Lightweight 4K player adds multi-audio dub switching without new dependencies

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A developer building RKMovies, a sub-megabyte 4K media player for Android and Windows, describes how it supports switching between multiple audio dubs mid-playback. The app filters out subtitle-only entries from the dub list and probes available dubs so that unavailable options are hidden. Switching reuses the existing quality-switching path, fetching the dub's stream at the same timestamp so playback continues uninterrupted, with subtitles reloaded for the new dub. The author notes the feature adds almost no APK size because it relies on machinery already in the player rather than new libraries.

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