Merge "Add setCallAudioHandler api for dynamic audio switching feature"

3 files changed, 60 insertions, 0 deletions

diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 6f341f25e288..b3cbba2b95da 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -15737,9 +15737,12 @@ package android.telephony.ims.feature {
     method public void onFeatureRemoved();
     method public boolean queryCapabilityConfiguration(int, int);
     method @NonNull public final android.telephony.ims.feature.MmTelFeature.MmTelCapabilities queryCapabilityStatus();
+    method public final void setCallAudioHandler(int);
     method public void setTerminalBasedCallWaitingStatus(boolean);
     method public void setUiTtyMode(int, @Nullable android.os.Message);
     method public int shouldProcessCall(@NonNull String[]);
+    field public static final int AUDIO_HANDLER_ANDROID = 0; // 0x0
+    field public static final int AUDIO_HANDLER_BASEBAND = 1; // 0x1
     field public static final String EXTRA_IS_UNKNOWN_CALL = "android.telephony.ims.feature.extra.IS_UNKNOWN_CALL";
     field public static final String EXTRA_IS_USSD = "android.telephony.ims.feature.extra.IS_USSD";
     field public static final int PROCESS_CALL_CSFB = 1; // 0x1
diff --git a/telephony/java/android/telephony/ims/aidl/IImsMmTelListener.aidl b/telephony/java/android/telephony/ims/aidl/IImsMmTelListener.aidl
index 52464703c608..640426b45ba3 100644
--- a/telephony/java/android/telephony/ims/aidl/IImsMmTelListener.aidl
+++ b/telephony/java/android/telephony/ims/aidl/IImsMmTelListener.aidl
@@ -34,4 +34,5 @@ interface IImsMmTelListener {
     void onIncomingCall(IImsCallSession c, in Bundle extras);
     void onRejectedCall(in ImsCallProfile callProfile, in ImsReasonInfo reason);
     oneway void onVoiceMessageCountUpdate(int count);
+    oneway void onAudioModeIsVoipChanged(int imsAudioHandler);
 }
diff --git a/telephony/java/android/telephony/ims/feature/MmTelFeature.java b/telephony/java/android/telephony/ims/feature/MmTelFeature.java
index a380241c860b..4710c1f4dbf3 100644
--- a/telephony/java/android/telephony/ims/feature/MmTelFeature.java
+++ b/telephony/java/android/telephony/ims/feature/MmTelFeature.java
@@ -579,6 +579,17 @@ public class MmTelFeature extends ImsFeature {
         public void onVoiceMessageCountUpdate(int count) {
 
         }
+
+        /**
+         * Called to set the audio handler for this connection.
+         * @param imsAudioHandler an {@link ImsAudioHandler} used to handle the audio
+         *        for this IMS call.
+         * @hide
+         */
+        @Override
+        public void onAudioModeIsVoipChanged(int imsAudioHandler) {
+
+        }
     }
 
     /**
@@ -628,6 +639,29 @@ public class MmTelFeature extends ImsFeature {
     public static final String EXTRA_IS_UNKNOWN_CALL =
             "android.telephony.ims.feature.extra.IS_UNKNOWN_CALL";
 
+    /** @hide */
+    @IntDef(flag = true,
+            value = {
+                    AUDIO_HANDLER_ANDROID,
+                    AUDIO_HANDLER_BASEBAND
+            })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface ImsAudioHandler {}
+
+    /**
+    * Audio Handler - Android
+    * @hide
+    */
+    @SystemApi
+    public static final int AUDIO_HANDLER_ANDROID = 0;
+
+    /**
+    * Audio Handler - Baseband
+    * @hide
+    */
+    @SystemApi
+    public static final int AUDIO_HANDLER_BASEBAND = 1;
+
     private IImsMmTelListener mListener;
 
     /**
@@ -774,6 +808,28 @@ public class MmTelFeature extends ImsFeature {
     }
 
     /**
+     * Sets the audio handler for this connection. The vendor IMS stack will invoke this API
+     * to inform Telephony/Telecom layers about which audio handlers i.e. either Android or Modem
+     * shall be used for handling the IMS call audio.
+     *
+     * @param imsAudioHandler {@link MmTelFeature#ImsAudioHandler} used to handle the audio
+     *        for this IMS call.
+     * @hide
+     */
+    @SystemApi
+    public final void setCallAudioHandler(@ImsAudioHandler int imsAudioHandler) {
+        IImsMmTelListener listener = getListener();
+        if (listener == null) {
+            throw new IllegalStateException("Session is not available.");
+        }
+        try {
+            listener.onAudioModeIsVoipChanged(imsAudioHandler);
+        } catch (RemoteException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
      * Provides the MmTelFeature with the ability to return the framework Capability Configuration
      * for a provided Capability. If the framework calls {@link #changeEnabledCapabilities} and
      * includes a capability A to enable or disable, this method should return the correct enabled