dlprows/MacVolumeControl
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base: dlprows:f879a49e7d10aebf9ac69d890a67179b3ed57071
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dlprows:main
dlprows:1.0.0
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compare: dlprows:74a9482dbc0dffec48c2e60fa1e31619f1dfb707
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dlprows:main
dlprows:1.0.0

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7 changed files with 99 additions and 442 deletions
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2
src/Makefile
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@ -1,4 +1,4 @@
INSTALLDIR = ~/Library/Application\ Support/com.elgato.StreamDeck/Plugins/com.dlprows.macvolumecontrol.sdPlugin
INSTALLDIR = "~/Library/Application\ Support/com.elgato.StreamDeck/Plugins/com.dlprows.macvolumecontrol.sdPlugin"
#BUILDDIR = build
#RELEASEDIR = release
#SDPLUGINDIR = "./com.dlprows.macvolumecontrol.sdPlugin"

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src/com.dlprows.macvolumecontrol.sdPlugin/macvolumecontrol
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43
src/keyboard/keyboard.go Normal file
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@ -0,0 +1,43 @@
package keyboard
/*
#cgo CFLAGS: -x objective-c
#cgo LDFLAGS: -framework AppKit
#import <AppKit/AppKit.h>
NSEvent* createEvent(int k, bool down) {
int flags = down ? 0xa00 : 0xb00;
NSEvent* event = [NSEvent otherEventWithType:NSEventTypeSystemDefined
location:NSZeroPoint
modifierFlags:flags
timestamp:0
windowNumber:0
context:nil
subtype:8
data1:(k << 16 | flags)
data2:-1
];
return event;
}
void pressKey(int k) {
@autoreleasepool {
NSEvent* down = createEvent(k, true);
NSEvent* up = createEvent(k, false);
CGEventPost(kCGHIDEventTap, down.CGEvent);
usleep(1000);
CGEventPost(kCGHIDEventTap, up.CGEvent);
}
}
*/
import "C"
func PressMediaKey(key int) {
C.pressKey(C.int(key))
}
const (
VOLUMEUP = 0
VOLUMEDOWN = 1
MUTE = 7
)

3
src/logging/logging.go
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@ -20,9 +20,8 @@ func directory() string {
// Enable turns logging on for the StreamDeck API client as well as the global
// log object. It sends both to a temp file that contains <project_directory>.log.
func Enable() {
os.Mkdir("./logs/", 0775)
d := directory()
f, err := os.CreateTemp("./logs/", fmt.Sprintf("%s.log", d))
f, err := os.CreateTemp("./", fmt.Sprintf("%s.log", d))
if err != nil {
log.Fatalf("error creating temp file: %v", err)
}

135
src/main.go
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@ -3,20 +3,16 @@ package main
import (
"context"
"encoding/json"
"fmt"
"log"
"os"
"time"
"macvolumecontrol/keyboard"
"macvolumecontrol/logging"
"macvolumecontrol/volume"
"code.encyclopediaofdaniel.com/dlprows/streamdeck-sdk"
sdcontext "code.encyclopediaofdaniel.com/dlprows/streamdeck-sdk/context"
)
var _currentSettings *volume.VolumeSettings = &volume.VolumeSettings{}
func main() {
logging.Enable()
log.Println("Starting plugin")
@ -40,62 +36,46 @@ func setup(client *streamdeck.Client) {
log.Println("Registering actions")
action := client.Action("com.dlprows.macvolumecontrol.dialaction")
debounce := time.Now()
contexts := make(map[string]struct{})
action.RegisterHandler(streamdeck.DialRotate, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
log.Println("dial rotate")
t := time.Now()
elapsed := t.Sub(debounce)
if elapsed.Milliseconds() < 50 {
log.Println("dial rotate skipped")
return nil
}
debounce = t
p := streamdeck.DialRotatePayload[any]{}
