mirror of
https://github.com/nextcloud/talk-android
synced 2025-07-12 23:34:31 +01:00
302 lines
10 KiB
Java
302 lines
10 KiB
Java
/*
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* Nextcloud Talk application
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*
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* @author Mario Danic
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* Copyright (C) 2017 Mario Danic <mario@lovelyhq.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.nextcloud.talk.webrtc;
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import android.util.Log;
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import com.bluelinelabs.logansquare.LoganSquare;
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import com.nextcloud.talk.api.models.json.signaling.DataChannelMessage;
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import com.nextcloud.talk.api.models.json.signaling.NCIceCandidate;
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import com.nextcloud.talk.events.MediaStreamEvent;
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import com.nextcloud.talk.events.SessionDescriptionSendEvent;
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import org.greenrobot.eventbus.EventBus;
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import org.webrtc.DataChannel;
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import org.webrtc.IceCandidate;
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import org.webrtc.MediaConstraints;
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import org.webrtc.MediaStream;
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import org.webrtc.PeerConnection;
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import org.webrtc.PeerConnectionFactory;
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import org.webrtc.RtpReceiver;
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import org.webrtc.SdpObserver;
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import org.webrtc.SessionDescription;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.List;
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public class MagicPeerConnectionWrapper {
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private static String TAG = "MagicPeerConnectionWrapper";
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private static PeerConnection peerConnection;
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List<IceCandidate> iceCandidates = new ArrayList<>();
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private List<PeerConnection.IceServer> iceServers;
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private List<NCIceCandidate> localCandidates = new ArrayList<>();
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private String sessionId;
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private String localSession;
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private String nick;
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private MediaConstraints mediaConstraints;
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private DataChannel magicDataChannel;
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private MagicSdpObserver magicSdpObserver;
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private boolean audioOn;
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private boolean videoOn;
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public MagicPeerConnectionWrapper(PeerConnectionFactory peerConnectionFactory,
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List<PeerConnection.IceServer> iceServerList,
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MediaConstraints mediaConstraints,
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String sessionId, String localSession) {
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this.iceServers = iceServerList;
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peerConnection = peerConnectionFactory.createPeerConnection(iceServerList, mediaConstraints,
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new MagicPeerConnectionObserver());
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if (sessionId.compareTo(localSession) < 0) {
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DataChannel.Init init = new DataChannel.Init();
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init.negotiated = false;
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magicDataChannel = peerConnection.createDataChannel("status", init);
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magicDataChannel.registerObserver(new MagicDataChannelObserver());
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}
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this.sessionId = sessionId;
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this.localSession = localSession;
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this.mediaConstraints = mediaConstraints;
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magicSdpObserver = new MagicSdpObserver();
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}
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public void sendLocalCandidates() {
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for (NCIceCandidate ncIceCandidate : localCandidates) {
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EventBus.getDefault().post(new SessionDescriptionSendEvent(null, sessionId,
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"candidate", ncIceCandidate));
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}
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localCandidates = new ArrayList<>();
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}
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public void drainIceCandidates() {
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for (IceCandidate iceCandidate : iceCandidates) {
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peerConnection.addIceCandidate(iceCandidate);
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}
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iceCandidates = new ArrayList<>();
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}
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public MagicSdpObserver getMagicSdpObserver() {
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return magicSdpObserver;
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}
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public void addCandidate(IceCandidate iceCandidate) {
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if (peerConnection.getRemoteDescription() != null) {
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peerConnection.addIceCandidate(iceCandidate);
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} else {
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iceCandidates.add(iceCandidate);
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}
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}
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private void sendChannelData(DataChannelMessage dataChannelMessage) {
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ByteBuffer buffer = null;
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try {
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buffer = ByteBuffer.wrap(LoganSquare.serialize(dataChannelMessage).getBytes());
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magicDataChannel.send(new DataChannel.Buffer(buffer, false));
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} catch (IOException e) {
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Log.d(TAG, "Failed to send channel data");
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}
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}
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public PeerConnection getPeerConnection() {
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return peerConnection;
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}
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public static void setPeerConnection(PeerConnection peerConnection) {
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MagicPeerConnectionWrapper.peerConnection = peerConnection;
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}
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public String getSessionId() {
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return sessionId;
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}
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public void setSessionId(String sessionId) {
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this.sessionId = sessionId;
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}
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public String getNick() {
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return nick;
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}
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public void setNick(String nick) {
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this.nick = nick;
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}
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private class MagicDataChannelObserver implements DataChannel.Observer {
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@Override
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public void onBufferedAmountChange(long l) {
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}
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@Override
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public void onStateChange() {
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if (magicDataChannel.state().equals(DataChannel.State.OPEN) &&
