【发布时间】：2016-02-10 15:44:18
【问题描述】：
我正在使用 WebRTC Demo 应用程序为 android 开发 webrtc 客户端。
虽然我使用 org.webrtc 库来开发客户端，但在运行自己的客户端时遇到了问题。
当我运行我的客户端时，下面是我得到的 logcat（完整 logcat 的一部分）
2-10 18:32:49.260 7669-9530/org.appspot.apprtc I/libjingle: (opensslidentity.cc:47): Making key pair
02-10 18:32:49.261 7669-9531/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1127): Signaling thread JavaCallback
02-10 18:32:49.261 7669-9531/org.appspot.apprtc I/org.webrtc.Logging: PeerConnectionFactory: onSignalingThreadReady
02-10 18:32:49.261 7669-9527/org.appspot.apprtc D/PCRTCClient: Peer connection factory created.
02-10 18:32:49.263 7669-9527/org.appspot.apprtc D/PCRTCClient: Create peer connection.
02-10 18:32:49.264 7669-9527/org.appspot.apprtc D/PCRTCClient: PCConstraints: mandatory: [], optional: [DtlsSrtpKeyAgreement: true]
02-10 18:32:49.264 7669-9527/org.appspot.apprtc D/PCRTCClient: VideoConstraints: mandatory: [minWidth: 1280, maxWidth: 1280, minHeight: 720, maxHeight: 720, minFrameRate: 30, maxFrameRate: 30], optional: []
02-10 18:32:49.264 7669-9527/org.appspot.apprtc D/PCRTCClient: EGLContext: org.webrtc.EglBase14$Context@35e6316b
02-10 18:32:49.264 7669-9527/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1382): Set EGL context for HW encoding.
02-10 18:32:49.264 7669-9527/org.appspot.apprtc I/MediaCodecVideo: MediaCodecVideo: MediaCodecVideoEncoderFactory::SetEGLContext
02-10 18:32:49.264 7669-9527/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1391): Set EGL context for HW decoding.
02-10 18:32:49.264 7669-9527/org.appspot.apprtc I/MediaCodecVideo: MediaCodecVideo: MediaCodecVideoDecoderFactory::SetEGLContext
02-10 18:32:49.265 7669-9527/org.appspot.apprtc A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 9527 (Thread-13274)
当我运行 WebRTC Demo 应用程序时，我得到以下 logcat：
02-10 18:34:44.849 9621-10486/org.appspot.apprtc D/de.tavendo.autobahn.WebSocketConnection: WebSocket connection created.
02-10 18:34:44.850 9621-9621/org.appspot.apprtc D/CallRTCClient: Creating peer connection, delay=754ms
02-10 18:34:44.858 9621-9621/org.appspot.apprtc D/CallRTCClient: Creating OFFER...
02-10 18:34:45.031 9621-10500/org.appspot.apprtc I/libjingle: (opensslidentity.cc:88): Returning key pair
02-10 18:34:45.031 9621-10500/org.appspot.apprtc I/libjingle: (opensslidentity.cc:95): Making certificate for WebRTC
02-10 18:34:45.034 9621-10500/org.appspot.apprtc I/libjingle: (opensslidentity.cc:143): Returning certificate
02-10 18:34:45.035 9621-10500/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1123): Worker thread JavaCallback
02-10 18:34:45.035 9621-10500/org.appspot.apprtc I/org.webrtc.Logging: PeerConnectionFactory: onWorkerThreadReady
02-10 18:34:45.037 9621-10501/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1127): Signaling thread JavaCallback
02-10 18:34:45.037 9621-10501/org.appspot.apprtc I/org.webrtc.Logging: PeerConnectionFactory: onSignalingThreadReady
02-10 18:34:45.037 9621-10498/org.appspot.apprtc D/PCRTCClient: Peer connection factory created.
02-10 18:34:45.040 9621-10498/org.appspot.apprtc I/org.webrtc.Logging: MediaCodecVideoEncoder: Found target encoder for mime video/x-vnd.on2.vp8 : OMX.qcom.video.encoder.vp8. Color: 0x15
02-10 18:34:45.040 9621-10498/org.appspot.apprtc D/PCRTCClient: Create peer connection.
02-10 18:34:45.040 9621-10498/org.appspot.apprtc D/PCRTCClient: PCConstraints: mandatory: [], optional: [DtlsSrtpKeyAgreement: true]
02-10 18:34:45.040 9621-10498/org.appspot.apprtc D/PCRTCClient: VideoConstraints: mandatory: [minWidth: 1280, maxWidth: 1280, minHeight: 720, maxHeight: 720], optional: []
02-10 18:34:45.040 9621-10498/org.appspot.apprtc D/PCRTCClient: EGLContext: org.webrtc.EglBase14$Context@322112a
02-10 18:34:45.040 9621-10498/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1382): Set EGL context for HW encoding.
02-10 18:34:45.040 9621-10498/org.appspot.apprtc I/MediaCodecVideo: MediaCodecVideo: MediaCodecVideoEncoderFactory::SetEGLContext
02-10 18:34:45.040 9621-10498/org.appspot.apprtc I/libjingle: (peerconnection_jni.cc:1391): Set EGL context for HW decoding.
02-10 18:34:45.040 9621-10498/org.appspot.apprtc I/MediaCodecVideo: MediaCodecVideo: MediaCodecVideoDecoderFactory::SetEGLContext
我的客户在某个点上崩溃了
02-10 18:32:49.264 7669-9527/org.appspot.apprtc I/MediaCodecVideo: MediaCodecVideo: MediaCodecVideoDecoderFactory::SetEGLContext
02-10 18:32:49.265 7669-9527/org.appspot.apprtc A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 9527 (Thread-13274)
但 WebRTC Demo 运行正常。
我观察到的差异如下：
从 logcat 中可以看出，我的客户端无法生成 opensslidentity certificate for WebRTC。
我的客户端卡在
2-10 18:32:49.260 7669-9530/org.appspot.apprtc I/libjingle: (opensslidentity.cc:47): Making key pair
但是，演示应用程序能够做到这一点。
我想知道为什么我的客户无法制作证书？
【问题讨论】：