Avidemux Forum

Perhaps D3D12on7 could come into play?
https://www.nuget.org/packages/Microsoft.Direct3D.D3D12On7

I have lots of MKV files with soft-embedded subtitles. I need to cut out random parts of the videos but need to keep the subtitles. I absolutely love Avidemux's ability to cut my files and would be willing to pay a couple hundred dollars for a lifetime license or a perpetual monthly fee of say $5 if you add the ability to handle subs. Is this feature on your roadmap? LosslessCut does this but no matter what I try, I can't get a perfect cut when the MKV segments are merged back together. I always end up with this weird SPLIT second glitch at the spots I removed despite cutting on key frames. When I chop the same sections with Avidemux, they're perfect.

2nd question/request. When I import my MKVs into Avidemux, they'll often have multiple audio tracks. Example: English AC3, English DTS, Director Commentary, etc. When I chop up an MKV file, the output file lists all those individual audio tracks as: Track 1 [English], Track 2 [English], Track 3 [English] etc. When Avidemux is saving the new file, can it retain the original names for the audio tracks?

Thank you

Mit Avidemux wird es schwierig, ich würde da schauen :
https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg

Das meint nicht, dass die Lösung trivial ist.

@fabian3357,
für die Synchronität werden Haltepunkte festgelegt.
Mit anderen Worten : Audio von Video 1 + Video von Video 2 mit exakter gleicher Videolänge kann synchron sein, muss es aber nicht.
Manchmal ist die Verschiebung nur gering, und mit Avidemux + Audio-Offset kann man das Video synchronisieren, bis zur nächsten Asynchronität, das Video splitten usw.. Am Ende wieder cat mit Avidemux.

Vielleicht kann man das auch auf SAT übertragen. Panasonic BD SAT receiver nehmen den TS-Stream 1:1 auf.
Mit allen key-frames, IDR-frames usw..
2 Vermutungen :
1. ARD + Co senden via SAT oder DVB-T2 das "gleiche".
2. Panasonic Recorder nehmen den TS-Stream unverändert auf.

Vielleicht ist es nur ein Recorder Problem ?!

I've gone back to X11 and it works fine.

Hello,

I'd like to suggest a new visual feature for Avidemux that could greatly enhance the editing experience, especially for users working with long videos or visual material that requires intuitive segment removal.

Proposal: A "LiveView" Mode

The idea is to add an optional LiveView (or Storyboard) mode (popup or not) that shows a grid or strip of I-frame thumbnails extracted from the video. Similar visually to lightbox in davinci resolve. The user could:

- Visually browse through the keyframes (I-frames) as miniatures.
- Select one or more segments between I-frames by clicking or dragging.
- Delete those segments visually, with the software performing the equivalent of Ctrl+X internally (without re-encoding).
- Return to the classic timeline view, where the cuts are already applied.

Technical feasibility

This could build on top of:
- The current GOP/keyframe analysis already used by Avidemux.
- The cut logic that handles markA, markB, and cut().
- Thumbnails either generated live (ffmpeg) or cached per session.

Why it matters

This feature would make Avidemux much more user-friendly for non-technical users, and extremely efficient for workflows where previewing and removing scenes quickly is critical — without losing the core principle of lossless editing.

Thanks for considering this suggestion, and for the great work you've done on Avidemux over the years!

Kind regards, 
Kikeb

For Win7/8/8.1, best I know is you're going to have to stick with avidemux_2.8.2 r241212_win64.exe (or the corresponding  .zip).

https://www.avidemux.org/nightly/win64/

Quote from: eumagga0x2a on July 02, 2025, 11:35:06 AMAll Avidemux builds are inherently portable, i.e. installers are for comfort ... Once extracted, the program directory may be moved e.g. to a flash drive ... "Portable mode" on Windows means that Avidemux stores user profile in the program directory instead of the default location in %appdata%\avidemux, i.e. the program directory must be writable for the user.

To note:

Though if using the .exe installer as 'portable', in order for settings to be stored in the program directory, the avidemux.exe file also needs to be renamed to, avidemux_portable.exe.

Runtimes don't seem to include DX12.
This thread may be relevant, perhaps there are some plugins/extensions that could be removed from the installer to make it work.

https://github.com/GPUOpen-Tools/Compressonator/issues/37

Windows 8.1 doesn't support DX12 so I don't think it can be worked around without providing a custom .dll with the installer to handle this.
Unless VC redistributables would do something...?