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Change Log

All notable changes to MIKMIDI are documented in this file. This project adheres to Semantic Versioning. GitHub issue numbers for changes are in parentheses where available.

[Unreleased]

This section is for recent changes not yet included in an official release.

[1.7.0] - 2018-11-03

ADDED

  • An outputPort property on MIKMIDIDeviceManager (#251)
  • Support for saving/loading MIDI mappings on iOS (#131)
  • Support for sending 14-bit control change messages (#230/#235)
  • Sysex message coalescing (#122, #198, #200)
  • Custom initializers for various MIKMIDIMetaEvent subclasses (#150)

CHANGED

  • MIKMIDISynthesizer (and subclass) creation methods now take an NSError parameter. Non-error-returning versions are deprecated. (#217)

FIXED

  • Several sharp edges when bridging into Swift (#207, #216, #238)
  • Exception thrown when converting channel pressure and polyphonic key pressure events to commands (#249)
  • Failure to parse sysex messages in certain circumstances (#233)
  • Bug that caused setting MIKMIDISystemExclusiveCommand.sysexChannel to sometimes delete or corrupt sysexData (#239)
  • Crash caused by race condition in MIKMIDIInputPort (#223)
  • Failure to notice new virtual endpoints created in other processes (#120)
  • Duplicate virtual devices in connection manager
  • Crash when MIDI events are received after an MIKMIDIConnectionManager has been deallocated (#215)

[1.6.2] - 2017-11-09

ADDED

  • System Exclusive multi-packet coalescing (#200)
  • MIKMIDISystemKeepAliveCommand for keep alive messages
  • MIKMIDIPacketCreateFromCommands()
  • Convenience method for creating control change commands

FIXED

  • -[MIKMIDIDeviceManager connectedDevices] is no longer always nil (#162)
  • Incorrect MIKMIDIClock timing on iOS devices (#180 and #199)
  • Incorrect metaDataType on instances of MIKMIDIMetaEvent subclasses (#151)
  • Minor GCD queue creation bug (#204)
  • Parsing multiple MIDI messages of different types in a single incoming packet (#201)
  • Buffer overflow in -[MIKMIDISystemExclusiveCommand manufacturerID] (#197)
  • Memory leak in MIKStringPropertyFromMIDIObject() (#206)
  • Retain cycle between MIKMIDISequence and MIKMIDISequencer (#205)
  • Bug that caused note offs to be scheduled early by MIKMIDISequencer
  • Frequent hash collisions between instances of MIKMIDIObject (#181)
  • Minor Swift incompatibilities

[1.6.1] - 2016-11-04

ADDED

  • MIDI To Audio example project showing how to use MIKMIDI to do offline rendering of MIDI to an audio file. (#164)

FIXED

  • Incorrect nullability annotations for MIKMIDINoteEvent convenience methods.
  • Minor documentation mistakes.
  • Updated example projects for Xcode 8.

CHANGED

  • Moved macOS example projects into a "macOS" subfolder of Examples.
  • Email address for maintainer (Andrew Madsen).

[1.6.0] - 2016-06-01

ADDED

  • MIKMIDISequencer now respects the offset, muted, and solo properties of MIKMIDITrack. (#99)
  • Error-returning variant of -[MIKMIDISequence addTrack:], -addTrackWithError:. -addTrack: is now deprecated. (#134)
  • Added maximumLookAheadInterval property to MIKMIDISequencer (ac8142b)
  • Fixed issue where click track events would be added to the beginning of a loop when the status was EnabledOnlyInPreRoll. (2535c5b)
  • Convenience initializers for MIKMIDINoteOn/OffCommand that take MIDITimeStamps instead of NSDates. (0bf4a00)
  • Custom initializers for several MIKMIDIMetaEvent subclasses, greatly simplifing their creation. (#150)
  • MIKMIDIPacketCreate() function to ease creating MIDIPacket structs in Swift. (a12f121)

CHANGED

  • Improved support for subclassing MIKMIDISynthesizer and customizing MIDI event scheduling (87b38ea)

