Description of VidTrim - Video Editor
VidTrim is a video editor and organiser for Android. It includes multiple features like trimming, merging, frame grabbing, video effects, extract audio (convert to MP3) and transcoding (compress and convert to MP4). You can also share your videos with your friends directly through the app.
Best Video Editing Application for Android - Phonesavvy.com
Uses FFmpeg under permission of LGPL.