From b0b2dc46f975506e66c3cf6c8885bfe94a7f5109 Mon Sep 17 00:00:00 2001
From: Gianluca Boiano <morf3089@gmail.com>
Date: Fri, 6 Feb 2026 02:50:40 +0100
Subject: [PATCH] Update player to support both 10-band and 15-band equalizers

---
 backend/app.go              | 57 +++++++++++++++++++++++++++----------
 ui/controller/controller.go | 35 +++++++++++++++++++----
 2 files changed, 71 insertions(+), 21 deletions(-)

diff --git a/backend/app.go b/backend/app.go
index e1e71b5..71d5e86 100644
--- a/backend/app.go
+++ b/backend/app.go
@@ -43,17 +43,19 @@ var (
 )
 
 type App struct {
-	Config          *Config
-	ServerManager   *ServerManager
-	LyricsManager   *LyricsManager
-	ImageManager    *ImageManager
-	AudioCache      *AudioCache
-	PlaybackManager *PlaybackManager
-	LocalPlayer     *mpv.Player
-	UpdateChecker   UpdateChecker
-	MPRISHandler    *MPRISHandler
-	WinSMTC         *windows.SMTC
-	ipcServer       ipc.IPCServer
+	Config           *Config
+	ServerManager    *ServerManager
+	LyricsManager    *LyricsManager
+	ImageManager     *ImageManager
+	AudioCache       *AudioCache
+	AutoEQManager    *AutoEQManager
+	EQPresetManager  *EQPresetManager
+	PlaybackManager  *PlaybackManager
+	LocalPlayer      *mpv.Player
+	UpdateChecker    UpdateChecker
+	MPRISHandler     *MPRISHandler
+	WinSMTC          *windows.SMTC
+	ipcServer        ipc.IPCServer
 
 	// UI callbacks to be set in main
 	OnReactivate func()
@@ -165,6 +167,11 @@ func StartupApp(appName, displayAppName, appVersion, appVersionTag, latestReleas
 		fetch = NewLrcLibFetcher(a.cacheDir, a.Config.Application.CustomLrcLibUrl, timeout)
 	}
 	a.LyricsManager = NewLyricsManager(a.ServerManager, fetch)
+	a.EQPresetManager = NewEQPresetManager(confDir)
+
+	// Initialize AutoEQ manager
+	autoEQTimeout := time.Duration(a.Config.Application.RequestTimeoutSeconds) * time.Second
+	a.AutoEQManager = NewAutoEQManager(filepath.Join(cacheDir, "autoeq"), autoEQTimeout)
 
 	// Periodically scan for remote players
 	go a.PlaybackManager.ScanRemotePlayers(a.bgrndCtx, true /*fastScan*/)
@@ -386,11 +393,31 @@ func (a *App) setupMPV() error {
 	a.LocalPlayer.SetAudioExclusive(a.Config.LocalPlayback.AudioExclusive)
 	a.LocalPlayer.SetPauseFade(a.Config.LocalPlayback.PauseFade)
 
-	eq := &mpv.ISO15BandEqualizer{
-		EQPreamp: a.Config.LocalPlayback.EqualizerPreamp,
-		Disabled: !a.Config.LocalPlayback.EqualizerEnabled,
+	// Initialize the appropriate equalizer type based on config
+	var eq mpv.Equalizer
+	if a.Config.LocalPlayback.EqualizerType == "ISO10Band" {
+		eq10 := &mpv.ISO10BandEqualizer{
+			EQPreamp: a.Config.LocalPlayback.EqualizerPreamp,
+			Disabled: !a.Config.LocalPlayback.EqualizerEnabled,
+		}
+		// Copy up to 10 bands
+		numBands := min(len(a.Config.LocalPlayback.GraphicEqualizerBands), 10)
+		for i := 0; i < numBands; i++ {
+			eq10.BandGains[i] = a.Config.LocalPlayback.GraphicEqualizerBands[i]
+		}
+		eq = eq10
+	} else {
+		eq15 := &mpv.ISO15BandEqualizer{
+			EQPreamp: a.Config.LocalPlayback.EqualizerPreamp,
+			Disabled: !a.Config.LocalPlayback.EqualizerEnabled,
+		}
+		// Copy up to 15 bands
+		numBands := min(len(a.Config.LocalPlayback.GraphicEqualizerBands), 15)
+		for i := 0; i < numBands; i++ {
+			eq15.BandGains[i] = a.Config.LocalPlayback.GraphicEqualizerBands[i]
+		}
+		eq = eq15
 	}
-	copy(eq.BandGains[:], a.Config.LocalPlayback.GraphicEqualizerBands)
 	a.LocalPlayer.SetEqualizer(eq)
 
