go fmt all files.

add midi event toggle to the pooler

.gitignore

@@ -1,5 +1,5 @@
 # quick tests
-quick.go
+quick
 
 # Binaries for programs and plugins
 *.exe

CHANGELOG.md

@@ -10,3 +10,100 @@ Before any major/minor/patch bump all unit tests will be run to verify they pass
 ## [Unreleased]
 
 -   [x]
+
+## [1.3.0] - 2022-08-22
+
+### Added
+
+-   midi type, supports midi devices
+-   midi updates added to the pooler
+-   event type, supports toggling event updates through EventAdd() and EventRemove() methods.
+-   Forwarder methods for get/set float/string parameters added to Remote type
+-   Midi, Events sections added to README.
+
+### Changed
+
+-   macrobutton updates moved into its own goroutine
+-   observer example updated to include midi updates
+-   level updates are now disabled by default, should be enabled explicitly
+
+## [1.2.0] - 2022-07-10
+
+### Added
+
+-   docstrings added to types, methods and functions
+-   version retractions added to go.mod
+
+### Changed
+
+-   Entry method renamed from GetRemote to NewRemote
+-   Readme updated to reflect latest changes
+
+## [1.1.0] - 2022-06-30
+
+### Added
+
+-   Level updates implemented in Pooler struct. Runs in its own goroutine.
+
+### Fixed
+
+-   Fixed bug with identifier in outputs struct.
+
+### Changed
+
+-   Package files moved into root of repository.
+-   Remote struct now exported type
+
+## [1.0.0] - 2022-06-30
+
+### Added
+
+-   recorder, device structs implemented
+-   gainlayers field in strip struct implemented
+-   levels field in strip, bus structs implemented
+-   pooler ratelimit set at 33ms
+
+## [0.0.3] - 2022-06-25
+
+### Added
+
+-   pre-commit.ps1 added for use with git hook
+-   unit tests for factory functions added
+-   vban parameter methods added
+-   support for observers added. publisher/observer structs defined
+-   Pooler struct added, pdirty, mdirty now updated continously in a goroutine
+
+### Changed
+
+-   NewRemote factory method now uses director, builder types to create Remote types.
+-   cdll renamed to path
+-   test suite now using testify/assert
+
+## [0.0.2] - 2022-06-23
+
+### Added
+
+-   physicalStrip, virtualStrip, physicalBus and virtualBus types defined.
+-   factory methods for strip, bus now cast return values to interface types.
+-   parameter methods added to strip, bus types.
+-   command struct implemented
+-   bus, vban unit tests added
+
+### Changed
+
+-   strip, bus slices in remote type defined as interface slice types.
+-   bindings in base now prepended with vm.
+-   vban fields added to kind structs
+
+## [0.0.1] - 2022-06-22
+
+### Added
+
+-   interface entry point defined in remote
+-   some base functions are exported through forwarding methods in Remote type (Login, Logout etc)
+-   wrapper around the CAPI defined in base
+-   path helper functions defined in cdll
+-   kind structs defined in kinds. These describe the layout for each version.
+-   channel, strip, bus structs getter/setter procedures defined.
+-   button struct fully implemented.
+-   initial test commit

README.md

@@ -8,9 +8,9 @@ For an outline of past/future changes refer to: [CHANGELOG](CHANGELOG.md)
 
 ## Tested against
 
--   Basic 1.0.8.2
+-   Basic 1.0.8.4
--   Banana 2.0.6.2
+-   Banana 2.0.6.4
--   Potato 3.0.2.2
+-   Potato 3.0.2.4
 
 ## Requirements
 
@@ -19,11 +19,17 @@ For an outline of past/future changes refer to: [CHANGELOG](CHANGELOG.md)
 
 ## Installation
 
+#### GO.MOD
+
 Add to your `go.mod` file:
 
-`require github.com/onyx-and-iris/voicemeeter-api-go v1.0.0`
+`require github.com/onyx-and-iris/voicemeeter-api-go vX.X.X`
 
-Install voicemeeter-api-go package from your console
+where `vX.X.X` is the version you require.
+
+#### GO GET
+
+Install voicemeeter-api-go package from your console to download the latest version.
 
 `go get github.com/onyx-and-iris/voicemeeter-api-go`
 
@@ -36,25 +42,27 @@ package main
 
 import (
 	"fmt"
+	"log"
 
-	"github.com/onyx-and-iris/voicemeeter-api-go/voicemeeter"
+	"github.com/onyx-and-iris/voicemeeter-api-go"
 )
 
 func main() {
 	kindId := "banana"
-	vmRem := voicemeeter.GetRemote(kindId)
+	vm, err := voicemeeter.NewRemote(kindId)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
 
-	vmRem.Login()
+	vm.Login()
 
-	vmRem.Strip[0].SetLabel("rode podmic")
+	vm.Strip[0].SetLabel("rode podmic")
-	vmRem.Strip[0].SetMute(true)
+	vm.Strip[0].SetMute(true)
-	fmt.Printf("Strip 0 (%s) mute was set to %v\n", vmRem.Strip[0].GetLabel(), vmRem.Strip[0].GetMute())
+	fmt.Printf("Strip 0 (%s) mute was set to %v\n", vm.Strip[0].GetLabel(), vm.Strip[0].GetMute())
-
-	vmRem.Logout()
 }
 ```
 
-
 ## `kindId`
 
 Pass the kind of Voicemeeter as an argument. kindId may be:
@@ -64,235 +72,381 @@ Pass the kind of Voicemeeter as an argument. kindId may be:
 -   `potato`
 
 ## `Remote Type`
-#### `vmRem.Strip`
+
+#### `vm.Strip`
+
 []t_strip slice containing both physicalStrip and virtualStrip types
-#### `vmRem.Bus`
+
+#### `vm.Bus`
+
 []t_bus slice containing both physicalBus and virtualBus types
-#### `vmRem.Button`
+
+#### `vm.Button`
+
 []button slice containing button types, one for each macrobutton
-#### `vmRem.Command`
+
+#### `vm.Command`
+
 pointer to command type, represents action type functions
-#### `vmRem.Vban`
+
+#### `vm.Vban`
+
 pointer to vban type, containing both vbanInStream and vbanOutStream slices
-#### `vmRem.Device`
+
+#### `vm.Device`
+
 pointer to device type, represents physical input/output hardware devices
-#### `vmRem.Recorder`
+
+#### `vm.Recorder`
+
 pointer to recorder type, represents the recorder
 
-#### `vmRem.Type()`
+#### `vm.Midi`
+
+pointer to midi type, represents a connected midi device
+
+#### `vm.Type()`
+
 returns the type of Voicemeeter as a string
-#### `vmRem.Version()`
+
+#### `vm.Version()`
+
 returns the version of Voicemeeter as a string
-#### `vmRem.SendText(<script>)`
+
+#### `vm.GetFloat(<param>)`
+
+gets a float parameter value
+
+#### `vm.SetFloat(<param>, <value>)`
+
+sets a float parameter value eg. vm.SetFloat("strip[0].mute", 1)
+
+#### `vm.GetString(<param>)`
+
+gets a string parameter value
+
+#### `vm.SetString(<param>, <value>)`
+
+sets a string parameter value eg. vm.SetString("strip[0].label", "podmic")
+
+#### `vm.SendText(<script>)`
+
 sets many parameters in script format eg. ("Strip[0].Mute=1;Bus[3].Gain=3.6")
-#### `vmRem.Register(o observer)`
+
+#### `vm.Register(o observer)`
+
 register an object as an observer
-#### `vmRem.Deregister(o observer)`
+
+#### `vm.Deregister(o observer)`
+
 deregister an object as an observer
-#### `vmRem.Pdirty()`
+
+#### `vm.EventAdd(<event>)`
+
+adds an event to the pooler eg. vm.EventAdd("ldirty")
+
+#### `vm.EventRemove(<event>)`
+
+removes an event to the pooler eg. vm.EventRemove("pdirty")
+
+#### `vm.Pdirty()`
+
 returns True iff a GUI parameter has changed
-#### `vmRem.Mdirty()`
+
-returns True iff a macrobutton paramter has changed
+#### `vm.Mdirty()`
+
+returns True iff a macrobutton parameter has changed
 
 ## `Available commands`
 
 ### Strip
 
-The following functions are available
+The following methods are available
 
--	`GetMute() bool`
+-   `GetMute() bool`
--	`SetMute(val bool)`
+-   `SetMute(val bool)`
--	`GetMono() bool`
+-   `GetMono() bool`
--	`SetMono(val bool)`
+-   `SetMono(val bool)`
--	`GetSolo() bool`
+-   `GetSolo() bool`
--	`SetSolo(val bool)`
+-   `SetSolo(val bool)`
--	`GetLimit() int`
+-   `GetLimit() int`
--	`SetLimit(val int)` from -40 to 12
+-   `SetLimit(val int)` from -40 to 12
--	`GetLabel() string`
+-   `GetLabel() string`
--	`SetLabel(val string)`
+-   `SetLabel(val string)`
--	`GetGain() float64`
+-   `GetGain() float64`
--	`SetGain(val float32)` from -60.0 to 12.0
+-   `SetGain(val float32)` from -60.0 to 12.0
--	`GetMc() bool`
+-   `GetMc() bool`
--	`SetMc(val bool)`
+-   `SetMc(val bool)`
--	`GetComp() float64`
+-   `GetComp() float64`
--	`SetComp(val float32)` from 0.0 to 10.0
+-   `SetComp(val float32)` from 0.0 to 10.0
--	`GetGate() float64`
+-   `GetGate() float64`
--	`SetGate(val float32)` from 0.0 to 10.0
+-   `SetGate(val float32)` from 0.0 to 10.0
--	`GetAudibility() float64`
+-   `GetAudibility() float64`
--	`SetAudibility(val float32)` from 0.0 to 10.0
+-   `SetAudibility(val float32)` from 0.0 to 10.0
 -   `GetA1() bool - GetA5() bool`
 -   `SetA1(val bool) - SetA5(val bool)`
 
 example:
 
 ```go
-vmRem.Strip[3].SetGain(3.7)
+vm.Strip[3].SetGain(3.7)
-fmt.Println(vmRem.Strip[0].GetLabel())
+fmt.Println(vm.Strip[0].GetLabel())
-vmRem.Strip[4].SetA1(true)
+vm.Strip[4].SetA1(true)
+```
+
+##### Gainlayers
+
+-   `vm.Strip[i].GainLayer()[j]`
+
+The following methods are available
+
+-   `Get() float64`
+-   `Set(val float32)`
+
+example:
+
+```go
+vm.Strip[6].GainLayer()[3].Set(-13.6)
+```
+
+##### Levels
+
+-   `vm.Strip[i].Levels()`
+
+The following methods are available
+
+-   `PreFader() []float32`
+-   `PostFader() []float32`
+-   `PostMute() []float32`
+
+example:
+
+```go
+fmt.Println(vm.Strip[5].Levels().PreFader())
 ```
 
 ### Bus
 
-The following functions are available
+The following methods are available
 
--	`String() string`
+-   `String() string`
--	`GetMute() bool`
+-   `GetMute() bool`
--	`SetMute(val bool)`
+-   `SetMute(val bool)`
--	`GetEq() bool`
+-   `GetEq() bool`
--	`SetEq(val bool)`
+-   `SetEq(val bool)`
--	`GetMono() bool`
+-   `GetMono() bool`
--	`SetMono(val bool)`
+-   `SetMono(val bool)`
--	`GetLabel() string`
+-   `GetLabel() string`
--	`SetLabel(val string)`
+-   `SetLabel(val string)`
--	`GetGain() float64`
+-   `GetGain() float64`
--	`SetGain(val float32)` from -60.0 to 12.0
+-   `SetGain(val float32)` from -60.0 to 12.0
 
