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/*
* Copyright (C) 2014 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
*/
package android.telecom;
import android.compat.annotation.UnsupportedAppUsage;
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.RemoteException;
import android.telecom.InCallService.VideoCall;
import android.view.Surface;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.os.SomeArgs;
import com.android.internal.telecom.IVideoCallback;
import com.android.internal.telecom.IVideoProvider;
import java.util.NoSuchElementException;
/**
* Implementation of a Video Call, which allows InCallUi to communicate commands to the underlying
* {@link Connection.VideoProvider}, and direct callbacks from the
* {@link Connection.VideoProvider} to the appropriate {@link VideoCall.Listener}.
*
* {@hide}
*/
public class VideoCallImpl extends VideoCall {
private final IVideoProvider mVideoProvider;
private final VideoCallListenerBinder mBinder;
private VideoCall.Callback mCallback;
private int mVideoQuality = VideoProfile.QUALITY_UNKNOWN;
private int mVideoState = VideoProfile.STATE_AUDIO_ONLY;
private final String mCallingPackageName;
private int mTargetSdkVersion;
private IBinder.DeathRecipient mDeathRecipient = new IBinder.DeathRecipient() {
@Override
public void binderDied() {
try {
mVideoProvider.asBinder().unlinkToDeath(this, 0);
} catch (NoSuchElementException nse) {
// Already unlinked in destroy below.
}
}
};
/**
* IVideoCallback stub implementation.
*/
private final class VideoCallListenerBinder extends IVideoCallback.Stub {
@Override
public void receiveSessionModifyRequest(VideoProfile videoProfile) {
if (mHandler == null) {
return;
}
mHandler.obtainMessage(MessageHandler.MSG_RECEIVE_SESSION_MODIFY_REQUEST,
videoProfile).sendToTarget();
}
@Override
public void receiveSessionModifyResponse(int status, VideoProfile requestProfile,
VideoProfile responseProfile) {
if (mHandler == null) {
return;
}
SomeArgs args = SomeArgs.obtain();
args.arg1 = status;
args.arg2 = requestProfile;
args.arg3 = responseProfile;
mHandler.obtainMessage(MessageHandler.MSG_RECEIVE_SESSION_MODIFY_RESPONSE, args)
.sendToTarget();
}
@Override
public void handleCallSessionEvent(int event) {
if (mHandler == null) {
return;
}
mHandler.obtainMessage(MessageHandler.MSG_HANDLE_CALL_SESSION_EVENT, event)
.sendToTarget();
}
@Override
public void changePeerDimensions(int width, int height) {
if (mHandler == null) {
return;
}
SomeArgs args = SomeArgs.obtain();
args.arg1 = width;
args.arg2 = height;
mHandler.obtainMessage(MessageHandler.MSG_CHANGE_PEER_DIMENSIONS, args).sendToTarget();
}
@Override
public void changeVideoQuality(int videoQuality) {
if (mHandler == null) {
return;
}
mHandler.obtainMessage(MessageHandler.MSG_CHANGE_VIDEO_QUALITY, videoQuality, 0)
.sendToTarget();
}
@Override
public void changeCallDataUsage(long dataUsage) {
if (mHandler == null) {
return;
}
mHandler.obtainMessage(MessageHandler.MSG_CHANGE_CALL_DATA_USAGE, dataUsage)
.sendToTarget();
}
@Override
public void changeCameraCapabilities(VideoProfile.CameraCapabilities cameraCapabilities) {
if (mHandler == null) {
return;
}
mHandler.obtainMessage(MessageHandler.MSG_CHANGE_CAMERA_CAPABILITIES,
cameraCapabilities).sendToTarget();
}
}
/** Default handler used to consolidate binder method calls onto a single thread. */
private final class MessageHandler extends Handler {
private static final int MSG_RECEIVE_SESSION_MODIFY_REQUEST = 1;
private static final int MSG_RECEIVE_SESSION_MODIFY_RESPONSE = 2;
private static final int MSG_HANDLE_CALL_SESSION_EVENT = 3;
private static final int MSG_CHANGE_PEER_DIMENSIONS = 4;
private static final int MSG_CHANGE_CALL_DATA_USAGE = 5;
private static final int MSG_CHANGE_CAMERA_CAPABILITIES = 6;
private static final int MSG_CHANGE_VIDEO_QUALITY = 7;
public MessageHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
if (mCallback == null) {
return;
}
SomeArgs args;
switch (msg.what) {
case MSG_RECEIVE_SESSION_MODIFY_REQUEST:
mCallback.onSessionModifyRequestReceived((VideoProfile) msg.obj);
break;
case MSG_RECEIVE_SESSION_MODIFY_RESPONSE:
args = (SomeArgs) msg.obj;
try {
int status = (int) args.arg1;
VideoProfile requestProfile = (VideoProfile) args.arg2;
VideoProfile responseProfile = (VideoProfile) args.arg3;
mCallback.onSessionModifyResponseReceived(
status, requestProfile, responseProfile);
} finally {
args.recycle();
}
break;
case MSG_HANDLE_CALL_SESSION_EVENT:
mCallback.onCallSessionEvent((int) msg.obj);
break;
