好不容易安装完OpenPose，运行一下demo，发现出现以下问题：
Starting pose estimation demo.
Unable to stop the stream: Inappropriate ioctl for device
terminate called after throwing an instance of 'std::runtime_error'
what():
Error:
VideoCapture (video) could not be opened for path: 'examples/media/video.avi'.
Coming from:
- src/openpose/producer/videoCaptureReader.cpp:VideoCaptureReader():33
- src/openpose/producer/videoCaptureReader.cpp:VideoCaptureReader():37
Aborted (core dumped)
是不是很崩溃？没关系，重新编译安装一下OpenCV就好了。
https://github.com/CMU-Perceptual-Computing-Lab/openpose/issues/41
在官方github的issue中，作者提到可能是OpenCV的问题。果然重新编译一下就好了，估计是cuda的问题。