Mac unable to read camera

[lucasjinreal]

imageio/plugins/ffmpeg.py", line 475, in _initialize
    raise IndexError(
IndexError: No (working) camera at <video0>.

[FirefoxMetzger]

Mac has tighter security than the other OSes. Did you double-check that you gave permission to the shell executing the python script/interpreter to access your webcam?

[FirefoxMetzger]

@jinfagang Did you manage to solve the issue? If not, could you provide some more detail so that we can try to reproduce the behavior locally?

(As with similar issues in the past, if I don't hear from you in the next couple of days, I will close this issue as solved. However, you can simply comment if it persists and I can reopen.)

[almarklein]

I can reproduce this. Could you try iio.get_reader('<video0>', fps=30)?

[almarklein]

This relates to #699. It was me who proposed to set the default framerate to 15, because earlier reports from mac users indicated that that was necessary.