 ```go
-vmRem.Bus[3].SetEq(true)
+vm.Bus[3].SetEq(true)
-fmt.Println(vmRem.Bus[0].GetLabel())
+fmt.Println(vm.Bus[0].GetLabel())
 ```
 
 ##### Modes
 
--	`vmRem.Bus[i].Mode()`
+-   `vm.Bus[i].Mode()`
 
-The following functions are available
+The following methods are available
 
--   `normal`: boolean
+-   `SetNormal(val bool)`
--   `amix`: boolean
+-   `GetNormal() bool`
--   `bmix`: boolean
+-   `SetAmix(val bool)`
--   `composite`: boolean
+-   `GetAmix() bool`
--   `tvmix`: boolean
+-   `SetBmix(val bool)`
--   `upmix21`: boolean
+-   `GetBmix() bool`
--   `upmix41`: boolean
+-   `SetRepeat(val bool)`
--   `upmix61`: boolean
+-   `GetRepeat() bool`
--   `centeronly`: boolean
+-   `SetComposite(val bool)`
--   `lfeonly`: boolean
+-   `GetComposite() bool`
--   `rearonly`: boolean
+-   `SetTvMix(val bool)`
+-   `GetTvMix() bool`
+-   `SetUpMix21(val bool)`
+-   `GetUpMix21() bool`
+-   `SetUpMix41(val bool)`
+-   `GetUpMix41() bool`
+-   `SetUpMix61(val bool)`
+-   `GetUpMix61() bool`
+-   `SetCenterOnly(val bool)`
+-   `GetCenterOnly() bool`
+-   `SetLfeOnly(val bool)`
+-   `GetLfeOnly() bool`
+-   `SetRearOnly(val bool)`
+-   `GetRearOnly() bool`
 
 example:
 
 ```go
-vmRem.Bus[3].Mode().SetAmix(true)
+vm.Bus[3].Mode().SetAmix(true)
+vm.Bus[4].Mode().SetCenterOnly(true)
+```
+
+##### Levels
+
+-   `vm.Bus[i].Levels()`
+
+The following methods are available
+
+-   `All() []float32`
+
+example:
+
+```go
+fmt.Println(vm.Bus[1].Levels().All())
 ```
 
 ### Button
 
-The following functions are available
+The following methods are available
 
--	`GetState() bool`
+-   `GetState() bool`
--	`SetState(val bool)`
+-   `SetState(val bool)`
--	`GetStateOnly() bool`
+-   `GetStateOnly() bool`
--	`SetStateOnly(val bool)`
+-   `SetStateOnly(val bool)`
--	`GetTrigger() bool`
+-   `GetTrigger() bool`
--	`SetTrigger(val bool)`
+-   `SetTrigger(val bool)`
 
 example:
 
 ```go
-vmRem.Button[37].SetState(true)
+vm.Button[37].SetState(true)
-fmt.Println(vmRem.Button[64].GetStateOnly())
+fmt.Println(vm.Button[64].GetStateOnly())
 ```
 
 ### Command
 
-The following functions are available
+The following methods are available
 
--	`Show()`  Show Voicemeeter GUI if it's hidden
+-   `Show()` Show Voicemeeter GUI if it's hidden
--	`Hide()` Hide Voicemeeter GUI if it's shown
+-   `Hide()` Hide Voicemeeter GUI if it's shown
--	`Shutdown()` Shuts down the GUI
+-   `Shutdown()` Shuts down the GUI
--	`Restart()` Restart the audio engine
+-   `Restart()` Restart the audio engine
--	`Lock(val bool)` Lock the Voicemeeter GUI
+-   `Lock(val bool)` Lock the Voicemeeter GUI
 
 example:
 
 ```go
-vmRem.Command.Restart()
+vm.Command.Restart()
-vmRem.Command.Show()
+vm.Command.Show()
 ```
 
 ### VBAN
 
--   `vmRem.Vban.Enable()` `vmRem.Vban.Disable()` Turn VBAN on or off
+-   `vm.Vban.Enable()` `vm.Vban.Disable()` Turn VBAN on or off
 
 ##### Instream | Outstream
 
--   `vmRem.Vban.InStream` `vmRem.Vban.OutStream`
+-   `vm.Vban.InStream` `vm.Vban.OutStream`
 
-The following functions are available
+The following methods are available
 
--	`GetOn() bool`
+-   `GetOn() bool`
--	`SetOn(val bool)`
+-   `SetOn(val bool)`
--	`GetName() string`
+-   `GetName() string`
--	`SetName(val string)`
+-   `SetName(val string)`
--	`GetIp() string`
+-   `GetIp() string`
--	`SetIp(val string)`
+-   `SetIp(val string)`
--	`GetPort() int`
+-   `GetPort() int`
--	`SetPort(val int)` from 1024 to 65535
+-   `SetPort(val int)` from 1024 to 65535
--	`GetSr() int`
+-   `GetSr() int`
--	`SetSr(val int)` (11025, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000)
+-   `SetSr(val int)` (11025, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000)
--	`GetChannel() int`
+-   `GetChannel() int`
--	`SetChannel(val int)` from 1 to 8
+-   `SetChannel(val int)` from 1 to 8
--	`GetBit() int`
+-   `GetBit() int`
--	`SetBit(val int)` 16 or 24
+-   `SetBit(val int)` 16 or 24
--	`GetQuality() int`
+-   `GetQuality() int`
--	`SetQuality(val int)` from 0 to 4
+-   `SetQuality(val int)` from 0 to 4
--	`GetRoute() int`
+-   `GetRoute() int`
--	`SetRoute(val int)` from 0 to 8
+-   `SetRoute(val int)` from 0 to 8
 
 example:
 
 ```go
 # turn VBAN on
-vmRem.Vban.Enable()
+vm.Vban.Enable()
 
 // turn on vban instream 0
-vmRem.Vban.InStream[0].SetOn(true)
+vm.Vban.InStream[0].SetOn(true)
 
 // set bit property for outstream 3 to 24
-vmRem.Vban.OutStream[3].SetBit(24)
+vm.Vban.OutStream[3].SetBit(24)
 ```
 
 ### Device
 
-The following functions are available
+The following methods are available
 
--	`Ins`
+-   `Ins()`
--	`Outs`
+-   `Outs()`
--	`Input(val int)`
+-   `Input(val int)`
--	`Output(val int)`
+-   `Output(val int)`
 
 example:
 
 ```go
-for i := 0; i < int(vmRem.Device.Ins()); i++ {
+for i := 0; i < int(vm.Device.Ins()); i++ {
-	fmt.Println(vmRem.Device.Input(i))
+	fmt.Println(vm.Device.Input(i))
 }
 ```
 
 ### Recorder
 
-The following functions are available
+The following methods are available
 
--	`Play()`
+-   `Play()`
--	`Stop()`
+-   `Stop()`
--	`Pause()`
+-   `Pause()`
--	`Replay()`
+-   `Replay()`
--	`Record()`
+-   `Record()`
--	`Ff()`
+-   `Ff()`
--	`Rew()`
+-   `Rew()`
 
 example:
 
 ```go
-vmRem.Recorder.Play()
+vm.Recorder.Play()
-vmRem.Recorder.Stop()
+vm.Recorder.Stop()
 
 # Enable loop play
-vmRem.Recorder.Loop(true)
+vm.Recorder.Loop(true)
 
 # Disable recorder out channel B2
-vmRem.Recorder.SetB2(false)
+vm.Recorder.SetB2(false)
+```
+
+### Midi
+
+The following methods are available
+
+-   `Channel()` returns the current midi channel
+-   `Current()` returns the most recently pressed midi button
+-   `Get(<button>)` returns the value in cache for the midi button
+
+example:
+
+```go
+var current = vm.Midi.Current()
+var val = vm.Midi.Get(current)
+```
+
+### Events
+
+By default level updates are disabled. Any event may be enabled or disabled. The following events exist:
+
+-   `pdirty` parameter updates
+-   `mdirty` macrobutton updates
+-   `midi` midi updates
+-   `ldirty` level updates
+
+example:
+
+```go
+vm.EventAdd("ldirty")
+
+vm.EventRemove("pdirty")
 ```
 
 ### Run tests
@@ -300,7 +454,7 @@ vmRem.Recorder.SetB2(false)
 To run all tests:
 
