AudioFlinger: Extract inner VolumeInterface class
Change to RefBase for proper lifetime as the sibling
interfaces are also refcounted.
Test: atest audiorecord_tests audiotrack_tests audiorouting_tests trackplayerbase_tests audiosystem_tests
Test: atest AudioTrackTest AudioRecordTest
Test: YouTube Camera
Bug: 288339104
Bug: 290288893
Merged-In: I92ad5ce31152813e935cb3e549bde3d11241ef64
Change-Id: I92ad5ce31152813e935cb3e549bde3d11241ef64
diff --git a/services/audioflinger/datapath/VolumeInterface.h b/services/audioflinger/datapath/VolumeInterface.h
new file mode 100644
index 0000000..4635e07
--- /dev/null
+++ b/services/audioflinger/datapath/VolumeInterface.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2023 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 VolumeInterface : public virtual RefBase {
+public:
+ virtual void setMasterVolume(float value) = 0;
+ virtual void setMasterMute(bool muted) = 0;
+ virtual void setStreamVolume(audio_stream_type_t stream, float value) = 0;
+ virtual void setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+ // TODO(b/290699744) add "get" prefix for getter below.
+ virtual float streamVolume(audio_stream_type_t stream) const = 0;
+};
+
+} // namespace android