Reapply "AudioFlinger: Control volume using Port ID"
This reverts commit 277a37ea5c5a5636740131c71a38de7cddbf3544.
Bug: 317212590
Test: build & play audio
Test: atest audiopolicy_tests
Flag: com.android.media.audioserver.portid_volume_management
Change-Id: I7450d9c58ddb4a8780751b391bfb693ef6f82ab6
diff --git a/services/audioflinger/datapath/VolumePortInterface.h b/services/audioflinger/datapath/VolumePortInterface.h
new file mode 100644
index 0000000..fb1c463
--- /dev/null
+++ b/services/audioflinger/datapath/VolumePortInterface.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <system/audio.h>
+
+namespace android {
+
+class VolumePortInterface : public virtual RefBase {
+public:
+ virtual void setPortVolume(float volume) = 0;
+ virtual float getPortVolume() const = 0;
+};
+
+} // namespace android