 ```
-go run test ./...
+go test ./...
 ```
 
 ### Official Documentation

base.go

@@ -37,10 +37,13 @@ var (
 	vmMdirty         = mod.NewProc("VBVMR_MacroButton_IsDirty")
 	vmGetMacroStatus = mod.NewProc("VBVMR_MacroButton_GetStatus")
 	vmSetMacroStatus = mod.NewProc("VBVMR_MacroButton_SetStatus")
+
+	vmGetMidiMessage = mod.NewProc("VBVMR_GetMidiMessage")
 )
 
 // login logs into the API,
-// then attempts to launch Voicemeeter if it's not running.
+// attempts to launch Voicemeeter if it's not running,
+// initializes dirty parameters.
 func login(kindId string) {
 	res, _, _ := vmLogin.Call()
 	if res == 1 {
@@ -51,14 +54,14 @@ func login(kindId string) {
 		fmt.Println(err)
 		os.Exit(1)
 	}
-	fmt.Println("Logged into API")
+	fmt.Printf("Logged into Voicemeeter %s\n", kindId)
 	for pdirty() || mdirty() {
 	}
 }
 
 // logout logs out of the API,
 // delayed for 100ms to allow final operation to complete.
-func logout() {
+func logout(kindId string) {
 	time.Sleep(100 * time.Millisecond)
 	res, _, _ := vmLogout.Call()
 	if res != 0 {
@@ -66,7 +69,7 @@ func logout() {
 		fmt.Println(err)
 		os.Exit(1)
 	}
-	fmt.Println("Logged out of API")
+	fmt.Printf("Logged out of Voicemeeter %s\n", kindId)
 }
 
 // runVoicemeeter attempts to launch a Voicemeeter GUI of a kind.
@@ -112,6 +115,22 @@ func mdirty() bool {
 	return int(res) == 1
 }
 
+// ldirty returns true iff a level value has changed
+func ldirty(k *kind) bool {
+	_levelCache.stripLevelsBuff = make([]float32, (2*k.PhysIn)+(8*k.VirtIn))
+	_levelCache.busLevelsBuff = make([]float32, 8*k.NumBus())
+
+	for i := 0; i < (2*k.PhysIn)+(8*k.VirtIn); i++ {
+		_levelCache.stripLevelsBuff[i] = float32(getLevel(_levelCache.stripMode, i))
+		_levelCache.stripComp[i] = _levelCache.stripLevelsBuff[i] == _levelCache.stripLevels[i]
+	}
+	for i := 0; i < 8*k.NumBus(); i++ {
+		_levelCache.busLevelsBuff[i] = float32(getLevel(3, i))
+		_levelCache.busComp[i] = _levelCache.busLevelsBuff[i] == _levelCache.busLevels[i]
+	}
+	return !(allTrue(_levelCache.stripComp, (2*k.PhysIn)+(8*k.VirtIn)) && allTrue(_levelCache.busComp, 8*k.NumBus()))
+}
+
 // getVMType returns the type of Voicemeeter, as a string
 func getVMType() string {
 	var type_ uint64
@@ -237,7 +256,8 @@ func setMacroStatus(id, state, mode int) {
 	}
 }
 
-func get_num_devices(dir string) uint64 {
+// getNumDevices returns the number of hardware input/output devices
+func getNumDevices(dir string) uint64 {
 	if strings.Compare(dir, "in") == 0 {
 		res, _, _ := vmGetDevNumIn.Call()
 		return uint64(res)
@@ -247,7 +267,8 @@ func get_num_devices(dir string) uint64 {
 	}
 }
 
-func get_device_description(i int, dir string) (string, uint64, string) {
+// getDeviceDescription returns name, driver type and hwid for a given device
+func getDeviceDescription(i int, dir string) (string, uint64, string) {
 	var t_ uint64
 	var b1 [512]byte
 	var b2 [512]byte
@@ -296,3 +317,35 @@ func getLevel(type_, i int) float32 {
 	}
 	return val
 }
+
+// getMidiMessage gets midi channel, pitch and velocity for a single midi input
+func getMidiMessage() bool {
+	var midi = newMidi()
+	var b1 [1024]byte
+	res, _, _ := vmGetMidiMessage.Call(
+		uintptr(unsafe.Pointer(&b1[0])),
+		uintptr(1024),
+	)
+	x := int(res)
+	if x < 0 {
+		err := fmt.Errorf("VBVMR_GetMidiMessage returned %d", res)
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	msg := bytes.Trim(b1[:], "\x00")
+	if len(msg) > 0 {
+		for i := 0; i < len(msg)%3; i++ {
+			msg = append(msg, 0)
+		}
+
+		for i := 0; i < len(msg); i += 3 {
+			var ch = int(msg[i])
+			var pitch = int(msg[i+1])
+			var vel = int(msg[i+2])
+			midi.channel = ch
+			midi.current = pitch
+			midi.cache[pitch] = vel
+		}
+	}
+	return len(msg) > 0
+}

bus.go

@@ -2,9 +2,11 @@ package voicemeeter
 
 import (
 	"fmt"
+	"time"
 )
 
-type t_bus interface {
+// iBus defines the interface bus types must satisfy
+type iBus interface {
 	String() string
 	GetMute() bool
 	SetMute(val bool)
@@ -16,8 +18,10 @@ type t_bus interface {
 	SetLabel(val string)
 	GetGain() float64
 	SetGain(val float32)
-	Mode() t_busMode
+	Mode() iBusMode
 	Levels() *levels
+	FadeTo(target float32, time_ int)
+	FadeBy(change float32, time_ int)
 }
 
 // bus represents a bus channel
@@ -78,25 +82,39 @@ func (b *bus) SetGain(val float32) {
 }
 
 // Mode returns address of a busMode struct
-func (b *bus) Mode() t_busMode {
+func (b *bus) Mode() iBusMode {
 	return &b.mode
 }
 
-// Levels returns the gainlayer field
+// Levels returns the levels field
 func (b *bus) Levels() *levels {
 	return &b.levels
 }
 
+// FadeTo sets the value of gain to target over at time interval of time_
+func (b *bus) FadeTo(target float32, time_ int) {
+	b.setter_string("FadeTo", fmt.Sprintf("(\"%f\", %d)", target, time_))
+	time.Sleep(time.Millisecond)
+}
+
+// FadeBy adjusts the value of gain by change over a time interval of time_
+func (b *bus) FadeBy(change float32, time_ int) {
+	b.setter_string("FadeBy", fmt.Sprintf("(\"%f\", %d)", change, time_))
+	time.Sleep(time.Millisecond)
+}
+
+//physicalBus represents a single physical bus
 type physicalBus struct {
 	bus
 }
 
-func newPhysicalBus(i int, k *kind) t_bus {
+// newPhysicalBus returns a physicalBus type cast to an iBus
+func newPhysicalBus(i int, k *kind) iBus {
 	b := newBusMode(i)
 	l := newBusLevels(i, k)
 	pb := physicalBus{bus{iRemote{fmt.Sprintf("bus[%d]", i), i}, b, l}}
 
-	return t_bus(&pb)
+	return iBus(&pb)
 }
 
 // String implements the fmt.stringer interface
@@ -104,15 +122,17 @@ func (p *physicalBus) String() string {
 	return fmt.Sprintf("PhysicalBus%d", p.index)
 }
 
+//virtualBus represents a single virtual bus
 type virtualBus struct {
 	bus
 }
 
-func newVirtualBus(i int, k *kind) t_bus {
+// newVirtualBus returns a virtualBus type cast to an iBus
+func newVirtualBus(i int, k *kind) iBus {
 	b := newBusMode(i)
 	l := newBusLevels(i, k)
 	vb := virtualBus{bus{iRemote{fmt.Sprintf("bus[%d]", i), i}, b, l}}
-	return t_bus(&vb)
+	return iBus(&vb)
 }
 
 // String implements the fmt.stringer interface
@@ -120,7 +140,8 @@ func (v *virtualBus) String() string {
 	return fmt.Sprintf("VirtualBus%d", v.index)
 }
 
-type t_busMode interface {
+// iBusMode defines the interface busMode type must satisfy
+type iBusMode interface {
 	SetNormal(val bool)
 	GetNormal() bool
 	SetAmix(val bool)
@@ -147,119 +168,147 @@ type t_busMode interface {
 	GetRearOnly() bool
 }
 
+// busMode offers methods for getting/setting bus mode states
 type busMode struct {
 	iRemote
 }
 
+// newBusMode returns a busMode struct
 func newBusMode(i int) busMode {
 	return busMode{iRemote{fmt.Sprintf("bus[%d].mode", i), i}}
 }
 
-func (bm *busMode) SetNormal(val bool) {
+// GetNormal gets the value of the Mode.Normal parameter
-	bm.setter_bool("Normal", val)
-}
-
 func (bm *busMode) GetNormal() bool {
 	return bm.getter_bool("Normal")
 }
 
-func (bm *busMode) SetAmix(val bool) {
+// SetNormal sets the value of the Mode.Normal parameter
-	bm.setter_bool("Amix", val)
+func (bm *busMode) SetNormal(val bool) {
+	bm.setter_bool("Normal", val)
 }
 
+// GetAmix gets the value of the Mode.Amix parameter
 func (bm *busMode) GetAmix() bool {
 	return bm.getter_bool("Amix")
 }
 
-func (bm *busMode) SetBmix(val bool) {
+// SetAmix sets the value of the Mode.Amix parameter
-	bm.setter_bool("Bmix", val)
+func (bm *busMode) SetAmix(val bool) {
+	bm.setter_bool("Amix", val)
 }
 
+// GetBmix gets the value of the Mode.Bmix parameter
 func (bm *busMode) GetBmix() bool {
 	return bm.getter_bool("Bmix")
 }
 
-func (bm *busMode) SetRepeat(val bool) {
+// SetBmix sets the value of the Mode.Bmix parameter
-	bm.setter_bool("Repeat", val)
+func (bm *busMode) SetBmix(val bool) {
+	bm.setter_bool("Bmix", val)
 }
 
+// GetRepeat gets the value of the Mode.Repeat parameter
 func (bm *busMode) GetRepeat() bool {
 	return bm.getter_bool("Repeat")
 }
 
-func (bm *busMode) SetComposite(val bool) {
+// SetRepeat sets the value of the Mode.Repeat parameter
-	bm.setter_bool("Composite", val)
+func (bm *busMode) SetRepeat(val bool) {
+	bm.setter_bool("Repeat", val)
 }
 
+// GetComposite gets the value of the Mode.Composite parameter
 func (bm *busMode) GetComposite() bool {
 	return bm.getter_bool("Composite")
 }
 
-func (bm *busMode) SetTvMix(val bool) {
+// SetComposite sets the value of the Mode.Composite parameter
-	bm.setter_bool("TvMix", val)
+func (bm *busMode) SetComposite(val bool) {
+	bm.setter_bool("Composite", val)
 }
 
+// GetTvMix gets the value of the Mode.TvMix parameter
 func (bm *busMode) GetTvMix() bool {
 	return bm.getter_bool("TvMix")
 }
 
-func (bm *busMode) SetUpMix21(val bool) {
+// SetTvMix sets the value of the Mode.TvMix parameter
-	bm.setter_bool("UpMix21", val)
+func (bm *busMode) SetTvMix(val bool) {
+	bm.setter_bool("TvMix", val)
 }
 
+// GetUpMix21 gets the value of the Mode.UpMix21 parameter
 func (bm *busMode) GetUpMix21() bool {
 	return bm.getter_bool("UpMix21")
 }
 
-func (bm *busMode) SetUpMix41(val bool) {
+// SetUpMix21 sets the value of the Mode.UpMix21 parameter
-	bm.setter_bool("UpMix41", val)
+func (bm *busMode) SetUpMix21(val bool) {
+	bm.setter_bool("UpMix21", val)
 }
 
+// GetUpMix41 gets the value of the Mode.UpMix41 parameter
 func (bm *busMode) GetUpMix41() bool {
 	return bm.getter_bool("UpMix41")
 }
 
-func (bm *busMode) SetUpMix61(val bool) {
+// SetUpMix41 sets the value of the Mode.UpMix41 parameter
-	bm.setter_bool("UpMix61", val)
+func (bm *busMode) SetUpMix41(val bool) {
