, and other resources. See http://lv2plug.in/ for more information.

Changes:

Fix documentation build with Python 3.7.
Fix documentation build with meson 0.56.2.
Fix lv2.h missing from installation.
eg-midigate: Fix output timing.
eg-sampler: Add resampling via libsamplerate.
eg-sampler: Fix potentially corrupt notification events.
lv2core: Fix inconsistent plugin class labels.
lv2specgen: Fix installed data paths.

LV2 1.18.6

2022-07-07T00:00:00-04:00

LV2 1.18.6 has been released. LV2 is a plugin standard for audio systems. It defines an extensible C API for plugins, and a format for self-contained "bundle" directories that contain plugins, metadata, and other resources. See http://lv2plug.in/ for more information.

Changes:

Add dark mode style for documentation.
Clean up and modernize Python support code.
Fix or avoid new compiler and tool warnings.
Rearrange source tree to be directly usable by dependants.
Remove archaic properties from foaf vocabulary.
Replace canonical dcs ontology with a minimal version for LV2.
Separate API headers from data.
Switch to Meson build system.

LV2 1.18.4

2022-05-26T04:00:00-04:00

LV2 1.18.4 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Fix build issues with newer toolchains.
Fix spelling errors.
atom: Fix spelling errors.
patch: Fix spelling errors.
patch: Fix type and range of patch:value.
patch: Make the type of patch:wildcard more precise.
state: Fix spelling errors.
ui: Deprecate ui:resize.
ui: Fix spelling errors.

LV2 1.18.2

2021-01-07T05:00:00-05:00

LV2 1.18.2 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Various code cleanups and infrastructure improvements.
eg-sampler: Save and restore gain parameter value.
state: Fix state:StateChanged URI in metadata and documentation.

LV2 1.18.0

2020-04-26T04:00:00-04:00

LV2 1.18.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Improve documentation.
Separate extended documentation from primary data.
core: Add lv2:Markdown datatype.
core: Deprecate lv2:reportsLatency.
patch: Fix incorrect type of patch:sequenceNumber.
port-groups: Remove incorrect type of pg:letterCode.
port-groups: Replace broken links with detailed Ambisonic channel descriptions.
state: Add state:freePath feature.
ui: Add ui:requestValue feature.
ui: Add ui:scaleFactor, ui:foregroundColor, and ui:backgroundColor properties.
ui: Deprecate ui:binary.
worker: Improve documentation.

LV2 1.16.0

2019-02-03T05:00:00-05:00

LV2 1.16.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Add core/attributes.h utility header.
Add lv2_validate utility.
Aggressively deprecate uri-map and event extensions.
Install headers to simpler paths.
Simplify use of lv2specgen.
Upgrade build system and fix building with Python 3.7.
atom: Add lv2_atom_object_get_typed() for easy type-safe access to object properties.
core: Add lv2:MIDIPlugin class.
core: Rework port restrictions so that presets can be validated.
eg-midigate: Respond to "all notes off" MIDI message.
eg-sampler: Add waveform display to UI.
midi: Fix incorrect range of midi:chunk.
options: Relax range of opts:requiredOption and opts:supportedOption
patch: Add patch:accept property.
patch: Add patch:context property.
state: Add state:StateChanged for notification events.
time: Clarify time:beat origin.
units: Fix outdated port description in documentation.
units: Remove overly restrictive domain from units:unit.

LV2 1.14.0

2016-09-19T04:00:00-04:00

LV2 1.14.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

buf-size: Add bufsz:coarseBlockLength feature.
buf-size: Add bufsz:nominalBlockLength option.
core: Add lv2:enabled designation.
core: Add lv2_util.h with lv2_features_data() and lv2_features_query().
eg-sampler: Fix handling of state file paths.
eg-sampler: Support thread-safe state restoration.
eg-scope: Don't feed back UI state updates.
log: Add lv2_log_logger_set_map() for changing the URI map of an existing logger.
state: Add LV2_STATE_ERR_NO_SPACE status flag.
state: Add state:threadSafeRestore feature for dropout-free state restoration.
time: Define LV2_TIME_PREFIX.
ui: Add missing property labels.
ui: Improve documentation.

