Error on import video

Problem/Motivation

>  [error]  ImageMagick error 1: identify: delegate failed `'ffmpeg' -nostdin -v -1 -i '%i' -vframes %S -vcodec pam -an -f rawvideo -y '%u.pam' 2> '%u'' @ error/delegate.c/InvokeDelegate/1928.
>  [command: /usr/bin/identify -format 'format:%[magick]|width:%[width]|height:%[height]|colorspace:%[colorspace]|profiles:%[profiles]|exif_orientation:%[EXIF:Orientation]\n' '/public_html/web/sites/default/files/video/toskana.mp4'] 
>  [error]  ImageMagick error 1: identify: delegate failed `'ffmpeg' -nostdin -v -1 -i '%i' -vframes %S -vcodec pam -an -f rawvideo -y '%u.pam' 2> '%u'' @ error/delegate.c/InvokeDelegate/1928.
>  [command: /usr/bin/identify -format 'format:%[magick]|width:%[width]|height:%[height]|colorspace:%[colorspace]|profiles:%[profiles]|exif_orientation:%[EXIF:Orientation]\n' '/public_html/web/sites/default/files/video/toskana.mp4'] 
>  [notice] Imported content toskana.mp4 (file: 18).
> 
> In TypedDataManager.php line 196:
>                               
>   Property value is unknown.  
>                               
> 

In ProcessBase.php line 155:
                    
  Output is empty.  
                    

Steps to reproduce

Setup imagemagick as image toolkit.
Add video field
drush csi