我正在尝试在 Android 上实现 WebRTC DataChannel。我想创建一个简单的对等连接对象，它将打开 DataChannel 以使用 WebRTC 通过网络发送数据。当我尝试创建 PeerConnection 对象时出现错误。我了解到我们使用工厂来创建对等连接对象factory.createPeerConnection().
为此，我必须首先创建 PeerConnectionFactory 对象。之后，我可以使用它来创建 PeerConnection 对象。我收到错误Could not find method android.media.MediaCodec.setParameters and Fatal Signal 11 (SIGSEGV) at 0x00000000 (code=1)当我尝试创建 PeerConnectionFactory 对象时。我还尝试了以下代码PeerConnectionFactory.initializeAndroidGlobals(this, false, false, false);这就是我正在尝试做的：
PeerConnectionFactory factory = new PeerConnectionFactory();
peer = new Peer();
这就是我的 Peer 对象的样子：
public class Peer implements SdpObserver, PeerConnection.Observer, DataChannel.Observer {
private PeerConnection pc;
private DataChannel dc;
public Peer() {
this.pc = factory.createPeerConnection(RTCConfig.getIceServer(),
RTCConfig.getMediaConstraints(), this);
dc = this.pc.createDataChannel("sendDataChannel", new DataChannel.Init());
}
@Override
public void onAddStream(MediaStream arg0) {
// TODO Auto-generated method stub
}
@Override
public void onDataChannel(DataChannel dataChannel) {
this.dc = dataChannel;
}
@Override
public void onIceCandidate(final IceCandidate candidate) {
try {
JSONObject payload = new JSONObject();
payload.put("type", "candidate");
payload.put("label", candidate.sdpMLineIndex);
payload.put("id", candidate.sdpMid);
payload.put("candidate", candidate.sdp);
sendSocketMessageDataChannel(payload.toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIceConnectionChange(IceConnectionState iceConnectionState) {
}
@Override
public void onIceGatheringChange(IceGatheringState arg0) {
// TODO Auto-generated method stub
}
@Override
public void onRemoveStream(MediaStream arg0) {
// TODO Auto-generated method stub
}
@Override
public void onRenegotiationNeeded() {
// TODO Auto-generated method stub
}
@Override
public void onSignalingChange(SignalingState arg0) {
// TODO Auto-generated method stub
}
@Override
public void onCreateFailure(String msg) {
Toast.makeText(getApplicationContext(),
msg, Toast.LENGTH_SHORT)
.show();
}
@Override
public void onCreateSuccess(SessionDescription sdp) {
try {
JSONObject payload = new JSONObject();
payload.put("type", sdp.type.canonicalForm());
payload.put("sdp", sdp.description);
sendSocketMessageDataChannel(payload.toString());
pc.setLocalDescription(FilePeer.this, sdp);
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onSetFailure(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onSetSuccess() {
// TODO Auto-generated method stub
}
@Override
public void onMessage(Buffer data) {
Log.w("FILE", data.toString());
}
@Override
public void onStateChange() {
Toast.makeText(getApplicationContext(),
"State Got Changed", Toast.LENGTH_SHORT)
.show();
/*
byte[] bytes = new byte[10];
bytes[0] = 0;
bytes[1] = 1;
bytes[2] = 2;
bytes[3] = 3;
bytes[4] = 4;
bytes[5] = 5;
bytes[6] = 6;
bytes[7] = 7;
bytes[8] = 8;
bytes[9] = 9;
ByteBuffer buf = ByteBuffer.wrap(bytes);
Buffer b = new Buffer(buf, true);
dc.send(b);
*/
}
}
有人可以向我指出在 Android 上实现 DataChannel 的任何示例源代码吗？如果我没有以正确的方式做这件事，也请告诉我。我找不到 Android Native WebRTC 的文档来说明如何做到这一点。我正在尝试实现我从在网络上使用 WebRTC 中学到的一切。
如果我的问题不清楚，请告诉我。