+	bm.setter_bool("UpMix41", val)
 }
 
+// GetUpMix61 gets the value of the Mode.UpMix61 parameter
 func (bm *busMode) GetUpMix61() bool {
 	return bm.getter_bool("UpMix61")
 }
 
-func (bm *busMode) SetCenterOnly(val bool) {
+// SetUpMix61 sets the value of the Mode.UpMix61 parameter
-	bm.setter_bool("CenterOnly", val)
+func (bm *busMode) SetUpMix61(val bool) {
+	bm.setter_bool("UpMix61", val)
 }
 
+// GetCenterOnly gets the value of the Mode.CenterOnly parameter
 func (bm *busMode) GetCenterOnly() bool {
 	return bm.getter_bool("CenterOnly")
 }
 
-func (bm *busMode) SetLfeOnly(val bool) {
+// SetCenterOnly sets the value of the Mode.CenterOnly parameter
-	bm.setter_bool("LfeOnly", val)
+func (bm *busMode) SetCenterOnly(val bool) {
+	bm.setter_bool("CenterOnly", val)
 }
 
+// GetLfeOnly gets the value of the Mode.LFE parameter
 func (bm *busMode) GetLfeOnly() bool {
 	return bm.getter_bool("LfeOnly")
 }
 
-func (bm *busMode) SetRearOnly(val bool) {
+// SetLfeOnly sets the value of the Mode.LFE parameter
-	bm.setter_bool("RearOnly", val)
+func (bm *busMode) SetLfeOnly(val bool) {
+	bm.setter_bool("LfeOnly", val)
 }
 
+// GetRearOnly gets the value of the Mode.RearOnly parameter
 func (bm *busMode) GetRearOnly() bool {
 	return bm.getter_bool("RearOnly")
 }
 
-func newBusLevels(i int, k *kind) levels {
+// SetRearOnly sets the value of the Mode.RearOnly parameter
-	init := i * 8
+func (bm *busMode) SetRearOnly(val bool) {
-	return levels{iRemote{fmt.Sprintf("bus[%d]", i), i}, k, init, 8}
+	bm.setter_bool("RearOnly", val)
 }
 
+// newBusLevels represents the levels field for a channel
+func newBusLevels(i int, k *kind) levels {
+	init := i * 8
+	return levels{iRemote{fmt.Sprintf("bus[%d]", i), i}, k, init, 8, "bus"}
+}
+
+// All returns the level values for a bus
 func (l *levels) All() []float32 {
 	var levels []float32
 	for i := l.init; i < l.init+l.offset; i++ {
-		levels = append(levels, l.convertLevel(getLevel(3, i)))
+		levels = append(levels, convertLevel(_levelCache.busLevels[i]))
 	}
 	return levels
 }

button.go

@@ -2,7 +2,7 @@ package voicemeeter
 
 import "fmt"
 
-// custom strip type, struct forwarding channel
+// button represents a single macrobuttton
 type button struct {
 	index int
 }

command.go

@@ -1,9 +1,11 @@
 package voicemeeter
 
+//command represents command (action) type parameters
 type command struct {
 	iRemote
 }
 
+// newCommand returns a pointer to a command type
 func newCommand() *command {
 	return &command{iRemote{"command", 0}}
 }
@@ -29,7 +31,6 @@ func (c *command) Restart() {
 }
 
 // Lock locks or unlocks the Voiceemeter GUI
-// it accepts a boolean value
 func (c *command) Lock(val bool) {
 	var value float32
 	if val {

device.go

@@ -13,16 +13,16 @@ func newDevice() *device {
 
 // Ins returns the total number of physical input devices
 func (d *device) Ins() int {
-	return int(get_num_devices("in"))
+	return int(getNumDevices("in"))
 }
 
 // Ins returns the total number of physical input devices
 func (d *device) Outs() int {
-	return int(get_num_devices("out"))
+	return int(getNumDevices("out"))
 }
 
 func (d *device) Input(i int) devDesc {
-	n, t_, id := get_device_description(i, "in")
+	n, t_, id := getDeviceDescription(i, "in")
 	vals := map[uint64]string{
 		1: "mme",
 		3: "wdm",
@@ -33,7 +33,7 @@ func (d *device) Input(i int) devDesc {
 }
 
 func (d *device) Output(i int) devDesc {
-	n, t_, id := get_device_description(i, "out")
+	n, t_, id := getDeviceDescription(i, "out")
 	vals := map[uint64]string{
 		1: "mme",
 		3: "wdm",

examples/obs/go.mod

@@ -0,0 +1,16 @@
+module main
+
+go 1.18
+
+require (
+	github.com/andreykaipov/goobs v0.10.0
+	github.com/onyx-and-iris/voicemeeter-api-go v1.4.1
+)
+
+require (
+	github.com/buger/jsonparser v1.1.1 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/hashicorp/logutils v1.0.0 // indirect
+	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d // indirect
+	golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d // indirect
+)

examples/obs/go.sum

@@ -0,0 +1,18 @@
+github.com/andreykaipov/goobs v0.10.0 h1:wa4CxbYu/NqwUmx5E4/baDqYRYEmfHwg2T23RAg3jlU=
+github.com/andreykaipov/goobs v0.10.0/go.mod h1:EqG73Uu/4npyhXIWWszgRelNkEeIz+d0slUT6NKWYs4=
+github.com/buger/jsonparser v1.1.1 h1:2PnMjfWD7wBILjqQbt530v576A/cAbQvEW9gGIpYMUs=
+github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/hashicorp/logutils v1.0.0 h1:dLEQVugN8vlakKOUE3ihGLTZJRB4j+M2cdTm/ORI65Y=
+github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
+github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d h1:VhgPp6v9qf9Agr/56bj7Y/xa04UccTW04VP0Qed4vnQ=
+github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d/go.mod h1:YUTz3bUH2ZwIWBy3CJBeOBEugqcmXREj14T+iG/4k4U=
+github.com/onyx-and-iris/voicemeeter-api-go v1.4.1 h1:2vGaRGCPwN9PlWspbdkDelsfxWHHkZqxozkd6FOcl28=
+github.com/onyx-and-iris/voicemeeter-api-go v1.4.1/go.mod h1:zAdBhHXQ9n37CUbLizbOPmAutyZI8Ncqeu5e9u1Fy14=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d h1:/m5NbqQelATgoSPVC2Z23sR4kVNokFwDDyWh/3rGY+I=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

examples/obs/main.go

@@ -0,0 +1,78 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+
+	"github.com/andreykaipov/goobs"
+	"github.com/andreykaipov/goobs/api/events"
+)
+
+func onStart(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(true)
+	vm.Strip[1].SetB1(true)
+	vm.Strip[2].SetB1(true)
+}
+
+func onBrb(vm *voicemeeter.Remote) {
+	vm.Strip[7].FadeTo(0, 500)
+	vm.Bus[0].SetMute(true)
+}
+
+func onLive(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(false)
+	vm.Strip[7].FadeTo(-6, 500)
+	vm.Strip[7].SetA3(true)
+	vm.Vban.InStream[0].SetOn(true)
+}
+
+func onEnd(vm *voicemeeter.Remote) {
+	vm.Strip[0].SetMute(true)
+	vm.Strip[1].SetMute(true)
+	vm.Strip[1].SetB1(false)
+	vm.Strip[2].SetMute(true)
+	vm.Strip[2].SetB1(false)
+	vm.Vban.InStream[0].SetOn(false)
+}
+
+func main() {
+	vm, err := voicemeeter.NewRemote("potato")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	vm.Login()
+
+	obs, err := goobs.New("localhost:4455", goobs.WithPassword("mystrongpass"))
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer obs.Disconnect()
+
+	version, _ := obs.General.GetVersion()
+	fmt.Printf("OBS Studio version: %s\n", version.ObsVersion)
+	fmt.Printf("Websocket server version: %s\n", version.ObsWebSocketVersion)
+
+	go obs.Listen(func(event any) {
+		switch e := event.(type) {
+		case *events.CurrentProgramSceneChanged:
+			fmt.Printf("Switched to scene %s\n", e.SceneName)
+			switch e.SceneName {
+			case "START":
+				onStart(vm)
+			case "BRB":
+				onBrb(vm)
+			case "LIVE":
+				onLive(vm)
+			case "END":
+				onEnd(vm)
+			}
+		}
+	})
+
+	time.Sleep(30 * time.Second)
+}

examples/observer/main.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go"
+)
+
+type observer struct {
+	vm *voicemeeter.Remote
+}
+
+func (o observer) Register() {
+	o.vm.Register(o)
+}
+
+func (o observer) Deregister() {
+	o.vm.Deregister(o)
+}
+
+func (o observer) OnUpdate(subject string) {
+	if subject == "pdirty" {
+		fmt.Println("pdirty!")
+	} else if subject == "mdirty" {
+		fmt.Println("mdirty!")
+	} else if subject == "midi" {
+		var current = o.vm.Midi.Current()
+		var val = o.vm.Midi.Get(current)
+		fmt.Printf("Value of midi button %d: %d\n", current, val)
+	} else if subject == "ldirty" {
+		fmt.Printf("%v %v %v %v %v %v %v %v\n",
+			o.vm.Bus[0].Levels().IsDirty(),
+			o.vm.Bus[1].Levels().IsDirty(),
+			o.vm.Bus[2].Levels().IsDirty(),
+			o.vm.Bus[3].Levels().IsDirty(),
+			o.vm.Bus[4].Levels().IsDirty(),
+			o.vm.Bus[5].Levels().IsDirty(),
+			o.vm.Bus[6].Levels().IsDirty(),
+			o.vm.Bus[7].Levels().IsDirty(),
+		)
+	}
+}
+
+func main() {
+	vm, err := voicemeeter.NewRemote("potato")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	vm.Login()
+	// enable level updates (disabled by default)
+	vm.EventAdd("ldirty")
+
+	o := observer{vm}
+	o.Register()
+	time.Sleep(30 * time.Second)
+	o.Deregister()
+}

examples/observer/observer.go

@@ -1,38 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/onyx-and-iris/voicemeeter-api-go/voicemeeter"
-)
-
-type observer struct {
-	i int
-}
-
-func (o observer) OnUpdate(subject string) {
-	fmt.Println(o.i, subject)
-}
-
-func main() {
-	vmRem := voicemeeter.GetRemote("banana")
-	vmRem.Login()
-
-	o := observer{1}
-	o2 := observer{2}
-	o3 := observer{3}
-	o4 := observer{4}
-	vmRem.Register(o)
-	vmRem.Register(o2)
-	vmRem.Register(o3)
-	vmRem.Register(o4)
-
-	time.Sleep(5 * time.Second)
-
-	vmRem.Deregister(o2)
-
-	time.Sleep(5 * time.Second)
-
-	vmRem.Logout()
-}

go.mod

@@ -2,9 +2,14 @@ module github.com/onyx-and-iris/voicemeeter-api-go
 
 go 1.18
 
+retract (
+	// package files moved into root of repository
+	[v1.0.0, v1.1.0]
+)
+
 require (
-	github.com/stretchr/testify v1.7.5
+	github.com/stretchr/testify v1.8.0
-	golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664
+	golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d
 )
 
 require (

go.sum

@@ -6,10 +6,10 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.5 h1:s5PTfem8p8EbKQOctVV53k6jCJt3UX4IEJzwh+C324Q=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
-github.com/stretchr/testify v1.7.5/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664 h1:wEZYwx+kK+KlZ0hpvP2Ls1Xr4+RWnlzGFwPP0aiDjIU=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d h1:/m5NbqQelATgoSPVC2Z23sR4kVNokFwDDyWh/3rGY+I=
-golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220708085239-5a0f0661e09d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

