From the Store description:
- Easily convert audio and video files from one format to another.
- Source Formats: .mov, .mp4, .wmv, .avi, .wma, .mp3, .m4a, .wav, .flac
- Target Formats: .mp4, .wmv, .avi, .wma, .mp3, .m4a, .wav (Some formats not available on Windows mobile)
- Add titles from images, video, or audio
- Add caption with images, video, or audio
- Generate titles and captions based on the media file metadata (like title, subtitle, publisher, etc.)
- Transcode video to audio Create videos composed of other videos with background audio.
- Add transcode formats Transcoder with extensions: https://github.com/mscherotter/TranscoderExtension.
- Use Chroma-keying to overlay videos with transparent background when using Video Composition.
And it works on Windows 10 Mobile. Kind of. If you pick and choose your tasks carefully and if you understand where the results will end up and what you can do with them...
Here's Transcoder UWP in action:
In addition to rendering back to video, there's also the option to strip out video and export as an audio file, which is something I can see working after filming live music, for example.
Overall, this has a UI from the 1990s, but hey, working video tools are worth keeping around. It has prompted me to look again at more sophisticated video editing tools for Windows 10 Mobile, mind you. Watch this space.
You can grab this for free in the Store here - until the end of July 2017 - after that, it's a dollar(!)