求助：无需重启系统即可重启GStreamer管道或Argus Camera API的方法

各位大佬好，我现在碰到一个特别棘手的问题：我的C相机应用偶尔会崩溃，崩溃之后根本没法直接重启，目前唯一能解决的办法就是重启整个系统。我迫切希望能找到不用重启系统，就能重启Argus Camera API或者GStreamer管道的方法，让我的C应用可以正常重启运行。

问题详情 #

• 期望结果：无需重启系统，就能重启崩溃后的C++相机应用
• 实际情况：应用崩溃后必须重启系统才能再次运行

崩溃后报错日志 #

(Argus) Error EndOfFile: Unexpected error in reading socket (in src/rpc/socket/client/ClientSocketManager.cpp, function recvThreadCore(), line 266)
(Argus) Error EndOfFile: Receive worker failure, notifying 1 waiting threads (in src/rpc/socket/client/ClientSocketManager.cpp, function recvThreadCore(), line 340)
(Argus) Error InvalidState: Argus client is exiting with 1 outstanding client threads (in src/rpc/socket/client/ClientSocketManager.cpp, function recvThreadCore(), line 357)
(Argus) Error EndOfFile: Receiving thread terminated with error (in src/rpc/socket/client/ClientSocketManager.cpp, function recvThreadWrapper(), line 368)
(Argus) Error EndOfFile: Client thread received an error from socket (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 145)
(Argus) Error EndOfFile:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)
Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:791 Failed to create OutputStream
(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 96)
(Argus) Error InvalidState:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)
(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 96)
(Argus) Error InvalidState:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)
(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 96)
(Argus) Error InvalidState:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)
nvbuf_utils: Could not get EGL display connection

GST_ARGUS: Creating output stream

[ WARN:0] global /home/nvidia/host/build_opencv/nv_opencv/modules/videoio/src/cap_gstreamer.cpp (933) open OpenCV | GStreamer warning: Cannot query video position: status=0, value=-1, duration=-1

(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 96)
(Argus) Error InvalidState:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)
Error generated. /dvs/git/dirty/git-master_linux/multimedia/nvgstreamer/gst-nvarguscamera/gstnvarguscamerasrc.cpp, execute:751 Failed to create CaptureSession

[ WARN:0] global /home/nvidia/host/build_opencv/nv_opencv/modules/videoio/src/cap_gstreamer.cpp (933) open OpenCV | GStreamer warning: Cannot query video position: status=0, value=-1, duration=-1

Start grabbing

Press q to terminate

Press v for verbose

Press p to predict

ERROR! blank frame grabbed

(Argus) Error InvalidState: Receive thread is not running cannot send. (in src/rpc/socket/client/ClientSocketManager.cpp, function send(), line 96)
(Argus) Error InvalidState:  (propagating from src/rpc/socket/client/SocketClientDispatch.cpp, function dispatch(), line 91)

相机初始化相关代码 #

// 相机类构造函数
JetsonCamera::JetsonCamera(const std::string sensorID,
const std::string captureWidth,
const std::string captureHeight,
const std::string frameRate,
const std::string displayWidth,
const std::string displayHeight)
: cap_(buildGStreamerPipeline(sensorID,
captureWidth,
captureHeight,
frameRate,
displayWidth,
displayHeight),
cv::CAP_GSTREAMER)
{

}

// 构建GStreamer管道的方法
std::string JetsonCamera::buildGStreamerPipeline(
const std::string sensorID,
const std::string captureWidth,
const std::string captureHeight,
const std::string frameRate,
const std::string displayWidth,
const std::string displayHeight)
{
std::stringstream pipeline;
pipeline << "nvarguscamerasrc sensor-id=" << sensorID << " ! "
<< "video/x-raw(memory:NVMM),width=(int)" << captureWidth << ",height=(int)" << captureHeight << ",format=(string)NV12,framerate=(fraction)" << frameRate << "/1 ! "
<< "nvvidconv flip-method=0 ! "
<< "video/x-raw,width=(int)" << displayWidth << ",height=(int)" << displayHeight << ",format=(string)BGRx ! "
<< "videoconvert ! "
<< "video/x-raw,format=(string)BGR ! "
<< "appsink";
return pipeline.str();
}

有没有大佬知道怎么在不重启系统的情况下，清理Argus的残留资源或者重启GStreamer管道，让我的应用能正常重启？万分感谢！

备注：内容来源于stack exchange，提问作者Jason Rich Darmawan