VIDEOIO(cvCreateFileCapture_AVFoundation (filename)): raised unknown C++ exception! about opencv HOT 8 CLOSED

What version of OS X are you running?

from opencv.

I'm on el capitan 10.11.6

from opencv.

What type of file are you trying to open? If you can post an example file that displays the behavior somewhere online that will be helpful.

from opencv.

I am trying to open an rtsp url.
something more or less like the following:

VideoCapture capture = new VideoCapture();
capture.open("rtsp://192.168.2.208:1935/vod/sample-3.m4v");
if (capture.isOpened()) {
// some code here
}

the rtsp url comes from a wowza server running locally.
when i use the opencv 3.2.0 built manually everything works as expected.

Do you think this would cause issues on other architectures? because I am planning on running this code on an amazon ec2 instance running amazon linux

from opencv.

It will depend a lot on which codecs are compiled in to the build, and may depend on if the required codecs are installed on the target machine. I suggest you distribute your own build of opencv with your application to be sure. This package does not include very many codecs as it's primary purpose is machine vision, not video decoding. I suspect that the error you are getting is due to ffmpeg not being included in this build.

from opencv.

I am sure that what I need requires ffmpeg, how can I create a PR that has ffmpeg included since I am really interested in the convenience of maven

from opencv.

See https://github.com/openpnp/opencv/blob/develop/RELEASE.md for the instructions that I follow when building a release. If you can update that with information about how to build with ffmpeg (and other required dependencies) then I will do a new release based on that. You may also want to take a look at #13 since it is also a request for more included libraries.

One thing I am not sure about, and maybe you can look into, is whether we need to distribute the ffmpeg binaries with the library, or if they can be statically linked. I vaguely remember there being some kind of licensing issue with distributing ffmpeg, so we need to be aware of that as well.

from opencv.

I've decided not to include ffmpeg in this distribution. It's difficult enough to keep up with releases of OpenCV itself - adding other artifacts just isn't going to happen.

from opencv.