dmMediaConverter（dmsimpleapps.blogspot.jp/2014/04/dmmediaconverter.html）是跨平台的音视频转换工具，它也可以拆分合并视频。
dmMediaConverter is a crossplatform FFmpeg frontend (GUI) exposing some of its features. It is intended to be simple and easy to use but also to be able to achieve complex tasks. I have inspired myself from a lot of media converters like Handbrake, WinFF and MkvMergeGui. One feature was lacking from most of them, video stream copy (pass-through), that made me build this.
Ubuntu安装dmMediaConverter
下载地址：
https://drive.google.com/uc?id=0B1MiTYJef5a9VzVrRjBqSnVTT2c # 64位
https://drive.google.com/uc?id=0B1MiTYJef5a9Xy1nV3FYNlFzME0 # 32位
安装：
$ sudo dpkg -i dmmediaconverter_1.8.0_amd64.deb
运行：
$ dmmediaconverter
