question: public static VideoQuality determineClosestSupportedResolution ( Camera . Parameters parameters , VideoQuality quality ) { VideoQuality v = quality . clone ( ) ; int minDist = Integer . MAX_VALUE ; String supportedSizesStr = "Supported resolutions: " ; List < Size > supportedSizes = parameters . getSupportedPreviewSizes ( ) ; for ( Iterator < Size > it = supportedSizes . iterator ( ) ; it . hasNext ( ) ; ) { Size size = it . next ( ) ; supportedSizesStr += size . width + "x" + size . height + ( it . hasNext ( ) ? ", " : "" ) ; int dist = Math . abs ( quality . resX - size . width ) ; if ( dist < minDist ) { minDist = dist ; v . resX = size . width ; v . resY = size . height ; } } Log . v ( TAG , supportedSizesStr ) ; if ( quality . resX != v . resX || quality . resY != v . resY ) { Log . v ( TAG , "Resolution modified: " + quality . resX + "x" + quality . resY + "->" + v . resX + "x" + v . resY ) ; } return v ; }
target:  Checks if the requested resolution is supported by the camera. If not, it modifies it by supported parameters. 