Avidemux Forum

Didn't have time to look into it yet, sorry.

(Just indicating that the request has not been ignored.)

Please use the raw muxer in separate files mode together with MJPEG encoder. The former supports up to 999999 frames.

Very much desired, no estimates possible as this would require essentially a rewrite of the application and of most of video filters (YV12 is the internal exchange format).

At the moment, AviDemux limits Save Selection as JPEG to 99999 frames,
probably because it uses a 5 digit sequence number in the file names.

Could you please extend the sequence number to 6 digits,
allowing upp to 999999 frames in a single save.

Most films are longer than 100,000 frames.

Avidemux is a great tool, it would be even better with 4:2:2 YUV ability.
Will Avidemux ever make the leap to 4:2:2 and if not, why?

Well, to run at least recent Avidemux appImages on Trixie, you need to install libfuse2t64 and libpcre2-16-0:

sudo apt update
sudo apt install libfuse2t64 libpcre2-16-0
Thank you for reporting the problem --> on my todo list with priority.

Didn't have time to try to compile Avidemux on Debian 13.2 yet, but will do it soon.

Quote from: Kohlhaas on November 30, 2025, 06:43:53 PMWhen I start the app image in the terminal, I get several error messages.

Using the latest available (from May 30 2025) appImage from https://avidemux.org/nightly/appImage4Buster/, please reproduce the issue and post the error messages. I didn't have time to setup a VM with Debian 13 to test myself yet, unfortunately.

Quote from: Kohlhaas on November 30, 2025, 06:43:53 PMCompiling with the downloaded sources also did not work; the compiler issued various error messages that I did not understand.

No problem with not understanding the errors, but, obviously, with not providing any directly usable information. If you are not comfortable with providing build or CMake logs as attachments publicly (rename them to add extension ".txt" to be accepted by the forum software) or via pastebin web service, you may send them in a personal message (PM).

I discovered what is causing my HEVC-to-AVC conversions to screw up, resulting in a file with less than 15fps...

It seems that "good" HEVC files that convert to AVC flawlessly have a framerate of 23·976023, whereas the "bad" HEVC files have a framerate of 23·9876215.

Through some experimenting, it seems that if I use Avidemux's Video filter to Resample the FPS (retaining speed & duration) at 23·976 (film) and resave as HEVC, it indeed corrects the framerate to 23·976023. However, the playback is stuttery and jerky.

Apparently, that difference of 192fps makes a noticeable difference.

I think I also used the Constant Bitrate (1-pass) filter @ 2500kbits/sec - perhaps I will try the Constant Rate Factor (1-pass), Constant Quantiser (1-pass), and Video Size (2-pass) options in combination with the Resample FPS filter, though I have my doubts it will affect anything (but who knows).

Assuming these adjustments to the filters do not help keep the modified FPS smooth and stutter-free, my question is : HOW DO I FIX THIS stutter problem?

How do I get the HEVC framerate modified FROM the crappy 23·9762015 fps, TO the proper 23·976023 fps, so that it will play back smoothly, and thereby convert to AVC flawlessly?

(*sigh* Why can't these things just be encoded ONE way, the right way, in the first place?) 

When I accidentally closed the avidemux_jobs window the list comes up as empty even though the progress window and  the window batch file are still running.

Is there a way to restore the list?

Thanks

I am a fairly inexperienced user of Avidemux, which I have been using with great satisfaction for years.

However, I have now switched from a mini PC with an AMD processor to a mini PC with the latest Intel processor (Intel Core Ultra 9 255H) and at the same time upgraded my Linux system from MX-Linux 23 to MX-Linux 25 (Debian Trixie based).

Unfortunately, Avidemux no longer works after this action.
When I start the app image in the terminal, I get several error messages.
Compiling with the downloaded sources also did not work; the compiler issued various error messages that I did not understand.

There is only one thing I can do: ask the 'experts' here in this forum for help.
Thank you in advance.