MPVTrack.detailText built its sample-rate label with integer division
(`sampleRate / 1000`), which truncates the fractional kHz. The
second-most-common audio rate — 44100 Hz (CD quality, music videos) —
showed as "44 kHz", a label that denotes 44000 Hz (a different rate),
instead of the conventional "44.1 kHz" used by VLC, mpv and every DAW.
The same defect hit 88200 -> "88 kHz", 176400 -> "176 kHz" and
22050 -> "22 kHz". Whole-kHz rates (48000, 96000, ...) were already
correct and stay unchanged. The label is live in the quality selector's
advanced details, where EmbeddedTrackRowView renders track.detailText.
- Factor the formatting into MPVTrack.formatSampleRate(_:), a pure
static helper: divide as Double, drop the decimal for whole kHz,
otherwise keep 1-2 meaningful digits with the trailing zero stripped
(44.1, 88.2, 22.05).
- detailText now appends Self.formatSampleRate(sampleRate); its structure
(codec / channelCount parts, separator, nil-when-empty) is unchanged.
- Add YatteeTests/MPVTrackFormatTests covering whole-kHz rates, the
44.1 kHz family (the bug), half-decimal rates and the detailText
integration.
Streams built for local folder files carry no resolution/codec/fps
metadata (unknowable before demux), so the quality selector labeled
them "Unknown". Use the video track mpv reports (demux-w/h/fps, codec)
to fill those fields into a display-only copy of the stream — the
Video row and summary now show e.g. "720p · 30fps" with a codec badge.
Selection and tap handling keep using the original stream.
Files with multiple embedded tracks (e.g. MKV from media sources or
downloads) previously exposed none of them: mpv's track-list was never
read, aid was never set, and sid was only ever no/auto. The quality
selector showed no Audio or Subtitles tab for such files.
MPVClient now observes track-list/aid/sid and delivers a coalesced,
leniently decoded [MPVTrack] snapshot; selection state is derived from
the reported "selected" flags. Embedded tracks are switched live via
aid/sid (no reload), surfaced in the existing Audio/Subtitles sections
alongside external captions on iOS, tvOS and macOS. External sub-add/
audio-add tracks are filtered out to avoid double-listing. User picks
are sticky across same-video reloads (quality switch, audio mode,
retries) and preferred audio/subtitle languages auto-select a matching
embedded track once per load, with external captions taking precedence.