helper_test.go

@@ -0,0 +1,29 @@
+package voicemeeter
+
+import (
+	"log"
+	"os"
+	"testing"
+	"time"
+)
+
+var (
+	vm, err = NewRemote("potato")
+)
+
+func TestMain(m *testing.M) {
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	vm.Login()
+	code := m.Run()
+	vm.Logout()
+	os.Exit(code)
+}
+
+func sync() {
+	time.Sleep(30 * time.Millisecond)
+	for vm.Pdirty() || vm.Mdirty() {
+	}
+}

iremote.go

@@ -2,15 +2,16 @@ package voicemeeter
 
 import (
 	"fmt"
-	"math"
 )
 
-// iRemote provides a set of common forwarding methods
+// iRemote provides an interface between higher methods and lower functions
+// expected to be embedded
 type iRemote struct {
 	_identifier string
 	index       int
 }
 
+// identifier returns a string identifier
 func (ir *iRemote) identifier() string {
 	return ir._identifier
 }
@@ -68,18 +69,3 @@ func (ir *iRemote) setter_string(p, v string) {
 	param := fmt.Sprintf("%s.%s", ir.identifier(), p)
 	setParameterString(param, v)
 }
-
-type levels struct {
-	iRemote
-	k      *kind
-	init   int
-	offset int
-}
-
-func (l *levels) convertLevel(i float32) float32 {
-	if i > 0 {
-		val := 20 * math.Log10(float64(i))
-		return float32(val)
-	}
-	return -200.0
-}

kinds.go

@@ -9,25 +9,25 @@ var basic, banana, potato *kind
 
 // A kind represents a Voicemeeter kinds layout
 type kind struct {
-	name                                              string
+	Name                                              string
-	physIn, virtIn, physOut, virtOut, vbanIn, vbanOut int
+	PhysIn, VirtIn, PhysOut, VirtOut, VbanIn, VbanOut int
 }
 
 // numStrip returns the total number of strips for a kind
-func (k *kind) numStrip() int {
+func (k *kind) NumStrip() int {
-	n := k.physIn + k.virtIn
+	n := k.PhysIn + k.VirtIn
 	return n
 }
 
 // numBus returns the total number of buses for a kind
-func (k *kind) numBus() int {
+func (k *kind) NumBus() int {
-	n := k.physOut + k.virtOut
+	n := k.PhysOut + k.VirtOut
 	return n
 }
 
 // String implements the fmt.stringer interface
 func (k *kind) String() string {
-	return fmt.Sprintf("%s%s", strings.ToUpper(k.name[:1]), k.name[1:])
+	return fmt.Sprintf("%s%s", strings.ToUpper(k.Name[:1]), k.Name[1:])
 }
 
 // newBasicKind returns a basic kind struct address

levels.go

@@ -0,0 +1,46 @@
+package voicemeeter
+
+// levels represents the levels field for a channel
+type levels struct {
+	iRemote
+	k      *kind
+	init   int
+	offset int
+	id     string
+}
+
+// returns true if any levels value for a strip/bus have been updated
+func (l *levels) IsDirty() bool {
+	var vals []bool
+	if l.id == "strip" {
+		vals = _levelCache.stripComp[l.init : l.init+l.offset]
+	} else if l.id == "bus" {
+		vals = _levelCache.busComp[l.init : l.init+l.offset]
+	}
+	return !allTrue(vals, l.offset)
+}
+
+var _levelCache *levelCache
+
+// levelCache defines level slices used by the pooler to track updates
+type levelCache struct {
+	stripMode       int
+	stripLevels     []float32
+	busLevels       []float32
+	stripLevelsBuff []float32
+	busLevelsBuff   []float32
+	stripComp       []bool
+	busComp         []bool
+}
+
+// newLevelCache returns a levelCache struct address
+func newLevelCache(k *kind) *levelCache {
+	stripLevels := make([]float32, (2*k.PhysIn)+(8*k.VirtIn))
+	busLevels := make([]float32, 8*k.NumBus())
+	stripComp := make([]bool, (2*k.PhysIn)+(8*k.VirtIn))
+	busComp := make([]bool, 8*k.NumBus())
+	if _levelCache == nil {
+		_levelCache = &levelCache{stripMode: 0, stripLevels: stripLevels, busLevels: busLevels, stripComp: stripComp, busComp: busComp}
+	}
+	return _levelCache
+}

midi.go

@@ -0,0 +1,28 @@
+package voicemeeter
+
+var midi *midi_t
+
+type midi_t struct {
+	channel int
+	current int
+	cache   map[int]int
+}
+
+func newMidi() *midi_t {
+	if midi == nil {
+		midi = &midi_t{0, 0, map[int]int{}}
+	}
+	return midi
+}
+
+func (m *midi_t) Channel() int {
+	return m.channel
+}
+
+func (m *midi_t) Current() int {
+	return m.current
+}
+
+func (m *midi_t) Get(key int) int {
+	return m.cache[key]
+}

outputs.go

@@ -1,6 +1,7 @@
 package voicemeeter
 
-type t_outputs interface {
+// iOutputs defines the interface outputs type must satisfy
+type iOutputs interface {
 	GetA1() bool
 	SetA1(val bool)
 	GetA2() bool
@@ -19,10 +20,13 @@ type t_outputs interface {
 	SetB3(val bool)
 }
 
+// outputs represents the outputs field (A1 - A5, B1 - B3)
+// expected to be embedded
 type outputs struct {
 	iRemote
 }
 
+// newOutputs returns an outputs type
 func newOutputs(id string, i int) outputs {
 	o := outputs{iRemote{id, i}}
 	return o

path.go

@@ -3,7 +3,7 @@ package voicemeeter
 import (
 	"errors"
 	"fmt"
-	"os"
+	"log"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -49,8 +49,7 @@ func dllPath() (string, error) {
 func getDllPath() string {
 	path, err := dllPath()
 	if err != nil {
-		fmt.Println(err)
+		log.Fatal(err)
-		os.Exit(1)
 	}
 	return path
 }

publisher.go

@@ -0,0 +1,140 @@
+package voicemeeter
+
+import (
+	"time"
+)
+
+// observer defines the interface any registered observers must satisfy
+type observer interface {
+	OnUpdate(subject string)
+}
+
+// publisher defines methods that support observers
+type publisher struct {
+	observerList []observer
+}
+
+// Register adds an observer to observerList
+func (p *publisher) Register(o observer) {
+	p.observerList = append(p.observerList, o)
+}
+
+// Deregister removes an observer from observerList
+func (p *publisher) Deregister(o observer) {
+	var indexToRemove int
+
+	for i, observer := range p.observerList {
+		if observer == o {
+			indexToRemove = i
+			break
+		}
+	}
+
+	p.observerList = append(p.observerList[:indexToRemove], p.observerList[indexToRemove+1:]...)
+}
+
+// notify updates observers of any changes
+func (p *publisher) notify(subject string) {
+	for _, observer := range p.observerList {
+		observer.OnUpdate(subject)
+	}
+}
+
+type event struct {
+	pdirty bool
+	mdirty bool
+	midi   bool
+	ldirty bool
+}
+
+func newEvent() *event {
+	return &event{true, true, true, false}
+}
+
+func (e *event) Add(ev string) {
+	switch ev {
+	case "pdirty":
+		e.pdirty = true
+	case "mdirty":
+		e.mdirty = true
+	case "midi":
+		e.midi = true
+	case "ldirty":
+		e.ldirty = true
+	}
+}
+
+func (e *event) Remove(ev string) {
+	switch ev {
+	case "pdirty":
+		e.pdirty = false
+	case "mdirty":
+		e.mdirty = false
+	case "midi":
+		e.midi = false
+	case "ldirty":
+		e.ldirty = false
+	}
+}
+
+// pooler continuously polls the dirty paramters
+// it is expected to be run in a goroutine
+type pooler struct {
+	k     *kind
+	run   bool
+	event *event
+	publisher
+}
+
+func newPooler(k *kind) *pooler {
+	p := &pooler{
+		k:     k,
+		run:   true,
+		event: newEvent(),
+	}
+	go p.parameters()
+	go p.macrobuttons()
+	go p.midi()
+	go p.levels()
+	return p
+}
+
+func (p *pooler) parameters() {
+	for p.run {
+		if p.event.pdirty && pdirty() {
+			p.notify("pdirty")
+		}
+		time.Sleep(33 * time.Millisecond)
+	}
+}
+
+func (p *pooler) macrobuttons() {
+	for p.run {
+		if p.event.mdirty && mdirty() {
+			p.notify("mdirty")
+		}
+		time.Sleep(33 * time.Millisecond)
+	}
+}
+
+func (p *pooler) midi() {
+	for p.run {
+		if p.event.midi && getMidiMessage() {
+			p.notify("midi")
+		}
+		time.Sleep(33 * time.Millisecond)
+	}
+}
+
+func (p *pooler) levels() {
+	_levelCache = newLevelCache(p.k)
+
+	for p.run {
+		if p.event.ldirty && ldirty(p.k) {
+			update(_levelCache.stripLevels, _levelCache.stripLevelsBuff, (2*p.k.PhysIn)+(8*p.k.VirtIn))
+			update(_levelCache.busLevels, _levelCache.busLevelsBuff, 8*p.k.NumBus())
+			p.notify("ldirty")
+		}
+		time.Sleep(33 * time.Millisecond)
+	}
+}

recorder.go

@@ -1,10 +1,12 @@
 package voicemeeter
 
+// recorder represents the recorder
 type recorder struct {
 	iRemote
 	outputs
 }
 
+// newRecorder returns an address to a recorder struct
 func newRecorder() *recorder {
 	o := newOutputs("recorder", 0)
 	return &recorder{iRemote{"recorder", 0}, o}

remote.go

@@ -2,75 +2,108 @@ package voicemeeter
 
 import (
 	"fmt"
-	"os"
 )
 
-// A remote type represents the API for a kind,
+// A Remote type represents the API for a kind
-// comprised of slices representing each member
+type Remote struct {
-type remote struct {
+	Kind     *kind
-	kind     *kind
+	Strip    []iStrip
-	Strip    []t_strip
+	Bus      []iBus
-	Bus      []t_bus
 	Button   []button
 	Command  *command
 	Vban     *vban
 	Device   *device
 	Recorder *recorder
+	Midi     *midi_t
 
 	pooler *pooler
 }
 
 // String implements the fmt.stringer interface
-func (r *remote) String() string {
+func (r *Remote) String() string {
-	return fmt.Sprintf("Voicemeeter %s", r.kind)
+	return fmt.Sprintf("Voicemeeter %s", r.Kind)
 }
 
 // Login logs into the API
 // then it intializes the pooler
-func (r *remote) Login() {
+func (r *Remote) Login() {
-	r.pooler = newPooler()
+	login(r.Kind.Name)
-	login(r.kind.name)
+	r.pooler = newPooler(r.Kind)
 }
 
 // Logout logs out of the API
 // it also terminates the pooler
-func (r *remote) Logout() {
+func (r *Remote) Logout() {
 	r.pooler.run = false
-	logout()
+	logout(r.Kind.Name)
 }
 
-func (r *remote) Type() string {
+// Type returns the type of Voicemeeter (basic, banana, potato)
+func (r *Remote) Type() string {
 	return getVMType()
 }
 
-func (r *remote) Version() string {
+// Version returns the version of Voicemeeter as a string
+func (r *Remote) Version() string {
 	return getVersion()
 }
 
 // Pdirty returns true iff a parameter value has changed
