Avidemux Forum

Hi all,

I wanted to know if there is a way to rotate the preview video?

When capturing videos in portrait mode, avidemux shows / rotating them in landscape orientation.

Would be helpful that I can rotate the video to make it easier to watch the previews.

Of course, I understand that when exporting the video I will still need to configure the rotation separately.

Hi all,

I've recently upgraded my phone to the Samsung s25 that supports HEVC recording.

When viewing the video with VLC the colors appear to be ok as captured.

But when I import the same video into Avidemux the colors are all very saturated.

Does this happen because of the video decoder (Lavcodec RGB)? If so, how can I change that?

If not, what can I do to make the colors appear the same as captured on my phone or when viewing with VLC?

I found the problem with the "cannot open muxer" error.
I was file name parsing problem with "\", "/" in the path.
Missing output directory can also show this error.

Quote from: mozbug on May 30, 2026, 08:11:22 PMAny particular reason why the executable module is named avidemux3 in the build avidemux2 directory?

The idea was probably to allow coexistence of Avidemux 2.6.x with legacy Avidemux 2.5.x applications where the Linux executable had "avidemux2" in its name back then, more than 15 years ago as Avidemux 2.6.x was created, long before I started to contribute to the project. Avidemux 2.8.x continues the 2.6 line, 2.5 was a very different application under the hood.

I can confirm building avidemux from the updated source on both Ubuntu 2604 and Linux Mint 22.3 correctly opens and handles .ts and .m2t files. Nice work quick fix!

Any particular reason why the executable module is named avidemux3 in the build avidemux2 directory? Big changes coming needed a version upgrade?

Thanks again. This problem is closed. (and I will delete my linked files)

Quote from: mozbug on May 29, 2026, 05:44:45 PMchanging Index Files to Enable did not work for me - same error.

Correct, my first cursory assessment of the effects of that typo (and one leftover I missed back then) was incomplete.

Quote from: mozbug on May 29, 2026, 05:44:45 PMI will patiently wait for the next Nightly and will report when I test that one.

I would very much recommend not to depend on anyone to provide binaries as building Avidemux from source on Linux is very easy (on Ubuntu 26.04, just please install qt6-base-private-dev package manually, it had been added to build requirements recently, but not yet to the convenience script createDebFromSourceUbuntu.bash).

Thank you for your report.

Yes, the files are on a system with write access, but changing Index Files to Enable did not work for me - same error. I will patiently wait for the next Nightly and will report when I test that one. Thank you for your help!

Typo of doom fixed, please build from source off the latest git master or wait for a future nightly, my apologies for the inconvenience.

Oops, if the files are located on a filesystem with write access, please switch indexing mode for MPEG-TS in the Preferences -> "Import" tab -> "Index files" to "Enable". In-memory indexing just for MPEG-TS with MPEG2 video must have got broken by demuxers/MpegTS: obey indexing preferences, remove a few redundant std::string ctors, reorder tsHeader class members for legibility. Will try to look into this regression ASAP.

Regular x86_64 and legacy x86_64 AppImages from 20260414 through the current 20260516 fail on open of recorded TV files .ts and .m2t. Regular AppImages were tested on Ubuntu 2604. Legacy AppImages were tested on Linux Mint 22.3 (Ubuntu 2404 base).

I have been recording television programs for years on my Hauppauge HVR2255 (creates .ts) and Hauppauge WinTV-quadHD (creates .m2t). AppImage 20260411 is the last to successfully open these files.

I can provide a sample 1 minute recorded TV file and a terminal log of the failure on my website, but it is 100% reproducible ... what else do you need?

https://sanfransysco.com/pub/avidemux/test_20260524_2107.m2t 95MB
https://sanfransysco.com/pub/avidemux/avidemux_terminal_log 47kB

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