Transmageddon: Linux video transcoder

Transmageddon is a fresh video converter for Linux. It uses GStreamer in the backend. The author has announced the first release yesterday. The goal of this software is to provide a very easy interface to users for transcoding videos into formats recognized by their devices. As this is just the first release there are many exciting features in the TODO list which are yet to be implemented. One of the features already implemented is video rotation which is very useful but not commonly exposed by GUI based transcoder interfaces. Transmageddon supports all formats supported by GStreamer.

To install Transmageddon on Ubuntu, run:

$ sudo apt-get install transmageddon

Webpage: Transmageddon

Rotate videos using HandBrake

handbrake_compRecently I recorded a video with my mobile inverted. When searching for a tool to undo the rotation I found that HandBrake can do what I wanted. HandBrake is a very popular and powerful multiplatform transcoder that gives fantastic output video and audio qualities at a smaller size if the right parameters are used. It has both GUI and CLI modes. There are many powerful switches in the CLI mode. For example to rotate a video by 90° clockwise, try the following command:

$ HandBrakeCLI -i input.mp4 -o output.mkv --preset=Custom --rotate=4

where Custom is one of the presets you saved in the GUI mode.

You can do the same from the GUI as well, add the following to Video ▸ Extra options (available only for x264 on Linux):

Custom --rotate=4