1 files changed, 47 insertions, 0 deletions
diff --git a/core/jni/android_media_DeviceCallback.h b/core/jni/android_media_DeviceCallback.h
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+++ b/core/jni/android_media_DeviceCallback.h
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+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef ANDROID_MEDIA_DEVICE_CALLBACK_H
+#define ANDROID_MEDIA_DEVICE_CALLBACK_H
+
+#include <system/audio.h>
+#include <media/AudioSystem.h>
+
+namespace android {
+
+// keep in sync with AudioSystem.java
+#define AUDIO_NATIVE_EVENT_ROUTING_CHANGE      1000
+
+class JNIDeviceCallback: public AudioSystem::AudioDeviceCallback
+{
+public:
+    JNIDeviceCallback(JNIEnv* env, jobject thiz, jobject weak_thiz, jmethodID postEventFromNative);
+    ~JNIDeviceCallback();
+
+    virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo,
+                                     audio_port_handle_t deviceId);
+
+private:
+    void sendEvent(int event);
+
+    jclass      mClass;     // Reference to AudioTrack/AudioRecord class
+    jobject     mObject;    // Weak ref to AudioTrack/AudioRecord Java object to call on
+    jmethodID   mPostEventFromNative; // postEventFromNative method ID.
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIA_DEVICE_CALLBACK_H