.avi question

16 respostas [Última entrada]
hailert
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Joined: 10/21/2020

(My English is poor)

Use .avi videos is good? or have some ethical problem?

I am not a expert

:)

lutes
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Joined: 09/04/2020

When in doubt about a video file format, I use this table:

https://en.wikipedia.org/wiki/Comparison_of_video_container_formats#General_information

AVI is referenced as proprietary (Microsoft).

Magic Banana

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Joined: 07/24/2010

... but can be played in freedom (e.g., using VLC, by default in Trisquel). Prefer WebM (with VP9) for your own works.

lutes
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Joined: 09/04/2020

...or even better, the original Matroska MKV container.

I usually convert .avi files into .mkv files with Handbrake. It is available in Trisquel repository.

Magic Banana

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Joined: 07/24/2010

Do you transcode to redistribute the videos? Doing so, you lose quality.

lutes
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Joined: 09/04/2020

> Do you transcode to redistribute the videos?

Yes and no: I do transcode but I do so only to avoid keeping content in a proprietary container format.

> Doing so, you lose quality.

Indeed, but marginally only, isn't it? Quality not being a crucial factor in my case (i.e. I cannot see the difference and would not care so much about it anyway) and HandBrake being one-click handy, I never tried to transmux instead. Do you know a good tool for transmuxing AVI into MKV? CLI is OK.

hailert
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Joined: 10/21/2020

I use a software called WinFF to convert video and audio.

For video i use Webm and for audio OGG.

lutes
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Joined: 09/04/2020

Thanks, now I only need to find out how to demux AVI with FFmpeg (to which WinFF is a graphical front-end).

I thought demuxing/muxing (transmuxing) instead of transcoding could be lossless.

This is beyond the scope of your original question though, so I might open another thread about it in the general forum.

Magic Banana

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VLC can transcode too. And Trisquel's repository includes more specialized applications with a GUI, such as HandBrake and Transmaggedon.

hailert
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Joined: 10/21/2020

Use mp4, mp3, avi or other format is good for personal use?

In this talk RMS says that for distribute the recording is good to use a format if VLC can play it on a 100% free distro. Mp4, avi or mp3 works with VLC on Trisquel

See https://audio-video.gnu.org/video/rms-2019-07-15-frankfurt-are-we-facing-surveillance-like-in-china.webm

0:05:40

Malsasa
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Joined: 12/01/2016

Thanks, hailert. This is important to me.

nadebula.1984
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Joined: 05/01/2018

Being able to play certain formats using entirely free/libre software doesn't mean that such formats are good.

For example, LibreOffice on Trisquel can open Microsoft OOXML files. Can we say MS OOXML is good just because we can read it using free software?

hailert
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Joined: 10/21/2020

What is the problem to use formats like MP4, MP3 or AVI?

I don't really understand this

jxself
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Joined: 09/13/2010
nadebula.1984
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Joined: 05/01/2018

AVI is non-free format.

Although MP3 patents expired in 2017, certain patents covering other MP* formats may still be valid.

aloniv

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Joined: 01/11/2011

Do you know a good tool for transmuxing AVI into MKV? CLI is OK.

You can do it using ffmpeg, something like:

$ ffmpeg -i input.avi -codec copy output.mkv

You can also do it in Avidemux by choosing copy for video and audio output options.

lutes
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Joined: 09/04/2020

Thank you.

I had an idea it should be possible but was not sure how it worked.