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/*
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
package org.appspot.apprtc;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.io.File;
import java.io.IOException;
import org.webrtc.PeerConnection;
public class RtcEventLog {
private static final String TAG = "RtcEventLog";
private static final int OUTPUT_FILE_MAX_BYTES = 10_000_000;
private final PeerConnection peerConnection;
private RtcEventLogState state = RtcEventLogState.INACTIVE;
enum RtcEventLogState {
INACTIVE,
STARTED,
STOPPED,
}
public RtcEventLog(PeerConnection peerConnection) {
if (peerConnection == null) {
throw new NullPointerException("The peer connection is null.");
}
this.peerConnection = peerConnection;
}
public void start(final File outputFile) {
if (state == RtcEventLogState.STARTED) {
Log.e(TAG, "RtcEventLog has already started.");
return;
}
final ParcelFileDescriptor fileDescriptor;
try {
fileDescriptor = ParcelFileDescriptor.open(outputFile,
ParcelFileDescriptor.MODE_READ_WRITE | ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE);
} catch (IOException e) {
Log.e(TAG, "Failed to create a new file", e);
return;
}
// Passes ownership of the file to WebRTC.
boolean success =
peerConnection.startRtcEventLog(fileDescriptor.detachFd(), OUTPUT_FILE_MAX_BYTES);
if (!success) {
Log.e(TAG, "Failed to start RTC event log.");
return;
}
state = RtcEventLogState.STARTED;
Log.d(TAG, "RtcEventLog started.");
}
public void stop() {
if (state != RtcEventLogState.STARTED) {
Log.e(TAG, "RtcEventLog was not started.");
return;
}
peerConnection.stopRtcEventLog();
state = RtcEventLogState.STOPPED;
Log.d(TAG, "RtcEventLog stopped.");
}
}