LV2 1.12.0

2015-04-07T04:00:00-04:00

LV2 1.12.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Fix merging of version histories in specification documentation.
Improve API documentation.
Simplify property restrictions by removing redundancy.
core: Add extern C and visibility attribute to LV2_SYMBOL_EXPORT.
core: Add lv2:isSideChain port property.
core: Relax domain of lv2:minimum lv2:maximum and lv2:default so they can be used to describe properties/parameters as well.
eg-sampler: Add gain parameter.
eg-sampler: Support patch:Get, and request initial state from UI.
parameters: Add range to parameters so hosts know how to control them.
patch: Add patch:Copy method.
patch: Define patch:Get with no subject to implicitly apply to receiver. This can be used by UIs to get an initial description of a plugin.
units: Add lv2:Parameter to domain of units:unit.
units: Fix non-existent port type in examples.

LV2 1.10.0

2014-08-08T04:00:00-04:00

LV2 1.10.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Fix -Wconversion warnings in headers.
Upgrade to waf 1.7.16.
atom: Add lv2_atom_forge_is_object_type() and lv2_atom_forge_is_blank() to ease backwards compatibility.
atom: Add lv2_atom_forge_key() for terser object writing.
atom: Add lv2_atom_sequence_clear() and lv2_atom_sequence_append_event() helper functions.
atom: Deprecate Blank and Resource in favour of just Object.
core: Clarify lv2_descriptor() and lv2_lib_descriptor() documentation.
event: Minor documentation improvements.
lv2specgen: Display deprecated warning on classes marked owl:deprecated.
patch: Add patch:sequenceNumber for associating replies with requests.
ui: Add show interface so UIs can gracefully degrade to separate windows if hosts can not use their widget directly.
ui: Fix identifier typos in documentation.

LV2 1.8.0

2014-01-04T05:00:00-05:00

LV2 1.8.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Add scope example plugin from Robin Gareus.
Install lv2specgen for use by other projects.
atom: Make lv2_atom_*_is_end() arguments const.
core: Add lv2:prototype for property inheritance.
log: Add missing include string.h to logger.h for memset.
lv2specgen: Fix links to externally defined terms.
ui: Fix LV2_UI_INVALID_PORT_INDEX identifier in documentation.

LV2 1.6.0

2013-08-09T04:00:00-04:00

LV2 1.6.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Fix lv2specgen usage from command line.
Fix port indices of metronome example.
Upgrade to waf 1.7.11.
atom: Fix crash in forge.h when pushing atoms to a full buffer.
ui: Add idle interface so native UIs and foreign toolkits can drive their event loops.
ui: Add ui:updateRate property.

LV2 1.4.0

2013-02-17T05:00:00-05:00

LV2 1.4.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Add metronome example plugin to demonstrate sample accurate tempo sync.
Generate book-style HTML documentation from example plugins.
atom: Fix lv2_atom_sequence_end().
atom: Improve atom documentation.
atom: Remove atom:stringType in favour of owl:onDatatype so generic tools can understand and validate atom literals.
buf-size: Fix typo in bufsz:sequenceSize label.
core: Add lv2:EnvelopePlugin class.
core: Add lv2:control for designating primary event-based control ports.
core: Make lv2:Parameter rdfs:subClassOf rdf:Property.
core: Reserve minor version 0 for unstable development plugins.
core: Set range of lv2:designation to lv2:Designation.
event: Fix incorrect return type in lv2_event_get().
log: Add logger convenience API.
options: Set the range of opts:requiredOption and opts:supportedOption to opts:Option.
patch: Add patch:readable and patch:writable for describing available properties.
patch: Make patch:Set a compact message for setting one property.
state: Add state:loadDefaultState feature so plugins can have their default state loaded without hard-coding default state as a special case.
ui: Fix incorrect linker flag in ui:makeSONameResident documentation.