if err := json.Unmarshal(event.Payload, &p); err != nil {
return err
}
//volume.ChangeVolumeWithKeyboard(p.Ticks)
newSettings, err := volume.ChangeVolume(p.Ticks)
if err != nil {
return err
if p.Ticks > 0 {
keyboard.PressMediaKey(keyboard.VOLUMEUP)
} else {
keyboard.PressMediaKey(keyboard.VOLUMEDOWN)
}
return setFeedbackIfNeeded(ctx, client, newSettings)
return nil
})
action.RegisterHandler(streamdeck.DialDown, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
log.Println("dial down")
newSettings, err := volume.ToggleMute()
if err != nil {
return err
}
return setFeedbackIfNeeded(ctx, client, newSettings)
})
action.RegisterHandler(streamdeck.TouchTap, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
log.Println("touch tap")
newSettings, err := volume.ToggleMute()
if err != nil {
return err
}
return setFeedbackIfNeeded(ctx, client, newSettings)
keyboard.PressMediaKey(keyboard.MUTE)
return nil
})
action.RegisterHandler(streamdeck.WillAppear, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
log.Println("Will Appear")
contexts[event.Context] = struct{}{}
newSettings, err := volume.GetVolumeSettings()
if err != nil {
return err
}
return setFeedbackIfNeeded(ctx, client, newSettings)
return nil
})
action.RegisterHandler(streamdeck.WillDisappear, func(ctx context.Context, client *streamdeck.Client, event streamdeck.Event) error {
@ -105,63 +85,44 @@ func setup(client *streamdeck.Client) {
})
//start background thread to keep the display up to date if changed outside the stream deck
go func() {
for range time.Tick(time.Second * 1) {
newSettings, err := volume.GetVolumeSettings()
//go func() {
if err != nil {
log.Fatal(err)
}
//}()
}
for ctxStr := range contexts {
//for each context
//build a new context that can be used to perform outbound requests
/*
osascript -e 'output volume of (get volume settings)'
osascript -e 'set volume output volume 50'
osascript -e 'output muted of (get volume settings)'
osascript -e 'set volume output muted true'
*/
/*
for ctxStr := range contexts {
//for each context
//build a new context that can be used to perform outbound requests
ctx := context.Background()
ctx = sdcontext.WithContext(ctx, ctxStr)
setFeedbackIfNeeded(ctx, client, newSettings)
}
}
}()
}
func setFeedbackIfNeeded(ctx context.Context, client *streamdeck.Client, newSettings *volume.VolumeSettings) error {
if _currentSettings.OutputVolume == newSettings.OutputVolume && _currentSettings.OutputMuted == newSettings.OutputMuted {
return nil
img, err := streamdeck.Image(graph(readings))
if err != nil {
log.Printf("error creating image: %v\n", err)
continue
}
payload := FeedbackPayload{}
opacity := 1.0
if newSettings.OutputMuted {
opacity = 0.5
if err := client.SetImage(ctx, img, streamdeck.HardwareAndSoftware); err != nil {
log.Printf("error setting image: %v\n", err)
continue
}
payload.Value = ValueWithOpacity[string]{
fmt.Sprintf("%d%%", newSettings.OutputVolume),
opacity,
title := ""
if pi.ShowText {
title = fmt.Sprintf("CPU\n%d%%", int(r[0]))
}
payload.Indicator = ValueWithOpacity[int]{
newSettings.OutputVolume,
opacity,
if err := client.SetTitle(ctx, title, streamdeck.HardwareAndSoftware); err != nil {
log.Printf("error setting title: %v\n", err)
continue
}
payload.Icon = ValueWithOpacity[any]{nil, opacity}
_currentSettings = newSettings
return client.SetFeedback(ctx, payload)
}
type FeedbackPayload struct {
Value ValueWithOpacity[string] `json:"value"`
Indicator ValueWithOpacity[int] `json:"indicator"`
Icon ValueWithOpacity[any] `json:"icon"`