FIXED

  • Issue where MIKMIDISequencer would almost immediately stop recording if its sequence was empty. (#45)
  • MIKMIDIMetronome allows loading soundfonts. (a50ccdf)
  • Issue with stuck notes in MIKMIDISequencer's pre-roll. (07a9304)
  • MIKMIDISequencer now ignores incoming MIDI in recording mode during the pre-roll. (2312e4d)
  • Potentional crash in MIKMIDISequencer. (4c0ce02)
  • MIKMIDIGetCurrentTimeStamp() is now available in Swift (658cb63)
  • Scheduling issues in MIKMIDISynthesizer (6698fad)
  • Updated MIDI Files Testbed to fix deprecation warnings.
  • Improved MIDI Soundboard example for iOS (#119, d0ada0a, a35ee94)
  • Incorrect length for some MIKMIDICommand subclass instances when created with alloc/init. (#125)
  • Incorrect MSB calculation for pitch bend commands. (#147, thanks to akmidd)
  • Bug in logic for detecting and exposing available virtual sources and destinations (#144, #145, thanks to jrmaxdev)

DEPRECATED

This release deprecates a number of existing MIKMIDI APIs. These APIs remain available, and functional, but developers should switch to the use of their replacements as soon as possible.

  • -[MIKMIDISequence addTrack:]. Use -addTrackWithError: instead. (#134)

[1.5.0] - 2015-11-14

ADDED

  • MIKMIDISynthesizer for general-purpose MIDI synthesis. MIKMIDIEndpointSynthesizer is now a subclass of MIKMIDISynthesizer.
  • MIKMIDISequencer now has API for routing tracks to MIDI endpoints, synthesizers, or other command scheduling objects (-(setC|c)ommandScheduler:forTrack:)
  • Nullability and Objective-C generics annotations for much nicer usage from Swift. (#39 & #108)
  • API for loading soundfont files using -[MIKMIDISynthesizer loadSoundfontFromFileAtURL:error:]. (#47)
  • Added MIKMIDIEvent subclass MIKMIDIChannelEvent and related children (MIKMIDIPitchBendChangeEvent, MIKMIDIControlChangeEvent, etc.). (#63)
  • Added MIKMIDIChannelVoiceCommand subclasses for remaining MIDI channel voice message types (pitch bend, polyphonic key pressure, channel pressure). (#65)
  • API on MIKMIDISequence to control whether channels are split into individual tracks or not. (#66)
  • Preliminary unit tests (still need a lot more coverage with tests).
  • API on MIKMIDISequencer to set playback tempo (overrides sequence tempo). (#81)
  • Ability to explicitly stop MIKMIDIMappingGenerator's mapping via -[MIKMIDIMappingGenerator endMapping]. (#84)
  • Looping API on MIKMIDISequencer (#85)
  • API for syncing MIKMIDIClocks (see -[MIKMIDIClock syncedClock]). (#86)
  • Ability to suspend MIDI mapping generation, then later resume right where it left off (-[MIKMIDIMappingGenerator suspendMapping/resumeMapping]). (#102)
  • API for customizing mapping file naming. See MIKMIDIMappingManagerDelegate. (#114)
  • MIKMIDIConnectionManager which implements a generic MIDI device connection manager including support for saving/restoring connection configuration to NSUserDefaults, etc. (#106)
  • Other minor API additions and improvements. (#87, #89, #90, #93, #94)

CHANGED

  • MIKMIDIEndpointSynthesizerInstrument was renamed to MIKMIDISynthesizerInstrument. This does not break existing code, due to the use of @compatibility_alias
  • MIKMIDISequencer creates and uses default synthesizers for each track, allowing a minimum of configuration for simple MIDI playback. (#34)
  • MIKMIDISequence and MIKMIDITrack are now KVO compliant for most of their properties. Check documentation for specifics. (#35 & #67)
  • MIKMIDISequencer can now send MIDI to any object that conforms to the new MIKMIDICommandScheduler protocol. Removes the need to use virtual endpoints for internal scheduling. (#36)
  • Significantly improved performance of MIDI responder hierarchy search code, including adding (optional) caching. (#82)
  • Improved MIKMIDIDeviceManager API to simplify device disconnection, in particular. (#109)

