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Anybody recommend a GUI app (preferably in Ubuntu repos) to convert from .flv to .mp4 other than Transmageddon? Transmageddon now crashes in Trusty.

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3  
Take a look at FFmpeg. –  Mitch Aug 1 '14 at 8:02
    
I used VLC a lot to transcode. I think it uses some of the LI tools from the other answers as underlying engines. But it provides a GUI for the task. –  Class Stacker Aug 1 '14 at 10:28

6 Answers 6

I don't think so there is GUI app is available in Ubuntu repository.

But you can simply convert your required formats in terminal. Try the following,

First you have to install libav-tools, Open terminal(Ctrl+Alt+T) and type the below command,

$ sudo apt-get install libav-tools

Now you can do your needs, for FLV file to MP4

$ avconv -i input.flv -codec copy output.mp4
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Have a look at winff

It is a graphical application that uses ffmpeg (like a lot of other programs) to convert videos and audio.

It is included in the official Ubuntu repositories, so you can simply install it with

sudo apt-get install winff

The official website includes a link to a wiki and a mailing list if you need specific support and documentation with this tool

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It's not in the Ubuntu repository, but I liked Format Junkie for video conversions:

Add repository:

sudo add-apt-repository ppa:noobslab/apps

Update:

sudo apt-get update

Install it:

sudo apt-get install formatjunkie

Cheers.

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Handbrake is in the official repositories since Trusty (14.04). It is a small, efficient DVD ripper and video transcoder with a clean GTK GUI.

It can convert from a number of video formats, including flv, to either MPEG-4 or Matroska.

To install:

$ sudo apt-get install handbrake
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I've been reading so many different forums on how to convert FLV to AVI. Finally, I summarized three solutions:

First one: HandBrake . This tool is a free and open-source multi-threaded transcoding app. It supports nearly any videos including WMV format and has Mac version and Windows version.

Cons:

  1. HandBrake is too professional to handle for most people;
  2. It doesn't support MOV as output format.

Second one: there are many third party software which supports converting MKV to AVI. I just test one of them. It's professional yet easy to use and the service is excellent. And there is a step by step guide about how to use this tool .

Cons:

  1. Most of them are not free.

Third one: Online-Converter . This kind of converter does a great job on file conversion.

Cons:

  1. Like most online converters, the free version of this tool only allows you to convert videos smaller than 100MB. It's too small for video conversion; 2.Your MKV video should be upload to the internet to be converted. This means the risk of pravite information leak is possible.
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I've written a GUI (named ConvertFLVToMP4)for CLI avconv program. Its .deb can be downloaded from: https://app.box.com/s/vyr473g7q2nwkj6haq22 It requires the installation of gambas3 from: https://launchpad.net/~gambas-team/+archive/ubuntu/gambas3 before installing the app from the .deb.

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