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magicDataChannel.label().equals("status")) {
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sendChannelData(new DataChannelMessage("videoOn"));
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sendChannelData(new DataChannelMessage("audioOn"));
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}
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}
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@Override
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public void onMessage(DataChannel.Buffer buffer) {
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if (buffer.binary) {
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Log.d(TAG, "Received binary msg over " + TAG + " " + sessionId);
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return;
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}
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ByteBuffer data = buffer.data;
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final byte[] bytes = new byte[data.capacity()];
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data.get(bytes);
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String strData = new String(bytes);
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Log.d(TAG, "Got msg: " + strData + " over " + TAG + " " + sessionId);
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// We use media stream to determine if audio or video is on rather than data
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// channel messages
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}
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}
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private class MagicPeerConnectionObserver implements PeerConnection.Observer {
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private final String TAG = "MagicPeerConnectionObserver";
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@Override
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public void onSignalingChange(PeerConnection.SignalingState signalingState) {
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}
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@Override
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public void onIceConnectionChange(PeerConnection.IceConnectionState iceConnectionState) {
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}
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@Override
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public void onIceConnectionReceivingChange(boolean b) {
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}
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@Override
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public void onIceGatheringChange(PeerConnection.IceGatheringState iceGatheringState) {
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}
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@Override
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public void onIceCandidate(IceCandidate iceCandidate) {
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NCIceCandidate ncIceCandidate = new NCIceCandidate();
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ncIceCandidate.setSdpMid(iceCandidate.sdpMid);
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ncIceCandidate.setSdpMLineIndex(iceCandidate.sdpMLineIndex);
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ncIceCandidate.setCandidate(iceCandidate.sdp);
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/*if (peerConnection.getRemoteDescription() == null) {
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localCandidates.add(ncIceCandidate);
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} else {
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EventBus.getDefault().post(new SessionDescriptionSendEvent(null, sessionId,
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"candidate", ncIceCandidate));
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}*/
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EventBus.getDefault().post(new SessionDescriptionSendEvent(null, sessionId,
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"candidate", ncIceCandidate));
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}
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@Override
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public void onIceCandidatesRemoved(IceCandidate[] iceCandidates) {
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}
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@Override
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public void onAddStream(MediaStream mediaStream) {
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videoOn = mediaStream.videoTracks.size() == 1;
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audioOn = mediaStream.audioTracks.size() == 1;
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EventBus.getDefault().post(new MediaStreamEvent(mediaStream, sessionId));
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}
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@Override
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public void onRemoveStream(MediaStream mediaStream) {
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videoOn = mediaStream.videoTracks.size() == 1;
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audioOn = mediaStream.audioTracks.size() == 1;
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}
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@Override
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public void onDataChannel(DataChannel dataChannel) {
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if (dataChannel.label().equals("status")) {
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magicDataChannel = dataChannel;
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magicDataChannel.registerObserver(new MagicDataChannelObserver());
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}
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}
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@Override
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public void onRenegotiationNeeded() {
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}
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@Override
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public void onAddTrack(RtpReceiver rtpReceiver, MediaStream[] mediaStreams) {
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}
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}
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private class MagicSdpObserver implements SdpObserver {
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private final String TAG = "MagicSdpObserver";
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@Override
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public void onCreateFailure(String s) {
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Log.d(TAG, s);
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}
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@Override
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public void onSetFailure(String s) {
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Log.d(TAG, s);
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}
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@Override
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public void onCreateSuccess(SessionDescription sessionDescription) {
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peerConnection.setLocalDescription(magicSdpObserver, sessionDescription);
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}
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@Override
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public void onSetSuccess() {
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if (peerConnection.getRemoteDescription() == null) {
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EventBus.getDefault().post(new SessionDescriptionSendEvent(peerConnection.getLocalDescription(), sessionId,
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peerConnection.getLocalDescription().type.canonicalForm(), null));
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} else if (peerConnection.getLocalDescription() == null && peerConnection.getRemoteDescription().type
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.canonicalForm().equals
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("offer")) {
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peerConnection.createAnswer(magicSdpObserver, mediaConstraints);
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} else if ((peerConnection.getLocalDescription() != null && peerConnection.getRemoteDescription().type
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.canonicalForm().equals
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("offer"))) {
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EventBus.getDefault().post(new SessionDescriptionSendEvent(peerConnection.getLocalDescription(), sessionId,
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peerConnection.getLocalDescription().type.canonicalForm(), null));
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} else if (peerConnection.getRemoteDescription() != null) {
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drainIceCandidates();
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sendLocalCandidates();
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}
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}
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}
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}
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