-func (r *remote) Pdirty() bool {
+func (r *Remote) Pdirty() bool {
 	return pdirty()
 }
 
 // Mdirty returns true iff a macrobutton value has changed
-func (r *remote) Mdirty() bool {
+func (r *Remote) Mdirty() bool {
 	return mdirty()
 }
 
-func (r *remote) SendText(script string) {
+// Gets a float parameter value
+func (r *Remote) GetFloat(name string) float64 {
+	return getParameterFloat(name)
+}
+
+// Sets a float paramter value
+func (r *Remote) SetFloat(name string, value float32) {
+	setParameterFloat(name, value)
+}
+
+// Gets a string parameter value
+func (r *Remote) GetString(name string) string {
+	return getParameterString(name)
+}
+
+// Sets a string paramter value
+func (r *Remote) SetString(name, value string) {
+	setParameterString(name, value)
+}
+
+// SendText sets multiple parameters by script
+func (r *Remote) SendText(script string) {
 	setParametersMulti(script)
 }
 
 // Register forwards the register method to Pooler
-func (r *remote) Register(o observer) {
+func (r *Remote) Register(o observer) {
 	r.pooler.Register(o)
 }
 
-// Register forwards the deregister method to Pooler
+// Deregister forwards the deregister method to Pooler
-func (r *remote) Deregister(o observer) {
+func (r *Remote) Deregister(o observer) {
 	r.pooler.Deregister(o)
 }
 
+// EventAdd adds an event to the Pooler
+func (r *Remote) EventAdd(event string) {
+	r.pooler.event.Add(event)
+}
+
+// EventRemove removes an event from the Pooler
+func (r *Remote) EventRemove(event string) {
+	r.pooler.event.Remove(event)
+}
+
+// remoteBuilder defines the interface builder types must satisfy
 type remoteBuilder interface {
 	setKind() remoteBuilder
 	makeStrip() remoteBuilder
@@ -80,8 +113,9 @@ type remoteBuilder interface {
 	makeVban() remoteBuilder
 	makeDevice() remoteBuilder
 	makeRecorder() remoteBuilder
+	makeMidi() remoteBuilder
 	Build() remoteBuilder
-	Get() *remote
+	Get() *Remote
 }
 
 // directory is responsible for directing the genericBuilder
@@ -100,27 +134,29 @@ func (d *director) Construct() {
 }
 
 // Get forwards the Get method to the builder
-func (d *director) Get() *remote {
+func (d *director) Get() *Remote {
 	return d.builder.Get()
 }
 
+// genericBuilder represents a generic builder type
 type genericBuilder struct {
 	k *kind
-	r remote
+	r Remote
 }
 
+// setKind sets the kind for a builder of a kind
 func (b *genericBuilder) setKind() remoteBuilder {
-	b.r.kind = b.k
+	b.r.Kind = b.k
 	return b
 }
 
 // makeStrip makes a strip slice and assigns it to remote.Strip
-// []t_strip comprises of both physical and virtual strip types
+// []iStrip comprises of both physical and virtual strip types
 func (b *genericBuilder) makeStrip() remoteBuilder {
 	fmt.Println("building strip")
-	_strip := make([]t_strip, b.k.numStrip())
+	_strip := make([]iStrip, b.k.NumStrip())
-	for i := 0; i < b.k.numStrip(); i++ {
+	for i := 0; i < b.k.NumStrip(); i++ {
-		if i < b.k.physIn {
+		if i < b.k.PhysIn {
 			_strip[i] = newPhysicalStrip(i, b.k)
 		} else {
 			_strip[i] = newVirtualStrip(i, b.k)
@@ -134,9 +170,9 @@ func (b *genericBuilder) makeStrip() remoteBuilder {
 // []t_bus comprises of both physical and virtual bus types
 func (b *genericBuilder) makeBus() remoteBuilder {
 	fmt.Println("building bus")
-	_bus := make([]t_bus, b.k.numBus())
+	_bus := make([]iBus, b.k.NumBus())
-	for i := 0; i < b.k.numBus(); i++ {
+	for i := 0; i < b.k.NumBus(); i++ {
-		if i < b.k.physOut {
+		if i < b.k.PhysOut {
 			_bus[i] = newPhysicalBus(i, b.k)
 		} else {
 			_bus[i] = newVirtualBus(i, b.k)
@@ -157,85 +193,117 @@ func (b *genericBuilder) makeButton() remoteBuilder {
 	return b
 }
 
-// makeCommand makes a Command type and assigns it to remote.Command
+// makeCommand makes a command type and assigns it to remote.Command
 func (b *genericBuilder) makeCommand() remoteBuilder {
 	fmt.Println("building command")
 	b.r.Command = newCommand()
 	return b
 }
 
-// makeVban makes a Vban type and assigns it to remote.Vban
+// makeVban makes a vban type and assigns it to remote.Vban
 func (b *genericBuilder) makeVban() remoteBuilder {
 	fmt.Println("building vban")
 	b.r.Vban = newVban(b.k)
 	return b
 }
 
-// makeVban makes a Vban type and assigns it to remote.Vban
+// makeDevice makes a device type and assigns it to remote.Device
 func (b *genericBuilder) makeDevice() remoteBuilder {
 	fmt.Println("building device")
 	b.r.Device = newDevice()
 	return b
 }
 
-// makeRecorder makes a recorder type and assigns it to remote.Vban
+// makeRecorder makes a recorder type and assigns it to remote.Recorder
 func (b *genericBuilder) makeRecorder() remoteBuilder {
 	fmt.Println("building recorder")
 	b.r.Recorder = newRecorder()
 	return b
 }
 
+// makeMidi makes a midi type and assigns it to remote.Midi
+func (b *genericBuilder) makeMidi() remoteBuilder {
+	fmt.Println("building midi")
+	b.r.Midi = newMidi()
+	return b
+}
+
 // Get returns a fully constructed remote type for a kind
-func (b *genericBuilder) Get() *remote {
+func (b *genericBuilder) Get() *Remote {
 	return &b.r
 }
 
+// basicBuilder represents a builder specific to basic type
 type basicBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a basic type
 func (basb *genericBuilder) Build() remoteBuilder {
-	return basb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice()
+	return basb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeMidi()
 }
 
+// bananaBuilder represents a builder specific to banana type
 type bananaBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a banana type
 func (banb *bananaBuilder) Build() remoteBuilder {
-	return banb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice().makeRecorder()
+	return banb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeRecorder().
+		makeMidi()
 }
 
+// potatoBuilder represents a builder specific to potato type
 type potatoBuilder struct {
 	genericBuilder
 }
 
 // Build defines the steps required to build a potato type
 func (potb *potatoBuilder) Build() remoteBuilder {
-	return potb.setKind().makeStrip().makeBus().makeButton().makeCommand().makeVban().makeDevice().makeRecorder()
+	return potb.setKind().
+		makeStrip().
+		makeBus().
+		makeButton().
+		makeCommand().
+		makeVban().
+		makeDevice().
+		makeRecorder().
+		makeMidi()
 }
 
-// GetRemote returns a remote type for a kind
+// NewRemote returns a Remote type for a kind
 // this is the interface entry point
-func GetRemote(kindId string) *remote {
+func NewRemote(kindId string) (*Remote, error) {
 	_kind, ok := kindMap[kindId]
 	if !ok {
 		err := fmt.Errorf("unknown Voicemeeter kind '%s'", kindId)
-		fmt.Println(err)
+		return nil, err
-		os.Exit(1)
 	}
 
 	director := director{}
-	switch _kind.name {
+	switch _kind.Name {
 	case "basic":
-		director.SetBuilder(&basicBuilder{genericBuilder{_kind, remote{}}})
+		director.SetBuilder(&basicBuilder{genericBuilder{_kind, Remote{}}})
 	case "banana":
-		director.SetBuilder(&bananaBuilder{genericBuilder{_kind, remote{}}})
+		director.SetBuilder(&bananaBuilder{genericBuilder{_kind, Remote{}}})
 	case "potato":
-		director.SetBuilder(&potatoBuilder{genericBuilder{_kind, remote{}}})
+		director.SetBuilder(&potatoBuilder{genericBuilder{_kind, Remote{}}})
 	}
 	director.Construct()
-	return director.Get()
+	return director.Get(), nil
 }

remote_test.go

@@ -8,7 +8,7 @@ import (
 
 func TestGetBasicRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := GetRemote("basic")
+	__rem, _ := NewRemote("basic")
 	t.Run("Should return a remote basic type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -34,7 +34,7 @@ func TestGetBasicRemote(t *testing.T) {
 
 func TestGetBananaRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := GetRemote("banana")
+	__rem, _ := NewRemote("banana")
 	t.Run("Should return a remote banana type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -60,7 +60,7 @@ func TestGetBananaRemote(t *testing.T) {
 
 func TestGetPotatoRemote(t *testing.T) {
 	//t.Skip("skipping test")
-	__rem := GetRemote("potato")
+	__rem, _ := NewRemote("potato")
 	t.Run("Should return a remote basic type", func(t *testing.T) {
 		assert.NotNil(t, __rem)
 	})
@@ -83,3 +83,24 @@ func TestGetPotatoRemote(t *testing.T) {
 		assert.NotNil(t, __rem.Recorder)
 	})
 }
+
+func TestSetAndGetFloatParameter(t *testing.T) {
+	//t.Skip("skipping test")
+	var param = "strip[0].mute"
+	vm.SetFloat(param, 1)
+	sync()
+	t.Run("Should get a float parameter", func(t *testing.T) {
+		assert.Equal(t, float64(1), vm.GetFloat(param))
+	})
+}
+
+func TestSetAndGetStringParameter(t *testing.T) {
+	//t.Skip("skipping test")
+	var param = "strip[0].label"
+	var val = "test0"
+	vm.SetString(param, val)
+	sync()
+	t.Run("Should get a string parameter", func(t *testing.T) {
+		assert.Equal(t, val, vm.GetString(param))
+	})
+}

strip.go

@@ -2,9 +2,11 @@ package voicemeeter
 
 import (
 	"fmt"
+	"time"
 )
 
-type t_strip interface {
+// iStrip defines the interface bus types must satisfy
+type iStrip interface {
 	String() string
 	GetMute() bool
 	SetMute(val bool)
@@ -28,7 +30,11 @@ type t_strip interface {
 	SetAudibility(val float32)
 	GainLayer() []gainLayer
 	Levels() *levels
-	t_outputs
+	FadeTo(target float32, time_ int)
+	FadeBy(change float32, time_ int)
+	AppGain(name string, gain float32)
+	AppMute(name string, val bool)
+	iOutputs
 }
 
 // strip represents a strip channel
@@ -104,16 +110,30 @@ func (s *strip) GainLayer() []gainLayer {
 	return s.gainLayer
 }
 
