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plezy/lib/utils/resolution_label.dart

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/// Map a video stream height (pixels) onto the canonical resolution label
/// the rest of the app uses (`'4k'`, `'1080'`, `'720'`, `'480'`, or the raw
/// height for non-standard sizes). Returns `null` when [height] is null.
///
/// Plex hands the label back already in its `Media.videoResolution` field;
/// Jellyfin only gives raw pixel dimensions, so the Jellyfin mapper and
/// playback path both call this to produce the same shape.
String? resolutionLabelFromHeight(int? height) {
if (height == null) return null;
if (height >= 2160) return '4k';
if (height >= 1080) return '1080';
if (height >= 720) return '720';
if (height >= 480) return '480';
return height.toString();
}
/// Convenience overload that takes width + height. Width is considered first
/// for scope-cropped files, e.g. `3840x1608` should still be labeled `4k`.
String? resolutionLabelFromDimensions(int? width, int? height) {
if ((width != null && width >= 3840) || (height != null && height >= 2160)) return '4k';
if ((width != null && width >= 1920) || (height != null && height >= 1080)) return '1080';
if ((width != null && width >= 1280) || (height != null && height >= 720)) return '720';
if ((width != null && width >= 854) || (height != null && height >= 480)) return '480';
return resolutionLabelFromHeight(height);
}