This app is half baked. Not for beginners (this is, after all, a command line interface to well known ffmpeg video/audio converter tool, so if you don't know what "a command line" is, don't even thing about installing it). On the other hand, too limited for power users. In ffmpeg, some parameters have to be specified before the input file specification, and in this app, this is not possible, so some jobs that you can do in your PC are impossible to run with this app. It also breaks processing when screen orientation changes, and the progress bar is not reliable. Quite fast otherwise.
Unreliable notification process If I switch to another app too long, it restarts conversation during middle of current. Also that webm thing to mp4 was my error with resolution not being supported with player.
It allows you to customize the conversion directly at ffmpeg command line level, and it's one of the very few to support x264. Too bad it doesn't support batch conversion, and the filters are limited.
When you want control over the trans/reencode, this is it. Is there any chance of compiling in subtitle support? I would like to be able to embed the GPS data (from .srt files) over my dashcam videos.
This is golden. Ffmpeg in itself is win. Good attempt at creating a UI, a hard feat with the tonne of options available to ffmpeg. Ability to create custom profiles (for your favorable commands) is also good. This tool will be seen very useful to anyone familar with ffmpeg, but not to anyone expecting point a click conversions.
Flexible, maybe too flexible? There are a number of presets that make this okay to use for novices, but it's much better for those who are already comfortable with ffmpeg command line syntax. If you are, this is very powerful.
Compatibility with Android 6