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