MKV leaving index files? (.idxb)

[blazini36]

I just had to reinstall the Avidemux qt5 git packages do to some dependency issue with it's AUR package (Arch Linux). Now I'm noticing that whenever I open an MKV file it will leave an index file inside the directory, just like mpeg files do. Is this some new behavior, or is something set funny? Not a fan of the index files if I can disable them.

[eumagga0x2a]

Of course, this is intentional. Flushing the index to disk saves minutes of waiting when repeatedly opening large Matroska containers, please see https://github.com/mean00/avidemux2/commit/4a023d770bdbb3731c108819a40f77dca7b4601b for the way to disable the feature.

[Vygantas]

Also happens with MP4 files since few builds ago, super annoying, cant disable ?

[eumagga0x2a]

Set environment variable ADM_NOINDEX_MP4 to 1 to disable loading and saving the results of decoding frame type in MP4 files. The feature saves sometime minutes of waiting when opening a large MP4 file with a H.264 video track a second time.

[tropolite]

What would be nice if the application included the option to enter a folder location we can nominate, say in the Edit > Preferences > Output with the ability to either Not create an '.idxb' file, or store the file in the following temp location with an added option to delete the file after a month or other timeframe', or 'after the conversion is complete'.

Just a thought.

[sark]

I just use a batch script (converted to .exe with an IDX icon) to quickly hide all IDX files, including any in sub directories.
Hidden IDX files offer the same benefits as unhidden versions, without the untidiness.
You can create another simple script to delete all hidden IDX files when no longer required.

Hide IDX files

Code Select Expand

attrib +h *.idx /s
Delete hidden IDX files

Code Select Expand

attrib -h *.idx /s
del *.idx /s

[Vygantas]

Set environment variable ADM_NOINDEX_MP4 to 1 to disable loading and saving the results of decoding frame type in MP4 files. The feature saves sometime minutes of waiting when opening a large MP4 file with a H.264 video track a second time.

Can it be made so if file is < 20 MB or so, no such data is created?

[Elstar`]

Or can it be made into a preference saved in config3 instead of environment variable? Both for MKV and MP4. Min file size could be specified there too...

[eumagga0x2a]

Or can it be made into a preference saved in config3 instead of environment variable?

This is the plan, pull request by szlldm waiting for action.

[cachaito]

In my humble opinion there should be an option to remove creating *.idxb files or at least indexing files should be applied to bigger files.

[PBear.SF]

Set environment variable ADM_NOINDEX_MP4 to 1 to disable loading and saving the results of decoding frame type in MP4 files. The feature saves sometime minutes of waiting when opening a large MP4 file with a H.264 video track a second time.

Tried this. Doesn't work. Running nightly build 2.8.2 Qt6 241224-02h11m_065c44af051 on M2 Mac mini with macOS Sequoia 15.2.

I entered "export" commands for ADM_NOINDEX_MP4 and MKV into .zprofile file in home directory, rebooted.  Typing "env" in Terminal now returns the following (amongst other environment variables):

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ADM_NOINDEX_MP4=1
ADM_NOINDEX_MKV=1

Yet, when I load an MP4 file into Avidemux, it still creates an .idbx file in the source file's directory every time.

What am I doing wrong?