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ofxVideoRecorder isn't recording

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Hi, I've installed this addon on Ubuntu 12.04 64 bits, I have ffmpeg installed (the one from Ubuntu packages) since a while.

I can run ffmpeg commands from console and record the streaming from a webcam without problems in this way:

ffmpeg -f video4linux2 -r 25 -s 640x480 -i /dev/video0 out2.avi

However when run the example I got these errors, so any file is built:

"The video recorder failed to write some frames!"

"The video recorder failed to write some audio samples!"

I don't know if something related with codec issues or maybe a different version of ffmpeg as well, since Ubuntu version is a fork. I asked the same in github, but I haven't had any respnse yet and I need to solve this as soon as is possible.
I appreciate any hint to solve this.

Thanks


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