<player-video id="player" width="100vw" height="100vh" vid="{{txVid || ''}}" defn="shd" autoplay loop muted="{{muted}}" controls="{{controls}}" showCastingButton showFullscreenBtn showProgress enablePlayGesture enableProgressGesture vslideGesture="{{false}}" vslideGestureInFullscreen autoPauseIfOpenNative autoPauseIfNavigate longPressPlaybackRate>
</player-video>

无论 controls 为 `true` 还是为 `false`, showCastingButton 均无效。