}
type ValueWithOpacity[T any] struct {
Value T `json:"value,omitempty"`
Opacity float64 `json:"opacity"`
}
}
*/

134
src/volume/coreAudio.go
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@ -1,134 +0,0 @@
package volume
/*
#cgo CFLAGS: -x objective-c
#cgo LDFLAGS: -framework CoreAudio
#include <CoreAudio/CoreAudio.h>
*/
import "C"
import (
"unsafe"
)
type OSStatus C.OSStatus
const (
AudioHardwareNoError = C.kAudioHardwareNoError
)
type AudioObjectID uint32
func GetDefaultOutputDevice() (AudioObjectID, OSStatus) {
properties := C.AudioObjectPropertyAddress{
C.kAudioHardwarePropertyDefaultOutputDevice,
C.kAudioObjectPropertyScopeGlobal,
C.kAudioObjectPropertyElementMain,
}
var data C.AudioObjectID
dataSize := C.UInt32(unsafe.Sizeof(data))
result := C.AudioObjectGetPropertyData(
C.kAudioObjectSystemObject,
&properties,
C.UInt32(0),
unsafe.Pointer(nil),
&dataSize,
unsafe.Pointer(&data),
)
return AudioObjectID(data), OSStatus(result)
}
func GetVolume(objectID AudioObjectID) (float32, OSStatus) {
properties := C.AudioObjectPropertyAddress{
C.kAudioDevicePropertyVolumeScalar,
C.kAudioDevicePropertyScopeOutput,
0, //main channel
}
var data C.Float32
dataSize := C.UInt32(unsafe.Sizeof(data))
result := C.AudioObjectGetPropertyData(
C.AudioObjectID(objectID),
&properties,
C.UInt32(0),
unsafe.Pointer(nil),
&dataSize,
unsafe.Pointer(&data),
)
return float32(data), OSStatus(result)
}
func SetVolume(objectID AudioObjectID, volume float32) OSStatus {
properties := C.AudioObjectPropertyAddress{
C.kAudioDevicePropertyVolumeScalar,
C.kAudioDevicePropertyScopeOutput,
0, //main channel
}
data := C.Float32(volume)
result := C.AudioObjectSetPropertyData(
C.AudioObjectID(objectID),
&properties,
C.UInt32(0),
unsafe.Pointer(nil),
C.UInt32(unsafe.Sizeof(data)),
unsafe.Pointer(&data),
)
return OSStatus(result)
}
func GetMute(objectID AudioObjectID) (bool, OSStatus) {
properties := C.AudioObjectPropertyAddress{
C.kAudioDevicePropertyMute,
C.kAudioDevicePropertyScopeOutput,
0, //main channel
}
var data C.UInt32
dataSize := C.UInt32(unsafe.Sizeof(data))
result := C.AudioObjectGetPropertyData(
C.AudioObjectID(objectID),
&properties,
C.UInt32(0),
unsafe.Pointer(nil),
&dataSize,
unsafe.Pointer(&data),
)
dataAsBool := uint32(data) != 0
return dataAsBool, OSStatus(result)
}
func SetMute(objectID AudioObjectID, mute bool) OSStatus {
properties := C.AudioObjectPropertyAddress{
C.kAudioDevicePropertyMute,
C.kAudioDevicePropertyScopeOutput,
0, //main channel
}
data := C.UInt32(0)
if mute {
data = C.UInt32(1)
}
result := C.AudioObjectSetPropertyData(
C.AudioObjectID(objectID),
&properties,
C.UInt32(0),
unsafe.Pointer(nil),
C.UInt32(unsafe.Sizeof(data)),
unsafe.Pointer(&data),
)
return OSStatus(result)
}

212
src/volume/volume.go
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@ -1,212 +0,0 @@
package volume
/*
#cgo CFLAGS: -x objective-c
#cgo LDFLAGS: -framework AppKit
#import <AppKit/AppKit.h>
NSEvent* createEvent(int k, bool down) {
int flags = down ? 0xa00 : 0xb00;
NSEvent* event = [NSEvent otherEventWithType:NSEventTypeSystemDefined
location:NSZeroPoint
modifierFlags:flags
timestamp:0
windowNumber:0
context:nil
subtype:8
data1:(k << 16 | flags)
data2:-1
];
return event;
}
void pressKey(int k) {
@autoreleasepool {
NSEvent* down = createEvent(k, true);
NSEvent* up = createEvent(k, false);
CGEventPost(kCGHIDEventTap, down.CGEvent);
usleep(100);
CGEventPost(kCGHIDEventTap, up.CGEvent);
usleep(100);
}
}
*/
import "C"
import (
"errors"
"fmt"
)
/*
osascript -e 'output volume of (get volume settings)'