FIXED

  • MIKMIDIEndpointSynthesizer had too much reverb by default. (#38)
  • MIKMIDISequencer's playback would stall or drop notes when the main thread was busy/blocked. Processing is now done in the background. (#48 & #92)
  • MIKMIDIEvent (or subclass) instances created with alloc/init no longer have a NULL eventType. (#59)
  • Warnings when using MIKMIDI.framework in a Swift project. (#64)
  • Bug that could cause MIKMIDISequencer to sometimes skip the first events in its sequence upon starting playback. (#95)
  • Occasional crash (in MIKMIDIEventIterator) during MIKMIDISequencer playback. (#100)
  • KVO notifications for MIKMIDIDeviceManager's availableDevices property now includ valid NSKeyValueChangeOld/NewKey entries and associated values. (#112)
  • Exception is no longer thrown when setting "empty" MIKMutableMIDIMetaTimeSignatureEvent's numerator. (#57)
  • Other minor bug fixes (#71, #83)

DEPRECATED

This release deprecates a number of existing MIKMIDI APIs. These APIs remain available, and functional, but developers should switch to the use of their replacements as soon as possible.

  • -[MIKMIDITrack getTrackNumber:]. Use trackNumber @property on MIKMIDITrack instead.
  • -[MIKMIDISequence getTempo:atTimeStamp:]. Use -tempoAtTimeStamp: instead.
  • -[MIKMIDISequence getTimeSignature:atTimeStamp:]. Use -timeSignatureAtTimeStamp: instead.
  • doesLoop, numberOfLoops, loopDuration, and loopInfo on MIKMIDITrack. These methods affect looping when using MIKMIDIPlayer, but not MIKMIDISequencer. Use -[MIKMIDISequencer setLoopStartTimeStamp:endTimeStamp:] instead.
  • -insertMIDIEvent:, -insertMIDIEvents:, -removeMIDIEvents:, and -clearAllEvents on MIKMIDITrack. Use -addEvent:, -removeEvent:, -removeAllEvents instead.
  • -[MIKMIDIDeviceManager disconnectInput:forConnectionToken:]. Use -disconnectConnectionForToken: instead.
  • -setMusicTimeStamp:withTempo:atMIDITimeStamp:, +secondsPerMIDITimeStamp, +midiTimeStampsPerTimeInterval: on MIKMIDIClock. See documentation for replacement API.
  • +[MIKMIDICommand supportsMIDICommandType:]. Use +[MIKMIDICommand supportedMIDICommandTypes] instead. This is only relevant when creating custom subclasses of MIKMIDICommand, which most MIKMIDI users do not need to do. (#57)

[1.0.1] - 2015-04-20

ADDED

  • Support for Carthage
  • Better error handling for MIKMIDIClientSource/DestinationEndpoint, particularly on iOS.
  • MIKMIDISequence initializer methods that include an error parameter.

CHANGED

  • Improved documentation.

FIXED

  • MIKMIDIMetronome on iOS (8).
  • MIKMIDICommand's channel now defaults to 0 as it should.

DEPRECATED

  • -[MIKMIDISequence initWithData:]. Use -[MIKMIDISequence initWithData:error:], instead.
  • +[MIKMIDISequence sequenceWithData:]. Use +[MIKMIDISequence sequenceWithData:error:], instead.
  • -[MIKMIDISequence/MIKMIDITrack setDestinationEndpoint:]. Use API on MIKMIDISequencer instead.

[1.0.0] - 2015-01-29

ADDED

  • MIDI Files Testbed OS X example app
  • Added MIKMIDISequence, MIKMIDITrack, MIKMIDIEvent, etc. to support loading, creating, saving MIDI files
  • API on MIKMIDIManager to allow obtaining only bundled or user mappings
  • MIKMIDIPlayer for playing MIDI files
  • Preliminary (experimental/incomplete) implementation of MIKMIDISequencer for both playback and recording
  • MIKMIDIEndpointSynthesizerInstrument and associated instrument selection API for MIDI synthesis
  • API (MIKMIDIClientSource/DestinationEndpoint) for creating virtual MIDI endpoints
  • iOS framework target.

CHANGED

  • Improved README.

FIXED

  • Fixed bug where sending a large number of MIDI messages at a time could fail.
  • MIKMIDIMapping save/load is now supported on iOS.
  • Warnings when building for iOS.

[0.9.2] - 2014-06-13

ADDED

  • Added MIKMIDIEndpointSynthesizer for synthesizing incoming MIDI (OS X only for now).
  • Added Cocoapods podspec file to repository.

FIXED

  • MIKMIDIInputPort can parse multiple MIDI messages out of a single packet.

[0.9.1] - 2014-05-24

FIXED

Minor documentation typo fixes.

[0.9.0] - 2014-05-16

ADDED

Initial release