-// Levels returns the gainlayer field
+// Levels returns the levels field
 func (s *strip) Levels() *levels {
 	return &s.levels
 }
 
+// FadeTo sets the value of gain to target over at time interval of time_
+func (s *strip) FadeTo(target float32, time_ int) {
+	s.setter_string("FadeTo", fmt.Sprintf("(\"%f\", %d)", target, time_))
+	time.Sleep(time.Millisecond)
+}
+
+// FadeBy adjusts the value of gain by change over a time interval of time_
+func (s *strip) FadeBy(change float32, time_ int) {
+	s.setter_string("FadeBy", fmt.Sprintf("(\"%f\", %d)", change, time_))
+	time.Sleep(time.Millisecond)
+}
+
+//physicalStrip represents a single physical strip
 type physicalStrip struct {
 	strip
 }
 
-func newPhysicalStrip(i int, k *kind) t_strip {
+// newPhysicalStrip returns a physicalStrip type cast to an iStrip
+func newPhysicalStrip(i int, k *kind) iStrip {
 	o := newOutputs(fmt.Sprintf("strip[%d]", i), i)
 	gl := make([]gainLayer, 8)
 	for j := 0; j < 8; j++ {
@@ -121,10 +141,10 @@ func newPhysicalStrip(i int, k *kind) t_strip {
 	}
 	l := newStripLevels(i, k)
 	ps := physicalStrip{strip{iRemote{fmt.Sprintf("strip[%d]", i), i}, o, gl, l}}
-	return t_strip(&ps)
+	return iStrip(&ps)
 }
 
-// implement fmt.stringer interface in fmt
+// String implements fmt.stringer interface
 func (p *physicalStrip) String() string {
 	return fmt.Sprintf("PhysicalStrip%d", p.index)
 }
@@ -169,11 +189,13 @@ func (p *physicalStrip) SetMc(val bool) {
 	panic("invalid parameter MC for physicalStrip")
 }
 
+//virtualStrip represents a single virtual strip
 type virtualStrip struct {
 	strip
 }
 
-func newVirtualStrip(i int, k *kind) t_strip {
+// newVirtualStrip returns a virtualStrip type cast to an iStrip
+func newVirtualStrip(i int, k *kind) iStrip {
 	o := newOutputs(fmt.Sprintf("strip[%d]", i), i)
 	gl := make([]gainLayer, 8)
 	for j := 0; j < 8; j++ {
@@ -181,10 +203,10 @@ func newVirtualStrip(i int, k *kind) t_strip {
 	}
 	l := newStripLevels(i, k)
 	vs := virtualStrip{strip{iRemote{fmt.Sprintf("strip[%d]", i), i}, o, gl, l}}
-	return t_strip(&vs)
+	return iStrip(&vs)
 }
 
-// implement fmt.stringer interface in fmt
+// String implements fmt.stringer interface
 func (v *virtualStrip) String() string {
 	return fmt.Sprintf("VirtualStrip%d", v.index)
 }
@@ -229,56 +251,83 @@ func (v *virtualStrip) SetAudibility(val float32) {
 	panic("invalid parameter Audibility for virtualStrip")
 }
 
+// AppGain sets the gain in db by val for the app matching name.
+func (v *strip) AppGain(name string, val float32) {
+	v.setter_string("AppGain", fmt.Sprintf("(\"%s\", %f)", name, val))
+}
+
+// AppMute sets mute state as val for the app matching name.
+func (v *strip) AppMute(name string, val bool) {
+	var value int
+	if val {
+		value = 1
+	} else {
+		value = 0
+	}
+	v.setter_string("AppMute", fmt.Sprintf("(\"%s\", %f)", name, float32(value)))
+}
+
+// gainLayer represents the 8 gainlayers for a single strip
 type gainLayer struct {
 	iRemote
 	index int
 }
 
+// newGainLayer returns a gainlayer struct
 func newGainLayer(i, j int) gainLayer {
 	return gainLayer{iRemote{fmt.Sprintf("strip[%d]", i), i}, j}
 }
 
+// Get gets the gain value for a single gainlayer
 func (gl *gainLayer) Get() float64 {
 	return gl.getter_float(fmt.Sprintf("gainlayer[%d]", gl.index))
 }
 
+// Set sets the gain value for a single gainlayer
 func (gl *gainLayer) Set(val float32) {
 	gl.setter_float(fmt.Sprintf("gainlayer[%d]", gl.index), val)
 }
 
+// newStripLevels returns a levels struct
 func newStripLevels(i int, k *kind) levels {
 	var init int
 	var os int
-	if i < k.physIn {
+	if i < k.PhysIn {
 		init = i * 2
 		os = 2
 	} else {
-		init = (k.physIn * 2) + ((i - k.physIn) * 8)
+		init = (k.PhysIn * 2) + ((i - k.PhysIn) * 8)
 		os = 8
 	}
-	return levels{iRemote{fmt.Sprintf("strip[%d]", i), i}, k, init, os}
+	return levels{iRemote{fmt.Sprintf("strip[%d]", i), i}, k, init, os, "strip"}
 }
 
+// PreFader returns the level values for this strip, PREFADER mode
 func (l *levels) PreFader() []float32 {
+	_levelCache.stripMode = 0
 	var levels []float32
 	for i := l.init; i < l.init+l.offset; i++ {
-		levels = append(levels, l.convertLevel(getLevel(0, i)))
+		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}
 	return levels
 }
 
+// PostFader returns the level values for this strip, POSTFADER mode
 func (l *levels) PostFader() []float32 {
+	_levelCache.stripMode = 1
 	var levels []float32
 	for i := l.init; i < l.init+l.offset; i++ {
-		levels = append(levels, l.convertLevel(getLevel(1, i)))
+		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}
 	return levels
 }
 
+// PostMute returns the level values for this strip, POSTMUTE mode
 func (l *levels) PostMute() []float32 {
+	_levelCache.stripMode = 2
 	var levels []float32
 	for i := l.init; i < l.init+l.offset; i++ {
-		levels = append(levels, l.convertLevel(getLevel(2, i)))
+		levels = append(levels, convertLevel(_levelCache.stripLevels[i]))
 	}
 	return levels
 }

tests/helper_test.go

@@ -1,26 +1,32 @@
 package voicemeeter_test
 
 import (
+	"log"
 	"os"
 	"testing"
 	"time"
 
-	"github.com/onyx-and-iris/voicemeeter-api-go/voicemeeter"
+	"github.com/onyx-and-iris/voicemeeter-api-go"
 )
 
 var (
-	vmRem = voicemeeter.GetRemote("potato")
+	vm, err = voicemeeter.NewRemote("potato")
 )
 
 func TestMain(m *testing.M) {
-	vmRem.Login()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer vm.Logout()
+
+	vm.Login()
 	code := m.Run()
-	vmRem.Logout()
+	vm.Logout()
 	os.Exit(code)
 }
 
 func sync() {
 	time.Sleep(30 * time.Millisecond)
-	for vmRem.Pdirty() || vmRem.Mdirty() {
+	for vm.Pdirty() || vm.Mdirty() {
 	}
 }

tests/higher_test.go

@@ -8,206 +8,206 @@ import (
 
 func TestStrip0Mute(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[0].SetMute(true)
+	vm.Strip[0].SetMute(true)
 	sync()
 	t.Run("Should return true when SetMute(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[0].GetMute())
+		assert.True(t, vm.Strip[0].GetMute())
 	})
 
-	vmRem.Strip[0].SetMute(false)
+	vm.Strip[0].SetMute(false)
 	sync()
 	t.Run("Should return false when SetMute(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[0].GetMute())
+		assert.False(t, vm.Strip[0].GetMute())
 	})
 }
 
 func TestStrip3A1(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[3].SetA1(true)
+	vm.Strip[3].SetA1(true)
 	sync()
 	t.Run("Should return true when SetA1(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[3].GetA1())
+		assert.True(t, vm.Strip[3].GetA1())
 	})
 
-	vmRem.Strip[3].SetA1(false)
+	vm.Strip[3].SetA1(false)
 	sync()
 	t.Run("Should return false when SetA1(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[3].GetA1())
+		assert.False(t, vm.Strip[3].GetA1())
 	})
 }
 
 func TestStrip2Limit(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[2].SetLimit(-8)
+	vm.Strip[2].SetLimit(-8)
 	sync()
 	t.Run("Should return -8 when SetLimit(-8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GetLimit(), -8)
+		assert.Equal(t, vm.Strip[2].GetLimit(), -8)
 	})
 
-	vmRem.Strip[2].SetLimit(-32)
+	vm.Strip[2].SetLimit(-32)
 	sync()
 	t.Run("Should return -32 when SetLimit(-8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GetLimit(), -32)
+		assert.Equal(t, vm.Strip[2].GetLimit(), -32)
 	})
 
 }
 
 func TestStrip4Label(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetLabel("test0")
+	vm.Strip[4].SetLabel("test0")
 	sync()
 	t.Run("Should return test0 when SetLimit('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Strip[4].GetLabel())
+		assert.Equal(t, "test0", vm.Strip[4].GetLabel())
 	})
 
-	vmRem.Strip[4].SetLabel("test1")
+	vm.Strip[4].SetLabel("test1")
 	sync()
 	t.Run("Should return test1 when SetLimit('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Strip[4].GetLabel())
+		assert.Equal(t, "test1", vm.Strip[4].GetLabel())
 	})
 }
 
 func TestStrip5Gain(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetGain(-20.8)
+	vm.Strip[4].SetGain(-20.8)
 	sync()
 	t.Run("Should return -20.8 when SetGain(-20.8)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetGain(), -20.8)
+		assert.Equal(t, vm.Strip[4].GetGain(), -20.8)
 	})
 
-	vmRem.Strip[4].SetGain(-3.6)
+	vm.Strip[4].SetGain(-3.6)
 	sync()
 	t.Run("Should return -3.6 when SetGain(-3.6)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetGain(), -3.6)
+		assert.Equal(t, vm.Strip[4].GetGain(), -3.6)
 	})
 }
 
 func TestStrip3Comp(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[4].SetComp(8.1)
+	vm.Strip[4].SetComp(8.1)
 	sync()
 	t.Run("Should return 8.1 when SetGain(8.1)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetComp(), 8.1)
+		assert.Equal(t, vm.Strip[4].GetComp(), 8.1)
 	})
 
-	vmRem.Strip[4].SetComp(1.6)
+	vm.Strip[4].SetComp(1.6)
 	sync()
 	t.Run("Should return 1.6 when SetGain(1.6)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[4].GetComp(), 1.6)
+		assert.Equal(t, vm.Strip[4].GetComp(), 1.6)
 	})
 }
 
 func TestStrip5Mc(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[5].SetMc(true)
+	vm.Strip[5].SetMc(true)
 	sync()
 	t.Run("Should return true when SetMc(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Strip[5].GetMc())
+		assert.True(t, vm.Strip[5].GetMc())
 	})
 
-	vmRem.Strip[5].SetMc(false)
+	vm.Strip[5].SetMc(false)
 	sync()
 	t.Run("Should return false when SetMc(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Strip[5].GetMc())
+		assert.False(t, vm.Strip[5].GetMc())
 	})
 }
 
 func TestStrip2GainLayer3(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Strip[2].GainLayer()[3].Set(-18.3)
