调用stopPreview(关闭Camera预览).so报错，程序崩溃 项目很着急，求救呀

[ChenChao1991]

调用代码： public void stopPreview(Context context) { if (DEBUG) Log.e(TAG, "stopPreview开始"); removeMessages(MSG_PREVIEW_START); if (isRecording()) { stopRecording(); } if (isPreviewing()) { final CameraThread thread = mWeakThread.get(); if (thread == null) return; synchronized (thread.mSync) { sendEmptyMessage(MSG_PREVIEW_STOP); if (DEBUG) Log.e(TAG, "MSG_PREVIEW_STOP"); if (!isCameraThread()) { // wait for actually preview stopped to avoid releasing Surface/SurfaceTexture while preview is still running. therefore this method will take a time to execute try { if (DEBUG) Log.e(TAG, "wait(...开始...)"); thread.mSync.wait(); if (DEBUG) Log.e(TAG, "wait(...完成...)"); } catch (InterruptedException e) { e.printStackTrace(); if (DEBUG) Log.e(TAG, "wait(...InterruptedException...)"); // 恢复中断状态 thread.interrupt(); thread.currentThread().interrupt(); if (DEBUG) Log.e(TAG, e.toString()); Toast.makeText(context, "===" + e.toString() + "===", Toast.LENGTH_LONG).show(); } } } } if (DEBUG) Log.e(TAG, "stopPreview:完成"); } 报错日志：

Thread-2374(2374) SIGABRT 1 #00 pc 0003c3c4 /system/lib/libc.so (tgkill+12) [armeabi-v7a] 2 #1 pc 00016dad /system/lib/libc.so (pthread_kill+52) [armeabi-v7a] 3 #2 pc 000179bf /system/lib/libc.so (raise+10) [armeabi-v7a] 4 #3 pc 00014165 /system/lib/libc.so (libc_android_abort+36) [armeabi-v7a] 5 #4 pc 000124ec /system/lib/libc.so (abort+4) [armeabi-v7a] 6 #5 pc 00228837 /system/lib/libart.so (art::Runtime::Abort()+170) [armeabi-v7a] 7 #6 pc 000a6a35 /system/lib/libart.so (art::LogMessage::~LogMessage()+1360) [armeabi-v7a] 8 #7 pc 000b11d7 /system/lib/libart.so (art::JniAbort(char const, char const)+1118) [armeabi-v7a] 9 #8 pc 000b1715 /system/lib/libart.so (art::JniAbortF(char const, char const, ...)+68) [armeabi-v7a] 10 #9 pc 001acabb /system/lib/libart.so (art::JNI::CallVoidMethodV(JNIEnv, _jobject, _jmethodID, std::_va_list)+598) [armeabi-v7a] 11 #10 pc 00011578 /data/app/com.techmation.hotelrobot-1/lib/arm/libUVCCamera.so (_JNIEnv::CallVoidMethod(_jobject, _jmethodID, ...)+52) [armeabi-v5te] 12 #11 pc 00011498 /data/app/com.techmation.hotelrobot-1/lib/arm/libUVCCamera.so (UVCPreview::do_capture_callback(_JNIEnv, uvc_frame)+252) [armeabi-v5te] 13 #12 pc 0001113c /data/app/com.techmation.hotelrobot-1/lib/arm/libUVCCamera.so (UVCPreview::do_capture(_JNIEnv)+144) [armeabi-v5te] 14 #13 pc 00010b7c /data/app/com.techmation.hotelrobot-1/lib/arm/libUVCCamera.so (UVCPreview::capture_thread_func(void)+64) [armeabi-v5te] 15 #14 pc 0001659b /system/lib/libc.so (__pthread_start(void)+30) [armeabi-v7a] 16 #15 pc 000144c3 /system/lib/libc.so (start_thread+6) [armeabi-v7a] main(1) 1 android.os.MessageQueue.nativePollOnce(Native Method) 2 android.os.MessageQueue.next(MessageQueue.java:143) 3 android.os.Looper.loop(Looper.java:122) 4 android.app.ActivityThread.main(ActivityThread.java:5284) 5 java.lang.reflect.Method.invoke(Native Method) 6 java.lang.reflect.Method.invoke(Method.java:372) 7 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:963) 8 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:758)

[Singleswolf]

同样的问题，有找到解决办法吗？

[zzJune]

请问解决了吗

[qwertxyz]

解决了吗？！

[sysylcf]

这个问题有解决了的吗？

[ChenChao1991]

没有。还是偶尔报错

------------------ 原始邮件 ------------------ 发件人: sysylcf <notifications@github.com> 发送时间: 2020年2月15日 08:32 收件人: saki4510t/UVCCamera <UVCCamera@noreply.github.com> 抄送: ChenChao1991 <530183536@qq.com>, Author <author@noreply.github.com> 主题: 回复：[saki4510t/UVCCamera] 调用stopPreview(关闭Camera预览).so报错，程序崩溃 项目很着急，求救呀 (#481)

[sysylcf]

没有。还是偶尔报错 … ------------------ 原始邮件 ------------------ 发件人: sysylcf <notifications@github.com> 发送时间: 2020年2月15日 08:32 收件人: saki4510t/UVCCamera <UVCCamera@noreply.github.com> 抄送: ChenChao1991 <530183536@qq.com>, Author <author@noreply.github.com> 主题: 回复：[saki4510t/UVCCamera] 调用stopPreview(关闭Camera预览).so报错，程序崩溃 项目很着急，求救呀 (#481)

你们通过android studio profiler 可以查看实时内存吗？

[shengjunhu]

修改UVCPreview.cpp#stopPreview(), 加锁即可 pthread_mutex_lock(&preview_mutex); pthread_cond_signal(&preview_sync); pthread_mutex_unlock(&preview_mutex);