Hello
I have made the conversion test and I have the following error

warning: Parameter 1 to theme_ffmpeg_wrapper_files_radios() expected to be a reference, value given in /var/www/drupal1/includes/theme.inc on line 656.

and I have a duplication of the file I have converted

This allows you to test a configuration on a file that you specify as the input file. Additional files can be added in the directory:
sites/all/modules/ffmpeg_wrapper/test/pub oasis-1.mp4
sites/default/files/ffmpeg_wrapper_test_output/pub oasis-1.mp4.flv
sites/all/modules/ffmpeg_wrapper/test/pub oasis-1.mp4
sites/default/files/ffmpeg_wrapper_test_output/pub oasis-1.mp4.flv
pub oasis-1.mp48.64 MBvideo/mp4pub oasis-1.mp4.flv8.46 MBvideo/x-flv