the x264 av1 file plays only audio on vlc but works with flaws on mpv: on mpv I get audio and video, but every 5 to 6 seconds it's like instead of getting 24 fps I get 22, the user noticing the missing frames.

Is this a hardware issue? software?

debian 12.11, vlc 3.0.21 flatpak, mpv 0.40.0 flatpak

what do I do?

when I say trim I don't mean to time trim a file, like getting rid of the last 2 minutes of the mkv file, but to picture trim every frame of the mkv file to get rid of black margins to both left and right of the actual image.

Files were originally recorded on 4:3 aspect ratio (some are movies from the 1950's) but the encoder somehow created / copied huge black margins to both left and right of the actual image. I want to get rid of these.

Some of my files are 30 minutes long but others 2 hours.

if ffmpeg is the application I need, could anyone knowledgeable enough write the actual command?

can it be done for several files automatically?

file title is an option present on mkvtoolnix (92.0 eyeglow on debian 12.11)

I could single open every file, remove the file title and save, but that's gonna take ages. almost 100 files.

Debian 12.9

I just downloaded a 30 MiB epub file, but I can discard the images that make most of this space.

Another epub file includes unsolicited advertising with a link to a subscription. I'd like to get rid of it as well.

Is there something I can use?

debian 12.9 with ffmpeg.

The mkv file is 68 minutes long, I want to get rid of minutes 05:50 to 11:00 and 58:00 to 68:00. I want the resulting parts (00:00 to 05:00 and 11:00 to 58:00) bind together as a single mkv file.

the ffmpeg command I've always used for similar but easier purposes:

ffmpeg -i "E01 - Part One [x265].mkv" -ss 00:00:00 -to 00:07:28 -c copy output.mkv

can I do this with ffmpeg or do I have to bind the 2 resulting files with mkvtoolnix?

ETA: would it be a better idea to use ffmpeg installed from flatpak instead of debian's default sources? I don't know if ffmpeg is updated regularly

I've seen some torrents incorporating both standards in their description and I don't get it. It's either 1200p (1920x1200, WUXGA) or 1080p (1920x1080, Full HD).

What am I missing?

the same for vlc under debian

back in the ubuntu days I used radiotray, but it seems not to be maintained anymore.

my next question is: is https://github.com/ebruck/radiotray-ng/releases/tag/v0.2.9 being maintained? it was last updated nov 10, but the page doesn't list the year.

I've also found some flatpak radio packages. Should I disregard radiotray and try any flatpak radio application?

What I liked of radiotray is that it was minimalist, simply click on it, choose a radio station and that was it, I didn't need to open a whole suite just to listen to radio online. Adding station was also very easy, just pasting a url.

not a fan of huawei earbuds but I got a pair as a present.

Only use I see for this thing is to listen to music with my notebook and maybe with the android device (an asus with android 8).

I've never used wireless earbuds, so I have no idea how to start.

Help appreciated

when I installed debian 12.7 I created a separated /var directory, along other 2 separated directories (names forgotten).

I also use flatpak and this program is installed in this directory. Executing 'flatpack update' I discovered this directory is 95% full, meaning I cannot update anything, because /var is 95% full (only 400 MiB free)

Ideas to solve this?

this is odd because it didn't happen with ubuntu 23.10.

If I play my acoustic guitar and record it, output file sounds like an electric guitar, which never happened with ubuntu.

I'm also recording unwanted background noise, but now it's much louder than with ubuntu.

how come?

must it be an apple screwdriver?