Qt借助ffmpeg通过rtsp直播，实现了网络摄像头的直播，最多支持16路视频流。但是，线程控制的不好，在重新打开视频流时，内存会出错，程序崩溃。-Qt With ffmpeg through rtmp live broadcast to achieve a webcam, supports up to 16 video streams. However, the thread control is not good, when you reopen the video stream, mem