 	return nil
diff --git a/ui/controller/controller.go b/ui/controller/controller.go
index 9c9421a..0c73893 100644
--- a/ui/controller/controller.go
+++ b/ui/controller/controller.go
@@ -327,7 +327,10 @@ func (c *Controller) ShowSettingsDialog(themeUpdateCallbk func(), themeFiles map
 		devs, themeFiles, bands,
 		c.App.ServerManager.Server.ClientDecidesScrobble(),
 		isLocalPlayer, isReplayGainPlayer, isEqualizerPlayer, canSavePlayQueue,
-		c.MainWindow)
+		c.App.EQPresetManager,
+		c.MainWindow,
+		c.App.AutoEQManager,
+		c.App.ImageManager)
 	dlg.OnReplayGainSettingsChanged = func() {
 		c.App.PlaybackManager.SetReplayGainOptions(c.App.Config.ReplayGain)
 	}
@@ -342,11 +345,31 @@ func (c *Controller) ShowSettingsDialog(themeUpdateCallbk func(), themeFiles map
 	}
 	dlg.OnThemeSettingChanged = themeUpdateCallbk
 	dlg.OnEqualizerSettingsChanged = func() {
-		// currently we only have one equalizer type
-		eq := c.App.LocalPlayer.Equalizer().(*mpv.ISO15BandEqualizer)
-		eq.Disabled = !c.App.Config.LocalPlayback.EqualizerEnabled
-		eq.EQPreamp = c.App.Config.LocalPlayback.EqualizerPreamp
-		copy(eq.BandGains[:], c.App.Config.LocalPlayback.GraphicEqualizerBands)
+		// Create the appropriate equalizer type based on config
+		var eq mpv.Equalizer
+		if c.App.Config.LocalPlayback.EqualizerType == "ISO10Band" {
+			eq10 := &mpv.ISO10BandEqualizer{
+				Disabled: !c.App.Config.LocalPlayback.EqualizerEnabled,
+				EQPreamp: c.App.Config.LocalPlayback.EqualizerPreamp,
+			}
+			// Copy up to 10 bands
+			numBands := min(len(c.App.Config.LocalPlayback.GraphicEqualizerBands), 10)
+			for i := 0; i < numBands; i++ {
+				eq10.BandGains[i] = c.App.Config.LocalPlayback.GraphicEqualizerBands[i]
+			}
+			eq = eq10
+		} else {
+			eq15 := &mpv.ISO15BandEqualizer{
+				Disabled: !c.App.Config.LocalPlayback.EqualizerEnabled,
+				EQPreamp: c.App.Config.LocalPlayback.EqualizerPreamp,
+			}
+			// Copy up to 15 bands
+			numBands := min(len(c.App.Config.LocalPlayback.GraphicEqualizerBands), 15)
+			for i := 0; i < numBands; i++ {
+				eq15.BandGains[i] = c.App.Config.LocalPlayback.GraphicEqualizerBands[i]
+			}
+			eq = eq15
+		}
 		c.App.LocalPlayer.SetEqualizer(eq)
 	}
 	dlg.OnPageNeedsRefresh = c.RefreshPageFunc