How to Install Avidemux 2.7.0 on Ubuntu 16.04, 17.04

   Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.

Avidemux is available for Linux, BSD, Mac OS X and Microsoft Windows under the GNU GPL license.

Avidemux 2.6.20 Changelog:

• Core: The bundled FFmpeg has been updated to version 3.0.7
• Core Encoder: A crash encoding MPEG-2 with B-frames disabled has been fixed
• Core Encoder: An error due to invalid decoding timestamps at the end of encoding with MPEG-2 has been fixed
• Core Audio: Sound issues including audio dropouts with AAC in MPEG TS fixed
• Core Audio: External AAC audio misidentified as E-AC3 fixed
• MKV Demuxer: FPS calculation improved
• MKV Demuxer: A crash with audio tracks using lacing extensively fixed
• MKV Muxer: The FPS value is set correctly now
• FLV Demuxer: File kept open preventing deletion fixed
• VPX Decoder: Swapped colors fixed, support for VP9 added
• macOS: Passing command line arguments to the application fixed
• VDPAU: Decode MPEG-1 instead of crashing
• Qt / Properties Dialog: A button to copy the data to clipboard added
• Qt / Filter Manager: Dynamically disable not applicable context menu entries in the list of active filters
• Qt / Filter Manager: Horizontal scrolling in the list of available filters eliminated
• Qt / MPlayer eq2 Plugin: The sliders on the right becoming squeezed horizontally fixed
• UI: File dialog not adding a file name extension when saving projects fixed (not in 64 bit builds for Windows yet)
• i18n: Russian and German translations updated (TotalCaesar659 / eumagga0x2a)
• Debug: Avidemux now prints the correct version string to the console or to the application log 

Installation instructions:

   The GetDeb repository contains the latest packages of Avidemux, available for Ubuntu 16.04,  Ubuntu 17.04 and derivatives.

1. Add the GetDeb repository via command:

$ sudo sh -c 'echo "deb http://archive.getdeb.net/ubuntu $(lsb_release -sc)-getdeb apps" >> /etc/apt/sources.list.d/getdeb.list'

For Linux Mint 18.x, replace $(lsb_release -sc) directly with xenial in the command. Type in your password when prompts and hit Enter.

2. Download and install the repository key via command:

$ wget -q -O- http://archive.getdeb.net/getdeb-archive.key | sudo apt-key add -

3. Running command update and install:

$ sudo apt-get update $ sudo apt-get install avidemux2.6-qt

(Optional) To remove Avidemux, use command:

$ sudo apt-get remove avidemux2.6-qt $ sudo apt-get autoremove

 refer original : https://howto-ubuntunew.blogspot.com/