Search file-type filter: fix miscategorised extensions and add modern (2026) formats #842

Search file-type filter: fix miscategorised extensions and add modern (2026) formats

Summary

The file-type filter in the search window (the Any / Archives / Audio / CD-Images / Pictures / Programs / Texts / Videos dropdown) maps each category to a list of file extensions in src/OtherFunctions.cpp (CED2KFileTypes, the ED2KFileTypesMap inserts, ~lines 656–895). This list dates from the eMule era and has two issues:

1. A few extensions are in the wrong category.
2. Many file formats that have become mainstream since ~2010 are missing, so files with those extensions are not matched by the corresponding filter (and Audio/Video/Image/Document/Program types are not detected for them elsewhere either).

This affects local filtering of search results and file-type detection in general (see note about the ED2K protocol at the end).

Part 1 — Incorrect classifications

Minor / comment-only (no category change needed, listed for completeness):

• .sub (line 857) is correctly under CD-Image as CloneCD subchannel data (the .ccd/.img/.sub set), but its source comment says "Subtitle File", which is misleading.
• A few descriptive comments are wrong even though the category is correct: .mp1v ("QuickTime Movie File" → MPEG-1 video), .mp4 ("MPEG-2 Video File" → MPEG-4), .mpe ("MPEG-4 Video File" → MPEG-1).

Part 2 — Missing modern formats

Suggested additions per category, with a short description usable as the source comment. Some extensions fit more than one category — see the cross-category note.

Audio

• .opus — Opus Audio File
• .oga — Ogg Audio File
• .weba — WebM Audio File
• .wv — WavPack Lossless Audio File
• .dsf — DSD Stream Audio File (high-res)
• .dff — DSDIFF Audio File (high-res)
• .caf — Apple Core Audio Format File
• .aa — Audible Audiobook File
• .aax — Audible Enhanced Audiobook File

Video

• .mts — AVCHD Video File (note .m2ts is present but .mts is not)
• .f4v — Flash MP4 Video File
• .mxf — Material Exchange Format File
• .h264 — H.264 Raw Video Stream
• .h265 — H.265 Raw Video Stream
• .hevc — HEVC Raw Video Stream

Pictures

• .heic — High Efficiency Image File
• .heif — High Efficiency Image Format File
• .avif — AV1 Image File
• .jxl — JPEG XL Image File
• .svg — Scalable Vector Graphics File
• .jp2 — JPEG 2000 Image File
• .j2k — JPEG 2000 Code Stream
• .xcf — GIMP Image File
• .apng — Animated PNG File
• .dng — Digital Negative RAW Image
• .cr2 — Canon RAW 2 Image
• .cr3 — Canon RAW 3 Image
• .nef — Nikon Electronic Format RAW Image
• .arw — Sony Alpha RAW Image
• .orf — Olympus RAW Image
• .raf — Fujifilm RAW Image
• .rw2 — Panasonic RAW Image

Archives

• .zst — Zstandard Compressed File
• .xz — XZ Compressed File
• .txz — Tar XZ Compressed File
• .lz4 — LZ4 Compressed File
• .lzma — LZMA Compressed File
• .lz — Lzip Compressed File
• .tlz — Tar LZMA Compressed File
• .cb7 — Comic Book 7-Zip Archive
• .cba — Comic Book ACE Archive

Programs

• .ps1 — PowerShell Script
• .psm1 — PowerShell Module File
• .psd1 — PowerShell Data File
• .sh — Unix Shell Script
• .app — macOS Application Bundle
• .appx — Windows App Package
• .msix — Windows App Package
• .appimage — Linux AppImage Application
• .flatpak — Flatpak Application Package
• .snap — Snap Application Package
• .scr — Windows Screensaver Executable
• .cpl — Windows Control Panel Applet
• .deb — Debian Software Package
• .rpm — RPM Software Package
• .apk — Android Application Package
• .jar — Java Archive (application/library)

CD-Images

• .vhd — Virtual Hard Disk Image
• .vhdx — Hyper-V Virtual Hard Disk Image
• .vmdk — VMware Virtual Disk Image
• .vdi — VirtualBox Virtual Disk Image
• .qcow2 — QEMU Copy-On-Write Disk Image
• .wim — Windows Imaging Format File
• .mdx — DAEMON Tools Disc Image
• .daa — PowerISO Disc Image
• .isz — Compressed ISO Disc Image
• .uif — MagicISO Disc Image
• .cdi — DiscJuggler Disc Image
• .b5t — BlindWrite 5 Disc Image
• .b6t — BlindWrite 6 Disc Image
• .vcd — Virtual CD Disc Image

Texts (Documents)

OOXML — Office 2007+ is entirely absent:

• .docx — Microsoft Word Document (OOXML)
• .docm — Microsoft Word Macro-Enabled Document
• .dotx — Microsoft Word Template (OOXML)
• .xlsx — Microsoft Excel Spreadsheet (OOXML)
• .xlsm — Microsoft Excel Macro-Enabled Spreadsheet
• .xltx — Microsoft Excel Template (OOXML)
• .pptx — Microsoft PowerPoint Presentation (OOXML)
• .pptm — Microsoft PowerPoint Macro-Enabled Presentation
• .potx — Microsoft PowerPoint Template (OOXML)
• .ppsx — Microsoft PowerPoint Slide Show (OOXML)

Other:

• .md — Markdown Document
• .markdown — Markdown Document
• .csv — Comma-Separated Values File
• .json — JSON File
• .yaml — YAML File
• .yml — YAML File
• .tex — LaTeX Source Document
• .djvu — DjVu Document
• .xps — XML Paper Specification Document
• .oxps — OpenXPS Document
• .fb2 — FictionBook 2 E-Book
• .azw3 — Amazon Kindle KF8 E-Book
• .kfx — Amazon Kindle KFX E-Book
• .pages — Apple Pages Document
• .numbers — Apple Numbers Spreadsheet
• .key — Apple Keynote Presentation

Notes

• Archive vs. Program (guiding principle): Archives is for general-purpose compressed file containers; an extension whose purpose is to package/deliver/run software belongs in Programs, even when it is internally a zip/compressed container. By this rule the software packages .msi, .xpi, .jar, .deb, .rpm, .apk, .appx/.msix, .appimage/.flatpak/.snap all go under Programs, while general compression (.zip, .7z, .rar, .tar, .gz, .xz, .zst, the comic-book archives, …) stays under Archives.
• ED2K protocol: Archive and CD-Image are not native ED2K file types — they are published/queried on servers as Pro (see GetED2KFileTypeSearchTerm in OtherFunctions.cpp). Adding extensions to those two categories therefore only affects aMule's local filtering, not server-side search.

Affected code

• src/OtherFunctions.cpp — CED2KFileTypes constructor / ED2KFileTypesMap inserts (~lines 656–895)