LV2 1.2.0

2012-10-14T04:00:00-04:00

LV2 1.2.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Move all project metadata for extensions (e.g. change log) to separate files to spare hosts from loading them during discovery.
Use stricter datatype definitions conformant with the XSD and OWL specifications for better validation.
atom: Add LV2_ATOM_CONTENTS_CONST and LV2_ATOM_BODY_CONST.
atom: Add lv2_atom_object_body_get().
atom: Fix implicit conversions in forge.h that are invalid in C++11.
atom: Fix lv2_atom_object_next() on 32-bit platforms.
atom: Fix outdated documentation in forge.h.
atom: Use consistent label style.
buf-size: Initial release.
core: Use consistent label style.
dynmanifest: Use consistent label style.
event: Make event iterator gracefully handle optional ports.
event: Remove asserts from event-helper.h.
event: Use consistent label style.
event: Use more precise domain and range for EventPort properties.
midi: Add C definitions for message types and standard controllers.
midi: Add midi:HexByte datatype for status bytes and masks.
midi: Add midi:binding and midi:channel predicates.
midi: Fix definition of SystemExclusive status byte.
midi: Remove non-standard midi:Tick message type.
midi: Use consistent label style.
morph: Initial release.
options: Initial release.
parameters: Add param:sampleRate.
parameters: Add parameters.h of URI defines for convenience.
parameters: Use consistent label style.
port-groups: Use consistent label style.
port-props: Use consistent label style.
presets: Add preset banks.
presets: Use consistent label style.
state: Use consistent label style.
time: Use consistent label style.
ui: Add missing LV2_SYMBOL_EXPORT declaration for lv2ui_descriptor prototype.
ui: Add types for WindowsUI, CocoaUI, and Gtk3UI.
ui: Use consistent label style.
units: Remove units:name in favour of rdfs:label.
units: Use consistent label style.
urid: Fix typo in urid:unmap documentation.

LV2 1.0.0

2012-04-16T04:00:00-04:00

LV2 1.0.0 has been released. LV2 is a plugin standard for audio systems. It defines a minimal yet extensible C API for plugin code and a format for plugin "bundles". See http://lv2plug.in for more information.

Changes:

Initial release as a unified project. Projects can now simply depend on the pkg-config package 'lv2' for all official LV2 APIs.
New extensions: atom, log, parameters, patch, port-groups, port-props, resize-port, state, time, worker.
atom: Initial release.
core: Add lv2:CVPort.
core: Add metadata concept of a designation, a channel or parameter description which can be assigned to ports for more intelligent use by hosts.
core: Add new discovery API which allows libraries to read bundle files during discovery, makes library construction/destruction explicit, and adds extensibility to prevent future breakage.
core: Fix LV2_SYMBOL_EXPORT and lv2_descriptor prototype for Windows.
core: Merge with unified LV2 package.
core: Relax the range of lv2:index so it can be used for things other than ports.
core: Remove lv2:Resource, which turned out to be meaningless.
data-access: Merge with unified LV2 package.
dynmanifest: Merge with unified LV2 package.
event: Fix bug in lv2_event_reserve().
event: Fix incorrect ranges of some properties.
event: Merge with unified LV2 package.
instance-access: Merge with unified LV2 package.
log: Initial release.
midi: Add class definitions for various message types.
midi: Document how to serialise a MidiEvent to a string.
midi: Merge with unified LV2 package.
parameters: Initial release.
patch: Initial release.
port-groups: Initial release.
port-props: Initial release.
presets: Add pset:preset property for describing the preset currently applied to a plugin instance.
presets: Merge with unified LV2 package.
presets: Remove pset:appliesTo property, use lv2:appliesTo instead.
resize-port: Initial release.
state: Initial release.
time: Initial release.
ui: Add port protocols and a dynamic notification subscription mechanism, for more flexible communication, and audio port metering without control port kludges.
ui: Add support for referring to ports by symbol.
ui: Add touch feature to notify the host that the user has grabbed a control.
ui: Add ui:parent and ui:resize.
ui: Add ui:portMap for accessing ports by symbol, allowing for UIs to be distributed separately from plugins.
ui: Merge with unified LV2 package.
units: Add header of URI defines.
units: Add unit for audio frames.
units: Merge with unified LV2 package.
uri-map: Merge with unified LV2 package.
urid: Add feature struct names.
urid: Merge with unified LV2 package.
worker: Initial release.