hipersayanX

Try writing this line [here](https://github.com/webcamoid/webcamoid/blob/62cbc374e1e25ff1c48eaa6d8e0edd63c95de6b7/libAvKys/Plugins/MultiSink/src/multisinkelement.cpp#L114): ``` qDebug()

The problem is that I'm missing the FFmpeg configuration line, and I can't do blind debugging. Are you sure that did you enabled this line? ``` av_log_set_level(AV_LOG_TRACE); ``` The message...

Try selecting MP4, MPEG-4 part 2, ACC, and try recording, does it works?

If you select MP4 format, it show a different error message or it is still the same?

Also try replacing this line ``` // Print recording information. av_dump_format(this->d->m_formatContext, 0, this->m_location.toStdString().c_str(), 1); ``` with: ``` qDebug() d->m_formatContext, 0, this->m_location.toStdString().c_str(), 1); qDebug()

Its weird the av_dump_format is not printing nothing, I did not studied enough the FFmpeg source code, but could it be that av_log_set_level is setting AV_LOG_TRACE as a environment variable...

Also, can you try packaging this simple program and see if this works? ``` #include #include int main(void) { char *msg = NULL; setenv("msg", "Hello world!", 1); msg = getenv("msg");...

In Preferences/General options/Video capture, try switching the values either V4L2, V4L2 wrapper, or Qt. Also, you can try resetting the controls. Does the same happens with other programs?

You must [deploy the app](https://github.com/webcamoid/webcamoid/wiki/Deploy-and-create-self-contained-binary-packages), otherwise it won't work.

Does the bundle have these files? ``` Webcamoid.app/Contents/Plugins/platforms/libqcocoa.dylib Webcamoid.app/Contents/Plugins/platforms/libqminimal.dylib Webcamoid.app/Contents/Plugins/platforms/libqoffscreen.dylib ```