From 69438b725340cde6465b6d0ab6c31a9e47a674ac Mon Sep 17 00:00:00 2001
From: fuleyi <fuleyi@uniontech.com>
Date: Fri, 26 Dec 2025 17:44:22 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E8=A7=A3=E5=86=B3=E9=9F=B3=E9=A2=91?=
 =?UTF-8?q?=E7=AB=AF=E5=8F=A3=E5=88=9D=E5=A7=8B=E5=8C=96=E6=97=B6=E4=B8=BA?=
 =?UTF-8?q?null-sink=E7=9A=84=E9=97=AE=E9=A2=98?=
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初始化时会加载null-sink, 概率性触发底层事件,将默认输入输出设置为null-sink.
当输入输出设置为null-sink时,再检查一次端口是否有可用端口,如果有则切换

Log:
PMS: BUG-340327
Influence: audio
---
 audio1/audio.go        | 28 ++++++++++++++++------------
 audio1/audio_events.go | 20 ++++++++++++--------
 2 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/audio1/audio.go b/audio1/audio.go
index 1b4d1601d..b00cdb851 100644
--- a/audio1/audio.go
+++ b/audio1/audio.go
@@ -626,7 +626,6 @@ func (a *Audio) refreshSinks() {
 	sinkInfoMap := make(map[uint32]*pulse.Sink)
 	sinkInfoList := a.ctx.GetSinkList()
 
-	hasNullSink := false
 	for _, sinkInfo := range sinkInfoList {
 		if sinkInfo.Name == dndVirtualSinkName {
 			port := pulse.PortInfo{
@@ -638,9 +637,6 @@ func (a *Audio) refreshSinks() {
 			sinkInfo.Ports = append(sinkInfo.Ports, port)
 			sinkInfo.ActivePort = port
 		}
-		if sinkInfo.Name == nullSinkName {
-			hasNullSink = true
-		}
 		sinkInfoMap[sinkInfo.Index] = sinkInfo
 		sink, exist := a.sinks[sinkInfo.Index]
 		if exist {
@@ -663,11 +659,6 @@ func (a *Audio) refreshSinks() {
 			delete(a.sinks, key)
 		}
 	}
-
-	// 加载module-null-sink，噪音抑制时，将sink-input端口Echo-Cancel Playback引入到null-sink
-	if !hasNullSink {
-		a.LoadNullSinkModule()
-	}
 }
 
 func (a *Audio) refreshSources() {
@@ -795,6 +786,8 @@ func (a *Audio) init() error {
 	if err != nil {
 		return err
 	}
+	// 加载module-null-sink，噪音抑制时，将sink-input端口Echo-Cancel Playback引入到null-sink
+	a.LoadNullSinkModule()
 
 	// 更新本地数据
 	a.refresh()
@@ -1328,9 +1321,14 @@ func (a *Audio) refreshBluetoothOpts() {
 func (a *Audio) updateDefaultSink(sinkName string) {
 	sinkInfo := a.getPhySinkInfoByName(sinkName)
 	if sinkInfo == nil {
-		logger.Warning("failed to get sinkInfo for name:", sinkName)
+		// 如果是null-sink再检查一次，是否可以自动切换端口
 		a.setPropDefaultSink("/")
 		a.defaultSink = nil
+		if strings.Contains(sinkName, "null-sink") {
+			a.autoSwitchOutputPort()
+		} else {
+			logger.Warning("failed to get sinkInfo for name:", sinkName)
+		}
 		return
 	}
 	a.moveSinkInputsToSink(nil)
@@ -1391,9 +1389,13 @@ func (a *Audio) updateDefaultSink(sinkName string) {
 func (a *Audio) updateDefaultSource(sourceName string) {
 	sourceInfo := a.getPhySourceInfoByName(sourceName)
 	if sourceInfo == nil {
-		logger.Warning("failed to get sourceInfo for name:", sourceName)
 		a.setPropDefaultSource("/")
 		a.defaultSource = nil
+		if strings.Contains(sourceName, "null-sink") {
+			a.autoSwitchInputPort()
+		} else {
+			logger.Warning("failed to get sourceInfo for name:", sourceName)
+		}
 		return
 	}
 	if a.defaultSource != nil && a.defaultSource.Name == sourceName {
@@ -1867,7 +1869,9 @@ func (a *Audio) handleVolumeIncrease() {
 }
 
 func (a *Audio) LoadNullSinkModule() {
-	a.context().LoadModule(nullSinkModuleName, "")
+	if !a.isModuleExist(nullSinkModuleName) {
+		a.ctx.LoadModule(nullSinkModuleName, "")
+	}
 }
 
 func (a *Audio) unsetReduceNoise() {
diff --git a/audio1/audio_events.go b/audio1/audio_events.go
index 60167af88..6ba269a3d 100644
--- a/audio1/audio_events.go
+++ b/audio1/audio_events.go
@@ -207,11 +207,13 @@ func (a *Audio) autoSwitchOutputPort() bool {
 	auto, cardId, portName := a.checkAutoSwitchOutputPort()
 	if auto {
 		if cardId == 0 || portName == "" {
-			if !a.isModuleExist(nullSinkModuleName) {
-				a.ctx.LoadModule(nullSinkModuleName, "")
+			if !strings.Contains(a.ctx.GetDefaultSink(), "null-sink") {
+				a.LoadNullSinkModule()
+				logger.Info("no prefer port, set default sink to", nullSinkName)
+				a.ctx.SetDefaultSink(nullSinkName)
+			} else {
+				logger.Info("no prefer port, default sink is null-sink already")
 			}
-			logger.Info("no prefer port, set defaut sink to", nullSinkName)
-			a.ctx.SetDefaultSink(nullSinkName)
 			return true
 		} else {
 			err := a.setPort(cardId, portName, pulse.DirectionSink, true)
@@ -269,11 +271,13 @@ func (a *Audio) autoSwitchInputPort() bool {
 	auto, cardId, portName := a.checkAutoSwitchInputPort()
 	if auto {
 		if cardId == 0 || portName == "" {
-			if !a.isModuleExist(nullSinkModuleName) {
-				a.ctx.LoadModule(nullSinkModuleName, "")
+			if !strings.Contains(a.ctx.GetDefaultSource(), "null-sink") {
+				a.LoadNullSinkModule()
+				logger.Info("no prefer port, set default source to", nullSinkName)
+				a.ctx.SetDefaultSource(nullSinkName + ".monitor")
+			} else {
+				logger.Info("no prefer port, default source is null-sink already")
 			}
-			logger.Info("no prefer port, set defaut source to", nullSinkName)
-			a.ctx.SetDefaultSource(nullSinkName + ".monitor")
 			return true
 		} else {
 			err := a.setPort(cardId, portName, pulse.DirectionSource, true)