Cross-Seed: "DV HDR" rejected as hdr mismatch against "DoVi.HDR10" (generic HDR vs HDR10)

[illutr0n]

Description

Cross-seed rejects a candidate with hdr mismatch when one name says DoVi.HDR10 and the other says DV HDR. Both describe the same encode: Dolby Vision with an HDR10 base layer. The generic HDR tag in release names almost always means HDR10.

Source torrent (local):

Example.Film.2020.UHD.BluRay.1080p.DD+Atmos.5.1.DoVi.HDR10.x265-Kyo

Candidate (tracker listing, same encode, same .mkv byte size):

Example Film (2020) 1080p UHD BluRay x265 DV HDR DDP Atmos 5.1 English-Kyo

The manual search breakdown shows it under hdr mismatch (1 candidate). Another tracker's listing with the same name as the source matched.

The HDR tags normalize to DV HDR10 vs DV HDR, and the strings are compared for equality:

• matching.go#L631-L634
• parser.go#L341-L351: DoVi/DV are aliased, but HDR10 and HDR stay distinct.

The exact-size fallback could relax HDR here, but it compares total sizes (search_candidate_match.go#L406-L410). The source torrent also contains .nfo, poster.jpg and screens.png (a few MB), so the totals differ:

	Total bytes	Files
Source torrent	7,002,700,000	.mkv + .nfo + poster.jpg + screens.png
Candidate	7,000,000,000	.mkv only
.mkv in source	7,000,000,000

Searching from an existing mkv-only cross-seed of the same release, whose size equals the candidate's, should go through the fallback. From the original torrent it can't.

Expected: treat a generic HDR as compatible with HDR10 (but not with HDR10+ or HLG), so DV HDR matches DV HDR10. The per-file size check downstream still guards against real mismatches.

Steps to reproduce

1. Seed a torrent named …DoVi.HDR10.x265-GROUP that also contains extras such as .nfo and screenshots.
2. Run a manual cross-seed search where a tracker lists the same release as … DV HDR …-GROUP, with only the .mkv.
3. The candidate is rejected with hdr mismatch.

Environment

- qui: v1.32.0 (ghcr.io/autobrr/qui:latest, Docker)
- qBittorrent: 5.2.4 (linuxserver/qbittorrent, Docker)
- Ubuntu 24.04 (qui host), Synology DSM 7.3 (qBittorrent host)

Checklist

• I have searched existing discussions and issues
• I have checked the documentation

[github-actions[bot]]

This was generated by AI during triage.

Tracked in #3245.