question: boolean checkCameraSize ( CameraOptions cameraId ) { boolean sizeAvailable = false ; Camera camera = null ; Method method = getCameraOpenMethod ( ) ; if ( method != null ) { try { camera = ( Camera ) method . invoke ( camera , new Object [ ] { cameraId . getValue ( ) } ) ; } catch ( Exception e ) { camera = Camera . open ( ) ; } } else { camera = Camera . open ( ) ; } if ( camera == null ) { return false ; } Parameters param = camera . getParameters ( ) ; List < Camera . Size > sizes = param . getSupportedPreviewSizes ( ) ; for ( Camera . Size size : sizes ) { if ( ( size . width == H264Config . QVGA_WIDTH && size . height == H264Config . QVGA_HEIGHT ) || ( size . width == H264Config . CIF_WIDTH && size . height == H264Config . CIF_HEIGHT ) || ( size . width == H264Config . VGA_WIDTH && size . height == H264Config . VGA_HEIGHT ) ) { sizeAvailable = true ; break ; } } camera . release ( ) ; return sizeAvailable ; }
target:  Check if good camera sizes are available for encoder. Must be used only before open camera.