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/**
* Copyright (C) 2022 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 com.android.telephony.imsmedia;
import android.os.Parcel;
import android.telephony.ims.RtpHeaderExtension;
import android.telephony.imsmedia.MediaQualityThreshold;
import android.telephony.imsmedia.VideoConfig;
import android.util.Log;
import android.view.Surface;
import java.util.List;
/** Video session implementation for internal AP based RTP stack. This handles
* all API calls from applications and passes it to native library.
*/
public class VideoLocalSession {
private static final String TAG = "VideoLocalSession";
private int mSessionId;
private long mNativeObject = 0;
/* Instantiates a new audio session based on AP RTP stack
*
* @param sessionId : session identifier
* @param nativeObject : jni object modifier for calling jni methods
*/
VideoLocalSession(final int sessionId, final long nativeObject) {
mSessionId = sessionId;
mNativeObject = nativeObject;
}
/** Returns the unique session identifier */
public int getSessionId() {
Log.d(TAG, "getSessionId");
return mSessionId;
}
/**
* Send request message with the corresponding arguments to libimsmediajni library to operate
*
* @param sessionId : session identifier
* @param parcel : parcel argument to send to jni
*/
public void sendRequest(final int sessionId, final Parcel parcel) {
if (mNativeObject != 0) {
if (parcel == null) return;
byte[] data = parcel.marshall();
JNIImsMediaService.sendMessage(mNativeObject, sessionId, data);
parcel.recycle();
}
}
/**
* Modifies the configuration of the RTP session after the session is opened.
* It can be used modify the direction, access network, codec parameters
* RTCP configuration, remote address and remote port number. The service will
* apply if anything changed in this invocation compared to previous and respond
* the updated the config in ImsMediaSession#onModifySessionResponse() API
*
* @param config provides remote end point info and codec details
*/
public void modifySession(final VideoConfig config) {
Log.d(TAG, "modifySession: " + config);
Parcel parcel = Parcel.obtain();
parcel.writeInt(VideoSession.CMD_MODIFY_SESSION);
if (config != null) {
config.writeToParcel(parcel, 0);
}
sendRequest(mSessionId, parcel);
}
/**
* Send preview Surface to session to display video tx preview in video streaming.
* The setPreviewSurafce should be invoked after openSession or modifySession.
*
* @param surface the surface to set
*/
public void setPreviewSurface(final Surface surface) {
if (mNativeObject != 0) {
JNIImsMediaService.setPreviewSurface(mNativeObject, mSessionId, surface);
}
}
/**
* Send display Surface to session to display video rx decoded frames in video streaming.
* The setDisplaySurface should be invoked after openSession or modifySession.
*
* @param surface the surface to set
*/
public void setDisplaySurface(final Surface surface) {
if (mNativeObject != 0) {
JNIImsMediaService.setDisplaySurface(mNativeObject, mSessionId, surface);
}
}
/**
* Sets the media quality threshold parameters of the session to get
* media quality notifications.
*
* @param threshold media quality thresholds for various quality
* parameters
*/
public void setMediaQualityThreshold(final MediaQualityThreshold threshold) {
Log.d(TAG, "setMediaQualityThreshold: " + threshold);
Parcel parcel = Parcel.obtain();
parcel.writeInt(VideoSession.CMD_SET_MEDIA_QUALITY_THRESHOLD);
if (threshold != null) {
threshold.writeToParcel(parcel, 0);
}
sendRequest(mSessionId, parcel);
}
/**
* Send RTP header extension to the other party in the next RTP packet.
*
* @param extensions List of RTP header extensions to be transmitted
*/
public void sendHeaderExtension(final List<RtpHeaderExtension> extensions) {
Log.d(TAG, "sendHeaderExtension");
// TODO: add implementation
}
/**
* Request to report current video data usage to get the amount of data usage in current
* video streaming session.
*/
public void requestVideoDataUsage() {
Log.d(TAG, "requestVideoDataUsage");
Parcel parcel = Parcel.obtain();
parcel.writeInt(VideoSession.CMD_REQUEST_VIDEO_DATA_USAGE);
sendRequest(mSessionId, parcel);
}
}
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