osascript -e 'set volume output volume 50'
osascript -e 'output muted of (get volume settings)'
osascript -e 'set volume output muted true'
*/
type VolumeSettings struct {
OutputVolume int
OutputMuted bool
}
func GetVolumeSettings() (*VolumeSettings, error) {
//osascript -e "get volume settings"
//output volume:81, input volume:50, alert volume:100, output muted:false
device, result := GetDefaultOutputDevice()
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get device: %d", result))
}
return getVolumeSettings(device)
}
func getVolumeSettings(device AudioObjectID) (*VolumeSettings, error) {
volume, result := GetVolume(device)
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get volume: %d", result))
}
muted, result := GetMute(device)
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get mute: %d", result))
}
settings := VolumeSettings{
int(volume * 100),
muted,
}
return &settings, nil
}
func ChangeVolume(ticks int) (*VolumeSettings, error) {
device, result := GetDefaultOutputDevice()
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get device: %d", result))
}
volume, result := GetVolume(device)
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get volume: %d", result))
}
volume = volume * 64 //convert from fractional volume to 64 steps that mac supports
volume += float32(ticks) //add number of ticks
volume = volume / 64 //convert back to fractional volume that mac supports
SetVolume(device, volume)
return getVolumeSettings(device)
}
func ToggleMute() (*VolumeSettings, error) {
device, result := GetDefaultOutputDevice()
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get device: %d", result))
}
muted, result := GetMute(device)
if result != AudioHardwareNoError {
return nil, errors.New(fmt.Sprintf("Unable to get volume: %d", result))
}
SetMute(device, !muted)
return getVolumeSettings(device)
}
func ChangeVolumeWithKeyboard(ticks int) {
key := volumeup
if ticks < 0 {
key = volumedown
ticks = -1 * ticks
}
for x := 0; x < ticks; x++ {
C.pressKey(C.int(key))
}
}
func ToggleMuteWithKeyboard() {
C.pressKey(C.int(mute))
}
const (
volumeup = 0
volumedown = 1
mute = 7
)
/*
Get volume in applescript
out, err := exec.Command("osascript", "-e", "get volume settings").Output()
if err != nil {
return nil, err
}
split1 := strings.Split(string(out), ",")
settings := VolumeSettings{}
for _, sub := range split1 {
if strings.HasPrefix(sub, "output volume:") {
outputVolume, err := strconv.Atoi(strings.Split(sub, ":")[1])
if err != nil {
log.Fatal(err)
continue
}
settings.OutputVolume = outputVolume
} else if strings.HasPrefix(sub, "output muted:") {
outputMuted, err := strconv.ParseBool(strings.Split(sub, ":")[1])
if err != nil {
log.Fatal(err)
continue
}
settings.OutputMuted = outputMuted
}
}
*/
/*
set volume in applescript
//script := "set volume output muted (not output muted of (get volume settings))"
settings, err := GetVolumeSettings()
if err != nil {
return nil, err
}
volume := float64(settings.OutputVolume) * 64 / 100
volume += float64(ticks)
newVolume := int(math.Round(volume * 100 / 64))
if newVolume > 100 {
newVolume = 100
}
if newVolume < 0 {
newVolume = 0
}
settings.OutputVolume = newVolume
script := fmt.Sprintf("set volume output volume %d", newVolume)
return settings, exec.Command("osascript", "-e", script).Run()
*/
//script := "set volume output muted (not output muted of (get volume settings))"
//return exec.Command("osascript", "-e", "set volume output muted (not output muted of (get volume settings))").Run()