What does this error message mean?

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1

I installed Video Trimmer (Flathub) from the Software center. Trimmed a video then tried to save and it keeps giving this error:

Screenshot from 2024-08-01 11-22-09

Is it something simple to fix?
Thanks

2

Have you already installed extra media codecs with sudo dnf group install Multimedia?

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3

is the answer ‘I can’t remember’ acceptable? :smiley:

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4

I assume I can just run it anyway and it wonit do any harm if i have?

5

If you’ve already done it, nothing will happen; if you haven’t, it will install “extra” media codecs for different multimedia files. There’s a chance, .aaf files will be included. :slight_smile:

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6

For trimming Video Trimmer uses the ffmpeg binary, thus the non-Flatpak version depends on the muxers and demuxers available in your system’s ffmpeg. The Flatpak package uses the org.freedesktop.Platform.ffmpeg-full extension.

So instead of system packages, it uses FFmpeg-full from Flathub, which should be installed by default.

You can check it with:

flatpak list | grep ffmpeg-full

It should return:

ffmpeg-full     org.freedesktop.Platform.ffmpeg-full            23.08   user

The error is likely because FFmpeg does not support the AAF format, which is why it says it is an invalid argument (FFmpeg does not recognize .aaf extension).

FFmpeg-Supported File Formats

7

Thanks, trying my best to understand that (a reflection on me, not your explanation!)
I ran the command and it gave two lines of output instead of one, in case that’s any kind of issue?

|ffmpeg-full|org.freedesktop.Platform.ffmpeg-full||22.08|system|
|ffmpeg-full|org.freedesktop.Platform.ffmpeg-full||23.08|system|

I don’t have FFMpeg installed as far as I know. It’s not listed in my installed apps. In fact if I search for it in Software, it doesn’t even show up in search, which confuses me somewhat!

8

I ran the command and it said installing groups: multimedia, then i confirmed and it says ‘installed’.

Does that mean it wasn’t installed?
thanks

9

That sounds like the codecs are installed now, but refer to yuntaz’s post because it’s much more detailed and nuanced than mine.

As I understand it, libraries—like ffmpeg—aren’t listed in the software center and you can check if they’re installed at the command line; e.g., sudo dnf list ffmpeg.

10

Shouldnt matter as the VideoTrimmer from Flathub has ffmpeg included.

All guides recommending to install ffmpeg-full are wrong in this case.

This may be an issue with the app itself, report an issue and please include more details. On Flathub Flatpaks the system doesnt really matter, but details on the type of file, and maybe an example file help.

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11

Sorry, I think I have solved it.
The video in question was created by EasyScreenCast. I have used it before, but never tried trimming one of its output before. Turns out the file codec/compression (stuff I doni’t understand) settings weren’t good, I tried switching to mp4 format and the output was trimmable by Video Trimmer, which is a great little app!
thanks and apologies, although as usual I learned here :slight_smile:

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12

Added 3rd-party-software, screen-recording, video-codecs

13

Great!