+	vm.Strip[2].GainLayer()[3].Set(-18.3)
 	sync()
 	t.Run("Should return -18.3 when SetMc(true)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GainLayer()[3].Get(), -18.3)
+		assert.Equal(t, vm.Strip[2].GainLayer()[3].Get(), -18.3)
 	})
 
-	vmRem.Strip[2].GainLayer()[3].Set(-25.6)
+	vm.Strip[2].GainLayer()[3].Set(-25.6)
 	sync()
 	t.Run("Should return -25.6 when SetMc(true)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Strip[2].GainLayer()[3].Get(), -25.6)
+		assert.Equal(t, vm.Strip[2].GainLayer()[3].Get(), -25.6)
 	})
 }
 
 func TestBus3Eq(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[3].SetEq(true)
+	vm.Bus[3].SetEq(true)
 	sync()
 	t.Run("Should return true when SetEq(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Bus[3].GetEq())
+		assert.True(t, vm.Bus[3].GetEq())
 	})
 
-	vmRem.Bus[3].SetEq(false)
+	vm.Bus[3].SetEq(false)
 	sync()
 	t.Run("Should return false when SetEq(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Bus[3].GetEq())
+		assert.False(t, vm.Bus[3].GetEq())
 	})
 }
 
 func TestBus4Label(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[4].SetLabel("test0")
+	vm.Bus[4].SetLabel("test0")
 	sync()
 	t.Run("Should return test0 when SetEq('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Bus[4].GetLabel())
+		assert.Equal(t, "test0", vm.Bus[4].GetLabel())
 	})
 
-	vmRem.Bus[4].SetLabel("test1")
+	vm.Bus[4].SetLabel("test1")
 	sync()
 	t.Run("Should return test1 when SetEq('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Bus[4].GetLabel())
+		assert.Equal(t, "test1", vm.Bus[4].GetLabel())
 	})
 }
 
 func TestBus3ModeAmix(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Bus[3].Mode().SetAmix(true)
+	vm.Bus[3].Mode().SetAmix(true)
 	sync()
 	t.Run("Should return true when Mode().SetAmix(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Bus[3].Mode().GetAmix())
+		assert.True(t, vm.Bus[3].Mode().GetAmix())
 	})
 }
 
 func TestVbanInStream0On(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.InStream[0].SetOn(true)
+	vm.Vban.InStream[0].SetOn(true)
 	sync()
 	t.Run("Should return true when SetOn(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Vban.InStream[0].GetOn())
+		assert.True(t, vm.Vban.InStream[0].GetOn())
 	})
 
-	vmRem.Vban.InStream[0].SetOn(false)
+	vm.Vban.InStream[0].SetOn(false)
 	sync()
 	t.Run("Should return false when SetOn(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Vban.InStream[0].GetOn())
+		assert.False(t, vm.Vban.InStream[0].GetOn())
 	})
 }
 
 func TestVbanOutStream6On(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.OutStream[6].SetOn(true)
+	vm.Vban.OutStream[6].SetOn(true)
 	sync()
 	t.Run("Should return true when SetOn(true)", func(t *testing.T) {
-		assert.True(t, vmRem.Vban.OutStream[6].GetOn())
+		assert.True(t, vm.Vban.OutStream[6].GetOn())
 	})
 
-	vmRem.Vban.OutStream[6].SetOn(false)
+	vm.Vban.OutStream[6].SetOn(false)
 	sync()
 	t.Run("Should return false when SetOn(false)", func(t *testing.T) {
-		assert.False(t, vmRem.Vban.OutStream[6].GetOn())
+		assert.False(t, vm.Vban.OutStream[6].GetOn())
 	})
 }
 
 func TestVbanOutStream3Name(t *testing.T) {
 	t.Skip("skipping test")
-	vmRem.Vban.OutStream[3].SetName("test0")
+	vm.Vban.OutStream[3].SetName("test0")
 	sync()
 	t.Run("Should return test0 when SetName('test0')", func(t *testing.T) {
-		assert.Equal(t, "test0", vmRem.Vban.OutStream[3].GetName())
+		assert.Equal(t, "test0", vm.Vban.OutStream[3].GetName())
 	})
 
-	vmRem.Vban.OutStream[3].SetName("test1")
+	vm.Vban.OutStream[3].SetName("test1")
 	sync()
 	t.Run("Should return test1 when SetName('test1')", func(t *testing.T) {
-		assert.Equal(t, "test1", vmRem.Vban.OutStream[3].GetName())
+		assert.Equal(t, "test1", vm.Vban.OutStream[3].GetName())
 	})
 }
 
@@ -219,21 +219,21 @@ func TestVbanInStream4Bit(t *testing.T) {
 				t.Error("expected panic")
 			}
 		}()
-		vmRem.Vban.InStream[4].SetBit(16)
+		vm.Vban.InStream[4].SetBit(16)
 	})
 }
 
 func TestVbanOutStream4Bit(t *testing.T) {
 	//t.Skip("skipping test")
-	vmRem.Vban.OutStream[4].SetBit(16)
+	vm.Vban.OutStream[4].SetBit(16)
 	sync()
 	t.Run("Should return 16 when SetBit(16)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Vban.OutStream[4].GetBit(), 16)
+		assert.Equal(t, vm.Vban.OutStream[4].GetBit(), 16)
 	})
 
-	vmRem.Vban.OutStream[4].SetBit(24)
+	vm.Vban.OutStream[4].SetBit(24)
 	sync()
 	t.Run("Should return 24 when SetBit(24)", func(t *testing.T) {
-		assert.Equal(t, vmRem.Vban.OutStream[4].GetBit(), 24)
+		assert.Equal(t, vm.Vban.OutStream[4].GetBit(), 24)
 	})
 }

tests/pre-commit.ps1

@@ -1,6 +1,6 @@
 Function RunTests {
+	$run_int_tests = "go clean -testcache; go test -v ."
 	$run_ext_tests = "go clean -testcache; go test -v .\tests\"
-	$run_int_tests = "go clean -testcache; go test -v .\voicemeeter\"
 
 	Invoke-Expression $run_ext_tests
 	Invoke-Expression $run_int_tests

util.go

@@ -0,0 +1,35 @@
+package voicemeeter
+
+import "math"
+
+// allTrue accepts a boolean slice and evaluates if all elements are True
+func allTrue(s []bool, sz int) bool {
+	for i := 0; i < sz; i++ {
+		if !s[i] {
+			return false
+		}
+	}
+	return true
+}
+
+// update copies the contents of one float slice into another
+func update(s1 []float32, s2 []float32, sz int) {
+	for i := 0; i < sz; i++ {
+		s1[i] = s2[i]
+	}
+}
+
+// roundFloat rounds a float value to a given precision
+func roundFloat(val float64, precision uint) float64 {
+	ratio := math.Pow(10, float64(precision))
+	return math.Round(val*ratio) / ratio
+}
+
+// convertLevel performs the necessary math for a channel level
+func convertLevel(i float32) float32 {
+	if i > 0 {
+		val := 20 * math.Log10(float64(i))
+		return float32(roundFloat(float64(val), 1))
+	}
+	return -200.0
+}

util_test.go

@@ -0,0 +1,41 @@
+package voicemeeter
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAllTrue(t *testing.T) {
+	//t.Skip("skipping test")
+	s := []bool{true, true, true, true, true, true}
+	t.Run("Should return true", func(t *testing.T) {
+		assert.True(t, allTrue(s, len(s)))
+	})
+	s = []bool{true, true, true, true, false, true}
+	t.Run("Should return false", func(t *testing.T) {
+		assert.False(t, allTrue(s, len(s)))
+	})
+}
+
+func TestUpdate(t *testing.T) {
+	//t.Skip("skipping test")
+	s1 := []float32{3.6, 8.7, 1.8, 18.2}
+	s2 := make([]float32, len(s1))
+	update(s2, s1, len(s1))
+	t.Run("Should return true", func(t *testing.T) {
+		assert.Equal(t, s1, s2)
+	})
+}
+
+func TestConvertLevel(t *testing.T) {
+	//t.Skip("skipping test")
+	res := convertLevel(0.02)
+	t.Run("Should be equal", func(t *testing.T) {
+		assert.Equal(t, float32(-34), res)
+	})
+	res = convertLevel(-0.02)
+	t.Run("Should be equal", func(t *testing.T) {
+		assert.Equal(t, float32(-200), res)
+	})
+}

vban.go

@@ -2,7 +2,8 @@ package voicemeeter
 
 import "fmt"
 
-type t_vban interface {
+// iVban defines the interface vban types must satisfy
+type iVban interface {
 	GetOn() bool
 	SetOn(val bool)
 	GetName() string
@@ -133,9 +134,9 @@ type vbanInStream struct {
 	vbanStream
 }
 
-func newVbanInStream(i int) t_vban {
+func newVbanInStream(i int) iVban {
 	vbi := vbanInStream{vbanStream{iRemote{fmt.Sprintf("vban.instream[%d]", i), i}}}
-	return t_vban(&vbi)
+	return iVban(&vbi)
 }
 
 // SetSr panics reason read only
@@ -157,23 +158,23 @@ type vbanOutStream struct {
 	vbanStream
 }
 
-func newVbanOutStream(i int) t_vban {
+func newVbanOutStream(i int) iVban {
 	vbo := vbanOutStream{vbanStream{iRemote{fmt.Sprintf("vban.outstream[%d]", i), i}}}
-	return t_vban(&vbo)
+	return iVban(&vbo)
 }
 
 type vban struct {
-	InStream  []t_vban
+	InStream  []iVban
-	OutStream []t_vban
+	OutStream []iVban
 }
 
 func newVban(k *kind) *vban {
-	_vbanIn := make([]t_vban, k.vbanIn)
+	_vbanIn := make([]iVban, k.VbanIn)
-	for i := 0; i < k.vbanIn; i++ {
+	for i := 0; i < k.VbanIn; i++ {
 		_vbanIn[i] = newVbanInStream(i)
 	}
-	_vbanOut := make([]t_vban, k.vbanOut)
+	_vbanOut := make([]iVban, k.VbanOut)
-	for i := 0; i < k.vbanOut; i++ {
+	for i := 0; i < k.VbanOut; i++ {
 		_vbanOut[i] = newVbanOutStream(i)
 	}
 	return &vban{

voicemeeter/publisher.go

@@ -1,68 +0,0 @@
-package voicemeeter
-
-import (
-	"time"
-)
-
-// observer defines the interface any registered observers must satisfy
-type observer interface {
-	OnUpdate(subject string)
-}
-
-// publisher defines methods that support observers
-type publisher struct {
-	observerList []observer
-}
-
-// Register adds an observer to observerList
-func (p *publisher) Register(o observer) {
-	p.observerList = append(p.observerList, o)
-}
-
-// Deregister removes an observer from observerList
-func (p *publisher) Deregister(o observer) {
-	var indexToRemove int
-
-	for i, observer := range p.observerList {
-		if observer == o {
-			indexToRemove = i
-			break
-		}
-	}
-
-	p.observerList = append(p.observerList[:indexToRemove], p.observerList[indexToRemove+1:]...)
-}
-
-// notify updates observers of any changes
-func (p *publisher) notify(subject string) {
-	for _, observer := range p.observerList {
-		observer.OnUpdate(subject)
-	}
-}
-
-// pooler continuously polls the dirty paramters
-// it is expected to be run in a goroutine
-type pooler struct {
-	run bool
-	publisher
-}
-
-func newPooler() *pooler {
-	p := &pooler{
-		run: true,
-	}
-	go p.runner()
-	return p
-}
-
-func (p *pooler) runner() {
-	for p.run {
-		if pdirty() {
-			p.notify("pdirty")
-		}
-		if mdirty() {
-			p.notify("mdirty")
-		}
-		time.Sleep(33 * time.Millisecond)
-	}
-}