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 Forum index » House Training » Users ( For the regulars )
Convert video from one format to another?
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Mike Walsh


Joined: 28 Jun 2014
Posts: 3702
Location: King's Lynn, UK.

PostPosted: Thu 01 Feb 2018, 07:40    Post subject:  Convert video from one format to another?
Subject description: From .avi to .mp4; what's the most effective way, and what alternatives do we have available?
 

Morning, all.

Quick question for you today, boys & girls. What would be the best/easiest way to convert from one video format to another? In this particular case, I'm talking about converting from .avi to .mp4.

Is ffmpeg really the best way to approach this.....or do we have alternatives? (I'm GUI-oriented [*snigger*; I know, I know.....sad, isn't it? Rolling Eyes Laughing ])


Mike. Wink

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nic007


Joined: 13 Nov 2011
Posts: 2351
Location: Cradle of Humankind

PostPosted: Thu 01 Feb 2018, 11:06    Post subject:  

I use VLC if the file is already on my harddisk. The trickiest part is to figure out an appropriate bitrate. If the file still needs to be downloaded, an online converter is easier and much faster to use.
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Mike Walsh


Joined: 28 Jun 2014
Posts: 3702
Location: King's Lynn, UK.

PostPosted: Thu 01 Feb 2018, 11:47    Post subject:  

Thanks, Nick. As it happens, it turns out that MPlayer and/or VLC are both quite happy with .avi files. I've just downloaded a film I've been trying to get hold of for a long while (the Grace Jones 1986 spoof film 'Vamp'.....I love a good 'cheesy' horror movie!)

It's the first time I've encountered a download in .avi format, and figured it wouldn't hurt to put feelers out for conversion techniques should it prove necessary. I've come across the Matroska .mkv format, since it's used in SimpleScreenRecorder; I determined months ago that YouTube was happy to accept uploads in that format

I had considered an online converter, but since I've already downloaded 'Vamp', I didn't really want to upload/download yet again. Now I know I sha'n't need to!

Thanks again for the info; I wasn't aware VLC could do that, I must admit.


Mike. Wink

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rockedge


Joined: 11 Apr 2012
Posts: 526
Location: Connecticut, United States

PostPosted: Thu 01 Feb 2018, 12:20    Post subject:  

I use OpenShot...installed from PPM..... I load the .avi and drop it into a track. Then use the export function to create a new .mp4 version from the .avi container. Works great.
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nic007


Joined: 13 Nov 2011
Posts: 2351
Location: Cradle of Humankind

PostPosted: Thu 01 Feb 2018, 19:22    Post subject:  

Mike, a few interesting things with regards to youtube: All user uploads are converted to the new webm and mp4 formats regardless of the format of the upload. I always download in mp4 format as this is more compatible with external players. The quality of the available youtube video depends on the quality of the upload. If the upload is of very high quality, there should be a 1080p (HD quality), 720p (also HD quality), 480p (SD) and 360p version of the particular video available on google's servers ready for download. For some unknown reason, the video and audio tracks of the 480p version is kept seperately on the server. I tend to download the 480p version if it is a very long video (like a sport game) as the HQ versions can be very big in size. On the standard, small computer screen, the 480p version still looks good so it's the best trade-off between quality and size.
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p310don

Joined: 19 May 2009
Posts: 1174
Location: Brisbane, Australia

PostPosted: Fri 02 Feb 2018, 05:07    Post subject:  

Code:
ffmpeg -i input.avi output.mp4


Very basic, and gives very basic results. Can be added to enormously.

ffconvert is a gui for ffmpeg found in almost all puppies.

Has easier options for output variations.

Handbrake is my all time favourite converter, really easy, great results. And, multi-core conversion (I think)
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Mike Walsh


Joined: 28 Jun 2014
Posts: 3702
Location: King's Lynn, UK.

PostPosted: Fri 02 Feb 2018, 06:13    Post subject:  

@ rockedge:-

I didn't even know Openshot would do that! This needs investigating...

@p310don:-

Thanks for the tip about FFConvert. It is indeed in all my Pups (!).....but I don't think I've ever even looked at it, TBH. Rolling Eyes Embarassed

Have to remember that one for future reference.

Cheers.


Mike. Wink

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