case MSG_CHANGE_PEER_DIMENSIONS:
args = (SomeArgs) msg.obj;
try {
int width = (int) args.arg1;
int height = (int) args.arg2;
mCallback.onPeerDimensionsChanged(width, height);
} finally {
args.recycle();
}
break;
case MSG_CHANGE_CALL_DATA_USAGE:
mCallback.onCallDataUsageChanged((long) msg.obj);
break;
case MSG_CHANGE_CAMERA_CAPABILITIES:
mCallback.onCameraCapabilitiesChanged(
(VideoProfile.CameraCapabilities) msg.obj);
break;
case MSG_CHANGE_VIDEO_QUALITY:
mVideoQuality = msg.arg1;
mCallback.onVideoQualityChanged(msg.arg1);
break;
default:
break;
}
}
};
private Handler mHandler;
VideoCallImpl(IVideoProvider videoProvider, String callingPackageName, int targetSdkVersion)
throws RemoteException {
mVideoProvider = videoProvider;
mVideoProvider.asBinder().linkToDeath(mDeathRecipient, 0);
mBinder = new VideoCallListenerBinder();
mVideoProvider.addVideoCallback(mBinder);
mCallingPackageName = callingPackageName;
setTargetSdkVersion(targetSdkVersion);
}
@VisibleForTesting
public void setTargetSdkVersion(int sdkVersion) {
mTargetSdkVersion = sdkVersion;
}
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 127403196)
public void destroy() {
unregisterCallback(mCallback);
try {
mVideoProvider.asBinder().unlinkToDeath(mDeathRecipient, 0);
} catch (NoSuchElementException nse) {
// Already unlinked in binderDied above.
}
}
/** {@inheritDoc} */
public void registerCallback(VideoCall.Callback callback) {
registerCallback(callback, null);
}
/** {@inheritDoc} */
public void registerCallback(VideoCall.Callback callback, Handler handler) {
mCallback = callback;
if (handler == null) {
mHandler = new MessageHandler(Looper.getMainLooper());
} else {
mHandler = new MessageHandler(handler.getLooper());
}
}
/** {@inheritDoc} */
public void unregisterCallback(VideoCall.Callback callback) {
if (callback != mCallback) {
return;
}
mCallback = null;
try {
mVideoProvider.removeVideoCallback(mBinder);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setCamera(String cameraId) {
try {
Log.w(this, "setCamera: cameraId=%s, calling=%s", cameraId, mCallingPackageName);
mVideoProvider.setCamera(cameraId, mCallingPackageName, mTargetSdkVersion);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setPreviewSurface(Surface surface) {
try {
mVideoProvider.setPreviewSurface(surface);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setDisplaySurface(Surface surface) {
try {
mVideoProvider.setDisplaySurface(surface);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setDeviceOrientation(int rotation) {
try {
mVideoProvider.setDeviceOrientation(rotation);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setZoom(float value) {
try {
mVideoProvider.setZoom(value);
} catch (RemoteException e) {
}
}
/**
* Sends a session modification request to the video provider.
* <p>
* The {@link InCallService} will create the {@code requestProfile} based on the current
* video state (i.e. {@link Call.Details#getVideoState()}). It is, however, possible that the
* video state maintained by the {@link InCallService} could get out of sync with what is known
* by the {@link android.telecom.Connection.VideoProvider}. To remove ambiguity, the
* {@link VideoCallImpl} passes along the pre-modify video profile to the {@code VideoProvider}
* to ensure it has full context of the requested change.
*
* @param requestProfile The requested video profile.
*/
public void sendSessionModifyRequest(VideoProfile requestProfile) {
try {
VideoProfile originalProfile = new VideoProfile(mVideoState, mVideoQuality);
mVideoProvider.sendSessionModifyRequest(originalProfile, requestProfile);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void sendSessionModifyResponse(VideoProfile responseProfile) {
try {
mVideoProvider.sendSessionModifyResponse(responseProfile);
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void requestCameraCapabilities() {
try {
mVideoProvider.requestCameraCapabilities();
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void requestCallDataUsage() {
try {
mVideoProvider.requestCallDataUsage();
} catch (RemoteException e) {
}
}
/** {@inheritDoc} */
public void setPauseImage(Uri uri) {
try {
mVideoProvider.setPauseImage(uri);
} catch (RemoteException e) {
}
}
/**
* Sets the video state for the current video call.
* @param videoState the new video state.
*/
public void setVideoState(int videoState) {
mVideoState = videoState;
}
/**
* Get the video provider binder.
* @return the video provider binder.
*/
public IVideoProvider getVideoProvider() {
return mVideoProvider;
}
}