very WIP for DLNA casting

backend/app.go

@@ -11,16 +11,18 @@ import (
 	"path/filepath"
 	"reflect"
 	"runtime"
-	"slices"
 	"strings"
 	"time"
 
 	"github.com/dweymouth/supersonic/backend/ipc"
 	"github.com/dweymouth/supersonic/backend/mediaprovider"
 	"github.com/dweymouth/supersonic/backend/player"
+	"github.com/dweymouth/supersonic/backend/player/dlna"
 	"github.com/dweymouth/supersonic/backend/player/mpv"
 	"github.com/dweymouth/supersonic/backend/util"
 	"github.com/google/uuid"
+	"github.com/supersonic-app/go-upnpcast/device"
+	"github.com/supersonic-app/go-upnpcast/services"
 
 	"github.com/20after4/configdir"
 	"github.com/zalando/go-keyring"
@@ -43,7 +45,7 @@ type App struct {
 	ServerManager   *ServerManager
 	ImageManager    *ImageManager
 	PlaybackManager *PlaybackManager
-	LocalPlayer     *mpv.Player
+	LocalPlayer     player.BasePlayer
 	UpdateChecker   UpdateChecker
 	MPRISHandler    *MPRISHandler
 	WinSMTC         *SMTC
@@ -273,7 +275,11 @@ func (a *App) initMPV() error {
 	if err := p.Init(c.InMemoryCacheSizeMB); err != nil {
 		return fmt.Errorf("failed to initialize mpv player: %s", err.Error())
 	}
-	a.LocalPlayer = p
+	//	a.LocalPlayer = p
+	devices, _ := device.SearchMediaRenderers(context.Background(), 10, services.AVTransport)
+	if len(devices) > 0 {
+		a.LocalPlayer, _ = dlna.NewDLNAPlayer(devices[0])
+	}
 	return nil
 }
 
@@ -281,55 +287,57 @@ func (a *App) setupMPV() error {
 	a.Config.LocalPlayback.Volume = clamp(a.Config.LocalPlayback.Volume, 0, 100)
 	a.LocalPlayer.SetVolume(a.Config.LocalPlayback.Volume)
 
-	devs, err := a.LocalPlayer.ListAudioDevices()
-	if err != nil {
-		return err
-	}
-
-	desiredDevice := a.Config.LocalPlayback.AudioDeviceName
-	var desiredDeviceAvailable bool
-	for _, dev := range devs {
-		if dev.Name == desiredDevice {
-			desiredDeviceAvailable = true
-			break
+	/*
+		devs, err := a.LocalPlayer.ListAudioDevices()
+		if err != nil {
+			return err
 		}
-	}
-	if !desiredDeviceAvailable {
-		// The audio device the user has configured is not available.
-		// Use the default (autoselect) device but leave the setting unchanged,
-		// in case the device is later available on a subsequent run of the app
-		// (e.g. a USB audio device that is currently unplugged)
-		desiredDevice = "auto"
-	}
-	a.LocalPlayer.SetAudioDevice(desiredDevice)
 
-	rgainOpts := []string{ReplayGainNone, ReplayGainAlbum, ReplayGainTrack, ReplayGainAuto}
-	if !slices.Contains(rgainOpts, a.Config.ReplayGain.Mode) {
-		a.Config.ReplayGain.Mode = ReplayGainNone
-	}
-	mode := player.ReplayGainNone
-	switch a.Config.ReplayGain.Mode {
-	case ReplayGainAlbum:
-		mode = player.ReplayGainAlbum
-	case ReplayGainTrack:
-		mode = player.ReplayGainTrack
-	case ReplayGainAuto:
-		mode = player.ReplayGainTrack
-	}
+		desiredDevice := a.Config.LocalPlayback.AudioDeviceName
+		var desiredDeviceAvailable bool
+		for _, dev := range devs {
+			if dev.Name == desiredDevice {
+				desiredDeviceAvailable = true
+				break
+			}
+		}
+		if !desiredDeviceAvailable {
+			// The audio device the user has configured is not available.
+			// Use the default (autoselect) device but leave the setting unchanged,
+			// in case the device is later available on a subsequent run of the app
+			// (e.g. a USB audio device that is currently unplugged)
+			desiredDevice = "auto"
+		}
+		a.LocalPlayer.SetAudioDevice(desiredDevice)
 
-	a.LocalPlayer.SetReplayGainOptions(player.ReplayGainOptions{
-		Mode:            mode,
-		PreventClipping: a.Config.ReplayGain.PreventClipping,
-		PreampGain:      a.Config.ReplayGain.PreampGainDB,
-	})
-	a.LocalPlayer.SetAudioExclusive(a.Config.LocalPlayback.AudioExclusive)
+		rgainOpts := []string{ReplayGainNone, ReplayGainAlbum, ReplayGainTrack, ReplayGainAuto}
+		if !slices.Contains(rgainOpts, a.Config.ReplayGain.Mode) {
+			a.Config.ReplayGain.Mode = ReplayGainNone
+		}
+		mode := player.ReplayGainNone
+		switch a.Config.ReplayGain.Mode {
+		case ReplayGainAlbum:
+			mode = player.ReplayGainAlbum
+		case ReplayGainTrack:
+			mode = player.ReplayGainTrack
+		case ReplayGainAuto:
+			mode = player.ReplayGainTrack
+		}
 
-	eq := &mpv.ISO15BandEqualizer{
-		EQPreamp: a.Config.LocalPlayback.EqualizerPreamp,
-		Disabled: !a.Config.LocalPlayback.EqualizerEnabled,
-	}
-	copy(eq.BandGains[:], a.Config.LocalPlayback.GraphicEqualizerBands)
-	a.LocalPlayer.SetEqualizer(eq)
+		a.LocalPlayer.SetReplayGainOptions(player.ReplayGainOptions{
+			Mode:            mode,
+			PreventClipping: a.Config.ReplayGain.PreventClipping,
+			PreampGain:      a.Config.ReplayGain.PreampGainDB,
+		})
+		a.LocalPlayer.SetAudioExclusive(a.Config.LocalPlayback.AudioExclusive)
+
+		eq := &mpv.ISO15BandEqualizer{
+			EQPreamp: a.Config.LocalPlayback.EqualizerPreamp,
+			Disabled: !a.Config.LocalPlayback.EqualizerEnabled,
+		}
+		copy(eq.BandGains[:], a.Config.LocalPlayback.GraphicEqualizerBands)
+		a.LocalPlayer.SetEqualizer(eq)
+	*/
 
 	return nil
 }
@@ -450,7 +458,7 @@ func (a *App) Shutdown() {
 	a.PlaybackManager.DisableCallbacks()
 	a.PlaybackManager.Stop() // will trigger scrobble check
 	a.cancel()
-	a.LocalPlayer.Destroy()
+	//a.LocalPlayer.Destroy()
 }
 
 func (a *App) SavePlayQueueIfEnabled() {