github stevezau/media_preview_generator 4.4.2
Thumbnail quality slider was documented backwards

3 hours ago

Fixes

The Thumbnail Quality slider was explained backwards everywhere. The tooltip claimed higher numbers meant sharper thumbnails. It is the opposite — the setting is FFmpeg's -q:v scale, where 2 is the sharpest and 10 the blurriest. Anyone who raised the slider to improve their previews was quietly making them worse and shrinking their BIF files.

Corrected in the Settings page, the setup wizard, the Unraid template, and the docs. The slider label now reads Thumbnail Quality: 4 (lower = sharper) so the direction is visible without hovering. The default of 4 has not changed — if you never touched the slider, nothing about your previews changes.

If you had raised the value hoping for better quality, lower it instead and regenerate.

One curiosity worth knowing: slider position 1 is identical to 2. FFmpeg's JPEG encoder will not go above quality 2, so 2 really is as sharp as it gets — 1 just repeats it.

Thanks to @dlhall111 for catching this and for checking the docs before reporting (#286).

Other fixes

  • The retired-image notice page now renders for everyone, whatever PUID/PGID you run under (#277).
  • :dev images now report a real version number instead of a placeholder.

Internal: fixed a test-harness leak where a developer's local .env reached the end-to-end test app, and pinned the thumbnail-quality wording with regression tests on every surface so this particular mistake cannot come back unnoticed.

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